rockchip: add common tpl board file
Rockchip SoCs have similar boot process, prefer to use TPL for DRAM
init and back to bootrom, and SPL as Trust ATF/U-Boot loader. TPL
common board is a basic TPL board init which can be shared for most
of SoCs to avoid copy-pase for different SoCs.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 85f88ce..2b83a68 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -223,6 +223,15 @@
SPL will return to the boot rom, which will then load the U-Boot
binary to keep going on.
+config TPL_ROCKCHIP_COMMON_BOARD
+ bool ""
+ depends on TPL
+ help
+ Rockchip SoCs have similar boot process, prefer to use TPL for DRAM
+ init and back to bootrom, and SPL as Trust ATF/U-Boot loader. TPL
+ common board is a basic TPL board init which can be shared for most
+ of SoCs to avoid copy-pase for different SoCs.
+
config ROCKCHIP_BOOT_MODE_REG
hex "Rockchip boot mode flag register address"
help
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index 9afbb05..2686e0c 100644
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -8,6 +8,7 @@
# the stack-pointer is valid before switching to the U-Boot stack).
obj-spl-$(CONFIG_ROCKCHIP_BROM_HELPER) += bootrom.o
obj-tpl-$(CONFIG_ROCKCHIP_BROM_HELPER) += bootrom.o
+obj-tpl-$(CONFIG_TPL_ROCKCHIP_COMMON_BOARD) += tpl.o
obj-tpl-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-tpl.o
obj-tpl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-tpl.o
diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c
new file mode 100644
index 0000000..0ff2a19
--- /dev/null
+++ b/arch/arm/mach-rockchip/tpl.c
@@ -0,0 +1,86 @@
+// 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 <version.h>
+#include <asm/io.h>
+#include <asm/arch-rockchip/bootrom.h>
+
+#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);
+}
+
+void board_init_f(ulong dummy)
+{
+ struct udevice *dev;
+ int ret;
+
+#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();
+ printascii("\nU-Boot TPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
+ U_BOOT_TIME ")\n");
+#endif
+ ret = spl_early_init();
+ if (ret) {
+ debug("spl_early_init() failed: %d\n", ret);
+ hang();
+ }
+
+ /* Init secure timer */
+ rockchip_stimer_init();
+ /* Init ARM arch timer in arch/arm/cpu/ */
+ timer_init();
+
+ ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+ if (ret) {
+ printf("DRAM init failed: %d\n", ret);
+ return;
+ }
+}
+
+void board_return_to_bootrom(void)
+{
+ back_to_bootrom(BROM_BOOT_NEXTSTAGE);
+}
+
+u32 spl_boot_device(void)
+{
+ return BOOT_DEVICE_BOOTROM;
+}