leandrof/u-boot
1
0
Fork 1
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ppc4xx: Correctly setup ranges property in ebc node

Browse Source 
Previously only the NOR flash mapping was written into the ranges
property of the ebc node. This patch now writes all enabled chip
select areas into the ranges property.

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese
2008-10-13 10:45:14 +02:00
parent d7b26d5832
commit 43cbce69d4
2 changed files with 59 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
cpu/ppc4xx/fdt.c
View File

@@ -37,29 +37,40 @@ DECLARE_GLOBAL_DATA_PTR;
void __ft_board_setup(void *blob, bd_t *bd)
{
u32 val[4];
int rc;
int i;
u32 bxcr;
u32 ranges[EBC_NUM_BANKS * 4];
u32 *p = ranges;
char *ebc_path = "/plb/opb/ebc";
ft_cpu_setup(blob, bd);
/* Fixup NOR mapping */
val[0] = 0; /* chip select number */
val[1] = 0; /* always 0 */
val[2] = gd->bd->bi_flashstart;
val[3] = gd->bd->bi_flashsize;
if (fdt_path_offset(blob, "/plb/opb/ebc") >= 0) {
rc = fdt_find_and_setprop(blob, "/plb/opb/ebc", "ranges",
val, sizeof(val), 1);
} else {
/*
* Some 405 PPC's have EBC as direct PLB child in the dts
*/
rc = fdt_find_and_setprop(blob, "/plb/ebc", "ranges",
val, sizeof(val), 1);
/*
* Read 4xx EBC bus bridge registers to get mappings of the
* peripheral banks into the OPB/PLB address space
*/
for (i = 0; i < EBC_NUM_BANKS; i++) {
mtdcr(ebccfga, EBC_BXCR(i));
bxcr = mfdcr(ebccfgd);
if ((bxcr & EBC_BXCR_BU_MASK) != EBC_BXCR_BU_NONE) {
*p++ = i;
*p++ = 0;
*p++ = bxcr & EBC_BXCR_BAS_MASK;
*p++ = EBC_BXCR_BANK_SIZE(bxcr);
}
}
if (rc)
printf("Unable to update property NOR mapping, err=%s\n",
/* Some 405 PPC's have EBC as direct PLB child in the dts */
if (fdt_path_offset(blob, "/plb/opb/ebc") < 0)
strcpy(ebc_path, "/plb/ebc");
rc = fdt_find_and_setprop(blob, ebc_path, "ranges", ranges,
(p - ranges) * sizeof(u32), 1);
if (rc) {
printf("Unable to update property EBC mappings, err=%s\n",
fdt_strerror(rc));
}
}
void ft_board_setup(void *blob, bd_t *bd) __attribute__((weak, alias("__ft_board_setup")));