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authorMatthias Fuchs <matthias.fuchs@esd-electronics.com>2008-10-28 13:36:59 +0100
committerStefan Roese <sr@denx.de>2008-10-31 10:38:22 +0100
commit75183b1a7fc04206d9779d13f16e03853d7e965d (patch)
treebc1d7d9edbdc01547ec71d007a686e904cc8e86b /board/esd/pmc440
parent76b565b69f886d5ae748db65e44f464b0e70d41a (diff)
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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>
Diffstat (limited to 'board/esd/pmc440')
-rw-r--r--board/esd/pmc440/cmd_pmc440.c70
1 files changed, 37 insertions, 33 deletions
diff --git a/board/esd/pmc440/cmd_pmc440.c b/board/esd/pmc440/cmd_pmc440.c
index 38ee74e..3f0dca0 100644
--- a/board/esd/pmc440/cmd_pmc440.c
+++ b/board/esd/pmc440/cmd_pmc440.c
@@ -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);
+
+ /*
+ * *(--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 */
- /* make sure data can be accessed through PCI */
- flush_dcache_range(param, param + (pram << 10) - 1);
+ /* 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
);