From 3e1923d9cf6416a0f69aa325a8cb1b2ef41a4408 Mon Sep 17 00:00:00 2001 From: Dilan Lee Date: Fri, 27 Oct 2017 09:51:09 +0800 Subject: [PATCH] Tegra: add 'late' platform setup handler This patch adds a platform setup handler that gets called after the MMU is enabled. Platforms wanting to make use of this handler should declare 'plat_late_platform_setup' handler in their platform files, to override the default weakly defined handler. Change-Id: Ibc97a2e5a24608ddea856d0bd543a9d5876f604c Signed-off-by: Dilan Lee --- plat/nvidia/tegra/common/tegra_bl31_setup.c | 13 +++++++++++++ plat/nvidia/tegra/include/tegra_private.h | 3 ++- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/plat/nvidia/tegra/common/tegra_bl31_setup.c b/plat/nvidia/tegra/common/tegra_bl31_setup.c index 4712b8ab..908e4f2d 100644 --- a/plat/nvidia/tegra/common/tegra_bl31_setup.c +++ b/plat/nvidia/tegra/common/tegra_bl31_setup.c @@ -70,6 +70,7 @@ extern uint64_t ns_image_entrypoint; #pragma weak plat_early_platform_setup #pragma weak plat_get_bl31_params #pragma weak plat_get_bl31_plat_params +#pragma weak plat_late_platform_setup void plat_early_platform_setup(void) { @@ -86,6 +87,11 @@ plat_params_from_bl2_t *plat_get_bl31_plat_params(void) return NULL; } +void plat_late_platform_setup(void) +{ + ; /* do nothing */ +} + /******************************************************************************* * Return a pointer to the 'entry_point_info' structure of the next image for * security state specified. BL33 corresponds to the non-secure image type @@ -328,6 +334,13 @@ void bl31_platform_setup(void) */ tegra_memctrl_tzram_setup(TEGRA_TZRAM_BASE, TEGRA_TZRAM_SIZE); + /* + * Late setup handler to allow platforms to performs additional + * functionality. + * This handler gets called with MMU enabled. + */ + plat_late_platform_setup(); + /* * Add timestamp for platform setup exit. */ diff --git a/plat/nvidia/tegra/include/tegra_private.h b/plat/nvidia/tegra/include/tegra_private.h index f55f5df6..68b46242 100644 --- a/plat/nvidia/tegra/include/tegra_private.h +++ b/plat/nvidia/tegra/include/tegra_private.h @@ -75,6 +75,8 @@ uint32_t plat_get_console_from_id(int32_t id); void plat_gic_setup(void); struct tegra_bl31_params *plat_get_bl31_params(void); plat_params_from_bl2_t *plat_get_bl31_plat_params(void); +void plat_early_platform_setup(void); +void plat_late_platform_setup(void); /* Declarations for plat_secondary.c */ void plat_secondary_setup(void); @@ -126,7 +128,6 @@ int tegra_prepare_cpu_on_finish(unsigned long mpidr); /* Declarations for tegra_bl31_setup.c */ plat_params_from_bl2_t *bl31_get_plat_params(void); int32_t bl31_check_ns_address(uint64_t base, uint64_t size_in_bytes); -void plat_early_platform_setup(void); /* Declarations for tegra_delay_timer.c */ void tegra_delay_timer_init(void); -- 2.30.2