diff options
Diffstat (limited to 'cpu/mpc83xx')
-rw-r--r-- | cpu/mpc83xx/Makefile | 4 | ||||
-rw-r--r-- | cpu/mpc83xx/config.mk | 3 | ||||
-rw-r--r-- | cpu/mpc83xx/cpu.c | 523 | ||||
-rw-r--r-- | cpu/mpc83xx/cpu_init.c | 153 | ||||
-rw-r--r-- | cpu/mpc83xx/ecc.c | 390 | ||||
-rw-r--r-- | cpu/mpc83xx/i2c.c | 253 | ||||
-rw-r--r-- | cpu/mpc83xx/interrupts.c | 13 | ||||
-rw-r--r-- | cpu/mpc83xx/pci.c | 235 | ||||
-rw-r--r-- | cpu/mpc83xx/qe_io.c | 85 | ||||
-rw-r--r-- | cpu/mpc83xx/resetvec.S | 6 | ||||
-rw-r--r-- | cpu/mpc83xx/spd_sdram.c | 877 | ||||
-rw-r--r-- | cpu/mpc83xx/speed.c | 358 | ||||
-rw-r--r-- | cpu/mpc83xx/start.S | 89 | ||||
-rw-r--r-- | cpu/mpc83xx/traps.c | 32 | ||||
-rw-r--r-- | cpu/mpc83xx/u-boot.lds | 123 |
15 files changed, 2368 insertions, 776 deletions
diff --git a/cpu/mpc83xx/Makefile b/cpu/mpc83xx/Makefile index b2a6b3e9c56..23299700510 100644 --- a/cpu/mpc83xx/Makefile +++ b/cpu/mpc83xx/Makefile @@ -27,9 +27,9 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a -START = start.o resetvec.o +START = start.o COBJS = traps.o cpu.o cpu_init.o speed.o interrupts.o \ - i2c.o spd_sdram.o + spd_sdram.o ecc.o qe_io.o pci.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/mpc83xx/config.mk b/cpu/mpc83xx/config.mk index 8b4ff92b19c..ecf8a60bbef 100644 --- a/cpu/mpc83xx/config.mk +++ b/cpu/mpc83xx/config.mk @@ -24,3 +24,6 @@ PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi PLATFORM_CPPFLAGS += -DCONFIG_MPC83XX -DCONFIG_E300 \ -ffixed-r2 -ffixed-r29 -msoft-float + +# Use default linker script. Board port can override in board/*/config.mk +LDSCRIPT := $(SRCTREE)/cpu/mpc83xx/u-boot.lds diff --git a/cpu/mpc83xx/cpu.c b/cpu/mpc83xx/cpu.c index 20bba6c66b6..e634f0a25b2 100644 --- a/cpu/mpc83xx/cpu.c +++ b/cpu/mpc83xx/cpu.c @@ -1,5 +1,5 @@ /* - * Copyright 2004 Freescale Semiconductor, Inc. + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -18,11 +18,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * - * Change log: - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) */ /* @@ -35,43 +30,210 @@ #include <watchdog.h> #include <command.h> #include <mpc83xx.h> -#include <ft_build.h> #include <asm/processor.h> +#if defined(CONFIG_OF_FLAT_TREE) +#include <ft_build.h> +#elif defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#endif DECLARE_GLOBAL_DATA_PTR; - int checkcpu(void) { + volatile immap_t *immr; ulong clock = gd->cpu_clk; u32 pvr = get_pvr(); + u32 spridr; char buf[32]; - if ((pvr & 0xFFFF0000) != PVR_83xx) { - puts("Not MPC83xx Family!!!\n"); - return -1; + immr = (immap_t *)CFG_IMMR; + + puts("CPU: "); + + switch (pvr & 0xffff0000) { + case PVR_E300C1: + printf("e300c1, "); + break; + + case PVR_E300C2: + printf("e300c2, "); + break; + + case PVR_E300C3: + printf("e300c3, "); + break; + + default: + printf("Unknown core, "); } - puts("CPU: MPC83xx, "); - switch(pvr) { - case PVR_8349_REV10: + spridr = immr->sysconf.spridr; + switch(spridr) { + case SPR_8349E_REV10: + case SPR_8349E_REV11: + case SPR_8349E_REV31: + puts("MPC8349E, "); + break; + case SPR_8349_REV10: + case SPR_8349_REV11: + case SPR_8349_REV31: + puts("MPC8349, "); + break; + case SPR_8347E_REV10_TBGA: + case SPR_8347E_REV11_TBGA: + case SPR_8347E_REV31_TBGA: + case SPR_8347E_REV10_PBGA: + case SPR_8347E_REV11_PBGA: + case SPR_8347E_REV31_PBGA: + puts("MPC8347E, "); + break; + case SPR_8347_REV10_TBGA: + case SPR_8347_REV11_TBGA: + case SPR_8347_REV31_TBGA: + case SPR_8347_REV10_PBGA: + case SPR_8347_REV11_PBGA: + case SPR_8347_REV31_PBGA: + puts("MPC8347, "); + break; + case SPR_8343E_REV10: + case SPR_8343E_REV11: + case SPR_8343E_REV31: + puts("MPC8343E, "); + break; + case SPR_8343_REV10: + case SPR_8343_REV11: + case SPR_8343_REV31: + puts("MPC8343, "); break; - case PVR_8349_REV11: + case SPR_8360E_REV10: + case SPR_8360E_REV11: + case SPR_8360E_REV12: + case SPR_8360E_REV20: + case SPR_8360E_REV21: + puts("MPC8360E, "); + break; + case SPR_8360_REV10: + case SPR_8360_REV11: + case SPR_8360_REV12: + case SPR_8360_REV20: + case SPR_8360_REV21: + puts("MPC8360, "); + break; + case SPR_8323E_REV10: + case SPR_8323E_REV11: + puts("MPC8323E, "); + break; + case SPR_8323_REV10: + case SPR_8323_REV11: + puts("MPC8323, "); + break; + case SPR_8321E_REV10: + case SPR_8321E_REV11: + puts("MPC8321E, "); + break; + case SPR_8321_REV10: + case SPR_8321_REV11: + puts("MPC8321, "); + break; + case SPR_8311_REV10: + puts("MPC8311, "); + break; + case SPR_8311E_REV10: + puts("MPC8311E, "); + break; + case SPR_8313_REV10: + puts("MPC8313, "); + break; + case SPR_8313E_REV10: + puts("MPC8313E, "); break; default: - puts("Rev: Unknown\n"); - return -1; /* Not sure what this is */ + printf("Rev: Unknown revision number:%08x\n" + "Warning: Unsupported cpu revision!\n",spridr); + return 0; } - printf("Rev: %d.%d at %s MHz\n", (pvr & 0xf0) >> 4, - (pvr & 0x0f), strmhz(buf, clock)); + +#if defined(CONFIG_MPC834X) + /* Multiple revisons of 834x processors may have the same SPRIDR value. + * So use PVR to identify the revision number. + */ + printf("Rev: %02x at %s MHz", PVR_MAJ(pvr)<<4 | PVR_MIN(pvr), strmhz(buf, clock)); +#else + printf("Rev: %02x at %s MHz", spridr & 0x0000FFFF, strmhz(buf, clock)); +#endif + printf(", CSB: %4d MHz\n", gd->csb_clk / 1000000); return 0; } +/* + * Program a UPM with the code supplied in the table. + * + * The 'dummy' variable is used to increment the MAD. 'dummy' is + * supposed to be a pointer to the memory of the device being + * programmed by the UPM. The data in the MDR is written into + * memory and the MAD is incremented every time there's a read + * from 'dummy'. Unfortunately, the current prototype for this + * function doesn't allow for passing the address of this + * device, and changing the prototype will break a number lots + * of other code, so we need to use a round-about way of finding + * the value for 'dummy'. + * + * The value can be extracted from the base address bits of the + * Base Register (BR) associated with the specific UPM. To find + * that BR, we need to scan all 8 BRs until we find the one that + * has its MSEL bits matching the UPM we want. Once we know the + * right BR, we can extract the base address bits from it. + * + * The MxMR and the BR and OR of the chosen bank should all be + * configured before calling this function. + * + * Parameters: + * upm: 0=UPMA, 1=UPMB, 2=UPMC + * table: Pointer to an array of values to program + * size: Number of elements in the array. Must be 64 or less. + */ void upmconfig (uint upm, uint *table, uint size) { - hang(); /* FIXME: upconfig() needed? */ +#if defined(CONFIG_MPC834X) + volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile lbus83xx_t *lbus = &immap->lbus; + volatile uchar *dummy = NULL; + const u32 msel = (upm + 4) << BR_MSEL_SHIFT; /* What the MSEL field in BRn should be */ + volatile u32 *mxmr = &lbus->mamr + upm; /* Pointer to mamr, mbmr, or mcmr */ + uint i; + + /* Scan all the banks to determine the base address of the device */ + for (i = 0; i < 8; i++) { + if ((lbus->bank[i].br & BR_MSEL) == msel) { + dummy = (uchar *) (lbus->bank[i].br & BR_BA); + break; + } + } + + if (!dummy) { + printf("Error: %s() could not find matching BR\n", __FUNCTION__); + hang(); + } + + /* Set the OP field in the MxMR to "write" and the MAD field to 000000 */ + *mxmr = (*mxmr & 0xCFFFFFC0) | 0x10000000; + + for (i = 0; i < size; i++) { + lbus->mdr = table[i]; + __asm__ __volatile__ ("sync"); + *dummy; /* Write the value to memory and increment MAD */ + __asm__ __volatile__ ("sync"); + } + + /* Set the OP field in the MxMR to "normal" and the MAD field to 000000 */ + *mxmr &= 0xCFFFFFC0; +#else + printf("Error: %s() not defined for this configuration.\n", __FUNCTION__); + hang(); +#endif } @@ -83,7 +245,7 @@ do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) ulong addr; #endif - volatile immap_t *immap = (immap_t *) CFG_IMMRBAR; + volatile immap_t *immap = (immap_t *) CFG_IMMR; #ifdef MPC83xx_RESET /* Interrupts and MMU off */ @@ -150,11 +312,254 @@ unsigned long get_tbclk(void) #if defined(CONFIG_WATCHDOG) void watchdog_reset (void) { - hang(); /* FIXME: implement watchdog_reset()? */ + int re_enable = disable_interrupts(); + + /* Reset the 83xx watchdog */ + volatile immap_t *immr = (immap_t *) CFG_IMMR; + immr->wdt.swsrr = 0x556c; + immr->wdt.swsrr = 0xaa39; + + if (re_enable) + enable_interrupts (); } -#endif /* CONFIG_WATCHDOG */ +#endif -#if defined(CONFIG_OF_FLAT_TREE) +#if defined(CONFIG_OF_LIBFDT) + +/* + * "Setter" functions used to add/modify FDT entries. + */ +static int fdt_set_eth0(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + /* Fix it up if it exists, don't create it if it doesn't exist */ + if (fdt_get_property(blob, nodeoffset, name, 0)) { + return fdt_setprop(blob, nodeoffset, name, bd->bi_enetaddr, 6); + } + return 0; +} +#ifdef CONFIG_HAS_ETH1 +/* second onboard ethernet port */ +static int fdt_set_eth1(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + /* Fix it up if it exists, don't create it if it doesn't exist */ + if (fdt_get_property(blob, nodeoffset, name, 0)) { + return fdt_setprop(blob, nodeoffset, name, bd->bi_enet1addr, 6); + } + return 0; +} +#endif +#ifdef CONFIG_HAS_ETH2 +/* third onboard ethernet port */ +static int fdt_set_eth2(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + /* Fix it up if it exists, don't create it if it doesn't exist */ + if (fdt_get_property(blob, nodeoffset, name, 0)) { + return fdt_setprop(blob, nodeoffset, name, bd->bi_enet2addr, 6); + } + return 0; +} +#endif +#ifdef CONFIG_HAS_ETH3 +/* fourth onboard ethernet port */ +static int fdt_set_eth3(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + /* Fix it up if it exists, don't create it if it doesn't exist */ + if (fdt_get_property(blob, nodeoffset, name, 0)) { + return fdt_setprop(blob, nodeoffset, name, bd->bi_enet3addr, 6); + } + return 0; +} +#endif + +static int fdt_set_busfreq(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + u32 tmp; + /* Create or update the property */ + tmp = cpu_to_be32(bd->bi_busfreq); + return fdt_setprop(blob, nodeoffset, name, &tmp, sizeof(tmp)); +} + +static int fdt_set_tbfreq(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + u32 tmp; + /* Create or update the property */ + tmp = cpu_to_be32(OF_TBCLK); + return fdt_setprop(blob, nodeoffset, name, &tmp, sizeof(tmp)); +} + + +static int fdt_set_clockfreq(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + u32 tmp; + /* Create or update the property */ + tmp = cpu_to_be32(gd->core_clk); + return fdt_setprop(blob, nodeoffset, name, &tmp, sizeof(tmp)); +} + +#ifdef CONFIG_QE +static int fdt_set_qe_busfreq(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + u32 tmp; + /* Create or update the property */ + tmp = cpu_to_be32(gd->qe_clk); + return fdt_setprop(blob, nodeoffset, name, &tmp, sizeof(tmp)); +} + +static int fdt_set_qe_brgfreq(void *blob, int nodeoffset, const char *name, bd_t *bd) +{ + u32 tmp; + /* Create or update the property */ + tmp = cpu_to_be32(gd->brg_clk); + return fdt_setprop(blob, nodeoffset, name, &tmp, sizeof(tmp)); +} +#endif + +/* + * Fixups to the fdt. + */ +static const struct { + char *node; + char *prop; + int (*set_fn)(void *blob, int nodeoffset, const char *name, bd_t *bd); +} fixup_props[] = { + { "/cpus/" OF_CPU, + "timebase-frequency", + fdt_set_tbfreq + }, + { "/cpus/" OF_CPU, + "bus-frequency", + fdt_set_busfreq + }, + { "/cpus/" OF_CPU, + "clock-frequency", + fdt_set_clockfreq + }, + { "/" OF_SOC, + "bus-frequency", + fdt_set_busfreq + }, + { "/" OF_SOC "/serial@4500", + "clock-frequency", + fdt_set_busfreq + }, + { "/" OF_SOC "/serial@4600", + "clock-frequency", + fdt_set_busfreq + }, +#ifdef CONFIG_TSEC1 + { "/" OF_SOC "/ethernet@24000", + "mac-address", + fdt_set_eth0 + }, + { "/" OF_SOC "/ethernet@24000", + "local-mac-address", + fdt_set_eth0 + }, +#endif +#ifdef CONFIG_TSEC2 + { "/" OF_SOC "/ethernet@25000", + "mac-address", + fdt_set_eth1 + }, + { "/" OF_SOC "/ethernet@25000", + "local-mac-address", + fdt_set_eth1 + }, +#endif +#ifdef CONFIG_QE + { "/" OF_QE, + "brg-frequency", + fdt_set_qe_brgfreq + }, + { "/" OF_QE, + "bus-frequency", + fdt_set_qe_busfreq + }, +#ifdef CONFIG_UEC_ETH1 +#if CFG_UEC1_UCC_NUM == 0 /* UCC1 */ + { "/" OF_QE "/ucc@2000", + "mac-address", + fdt_set_eth0 + }, + { "/" OF_QE "/ucc@2000", + "local-mac-address", + fdt_set_eth0 + }, +#elif CFG_UEC1_UCC_NUM == 2 /* UCC3 */ + { "/" OF_QE "/ucc@2200", + "mac-address", + fdt_set_eth0 + }, + { "/" OF_QE "/ucc@2200", + "local-mac-address", + fdt_set_eth0 + }, +#endif +#endif /* CONFIG_UEC_ETH1 */ +#ifdef CONFIG_UEC_ETH2 +#if CFG_UEC2_UCC_NUM == 1 /* UCC2 */ + { "/" OF_QE "/ucc@3000", + "mac-address", + fdt_set_eth1 + }, + { "/" OF_QE "/ucc@3000", + "local-mac-address", + fdt_set_eth1 + }, +#elif CFG_UEC2_UCC_NUM == 3 /* UCC4 */ + { "/" OF_QE "/ucc@3200", + "mac-address", + fdt_set_eth1 + }, + { "/" OF_QE "/ucc@3200", + "local-mac-address", + fdt_set_eth1 + }, +#endif +#endif /* CONFIG_UEC_ETH2 */ +#endif /* CONFIG_QE */ +}; + +void +ft_cpu_setup(void *blob, bd_t *bd) +{ + int nodeoffset; + int err; + int j; + int tmp[2]; + + for (j = 0; j < (sizeof(fixup_props) / sizeof(fixup_props[0])); j++) { + nodeoffset = fdt_find_node_by_path(blob, fixup_props[j].node); + if (nodeoffset >= 0) { + err = fixup_props[j].set_fn(blob, nodeoffset, + fixup_props[j].prop, bd); + if (err < 0) + debug("Problem setting %s = %s: %s\n", + fixup_props[j].node, fixup_props[j].prop, + fdt_strerror(err)); + } else { + debug("Couldn't find %s: %s\n", + fixup_props[j].node, fdt_strerror(nodeoffset)); + } + } + + /* update, or add and update /memory node */ + nodeoffset = fdt_find_node_by_path(blob, "/memory"); + if (nodeoffset < 0) { + nodeoffset = fdt_add_subnode(blob, 0, "memory"); + if (nodeoffset < 0) + debug("failed to add /memory node: %s\n", + fdt_strerror(nodeoffset)); + } + if (nodeoffset >= 0) { + fdt_setprop(blob, nodeoffset, "device_type", + "memory", sizeof("memory")); + tmp[0] = cpu_to_be32(bd->bi_memstart); + tmp[1] = cpu_to_be32(bd->bi_memsize); + fdt_setprop(blob, nodeoffset, "reg", tmp, sizeof(tmp)); + } +} +#elif defined(CONFIG_OF_FLAT_TREE) void ft_cpu_setup(void *blob, bd_t *bd) { @@ -179,14 +584,64 @@ ft_cpu_setup(void *blob, bd_t *bd) if (p != NULL) *p = cpu_to_be32(clock); -#ifdef CONFIG_MPC83XX_TSEC1 - p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/address", &len); +#ifdef CONFIG_TSEC1 + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); +#endif + +#ifdef CONFIG_TSEC2 + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); +#endif + +#ifdef CONFIG_UEC_ETH1 +#if CFG_UEC1_UCC_NUM == 0 /* UCC1 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@2000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@2000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); +#elif CFG_UEC1_UCC_NUM == 2 /* UCC3 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@2200/mac-address", &len); + if (p != NULL) memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@2200/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); +#endif #endif -#ifdef CONFIG_MPC83XX_TSEC2 - p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/address", &len); +#ifdef CONFIG_UEC_ETH2 +#if CFG_UEC2_UCC_NUM == 1 /* UCC2 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@3000/mac-address", &len); + if (p != NULL) memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@3000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); +#elif CFG_UEC2_UCC_NUM == 3 /* UCC4 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@3200/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@3200/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); +#endif #endif } #endif @@ -194,8 +649,8 @@ ft_cpu_setup(void *blob, bd_t *bd) #if defined(CONFIG_DDR_ECC) void dma_init(void) { - volatile immap_t *immap = (immap_t *)CFG_IMMRBAR; - volatile dma8349_t *dma = &immap->dma; + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile dma83xx_t *dma = &immap->dma; volatile u32 status = swab32(dma->dmasr0); volatile u32 dmamr0 = swab32(dma->dmamr0); @@ -225,8 +680,8 @@ void dma_init(void) uint dma_check(void) { - volatile immap_t *immap = (immap_t *)CFG_IMMRBAR; - volatile dma8349_t *dma = &immap->dma; + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile dma83xx_t *dma = &immap->dma; volatile u32 status = swab32(dma->dmasr0); volatile u32 byte_count = swab32(dma->dmabcr0); @@ -244,8 +699,8 @@ uint dma_check(void) int dma_xfer(void *dest, u32 count, void *src) { - volatile immap_t *immap = (immap_t *)CFG_IMMRBAR; - volatile dma8349_t *dma = &immap->dma; + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile dma83xx_t *dma = &immap->dma; volatile u32 dmamr0; /* initialize DMASARn, DMADAR and DMAABCRn */ diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c index 6ed0992c070..722497966a1 100644 --- a/cpu/mpc83xx/cpu_init.c +++ b/cpu/mpc83xx/cpu_init.c @@ -1,5 +1,5 @@ /* - * Copyright 2004 Freescale Semiconductor, Inc. + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -18,11 +18,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * - * Change log: - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) */ #include <common.h> @@ -31,6 +26,30 @@ DECLARE_GLOBAL_DATA_PTR; +#ifdef CONFIG_QE +extern qe_iop_conf_t qe_iop_conf_tab[]; +extern void qe_config_iopin(u8 port, u8 pin, int dir, + int open_drain, int assign); +extern void qe_init(uint qe_base); +extern void qe_reset(void); + +static void config_qe_ioports(void) +{ + u8 port, pin; + int dir, open_drain, assign; + int i; + + for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) { + port = qe_iop_conf_tab[i].port; + pin = qe_iop_conf_tab[i].pin; + dir = qe_iop_conf_tab[i].dir; + open_drain = qe_iop_conf_tab[i].open_drain; + assign = qe_iop_conf_tab[i].assign; + qe_config_iopin(port, pin, dir, open_drain, assign); + } +} +#endif + /* * Breathe some life into the CPU... * @@ -46,6 +65,69 @@ void cpu_init_f (volatile immap_t * im) /* Clear initial global data */ memset ((void *) gd, 0, sizeof (gd_t)); + /* system performance tweaking */ + +#ifdef CFG_ACR_PIPE_DEP + /* Arbiter pipeline depth */ + im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | + (CFG_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT); +#endif + +#ifdef CFG_SPCR_TSEC1EP + /* TSEC1 Emergency priority */ + im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (CFG_SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT); +#endif + +#ifdef CFG_SPCR_TSEC2EP + /* TSEC2 Emergency priority */ + im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (CFG_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT); +#endif + +#ifdef CFG_SCCR_TSEC1CM + /* TSEC1 clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (CFG_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT); +#endif + +#ifdef CFG_SCCR_TSEC2CM + /* TSEC2 & I2C1 clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (CFG_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT); +#endif + +#ifdef CFG_SCCR_TSEC1ON + /* TSEC1 clock switch */ + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1ON) | (CFG_SCCR_TSEC1ON << SCCR_TSEC1ON_SHIFT); +#endif + +#ifdef CFG_SCCR_TSEC2ON + /* TSEC2 clock switch */ + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2ON) | (CFG_SCCR_TSEC2ON << SCCR_TSEC2ON_SHIFT); +#endif + +#ifdef CFG_SCCR_USBMPHCM + /* USB MPH clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_USBMPHCM) | (CFG_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT); +#endif + +#ifdef CFG_SCCR_PCICM + /* PCI & DMA clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_PCICM) | (CFG_SCCR_PCICM << SCCR_PCICM_SHIFT); +#endif + +#ifdef CFG_SCCR_USBDRCM + /* USB DR clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_USBDRCM) | (CFG_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT); +#endif + +#ifdef CFG_SCCR_ENCCM + /* Encryption clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) | (CFG_SCCR_ENCCM << SCCR_PCICM_SHIFT); +#endif + +#ifdef CFG_ACR_RPTCNT + /* Arbiter repeat count */ + im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT)); +#endif + /* RSR - Reset Status Register - clear all status (4.6.1.3) */ gd->reset_status = im->reset.rsr; im->reset.rsr = ~(RSR_RES); @@ -69,6 +151,15 @@ void cpu_init_f (volatile immap_t * im) #ifdef CFG_SICRL im->sysconf.sicrl = CFG_SICRL; #endif + /* DDR control driver register */ +#ifdef CFG_DDRCDR + im->sysconf.ddrcdr = CFG_DDRCDR; +#endif + +#ifdef CONFIG_QE + /* Config QE ioports */ + config_qe_ioports(); +#endif /* * Memory Controller: @@ -148,21 +239,57 @@ void cpu_init_f (volatile immap_t * im) im->sysconf.lblaw[7].ar = CFG_LBLAWAR7_PRELIM; #endif #ifdef CFG_GPIO1_PRELIM - im->pgio[0].dir = CFG_GPIO1_DIR; - im->pgio[0].dat = CFG_GPIO1_DAT; + im->gpio[0].dir = CFG_GPIO1_DIR; + im->gpio[0].dat = CFG_GPIO1_DAT; #endif #ifdef CFG_GPIO2_PRELIM - im->pgio[1].dir = CFG_GPIO2_DIR; - im->pgio[1].dat = CFG_GPIO2_DAT; + im->gpio[1].dir = CFG_GPIO2_DIR; + im->gpio[1].dat = CFG_GPIO2_DAT; #endif } +int cpu_init_r (void) +{ +#ifdef CONFIG_QE + uint qe_base = CFG_IMMR + 0x00100000; /* QE immr base */ + qe_init(qe_base); + qe_reset(); +#endif + return 0; +} /* - * Initialize higher level parts of CPU like time base and timers. + * Figure out the cause of the reset */ - -int cpu_init_r (void) +int prt_83xx_rsr(void) { + static struct { + ulong mask; + char *desc; + } bits[] = { + { + RSR_SWSR, "Software Soft"}, { + RSR_SWHR, "Software Hard"}, { + RSR_JSRS, "JTAG Soft"}, { + RSR_CSHR, "Check Stop"}, { + RSR_SWRS, "Software Watchdog"}, { + RSR_BMRS, "Bus Monitor"}, { + RSR_SRS, "External/Internal Soft"}, { + RSR_HRS, "External/Internal Hard"} + }; + static int n = sizeof bits / sizeof bits[0]; + ulong rsr = gd->reset_status; + int i; + char *sep; + + puts("Reset Status:"); + + sep = " "; + for (i = 0; i < n; i++) + if (rsr & bits[i].mask) { + printf("%s%s", sep, bits[i].desc); + sep = ", "; + } + puts("\n\n"); return 0; } diff --git a/cpu/mpc83xx/ecc.c b/cpu/mpc83xx/ecc.c new file mode 100644 index 00000000000..6f13094243a --- /dev/null +++ b/cpu/mpc83xx/ecc.c @@ -0,0 +1,390 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. + * + * Dave Liu <daveliu@freescale.com> + * based on the contribution of Marian Balakowicz <m8@semihalf.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <common.h> +#include <mpc83xx.h> +#include <command.h> + +#if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) +void ecc_print_status(void) +{ + volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + + printf("\nECC mode: %s\n\n", + (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF"); + + /* Interrupts */ + printf("Memory Error Interrupt Enable:\n"); + printf(" Multiple-Bit Error Interrupt Enable: %d\n", + (ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0); + printf(" Single-Bit Error Interrupt Enable: %d\n", + (ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0); + printf(" Memory Select Error Interrupt Enable: %d\n\n", + (ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0); + + /* Error disable */ + printf("Memory Error Disable:\n"); + printf(" Multiple-Bit Error Disable: %d\n", + (ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0); + printf(" Sinle-Bit Error Disable: %d\n", + (ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0); + printf(" Memory Select Error Disable: %d\n\n", + (ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0); + + /* Error injection */ + printf("Memory Data Path Error Injection Mask High/Low: %08lx %08lx\n", + ddr->data_err_inject_hi, ddr->data_err_inject_lo); + + printf("Memory Data Path Error Injection Mask ECC:\n"); + printf(" ECC Mirror Byte: %d\n", + (ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0); + printf(" ECC Injection Enable: %d\n", + (ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0); + printf(" ECC Error Injection Mask: 0x%02x\n\n", + ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM); + + /* SBE counter/threshold */ + printf("Memory Single-Bit Error Management (0..255):\n"); + printf(" Single-Bit Error Threshold: %d\n", + (ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT); + printf(" Single-Bit Error Counter: %d\n\n", + (ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT); + + /* Error detect */ + printf("Memory Error Detect:\n"); + printf(" Multiple Memory Errors: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0); + printf(" Multiple-Bit Error: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0); + printf(" Single-Bit Error: %d\n", + (ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0); + printf(" Memory Select Error: %d\n\n", + (ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0); + + /* Capture data */ + printf("Memory Error Address Capture: 0x%08lx\n", ddr->capture_address); + printf("Memory Data Path Read Capture High/Low: %08lx %08lx\n", + ddr->capture_data_hi, ddr->capture_data_lo); + printf("Memory Data Path Read Capture ECC: 0x%02x\n\n", + ddr->capture_ecc & CAPTURE_ECC_ECE); + + printf("Memory Error Attributes Capture:\n"); + printf(" Data Beat Number: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >> + ECC_CAPT_ATTR_BNUM_SHIFT); + printf(" Transaction Size: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >> + ECC_CAPT_ATTR_TSIZ_SHIFT); + printf(" Transaction Source: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >> + ECC_CAPT_ATTR_TSRC_SHIFT); + printf(" Transaction Type: %d\n", + (ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >> + ECC_CAPT_ATTR_TTYP_SHIFT); + printf(" Error Information Valid: %d\n\n", + ddr->capture_attributes & ECC_CAPT_ATTR_VLD); +} + +int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + volatile u32 val; + u64 *addr; + u32 count; + register u64 *i; + u32 ret[2]; + u32 pattern[2]; + u32 writeback[2]; + + /* The pattern is written into memory to generate error */ + pattern[0] = 0xfedcba98UL; + pattern[1] = 0x76543210UL; + + /* After injecting error, re-initialize the memory with the value */ + writeback[0] = 0x01234567UL; + writeback[1] = 0x89abcdefUL; + + if (argc > 4) { + printf("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if (argc == 2) { + if (strcmp(argv[1], "status") == 0) { + ecc_print_status(); + return 0; + } else if (strcmp(argv[1], "captureclear") == 0) { + ddr->capture_address = 0; + ddr->capture_data_hi = 0; + ddr->capture_data_lo = 0; + ddr->capture_ecc = 0; + ddr->capture_attributes = 0; + return 0; + } + } + if (argc == 3) { + if (strcmp(argv[1], "sbecnt") == 0) { + val = simple_strtoul(argv[2], NULL, 10); + if (val > 255) { + printf("Incorrect Counter value, " + "should be 0..255\n"); + return 1; + } + + val = (val << ECC_ERROR_MAN_SBEC_SHIFT); + val |= (ddr->err_sbe & ECC_ERROR_MAN_SBET); + + ddr->err_sbe = val; + return 0; + } else if (strcmp(argv[1], "sbethr") == 0) { + val = simple_strtoul(argv[2], NULL, 10); + if (val > 255) { + printf("Incorrect Counter value, " + "should be 0..255\n"); + return 1; + } + + val = (val << ECC_ERROR_MAN_SBET_SHIFT); + val |= (ddr->err_sbe & ECC_ERROR_MAN_SBEC); + + ddr->err_sbe = val; + return 0; + } else if (strcmp(argv[1], "errdisable") == 0) { + val = ddr->err_disable; + + if (strcmp(argv[2], "+sbe") == 0) { + val |= ECC_ERROR_DISABLE_SBED; + } else if (strcmp(argv[2], "+mbe") == 0) { + val |= ECC_ERROR_DISABLE_MBED; + } else if (strcmp(argv[2], "+mse") == 0) { + val |= ECC_ERROR_DISABLE_MSED; + } else if (strcmp(argv[2], "+all") == 0) { + val |= (ECC_ERROR_DISABLE_SBED | + ECC_ERROR_DISABLE_MBED | + ECC_ERROR_DISABLE_MSED); + } else if (strcmp(argv[2], "-sbe") == 0) { + val &= ~ECC_ERROR_DISABLE_SBED; + } else if (strcmp(argv[2], "-mbe") == 0) { + val &= ~ECC_ERROR_DISABLE_MBED; + } else if (strcmp(argv[2], "-mse") == 0) { + val &= ~ECC_ERROR_DISABLE_MSED; + } else if (strcmp(argv[2], "-all") == 0) { + val &= ~(ECC_ERROR_DISABLE_SBED | + ECC_ERROR_DISABLE_MBED | + ECC_ERROR_DISABLE_MSED); + } else { + printf("Incorrect err_disable field\n"); + return 1; + } + + ddr->err_disable = val; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + return 0; + } else if (strcmp(argv[1], "errdetectclr") == 0) { + val = ddr->err_detect; + + if (strcmp(argv[2], "mme") == 0) { + val |= ECC_ERROR_DETECT_MME; + } else if (strcmp(argv[2], "sbe") == 0) { + val |= ECC_ERROR_DETECT_SBE; + } else if (strcmp(argv[2], "mbe") == 0) { + val |= ECC_ERROR_DETECT_MBE; + } else if (strcmp(argv[2], "mse") == 0) { + val |= ECC_ERROR_DETECT_MSE; + } else if (strcmp(argv[2], "all") == 0) { + val |= (ECC_ERROR_DETECT_MME | + ECC_ERROR_DETECT_MBE | + ECC_ERROR_DETECT_SBE | + ECC_ERROR_DETECT_MSE); + } else { + printf("Incorrect err_detect field\n"); + return 1; + } + + ddr->err_detect = val; + return 0; + } else if (strcmp(argv[1], "injectdatahi") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + + ddr->data_err_inject_hi = val; + return 0; + } else if (strcmp(argv[1], "injectdatalo") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + + ddr->data_err_inject_lo = val; + return 0; + } else if (strcmp(argv[1], "injectecc") == 0) { + val = simple_strtoul(argv[2], NULL, 16); + if (val > 0xff) { + printf("Incorrect ECC inject mask, " + "should be 0x00..0xff\n"); + return 1; + } + val |= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM); + + ddr->ecc_err_inject = val; + return 0; + } else if (strcmp(argv[1], "inject") == 0) { + val = ddr->ecc_err_inject; + + if (strcmp(argv[2], "en") == 0) + val |= ECC_ERR_INJECT_EIEN; + else if (strcmp(argv[2], "dis") == 0) + val &= ~ECC_ERR_INJECT_EIEN; + else + printf("Incorrect command\n"); + + ddr->ecc_err_inject = val; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + return 0; + } else if (strcmp(argv[1], "mirror") == 0) { + val = ddr->ecc_err_inject; + + if (strcmp(argv[2], "en") == 0) + val |= ECC_ERR_INJECT_EMB; + else if (strcmp(argv[2], "dis") == 0) + val &= ~ECC_ERR_INJECT_EMB; + else + printf("Incorrect command\n"); + + ddr->ecc_err_inject = val; + return 0; + } + } + if (argc == 4) { + if (strcmp(argv[1], "testdw") == 0) { + addr = (u64 *) simple_strtoul(argv[2], NULL, 16); + count = simple_strtoul(argv[3], NULL, 16); + + if ((u32) addr % 8) { + printf("Address not alligned on " + "double word boundary\n"); + return 1; + } + disable_interrupts(); + + for (i = addr; i < addr + count; i++) { + + /* enable injects */ + ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* write memory location injecting errors */ + ppcDWstore((u32 *) i, pattern); + __asm__ __volatile__("sync"); + + /* disable injects */ + ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* read data, this generates ECC error */ + ppcDWload((u32 *) i, ret); + __asm__ __volatile__("sync"); + + /* re-initialize memory, double word write the location again, + * generates new ECC code this time */ + ppcDWstore((u32 *) i, writeback); + __asm__ __volatile__("sync"); + } + enable_interrupts(); + return 0; + } + if (strcmp(argv[1], "testword") == 0) { + addr = (u64 *) simple_strtoul(argv[2], NULL, 16); + count = simple_strtoul(argv[3], NULL, 16); + + if ((u32) addr % 8) { + printf("Address not alligned on " + "double word boundary\n"); + return 1; + } + disable_interrupts(); + + for (i = addr; i < addr + count; i++) { + + /* enable injects */ + ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* write memory location injecting errors */ + *(u32 *) i = 0xfedcba98UL; + __asm__ __volatile__("sync"); + + /* sub double word write, + * bus will read-modify-write, + * generates ECC error */ + *((u32 *) i + 1) = 0x76543210UL; + __asm__ __volatile__("sync"); + + /* disable injects */ + ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN; + __asm__ __volatile__("sync"); + __asm__ __volatile__("isync"); + + /* re-initialize memory, + * double word write the location again, + * generates new ECC code this time */ + ppcDWstore((u32 *) i, writeback); + __asm__ __volatile__("sync"); + } + enable_interrupts(); + return 0; + } + } + printf("Usage:\n%s\n", cmdtp->usage); + return 1; +} + +U_BOOT_CMD(ecc, 4, 0, do_ecc, + "ecc - support for DDR ECC features\n", + "status - print out status info\n" + "ecc captureclear - clear capture regs data\n" + "ecc sbecnt <val> - set Single-Bit Error counter\n" + "ecc sbethr <val> - set Single-Bit Threshold\n" + "ecc errdisable <flag> - clear/set disable Memory Error Disable, flag:\n" + " [-|+]sbe - Single-Bit Error\n" + " [-|+]mbe - Multiple-Bit Error\n" + " [-|+]mse - Memory Select Error\n" + " [-|+]all - all errors\n" + "ecc errdetectclr <flag> - clear Memory Error Detect, flag:\n" + " mme - Multiple Memory Errors\n" + " sbe - Single-Bit Error\n" + " mbe - Multiple-Bit Error\n" + " mse - Memory Select Error\n" + " all - all errors\n" + "ecc injectdatahi <hi> - set Memory Data Path Error Injection Mask High\n" + "ecc injectdatalo <lo> - set Memory Data Path Error Injection Mask Low\n" + "ecc injectecc <ecc> - set ECC Error Injection Mask\n" + "ecc inject <en|dis> - enable/disable error injection\n" + "ecc mirror <en|dis> - enable/disable mirror byte\n" + "ecc testdw <addr> <cnt> - test mem region with double word access:\n" + " - enables injects\n" + " - writes pattern injecting errors with double word access\n" + " - disables injects\n" + " - reads pattern back with double word access, generates error\n" + " - re-inits memory\n" + "ecc testword <addr> <cnt> - test mem region with word access:\n" + " - enables injects\n" + " - writes pattern injecting errors with word access\n" + " - writes pattern with word access, generates error\n" + " - disables injects\n" " - re-inits memory"); +#endif diff --git a/cpu/mpc83xx/i2c.c b/cpu/mpc83xx/i2c.c deleted file mode 100644 index 70450f9e49c..00000000000 --- a/cpu/mpc83xx/i2c.c +++ /dev/null @@ -1,253 +0,0 @@ -/* - * (C) Copyright 2003,Motorola Inc. - * Xianghua Xiao <x.xiao@motorola.com> - * Adapted for Motorola 85xx chip. - * - * (C) Copyright 2003 - * Gleb Natapov <gnatapov@mrv.com> - * Some bits are taken from linux driver writen by adrian@humboldt.co.uk - * - * Hardware I2C driver for MPC107 PCI bridge. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - * Change log: - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) - */ - -#include <common.h> -#include <command.h> -#include <asm/io.h> - -#ifdef CONFIG_HARD_I2C -#include <i2c.h> -#include <asm/i2c.h> - -#if defined(CONFIG_MPC8349EMDS) || defined(CONFIG_TQM834X) -i2c_t * mpc8349_i2c = (i2c_t*)(CFG_IMMRBAR + CFG_I2C_OFFSET); -#endif - -void -i2c_init(int speed, int slaveadd) -{ - /* stop I2C controller */ - writeb(0x00 , &I2C->cr); - - /* set clock */ - writeb(0x3f, &I2C->fdr); - - /* set default filter */ - writeb(0x10,&I2C->dfsrr); - - /* write slave address */ - writeb(slaveadd, &I2C->adr); - - /* clear status register */ - writeb(0x00, &I2C->sr); - - /* start I2C controller */ - writeb(I2C_CR_MEN, &I2C->cr); -} - -static __inline__ int -i2c_wait4bus (void) -{ - ulong timeval = get_timer (0); - while (readb(&I2C->sr) & I2C_SR_MBB) { - if (get_timer (timeval) > I2C_TIMEOUT) { - return -1; - } - } - return 0; -} - -static __inline__ int -i2c_wait (int write) -{ - u32 csr; - ulong timeval = get_timer(0); - do { - csr = readb(&I2C->sr); - - if (!(csr & I2C_SR_MIF)) - continue; - - writeb(0x0, &I2C->sr); - - if (csr & I2C_SR_MAL) { - debug("i2c_wait: MAL\n"); - return -1; - } - - if (!(csr & I2C_SR_MCF)) { - debug("i2c_wait: unfinished\n"); - return -1; - } - - if (write == I2C_WRITE && (csr & I2C_SR_RXAK)) { - debug("i2c_wait: No RXACK\n"); - return -1; - } - - return 0; - } while (get_timer (timeval) < I2C_TIMEOUT); - - debug("i2c_wait: timed out\n"); - return -1; -} - -static __inline__ int -i2c_write_addr (u8 dev, u8 dir, int rsta) -{ - writeb(I2C_CR_MEN | I2C_CR_MSTA | I2C_CR_MTX | - (rsta?I2C_CR_RSTA:0), - &I2C->cr); - - writeb((dev << 1) | dir, &I2C->dr); - - if (i2c_wait (I2C_WRITE) < 0) - return 0; - return 1; -} - -static __inline__ int -__i2c_write (u8 *data, int length) -{ - int i; - - writeb(I2C_CR_MEN | I2C_CR_MSTA | I2C_CR_MTX, - &I2C->cr); - - for (i=0; i < length; i++) { - writeb(data[i], &I2C->dr); - - if (i2c_wait (I2C_WRITE) < 0) - break; - } - return i; -} - -static __inline__ int -__i2c_read (u8 *data, int length) -{ - int i; - - writeb(I2C_CR_MEN | I2C_CR_MSTA | - ((length == 1) ? I2C_CR_TXAK : 0), - &I2C->cr); - - /* dummy read */ - readb(&I2C->dr); - - for (i=0; i < length; i++) { - if (i2c_wait (I2C_READ) < 0) - break; - - /* Generate ack on last next to last byte */ - if (i == length - 2) - writeb(I2C_CR_MEN | I2C_CR_MSTA | - I2C_CR_TXAK, - &I2C->cr); - - /* Generate stop on last byte */ - if (i == length - 1) - writeb(I2C_CR_MEN | I2C_CR_TXAK, &I2C->cr); - - data[i] = readb(&I2C->dr); - } - return i; -} - -int -i2c_read (u8 dev, uint addr, int alen, u8 *data, int length) -{ - int i = 0; - u8 *a = (u8*)&addr; - - if (i2c_wait4bus () < 0) - goto exit; - - if (i2c_write_addr (dev, I2C_WRITE, 0) == 0) - goto exit; - - if (__i2c_write (&a[4 - alen], alen) != alen) - goto exit; - - if (i2c_write_addr (dev, I2C_READ, 1) == 0) - goto exit; - - i = __i2c_read (data, length); - - exit: - writeb(I2C_CR_MEN, &I2C->cr); - return !(i == length); -} - -int -i2c_write (u8 dev, uint addr, int alen, u8 *data, int length) -{ - int i = 0; - u8 *a = (u8*)&addr; - - if (i2c_wait4bus () < 0) - goto exit; - - if (i2c_write_addr (dev, I2C_WRITE, 0) == 0) - goto exit; - - if (__i2c_write (&a[4 - alen], alen) != alen) - goto exit; - - i = __i2c_write (data, length); - - exit: - writeb(I2C_CR_MEN, &I2C->cr); - return !(i == length); -} - -int i2c_probe (uchar chip) -{ - int tmp; - - /* - * Try to read the first location of the chip. The underlying - * driver doesn't appear to support sending just the chip address - * and looking for an <ACK> back. - */ - udelay(10000); - return i2c_read (chip, 0, 1, (uchar *)&tmp, 1); -} - -uchar i2c_reg_read (uchar i2c_addr, uchar reg) -{ - uchar buf[1]; - - i2c_read (i2c_addr, reg, 1, buf, 1); - - return (buf[0]); -} - -void i2c_reg_write (uchar i2c_addr, uchar reg, uchar val) -{ - i2c_write (i2c_addr, reg, 1, &val, 1); -} - -#endif /* CONFIG_HARD_I2C */ diff --git a/cpu/mpc83xx/interrupts.c b/cpu/mpc83xx/interrupts.c index 5a0babfcbb9..98ed21ccfa6 100644 --- a/cpu/mpc83xx/interrupts.c +++ b/cpu/mpc83xx/interrupts.c @@ -21,13 +21,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * - * Change log: - * - * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 22-Oct-00 - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) */ #include <common.h> @@ -45,7 +38,7 @@ struct irq_action { int interrupt_init_cpu (unsigned *decrementer_count) { - volatile immap_t *immr = (immap_t *) CFG_IMMRBAR; + volatile immap_t *immr = (immap_t *) CFG_IMMR; *decrementer_count = (gd->bus_clk / 4) / CFG_HZ; @@ -88,7 +81,7 @@ void timer_interrupt_cpu (struct pt_regs *regs) } -#if (CONFIG_COMMANDS & CFG_CMD_IRQ) +#if defined(CONFIG_CMD_IRQ) /* ripped this out of ppc4xx/interrupts.c */ @@ -101,4 +94,4 @@ do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) { } -#endif /* CONFIG_COMMANDS & CFG_CMD_IRQ */ +#endif diff --git a/cpu/mpc83xx/pci.c b/cpu/mpc83xx/pci.c new file mode 100644 index 00000000000..5675afe9710 --- /dev/null +++ b/cpu/mpc83xx/pci.c @@ -0,0 +1,235 @@ +/* + * Copyright (C) Freescale Semiconductor, Inc. 2007 + * + * Author: Scott Wood <scottwood@freescale.com>, + * with some bits from older board-specific PCI initialization. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <pci.h> + +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#elif defined(CONFIG_OF_FLAT_TREE) +#include <ft_build.h> +#endif + +#include <asm/mpc8349_pci.h> + +#ifdef CONFIG_83XX_GENERIC_PCI +#define MAX_BUSES 2 + +DECLARE_GLOBAL_DATA_PTR; + +static struct pci_controller pci_hose[MAX_BUSES]; +static int pci_num_buses; + +static void pci_init_bus(int bus, struct pci_region *reg) +{ + volatile immap_t *immr = (volatile immap_t *)CFG_IMMR; + volatile pot83xx_t *pot = immr->ios.pot; + volatile pcictrl83xx_t *pci_ctrl = &immr->pci_ctrl[bus]; + struct pci_controller *hose = &pci_hose[bus]; + u32 dev; + u16 reg16; + int i; + + if (bus == 1) + pot += 3; + + /* Setup outbound translation windows */ + for (i = 0; i < 3; i++, reg++, pot++) { + if (reg->size == 0) + break; + + hose->regions[i] = *reg; + hose->region_count++; + + pot->potar = reg->bus_start >> 12; + pot->pobar = reg->phys_start >> 12; + pot->pocmr = ~(reg->size - 1) >> 12; + + if (reg->flags & PCI_REGION_IO) + pot->pocmr |= POCMR_IO; +#ifdef CONFIG_83XX_PCI_STREAMING + else if (reg->flags & PCI_REGION_PREFETCH) + pot->pocmr |= POCMR_SE; +#endif + + if (bus == 1) + pot->pocmr |= POCMR_DST; + + pot->pocmr |= POCMR_EN; + } + + /* Point inbound translation at RAM */ + pci_ctrl->pitar1 = 0; + pci_ctrl->pibar1 = 0; + pci_ctrl->piebar1 = 0; + pci_ctrl->piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | + PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); + + i = hose->region_count++; + hose->regions[i].bus_start = 0; + hose->regions[i].phys_start = 0; + hose->regions[i].size = gd->ram_size; + hose->regions[i].flags = PCI_REGION_MEM | PCI_REGION_MEMORY; + + hose->first_busno = 0; + hose->last_busno = 0xff; + + pci_setup_indirect(hose, CFG_IMMR + 0x8300 + bus * 0x80, + CFG_IMMR + 0x8304 + bus * 0x80); + + pci_register_hose(hose); + + /* + * Write to Command register + */ + reg16 = 0xff; + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word(hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); +} + +/* + * The caller must have already set OCCR, and the PCI_LAW BARs + * must have been set to cover all of the requested regions. + * + * If fewer than three regions are requested, then the region + * list is terminated with a region of size 0. + */ +void mpc83xx_pci_init(int num_buses, struct pci_region **reg, int warmboot) +{ + volatile immap_t *immr = (volatile immap_t *)CFG_IMMR; + int i; + + if (num_buses > MAX_BUSES) { + printf("%d PCI buses requsted, %d supported\n", + num_buses, MAX_BUSES); + + num_buses = MAX_BUSES; + } + + pci_num_buses = num_buses; + + /* + * Release PCI RST Output signal. + * Power on to RST high must be at least 100 ms as per PCI spec. + * On warm boots only 1 ms is required. + */ + udelay(warmboot ? 1000 : 100000); + + for (i = 0; i < num_buses; i++) + immr->pci_ctrl[i].gcr = 1; + + /* + * RST high to first config access must be at least 2^25 cycles + * as per PCI spec. This could be cut in half if we know we're + * running at 66MHz. This could be insufficiently long if we're + * running the PCI bus at significantly less than 33MHz. + */ + udelay(1020000); + + for (i = 0; i < num_buses; i++) + pci_init_bus(i, reg[i]); +} + +#if defined(CONFIG_OF_LIBFDT) +void ft_pci_setup(void *blob, bd_t *bd) +{ + int nodeoffset; + int err; + int tmp[2]; + + if (pci_num_buses < 1) + return; + + nodeoffset = fdt_find_node_by_path(blob, "/" OF_SOC "/pci@8500"); + if (nodeoffset >= 0) { + tmp[0] = cpu_to_be32(pci_hose[0].first_busno); + tmp[1] = cpu_to_be32(pci_hose[0].last_busno); + err = fdt_setprop(blob, nodeoffset, "bus-range", + tmp, sizeof(tmp)); + + tmp[0] = cpu_to_be32(gd->pci_clk); + err = fdt_setprop(blob, nodeoffset, "clock-frequency", + tmp, sizeof(tmp[0])); + } + + if (pci_num_buses < 2) + return; + + nodeoffset = fdt_find_node_by_path(blob, "/" OF_SOC "/pci@8600"); + if (nodeoffset >= 0) { + tmp[0] = cpu_to_be32(pci_hose[0].first_busno); + tmp[1] = cpu_to_be32(pci_hose[0].last_busno); + err = fdt_setprop(blob, nodeoffset, "bus-range", + tmp, sizeof(tmp)); + + tmp[0] = cpu_to_be32(gd->pci_clk); + err = fdt_setprop(blob, nodeoffset, "clock-frequency", + tmp, sizeof(tmp[0])); + } +} +#elif CONFIG_OF_FLAT_TREE +void ft_pci_setup(void *blob, bd_t *bd) +{ + u32 *p; + int len; + + if (pci_num_buses < 1) + return; + + p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8500/bus-range", &len); + if (p) { + p[0] = pci_hose[0].first_busno; + p[1] = pci_hose[0].last_busno; + } + + if (pci_num_buses < 2) + return; + + p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8600/bus-range", &len); + if (p) { + p[0] = pci_hose[1].first_busno; + p[1] = pci_hose[1].last_busno; + } +} +#endif /* CONFIG_OF_FLAT_TREE */ + +#endif /* CONFIG_83XX_GENERIC_PCI */ diff --git a/cpu/mpc83xx/qe_io.c b/cpu/mpc83xx/qe_io.c new file mode 100644 index 00000000000..8b3937aa9b9 --- /dev/null +++ b/cpu/mpc83xx/qe_io.c @@ -0,0 +1,85 @@ +/* + * Copyright (C) 2006 Freescale Semiconductor, Inc. + * + * Dave Liu <daveliu@freescale.com> + * based on source code of Shlomi Gridish + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include "common.h" +#include "asm/errno.h" +#include "asm/io.h" +#include "asm/immap_83xx.h" + +#if defined(CONFIG_QE) +#define NUM_OF_PINS 32 +void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign) +{ + u32 pin_2bit_mask; + u32 pin_2bit_dir; + u32 pin_2bit_assign; + u32 pin_1bit_mask; + u32 tmp_val; + volatile immap_t *im = (volatile immap_t *)CFG_IMMR; + volatile qepio83xx_t *par_io = (volatile qepio83xx_t *)&im->qepio; + + /* Caculate pin location and 2bit mask and dir */ + pin_2bit_mask = (u32)(0x3 << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); + pin_2bit_dir = (u32)(dir << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); + + /* Setup the direction */ + tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? \ + in_be32(&par_io->ioport[port].dir2) : + in_be32(&par_io->ioport[port].dir1); + + if (pin > (NUM_OF_PINS/2) -1) { + out_be32(&par_io->ioport[port].dir2, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].dir2, pin_2bit_dir | tmp_val); + } else { + out_be32(&par_io->ioport[port].dir1, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].dir1, pin_2bit_dir | tmp_val); + } + + /* Calculate pin location for 1bit mask */ + pin_1bit_mask = (u32)(1 << (NUM_OF_PINS - (pin+1))); + + /* Setup the open drain */ + tmp_val = in_be32(&par_io->ioport[port].podr); + if (open_drain) { + out_be32(&par_io->ioport[port].podr, pin_1bit_mask | tmp_val); + } else { + out_be32(&par_io->ioport[port].podr, ~pin_1bit_mask & tmp_val); + } + + /* Setup the assignment */ + tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? + in_be32(&par_io->ioport[port].ppar2): + in_be32(&par_io->ioport[port].ppar1); + pin_2bit_assign = (u32)(assign + << (NUM_OF_PINS - (pin%(NUM_OF_PINS/2)+1)*2)); + + /* Clear and set 2 bits mask */ + if (pin > (NUM_OF_PINS/2) - 1) { + out_be32(&par_io->ioport[port].ppar2, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].ppar2, pin_2bit_assign | tmp_val); + } else { + out_be32(&par_io->ioport[port].ppar1, ~pin_2bit_mask & tmp_val); + out_be32(&par_io->ioport[port].ppar1, pin_2bit_assign | tmp_val); + } +} + +#endif /* CONFIG_QE */ diff --git a/cpu/mpc83xx/resetvec.S b/cpu/mpc83xx/resetvec.S deleted file mode 100644 index 3dfcd0dcd57..00000000000 --- a/cpu/mpc83xx/resetvec.S +++ /dev/null @@ -1,6 +0,0 @@ - .section .resetvec,"ax" -#ifndef FIXME -#if 0 - b _start_e500 -#endif -#endif diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c index 48624feca61..ee2d0385e45 100644 --- a/cpu/mpc83xx/spd_sdram.c +++ b/cpu/mpc83xx/spd_sdram.c @@ -1,8 +1,10 @@ /* + * (C) Copyright 2006 Freescale Semiconductor, Inc. + * * (C) Copyright 2006 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * - * Copyright 2004 Freescale Semiconductor. + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. * (C) Copyright 2003 Motorola Inc. * Xianghua Xiao (X.Xiao@motorola.com) * @@ -23,11 +25,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * - * Change log: - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) */ #include <common.h> @@ -37,9 +34,35 @@ #include <asm/mmu.h> #include <spd_sdram.h> +void board_add_ram_info(int use_default) +{ + volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + + printf(" (DDR%d", ((ddr->sdram_cfg & SDRAM_CFG_SDRAM_TYPE_MASK) + >> SDRAM_CFG_SDRAM_TYPE_SHIFT) - 1); + + if (ddr->sdram_cfg & SDRAM_CFG_32_BE) + puts(", 32-bit"); + else + puts(", 64-bit"); + + if (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) + puts(", ECC on)"); + else + puts(", ECC off)"); + +#if defined(CFG_LB_SDRAM) && defined(CFG_LBC_SDRAM_SIZE) + puts("\nSDRAM: "); + print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, " (local bus)"); +#endif +} + #ifdef CONFIG_SPD_EEPROM -#if defined(CONFIG_DDR_ECC) +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC) extern void dma_init(void); extern uint dma_check(void); extern int dma_xfer(void *dest, uint count, void *src); @@ -52,16 +75,16 @@ extern int dma_xfer(void *dest, uint count, void *src); /* * Convert picoseconds into clock cycles (rounding up if needed). */ - int picos_to_clk(int picos) { + unsigned int ddr_bus_clk; int clks; - clks = picos / (2000000000 / (get_bus_freq(0) / 1000)); - if (picos % (2000000000 / (get_bus_freq(0) / 1000)) != 0) { - clks++; - } + ddr_bus_clk = gd->ddr_clk >> 1; + clks = picos / (1000000000 / (ddr_bus_clk / 1000)); + if (picos % (1000000000 / (ddr_bus_clk / 1000)) != 0) + clks++; return clks; } @@ -103,60 +126,141 @@ static void spd_debug(spd_eeprom_t *spd) long int spd_sdram() { - volatile immap_t *immap = (immap_t *)CFG_IMMRBAR; - volatile ddr8349_t *ddr = &immap->ddr; - volatile law8349_t *ecm = &immap->sysconf.ddrlaw[0]; + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile ddr83xx_t *ddr = &immap->ddr; + volatile law83xx_t *ecm = &immap->sysconf.ddrlaw[0]; spd_eeprom_t spd; - unsigned tmp, tmp1; + unsigned int n_ranks; + unsigned int odt_rd_cfg, odt_wr_cfg; + unsigned char twr_clk, twtr_clk; + unsigned int sdram_type; unsigned int memsize; unsigned int law_size; - unsigned char caslat; - unsigned int trfc, trfc_clk, trfc_low; - + unsigned char caslat, caslat_ctrl; + unsigned int trfc, trfc_clk, trfc_low, trfc_high; + unsigned int trcd_clk, trtp_clk; + unsigned char cke_min_clk; + unsigned char add_lat, wr_lat; + unsigned char wr_data_delay; + unsigned char four_act; + unsigned char cpo; + unsigned char burstlen; + unsigned char odt_cfg, mode_odt_enable; + unsigned int max_bus_clk; + unsigned int max_data_rate, effective_data_rate; + unsigned int ddrc_clk; + unsigned int refresh_clk; + unsigned int sdram_cfg; + unsigned int ddrc_ecc_enable; + unsigned int pvr = get_pvr(); + + /* Read SPD parameters with I2C */ CFG_READ_SPD(SPD_EEPROM_ADDRESS, 0, 1, (uchar *) & spd, sizeof (spd)); #ifdef SPD_DEBUG spd_debug(&spd); #endif - if (spd.nrows > 2) { - puts("DDR:Only two chip selects are supported on ADS.\n"); + /* Check the memory type */ + if (spd.mem_type != SPD_MEMTYPE_DDR && spd.mem_type != SPD_MEMTYPE_DDR2) { + debug("DDR: Module mem type is %02X\n", spd.mem_type); + return 0; + } + + /* Check the number of physical bank */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + n_ranks = spd.nrows; + } else { + n_ranks = (spd.nrows & 0x7) + 1; + } + + if (n_ranks > 2) { + printf("DDR: The number of physical bank is %02X\n", n_ranks); return 0; } - if (spd.nrow_addr < 12 - || spd.nrow_addr > 14 - || spd.ncol_addr < 8 - || spd.ncol_addr > 11) { - puts("DDR:Row or Col number unsupported.\n"); + /* Check if the number of row of the module is in the range of DDRC */ + if (spd.nrow_addr < 12 || spd.nrow_addr > 15) { + printf("DDR: Row number is out of range of DDRC, row=%02X\n", + spd.nrow_addr); return 0; } + /* Check if the number of col of the module is in the range of DDRC */ + if (spd.ncol_addr < 8 || spd.ncol_addr > 11) { + printf("DDR: Col number is out of range of DDRC, col=%02X\n", + spd.ncol_addr); + return 0; + } + +#ifdef CFG_DDRCDR_VALUE + /* + * Adjust DDR II IO voltage biasing. It just makes it work. + */ + if(spd.mem_type == SPD_MEMTYPE_DDR2) { + immap->sysconf.ddrcdr = CFG_DDRCDR_VALUE; + } +#endif + + /* + * ODT configuration recommendation from DDR Controller Chapter. + */ + odt_rd_cfg = 0; /* Never assert ODT */ + odt_wr_cfg = 0; /* Never assert ODT */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + odt_wr_cfg = 1; /* Assert ODT on writes to CSn */ + } + + /* Setup DDR chip select register */ +#ifdef CFG_83XX_DDR_USES_CS0 + ddr->csbnds[0].csbnds = (banksize(spd.row_dens) >> 24) - 1; + ddr->cs_config[0] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) + | (spd.nrow_addr - 12) << 8 + | (spd.ncol_addr - 8) ); + debug("\n"); + debug("cs0_bnds = 0x%08x\n",ddr->csbnds[0].csbnds); + debug("cs0_config = 0x%08x\n",ddr->cs_config[0]); + + if (n_ranks == 2) { + ddr->csbnds[1].csbnds = ( (banksize(spd.row_dens) >> 8) + | ((banksize(spd.row_dens) >> 23) - 1) ); + ddr->cs_config[1] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) + | (spd.nrow_addr-12) << 8 + | (spd.ncol_addr-8) ); + debug("cs1_bnds = 0x%08x\n",ddr->csbnds[1].csbnds); + debug("cs1_config = 0x%08x\n",ddr->cs_config[1]); + } + +#else ddr->csbnds[2].csbnds = (banksize(spd.row_dens) >> 24) - 1; ddr->cs_config[2] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr - 12) << 8 | (spd.ncol_addr - 8) ); debug("\n"); debug("cs2_bnds = 0x%08x\n",ddr->csbnds[2].csbnds); debug("cs2_config = 0x%08x\n",ddr->cs_config[2]); - if (spd.nrows == 2) { + if (n_ranks == 2) { ddr->csbnds[3].csbnds = ( (banksize(spd.row_dens) >> 8) | ((banksize(spd.row_dens) >> 23) - 1) ); ddr->cs_config[3] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr-12) << 8 | (spd.ncol_addr-8) ); debug("cs3_bnds = 0x%08x\n",ddr->csbnds[3].csbnds); debug("cs3_config = 0x%08x\n",ddr->cs_config[3]); } - - if (spd.mem_type != 0x07) { - puts("No DDR module found!\n"); - return 0; - } +#endif /* * Figure out memory size in Megabytes. */ - memsize = spd.nrows * banksize(spd.row_dens) / 0x100000; + memsize = n_ranks * banksize(spd.row_dens) / 0x100000; /* * First supported LAW size is 16M, at LAWAR_SIZE_16M == 23. @@ -172,218 +276,522 @@ long int spd_sdram() debug("DDR:ar=0x%08x\n", ecm->ar); /* - * find the largest CAS + * Find the largest CAS by locating the highest 1 bit + * in the spd.cas_lat field. Translate it to a DDR + * controller field value: + * + * CAS Lat DDR I DDR II Ctrl + * Clocks SPD Bit SPD Bit Value + * ------- ------- ------- ----- + * 1.0 0 0001 + * 1.5 1 0010 + * 2.0 2 2 0011 + * 2.5 3 0100 + * 3.0 4 3 0101 + * 3.5 5 0110 + * 4.0 6 4 0111 + * 4.5 1000 + * 5.0 5 1001 */ - if(spd.cas_lat & 0x40) { - caslat = 7; - } else if (spd.cas_lat & 0x20) { - caslat = 6; - } else if (spd.cas_lat & 0x10) { - caslat = 5; - } else if (spd.cas_lat & 0x08) { - caslat = 4; - } else if (spd.cas_lat & 0x04) { - caslat = 3; - } else if (spd.cas_lat & 0x02) { - caslat = 2; - } else if (spd.cas_lat & 0x01) { - caslat = 1; - } else { - puts("DDR:no valid CAS Latency information.\n"); + caslat = __ilog2(spd.cas_lat); + if ((spd.mem_type == SPD_MEMTYPE_DDR) + && (caslat > 6)) { + printf("DDR I: Invalid SPD CAS Latency: 0x%x.\n", spd.cas_lat); return 0; + } else if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (caslat < 2 || caslat > 5)) { + printf("DDR II: Invalid SPD CAS Latency: 0x%x.\n", + spd.cas_lat); + return 0; + } + debug("DDR: caslat SPD bit is %d\n", caslat); + + max_bus_clk = 1000 *10 / (((spd.clk_cycle & 0xF0) >> 4) * 10 + + (spd.clk_cycle & 0x0f)); + max_data_rate = max_bus_clk * 2; + + debug("DDR:Module maximum data rate is: %dMhz\n", max_data_rate); + + ddrc_clk = gd->ddr_clk / 1000000; + effective_data_rate = 0; + + if (max_data_rate >= 390 && max_data_rate < 460) { /* it is DDR 400 */ + if (ddrc_clk <= 460 && ddrc_clk > 350) { + /* DDR controller clk at 350~460 */ + effective_data_rate = 400; /* 5ns */ + caslat = caslat; + } else if (ddrc_clk <= 350 && ddrc_clk > 280) { + /* DDR controller clk at 280~350 */ + effective_data_rate = 333; /* 6ns */ + if (spd.clk_cycle2 == 0x60) + caslat = caslat - 1; + else + caslat = caslat; + } else if (ddrc_clk <= 280 && ddrc_clk > 230) { + /* DDR controller clk at 230~280 */ + effective_data_rate = 266; /* 7.5ns */ + if (spd.clk_cycle3 == 0x75) + caslat = caslat - 2; + else if (spd.clk_cycle2 == 0x75) + caslat = caslat - 1; + else + caslat = caslat; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + if (spd.clk_cycle3 == 0xa0) + caslat = caslat - 2; + else if (spd.clk_cycle2 == 0xa0) + caslat = caslat - 1; + else + caslat = caslat; + } + } else if (max_data_rate >= 323) { /* it is DDR 333 */ + if (ddrc_clk <= 350 && ddrc_clk > 280) { + /* DDR controller clk at 280~350 */ + effective_data_rate = 333; /* 6ns */ + caslat = caslat; + } else if (ddrc_clk <= 280 && ddrc_clk > 230) { + /* DDR controller clk at 230~280 */ + effective_data_rate = 266; /* 7.5ns */ + if (spd.clk_cycle2 == 0x75) + caslat = caslat - 1; + else + caslat = caslat; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + if (spd.clk_cycle3 == 0xa0) + caslat = caslat - 2; + else if (spd.clk_cycle2 == 0xa0) + caslat = caslat - 1; + else + caslat = caslat; + } + } else if (max_data_rate >= 256) { /* it is DDR 266 */ + if (ddrc_clk <= 350 && ddrc_clk > 280) { + /* DDR controller clk at 280~350 */ + printf("DDR: DDR controller freq is more than " + "max data rate of the module\n"); + return 0; + } else if (ddrc_clk <= 280 && ddrc_clk > 230) { + /* DDR controller clk at 230~280 */ + effective_data_rate = 266; /* 7.5ns */ + caslat = caslat; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + if (spd.clk_cycle2 == 0xa0) + caslat = caslat - 1; + } + } else if (max_data_rate >= 190) { /* it is DDR 200 */ + if (ddrc_clk <= 350 && ddrc_clk > 230) { + /* DDR controller clk at 230~350 */ + printf("DDR: DDR controller freq is more than " + "max data rate of the module\n"); + return 0; + } else if (ddrc_clk <= 230 && ddrc_clk > 90) { + /* DDR controller clk at 90~230 */ + effective_data_rate = 200; /* 10ns */ + caslat = caslat; + } } - tmp = 20000 / (((spd.clk_cycle & 0xF0) >> 4) * 10 - + (spd.clk_cycle & 0x0f)); - debug("DDR:Module maximum data rate is: %dMhz\n", tmp); - - tmp1 = get_bus_freq(0) / 1000000; - if (tmp1 < 230 && tmp1 >= 90 && tmp >= 230) { - /* 90~230 range, treated as DDR 200 */ - if (spd.clk_cycle3 == 0xa0) - caslat -= 2; - else if(spd.clk_cycle2 == 0xa0) - caslat--; - } else if (tmp1 < 280 && tmp1 >= 230 && tmp >= 280) { - /* 230-280 range, treated as DDR 266 */ - if (spd.clk_cycle3 == 0x75) - caslat -= 2; - else if (spd.clk_cycle2 == 0x75) - caslat--; - } else if (tmp1 < 350 && tmp1 >= 280 && tmp >= 350) { - /* 280~350 range, treated as DDR 333 */ - if (spd.clk_cycle3 == 0x60) - caslat -= 2; - else if (spd.clk_cycle2 == 0x60) - caslat--; - } else if (tmp1 < 90 || tmp1 >= 350) { - /* DDR rate out-of-range */ - puts("DDR:platform frequency is not fit for DDR rate\n"); - return 0; + debug("DDR:Effective data rate is: %dMhz\n", effective_data_rate); + debug("DDR:The MSB 1 of CAS Latency is: %d\n", caslat); + + /* + * Errata DDR6 work around: input enable 2 cycles earlier. + * including MPC834x Rev1.0/1.1 and MPC8360 Rev1.1/1.2. + */ + if(PVR_MAJ(pvr) <= 1 && spd.mem_type == SPD_MEMTYPE_DDR){ + if (caslat == 2) + ddr->debug_reg = 0x201c0000; /* CL=2 */ + else if (caslat == 3) + ddr->debug_reg = 0x202c0000; /* CL=2.5 */ + else if (caslat == 4) + ddr->debug_reg = 0x202c0000; /* CL=3.0 */ + + __asm__ __volatile__ ("sync"); + + debug("Errata DDR6 (debug_reg=0x%08x)\n", ddr->debug_reg); } /* - * note: caslat must also be programmed into ddr->sdram_mode - * register. - * - * note: WRREC(Twr) and WRTORD(Twtr) are not in SPD, - * use conservative value here. + * Convert caslat clocks to DDR controller value. + * Force caslat_ctrl to be DDR Controller field-sized. */ - trfc = spd.trfc * 1000; /* up to ps */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + caslat_ctrl = (caslat + 1) & 0x07; + } else { + caslat_ctrl = (2 * caslat - 1) & 0x0f; + } + + debug("DDR: effective data rate is %d MHz\n", effective_data_rate); + debug("DDR: caslat SPD bit is %d, controller field is 0x%x\n", + caslat, caslat_ctrl); + + /* + * Timing Config 0. + * Avoid writing for DDR I. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + unsigned char taxpd_clk = 8; /* By the book. */ + unsigned char tmrd_clk = 2; /* By the book. */ + unsigned char act_pd_exit = 2; /* Empirical? */ + unsigned char pre_pd_exit = 6; /* Empirical? */ + + ddr->timing_cfg_0 = (0 + | ((act_pd_exit & 0x7) << 20) /* ACT_PD_EXIT */ + | ((pre_pd_exit & 0x7) << 16) /* PRE_PD_EXIT */ + | ((taxpd_clk & 0xf) << 8) /* ODT_PD_EXIT */ + | ((tmrd_clk & 0xf) << 0) /* MRS_CYC */ + ); + debug("DDR: timing_cfg_0 = 0x%08x\n", ddr->timing_cfg_0); + } + + /* + * For DDR I, WRREC(Twr) and WRTORD(Twtr) are not in SPD, + * use conservative value. + * For DDR II, they are bytes 36 and 37, in quarter nanos. + */ + + if (spd.mem_type == SPD_MEMTYPE_DDR) { + twr_clk = 3; /* Clocks */ + twtr_clk = 1; /* Clocks */ + } else { + twr_clk = picos_to_clk(spd.twr * 250); + twtr_clk = picos_to_clk(spd.twtr * 250); + } + + /* + * Calculate Trfc, in picos. + * DDR I: Byte 42 straight up in ns. + * DDR II: Byte 40 and 42 swizzled some, in ns. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + trfc = spd.trfc * 1000; /* up to ps */ + } else { + unsigned int byte40_table_ps[8] = { + 0, + 250, + 330, + 500, + 660, + 750, + 0, + 0 + }; + + trfc = (((spd.trctrfc_ext & 0x1) * 256) + spd.trfc) * 1000 + + byte40_table_ps[(spd.trctrfc_ext >> 1) & 0x7]; + } trfc_clk = picos_to_clk(trfc); + + /* + * Trcd, Byte 29, from quarter nanos to ps and clocks. + */ + trcd_clk = picos_to_clk(spd.trcd * 250) & 0x7; + + /* + * Convert trfc_clk to DDR controller fields. DDR I should + * fit in the REFREC field (16-19) of TIMING_CFG_1, but the + * 83xx controller has an extended REFREC field of three bits. + * The controller automatically adds 8 clocks to this value, + * so preadjust it down 8 first before splitting it up. + */ trfc_low = (trfc_clk - 8) & 0xf; + trfc_high = ((trfc_clk - 8) >> 4) & 0x3; ddr->timing_cfg_1 = - (((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | - ((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | - ((picos_to_clk(spd.trcd * 250) & 0x07) << 20 ) | - ((caslat & 0x07) << 16 ) | - (trfc_low << 12 ) | - ( 0x300 ) | - ((picos_to_clk(spd.trrd * 250) & 0x07) << 4) | 1); + (((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | /* PRETOACT */ + ((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | /* ACTTOPRE */ + (trcd_clk << 20 ) | /* ACTTORW */ + (caslat_ctrl << 16 ) | /* CASLAT */ + (trfc_low << 12 ) | /* REFEC */ + ((twr_clk & 0x07) << 8) | /* WRRREC */ + ((picos_to_clk(spd.trrd * 250) & 0x07) << 4) | /* ACTTOACT */ + ((twtr_clk & 0x07) << 0) /* WRTORD */ + ); - ddr->timing_cfg_2 = 0x00000800; + /* + * Additive Latency + * For DDR I, 0. + * For DDR II, with ODT enabled, use "a value" less than ACTTORW, + * which comes from Trcd, and also note that: + * add_lat + caslat must be >= 4 + */ + add_lat = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (odt_wr_cfg || odt_rd_cfg) + && (caslat < 4)) { + add_lat = trcd_clk - 1; + if ((add_lat + caslat) < 4) { + add_lat = 0; + } + } + + /* + * Write Data Delay + * Historically 0x2 == 4/8 clock delay. + * Empirically, 0x3 == 6/8 clock delay is suggested for DDR I 266. + */ + wr_data_delay = 2; + + /* + * Write Latency + * Read to Precharge + * Minimum CKE Pulse Width. + * Four Activate Window + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + /* + * This is a lie. It should really be 1, but if it is + * set to 1, bits overlap into the old controller's + * otherwise unused ACSM field. If we leave it 0, then + * the HW will magically treat it as 1 for DDR 1. Oh Yea. + */ + wr_lat = 0; + + trtp_clk = 2; /* By the book. */ + cke_min_clk = 1; /* By the book. */ + four_act = 1; /* By the book. */ + + } else { + wr_lat = caslat - 1; + + /* Convert SPD value from quarter nanos to picos. */ + trtp_clk = picos_to_clk(spd.trtp * 250); + + cke_min_clk = 3; /* By the book. */ + four_act = picos_to_clk(37500); /* By the book. 1k pages? */ + } + + /* + * Empirically set ~MCAS-to-preamble override for DDR 2. + * Your milage will vary. + */ + cpo = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + if (effective_data_rate == 266 || effective_data_rate == 333) { + cpo = 0x7; /* READ_LAT + 5/4 */ + } else if (effective_data_rate == 400) { + cpo = 0x9; /* READ_LAT + 7/4 */ + } else { + /* Automatic calibration */ + cpo = 0x1f; + } + } + + ddr->timing_cfg_2 = (0 + | ((add_lat & 0x7) << 28) /* ADD_LAT */ + | ((cpo & 0x1f) << 23) /* CPO */ + | ((wr_lat & 0x7) << 19) /* WR_LAT */ + | ((trtp_clk & 0x7) << 13) /* RD_TO_PRE */ + | ((wr_data_delay & 0x7) << 10) /* WR_DATA_DELAY */ + | ((cke_min_clk & 0x7) << 6) /* CKE_PLS */ + | ((four_act & 0x1f) << 0) /* FOUR_ACT */ + ); debug("DDR:timing_cfg_1=0x%08x\n", ddr->timing_cfg_1); debug("DDR:timing_cfg_2=0x%08x\n", ddr->timing_cfg_2); - /* - * Only DDR I is supported - * DDR I and II have different mode-register-set definition + /* Check DIMM data bus width */ + if (spd.dataw_lsb == 0x20) { + if (spd.mem_type == SPD_MEMTYPE_DDR) + burstlen = 0x03; /* 32 bit data bus, burst len is 8 */ + else + burstlen = 0x02; /* 32 bit data bus, burst len is 4 */ + debug("\n DDR DIMM: data bus width is 32 bit"); + } else { + burstlen = 0x02; /* Others act as 64 bit bus, burst len is 4 */ + debug("\n DDR DIMM: data bus width is 64 bit"); + } + + /* Is this an ECC DDR chip? */ + if (spd.config == 0x02) + debug(" with ECC\n"); + else + debug(" without ECC\n"); + + /* Burst length is always 4 for 64 bit data bus, 8 for 32 bit data bus, + Burst type is sequential */ - switch(caslat) { - case 2: - tmp = 0x50; /* 1.5 */ - break; - case 3: - tmp = 0x20; /* 2.0 */ - break; - case 4: - tmp = 0x60; /* 2.5 */ - break; - case 5: - tmp = 0x30; /* 3.0 */ - break; - default: - puts("DDR:only CAS Latency 1.5, 2.0, 2.5, 3.0 is supported.\n"); - return 0; + if (spd.mem_type == SPD_MEMTYPE_DDR) { + switch (caslat) { + case 1: + ddr->sdram_mode = 0x50 | burstlen; /* CL=1.5 */ + break; + case 2: + ddr->sdram_mode = 0x20 | burstlen; /* CL=2.0 */ + break; + case 3: + ddr->sdram_mode = 0x60 | burstlen; /* CL=2.5 */ + break; + case 4: + ddr->sdram_mode = 0x30 | burstlen; /* CL=3.0 */ + break; + default: + printf("DDR:only CL 1.5, 2.0, 2.5, 3.0 is supported\n"); + return 0; + } + } else { + mode_odt_enable = 0x0; /* Default disabled */ + if (odt_wr_cfg || odt_rd_cfg) { + /* + * Bits 6 and 2 in Extended MRS(1) + * Bit 2 == 0x04 == 75 Ohm, with 2 DIMM modules. + * Bit 6 == 0x40 == 150 Ohm, with 1 DIMM module. + */ + mode_odt_enable = 0x40; /* 150 Ohm */ + } + + ddr->sdram_mode = + (0 + | (1 << (16 + 10)) /* DQS Differential disable */ + | (add_lat << (16 + 3)) /* Additive Latency in EMRS1 */ + | (mode_odt_enable << 16) /* ODT Enable in EMRS1 */ + | ((twr_clk - 1) << 9) /* Write Recovery Autopre */ + | (caslat << 4) /* caslat */ + | (burstlen << 0) /* Burst length */ + ); } -#if defined (CONFIG_DDR_32BIT) - /* set burst length to 8 for 32-bit data path */ - tmp |= 0x03; -#else - /* set burst length to 4 - default for 64-bit data path */ - tmp |= 0x02; -#endif - ddr->sdram_mode = tmp; debug("DDR:sdram_mode=0x%08x\n", ddr->sdram_mode); - switch(spd.refresh) { - case 0x00: - case 0x80: - tmp = picos_to_clk(15625000); - break; - case 0x01: - case 0x81: - tmp = picos_to_clk(3900000); - break; - case 0x02: - case 0x82: - tmp = picos_to_clk(7800000); - break; - case 0x03: - case 0x83: - tmp = picos_to_clk(31300000); - break; - case 0x04: - case 0x84: - tmp = picos_to_clk(62500000); - break; - case 0x05: - case 0x85: - tmp = picos_to_clk(125000000); - break; - default: - tmp = 0x512; - break; + /* + * Clear EMRS2 and EMRS3. + */ + ddr->sdram_mode2 = 0; + debug("DDR: sdram_mode2 = 0x%08x\n", ddr->sdram_mode2); + + switch (spd.refresh) { + case 0x00: + case 0x80: + refresh_clk = picos_to_clk(15625000); + break; + case 0x01: + case 0x81: + refresh_clk = picos_to_clk(3900000); + break; + case 0x02: + case 0x82: + refresh_clk = picos_to_clk(7800000); + break; + case 0x03: + case 0x83: + refresh_clk = picos_to_clk(31300000); + break; + case 0x04: + case 0x84: + refresh_clk = picos_to_clk(62500000); + break; + case 0x05: + case 0x85: + refresh_clk = picos_to_clk(125000000); + break; + default: + refresh_clk = 0x512; + break; } /* * Set BSTOPRE to 0x100 for page mode * If auto-charge is used, set BSTOPRE = 0 */ - ddr->sdram_interval = ((tmp & 0x3fff) << 16) | 0x100; + ddr->sdram_interval = ((refresh_clk & 0x3fff) << 16) | 0x100; debug("DDR:sdram_interval=0x%08x\n", ddr->sdram_interval); /* - * Is this an ECC DDR chip? + * SDRAM Cfg 2 */ -#if defined(CONFIG_DDR_ECC) - if (spd.config == 0x02) { - /* disable error detection */ - ddr->err_disable = ~ECC_ERROR_ENABLE; - - /* set single bit error threshold to maximum value, - * reset counter to zero */ - ddr->err_sbe = (255 << ECC_ERROR_MAN_SBET_SHIFT) | - (0 << ECC_ERROR_MAN_SBEC_SHIFT); + odt_cfg = 0; + if (odt_rd_cfg | odt_wr_cfg) { + odt_cfg = 0x2; /* ODT to IOs during reads */ } - debug("DDR:err_disable=0x%08x\n", ddr->err_disable); - debug("DDR:err_sbe=0x%08x\n", ddr->err_sbe); + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + ddr->sdram_cfg2 = (0 + | (0 << 26) /* True DQS */ + | (odt_cfg << 21) /* ODT only read */ + | (1 << 12) /* 1 refresh at a time */ + ); + + debug("DDR: sdram_cfg2 = 0x%08x\n", ddr->sdram_cfg2); + } + +#ifdef CFG_DDR_SDRAM_CLK_CNTL /* Optional platform specific value */ + ddr->sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL; #endif + debug("DDR:sdram_clk_cntl=0x%08x\n", ddr->sdram_clk_cntl); + asm("sync;isync"); - udelay(500); + udelay(600); /* - * SS_EN=1, - * CLK_ADJST = 2-MCK/MCK_B, is lauched 1/2 of one SDRAM - * clock cycle after address/command - */ - /*ddr->sdram_clk_cntl = 0x82000000;*/ - ddr->sdram_clk_cntl = (DDR_SDRAM_CLK_CNTL_SS_EN|DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05); - - /* - * Figure out the settings for the sdram_cfg register. Build up - * the entire register in 'tmp' before writing since the write into + * Figure out the settings for the sdram_cfg register. Build up + * the value in 'sdram_cfg' before writing since the write into * the register will actually enable the memory controller, and all * settings must be done before enabling. * * sdram_cfg[0] = 1 (ddr sdram logic enable) * sdram_cfg[1] = 1 (self-refresh-enable) - * sdram_cfg[6:7] = 2 (SDRAM type = DDR SDRAM) - */ - tmp = 0xc2000000; - -#if defined (CONFIG_DDR_32BIT) - /* in 32-Bit mode burst len is 8 beats */ - tmp |= (SDRAM_CFG_32_BE | SDRAM_CFG_8_BE); -#endif - /* - * sdram_cfg[3] = RD_EN - registered DIMM enable - * A value of 0x26 indicates micron registered DIMMS (micron.com) + * sdram_cfg[5:7] = (SDRAM type = DDR SDRAM) + * 010 DDR 1 SDRAM + * 011 DDR 2 SDRAM + * sdram_cfg[12] = 0 (32_BE =0 , 64 bit bus mode) + * sdram_cfg[13] = 0 (8_BE =0, 4-beat bursts) */ - if (spd.mod_attr == 0x26) { - tmp |= 0x10000000; + if (spd.mem_type == SPD_MEMTYPE_DDR) + sdram_type = SDRAM_CFG_SDRAM_TYPE_DDR1; + else + sdram_type = SDRAM_CFG_SDRAM_TYPE_DDR2; + + sdram_cfg = (0 + | SDRAM_CFG_MEM_EN /* DDR enable */ + | SDRAM_CFG_SREN /* Self refresh */ + | sdram_type /* SDRAM type */ + ); + + /* sdram_cfg[3] = RD_EN - registered DIMM enable */ + if (spd.mod_attr & 0x02) + sdram_cfg |= SDRAM_CFG_RD_EN; + + /* The DIMM is 32bit width */ + if (spd.dataw_lsb == 0x20) { + if (spd.mem_type == SPD_MEMTYPE_DDR) + sdram_cfg |= SDRAM_CFG_32_BE | SDRAM_CFG_8_BE; + if (spd.mem_type == SPD_MEMTYPE_DDR2) + sdram_cfg |= SDRAM_CFG_32_BE; } + ddrc_ecc_enable = 0; + #if defined(CONFIG_DDR_ECC) - /* - * If the user wanted ECC (enabled via sdram_cfg[2]) - */ + /* Enable ECC with sdram_cfg[2] */ if (spd.config == 0x02) { - tmp |= SDRAM_CFG_ECC_EN; + sdram_cfg |= 0x20000000; + ddrc_ecc_enable = 1; + /* disable error detection */ + ddr->err_disable = ~ECC_ERROR_ENABLE; + /* set single bit error threshold to maximum value, + * reset counter to zero */ + ddr->err_sbe = (255 << ECC_ERROR_MAN_SBET_SHIFT) | + (0 << ECC_ERROR_MAN_SBEC_SHIFT); } + + debug("DDR:err_disable=0x%08x\n", ddr->err_disable); + debug("DDR:err_sbe=0x%08x\n", ddr->err_sbe); #endif + debug(" DDRC ECC mode: %s\n", ddrc_ecc_enable ? "ON":"OFF"); #if defined(CONFIG_DDR_2T_TIMING) /* * Enable 2T timing by setting sdram_cfg[16]. */ - tmp |= SDRAM_CFG_2T_EN; + sdram_cfg |= SDRAM_CFG_2T_EN; #endif - - ddr->sdram_cfg = tmp; + /* Enable controller, and GO! */ + ddr->sdram_cfg = sdram_cfg; asm("sync;isync"); udelay(500); @@ -392,8 +800,7 @@ long int spd_sdram() } #endif /* CONFIG_SPD_EEPROM */ - -#if defined(CONFIG_DDR_ECC) +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC) /* * Use timebase counter, get_timer() is not availabe * at this point of initialization yet. @@ -429,74 +836,48 @@ static __inline__ unsigned long get_tbms (void) /* #define CONFIG_DDR_ECC_INIT_VIA_DMA */ void ddr_enable_ecc(unsigned int dram_size) { - uint *p; - volatile immap_t *immap = (immap_t *)CFG_IMMRBAR; - volatile ddr8349_t *ddr = &immap->ddr; + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile ddr83xx_t *ddr= &immap->ddr; unsigned long t_start, t_end; + register u64 *p; + register uint size; + unsigned int pattern[2]; #if defined(CONFIG_DDR_ECC_INIT_VIA_DMA) uint i; #endif - - debug("Initialize a Cachline in DRAM\n"); icache_enable(); - -#if defined(CONFIG_DDR_ECC_INIT_VIA_DMA) - /* Initialise DMA for direct Transfers */ - dma_init(); -#endif - t_start = get_tbms(); + pattern[0] = 0xdeadbeef; + pattern[1] = 0xdeadbeef; #if !defined(CONFIG_DDR_ECC_INIT_VIA_DMA) - debug("DDR init: Cache flush method\n"); - for (p = 0; p < (uint *)(dram_size); p++) { - if (((unsigned int)p & 0x1f) == 0) { - ppcDcbz((unsigned long) p); - } - - /* write pattern to cache and flush */ - *p = (unsigned int)0xdeadbeef; - - if (((unsigned int)p & 0x1c) == 0x1c) { - ppcDcbf((unsigned long) p); - } + debug("ddr init: CPU FP write method\n"); + size = dram_size; + for (p = 0; p < (u64*)(size); p++) { + ppcDWstore((u32*)p, pattern); } + __asm__ __volatile__ ("sync"); #else - printf("DDR init: DMA method\n"); - for (p = 0; p < (uint *)(8 * 1024); p++) { - /* zero one data cache line */ - if (((unsigned int)p & 0x1f) == 0) { - ppcDcbz((unsigned long)p); - } - - /* write pattern to it and flush */ - *p = (unsigned int)0xdeadbeef; - - if (((unsigned int)p & 0x1c) == 0x1c) { - ppcDcbf((unsigned long)p); - } + debug("ddr init: DMA method\n"); + size = 0x2000; + for (p = 0; p < (u64*)(size); p++) { + ppcDWstore((u32*)p, pattern); } + __asm__ __volatile__ ("sync"); - /* 8K */ - dma_xfer((uint *)0x2000, 0x2000, (uint *)0); - /* 16K */ - dma_xfer((uint *)0x4000, 0x4000, (uint *)0); - /* 32K */ - dma_xfer((uint *)0x8000, 0x8000, (uint *)0); - /* 64K */ - dma_xfer((uint *)0x10000, 0x10000, (uint *)0); - /* 128k */ - dma_xfer((uint *)0x20000, 0x20000, (uint *)0); - /* 256k */ - dma_xfer((uint *)0x40000, 0x40000, (uint *)0); - /* 512k */ - dma_xfer((uint *)0x80000, 0x80000, (uint *)0); - /* 1M */ - dma_xfer((uint *)0x100000, 0x100000, (uint *)0); - /* 2M */ - dma_xfer((uint *)0x200000, 0x200000, (uint *)0); - /* 4M */ - dma_xfer((uint *)0x400000, 0x400000, (uint *)0); + /* Initialise DMA for direct transfer */ + dma_init(); + /* Start DMA to transfer */ + dma_xfer((uint *)0x2000, 0x2000, (uint *)0); /* 8K */ + dma_xfer((uint *)0x4000, 0x4000, (uint *)0); /* 16K */ + dma_xfer((uint *)0x8000, 0x8000, (uint *)0); /* 32K */ + dma_xfer((uint *)0x10000, 0x10000, (uint *)0); /* 64K */ + dma_xfer((uint *)0x20000, 0x20000, (uint *)0); /* 128K */ + dma_xfer((uint *)0x40000, 0x40000, (uint *)0); /* 256K */ + dma_xfer((uint *)0x80000, 0x80000, (uint *)0); /* 512K */ + dma_xfer((uint *)0x100000, 0x100000, (uint *)0); /* 1M */ + dma_xfer((uint *)0x200000, 0x200000, (uint *)0); /* 2M */ + dma_xfer((uint *)0x400000, 0x400000, (uint *)0); /* 4M */ for (i = 1; i < dram_size / 0x800000; i++) { dma_xfer((uint *)(0x800000*i), 0x800000, (uint *)0); diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c index ad6b3f669fb..cba57fadb99 100644 --- a/cpu/mpc83xx/speed.c +++ b/cpu/mpc83xx/speed.c @@ -2,7 +2,7 @@ * (C) Copyright 2000-2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * - * Copyright 2004 Freescale Semiconductor, Inc. + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -21,15 +21,11 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * - * Change log: - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) */ #include <common.h> #include <mpc83xx.h> +#include <command.h> #include <asm/processor.h> DECLARE_GLOBAL_DATA_PTR; @@ -53,38 +49,38 @@ typedef enum { typedef struct { mult_t core_csb_ratio; - mult_t vco_divider; + mult_t vco_divider; } corecnf_t; corecnf_t corecnf_tab[] = { - { _byp, _byp}, /* 0x00 */ - { _byp, _byp}, /* 0x01 */ - { _byp, _byp}, /* 0x02 */ - { _byp, _byp}, /* 0x03 */ - { _byp, _byp}, /* 0x04 */ - { _byp, _byp}, /* 0x05 */ - { _byp, _byp}, /* 0x06 */ - { _byp, _byp}, /* 0x07 */ - { _1x, _x2}, /* 0x08 */ - { _1x, _x4}, /* 0x09 */ - { _1x, _x8}, /* 0x0A */ - { _1x, _x8}, /* 0x0B */ - {_1_5x, _x2}, /* 0x0C */ - {_1_5x, _x4}, /* 0x0D */ - {_1_5x, _x8}, /* 0x0E */ - {_1_5x, _x8}, /* 0x0F */ - { _2x, _x2}, /* 0x10 */ - { _2x, _x4}, /* 0x11 */ - { _2x, _x8}, /* 0x12 */ - { _2x, _x8}, /* 0x13 */ - {_2_5x, _x2}, /* 0x14 */ - {_2_5x, _x4}, /* 0x15 */ - {_2_5x, _x8}, /* 0x16 */ - {_2_5x, _x8}, /* 0x17 */ - { _3x, _x2}, /* 0x18 */ - { _3x, _x4}, /* 0x19 */ - { _3x, _x8}, /* 0x1A */ - { _3x, _x8}, /* 0x1B */ + {_byp, _byp}, /* 0x00 */ + {_byp, _byp}, /* 0x01 */ + {_byp, _byp}, /* 0x02 */ + {_byp, _byp}, /* 0x03 */ + {_byp, _byp}, /* 0x04 */ + {_byp, _byp}, /* 0x05 */ + {_byp, _byp}, /* 0x06 */ + {_byp, _byp}, /* 0x07 */ + {_1x, _x2}, /* 0x08 */ + {_1x, _x4}, /* 0x09 */ + {_1x, _x8}, /* 0x0A */ + {_1x, _x8}, /* 0x0B */ + {_1_5x, _x2}, /* 0x0C */ + {_1_5x, _x4}, /* 0x0D */ + {_1_5x, _x8}, /* 0x0E */ + {_1_5x, _x8}, /* 0x0F */ + {_2x, _x2}, /* 0x10 */ + {_2x, _x4}, /* 0x11 */ + {_2x, _x8}, /* 0x12 */ + {_2x, _x8}, /* 0x13 */ + {_2_5x, _x2}, /* 0x14 */ + {_2_5x, _x4}, /* 0x15 */ + {_2_5x, _x8}, /* 0x16 */ + {_2_5x, _x8}, /* 0x17 */ + {_3x, _x2}, /* 0x18 */ + {_3x, _x4}, /* 0x19 */ + {_3x, _x8}, /* 0x1A */ + {_3x, _x8}, /* 0x1B */ }; /* ----------------------------------------------------------------- */ @@ -92,91 +88,70 @@ corecnf_t corecnf_tab[] = { /* * */ -int get_clocks (void) +int get_clocks(void) { - volatile immap_t *im = (immap_t *)CFG_IMMRBAR; + volatile immap_t *im = (immap_t *) CFG_IMMR; u32 pci_sync_in; - u8 spmf; - u8 clkin_div; + u8 spmf; + u8 clkin_div; u32 sccr; u32 corecnf_tab_index; - u8 corepll; + u8 corepll; u32 lcrr; u32 csb_clk; +#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X) u32 tsec1_clk; u32 tsec2_clk; - u32 core_clk; - u32 usbmph_clk; u32 usbdr_clk; - u32 i2c_clk; +#endif +#ifdef CONFIG_MPC834X + u32 usbmph_clk; +#endif + u32 core_clk; + u32 i2c1_clk; +#if !defined(CONFIG_MPC832X) + u32 i2c2_clk; +#endif u32 enc_clk; u32 lbiu_clk; u32 lclk_clk; u32 ddr_clk; - - if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im) +#if defined(CONFIG_MPC8360) + u32 ddr_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) + u32 qepmf; + u32 qepdf; + u32 qe_clk; + u32 brg_clk; +#endif + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im) return -1; -#ifndef CFG_HRCW_HIGH -# error "CFG_HRCW_HIGH must be defined in board config file" -#endif /* CFG_HCWD_HIGH */ - -#if (CFG_HRCW_HIGH & HRCWH_PCI_HOST) - -# ifndef CONFIG_83XX_CLKIN -# error "In PCI Host Mode, CONFIG_83XX_CLKIN must be defined in board config file" -# endif /* CONFIG_83XX_CLKIN */ -# ifdef CONFIG_83XX_PCICLK -# warning "In PCI Host Mode, CONFIG_83XX_PCICLK in board config file is igonred" -# endif /* CONFIG_83XX_PCICLK */ - - /* PCI Host Mode */ - if (!(im->reset.rcwh & RCWH_PCIHOST)) { - /* though RCWH_PCIHOST is defined in CFG_HRCW_HIGH - * the im->reset.rcwhr PCI Host Mode is disabled - * FIXME: findout if there is a way to issue some warning */ - return -2; - } - if (im->clk.spmr & SPMR_CKID) { - /* PCI Clock is half CONFIG_83XX_CLKIN */ - pci_sync_in = CONFIG_83XX_CLKIN / 2; - } - else { - pci_sync_in = CONFIG_83XX_CLKIN; - } - -#else /* (CFG_HRCW_HIGH & HRCWH_PCI_HOST) */ - -# ifdef CONFIG_83XX_CLKIN -# warning "In PCI Agent Mode, CONFIG_83XX_CLKIN in board config file is igonred" -# endif /* CONFIG_83XX_CLKIN */ -# ifndef CONFIG_83XX_PCICLK -# error "In PCI Agent Mode, CONFIG_83XX_PCICLK must be defined in board config file" -# endif /* CONFIG_83XX_PCICLK */ - - /* PCI Agent Mode */ - if (im->reset.rcwh & RCWH_PCIHOST) { - /* though RCWH_PCIHOST is not defined in CFG_HRCW_HIGH - * the im->reset.rcwhr PCI Host Mode is enabled */ - return -3; - } - pci_sync_in = CONFIG_83XX_PCICLK; - -#endif /* (CFG_HRCW_HIGH | RCWH_PCIHOST) */ - - /* we have up to date pci_sync_in */ - spmf = ((im->reset.rcwl & RCWL_SPMF) >> RCWL_SPMF_SHIFT); clkin_div = ((im->clk.spmr & SPMR_CKID) >> SPMR_CKID_SHIFT); - if ((im->reset.rcwl & RCWL_LBIUCM) || (im->reset.rcwl & RCWL_DDRCM)) { - csb_clk = (pci_sync_in * spmf * (1 + clkin_div)) / 2; - } - else { - csb_clk = pci_sync_in * spmf * (1 + clkin_div); + if (im->reset.rcwh & HRCWH_PCI_HOST) { +#if defined(CONFIG_83XX_CLKIN) + pci_sync_in = CONFIG_83XX_CLKIN / (1 + clkin_div); +#else + pci_sync_in = 0xDEADBEEF; +#endif + } else { +#if defined(CONFIG_83XX_PCICLK) + pci_sync_in = CONFIG_83XX_PCICLK; +#else + pci_sync_in = 0xDEADBEEF; +#endif } + spmf = ((im->reset.rcwl & HRCWL_SPMF) >> HRCWL_SPMF_SHIFT); + csb_clk = pci_sync_in * (1 + clkin_div) * spmf; + sccr = im->clk.sccr; + +#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X) switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) { case 0: tsec1_clk = 0; @@ -195,43 +170,46 @@ int get_clocks (void) return -4; } - switch ((sccr & SCCR_TSEC2CM) >> SCCR_TSEC2CM_SHIFT) { + switch ((sccr & SCCR_USBDRCM) >> SCCR_USBDRCM_SHIFT) { case 0: - tsec2_clk = 0; + usbdr_clk = 0; break; case 1: - tsec2_clk = csb_clk; + usbdr_clk = csb_clk; break; case 2: - tsec2_clk = csb_clk / 2; + usbdr_clk = csb_clk / 2; break; case 3: - tsec2_clk = csb_clk / 3; + usbdr_clk = csb_clk / 3; break; default: - /* unkown SCCR_TSEC2CM value */ - return -5; + /* unkown SCCR_USBDRCM value */ + return -8; } - i2c_clk = tsec2_clk; +#endif - switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) { +#if defined(CONFIG_MPC834X) + switch ((sccr & SCCR_TSEC2CM) >> SCCR_TSEC2CM_SHIFT) { case 0: - enc_clk = 0; + tsec2_clk = 0; break; case 1: - enc_clk = csb_clk; + tsec2_clk = csb_clk; break; case 2: - enc_clk = csb_clk / 2; + tsec2_clk = csb_clk / 2; break; case 3: - enc_clk = csb_clk / 3; + tsec2_clk = csb_clk / 3; break; default: - /* unkown SCCR_ENCCM value */ - return -6; + /* unkown SCCR_TSEC2CM value */ + return -5; } + i2c1_clk = tsec2_clk; + switch ((sccr & SCCR_USBMPHCM) >> SCCR_USBMPHCM_SHIFT) { case 0: usbmph_clk = 0; @@ -250,32 +228,49 @@ int get_clocks (void) return -7; } - switch ((sccr & SCCR_USBDRCM) >> SCCR_USBDRCM_SHIFT) { + if (usbmph_clk != 0 && usbdr_clk != 0 && usbmph_clk != usbdr_clk) { + /* if USB MPH clock is not disabled and + * USB DR clock is not disabled then + * USB MPH & USB DR must have the same rate + */ + return -9; + } +#elif defined(CONFIG_MPC831X) + tsec2_clk = tsec1_clk; + + if (!(sccr & SCCR_TSEC1ON)) + tsec1_clk = 0; + if (!(sccr & SCCR_TSEC2ON)) + tsec2_clk = 0; +#endif + +#if !defined(CONFIG_MPC834X) + i2c1_clk = csb_clk; +#endif +#if !defined(CONFIG_MPC832X) + i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */ +#endif + + switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) { case 0: - usbdr_clk = 0; + enc_clk = 0; break; case 1: - usbdr_clk = csb_clk; + enc_clk = csb_clk; break; case 2: - usbdr_clk = csb_clk / 2; + enc_clk = csb_clk / 2; break; case 3: - usbdr_clk = csb_clk / 3; + enc_clk = csb_clk / 3; break; default: - /* unkown SCCR_USBDRCM value */ - return -8; - } - - if (usbmph_clk != 0 - && usbdr_clk != 0 - && usbmph_clk != usbdr_clk ) { - /* if USB MPH clock is not disabled and USB DR clock is not disabled than USB MPH & USB DR must have the same rate */ - return -9; + /* unkown SCCR_ENCCM value */ + return -6; } - lbiu_clk = csb_clk * (1 + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); + lbiu_clk = csb_clk * + (1 + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT; switch (lcrr) { case 2: @@ -288,11 +283,16 @@ int get_clocks (void) return -10; } - ddr_clk = csb_clk * (1 + ((im->reset.rcwl & RCWL_DDRCM) >> RCWL_DDRCM_SHIFT)); + ddr_clk = csb_clk * + (1 + ((im->reset.rcwl & HRCWL_DDRCM) >> HRCWL_DDRCM_SHIFT)); + corepll = (im->reset.rcwl & HRCWL_COREPLL) >> HRCWL_COREPLL_SHIFT; +#if defined(CONFIG_MPC8360) + ddr_sec_clk = csb_clk * (1 + + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); +#endif - corepll = (im->reset.rcwl & RCWL_COREPLL) >> RCWL_COREPLL_SHIFT; corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5); - if (corecnf_tab_index > (sizeof(corecnf_tab)/sizeof(corecnf_t)) ) { + if (corecnf_tab_index > (sizeof(corecnf_tab) / sizeof(corecnf_t))) { /* corecnf_tab_index is too high, possibly worng value */ return -11; } @@ -309,7 +309,7 @@ int get_clocks (void) core_clk = 2 * csb_clk; break; case _2_5x: - core_clk = ( 5 * csb_clk) / 2; + core_clk = (5 * csb_clk) / 2; break; case _3x: core_clk = 3 * csb_clk; @@ -319,46 +319,86 @@ int get_clocks (void) return -12; } - gd->csb_clk = csb_clk ; - gd->tsec1_clk = tsec1_clk ; - gd->tsec2_clk = tsec2_clk ; - gd->core_clk = core_clk ; +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) + qepmf = (im->reset.rcwl & HRCWL_CEPMF) >> HRCWL_CEPMF_SHIFT; + qepdf = (im->reset.rcwl & HRCWL_CEPDF) >> HRCWL_CEPDF_SHIFT; + qe_clk = (pci_sync_in * qepmf) / (1 + qepdf); + brg_clk = qe_clk / 2; +#endif + + gd->csb_clk = csb_clk; +#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X) + gd->tsec1_clk = tsec1_clk; + gd->tsec2_clk = tsec2_clk; + gd->usbdr_clk = usbdr_clk; +#endif +#if defined(CONFIG_MPC834X) gd->usbmph_clk = usbmph_clk; - gd->usbdr_clk = usbdr_clk ; - gd->i2c_clk = i2c_clk ; - gd->enc_clk = enc_clk ; - gd->lbiu_clk = lbiu_clk ; - gd->lclk_clk = lclk_clk ; - gd->ddr_clk = ddr_clk ; - gd->pci_clk = pci_sync_in; - +#endif + gd->core_clk = core_clk; + gd->i2c1_clk = i2c1_clk; +#if !defined(CONFIG_MPC832X) + gd->i2c2_clk = i2c2_clk; +#endif + gd->enc_clk = enc_clk; + gd->lbiu_clk = lbiu_clk; + gd->lclk_clk = lclk_clk; + gd->ddr_clk = ddr_clk; +#if defined(CONFIG_MPC8360) + gd->ddr_sec_clk = ddr_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) + gd->qe_clk = qe_clk; + gd->brg_clk = brg_clk; +#endif + gd->pci_clk = pci_sync_in; gd->cpu_clk = gd->core_clk; - gd->bus_clk = gd->lbiu_clk; + gd->bus_clk = gd->csb_clk; return 0; + } /******************************************** * get_bus_freq * return system bus freq in Hz *********************************************/ -ulong get_bus_freq (ulong dummy) +ulong get_bus_freq(ulong dummy) { return gd->csb_clk; } -int print_clock_conf (void) +int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) { printf("Clock configuration:\n"); - printf(" Coherent System Bus: %4d MHz\n",gd->csb_clk/1000000); - printf(" Core: %4d MHz\n",gd->core_clk/1000000); - debug(" Local Bus Controller:%4d MHz\n",gd->lbiu_clk/1000000); - printf(" Local Bus: %4d MHz\n",gd->lclk_clk/1000000); - debug(" DDR: %4d MHz\n",gd->ddr_clk/1000000); - debug(" I2C: %4d MHz\n",gd->i2c_clk/1000000); - debug(" TSEC1: %4d MHz\n",gd->tsec1_clk/1000000); - debug(" TSEC2: %4d MHz\n",gd->tsec2_clk/1000000); - debug(" USB MPH: %4d MHz\n",gd->usbmph_clk/1000000); - debug(" USB DR: %4d MHz\n",gd->usbdr_clk/1000000); - + printf(" Core: %4d MHz\n", gd->core_clk / 1000000); + printf(" Coherent System Bus: %4d MHz\n", gd->csb_clk / 1000000); +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) + printf(" QE: %4d MHz\n", gd->qe_clk / 1000000); + printf(" BRG: %4d MHz\n", gd->brg_clk / 1000000); +#endif + printf(" Local Bus Controller:%4d MHz\n", gd->lbiu_clk / 1000000); + printf(" Local Bus: %4d MHz\n", gd->lclk_clk / 1000000); + printf(" DDR: %4d MHz\n", gd->ddr_clk / 1000000); +#if defined(CONFIG_MPC8360) + printf(" DDR Secondary: %4d MHz\n", gd->ddr_sec_clk / 1000000); +#endif + printf(" SEC: %4d MHz\n", gd->enc_clk / 1000000); + printf(" I2C1: %4d MHz\n", gd->i2c1_clk / 1000000); +#if !defined(CONFIG_MPC832X) + printf(" I2C2: %4d MHz\n", gd->i2c2_clk / 1000000); +#endif +#if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X) + printf(" TSEC1: %4d MHz\n", gd->tsec1_clk / 1000000); + printf(" TSEC2: %4d MHz\n", gd->tsec2_clk / 1000000); + printf(" USB DR: %4d MHz\n", gd->usbdr_clk / 1000000); +#endif +#if defined(CONFIG_MPC834X) + printf(" USB MPH: %4d MHz\n", gd->usbmph_clk / 1000000); +#endif return 0; } + +U_BOOT_CMD(clocks, 1, 0, do_clocks, + "clocks - print clock configuration\n", + " clocks\n" +); diff --git a/cpu/mpc83xx/start.S b/cpu/mpc83xx/start.S index 6e02cce799d..496c8a5861b 100644 --- a/cpu/mpc83xx/start.S +++ b/cpu/mpc83xx/start.S @@ -2,7 +2,7 @@ * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> * Copyright (C) 2000, 2001,2002 Wolfgang Denk <wd@denx.de> - * Copyright 2004 Freescale Semiconductor, Inc. + * Copyright Freescale Semiconductor, Inc. 2004, 2006. All rights reserved. * * See file CREDITS for list of people who contributed to this * project. @@ -77,19 +77,11 @@ END_GOT /* - * Version string - must be in data segment because MPC83xx uses the - * first 256 bytes for the Hard Reset Configuration Word table (see - * below). Similarly, can't have the U-Boot Magic Number as the first - * thing in the image - don't know how this will affect the image tools, - * but I guess I'll find out soon. + * The Hard Reset Configuration Word (HRCW) table is in the first 64 + * (0x40) bytes of flash. It has 8 bytes, but each byte is repeated 8 + * times so the processor can fetch it out of flash whether the flash + * is 8, 16, 32, or 64 bits wide (hardware trickery). */ - .data - .globl version_string -version_string: - .ascii U_BOOT_VERSION - .ascii " (", __DATE__, " - ", __TIME__, ")" - .ascii " ", CONFIG_IDENT_STRING, "\0" - .text #define _HRCW_TABLE_ENTRY(w) \ .fill 8,1,(((w)>>24)&0xff); \ @@ -100,13 +92,25 @@ version_string: _HRCW_TABLE_ENTRY(CFG_HRCW_LOW) _HRCW_TABLE_ENTRY(CFG_HRCW_HIGH) +/* + * Magic number and version string - put it after the HRCW since it + * cannot be first in flash like it is in many other processors. + */ + .long 0x27051956 /* U-Boot Magic Number */ + + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", __DATE__, " - ", __TIME__, ")" + .ascii " ", CONFIG_IDENT_STRING, "\0" + #ifndef CONFIG_DEFAULT_IMMR #error CONFIG_DEFAULT_IMMR must be defined #endif /* CFG_DEFAULT_IMMR */ -#ifndef CFG_IMMRBAR -#define CFG_IMMRBAR CONFIG_DEFAULT_IMMR -#endif /* CFG_IMMRBAR */ +#ifndef CFG_IMMR +#define CFG_IMMR CONFIG_DEFAULT_IMMR +#endif /* CFG_IMMR */ /* * After configuration, a system reset exception is executed using the @@ -152,8 +156,8 @@ boot_cold: /* time t 3 */ nop boot_warm: /* time t 5 */ mfmsr r5 /* save msr contents */ - lis r3, CFG_IMMRBAR@h - ori r3, r3, CFG_IMMRBAR@l + lis r3, CFG_IMMR@h + ori r3, r3, CFG_IMMR@l stw r3, IMMRBAR(r4) /* Initialise the E300 processor core */ @@ -226,7 +230,7 @@ in_flash: GET_GOT /* initialize GOT access */ /* r3: IMMR */ - lis r3, CFG_IMMRBAR@h + lis r3, CFG_IMMR@h /* run low-level CPU init code (in Flash)*/ bl cpu_init_f @@ -259,7 +263,7 @@ _start_of_vectors: /* Alignment exception. */ . = 0x600 Alignment: - EXCEPTION_PROLOG + EXCEPTION_PROLOG(SRR0, SRR1) mfspr r4,DAR stw r4,_DAR(r21) mfspr r5,DSISR @@ -278,7 +282,7 @@ Alignment: /* Program check exception */ . = 0x700 ProgramCheck: - EXCEPTION_PROLOG + EXCEPTION_PROLOG(SRR0, SRR1) addi r3,r1,STACK_FRAME_OVERHEAD li r20,MSR_KERNEL rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */ @@ -446,7 +450,7 @@ init_e300_core: /* time t 10 */ mtspr SRR1, r3 /* Make SRR1 match MSR */ - lis r3, CFG_IMMRBAR@h + lis r3, CFG_IMMR@h #if defined(CONFIG_WATCHDOG) /* Initialise the Wathcdog values and reset it (if req) */ /*------------------------------------------------------*/ @@ -870,6 +874,18 @@ ppcDcbz: dcbz r0,r3 blr + .globl ppcDWstore +ppcDWstore: + lfd 1, 0(r4) + stfd 1, 0(r3) + blr + + .globl ppcDWload +ppcDWload: + lfd 1, 0(r3) + stfd 1, 0(r4) + blr + /*-------------------------------------------------------------------*/ /* @@ -1189,7 +1205,7 @@ map_flash_by_law1: /* When booting from ROM (Flash or EPROM), clear the */ /* Address Mask in OR0 so ROM appears everywhere */ /*----------------------------------------------------*/ - lis r3, (CFG_IMMRBAR)@h /* r3 <= CFG_IMMRBAR */ + lis r3, (CFG_IMMR)@h /* r3 <= CFG_IMMR */ lwz r4, OR0@l(r3) li r5, 0x7fff /* r5 <= 0x00007FFFF */ and r4, r4, r5 @@ -1214,8 +1230,15 @@ map_flash_by_law1: lis r4, (CFG_FLASH_BASE)@h ori r4, r4, (CFG_FLASH_BASE)@l stw r4, LBLAWBAR1(r3) /* LBLAWBAR1 <= CFG_FLASH_BASE */ - lis r4, (0x80000016)@h - ori r4, r4, (0x80000016)@l + + /* Store 0x80000012 + log2(CFG_FLASH_SIZE) into LBLAWAR1 */ + lis r4, (0x80000012)@h + ori r4, r4, (0x80000012)@l + li r5, CFG_FLASH_SIZE +1: srawi. r5, r5, 1 /* r5 = r5 >> 1 */ + addi r4, r4, 1 + bne 1b + stw r4, LBLAWAR1(r3) /* LBLAWAR1 <= 8MB Flash Size */ blr @@ -1234,17 +1257,23 @@ remap_flash_by_law0: stw r5, BR0(r3) /* r5 <= (CFG_FLASH_BASE & 0xFFFF8000) | (BR0 & 0x00007FFF) */ lwz r4, OR0(r3) - lis r5, 0xFF80 /* 8M */ + lis r5, ~((CFG_FLASH_SIZE << 4) - 1) or r4, r4, r5 - stw r4, OR0(r3) /* OR0 <= OR0 | 0xFF800000 */ + stw r4, OR0(r3) lis r4, (CFG_FLASH_BASE)@h ori r4, r4, (CFG_FLASH_BASE)@l stw r4, LBLAWBAR0(r3) /* LBLAWBAR0 <= CFG_FLASH_BASE */ - lis r4, (0x80000016)@h - ori r4, r4, (0x80000016)@l - stw r4, LBLAWAR0(r3) /* LBLAWAR0 <= 8MB Flash Size */ + /* Store 0x80000012 + log2(CFG_FLASH_SIZE) into LBLAWAR0 */ + lis r4, (0x80000012)@h + ori r4, r4, (0x80000012)@l + li r5, CFG_FLASH_SIZE +1: srawi. r5, r5, 1 /* r5 = r5 >> 1 */ + addi r4, r4, 1 + bne 1b + stw r4, LBLAWAR0(r3) /* LBLAWAR0 <= Flash Size */ + xor r4, r4, r4 stw r4, LBLAWBAR1(r3) diff --git a/cpu/mpc83xx/traps.c b/cpu/mpc83xx/traps.c index 44345afbfaa..dfd6c038642 100644 --- a/cpu/mpc83xx/traps.c +++ b/cpu/mpc83xx/traps.c @@ -1,5 +1,8 @@ /* - * linux/arch/ppc/kernel/traps.c + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -15,19 +18,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * - * Change log: - * - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * Modified by Cort Dougan (cort@cs.nmt.edu) - * and Paul Mackerras (paulus@cs.anu.edu.au) - * - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) */ /* @@ -150,7 +140,7 @@ MachineCheckException(struct pt_regs *regs) return; } -#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#if defined(CONFIG_CMD_KGDB) if (debugger_exception_handler && (*debugger_exception_handler)(regs)) return; #endif @@ -186,7 +176,7 @@ MachineCheckException(struct pt_regs *regs) void AlignmentException(struct pt_regs *regs) { -#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#if defined(CONFIG_CMD_KGDB) if (debugger_exception_handler && (*debugger_exception_handler)(regs)) return; #endif @@ -198,7 +188,7 @@ AlignmentException(struct pt_regs *regs) void ProgramCheckException(struct pt_regs *regs) { -#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#if defined(CONFIG_CMD_KGDB) if (debugger_exception_handler && (*debugger_exception_handler)(regs)) return; #endif @@ -210,7 +200,7 @@ ProgramCheckException(struct pt_regs *regs) void SoftEmuException(struct pt_regs *regs) { -#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#if defined(CONFIG_CMD_KGDB) if (debugger_exception_handler && (*debugger_exception_handler)(regs)) return; #endif @@ -223,7 +213,7 @@ SoftEmuException(struct pt_regs *regs) void UnknownException(struct pt_regs *regs) { -#if (CONFIG_COMMANDS & CFG_CMD_KGDB) +#if defined(CONFIG_CMD_KGDB) if (debugger_exception_handler && (*debugger_exception_handler)(regs)) return; #endif @@ -232,7 +222,7 @@ UnknownException(struct pt_regs *regs) _exception(0, regs); } -#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG) +#if defined(CONFIG_CMD_BEDBUG) extern void do_bedbug_breakpoint(struct pt_regs *); #endif @@ -241,7 +231,7 @@ DebugException(struct pt_regs *regs) { printf("Debugger trap at @ %lx\n", regs->nip ); show_regs(regs); -#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG) +#if defined(CONFIG_CMD_BEDBUG) do_bedbug_breakpoint( regs ); #endif } diff --git a/cpu/mpc83xx/u-boot.lds b/cpu/mpc83xx/u-boot.lds new file mode 100644 index 00000000000..937c87a27cd --- /dev/null +++ b/cpu/mpc83xx/u-boot.lds @@ -0,0 +1,123 @@ +/* + * (C) Copyright 2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_ARCH(powerpc) +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + . = + SIZEOF_HEADERS; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rel.text : { *(.rel.text) } + .rela.text : { *(.rela.text) } + .rel.data : { *(.rel.data) } + .rela.data : { *(.rela.data) } + .rel.rodata : { *(.rel.rodata) } + .rela.rodata : { *(.rela.rodata) } + .rel.got : { *(.rel.got) } + .rela.got : { *(.rela.got) } + .rel.ctors : { *(.rel.ctors) } + .rela.ctors : { *(.rela.ctors) } + .rel.dtors : { *(.rel.dtors) } + .rela.dtors : { *(.rela.dtors) } + .rel.bss : { *(.rel.bss) } + .rela.bss : { *(.rela.bss) } + .rel.plt : { *(.rel.plt) } + .rela.plt : { *(.rela.plt) } + .init : { *(.init) } + .plt : { *(.plt) } + .text : + { + cpu/mpc83xx/start.o (.text) + *(.text) + *(.fixup) + *(.got1) + . = ALIGN(16); + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + *(.eh_frame) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x0FFF) & 0xFFFFF000; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2; + __fixup_entries = (. - _FIXUP_TABLE_) >> 2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + . = .; + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(4096); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(4096); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} +ENTRY(_start) |