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ppc4xx: Fix PMC440 BSP commands 

This patch fixes the PMC440 BSP commands painit and selfreset

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Matthias Fuchs 2008-10-28 13:36:59 +01:00 committed by Stefan Roese
parent 76b565b69f
commit 75183b1a7f
1 changed files with 37 additions and 33 deletions
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70
board/esd/pmc440/cmd_pmc440.c
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@ -26,6 +26,9 @@
#include <asm/io.h>
#include <asm/cache.h>
#include <asm/processor.h>
#if defined(CONFIG_LOGBUFFER)
#include <logbuff.h>
#endif
#include "pmc440.h"
@ -343,14 +346,11 @@ extern env_t *env_ptr;
int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
u32 memsize;
u32 pram, env_base;
u32 pram, nextbase, base;
char *v;
u32 param;
ulong *lptr;
memsize = gd->bd->bi_memsize;
v = getenv("pram");
if (v)
pram = simple_strtoul(v, NULL, 10);
@ -359,21 +359,42 @@ int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
return 1;
}
param = memsize - (pram << 10);
base = gd->bd->bi_memsize;
#if defined(CONFIG_LOGBUFFER)
base -= LOGBUFF_LEN + LOGBUFF_OVERHEAD;
#endif
/*
* gd->bd->bi_memsize == physical ram size - CFG_MEM_TOP_HIDE
*/
param = base - (pram << 10);
printf("PARAM: @%08x\n", param);
debug("memsize=0x%08x, base=0x%08x\n", gd->bd->bi_memsize, base);
/* clear entire PA ram */
memset((void*)param, 0, (pram << 10));
env_base = memsize - 4096 - ((CONFIG_ENV_SIZE + 4096) & ~(4096-1));
memcpy((void*)env_base, env_ptr, CONFIG_ENV_SIZE);
lptr = (ulong*)memsize;
*(--lptr) = CONFIG_ENV_SIZE;
*(--lptr) = memsize - env_base;
*(--lptr) = crc32(0, (void*)(memsize - 0x08), 0x08);
*(--lptr) = 0;
/* reserve 4k for pointer field */
nextbase = base - 4096;
lptr = (ulong*)(base);
/* make sure data can be accessed through PCI */
flush_dcache_range(param, param + (pram << 10) - 1);
/*
* *(--lptr) = item_size;
* *(--lptr) = base - item_base = distance from field top;
*/
/* env is first (4k aligned) */
nextbase -= ((CONFIG_ENV_SIZE + 4096 - 1) & ~(4096 - 1));
memcpy((void*)nextbase, env_ptr, CONFIG_ENV_SIZE);
*(--lptr) = CONFIG_ENV_SIZE; /* size */
*(--lptr) = base - nextbase; /* offset | type=0 */
/* free section */
*(--lptr) = nextbase - param; /* size */
*(--lptr) = (base - param) | 126; /* offset | type=126 */
/* terminate pointer field */
*(--lptr) = crc32(0, (void*)(base - 0x10), 0x10);
*(--lptr) = 0; /* offset=0 -> terminator */
return 0;
}
U_BOOT_CMD(
@ -385,28 +406,11 @@ U_BOOT_CMD(
int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
if (argc > 1) {
if (argv[1][0] == '0') {
/* assert */
printf("self-reset# asserted\n");
out_be32((void*)GPIO0_TCR,
in_be32((void*)GPIO0_TCR) | GPIO0_SELF_RST);
} else {
/* deassert */
printf("self-reset# deasserted\n");
out_be32((void*)GPIO0_TCR,
in_be32((void*)GPIO0_TCR) & ~GPIO0_SELF_RST);
}
} else {
printf("self-reset# is %s\n",
in_be32((void*)GPIO0_TCR) & GPIO0_SELF_RST ?
"active" : "inactive");
}
in_be32((void*)CONFIG_SYS_RESET_BASE);
return 0;
}
U_BOOT_CMD(
selfreset, 2, 1, do_selfreset,
selfreset, 1, 1, do_selfreset,
"selfreset- assert self-reset# signal\n",
NULL
);