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armv8/ls1043aqds: Add support for >2GB memory

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This patch also exposes the complete DDR region(s) to Linux.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Shaohui Xie 2016-01-04 11:03:44 +08:00 committed by York Sun
parent 0d3972cfcd
commit 58e4ad1dee
3 changed files with 27 additions and 4 deletions
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19
board/freescale/ls1043aqds/ddr.c
View File

@ -132,9 +132,22 @@ void dram_init_banksize(void)
* The address needs to add the offset of its bank.
*/
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[0].size = gd->ram_size;
if (gd->ram_size > CONFIG_SYS_DDR_BLOCK1_SIZE) {
gd->bd->bi_dram[0].size = CONFIG_SYS_DDR_BLOCK1_SIZE;
gd->bd->bi_dram[1].start = CONFIG_SYS_DDR_BLOCK2_BASE;
gd->bd->bi_dram[1].size = gd->ram_size -
CONFIG_SYS_DDR_BLOCK1_SIZE;
#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
gd->secure_ram = gd->bd->bi_dram[0].start + gd->secure_ram;
gd->secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
gd->secure_ram = gd->bd->bi_dram[1].start +
gd->secure_ram -
CONFIG_SYS_DDR_BLOCK1_SIZE;
gd->secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
#endif
} else {
gd->bd->bi_dram[0].size = gd->ram_size;
#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
gd->secure_ram = gd->bd->bi_dram[0].start + gd->secure_ram;
gd->secure_ram |= MEM_RESERVE_SECURE_MAINTAINED;
#endif
}
}

10
board/freescale/ls1043aqds/ls1043aqds.c
View File

@ -303,6 +303,16 @@ int board_init(void)
#ifdef CONFIG_OF_BOARD_SETUP
int ft_board_setup(void *blob, bd_t *bd)
{
u64 base[CONFIG_NR_DRAM_BANKS];
u64 size[CONFIG_NR_DRAM_BANKS];
/* fixup DT for the two DDR banks */
base[0] = gd->bd->bi_dram[0].start;
size[0] = gd->bd->bi_dram[0].size;
base[1] = gd->bd->bi_dram[1].start;
size[1] = gd->bd->bi_dram[1].size;
fdt_fixup_memory_banks(blob, base, size, 2);
ft_cpu_setup(blob, bd);
#ifdef CONFIG_SYS_DPAA_FMAN

2
include/configs/ls1043aqds.h
View File

@ -33,7 +33,7 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_DIMM_SLOTS_PER_CTLR 1
/* Physical Memory Map */
#define CONFIG_CHIP_SELECTS_PER_CTRL 4
#define CONFIG_NR_DRAM_BANKS 1
#define CONFIG_NR_DRAM_BANKS 2
#define CONFIG_DDR_SPD
#define SPD_EEPROM_ADDRESS 0x51