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verdin-imx8mm: adjust dram size in case bl32 is used
Adjust DRAM size in case BL32 secure payload is loaded (OP-TEE/Trusty), so during MMU initialization U-Boot won't touch this mem area. BL32 is loaded to the end of DRAM, bl32 payload size is read from rom_pointer[1]. This relates to the issue described in 59efa6b52b("imx8m: Fix MMU table issue for OPTEE memory"). Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
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@ -5,6 +5,7 @@
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#include <common.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/io.h>
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#include <miiphy.h>
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#include <netdev.h>
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@ -13,7 +14,11 @@ DECLARE_GLOBAL_DATA_PTR;
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
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/* rom_pointer[1] contains the size of TEE occupies */
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if (rom_pointer[1])
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gd->ram_size = PHYS_SDRAM_SIZE - rom_pointer[1];
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else
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gd->ram_size = PHYS_SDRAM_SIZE;
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return 0;
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}
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