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rockchip: sdram: fix dram_init_banksize

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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>
This commit is contained in:
Alex Bee 2020-07-15 01:03:31 +02:00 committed by Kever Yang
parent ad415c80a5
commit 90f740a06a
1 changed files with 2 additions and 4 deletions
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6
arch/arm/mach-rockchip/sdram.c
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@ -56,16 +56,14 @@ int dram_init_banksize(void)
- 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;