rockchip: Add Single boot image (with binman, pad_cat)

All rockchip platforms support TPL or SPL-based bootloader
in mainline with U-Boot proper as final stage. For each
stage we need to burn the image on to flash with respective
offsets.

This patch creates a single boot image component using
- binman, for arm32 rockchip platforms
- pad_cat, for arm64 rockchip platforms.

This would help users to get rid of burning different
boot stage images.

The new image called 'u-boot-rockchip.bin'
which can burn into flash like:

₹ sudo dd if=u-boot-rockchip.bin of=/dev/sda seek=64

This would support all rockchip platforms, except rk3128
since it doesn't support for SPL yet.

Cc: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Cc: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

Makefile

@@ -912,7 +912,7 @@ ALL-y += u-boot-with-dtb.bin
 endif
 
 ifeq ($(CONFIG_ARCH_ROCKCHIP)$(CONFIG_SPL),yy)
-ALL-y += idbloader.img
+ALL-y += u-boot-rockchip.bin
 endif
 
 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
@@ -1399,7 +1399,17 @@ idbloader.img: spl/u-boot-spl.bin FORCE
 	$(call if_changed,mkimage)
 endif
 
-endif
+ifeq ($(CONFIG_ARM64),)
+u-boot-rockchip.bin: idbloader.img u-boot.img FORCE
+	$(call if_changed,binman)
+else
+OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
+	--pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
+u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
+	$(call if_changed,pad_cat)
+endif # CONFIG_ARM64
+
+endif # CONFIG_ARCH_ROCKCHIP
 
 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)

arch/arm/Kconfig

@@ -1625,6 +1625,7 @@ config ARCH_STM32MP
 config ARCH_ROCKCHIP
 	bool "Support Rockchip SoCs"
 	select BLK
+	select BINMAN if !ARM64
 	select DM
 	select DM_GPIO
 	select DM_I2C

arch/arm/dts/rk3036-u-boot.dtsi

@@ -2,3 +2,5 @@
 /*
  * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
  */
+
+#include "rockchip-u-boot.dtsi"

arch/arm/dts/rk3188-u-boot.dtsi

@@ -2,3 +2,5 @@
 /*
  * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
  */
+
+#include "rockchip-u-boot.dtsi"

arch/arm/dts/rk3288-u-boot.dtsi

@@ -3,6 +3,8 @@
  * Copyright (C) 2019 Rockchip Electronics Co., Ltd
  */
 
+#include "rockchip-u-boot.dtsi"
+
 / {
 	chosen {
 		u-boot,spl-boot-order = \

arch/arm/dts/rockchip-u-boot.dtsi

@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
+ */
+
+#include <config.h>
+
+/ {
+	binman {
+		filename = "u-boot-rockchip.bin";
+		pad-byte = <0xff>;
+
+		blob {
+			filename = "idbloader.img";
+		};
+
+		u-boot-img {
+			offset = <CONFIG_SPL_PAD_TO>;
+		};
+	};
+};

configs/phycore-rk3288_defconfig

@@ -19,8 +19,6 @@ CONFIG_DEFAULT_FDT_FILE="rk3288-phycore-rdk.dtb"
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_SPL_STACK_R=y
 CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x2000
-CONFIG_SPL_I2C_SUPPORT=y
-CONFIG_SPL_POWER_SUPPORT=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y

include/configs/rockchip-common.h

@@ -9,6 +9,9 @@
 
 #define CONFIG_SYS_NS16550_MEM32
 
+/* ((CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR - 64) * 512) */
+#define CONFIG_SPL_PAD_TO		8355840
+
 #ifndef CONFIG_SPL_BUILD
 
 /* First try to boot from SD (index 0), then eMMC (index 1) */