diff options
author | wdenk <wdenk> | 2004-01-07 01:38:14 +0300 |
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committer | wdenk <wdenk> | 2004-01-07 01:38:14 +0300 |
commit | c83bf6a2d00ef846c1fb2b0c60540f03ef203125 (patch) | |
tree | e410334c86d491dbbec765a5765eef9cccd3135a /board/esteem192e/esteem192e.c | |
parent | b299e41a0d34bf96202d9bbb72739bdd9414b0cc (diff) | |
download | u-boot-c83bf6a2d00ef846c1fb2b0c60540f03ef203125.tar.xz |
Add a common get_ram_size() function and modify the the
board-specific files to invoke that common implementation.
Diffstat (limited to 'board/esteem192e/esteem192e.c')
-rw-r--r-- | board/esteem192e/esteem192e.c | 321 |
1 files changed, 124 insertions, 197 deletions
diff --git a/board/esteem192e/esteem192e.c b/board/esteem192e/esteem192e.c index 986964b61c..f080d6731c 100644 --- a/board/esteem192e/esteem192e.c +++ b/board/esteem192e/esteem192e.c @@ -30,20 +30,15 @@ /* ------------------------------------------------------------------------- */ -static long int dram_size ( long int *base, long int maxsize); - -/* ------------------------------------------------------------------------- */ - #define _NOT_USED_ 0xFFFFFFFF -const uint sdram_table[] = -{ +const uint sdram_table[] = { /* * Single Read. (Offset 0 in UPMA RAM) * * active, NOP, read, precharge, NOP */ 0x0F27CC04, 0x0EAECC04, 0x00B98C04, 0x00F74C00, - 0x11FFCC05, /* last */ + 0x11FFCC05, /* last */ /* * SDRAM Initialization (offset 5 in UPMA RAM) * @@ -52,42 +47,42 @@ const uint sdram_table[] = * sequence, which is executed by a RUN command. * NOP, Program */ - 0x0F0A8C34, 0x1F354C37, /* last */ + 0x0F0A8C34, 0x1F354C37, /* last */ - _NOT_USED_, /* Not used */ + _NOT_USED_, /* Not used */ /* * Burst Read. (Offset 8 in UPMA RAM) * active, NOP, read, NOP, NOP, NOP, NOP, NOP */ 0x0F37CC04, 0x0EFECC04, 0x00FDCC04, 0x00FFCC00, - 0x00FFCC00, 0x01FFCC00, 0x0FFFCC00, 0x1FFFCC05, /* last */ + 0x00FFCC00, 0x01FFCC00, 0x0FFFCC00, 0x1FFFCC05, /* last */ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, /* * Single Write. (Offset 18 in UPMA RAM) * active, NOP, write, NOP, precharge, NOP */ 0x0F27CC04, 0x0EAE8C00, 0x01BD4C04, 0x0FFB8C04, - 0x0FF74C04, 0x1FFFCC05, /* last */ + 0x0FF74C04, 0x1FFFCC05, /* last */ _NOT_USED_, _NOT_USED_, /* * Burst Write. (Offset 20 in UPMA RAM) * active, NOP, write, NOP, NOP, NOP, NOP, NOP */ 0x0F37CC04, 0x0EFE8C00, 0x00FD4C00, 0x00FFCC00, - 0x00FFCC00, 0x01FFCC04, 0x0FFFCC04, 0x1FFFCC05, /* last */ + 0x00FFCC00, 0x01FFCC04, 0x0FFFCC04, 0x1FFFCC05, /* last */ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, /* * Refresh (Offset 30 in UPMA RAM) * precharge, NOP, auto_ref, NOP, NOP, NOP */ 0x0FF74C34, 0x0FFACCB4, 0x0FF5CC34, 0x0FFFCC34, - 0x0FFFCCB4, 0x1FFFCC35, /* last */ - _NOT_USED_, _NOT_USED_, + 0x0FFFCCB4, 0x1FFFCC35, /* last */ + _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, /* * Exception. (Offset 3c in UPMA RAM) */ - 0x0FFB8C00, 0x1FF74C03, /* last */ - _NOT_USED_, _NOT_USED_ + 0x0FFB8C00, 0x1FF74C03, /* last */ + _NOT_USED_, _NOT_USED_ }; /* ------------------------------------------------------------------------- */ @@ -99,8 +94,8 @@ const uint sdram_table[] = int checkboard (void) { - puts ("Board: Esteem 192E\n"); - return(0); + puts ("Board: Esteem 192E\n"); + return (0); } /* ------------------------------------------------------------------------- */ @@ -108,209 +103,141 @@ int checkboard (void) long int initdram (int board_type) { - volatile immap_t *immap = (immap_t *)CFG_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - long int size_b0, size_b1; - - /* - * Explain frequency of refresh here - */ - - memctl->memc_mptpr = 0x0200; /* divide by 32 */ - - memctl->memc_mamr = 0x18003112; /*CFG_MAMR_8COL;*/ /* 0x18005112 TODO: explain here */ - - upmconfig(UPMA, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint)); + volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + long int size_b0, size_b1; - /* - * Map cs 2 and 3 to the SDRAM banks 0 and 1 at - * preliminary addresses - these have to be modified after the - * SDRAM size has been determined. - */ - - memctl->memc_or2 = CFG_OR2_PRELIM; /* not defined yet */ - memctl->memc_br2 = CFG_BR2_PRELIM; + /* + * Explain frequency of refresh here + */ - memctl->memc_or3 = CFG_OR3_PRELIM; - memctl->memc_br3 = CFG_BR3_PRELIM; + memctl->memc_mptpr = 0x0200; /* divide by 32 */ + memctl->memc_mamr = 0x18003112; /*CFG_MAMR_8COL; *//* 0x18005112 TODO: explain here */ - /* perform SDRAM initializsation sequence */ - memctl->memc_mar = 0x00000088; + upmconfig (UPMA, (uint *) sdram_table, + sizeof (sdram_table) / sizeof (uint)); - memctl->memc_mcr = 0x80004830; /* SDRAM bank 0 execute 8 refresh */ + /* + * Map cs 2 and 3 to the SDRAM banks 0 and 1 at + * preliminary addresses - these have to be modified after the + * SDRAM size has been determined. + */ - memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */ + memctl->memc_or2 = CFG_OR2_PRELIM; /* not defined yet */ + memctl->memc_br2 = CFG_BR2_PRELIM; + memctl->memc_or3 = CFG_OR3_PRELIM; + memctl->memc_br3 = CFG_BR3_PRELIM; - memctl->memc_mcr = 0x80006830; /* SDRAM bank 1 execute 8 refresh */ - memctl->memc_mcr = 0x80006105; /* SDRAM bank 1 */ + /* perform SDRAM initializsation sequence */ + memctl->memc_mar = 0x00000088; + memctl->memc_mcr = 0x80004830; /* SDRAM bank 0 execute 8 refresh */ + memctl->memc_mcr = 0x80004105; /* SDRAM bank 0 */ + memctl->memc_mcr = 0x80006830; /* SDRAM bank 1 execute 8 refresh */ + memctl->memc_mcr = 0x80006105; /* SDRAM bank 1 */ - memctl->memc_mamr = CFG_MAMR_8COL; /* 0x18803112 start refresh timer TODO: explain here */ + memctl->memc_mamr = CFG_MAMR_8COL; /* 0x18803112 start refresh timer TODO: explain here */ /* printf ("banks 0 and 1 are programed\n"); */ - /* - * Check Bank 0 Memory Size for re-configuration - * - */ - - size_b0 = dram_size ((ulong *)SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE); - - size_b1 = dram_size ((ulong *)SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE); - - - printf ("\nbank 0 size %lu\nbank 1 size %lu\n",size_b0,size_b1); + /* + * Check Bank 0 Memory Size for re-configuration + * + */ + size_b0 = get_ram_size ((ulong *) SDRAM_BASE2_PRELIM, SDRAM_MAX_SIZE); + size_b1 = get_ram_size ((ulong *) SDRAM_BASE3_PRELIM, SDRAM_MAX_SIZE); + printf ("\nbank 0 size %lu\nbank 1 size %lu\n", size_b0, size_b1); /* printf ("bank 1 size %u\n",size_b1); */ - if(size_b1 == 0) { - - /* - * Adjust refresh rate if bank 0 isn't stuffed - */ - - memctl->memc_mptpr = 0x0400; /* divide by 64 */ - memctl->memc_br3 &= 0x0FFFFFFFE; - - /* - * Adjust OR2 for size of bank 0 - */ - memctl->memc_or2 |= 7 * size_b0; - - } - - else { - - if(size_b0 < size_b1) { - memctl->memc_br2 &= 0x00007FFE; - memctl->memc_br3 &= 0x00007FFF; - - /* - * Adjust OR3 for size of bank 1 - */ - memctl->memc_or3 |= 15 * size_b1; - - /* - * Adjust OR2 for size of bank 0 - */ - memctl->memc_or2 |= 15 * size_b0; - - memctl->memc_br2 += (size_b1 + 1); - - } - else { - - memctl->memc_br3 &= 0x00007FFE; - - - /* - * Adjust OR2 for size of bank 0 - */ - memctl->memc_or2 |= 15 * size_b0; - - /* - * Adjust OR3 for size of bank 1 - */ - memctl->memc_or3 |= 15 * size_b1; - - memctl->memc_br3 += (size_b0 + 1); - - - } - } - - -/* before leaving set all unused i/o pins to outputs */ - -/* - * --*Unused Pin List*-- - * - * group/port bit number - * IP_B 0,1,3,4,5 Taken care of in pcmcia-cs-x.x.xx - * PA 5,7,8,9,14,15 - * PB 22,23,31 - * PC 4,5,6,7,10,11,12,13,14,15 - * PD 5,6,7 - * - */ - -/* - * --*Pin Used for I/O List*-- - * - * port input bit number output bit number either - * PB 18,26,27 - * PD 3,4 8,9,10,11,12,13,14,15 - * - */ - - - immap->im_ioport.iop_papar &= ~0x05C3; /* set pins as io */ - immap->im_ioport.iop_padir |= 0x05C3; /* set pins as output */ - immap->im_ioport.iop_paodr &= 0x0008; /* config pins 9 & 14 as normal outputs */ - immap->im_ioport.iop_padat |= 0x05C3; /* set unused pins as high */ - - immap->im_cpm.cp_pbpar &= ~0x00001331; /* set unused port b pins as io */ - immap->im_cpm.cp_pbdir |= 0x00001331; /* set unused port b pins as output */ - immap->im_cpm.cp_pbodr &= ~0x00001331; /* config bits 18,22,23,26,27 & 31 as normal outputs */ - immap->im_cpm.cp_pbdat |= 0x00001331; /* set T/E LED, /NV_CS, & /POWER_ADJ_CS and the rest to a high */ - - immap->im_ioport.iop_pcpar &= ~0x0F3F; /* set unused port c pins as io */ - immap->im_ioport.iop_pcdir |= 0x0F3F; /* set unused port c pins as output */ - immap->im_ioport.iop_pcso &= ~0x0F3F; /* clear special purpose bit for unused port c pins for clarity */ - immap->im_ioport.iop_pcdat |= 0x0F3F; /* set unused port c pins high*/ - - immap->im_ioport.iop_pdpar &= 0xE000; /* set pins as io */ - immap->im_ioport.iop_pddir &= 0xE000; /* set bit 3 & 4 as inputs */ - immap->im_ioport.iop_pddir |= 0x07FF; /* set bits 5 - 15 as outputs */ - immap->im_ioport.iop_pddat = 0x0055; /* set alternating pattern on test port */ - - - return (size_b0 + size_b1); -} - -/* ------------------------------------------------------------------------- */ - -/* - * 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 - */ - -static long int dram_size ( long int *base, long int maxsize) -{ + if (size_b1 == 0) { + /* + * Adjust refresh rate if bank 0 isn't stuffed + */ + memctl->memc_mptpr = 0x0400; /* divide by 64 */ + memctl->memc_br3 &= 0x0FFFFFFFE; + + /* + * Adjust OR2 for size of bank 0 + */ + memctl->memc_or2 |= 7 * size_b0; + } else { + if (size_b0 < size_b1) { + memctl->memc_br2 &= 0x00007FFE; + memctl->memc_br3 &= 0x00007FFF; + + /* + * Adjust OR3 for size of bank 1 + */ + memctl->memc_or3 |= 15 * size_b1; + + /* + * Adjust OR2 for size of bank 0 + */ + memctl->memc_or2 |= 15 * size_b0; + memctl->memc_br2 += (size_b1 + 1); + } else { + memctl->memc_br3 &= 0x00007FFE; + + /* + * Adjust OR2 for size of bank 0 + */ + memctl->memc_or2 |= 15 * size_b0; + + /* + * Adjust OR3 for size of bank 1 + */ + memctl->memc_or3 |= 15 * size_b1; + memctl->memc_br3 += (size_b0 + 1); + } + } - volatile long int *addr; - long int cnt, val; + /* before leaving set all unused i/o pins to outputs */ - for (cnt = maxsize/sizeof(long); cnt > 0; cnt >>= 1) { - addr = base + cnt; /* pointer arith! */ + /* + * --*Unused Pin List*-- + * + * group/port bit number + * IP_B 0,1,3,4,5 Taken care of in pcmcia-cs-x.x.xx + * PA 5,7,8,9,14,15 + * PB 22,23,31 + * PC 4,5,6,7,10,11,12,13,14,15 + * PD 5,6,7 + * + */ - *addr = ~cnt; - } + /* + * --*Pin Used for I/O List*-- + * + * port input bit number output bit number either + * PB 18,26,27 + * PD 3,4 8,9,10,11,12,13,14,15 + * + */ - /* write 0 to base address */ - addr = base; - *addr = 0; + immap->im_ioport.iop_papar &= ~0x05C3; /* set pins as io */ + immap->im_ioport.iop_padir |= 0x05C3; /* set pins as output */ + immap->im_ioport.iop_paodr &= 0x0008; /* config pins 9 & 14 as normal outputs */ + immap->im_ioport.iop_padat |= 0x05C3; /* set unused pins as high */ - /* check at base address */ - if ((val = *addr) != 0) { - return (0); - } + immap->im_cpm.cp_pbpar &= ~0x00001331; /* set unused port b pins as io */ + immap->im_cpm.cp_pbdir |= 0x00001331; /* set unused port b pins as output */ + immap->im_cpm.cp_pbodr &= ~0x00001331; /* config bits 18,22,23,26,27 & 31 as normal outputs */ + immap->im_cpm.cp_pbdat |= 0x00001331; /* set T/E LED, /NV_CS, & /POWER_ADJ_CS and the rest to a high */ - for (cnt = 1; ; cnt <<= 1) { - addr = base + cnt; /* pointer arith! */ + immap->im_ioport.iop_pcpar &= ~0x0F3F; /* set unused port c pins as io */ + immap->im_ioport.iop_pcdir |= 0x0F3F; /* set unused port c pins as output */ + immap->im_ioport.iop_pcso &= ~0x0F3F; /* clear special purpose bit for unused port c pins for clarity */ + immap->im_ioport.iop_pcdat |= 0x0F3F; /* set unused port c pins high */ - val = *addr; + immap->im_ioport.iop_pdpar &= 0xE000; /* set pins as io */ + immap->im_ioport.iop_pddir &= 0xE000; /* set bit 3 & 4 as inputs */ + immap->im_ioport.iop_pddir |= 0x07FF; /* set bits 5 - 15 as outputs */ + immap->im_ioport.iop_pddat = 0x0055; /* set alternating pattern on test port */ - if (val != (~cnt)) { - return (cnt * sizeof(long)); - } - } - /* NOTREACHED */ + return (size_b0 + size_b1); } |