[U-Boot] [PATCH v4 06/20] rockchip: Move bootrom-related declarations to a header

[Heiko Stuebner]

So far spl-boards have declared the back_to_brom() function as simple
extern in the files themself. That doesn't scale well if every boards
defines this on its own.
Therefore move the declarations to a bootrom header.

Signed-off-by: Heiko Stuebner <heiko at sntech.de>
Tested-by: Kever Yang <kever.yang at rock-chips.com>
---
 arch/arm/include/asm/arch-rockchip/bootrom.h | 22 ++++++++++++++++++++++
 arch/arm/mach-rockchip/rk3036-board-spl.c    |  3 +--
 arch/arm/mach-rockchip/rk3288-board-spl.c    |  3 ++-
 3 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm/include/asm/arch-rockchip/bootrom.h

diff --git a/arch/arm/include/asm/arch-rockchip/bootrom.h b/arch/arm/include/asm/arch-rockchip/bootrom.h
new file mode 100644
index 0000000000..79fb1a07ac
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/bootrom.h
@@ -0,0 +1,22 @@
+/*
+ * (C) Copyright 2017 Heiko Stuebner <heiko at sntech.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef _ASM_ARCH_BOOTROM_H
+#define _ASM_ARCH_BOOTROM_H
+
+/*
+ * Saved Stack pointer address.
+ * Access might be needed in some special cases.
+ */
+extern u32 SAVE_SP_ADDR;
+
+/*
+ * Hand control back to the bootrom to load another
+ * boot stage.
+ */
+extern void back_to_bootrom(void);
+
+#endif
diff --git a/arch/arm/mach-rockchip/rk3036-board-spl.c b/arch/arm/mach-rockchip/rk3036-board-spl.c
index 801548109b..0522d65467 100644
--- a/arch/arm/mach-rockchip/rk3036-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3036-board-spl.c
@@ -7,6 +7,7 @@
 #include <common.h>
 #include <debug_uart.h>
 #include <asm/io.h>
+#include <asm/arch/bootrom.h>
 #include <asm/arch/grf_rk3036.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/sdram_rk3036.h>
@@ -20,8 +21,6 @@ static struct rk3036_grf * const grf = (void *)GRF_BASE;
 
 #define DEBUG_UART_BASE	0x20068000
 
-extern void back_to_bootrom(void);
-
 void board_init_f(ulong dummy)
 {
 #ifdef EARLY_DEBUG
diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
index 930939ad24..e51e19bb2d 100644
--- a/arch/arm/mach-rockchip/rk3288-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-spl.c
@@ -14,6 +14,7 @@
 #include <spl.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
+#include <asm/arch/bootrom.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/periph.h>
@@ -155,7 +156,7 @@ static int configure_emmc(struct udevice *pinctrl)
 	return 0;
 }
 #endif
-extern void back_to_bootrom(void);
+
 void board_init_f(ulong dummy)
 {
 	struct udevice *pinctrl;
-- 
2.11.0