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| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-07-04 11:02:14 +0200 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-08-13 17:12:21 +0200 |
| commit | c3be6190f97c1232e2e0a388586922619ec28239 (patch) | |
| tree | db3b468979b1deefb9c3d9a28ebba1b22a59d487 /arch/arm/lib | |
| parent | e6a05862776debf919bb857f8ff1155e878da128 (diff) | |
armv8: spl: Support separate stack for TPL
To allow a TPL and SPL to run from different addresses/memories, we
need to split setup of the TPL and SPL stacks. To do so, we introduce
CONFIG_TPL_STACK (not listed in Kconfig) which can be used to override
the initial stack pointer for TPL.
To provide backward compatibility for existing boards, this is added
as an optional configuration item and the normal search order (i.e.
SPL_STACK, then SYS_STACK) apply if not defined.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/crt0_64.S | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S index 57e728f9f2..177b5bf31d 100644 --- a/arch/arm/lib/crt0_64.S +++ b/arch/arm/lib/crt0_64.S @@ -69,7 +69,9 @@ ENTRY(_main) /* * Set up initial C runtime environment and call board_init_f(0). */ -#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK) +#if defined(CONFIG_TPL_BUILD) && defined(CONFIG_TPL_STACK) + ldr x0, =(CONFIG_TPL_STACK) +#elif defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK) ldr x0, =(CONFIG_SPL_STACK) #else ldr x0, =(CONFIG_SYS_INIT_SP_ADDR) |