rockchip: rk3288: Migrate to use common spl board file

rk3288 has similar boot flow in SPL with other Rockchip SoCs,
migrate to use common spl board file.

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 ef9d6e1..3497920 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -76,6 +76,7 @@
 	select SUPPORT_SPL
 	select SPL
 	select SUPPORT_TPL
+	imply SPL_ROCKCHIP_COMMON_BOARD
 	imply TPL_CLK
 	imply TPL_DM
 	imply TPL_DRIVERS_MISC_SUPPORT
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index e58da5c..808ca43 100644
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -12,7 +12,6 @@
 obj-tpl-$(CONFIG_TPL_ROCKCHIP_COMMON_BOARD) += tpl.o
 
 obj-spl-$(CONFIG_ROCKCHIP_RK3036) += rk3036-board-spl.o
-obj-spl-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board-spl.o spl-boot-order.o
 obj-spl-$(CONFIG_ROCKCHIP_RK3328) += rk3328-board-spl.o
 obj-spl-$(CONFIG_ROCKCHIP_RK3368) += rk3368-board-spl.o spl-boot-order.o
 obj-spl-$(CONFIG_ROCKCHIP_RK3399) += rk3399-board-spl.o spl-boot-order.o
diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
deleted file mode 100644
index 97853cc..0000000
--- a/arch/arm/mach-rockchip/rk3288-board-spl.c
+++ /dev/null
@@ -1,158 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * (C) Copyright 2015 Google, Inc
- */
-
-#include <common.h>
-#include <debug_uart.h>
-#include <dm.h>
-#include <fdtdec.h>
-#include <i2c.h>
-#include <led.h>
-#include <malloc.h>
-#include <ram.h>
-#include <spl.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/hardware.h>
-#include <asm/arch-rockchip/periph.h>
-#include <asm/arch-rockchip/pmu_rk3288.h>
-#include <asm/arch-rockchip/sdram.h>
-#include <asm/arch-rockchip/sdram_common.h>
-#include <asm/arch-rockchip/sys_proto.h>
-#include <dm/root.h>
-#include <dm/test.h>
-#include <dm/util.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-void board_return_to_bootrom(void)
-{
-	back_to_bootrom(BROM_BOOT_NEXTSTAGE);
-}
-
-u32 spl_boot_device(void)
-{
-#if !CONFIG_IS_ENABLED(OF_PLATDATA)
-	const void *blob = gd->fdt_blob;
-	struct udevice *dev;
-	const char *bootdev;
-	int node;
-	int ret;
-
-	bootdev = fdtdec_get_config_string(blob, "u-boot,boot0");
-	debug("Boot device %s\n", bootdev);
-	if (!bootdev)
-		goto fallback;
-
-	node = fdt_path_offset(blob, bootdev);
-	if (node < 0) {
-		debug("node=%d\n", node);
-		goto fallback;
-	}
-	ret = device_get_global_by_ofnode(offset_to_ofnode(node), &dev);
-	if (ret) {
-		debug("device at node %s/%d not found: %d\n", bootdev, node,
-		      ret);
-		goto fallback;
-	}
-	debug("Found device %s\n", dev->name);
-	switch (device_get_uclass_id(dev)) {
-	case UCLASS_SPI_FLASH:
-		return BOOT_DEVICE_SPI;
-	case UCLASS_MMC:
-		return BOOT_DEVICE_MMC1;
-	default:
-		debug("Booting from device uclass '%s' not supported\n",
-		      dev_get_uclass_name(dev));
-	}
-
-fallback:
-#elif defined(CONFIG_TARGET_CHROMEBOOK_JERRY) || \
-		defined(CONFIG_TARGET_CHROMEBIT_MICKEY) || \
-		defined(CONFIG_TARGET_CHROMEBOOK_MINNIE) || \
-		defined(CONFIG_TARGET_CHROMEBOOK_SPEEDY)
-	return BOOT_DEVICE_SPI;
-#endif
-	return BOOT_DEVICE_MMC1;
-}
-
-__weak int arch_cpu_init(void)
-{
-	return 0;
-}
-
-#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)
-
-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;
-
-	asm volatile("mcr p15, 0, %0, c14, c0, 0"
-		     : : "r"(COUNTER_FREQUENCY));
-
-	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();
-	debug("\nspl:debug uart enabled in %s\n", __func__);
-#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/armv7/arch_timer.c */
-	timer_init();
-
-	arch_cpu_init();
-
-	preloader_console_init();
-
-	ret = rockchip_get_clk(&dev);
-	if (ret) {
-		debug("CLK init failed: %d\n", ret);
-		return;
-	}
-
-#if !defined(CONFIG_SUPPORT_TPL)
-	debug("\nspl:init dram\n");
-	ret = uclass_get_device(UCLASS_RAM, 0, &dev);
-	if (ret) {
-		debug("DRAM init failed: %d\n", ret);
-		return;
-	}
-#endif
-}