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

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>

diff --git a/arch/arm/mach-mvebu/arm64-common.c b/arch/arm/mach-mvebu/arm64-common.c
index c2c176e3d44f5274dc81c31c87ee7bdf01895d30..69cb21d0525b13d673f6c6fe7787d733282b39af 100644 (file)
--- a/arch/arm/mach-mvebu/arm64-common.c
+++ b/arch/arm/mach-mvebu/arm64-common.c
@@ -46,76 +46,18 @@ 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;
+       fdtdec_setup_memory_banksize();
 
-       return fdt_getprop(fdt, offset, "reg", lenp);
+       return 0;
 }
 
 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)
+       if (fdtdec_setup_memory_size() != 0)
                return -EINVAL;
 
-       val += ac;
-
-       gd->ram_size = fdtdec_get_number(val, sc);
-
-       debug("DRAM size = %08lx\n", (unsigned long)gd->ram_size);
-
-       return 0;
-}
-
-int dram_init_banksize(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);
-       }
-
        return 0;
 }