Hello Marek,
Thanks for your feedback,
- ldr r0, =0x10150000
- mov r1, #0x0
- str r1, [r0]
- mov r1, #0xff
- str r1, [r0, #0x0804]
- str r1, [r0, #0x0810]
- str r1, [r0, #0x081C]
- str r1, [r0, #0x0828]
- mov pc, lr
Why not use arch_cpu_init for all this. Or even better, put the uart init into uart driver etc .. ?
Hmm... good point.
This low level code is common for some Samsung boards (Origen, Nuri, Universal_C210) and shall be put to ./board/samsung/lowlevel_init/ directory and be included to all those boards.
Another question is switching to FDT framework, which we will face sooner than later.
Those boards are also good candidates for FDT, but I don't have an idea when would be a good moment for this switch.
+int dram_init(void) +{
- gd->ram_size = \
get_ram_size((long *)PHYS_SDRAM_1,PHYS_SDRAM_1_SIZE) +
get_ram_size((long *)PHYS_SDRAM_2,PHYS_SDRAM_2_SIZE) +
get_ram_size((long *)PHYS_SDRAM_3,PHYS_SDRAM_3_SIZE) +
get_ram_size((long *)PHYS_SDRAM_4,PHYS_SDRAM_4_SIZE); +
- return 0;
+}
+void dram_init_banksize(void) +{
- gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
- gd->bd->bi_dram[0].size = get_ram_size((long
*)PHYS_SDRAM_1, \
PHYS_SDRAM_1_SIZE); +
- gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
- gd->bd->bi_dram[1].size = get_ram_size((long
*)PHYS_SDRAM_2, \
PHYS_SDRAM_2_SIZE); +
- gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
- gd->bd->bi_dram[2].size = get_ram_size((long
*)PHYS_SDRAM_3, \
PHYS_SDRAM_3_SIZE); +
- gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
- gd->bd->bi_dram[3].size = get_ram_size((long
*)PHYS_SDRAM_4, \
PHYS_SDRAM_4_SIZE); +}
The board has discontiguous memory ?
Why do you think so? The board has four banks starting from 0x40000000.
Those definitely form a continuous memory.