rockchip: rk3399: add tpl support

Rockchip platform suppose to use TPL(run in SRAM) as dram init and
SPL(run in DDR SDRAM) as pre-loader, so that the SPL would not be
limited by SRAM size.
This patch add rk3399-board-tpl.c and its common configs.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>

arch/arm/mach-rockchip/Kconfig

@@ -154,12 +154,28 @@ config ROCKCHIP_RK3399
 	bool "Support Rockchip RK3399"
 	select ARM64
 	select SUPPORT_SPL
+	select SUPPORT_TPL
 	select SPL
+	select TPL_NEEDS_SEPARATE_TEXT_BASE if TPL
+	select TPL_NEEDS_SEPARATE_STACK if TPL
 	select SPL_SEPARATE_BSS
 	select SPL_SERIAL_SUPPORT
 	select SPL_DRIVERS_MISC_SUPPORT
 	select BOARD_LATE_INIT
 	select ROCKCHIP_BROM_HELPER
+	imply TPL_SERIAL_SUPPORT
+	imply TPL_LIBCOMMON_SUPPORT
+	imply TPL_LIBGENERIC_SUPPORT
+	imply TPL_SYS_MALLOC_SIMPLE
+	imply TPL_BOOTROM_SUPPORT
+	imply TPL_DRIVERS_MISC_SUPPORT
+	imply TPL_OF_CONTROL
+	imply TPL_DM
+	imply TPL_REGMAP
+	imply TPL_SYSCON
+	imply TPL_RAM
+	imply TPL_CLK
+	imply TPL_TINY_MEMSET
 	help
 	  The Rockchip RK3399 is a ARM-based SoC with a dual-core Cortex-A72
 	  and quad-core Cortex-A53.
@@ -168,6 +184,22 @@ config ROCKCHIP_RK3399
 	  and video codec support. Peripherals include Gigabit Ethernet,
 	  USB2 host and OTG, SDIO, I2S, UARTs, SPI, I2C and PWMs.
 
+if ROCKCHIP_RK3399
+
+config TPL_LDSCRIPT
+	default "arch/arm/mach-rockchip/u-boot-tpl-v8.lds"
+
+config TPL_TEXT_BASE
+        default 0xff8c2000
+
+config TPL_MAX_SIZE
+        default 188416
+
+config TPL_STACK
+        default 0xff8effff
+
+endif
+
 config ROCKCHIP_RV1108
 	bool "Support Rockchip RV1108"
 	select CPU_V7A
@@ -195,7 +227,7 @@ config SPL_ROCKCHIP_BACK_TO_BROM
 
 config TPL_ROCKCHIP_BACK_TO_BROM
 	bool "TPL returns to bootrom"
-	default y if ROCKCHIP_RK3368
+	default y
 	select ROCKCHIP_BROM_HELPER
 	depends on TPL
 	help

arch/arm/mach-rockchip/Makefile

@@ -12,6 +12,7 @@ obj-tpl-$(CONFIG_ROCKCHIP_BROM_HELPER) += bootrom.o
 obj-tpl-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-tpl.o
 obj-tpl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-tpl.o
 obj-tpl-$(CONFIG_ROCKCHIP_RK322X) += rk322x-board-tpl.o
+obj-tpl-$(CONFIG_ROCKCHIP_RK3399) += rk3399-board-tpl.o
 
 obj-spl-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o
 obj-spl-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board-spl.o

arch/arm/mach-rockchip/rk3399-board-tpl.c

@@ -0,0 +1,84 @@
+// 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/io.h>
+#include <asm/arch-rockchip/bootrom.h>
+
+#define TIMER_CHN10_BASE	0xff8680a0
+#define TIMER_END_COUNT_L	0x00
+#define TIMER_END_COUNT_H	0x04
+#define TIMER_INIT_COUNT_L	0x10
+#define TIMER_INIT_COUNT_H	0x14
+#define TIMER_CONTROL_REG	0x1c
+
+#define TIMER_EN	0x1
+#define	TIMER_FMODE	(0 << 1)
+#define	TIMER_RMODE	(1 << 1)
+
+void secure_timer_init(void)
+{
+	writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_L);
+	writel(0xffffffff, TIMER_CHN10_BASE + TIMER_END_COUNT_H);
+	writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_L);
+	writel(0, TIMER_CHN10_BASE + TIMER_INIT_COUNT_H);
+	writel(TIMER_EN | TIMER_FMODE, TIMER_CHN10_BASE + TIMER_CONTROL_REG);
+}
+
+void board_init_f(ulong dummy)
+{
+	struct udevice *dev;
+	int ret;
+
+#ifdef CONFIG_DEBUG_UART
+	debug_uart_init();
+	/*
+	 * Debug UART can be used from here if required:
+	 *
+	 * debug_uart_init();
+	 * printch('a');
+	 * printhex8(0x1234);
+	 * printascii("string");
+	 */
+	printascii("U-Boot TPL board init\n");
+#endif
+	ret = spl_early_init();
+	if (ret) {
+		debug("spl_early_init() failed: %d\n", ret);
+		hang();
+	}
+
+	secure_timer_init();
+
+	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+	if (ret) {
+		pr_err("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;
+}
+
+#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

include/configs/rk3399_common.h

@@ -18,11 +18,19 @@
 
 #define CONFIG_SYS_INIT_SP_ADDR		0x00300000
 #define CONFIG_SYS_LOAD_ADDR		0x00800800
+
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_TPL_BOOTROM_SUPPORT)
+#define CONFIG_SPL_STACK		0x00400000
+#define CONFIG_SPL_MAX_SIZE             0x100000
+#define CONFIG_SPL_BSS_START_ADDR	0x00400000
+#define CONFIG_SPL_BSS_MAX_SIZE         0x2000
+#else
 #define CONFIG_SPL_STACK		0xff8effff
 #define CONFIG_SPL_MAX_SIZE		0x30000 - 0x2000
 /*  BSS setup */
 #define CONFIG_SPL_BSS_START_ADDR       0xff8e0000
 #define CONFIG_SPL_BSS_MAX_SIZE         0x10000
+#endif
 
 #define CONFIG_SYS_BOOTM_LEN	(64 << 20)	/* 64M */