Adds SPL support for the RK3368 (assuming that our TPL stage has initialised DRAM and set up the memory firewall).
Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com
Reviewed-by: Simon Glass sjg@chromium.org ---
Changes in v3: None Changes in v2: - reuses the support for configuring the boot order using the u-boot,spl-boot-order property - drops the initialisation of the debug_uart - adds pinctrl-configuration for the preloader UART
arch/arm/mach-rockchip/Makefile | 2 +- arch/arm/mach-rockchip/rk3368-board-spl.c | 98 +++++++++++++++++++++++++++++++ 2 files changed, 99 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-rockchip/rk3368-board-spl.c
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile index c5d17f9..c3ed862 100644 --- a/arch/arm/mach-rockchip/Makefile +++ b/arch/arm/mach-rockchip/Makefile @@ -18,7 +18,7 @@ obj-spl-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o obj-spl-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-spl.o obj-spl-$(CONFIG_ROCKCHIP_RK322X) += rk322x-board-spl.o obj-spl-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-spl.o -obj-spl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-spl.o +obj-spl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-spl.o spl-boot-order.o obj-spl-$(CONFIG_ROCKCHIP_RK3399) += rk3399-board-spl.o spl-boot-order.o
ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_TPL_BUILD),) diff --git a/arch/arm/mach-rockchip/rk3368-board-spl.c b/arch/arm/mach-rockchip/rk3368-board-spl.c new file mode 100644 index 0000000..691db41 --- /dev/null +++ b/arch/arm/mach-rockchip/rk3368-board-spl.c @@ -0,0 +1,98 @@ +/* + * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <debug_uart.h> +#include <dm.h> +#include <dm/pinctrl.h> +#include <ram.h> +#include <spl.h> +#include <asm/io.h> +#include <asm/arch/cru_rk3368.h> +#include <asm/arch/grf_rk3368.h> +#include <asm/arch/hardware.h> +#include <asm/arch/periph.h> +#include <asm/arch/timer.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * The ARMv8 generic timer uses the STIMER1 as its clock-source. + * Set up the STIMER1 to free-running (i.e. auto-reload) to start + * the generic timer counting (if we don't do this, udelay will not + * work and block indefinitively). + */ +static void secure_timer_init(void) +{ + struct rk_timer * const stimer1 = + (struct rk_timer * const)0xff830020; + const u32 TIMER_EN = BIT(0); + + writel(~0u, &stimer1->timer_load_count0); + writel(~0u, &stimer1->timer_load_count1); + writel(TIMER_EN, &stimer1->timer_ctrl_reg); +} + +void board_debug_uart_init(void) +{ +} + +void board_init_f(ulong dummy) +{ + struct udevice *pinctrl; + struct udevice *dev; + int ret; + + ret = spl_early_init(); + if (ret) { + debug("spl_early_init() failed: %d\n", ret); + hang(); + } + + /* Make sure the ARMv8 generic timer counts */ + secure_timer_init(); + + /* Set up our preloader console */ + ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); + if (ret) { + error("%s: pinctrl init failed: %d\n", __func__, ret); + hang(); + } + + ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART0); + if (ret) { + error("%s: failed to set up console UART\n", __func__); + hang(); + } + + preloader_console_init(); + + ret = uclass_get_device(UCLASS_RAM, 0, &dev); + if (ret) { + debug("DRAM init failed: %d\n", ret); + return; + } +} + +u32 spl_boot_mode(const u32 boot_device) +{ + return MMCSD_MODE_RAW; +} + +u32 spl_boot_device(void) +{ + return BOOT_DEVICE_MMC1; +} + +#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