rockchip: back-to-bootrom: split BACK_TO_BOOTROM for TPL/SPL

The back-to-bootrom option is rather unfortunately named
  CONFIG_ROCKCHIP_SPL_BACK_TO_BOOTROM
instead of
  CONFIG_SPL_ROCKCHIP_BACK_TO_BOOTROM

To make is selectable through CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BOOTROM),
we need to rename it.  At the same time, we introduce a TPL_ variant of
the option to give us finer-grained control over when it should be used.

This change is motivated by our RK3368 boot process, which returns to
the boot ROM only from the TPL stage, but not from the SPL stage.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[added fix-up for evb-rk3229_defconfig and phycore-rk3288_defconfig:]
[fixed inverted CONFIG_IS_ENABLED test for rk3288:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

include/configs/rock.h: undef
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index c924613..37885b8 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -101,15 +101,26 @@
 	  The Rockchip RV1108 is a ARM-based SoC with a single-core Cortex-A7
 	  and a DSP.
 
-config ROCKCHIP_SPL_BACK_TO_BROM
+config SPL_ROCKCHIP_BACK_TO_BROM
 	bool "SPL returns to bootrom"
 	default y if ROCKCHIP_RK3036
 	select ROCKCHIP_BROM_HELPER
+	depends on SPL
 	help
 	  Rockchip SoCs have ability to load SPL & U-Boot binary. If enabled,
           SPL will return to the boot rom, which will then load the U-Boot
           binary to keep going on.
 
+config TPL_ROCKCHIP_BACK_TO_BROM
+	bool "TPL returns to bootrom"
+	default y if ROCKCHIP_RK3368
+	select ROCKCHIP_BROM_HELPER
+	depends on TPL
+	help
+	  Rockchip SoCs have ability to load SPL & U-Boot binary. If enabled,
+          SPL will return to the boot rom, which will then load the U-Boot
+          binary to keep going on.
+
 config ROCKCHIP_SPL_RESERVE_IRAM
 	hex "Size of IRAM reserved in SPL"
 	default 0x4000
@@ -122,7 +133,7 @@
 	bool
 
 config SPL_MMC_SUPPORT
-	default y if !ROCKCHIP_SPL_BACK_TO_BROM
+	default y if !SPL_ROCKCHIP_BACK_TO_BROM
 
 source "arch/arm/mach-rockchip/rk3036/Kconfig"
 source "arch/arm/mach-rockchip/rk3188/Kconfig"
diff --git a/arch/arm/mach-rockchip/rk3188-board-spl.c b/arch/arm/mach-rockchip/rk3188-board-spl.c
index c3e174d..d3866bf 100644
--- a/arch/arm/mach-rockchip/rk3188-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3188-board-spl.c
@@ -167,8 +167,7 @@
 	}
 
 	setup_arm_clock();
-
-#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
 	back_to_bootrom();
 #endif
 }
@@ -229,7 +228,7 @@
 	}
 
 	preloader_console_init();
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
 	back_to_bootrom();
 #endif
 	return;
diff --git a/arch/arm/mach-rockchip/rk3188-board.c b/arch/arm/mach-rockchip/rk3188-board.c
index 3e76100..622e046 100644
--- a/arch/arm/mach-rockchip/rk3188-board.c
+++ b/arch/arm/mach-rockchip/rk3188-board.c
@@ -39,7 +39,7 @@
 
 int board_init(void)
 {
-#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM)
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
 	struct udevice *pinctrl;
 	int ret;
 
diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
index 5668fd2..6b7bf85 100644
--- a/arch/arm/mach-rockchip/rk3288-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-spl.c
@@ -249,7 +249,7 @@
 		debug("DRAM init failed: %d\n", ret);
 		return;
 	}
-#if defined(CONFIG_ROCKCHIP_SPL_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM) && !defined(CONFIG_SPL_BOARD_INIT)
 	back_to_bootrom();
 #endif
 }
@@ -316,7 +316,7 @@
 	}
 
 	preloader_console_init();
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
 	back_to_bootrom();
 #endif
 	return;
diff --git a/arch/arm/mach-rockchip/rk3288-board.c b/arch/arm/mach-rockchip/rk3288-board.c
index 613967c..d5f568c 100644
--- a/arch/arm/mach-rockchip/rk3288-board.c
+++ b/arch/arm/mach-rockchip/rk3288-board.c
@@ -78,7 +78,7 @@
 	return rk_board_late_init();
 }
 
-#ifndef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#if !CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
 static int veyron_init(void)
 {
 	struct udevice *dev;
@@ -115,7 +115,7 @@
 
 int board_init(void)
 {
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
 	struct udevice *pinctrl;
 	int ret;
 
diff --git a/arch/arm/mach-rockchip/rk3399-board-spl.c b/arch/arm/mach-rockchip/rk3399-board-spl.c
index e050aff..710f7fe 100644
--- a/arch/arm/mach-rockchip/rk3399-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3399-board-spl.c
@@ -28,7 +28,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_OF_CONTROL)
+#if CONFIG_IS_ENABLED(OF_CONTROL)
 static int spl_node_to_boot_device(int node)
 {
 	struct udevice *parent;
@@ -263,7 +263,7 @@
 	}
 
 	preloader_console_init();
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
 	back_to_bootrom();
 #endif
 
diff --git a/configs/evb-rk3229_defconfig b/configs/evb-rk3229_defconfig
index 8b9a288..f4ad4c2 100644
--- a/configs/evb-rk3229_defconfig
+++ b/configs/evb-rk3229_defconfig
@@ -4,7 +4,7 @@
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SYS_MALLOC_F_LEN=0x800
 CONFIG_ROCKCHIP_RK322X=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_EVB_RK3229=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3229-evb"
diff --git a/configs/evb-rk3288_defconfig b/configs/evb-rk3288_defconfig
index fa3884c..88a70cd 100644
--- a/configs/evb-rk3288_defconfig
+++ b/configs/evb-rk3288_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_EVB_RK3288=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-evb"
diff --git a/configs/fennec-rk3288_defconfig b/configs/fennec-rk3288_defconfig
index 9d2b319..2d68242 100644
--- a/configs/fennec-rk3288_defconfig
+++ b/configs/fennec-rk3288_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_FENNEC_RK3288=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-fennec"
diff --git a/configs/firefly-rk3288_defconfig b/configs/firefly-rk3288_defconfig
index 99a3f63..b540805 100644
--- a/configs/firefly-rk3288_defconfig
+++ b/configs/firefly-rk3288_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_FIREFLY_RK3288=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-firefly"
diff --git a/configs/miqi-rk3288_defconfig b/configs/miqi-rk3288_defconfig
index a7c796d..3dd1872 100644
--- a/configs/miqi-rk3288_defconfig
+++ b/configs/miqi-rk3288_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_MIQI_RK3288=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-miqi"
diff --git a/configs/phycore-rk3288_defconfig b/configs/phycore-rk3288_defconfig
index 618d983..d09c92f 100644
--- a/configs/phycore-rk3288_defconfig
+++ b/configs/phycore-rk3288_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_PHYCORE_RK3288=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-phycore-rdk"
diff --git a/configs/popmetal-rk3288_defconfig b/configs/popmetal-rk3288_defconfig
index cfa2205..f68f988 100644
--- a/configs/popmetal-rk3288_defconfig
+++ b/configs/popmetal-rk3288_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_POPMETAL_RK3288=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-popmetal"
diff --git a/configs/rock2_defconfig b/configs/rock2_defconfig
index cca855c..570ff31 100644
--- a/configs/rock2_defconfig
+++ b/configs/rock2_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_ROCK2=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-rock2-square"
diff --git a/configs/rock_defconfig b/configs/rock_defconfig
index 2ad6a6c..101b159 100644
--- a/configs/rock_defconfig
+++ b/configs/rock_defconfig
@@ -4,7 +4,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3188=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_ROCK=y
 CONFIG_SPL_STACK_R_ADDR=0x60080000
 CONFIG_DEFAULT_DEVICE_TREE="rk3188-radxarock"
diff --git a/configs/tinker-rk3288_defconfig b/configs/tinker-rk3288_defconfig
index be93799..7dde8ab 100644
--- a/configs/tinker-rk3288_defconfig
+++ b/configs/tinker-rk3288_defconfig
@@ -2,7 +2,7 @@
 CONFIG_ARCH_ROCKCHIP=y
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ROCKCHIP_RK3288=y
-CONFIG_ROCKCHIP_SPL_BACK_TO_BROM=y
+CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y
 CONFIG_TARGET_TINKER_RK3288=y
 CONFIG_SPL_STACK_R_ADDR=0x80000
 CONFIG_DEFAULT_DEVICE_TREE="rk3288-tinker"
diff --git a/doc/README.rockchip b/doc/README.rockchip
index dbeb8be..12fec38 100644
--- a/doc/README.rockchip
+++ b/doc/README.rockchip
@@ -130,7 +130,7 @@
 Therefore RK3288 has another loading sequence like RK3036. The option of
 U-Boot is controlled with this setting in U-Boot:
 
-	#define CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+	#define CONFIG_SPL_ROCKCHIP_BACK_TO_BROM
 
 You can create the image via the following operations:
 
diff --git a/include/configs/rk3188_common.h b/include/configs/rk3188_common.h
index 3ee9abd..8a01936 100644
--- a/include/configs/rk3188_common.h
+++ b/include/configs/rk3188_common.h
@@ -26,7 +26,7 @@
 
 #define CONFIG_SYS_NS16550_MEM32
 
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#ifdef CONFIG_SPL_ROCKCHIP_BACK_TO_BROM
 /* Bootrom will load u-boot binary to 0x60000000 once return from SPL */
 #define CONFIG_SYS_TEXT_BASE		0x60000000
 #else
diff --git a/include/configs/rk3288_common.h b/include/configs/rk3288_common.h
index 488d679..ade6caf 100644
--- a/include/configs/rk3288_common.h
+++ b/include/configs/rk3288_common.h
@@ -24,7 +24,7 @@
 #define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SYS_NS16550_MEM32
 
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#ifdef CONFIG_SPL_ROCKCHIP_BACK_TO_BROM
 /* Bootrom will load u-boot binary to 0x0 once return from SPL */
 #define CONFIG_SYS_TEXT_BASE		0x00000000
 #else
diff --git a/include/configs/rock.h b/include/configs/rock.h
index e998ec5..6b0788b 100644
--- a/include/configs/rock.h
+++ b/include/configs/rock.h
@@ -12,7 +12,7 @@
 
 #define CONFIG_SYS_MMC_ENV_DEV 0
 
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#if defined(ROCKCHIP_BACK_TO_BROM)
 /* SPL @ 32k for 34k
  * u-boot directly after @ 68k for 400k or so
  * ENV @ 992k
diff --git a/include/configs/rockchip-common.h b/include/configs/rockchip-common.h
index 29a492d..b3986c2 100644
--- a/include/configs/rockchip-common.h
+++ b/include/configs/rockchip-common.h
@@ -46,7 +46,7 @@
 
 #endif
 
-#ifdef CONFIG_ROCKCHIP_SPL_BACK_TO_BROM
+#if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
 /* SPL @ 32k for 34k
  * u-boot directly after @ 68k for 400k or so
  * ENV @ 992k