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arm64: mvebu: Replace board specific with generic memory bank decoding

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The dram_init and dram_init_banksize functions were using a board
specific implementation for decoding the memory banks from the fdt.
This change makes the dram_init* functions use a generic implementation
of decoding and populating memory bank and size data.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nathan Rossi <nathan@nathanrossi.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese 2017-05-08 08:31:30 +02:00
parent 0cc209124f
commit 780f80cd0f
1 changed files with 5 additions and 63 deletions
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68
arch/arm/mach-mvebu/arm64-common.c
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@ -46,75 +46,17 @@ const struct mbus_dram_target_info *mvebu_mbus_dram_info(void)
/* DRAM init code ... */
static const void *get_memory_reg_prop(const void *fdt, int *lenp)
int dram_init_banksize(void)
{
int offset;
offset = fdt_path_offset(fdt, "/memory");
if (offset < 0)
return NULL;
return fdt_getprop(fdt, offset, "reg", lenp);
}
int dram_init(void)
{
const void *fdt = gd->fdt_blob;
const fdt32_t *val;
int ac, sc, len;
ac = fdt_address_cells(fdt, 0);
sc = fdt_size_cells(fdt, 0);
if (ac < 0 || sc < 1 || sc > 2) {
printf("invalid address/size cells\n");
return -EINVAL;
}
val = get_memory_reg_prop(fdt, &len);
if (len / sizeof(*val) < ac + sc)
return -EINVAL;
val += ac;
gd->ram_size = fdtdec_get_number(val, sc);
debug("DRAM size = %08lx\n", (unsigned long)gd->ram_size);
fdtdec_setup_memory_banksize();
return 0;
}
int dram_init_banksize(void)
int dram_init(void)
{
const void *fdt = gd->fdt_blob;
const fdt32_t *val;
int ac, sc, cells, len, i;
val = get_memory_reg_prop(fdt, &len);
if (len < 0)
return -ENXIO;
ac = fdt_address_cells(fdt, 0);
sc = fdt_size_cells(fdt, 0);
if (ac < 1 || ac > 2 || sc < 1 || sc > 2) {
printf("invalid address/size cells\n");
return -ENXIO;
}
cells = ac + sc;
len /= sizeof(*val);
for (i = 0; i < CONFIG_NR_DRAM_BANKS && len >= cells;
i++, len -= cells) {
gd->bd->bi_dram[i].start = fdtdec_get_number(val, ac);
val += ac;
gd->bd->bi_dram[i].size = fdtdec_get_number(val, sc);
val += sc;
debug("DRAM bank %d: start = %08lx, size = %08lx\n",
i, (unsigned long)gd->bd->bi_dram[i].start,
(unsigned long)gd->bd->bi_dram[i].size);
}
if (fdtdec_setup_memory_size() != 0)
return -EINVAL;
return 0;
}