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| author | Stefano Babic <sbabic@denx.de> | 2016-11-29 16:28:28 +0100 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-11-29 16:28:28 +0100 |
| commit | 2d221489df021393654805536be7effcb9d39702 (patch) | |
| tree | 1b636f10b4ccde42624ec665df13288408b59b7f /arch/arm/cpu/armv8/sec_firmware_asm.S | |
| parent | 45a3ad81fafe3090f7f89b458f6bd9f547a453df (diff) | |
| parent | e94793c844a40606252f2e3f6428063e057b3fd2 (diff) | |
Merge branch 'master' of git://git.denx.de/u-boot
Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu/armv8/sec_firmware_asm.S')
| -rw-r--r-- | arch/arm/cpu/armv8/sec_firmware_asm.S | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv8/sec_firmware_asm.S b/arch/arm/cpu/armv8/sec_firmware_asm.S index 0c6a46249a..1b39f1d322 100644 --- a/arch/arm/cpu/armv8/sec_firmware_asm.S +++ b/arch/arm/cpu/armv8/sec_firmware_asm.S @@ -50,4 +50,27 @@ ENTRY(_sec_firmware_support_psci_version) smc #0 ret ENDPROC(_sec_firmware_support_psci_version) + +/* + * Switch from AArch64 EL2 to AArch32 EL2 + * @param inputs: + * x0: argument, zero + * x1: machine nr + * x2: fdt address + * x3: kernel entry point + * @param outputs for secure firmware: + * x0: function id + * x1: kernel entry point + * x2: machine nr + * x3: fdt address +*/ +ENTRY(armv8_el2_to_aarch32) + mov x0, x3 + mov x3, x2 + mov x2, x1 + mov x1, x0 + ldr x0, =0xc000ff04 + smc #0 + ret +ENDPROC(armv8_el2_to_aarch32) #endif |