diff options
| author | Tom Rini <trini@konsulko.com> | 2025-09-30 10:47:19 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-09-30 10:47:19 -0600 |
| commit | 5b93c3ec7f9d66dc40d062a47a4a880f7d346b7a (patch) | |
| tree | f10ba825a869213ac23bb65cda4cbaffa12e7ee2 /arch/arm/mach-stm32mp/stm32mp2/cpu.c | |
| parent | 8dee93cfc50992990ea6f1871b128d464929e1f5 (diff) | |
| parent | 8a2e75e6a1ca51bbd81eef36ffb26737adec316f (diff) | |
Merge tag 'u-boot-stm32-20250930' of https://source.denx.de/u-boot/custodians/u-boot-stm
CI: https://source.denx.de/u-boot/custodians/u-boot-stm/-/pipelines/27776
- stm32mp1: Fix env_get_location()
- stm32mp2: Update register used by BL31 for boot parameter
Diffstat (limited to 'arch/arm/mach-stm32mp/stm32mp2/cpu.c')
| -rw-r--r-- | arch/arm/mach-stm32mp/stm32mp2/cpu.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/arm/mach-stm32mp/stm32mp2/cpu.c b/arch/arm/mach-stm32mp/stm32mp2/cpu.c index c3b87d7f981..e081dc605b8 100644 --- a/arch/arm/mach-stm32mp/stm32mp2/cpu.c +++ b/arch/arm/mach-stm32mp/stm32mp2/cpu.c @@ -92,13 +92,21 @@ uintptr_t get_stm32mp_bl2_dtb(void) } /* - * Save the FDT address provided by TF-A in r2 at boot time + * Save the FDT address provided by TF-A at boot time * This function is called from start.S */ -void save_boot_params(unsigned long r0, unsigned long r1, unsigned long r2, - unsigned long r3) +void save_boot_params(unsigned long x0, unsigned long x1, unsigned long x2, + unsigned long x3) { - nt_fw_dtb = r2; + /* use the ARM64 kernel booting register settings: + * x0 = physical address of device tree blob (dtb) in system RAM. + * so kernel can replace U-Boot in FIP wihtout BL31 modification + * else falback to x2 used in previous TF-A version + */ + if (x0) + nt_fw_dtb = x0; + else + nt_fw_dtb = x2; save_boot_params_ret(); } |