Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

fdt: Add fdt_fixup_nor_flash_size() to fixup NOR FLASH size in dtb

Browse source 
This function can be used to update the size in the "reg" property
of the NOR FLASH device nodes. This is necessary for boards with
non-fixed NOR FLASH sizes.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
Acked-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Stefan Roese 2009-10-21 11:59:52 +02:00
parent 76706cb86b
commit 30d45c0d3e
2 changed files with 46 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
common/fdt_support.c
View file

@ -692,3 +692,47 @@ int fdt_pci_dma_ranges(void *blob, int phb_off, struct pci_controller *hose) {
return 0;
}
#endif
#ifdef CONFIG_FDT_FIXUP_NOR_FLASH_SIZE
/*
* This function can be used to update the size in the "reg" property
* of the NOR FLASH device nodes. This is necessary for boards with
* non-fixed NOR FLASH sizes.
*/
int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size)
{
char compat[][16] = { "cfi-flash", "jedec-flash" };
int off;
int len;
struct fdt_property *prop;
u32 *reg;
int i;
for (i = 0; i < 2; i++) {
off = fdt_node_offset_by_compatible(blob, -1, compat[i]);
while (off != -FDT_ERR_NOTFOUND) {
/*
* Found one compatible node, now check if this one
* has the correct CS
*/
prop = fdt_get_property_w(blob, off, "reg", &len);
if (prop) {
reg = (u32 *)&prop->data[0];
if (reg[0] == cs) {
reg[2] = size;
fdt_setprop(blob, off, "reg", reg,
3 * sizeof(u32));
return 0;
}
}
/* Move to next compatible node */
off = fdt_node_offset_by_compatible(blob, off,
compat[i]);
}
}
return -1;
}
#endif

2
include/fdt_support.h
View file

@ -79,5 +79,7 @@ void ft_pci_setup(void *blob, bd_t *bd);
void set_working_fdt_addr(void *addr);
int fdt_resize(void *blob);
int fdt_fixup_nor_flash_size(void *blob, int cs, u32 size);
#endif /* ifdef CONFIG_OF_LIBFDT */
#endif /* ifndef __FDT_SUPPORT_H */