armv8/ls1043aqds: Add support for >2GB memory
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>
diff --git a/board/freescale/ls1043aqds/ddr.c b/board/freescale/ls1043aqds/ddr.c
index 42d9068..3d3c533 100644
--- a/board/freescale/ls1043aqds/ddr.c
+++ b/board/freescale/ls1043aqds/ddr.c
@@ -132,9 +132,22 @@
* 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
+ }
}