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>master
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/*
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* (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <common.h> |
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#include <debug_uart.h> |
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#include <dm.h> |
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#include <dm/pinctrl.h> |
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#include <ram.h> |
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#include <spl.h> |
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#include <asm/io.h> |
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#include <asm/arch/cru_rk3368.h> |
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#include <asm/arch/grf_rk3368.h> |
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#include <asm/arch/hardware.h> |
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#include <asm/arch/periph.h> |
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#include <asm/arch/timer.h> |
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DECLARE_GLOBAL_DATA_PTR; |
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/*
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* The ARMv8 generic timer uses the STIMER1 as its clock-source. |
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* Set up the STIMER1 to free-running (i.e. auto-reload) to start |
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* the generic timer counting (if we don't do this, udelay will not |
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* work and block indefinitively). |
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*/ |
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static void secure_timer_init(void) |
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{ |
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struct rk_timer * const stimer1 = |
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(struct rk_timer * const)0xff830020; |
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const u32 TIMER_EN = BIT(0); |
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writel(~0u, &stimer1->timer_load_count0); |
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writel(~0u, &stimer1->timer_load_count1); |
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writel(TIMER_EN, &stimer1->timer_ctrl_reg); |
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} |
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void board_debug_uart_init(void) |
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{ |
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} |
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void board_init_f(ulong dummy) |
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{ |
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struct udevice *pinctrl; |
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struct udevice *dev; |
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int ret; |
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ret = spl_early_init(); |
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if (ret) { |
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debug("spl_early_init() failed: %d\n", ret); |
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hang(); |
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} |
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/* Make sure the ARMv8 generic timer counts */ |
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secure_timer_init(); |
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/* Set up our preloader console */ |
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ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); |
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if (ret) { |
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error("%s: pinctrl init failed: %d\n", __func__, ret); |
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hang(); |
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} |
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ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART0); |
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if (ret) { |
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error("%s: failed to set up console UART\n", __func__); |
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hang(); |
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} |
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preloader_console_init(); |
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ret = uclass_get_device(UCLASS_RAM, 0, &dev); |
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if (ret) { |
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debug("DRAM init failed: %d\n", ret); |
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return; |
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} |
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} |
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u32 spl_boot_mode(const u32 boot_device) |
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{ |
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return MMCSD_MODE_RAW; |
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} |
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u32 spl_boot_device(void) |
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{ |
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return BOOT_DEVICE_MMC1; |
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} |
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#ifdef CONFIG_SPL_LOAD_FIT |
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int board_fit_config_name_match(const char *name) |
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{ |
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/* Just empty function now - can't decide what to choose */ |
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debug("%s: %s\n", __func__, name); |
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return 0; |
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} |
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#endif |
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