diff options
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/cache_v7.c | 26 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/clock.c | 4 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/lowlevel_init.S | 38 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/gpio.c | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap3/board.c | 10 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap3/clock.c | 17 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/board.c | 10 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/ap20.c | 91 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/clock.c | 158 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/pinmux.c | 52 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/tegra2/timer.c | 18 |
12 files changed, 335 insertions, 93 deletions
diff --git a/arch/arm/cpu/armv7/cache_v7.c b/arch/arm/cpu/armv7/cache_v7.c index 3e1e1bf877..1b4e808a79 100644 --- a/arch/arm/cpu/armv7/cache_v7.c +++ b/arch/arm/cpu/armv7/cache_v7.c @@ -81,8 +81,8 @@ static void v7_inval_dcache_level_setway(u32 level, u32 num_sets, : : "r" (setway)); } } - /* DMB to make sure the operation is complete */ - CP15DMB; + /* DSB to make sure the operation is complete */ + CP15DSB; } static void v7_clean_inval_dcache_level_setway(u32 level, u32 num_sets, @@ -108,8 +108,8 @@ static void v7_clean_inval_dcache_level_setway(u32 level, u32 num_sets, : : "r" (setway)); } } - /* DMB to make sure the operation is complete */ - CP15DMB; + /* DSB to make sure the operation is complete */ + CP15DSB; } static void v7_maint_dcache_level_setway(u32 level, u32 operation) @@ -181,21 +181,23 @@ static void v7_dcache_inval_range(u32 start, u32 stop, u32 line_len) u32 mva; /* - * If start address is not aligned to cache-line flush the first - * line to prevent affecting somebody else's buffer + * If start address is not aligned to cache-line do not + * invalidate the first cache-line */ if (start & (line_len - 1)) { - v7_dcache_clean_inval_range(start, start + 1, line_len); + printf("ERROR: %s - start address is not aligned - 0x%08x\n", + __func__, start); /* move to next cache line */ start = (start + line_len - 1) & ~(line_len - 1); } /* - * If stop address is not aligned to cache-line flush the last - * line to prevent affecting somebody else's buffer + * If stop address is not aligned to cache-line do not + * invalidate the last cache-line */ if (stop & (line_len - 1)) { - v7_dcache_clean_inval_range(stop, stop + 1, line_len); + printf("ERROR: %s - stop address is not aligned - 0x%08x\n", + __func__, stop); /* align to the beginning of this cache line */ stop &= ~(line_len - 1); } @@ -227,8 +229,8 @@ static void v7_dcache_maint_range(u32 start, u32 stop, u32 range_op) break; } - /* DMB to make sure the operation is complete */ - CP15DMB; + /* DSB to make sure the operation is complete */ + CP15DSB; } /* Invalidate TLB */ diff --git a/arch/arm/cpu/armv7/mx5/clock.c b/arch/arm/cpu/armv7/mx5/clock.c index 0b04a8819a..00610a0d59 100644 --- a/arch/arm/cpu/armv7/mx5/clock.c +++ b/arch/arm/cpu/armv7/mx5/clock.c @@ -288,7 +288,7 @@ int do_mx5_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) /***************************************************/ U_BOOT_CMD( - clockinfo, CONFIG_SYS_MAXARGS, 1, do_mx5_showclocks, - "display clocks\n", + clocks, CONFIG_SYS_MAXARGS, 1, do_mx5_showclocks, + "display clocks", "" ); diff --git a/arch/arm/cpu/armv7/mx5/lowlevel_init.S b/arch/arm/cpu/armv7/mx5/lowlevel_init.S index 94de9f1d61..6c66b42619 100644 --- a/arch/arm/cpu/armv7/mx5/lowlevel_init.S +++ b/arch/arm/cpu/armv7/mx5/lowlevel_init.S @@ -121,6 +121,35 @@ beq 1b .endm +.macro setup_pll_errata pll, freq + ldr r2, =\pll + mov r1, #0x0 + str r1, [r2, #PLL_DP_CONFIG] /* Disable auto-restart AREN bit */ + ldr r1, =0x00001236 + str r1, [r2, #PLL_DP_CTL] /* Restart PLL with PLM=1 */ +1: ldr r1, [r2, #PLL_DP_CTL] /* Wait for lock */ + ands r1, r1, #0x1 + beq 1b + + ldr r5, \freq + str r5, [r2, #PLL_DP_MFN] /* Modify MFN value */ + str r5, [r2, #PLL_DP_HFS_MFN] + + mov r1, #0x1 + str r1, [r2, #PLL_DP_CONFIG] /* Reload MFN value */ + +2: ldr r1, [r2, #PLL_DP_CONFIG] + tst r1, #1 + bne 2b + + ldr r1, =100 /* Wait at least 4 us */ +3: subs r1, r1, #1 + bge 3b + + mov r1, #0x2 + str r1, [r2, #PLL_DP_CONFIG] /* Enable auto-restart AREN bit */ +.endm + .macro init_clock ldr r0, =CCM_BASE_ADDR @@ -157,7 +186,12 @@ mov r1, #0x4 str r1, [r0, #CLKCTL_CCSR] +#if defined(CONFIG_MX51_PLL_ERRATA) + setup_pll PLL1_BASE_ADDR, 864 + setup_pll_errata PLL1_BASE_ADDR, W_DP_MFN_800_DIT +#else setup_pll PLL1_BASE_ADDR, 800 +#endif #if defined(CONFIG_MX51) setup_pll PLL3_BASE_ADDR, 665 @@ -287,6 +321,10 @@ lowlevel_init: mov pc,lr /* Board level setting value */ +W_DP_OP_864: .word DP_OP_864 +W_DP_MFD_864: .word DP_MFD_864 +W_DP_MFN_864: .word DP_MFN_864 +W_DP_MFN_800_DIT: .word DP_MFN_800_DIT W_DP_OP_800: .word DP_OP_800 W_DP_MFD_800: .word DP_MFD_800 W_DP_MFN_800: .word DP_MFN_800 diff --git a/arch/arm/cpu/armv7/omap-common/gpio.c b/arch/arm/cpu/armv7/omap-common/gpio.c index f4c347941d..2fcaf5a9f8 100644 --- a/arch/arm/cpu/armv7/omap-common/gpio.c +++ b/arch/arm/cpu/armv7/omap-common/gpio.c @@ -36,7 +36,7 @@ * published by the Free Software Foundation. */ #include <common.h> -#include <asm/omap_gpio.h> +#include <asm/arch/gpio.h> #include <asm/io.h> #include <asm/errno.h> diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c index 4aaf97b335..0448bc93ff 100644 --- a/arch/arm/cpu/armv7/omap3/board.c +++ b/arch/arm/cpu/armv7/omap3/board.c @@ -38,7 +38,7 @@ #include <asm/arch/mem.h> #include <asm/cache.h> #include <asm/armv7.h> -#include <asm/omap_gpio.h> +#include <asm/arch/gpio.h> /* Declarations */ extern omap3_sysinfo sysinfo; @@ -402,3 +402,11 @@ void v7_outer_cache_disable(void) omap3_update_aux_cr(0, 0x2); } #endif + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif diff --git a/arch/arm/cpu/armv7/omap3/clock.c b/arch/arm/cpu/armv7/omap3/clock.c index 3d38d08ccb..e0d65c7a4a 100644 --- a/arch/arm/cpu/armv7/omap3/clock.c +++ b/arch/arm/cpu/armv7/omap3/clock.c @@ -399,7 +399,7 @@ static void dpll3_init_36xx(u32 sil_index, u32 clk_index) /* L3 */ sr32(&prcm_base->clksel_core, 0, 2, CORE_L3_DIV); /* GFX */ - sr32(&prcm_base->clksel_gfx, 0, 3, GFX_DIV); + sr32(&prcm_base->clksel_gfx, 0, 3, GFX_DIV_36X); /* RESET MGR */ sr32(&prcm_base->clksel_wkup, 1, 2, WKUP_RSM); /* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */ @@ -579,6 +579,7 @@ void prcm_init(void) dpll3_init_36xx(0, clk_index); dpll4_init_36xx(0, clk_index); + dpll5_init_34xx(0, clk_index); iva_init_36xx(0, clk_index); mpu_init_36xx(0, clk_index); @@ -607,7 +608,9 @@ void prcm_init(void) dpll3_init_34xx(sil_index, clk_index); dpll4_init_34xx(sil_index, clk_index); dpll5_init_34xx(sil_index, clk_index); - iva_init_34xx(sil_index, clk_index); + if (get_cpu_family() != CPU_AM35XX) + iva_init_34xx(sil_index, clk_index); + mpu_init_34xx(sil_index, clk_index); /* Lock MPU DPLL to set frequency */ @@ -674,7 +677,9 @@ void per_clocks_enable(void) /* Enable the ICLK for 32K Sync Timer as its used in udelay */ sr32(&prcm_base->iclken_wkup, 2, 1, 0x1); - sr32(&prcm_base->fclken_iva2, 0, 32, FCK_IVA2_ON); + if (get_cpu_family() != CPU_AM35XX) + sr32(&prcm_base->fclken_iva2, 0, 32, FCK_IVA2_ON); + sr32(&prcm_base->fclken1_core, 0, 32, FCK_CORE1_ON); sr32(&prcm_base->iclken1_core, 0, 32, ICK_CORE1_ON); sr32(&prcm_base->iclken2_core, 0, 32, ICK_CORE2_ON); @@ -682,8 +687,10 @@ void per_clocks_enable(void) sr32(&prcm_base->iclken_wkup, 0, 32, ICK_WKUP_ON); sr32(&prcm_base->fclken_dss, 0, 32, FCK_DSS_ON); sr32(&prcm_base->iclken_dss, 0, 32, ICK_DSS_ON); - sr32(&prcm_base->fclken_cam, 0, 32, FCK_CAM_ON); - sr32(&prcm_base->iclken_cam, 0, 32, ICK_CAM_ON); + if (get_cpu_family() != CPU_AM35XX) { + sr32(&prcm_base->fclken_cam, 0, 32, FCK_CAM_ON); + sr32(&prcm_base->iclken_cam, 0, 32, ICK_CAM_ON); + } sr32(&prcm_base->fclken_per, 0, 32, FCK_PER_ON); sr32(&prcm_base->iclken_per, 0, 32, ICK_PER_ON); diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c index 5943d61fc2..69a0ce5513 100644 --- a/arch/arm/cpu/armv7/omap4/board.c +++ b/arch/arm/cpu/armv7/omap4/board.c @@ -33,7 +33,7 @@ #include <asm/arch/sys_proto.h> #include <asm/sizes.h> #include <asm/arch/emif.h> -#include <asm/omap_gpio.h> +#include <asm/arch/gpio.h> #include "omap4_mux_data.h" DECLARE_GLOBAL_DATA_PTR; @@ -299,3 +299,11 @@ void v7_outer_cache_disable(void) set_pl310_ctrl_reg(0); } #endif + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif diff --git a/arch/arm/cpu/armv7/tegra2/Makefile b/arch/arm/cpu/armv7/tegra2/Makefile index f1ea915851..f673f036f9 100644 --- a/arch/arm/cpu/armv7/tegra2/Makefile +++ b/arch/arm/cpu/armv7/tegra2/Makefile @@ -28,7 +28,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).o SOBJS := lowlevel_init.o -COBJS := ap20.o board.o sys_info.o timer.o +COBJS := ap20.o board.o clock.o pinmux.o sys_info.o timer.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) diff --git a/arch/arm/cpu/armv7/tegra2/ap20.c b/arch/arm/cpu/armv7/tegra2/ap20.c index 60dd5dfc08..dc5f984d6f 100644 --- a/arch/arm/cpu/armv7/tegra2/ap20.c +++ b/arch/arm/cpu/armv7/tegra2/ap20.c @@ -25,6 +25,7 @@ #include <asm/io.h> #include <asm/arch/tegra2.h> #include <asm/arch/clk_rst.h> +#include <asm/arch/clock.h> #include <asm/arch/pmc.h> #include <asm/arch/pinmux.h> #include <asm/arch/scu.h> @@ -35,33 +36,32 @@ u32 s_first_boot = 1; void init_pllx(void) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + struct clk_pll *pll = &clkrst->crc_pll[CLOCK_PLL_ID_XCPU]; u32 reg; /* If PLLX is already enabled, just return */ - reg = readl(&clkrst->crc_pllx_base); - if (reg & PLL_ENABLE) + if (readl(&pll->pll_base) & PLL_ENABLE_MASK) return; /* Set PLLX_MISC */ - reg = CPCON; /* CPCON[11:8] = 0001 */ - writel(reg, &clkrst->crc_pllx_misc); + writel(1 << PLL_CPCON_SHIFT, &pll->pll_misc); /* Use 12MHz clock here */ - reg = (PLL_BYPASS | PLL_DIVM); - reg |= (1000 << 8); /* DIVN = 0x3E8 */ - writel(reg, &clkrst->crc_pllx_base); + reg = PLL_BYPASS_MASK | (12 << PLL_DIVM_SHIFT); + reg |= 1000 << PLL_DIVN_SHIFT; + writel(reg, &pll->pll_base); - reg |= PLL_ENABLE; - writel(reg, &clkrst->crc_pllx_base); + reg |= PLL_ENABLE_MASK; + writel(reg, &pll->pll_base); - reg &= ~PLL_BYPASS; - writel(reg, &clkrst->crc_pllx_base); + reg &= ~PLL_BYPASS_MASK; + writel(reg, &pll->pll_base); } static void enable_cpu_clock(int enable) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; - u32 reg, clk; + u32 clk; /* * NOTE: @@ -83,27 +83,19 @@ static void enable_cpu_clock(int enable) writel(SUPER_CCLK_DIVIDER, &clkrst->crc_super_cclk_div); } - /* Fetch the register containing the main CPU complex clock enable */ - reg = readl(&clkrst->crc_clk_out_enb_l); - reg |= CLK_ENB_CPU; - /* * Read the register containing the individual CPU clock enables and * always stop the clock to CPU 1. */ clk = readl(&clkrst->crc_clk_cpu_cmplx); - clk |= CPU1_CLK_STP; - - if (enable) { - /* Unstop the CPU clock */ - clk &= ~CPU0_CLK_STP; - } else { - /* Stop the CPU clock */ - clk |= CPU0_CLK_STP; - } + clk |= 1 << CPU1_CLK_STP_SHIFT; + /* Stop/Unstop the CPU clock */ + clk &= ~CPU0_CLK_STP_MASK; + clk |= !enable << CPU0_CLK_STP_SHIFT; writel(clk, &clkrst->crc_clk_cpu_cmplx); - writel(reg, &clkrst->crc_clk_out_enb_l); + + clock_enable(PERIPH_ID_CPU); } static int is_cpu_powered(void) @@ -178,9 +170,6 @@ static void enable_cpu_power_rail(void) static void reset_A9_cpu(int reset) { - struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; - u32 reg, cpu; - /* * NOTE: Regardless of whether the request is to hold the CPU in reset * or take it out of reset, every processor in the CPU complex @@ -189,48 +178,22 @@ static void reset_A9_cpu(int reset) * are multiple processors in the CPU complex. */ - /* Hold CPU 1 in reset */ - cpu = SET_DBGRESET1 | SET_DERESET1 | SET_CPURESET1; - writel(cpu, &clkrst->crc_cpu_cmplx_set); - - reg = readl(&clkrst->crc_rst_dev_l); - if (reset) { - /* Now place CPU0 into reset */ - cpu |= SET_DBGRESET0 | SET_DERESET0 | SET_CPURESET0; - writel(cpu, &clkrst->crc_cpu_cmplx_set); - - /* Enable master CPU reset */ - reg |= SWR_CPU_RST; - } else { - /* Take CPU0 out of reset */ - cpu = CLR_DBGRESET0 | CLR_DERESET0 | CLR_CPURESET0; - writel(cpu, &clkrst->crc_cpu_cmplx_clr); - - /* Disable master CPU reset */ - reg &= ~SWR_CPU_RST; - } + /* Hold CPU 1 in reset, and CPU 0 if asked */ + reset_cmplx_set_enable(1, crc_rst_cpu | crc_rst_de | crc_rst_debug, 1); + reset_cmplx_set_enable(0, crc_rst_cpu | crc_rst_de | crc_rst_debug, + reset); - writel(reg, &clkrst->crc_rst_dev_l); + /* Enable/Disable master CPU reset */ + reset_set_enable(PERIPH_ID_CPU, reset); } static void clock_enable_coresight(int enable) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; - u32 rst, clk, src; - - rst = readl(&clkrst->crc_rst_dev_u); - clk = readl(&clkrst->crc_clk_out_enb_u); - - if (enable) { - rst &= ~SWR_CSITE_RST; - clk |= CLK_ENB_CSITE; - } else { - rst |= SWR_CSITE_RST; - clk &= ~CLK_ENB_CSITE; - } + u32 rst, src; - writel(clk, &clkrst->crc_clk_out_enb_u); - writel(rst, &clkrst->crc_rst_dev_u); + clock_set_enable(PERIPH_ID_CORESIGHT, enable); + reset_set_enable(PERIPH_ID_CORESIGHT, !enable); if (enable) { /* diff --git a/arch/arm/cpu/armv7/tegra2/clock.c b/arch/arm/cpu/armv7/tegra2/clock.c new file mode 100644 index 0000000000..67eed14044 --- /dev/null +++ b/arch/arm/cpu/armv7/tegra2/clock.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * 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 + */ + +/* Tegra2 Clock control functions */ + +#include <asm/io.h> +#include <asm/arch/clk_rst.h> +#include <asm/arch/clock.h> +#include <asm/arch/timer.h> +#include <asm/arch/tegra2.h> +#include <common.h> + +#ifdef DEBUG +#define assert(x) \ + ({ if (!(x)) printf("Assertion failure '%s' %s line %d\n", \ + #x, __FILE__, __LINE__); }) +#else +#define assert(x) +#endif + +/* + * Get the oscillator frequency, from the corresponding hardware configuration + * field. + */ +enum clock_osc_freq clock_get_osc_freq(void) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 reg; + + reg = readl(&clkrst->crc_osc_ctrl); + return (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; +} + +unsigned long clock_start_pll(enum clock_pll_id clkid, u32 divm, u32 divn, + u32 divp, u32 cpcon, u32 lfcon) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 data; + struct clk_pll *pll; + + assert(clock_pll_id_isvalid(clkid)); + pll = &clkrst->crc_pll[clkid]; + + /* + * We cheat by treating all PLL (except PLLU) in the same fashion. + * This works only because: + * - same fields are always mapped at same offsets, except DCCON + * - DCCON is always 0, doesn't conflict + * - M,N, P of PLLP values are ignored for PLLP + */ + data = (cpcon << PLL_CPCON_SHIFT) | (lfcon << PLL_LFCON_SHIFT); + writel(data, &pll->pll_misc); + + data = (divm << PLL_DIVM_SHIFT) | (divn << PLL_DIVN_SHIFT) | + (0 << PLL_BYPASS_SHIFT) | (1 << PLL_ENABLE_SHIFT); + + if (clkid == CLOCK_PLL_ID_USB) + data |= divp << PLLU_VCO_FREQ_SHIFT; + else + data |= divp << PLL_DIVP_SHIFT; + writel(data, &pll->pll_base); + + /* calculate the stable time */ + return timer_get_us() + CLOCK_PLL_STABLE_DELAY_US; +} + +void clock_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)]; + u32 reg; + + /* Enable/disable the clock to this peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + reg = readl(clk); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, clk); +} + +void clock_enable(enum periph_id clkid) +{ + clock_set_enable(clkid, 1); +} + +void clock_disable(enum periph_id clkid) +{ + clock_set_enable(clkid, 0); +} + +void reset_set_enable(enum periph_id periph_id, int enable) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 *reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)]; + u32 reg; + + /* Enable/disable reset to the peripheral */ + assert(clock_periph_id_isvalid(periph_id)); + reg = readl(reset); + if (enable) + reg |= PERIPH_MASK(periph_id); + else + reg &= ~PERIPH_MASK(periph_id); + writel(reg, reset); +} + +void reset_periph(enum periph_id periph_id, int us_delay) +{ + /* Put peripheral into reset */ + reset_set_enable(periph_id, 1); + udelay(us_delay); + + /* Remove reset */ + reset_set_enable(periph_id, 0); + + udelay(us_delay); +} + +void reset_cmplx_set_enable(int cpu, int which, int reset) +{ + struct clk_rst_ctlr *clkrst = + (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + u32 mask; + + /* Form the mask, which depends on the cpu chosen. Tegra2 has 2 */ + assert(cpu >= 0 && cpu < 2); + mask = which << cpu; + + /* either enable or disable those reset for that CPU */ + if (reset) + writel(mask, &clkrst->crc_cpu_cmplx_set); + else + writel(mask, &clkrst->crc_cpu_cmplx_clr); +} diff --git a/arch/arm/cpu/armv7/tegra2/pinmux.c b/arch/arm/cpu/armv7/tegra2/pinmux.c new file mode 100644 index 0000000000..5594ab80f6 --- /dev/null +++ b/arch/arm/cpu/armv7/tegra2/pinmux.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * 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 + */ + +/* Tegra2 pin multiplexing functions */ + +#include <asm/io.h> +#include <asm/arch/tegra2.h> +#include <asm/arch/pinmux.h> +#include <common.h> + + +void pinmux_set_tristate(enum pmux_pin pin, int enable) +{ + struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE; + u32 *tri = &pmt->pmt_tri[TRISTATE_REG(pin)]; + u32 reg; + + reg = readl(tri); + if (enable) + reg |= TRISTATE_MASK(pin); + else + reg &= ~TRISTATE_MASK(pin); + writel(reg, tri); +} + +void pinmux_tristate_enable(enum pmux_pin pin) +{ + pinmux_set_tristate(pin, 1); +} + +void pinmux_tristate_disable(enum pmux_pin pin) +{ + pinmux_set_tristate(pin, 0); +} diff --git a/arch/arm/cpu/armv7/tegra2/timer.c b/arch/arm/cpu/armv7/tegra2/timer.c index 0b9fa6418c..b12b12cc30 100644 --- a/arch/arm/cpu/armv7/tegra2/timer.c +++ b/arch/arm/cpu/armv7/tegra2/timer.c @@ -38,13 +38,12 @@ #include <common.h> #include <asm/io.h> #include <asm/arch/tegra2.h> +#include <asm/arch/timer.h> DECLARE_GLOBAL_DATA_PTR; -struct timerus *timer_base = (struct timerus *)NV_PA_TMRUS_BASE; - /* counter runs at 1MHz */ -#define TIMER_CLK (1000000) +#define TIMER_CLK 1000000 #define TIMER_LOAD_VAL 0xffffffff /* timer without interrupts */ @@ -57,10 +56,10 @@ ulong get_timer(ulong base) void __udelay(unsigned long usec) { long tmo = usec * (TIMER_CLK / 1000) / 1000; - unsigned long now, last = readl(&timer_base->cntr_1us); + unsigned long now, last = timer_get_us(); while (tmo > 0) { - now = readl(&timer_base->cntr_1us); + now = timer_get_us(); if (last > now) /* count up timer overflow */ tmo -= TIMER_LOAD_VAL - last + now; else @@ -74,7 +73,7 @@ ulong get_timer_masked(void) ulong now; /* current tick value */ - now = readl(&timer_base->cntr_1us) / (TIMER_CLK / CONFIG_SYS_HZ); + now = timer_get_us() / (TIMER_CLK / CONFIG_SYS_HZ); if (now >= gd->lastinc) /* normal mode (non roll) */ /* move stamp forward with absolute diff ticks */ @@ -103,3 +102,10 @@ ulong get_tbclk(void) { return CONFIG_SYS_HZ; } + +unsigned long timer_get_us(void) +{ + struct timerus *timer_base = (struct timerus *)NV_PA_TMRUS_BASE; + + return readl(&timer_base->cntr_1us); +} |