rockchip: rk322x: Migrate to use common board file

Use common board file for board_init() and board_late_init(),
for Rockchip SoCs have very similar process.
Signed-off-by: NKever Yang <kever.yang@rock-chips.com>

arch/arm/mach-rockchip/Kconfig

@@ -60,6 +60,7 @@ config ROCKCHIP_RK322X
 	select TPL_NEEDS_SEPARATE_TEXT_BASE if SPL
 	select TPL_NEEDS_SEPARATE_STACK if TPL
 	select SPL_DRIVERS_MISC_SUPPORT
+	imply ROCKCHIP_COMMON_BOARD
 	imply SPL_SERIAL_SUPPORT
 	imply SPL_ROCKCHIP_COMMON_BOARD
 	imply TPL_SERIAL_SUPPORT

arch/arm/mach-rockchip/Makefile

@@ -23,7 +23,6 @@ obj-y += boot_mode.o
 obj-$(CONFIG_ROCKCHIP_COMMON_BOARD) += board.o
 
 obj-$(CONFIG_ROCKCHIP_RK3188) += rk3188-board.o
-obj-$(CONFIG_ROCKCHIP_RK322X) += rk322x-board.o
 obj-$(CONFIG_ROCKCHIP_RK3288) += rk3288-board.o
 obj-$(CONFIG_ROCKCHIP_RK3399) += rk3399-board.o
 obj-$(CONFIG_ROCKCHIP_RV1108) += rv1108-board.o

arch/arm/mach-rockchip/rk322x-board.c

-// SPDX-License-Identifier: GPL-2.0+
-/*
- * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
- */
-#include <common.h>
-#include <clk.h>
-#include <dm.h>
-#include <ram.h>
-#include <syscon.h>
-#include <asm/io.h>
-#include <asm/arch-rockchip/boot_mode.h>
-#include <asm/arch-rockchip/clock.h>
-#include <asm/arch-rockchip/periph.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-__weak int rk_board_late_init(void)
-{
-	return 0;
-}
-
-int board_late_init(void)
-{
-	setup_boot_mode();
-
-	return rk_board_late_init();
-}
-
-int board_init(void)
-{
-	return 0;
-}
-
-#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
-void enable_caches(void)
-{
-	/* Enable D-cache. I-cache is already enabled in start.S */
-	dcache_enable();
-}
-#endif
-
-#if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
-#include <usb.h>
-#include <usb/dwc2_udc.h>
-
-static struct dwc2_plat_otg_data otg_data = {
-	.rx_fifo_sz	= 512,
-	.np_tx_fifo_sz	= 16,
-	.tx_fifo_sz	= 128,
-};
-
-int board_usb_init(int index, enum usb_init_type init)
-{
-	int node;
-	const char *mode;
-	bool matched = false;
-	const void *blob = gd->fdt_blob;
-
-	/* find the usb_otg node */
-	node = fdt_node_offset_by_compatible(blob, -1,
-					"snps,dwc2");
-
-	while (node > 0) {
-		mode = fdt_getprop(blob, node, "dr_mode", NULL);
-		if (mode && strcmp(mode, "otg") == 0) {
-			matched = true;
-			break;
-		}
-
-		node = fdt_node_offset_by_compatible(blob, node,
-					"snps,dwc2");
-	}
-	if (!matched) {
-		debug("Not found usb_otg device\n");
-		return -ENODEV;
-	}
-	otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
-
-	return dwc2_udc_probe(&otg_data);
-}
-
-int board_usb_cleanup(int index, enum usb_init_type init)
-{
-	return 0;
-}
-#endif
-
-#if CONFIG_IS_ENABLED(FASTBOOT)
-int fastboot_set_reboot_flag(void)
-{
-	printf("Setting reboot to fastboot flag ...\n");
-	/* Set boot mode to fastboot */
-	writel(BOOT_FASTBOOT, CONFIG_ROCKCHIP_BOOT_MODE_REG);
-
-	return 0;
-}
-#endif