diff options
author | Heiko Schocher <hs@denx.de> | 2010-07-19 23:46:48 +0200 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2010-08-09 00:09:20 +0200 |
commit | e604e4091631e0601e2eeb3f0c197eea95ebe498 (patch) | |
tree | 7d46b9b0668fbc5de581750101c8a12a8bb61c16 /board/kup/kup4x/kup4x.c | |
parent | 958e120643e8b6765b3ff84dfcf57624076afd21 (diff) |
8xx, kup4k/kup4x: configuration changes, code cleanup
- nfs-options removed
- hda->sda changed
- mtd parts added
- loadaddress changed
- cmd-line length increased
- lcd stuff removed
- code cleanup (use I/O accessors etc.)
Signed-off-by: Klaus Heydeck <heydeck@kieback-peter.de>
Diffstat (limited to 'board/kup/kup4x/kup4x.c')
-rw-r--r-- | board/kup/kup4x/kup4x.c | 265 |
1 files changed, 77 insertions, 188 deletions
diff --git a/board/kup/kup4x/kup4x.c b/board/kup/kup4x/kup4x.c index 65a222b5ef1..1686effd999 100644 --- a/board/kup/kup4x/kup4x.c +++ b/board/kup/kup4x/kup4x.c @@ -26,28 +26,8 @@ #include <mpc8xx.h> #include <post.h> #include "../common/kup.h" -#ifdef CONFIG_KUP4K_LOGO -/* #include "s1d13706.h" */ -#endif - -#define KUP4X_USB - - -typedef struct { - volatile unsigned char *VmemAddr; - volatile unsigned char *RegAddr; -} FB_INFO_S1D13xxx; - -/* ------------------------------------------------------------------------- */ - -int usb_init_kup4x (void); - +#include <asm/io.h> -#ifdef CONFIG_KUP4K_LOGO -void lcd_logo (bd_t * bd); -#endif - -/* ------------------------------------------------------------------------- */ #define _NOT_USED_ 0xFFFFFFFF @@ -106,207 +86,116 @@ const uint sdram_table[] = { _NOT_USED_, _NOT_USED_, _NOT_USED_, }; -/* ------------------------------------------------------------------------- */ /* * Check Board Identity: */ -int checkboard (void) +int checkboard(void) { volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; volatile memctl8xx_t *memctl = &immap->im_memctl; - volatile uchar *latch; - uchar rev, mod; + uchar latch, rev, mod; /* * Init ChipSelect #4 (CAN + HW-Latch) */ - memctl->memc_or4 = 0xFFFF8926; - memctl->memc_br4 = 0x90000401; - __asm__ ("eieio"); - latch = (volatile uchar *) 0x90000200; - rev = (*latch & 0xF8) >> 3; - mod = (*latch & 0x03); - printf ("Board: KUP4X Rev %d.%d\n",rev,mod); - return (0); + out_be32(&memctl->memc_or4, 0xFFFF8926); + out_be32(&memctl->memc_br4, 0x90000401); + + latch = in_8( (unsigned char *) LATCH_ADDR); + rev = (latch & 0xF8) >> 3; + mod = (latch & 0x03); + + printf("Board: KUP4X Rev %d.%d\n", rev, mod); + + return 0; } -/* ------------------------------------------------------------------------- */ -phys_size_t initdram (int board_type) +phys_size_t initdram(int board_type) { volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; volatile memctl8xx_t *memctl = &immap->im_memctl; - long int size_b0 = 0; - long int size_b1 = 0; - long int size_b2 = 0; - long int size_b3 = 0; - upmconfig (UPMA, (uint *) sdram_table, + upmconfig(UPMA, (uint *) sdram_table, sizeof (sdram_table) / sizeof (uint)); - /* - * Preliminary prescaler for refresh (depends on number of - * banks): This value is selected for four cycles every 62.4 us - * with two SDRAM banks or four cycles every 31.2 us with one - * bank. It will be adjusted after memory sizing. - */ - memctl->memc_mptpr = CONFIG_SYS_MPTPR; - memctl->memc_mar = 0x00000088; + out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR); - /* - * Map controller banks 1 and 2 to the SDRAM banks 2 and 3 at - * preliminary addresses - these have to be modified after the - * SDRAM size has been determined. - */ -/* memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM; */ -/* memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM; */ + out_be32(&memctl->memc_mar, 0x00000088); -/* memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM; */ -/* memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM; */ + out_be32(&memctl->memc_mamr, + CONFIG_SYS_MAMR & (~(MAMR_PTAE))); /* no refresh yet */ - memctl->memc_mamr = CONFIG_SYS_MAMR & (~(MAMR_PTAE)); /* no refresh yet */ - - udelay (200); + udelay(200); /* perform SDRAM initializsation sequence */ - memctl->memc_mcr = 0x80002105; /* SDRAM bank 0 */ - udelay (1); - memctl->memc_mcr = 0x80002830; /* SDRAM bank 0 - execute twice */ - udelay (1); - memctl->memc_mcr = 0x80002106; /* SDRAM bank 0 - RUN MRS Pattern from loc 6 */ - udelay (1); - - memctl->memc_mcr = 0x80004105; /* SDRAM bank 1 */ - udelay (1); - memctl->memc_mcr = 0x80004830; /* SDRAM bank 1 - execute twice */ - udelay (1); - memctl->memc_mcr = 0x80004106; /* SDRAM bank 1 - RUN MRS Pattern from loc 6 */ - udelay (1); - - memctl->memc_mcr = 0x80006105; /* SDRAM bank 2 */ - udelay (1); - memctl->memc_mcr = 0x80006830; /* SDRAM bank 2 - execute twice */ - udelay (1); - memctl->memc_mcr = 0x80006106; /* SDRAM bank 2 - RUN MRS Pattern from loc 6 */ - udelay (1); - - memctl->memc_mcr = 0x8000C105; /* SDRAM bank 2 */ - udelay (1); - memctl->memc_mcr = 0x8000C830; /* SDRAM bank 2 - execute twice */ - udelay (1); - memctl->memc_mcr = 0x8000C106; /* SDRAM bank 2 - RUN MRS Pattern from loc 6 */ - udelay (1); - - memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */ - udelay (1000); -#if 0 /* 4 x 8MB */ - size_b0 = 0x00800000; - size_b1 = 0x00800000; - size_b2 = 0x00800000; - size_b3 = 0x00800000; - memctl->memc_mptpr = CONFIG_SYS_MPTPR; - udelay (1000); - memctl->memc_or1 = 0xFF800A00; - memctl->memc_br1 = 0x00000081; - memctl->memc_or2 = 0xFF000A00; - memctl->memc_br2 = 0x00800081; - memctl->memc_or3 = 0xFE000A00; - memctl->memc_br3 = 0x01000081; - memctl->memc_or6 = 0xFE000A00; - memctl->memc_br6 = 0x01800081; -#else /* 4 x 16 MB */ - size_b0 = 0x01000000; - size_b1 = 0x01000000; - size_b2 = 0x01000000; - size_b3 = 0x01000000; - memctl->memc_mptpr = CONFIG_SYS_MPTPR; - udelay (1000); - memctl->memc_or1 = 0xFF000A00; - memctl->memc_br1 = 0x00000081; - memctl->memc_or2 = 0xFE000A00; - memctl->memc_br2 = 0x01000081; - memctl->memc_or3 = 0xFD000A00; - memctl->memc_br3 = 0x02000081; - memctl->memc_or6 = 0xFC000A00; - memctl->memc_br6 = 0x03000081; -#endif - udelay (10000); - - return (size_b0 + size_b1 + size_b2 + size_b3); + /* SDRAM bank 0 */ + out_be32(&memctl->memc_mcr, 0x80002105); + udelay(1); + out_be32(&memctl->memc_mcr, 0x80002830); /* execute twice */ + udelay(1); + out_be32(&memctl->memc_mcr, 0x80002106); /* RUN MRS Pattern from loc 6 */ + udelay(1); + + /* SDRAM bank 1 */ + out_be32(&memctl->memc_mcr, 0x80004105); + udelay(1); + out_be32(&memctl->memc_mcr, 0x80004830); /* execute twice */ + udelay(1); + out_be32(&memctl->memc_mcr, 0x80004106); /* RUN MRS Pattern from loc 6 */ + udelay(1); + + /* SDRAM bank 2 */ + out_be32(&memctl->memc_mcr, 0x80006105); + udelay(1); + out_be32(&memctl->memc_mcr, 0x80006830); /* execute twice */ + udelay(1); + out_be32(&memctl->memc_mcr, 0x80006106); /* RUN MRS Pattern from loc 6 */ + udelay(1); + + /* SDRAM bank 3 */ + out_be32(&memctl->memc_mcr, 0x8000C105); + udelay(1); + out_be32(&memctl->memc_mcr, 0x8000C830); /* execute twice */ + udelay(1); + out_be32(&memctl->memc_mcr, 0x8000C106); /* RUN MRS Pattern from loc 6 */ + udelay(1); + + setbits_be32(&memctl->memc_mamr, MAMR_PTAE); /* enable refresh */ + + udelay(1000); + /* 4 x 16 MB */ + out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR); + udelay(1000); + out_be32(&memctl->memc_or1, 0xFF000A00); + out_be32(&memctl->memc_br1, 0x00000081); + out_be32(&memctl->memc_or2, 0xFE000A00); + out_be32(&memctl->memc_br2, 0x01000081); + out_be32(&memctl->memc_or3, 0xFD000A00); + out_be32(&memctl->memc_br3, 0x02000081); + out_be32(&memctl->memc_or6, 0xFC000A00); + out_be32(&memctl->memc_br6, 0x03000081); + udelay(10000); + + return (4 * 16 * 1024 * 1024); } -/* ------------------------------------------------------------------------- */ - -/* - * Check memory range for valid RAM. A simple memory test determines - * the actually available RAM size between addresses `base' and - * `base + maxsize'. Some (not all) hardware errors are detected: - * - short between address lines - * - short between data lines - */ -#if 0 -static long int dram_size (long int mamr_value, long int *base, - long int maxsize) +int misc_init_r(void) { volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - volatile long int *addr; - ulong cnt, val; - ulong save[32]; /* to make test non-destructive */ - unsigned char i = 0; - - memctl->memc_mamr = mamr_value; - - for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) { - addr = base + cnt; /* pointer arith! */ - - save[i++] = *addr; - *addr = ~cnt; - } - - /* write 0 to base address */ - addr = base; - save[i] = *addr; - *addr = 0; - - /* check at base address */ - if ((val = *addr) != 0) { - *addr = save[i]; - return (0); - } - - for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) { - addr = base + cnt; /* pointer arith! */ - - val = *addr; - *addr = save[--i]; - - if (val != (~cnt)) { - return (cnt * sizeof (long)); - } - } - return (maxsize); -} -#endif -int misc_init_r (void) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; #ifdef CONFIG_IDE_LED /* Configure PA8 as output port */ - immap->im_ioport.iop_padir |= 0x80; - immap->im_ioport.iop_paodr |= 0x80; - immap->im_ioport.iop_papar &= ~0x80; - immap->im_ioport.iop_padat |= 0x80; /* turn it off */ -#endif -#ifdef KUP4X_USB - usb_init_kup4x (); + setbits_be16(&immap->im_ioport.iop_padir, PA_8); + setbits_be16(&immap->im_ioport.iop_paodr, PA_8); + clrbits_be16(&immap->im_ioport.iop_papar, PA_8); + setbits_be16(&immap->im_ioport.iop_padat, PA_8); /* turn it off */ #endif load_sernum_ethaddr(); - setenv ("hw", "4x"); - poweron_key (); - return (0); + setenv("hw", "4x"); + poweron_key(); + return 0; } |