From 49105fb7ed1c4e91409307a33363fc2a2c7aa711 Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Mon, 22 Jul 2019 19:59:12 +0800 Subject: [PATCH] rockchip: add common spl board file The common spl board file handles board_init_f() in SPL, and with board_early_init_f() and arch_cpu_init() callback, other operateion after board_init_f() should go to board specific spl_board_init(). Signed-off-by: Kever Yang --- arch/arm/mach-rockchip/Kconfig | 8 +++ arch/arm/mach-rockchip/Makefile | 1 + arch/arm/mach-rockchip/spl.c | 154 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 163 insertions(+) create mode 100644 arch/arm/mach-rockchip/spl.c diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig index 17f31e8..ac86532 100644 --- a/arch/arm/mach-rockchip/Kconfig +++ b/arch/arm/mach-rockchip/Kconfig @@ -227,6 +227,14 @@ config TPL_ROCKCHIP_BACK_TO_BROM SPL will return to the boot rom, which will then load the U-Boot binary to keep going on. +config SPL_ROCKCHIP_COMMON_BOARD + bool "Rockchip SPL common board file" + depends on SPL + help + Rockchip SoCs have similar boot process, SPL is mainly in charge of + load and boot Trust ATF/U-Boot firmware, and DRAM init if there is + no TPL for the board. + config TPL_ROCKCHIP_COMMON_BOARD bool "" depends on TPL diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile index a12b8d4..b831ec6 100644 --- a/arch/arm/mach-rockchip/Makefile +++ b/arch/arm/mach-rockchip/Makefile @@ -7,6 +7,7 @@ # inaccessible/protected memory (and the bootrom-helper assumes that # the stack-pointer is valid before switching to the U-Boot stack). obj-spl-$(CONFIG_ROCKCHIP_BROM_HELPER) += bootrom.o +obj-spl-$(CONFIG_SPL_ROCKCHIP_COMMON_BOARD) += spl.o spl-boot-order.o obj-tpl-$(CONFIG_ROCKCHIP_BROM_HELPER) += bootrom.o obj-tpl-$(CONFIG_TPL_ROCKCHIP_COMMON_BOARD) += tpl.o diff --git a/arch/arm/mach-rockchip/spl.c b/arch/arm/mach-rockchip/spl.c new file mode 100644 index 0000000..33137cc --- /dev/null +++ b/arch/arm/mach-rockchip/spl.c @@ -0,0 +1,154 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2019 Rockchip Electronics Co., Ltd + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +void board_return_to_bootrom(void) +{ + back_to_bootrom(BROM_BOOT_NEXTSTAGE); +} + +__weak const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = { +}; + +const char *board_spl_was_booted_from(void) +{ + u32 bootdevice_brom_id = readl(BROM_BOOTSOURCE_ID_ADDR); + const char *bootdevice_ofpath = NULL; + + if (bootdevice_brom_id < ARRAY_SIZE(boot_devices)) + bootdevice_ofpath = boot_devices[bootdevice_brom_id]; + + if (bootdevice_ofpath) + debug("%s: brom_bootdevice_id %x maps to '%s'\n", + __func__, bootdevice_brom_id, bootdevice_ofpath); + else + debug("%s: failed to resolve brom_bootdevice_id %x\n", + __func__, bootdevice_brom_id); + + return bootdevice_ofpath; +} + +u32 spl_boot_device(void) +{ + u32 boot_device = BOOT_DEVICE_MMC1; + +#if defined(CONFIG_TARGET_CHROMEBOOK_JERRY) || \ + defined(CONFIG_TARGET_CHROMEBIT_MICKEY) || \ + defined(CONFIG_TARGET_CHROMEBOOK_MINNIE) + return BOOT_DEVICE_SPI; +#endif + if (CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)) + return BOOT_DEVICE_BOOTROM; + + return boot_device; +} + +u32 spl_boot_mode(const u32 boot_device) +{ + return MMCSD_MODE_RAW; +} + +#if !defined(CONFIG_ROCKCHIP_RK3188) +#define TIMER_LOAD_COUNT_L 0x00 +#define TIMER_LOAD_COUNT_H 0x04 +#define TIMER_CONTROL_REG 0x10 +#define TIMER_EN 0x1 +#define TIMER_FMODE BIT(0) +#define TIMER_RMODE BIT(1) + +__weak void rockchip_stimer_init(void) +{ + /* If Timer already enabled, don't re-init it */ + u32 reg = readl(CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG); + + if (reg & TIMER_EN) + return; +#ifndef CONFIG_ARM64 + asm volatile("mcr p15, 0, %0, c14, c0, 0" + : : "r"(COUNTER_FREQUENCY)); +#endif + writel(0, CONFIG_ROCKCHIP_STIMER_BASE + TIMER_CONTROL_REG); + writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE); + writel(0xffffffff, CONFIG_ROCKCHIP_STIMER_BASE + 4); + writel(TIMER_EN | TIMER_FMODE, CONFIG_ROCKCHIP_STIMER_BASE + + TIMER_CONTROL_REG); +} +#endif + +__weak int board_early_init_f(void) +{ + return 0; +} + +__weak int arch_cpu_init(void) +{ + return 0; +} + +void board_init_f(ulong dummy) +{ + int ret; +#if !defined(CONFIG_SUPPORT_TPL) || defined(CONFIG_SPL_OS_BOOT) + struct udevice *dev; +#endif + +#ifdef CONFIG_DEBUG_UART + /* + * Debug UART can be used from here if required: + * + * debug_uart_init(); + * printch('a'); + * printhex8(0x1234); + * printascii("string"); + */ + debug_uart_init(); + debug("\nspl:debug uart enabled in %s\n", __func__); +#endif + + board_early_init_f(); + + ret = spl_early_init(); + if (ret) { + printf("spl_early_init() failed: %d\n", ret); + hang(); + } + arch_cpu_init(); +#if !defined(CONFIG_SUPPORT_TPL) || defined(CONFIG_SPL_OS_BOOT) + debug("\nspl:init dram\n"); + ret = uclass_get_device(UCLASS_RAM, 0, &dev); + if (ret) { + printf("DRAM init failed: %d\n", ret); + return; + } +#endif +#if !defined(CONFIG_ROCKCHIP_RK3188) + rockchip_stimer_init(); +#endif +#ifdef CONFIG_SYS_ARCH_TIMER + /* Init ARM arch timer in arch/arm/cpu/armv7/arch_timer.c */ + timer_init(); +#endif + preloader_console_init(); +} + +#ifdef CONFIG_SPL_LOAD_FIT +int board_fit_config_name_match(const char *name) +{ + /* Just empty function now - can't decide what to choose */ + debug("%s: %s\n", __func__, name); + + return 0; +} +#endif -- 2.7.4