mirror of
https://github.com/AsahiLinux/u-boot
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fbbd38001f
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>
98 lines
2 KiB
C
98 lines
2 KiB
C
/*
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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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