Merge branch 'master' of http://git.denx.de/u-boot-sunxi

4 files changed, 31 insertions, 26 deletions

diff --git a/arch/arm/include/asm/arch-sunxi/dram.h b/arch/arm/include/asm/arch-sunxi/dram.h
index 7ff43e6..aedd194 100644
--- a/arch/arm/include/asm/arch-sunxi/dram.h
+++ b/arch/arm/include/asm/arch-sunxi/dram.h
@@ -25,31 +25,7 @@
 #endif
 
 unsigned long sunxi_dram_init(void);
-
-/*
- * Wait up to 1s for value to be set in given part of reg.
- */
-static inline void mctl_await_completion(u32 *reg, u32 mask, u32 val)
-{
-	unsigned long tmo = timer_get_us() + 1000000;
-
-	while ((readl(reg) & mask) != val) {
-		if (timer_get_us() > tmo)
-			panic("Timeout initialising DRAM\n");
-	}
-}
-
-/*
- * Test if memory at offset offset matches memory at begin of DRAM
- */
-static inline bool mctl_mem_matches(u32 offset)
-{
-	/* Try to write different values to RAM at two addresses */
-	writel(0, CONFIG_SYS_SDRAM_BASE);
-	writel(0xaa55aa55, CONFIG_SYS_SDRAM_BASE + offset);
-	/* Check if the same value is actually observed when reading back */
-	return readl(CONFIG_SYS_SDRAM_BASE) ==
-	       readl(CONFIG_SYS_SDRAM_BASE + offset);
-}
+void mctl_await_completion(u32 *reg, u32 mask, u32 val);
+bool mctl_mem_matches(u32 offset);
 
 #endif /* _SUNXI_DRAM_H */
diff --git a/arch/arm/include/asm/arch-sunxi/sys_proto.h b/arch/arm/include/asm/arch-sunxi/sys_proto.h
index c3e636e..60a5bd8 100644
--- a/arch/arm/include/asm/arch-sunxi/sys_proto.h
+++ b/arch/arm/include/asm/arch-sunxi/sys_proto.h
@@ -13,4 +13,14 @@
 
 void sdelay(unsigned long);
 
+/* return_to_fel() - Return to BROM from SPL
+ *
+ * This returns back into the BROM after U-Boot SPL has performed its initial
+ * init. It uses the provided lr and sp to do so.
+ *
+ * @lr:		BROM link register value (return address)
+ * @sp:		BROM stack pointer
+ */
+void return_to_fel(uint32_t lr, uint32_t sp);
+
 #endif
diff --git a/arch/arm/include/asm/spl.h b/arch/arm/include/asm/spl.h
index 8acd7cd..17b6f54 100644
--- a/arch/arm/include/asm/spl.h
+++ b/arch/arm/include/asm/spl.h
@@ -26,10 +26,14 @@ enum {
 	BOOT_DEVICE_SPI,
 	BOOT_DEVICE_SATA,
 	BOOT_DEVICE_I2C,
+	BOOT_DEVICE_BOARD,
 	BOOT_DEVICE_NONE
 };
 #endif
 
+/* Board-specific load method */
+void spl_board_load_image(void);
+
 /* Linker symbols. */
 extern char __bss_start[], __bss_end[];
 
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 89f2294..7820486 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -142,6 +142,21 @@ void flush_l3_cache(void);
 
 #ifndef __ASSEMBLY__
 
+/**
+ * save_boot_params() - Save boot parameters before starting reset sequence
+ *
+ * If you provide this function it will be called immediately U-Boot starts,
+ * both for SPL and U-Boot proper.
+ *
+ * All registers are unchanged from U-Boot entry. No registers need be
+ * preserved.
+ *
+ * This is not a normal C function. There is no stack. Return by branching to
+ * save_boot_params_ret.
+ *
+ * void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3);
+ */
+
 #define isb() __asm__ __volatile__ ("" : : : "memory")
 
 #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");