[PATCH 8/9] ARM: tegra: avoid touching Secure registers in reset handler
From: mirq-linux@rere.qmqm.pl (Michał Mirosław)
Date: 2017-07-20 00:29:25
Also in:
linux-tegra
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
This allows secondary CPUs to boot with Trusted Foundations firmware. Signed-off-by: Micha? Miros?aw <mirq-linux@rere.qmqm.pl> --- arch/arm/mach-tegra/reset-handler.S | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index aae7f5961563..f642032a5a08 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S@@ -143,6 +143,8 @@ ENTRY(__tegra_cpu_reset_handler) cpsid aif, 0x13 @ SVC mode, interrupts disabled tegra_get_soc_id TEGRA_APB_MISC_BASE, r6 + +#ifdef CONFIG_ARCH_ASSUME_SECURE_PLATFORM #ifdef CONFIG_ARCH_TEGRA_2x_SOC t20_check: cmp r6, #TEGRA20
@@ -172,6 +174,7 @@ t30_errata: b after_errata after_t30_check: #endif +#endif /* CONFIG_ARCH_ASSUME_SECURE_PLATFORM */ after_errata: mrc p15, 0, r10, c0, c0, 5 @ MPIDR and r10, r10, #0x3 @ R10 = CPU number
--
2.11.0