diff options
| author | Thierry Reding <treding@nvidia.com> | 2019-04-15 11:32:29 +0200 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2019-06-05 09:16:34 -0700 |
| commit | ce353babdbc478c40f884555b754c533ab8f8af5 (patch) | |
| tree | 4a60a6af6e413002432558532d330c4683cbb3e4 /arch | |
| parent | a0dbc1314c3275c3af3591fc6f4762ff3367a4fd (diff) | |
ARM: tegra: Implement cboot_save_boot_params() in C
This is easier to deal with and works just as well for this simple
function.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/cboot.c | 12 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/cboot_ll.S | 20 |
3 files changed, 13 insertions, 21 deletions
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index 41ba674edf..7165d70a60 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -20,7 +20,7 @@ obj-$(CONFIG_TEGRA_PINCTRL) += pinmux-common.o obj-$(CONFIG_TEGRA_PMC) += powergate.o obj-y += xusb-padctl-dummy.o -obj-$(CONFIG_ARM64) += arm64-mmu.o cboot_ll.o cboot.o +obj-$(CONFIG_ARM64) += arm64-mmu.o cboot.o obj-y += dt-setup.o obj-$(CONFIG_TEGRA_CLOCK_SCALING) += emc.o obj-$(CONFIG_TEGRA_GPU) += gpu.o diff --git a/arch/arm/mach-tegra/cboot.c b/arch/arm/mach-tegra/cboot.c index 3ebf7b0555..a302ca45f3 100644 --- a/arch/arm/mach-tegra/cboot.c +++ b/arch/arm/mach-tegra/cboot.c @@ -52,6 +52,18 @@ static u64 ram_top __attribute__((section(".data"))); /* The base address of the region of RAM that ends at ram_top */ static u64 region_base __attribute__((section(".data"))); +/* + * Explicitly put this in the .data section because it is written before the + * .bss section is zeroed out but it needs to persist. + */ +unsigned long cboot_boot_x0 __attribute__((section(".data"))); + +void cboot_save_boot_params(unsigned long x0, unsigned long x1, + unsigned long x2, unsigned long x3) +{ + cboot_boot_x0 = x0; +} + int cboot_dram_init(void) { unsigned int na, ns; diff --git a/arch/arm/mach-tegra/cboot_ll.S b/arch/arm/mach-tegra/cboot_ll.S deleted file mode 100644 index 4c9ddacc2b..0000000000 --- a/arch/arm/mach-tegra/cboot_ll.S +++ /dev/null @@ -1,20 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Save cboot-related boot-time CPU state - * - * (C) Copyright 2015-2016 NVIDIA Corporation <www.nvidia.com> - */ - -#include <config.h> -#include <linux/linkage.h> - -.align 8 -.globl cboot_boot_x0 -cboot_boot_x0: - .dword 0 - -ENTRY(cboot_save_boot_params) - adr x8, cboot_boot_x0 - str x0, [x8] - b save_boot_params_ret -ENDPROC(cboot_save_boot_params) |