rockchip: sdram: fix dram_init_banksize
Currently 2.5 GB is calculated as DRAM size for a 1 GB RK322x board
if CONFIG_SPL_OPTEE is set. This is troublesome when booting a
linux kernel since this size will be injected in FDT of the kernel.
gd->bd->bi_dram[0].start (which is basically CONFIG_SYS_SDRAM_BASE)
must not be taken into consideration for calculation of second bank
size, since this offset is already included in calculation of "top".
After applying this patch 992 MB (1024 MB - 32 MB reserved for
optee-os) is correctly calculated and has also been verified on
2 GB boards.
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/sdram.c b/arch/arm/mach-rockchip/sdram.c
index 24fe6cc..4c637b7 100644
--- a/arch/arm/mach-rockchip/sdram.c
+++ b/arch/arm/mach-rockchip/sdram.c
@@ -56,16 +56,14 @@
- CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[1].start = tos_parameter->tee_mem.phy_addr +
tos_parameter->tee_mem.size;
- gd->bd->bi_dram[1].size = gd->bd->bi_dram[0].start
- + top - gd->bd->bi_dram[1].start;
+ gd->bd->bi_dram[1].size = top - gd->bd->bi_dram[1].start;
} else {
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
gd->bd->bi_dram[0].size = 0x8400000;
/* Reserve 32M for OPTEE with TA */
gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE
+ gd->bd->bi_dram[0].size + 0x2000000;
- gd->bd->bi_dram[1].size = gd->bd->bi_dram[0].start
- + top - gd->bd->bi_dram[1].start;
+ gd->bd->bi_dram[1].size = top - gd->bd->bi_dram[1].start;
}
#else
gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;