rockchip: add common spl board file

[oweals/u-boot.git] / arch / arm / mach-rockchip / spl.c

diff --git a/arch/arm/mach-rockchip/spl.c b/arch/arm/mach-rockchip/spl.c
new file mode 100644 (file)
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 <common.h>
+#include <debug_uart.h>
+#include <dm.h>
+#include <ram.h>
+#include <spl.h>
+#include <asm/arch-rockchip/bootrom.h>
+#include <asm/arch-rockchip/sdram.h>
+#include <asm/io.h>
+
+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