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Diffstat (limited to 'arch/arm/mach-rockchip/rk3399-board-spl.c')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3399-board-spl.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/arch/arm/mach-rockchip/rk3399-board-spl.c b/arch/arm/mach-rockchip/rk3399-board-spl.c deleted file mode 100644 index 7154d8e5d0..0000000000 --- a/arch/arm/mach-rockchip/rk3399-board-spl.c +++ /dev/null @@ -1,251 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * (C) Copyright 2016 Rockchip Electronics Co., Ltd - * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH - */ - -#include <common.h> -#include <debug_uart.h> -#include <dm.h> -#include <ram.h> -#include <spl.h> -#include <spl_gpio.h> -#include <syscon.h> -#include <asm/gpio.h> -#include <asm/io.h> -#include <asm/arch-rockchip/bootrom.h> -#include <asm/arch-rockchip/clock.h> -#include <asm/arch-rockchip/cru_rk3399.h> -#include <asm/arch-rockchip/grf_rk3399.h> -#include <asm/arch-rockchip/hardware.h> -#include <asm/arch-rockchip/periph.h> -#include <asm/arch-rockchip/sys_proto.h> -#include <power/regulator.h> - -void board_return_to_bootrom(void) -{ - back_to_bootrom(BROM_BOOT_NEXTSTAGE); -} - -static const char * const boot_devices[BROM_LAST_BOOTSOURCE + 1] = { - [BROM_BOOTSOURCE_EMMC] = "/sdhci@fe330000", - [BROM_BOOTSOURCE_SPINOR] = "/spi@ff1d0000", - [BROM_BOOTSOURCE_SD] = "/dwmmc@fe320000", -}; - -const char *board_spl_was_booted_from(void) -{ - u32 bootdevice_brom_id = readl(RK3399_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 (CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)) - return BOOT_DEVICE_BOOTROM; - - return boot_device; -} - -const char *spl_decode_boot_device(u32 boot_device) -{ - int i; - static const struct { - u32 boot_device; - const char *ofpath; - } spl_boot_devices_tbl[] = { - { BOOT_DEVICE_MMC1, "/dwmmc@fe320000" }, - { BOOT_DEVICE_MMC2, "/sdhci@fe330000" }, - { BOOT_DEVICE_SPI, "/spi@ff1d0000" }, - }; - - for (i = 0; i < ARRAY_SIZE(spl_boot_devices_tbl); ++i) - if (spl_boot_devices_tbl[i].boot_device == boot_device) - return spl_boot_devices_tbl[i].ofpath; - - return NULL; -} - -void spl_perform_fixups(struct spl_image_info *spl_image) -{ - void *blob = spl_image->fdt_addr; - const char *boot_ofpath; - int chosen; - - /* - * Inject the ofpath of the device the full U-Boot (or Linux in - * Falcon-mode) was booted from into the FDT, if a FDT has been - * loaded at the same time. - */ - if (!blob) - return; - - boot_ofpath = spl_decode_boot_device(spl_image->boot_device); - if (!boot_ofpath) { - pr_err("%s: could not map boot_device to ofpath\n", __func__); - return; - } - - chosen = fdt_find_or_add_subnode(blob, 0, "chosen"); - if (chosen < 0) { - pr_err("%s: could not find/create '/chosen'\n", __func__); - return; - } - fdt_setprop_string(blob, chosen, - "u-boot,spl-boot-device", boot_ofpath); -} - -__weak void rockchip_stimer_init(void) -{ -} - -void board_init_f(ulong dummy) -{ - struct udevice *dev; - struct rk3399_pmusgrf_regs *sgrf; - struct rk3399_grf_regs *grf; - int ret; - -#ifdef CONFIG_DEBUG_UART - debug_uart_init(); - -# ifdef CONFIG_TARGET_CHROMEBOOK_BOB - int sum, i; - - /* - * Add a delay and ensure that the compiler does not optimise this out. - * This is needed since the power rails tail a while to turn on, and - * we get garbage serial output otherwise. - */ - sum = 0; - for (i = 0; i < 150000; i++) - sum += i; - gru_dummy_function(sum); -#endif /* CONFIG_TARGET_CHROMEBOOK_BOB */ - - /* - * Debug UART can be used from here if required: - * - * debug_uart_init(); - * printch('a'); - * printhex8(0x1234); - * printascii("string"); - */ - debug("U-Boot SPL board init\n"); -#endif - - ret = spl_early_init(); - if (ret) { - debug("spl_early_init() failed: %d\n", ret); - hang(); - } - - /* - * Disable DDR and SRAM security regions. - * - * As we are entered from the BootROM, the region from - * 0x0 through 0xfffff (i.e. the first MB of memory) will - * be protected. This will cause issues with the DW_MMC - * driver, which tries to DMA from/to the stack (likely) - * located in this range. - */ - sgrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUSGRF); - rk_clrsetreg(&sgrf->ddr_rgn_con[16], 0x1ff, 0); - rk_clrreg(&sgrf->slv_secure_con4, 0x2000); - - /* eMMC clock generator: disable the clock multipilier */ - grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); - rk_clrreg(&grf->emmccore_con[11], 0x0ff); - - rockchip_stimer_init(); - - ret = uclass_get_device(UCLASS_RAM, 0, &dev); - if (ret) { - pr_err("DRAM init failed: %d\n", ret); - return; - } -} - -#if defined(SPL_GPIO_SUPPORT) -static void rk3399_force_power_on_reset(void) -{ - ofnode node; - struct gpio_desc sysreset_gpio; - - debug("%s: trying to force a power-on reset\n", __func__); - - node = ofnode_path("/config"); - if (!ofnode_valid(node)) { - debug("%s: no /config node?\n", __func__); - return; - } - - if (gpio_request_by_name_nodev(node, "sysreset-gpio", 0, - &sysreset_gpio, GPIOD_IS_OUT)) { - debug("%s: could not find a /config/sysreset-gpio\n", __func__); - return; - } - - dm_gpio_set_value(&sysreset_gpio, 1); -} -#endif - -void spl_board_init(void) -{ -#if defined(SPL_GPIO_SUPPORT) - struct rk3399_cru *cru = rockchip_get_cru(); - - /* - * The RK3399 resets only 'almost all logic' (see also in the TRM - * "3.9.4 Global software reset"), when issuing a software reset. - * This may cause issues during boot-up for some configurations of - * the application software stack. - * - * To work around this, we test whether the last reset reason was - * a power-on reset and (if not) issue an overtemp-reset to reset - * the entire module. - * - * While this was previously fixed by modifying the various places - * that could generate a software reset (e.g. U-Boot's sysreset - * driver, the ATF or Linux), we now have it here to ensure that - * we no longer have to track this through the various components. - */ - if (cru->glb_rst_st != 0) - rk3399_force_power_on_reset(); -#endif - -#if defined(SPL_DM_REGULATOR) - /* - * Turning the eMMC and SPI back on (if disabled via the Qseven - * BIOS_ENABLE) signal is done through a always-on regulator). - */ - if (regulators_enable_boot_on(false)) - debug("%s: Cannot enable boot on regulator\n", __func__); -#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 |