On Tue, Apr 19, 2022 at 08:56:02PM +0530, Aswath Govindraju wrote:
Currently, in case of arm64 bootloader and U-Boot the stack pointer is initialized at an offset of NON_SECURE_MSRAM_SIZE from arm64 SPL's text base address. After jumping to arm64, execution is done out of DDR. Therefore, having an offset corresponding to the size of MSRAM does not have any significance.
Instead, initialize the stack pointer after an offset of 4MB from the SPL text base address. This helps in allocating larger memory for stack.
┌────────────────────┐0x80080000 │ │ │ arm64 SPL │ ├────────────────────┤ │ ▲ │ │ │ │ │ STACK │ ├────────────────────┤0x80480000 │ Memory for Load │ │ Buffer Allocation │ ├────────────────────┤0x80800000 │ │ │ U-Boot Image │ │ │ └────────────────────┘
Signed-off-by: Aswath Govindraju a-govindraju@ti.com
Applied to u-boot/master, thanks!