brain-hackers_pepepper-mirror
/
u-boot-brain
mirror of https://github.com/brain-hackers/u-boot-brain
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

fdt_support: 64bit initrd start address support 

Signed-off-by: David Feng <fenghua@phytium.com.cn>
This commit is contained in:
David Feng 2013-12-14 11:47:29 +08:00 committed by Albert ARIBAUD
parent 6e51ca4100
commit f77a606a06
1 changed files with 34 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
common/fdt_support.c
View File

@ -21,6 +21,34 @@
*/
DECLARE_GLOBAL_DATA_PTR;
/*
* Get cells len in bytes
* if #NNNN-cells property is 2 then len is 8
* otherwise len is 4
*/
static int get_cells_len(void *blob, char *nr_cells_name)
{
const fdt32_t *cell;
cell = fdt_getprop(blob, 0, nr_cells_name, NULL);
if (cell && fdt32_to_cpu(*cell) == 2)
return 8;
return 4;
}
/*
* Write a 4 or 8 byte big endian cell
*/
static void write_cell(u8 *addr, u64 val, int size)
{
int shift = (size - 1) * 8;
while (size-- > 0) {
*addr++ = (val >> shift) & 0xff;
shift -= 8;
}
}
/**
* fdt_getprop_u32_default - Find a node and return it's property or a default
*
@ -131,9 +159,9 @@ static int fdt_fixup_stdout(void *fdt, int chosenoff)
int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
{
int nodeoffset;
int nodeoffset, addr_cell_len;
int err, j, total;
fdt32_t tmp;
fdt64_t tmp;
const char *path;
uint64_t addr, size;
@ -170,9 +198,11 @@ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
return err;
}
addr_cell_len = get_cells_len(fdt, "#address-cells");
path = fdt_getprop(fdt, nodeoffset, "linux,initrd-start", NULL);
if ((path == NULL) || force) {
tmp = cpu_to_fdt32(initrd_start);
write_cell((u8 *)&tmp, initrd_start, addr_cell_len);
err = fdt_setprop(fdt, nodeoffset,
"linux,initrd-start", &tmp, sizeof(tmp));
if (err < 0) {
@ -181,7 +211,7 @@ int fdt_initrd(void *fdt, ulong initrd_start, ulong initrd_end, int force)
fdt_strerror(err));
return err;
}
tmp = cpu_to_fdt32(initrd_end);
write_cell((u8 *)&tmp, initrd_end, addr_cell_len);
err = fdt_setprop(fdt, nodeoffset,
"linux,initrd-end", &tmp, sizeof(tmp));
if (err < 0) {
@ -343,34 +373,6 @@ void do_fixup_by_compat_u32(void *fdt, const char *compat,
do_fixup_by_compat(fdt, compat, prop, &tmp, 4, create);
}
/*
* Get cells len in bytes
* if #NNNN-cells property is 2 then len is 8
* otherwise len is 4
*/
static int get_cells_len(void *blob, char *nr_cells_name)
{
const fdt32_t *cell;
cell = fdt_getprop(blob, 0, nr_cells_name, NULL);
if (cell && fdt32_to_cpu(*cell) == 2)
return 8;
return 4;
}
/*
* Write a 4 or 8 byte big endian cell
*/
static void write_cell(u8 *addr, u64 val, int size)
{
int shift = (size - 1) * 8;
while (size-- > 0) {
*addr++ = (val >> shift) & 0xff;
shift -= 8;
}
}
#ifdef CONFIG_NR_DRAM_BANKS
#define MEMORY_BANKS_MAX CONFIG_NR_DRAM_BANKS
#else