[PATCH 12/28] ARM ep93xx boards: switch to barebox_arm_entry

[Sascha Hauer]

This architecture is a bit strange. It has up to four SDRAM banks, but
all have a quite limited size. The SDRAM size for the different boards
currently is unknown as it's configurable with Kconfig. We use a SDRAM
size based on the value of the only board we have in the defconfigs:
edb9301. This likely breaks other ep93xx boards.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/mach-ep93xx/Makefile        |    4 ++--
 arch/arm/mach-ep93xx/lowlevel_init.S |   11 ++++++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile
index 5615394..0ff0b66 100644
--- a/arch/arm/mach-ep93xx/Makefile
+++ b/arch/arm/mach-ep93xx/Makefile
@@ -1,4 +1,4 @@
 obj-y += clocksource.o gpio.o led.o header.o
 
-obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o
-pbl-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += lowlevel_init.o led.o
+obj-y += lowlevel_init.o
+pbl-y += lowlevel_init.o led.o
diff --git a/arch/arm/mach-ep93xx/lowlevel_init.S b/arch/arm/mach-ep93xx/lowlevel_init.S
index 6de53dd..154d38d 100644
--- a/arch/arm/mach-ep93xx/lowlevel_init.S
+++ b/arch/arm/mach-ep93xx/lowlevel_init.S
@@ -20,6 +20,7 @@
  *
  */
 
+#include <sizes.h>
 #include <mach/ep93xx-regs.h>
 #include <asm/barebox-arm-head.h>
 
@@ -52,4 +53,12 @@ reset:
 	orr r0, r0, #0xc0000000
 	mcr p15, 0, r0, c1, c0, 0
 
-	b board_init_lowlevel_return
+	/*
+	 * FIXME: This is suitable for the edb9301, the
+	 * only ep93xx board we have in our defconfigs.
+	 * Other boards need different values here.
+	 */
+	mov	r0, #0x05000000
+	mov	r1, #SZ_8M
+	mov	r2, #0
+	b	barebox_arm_entry
-- 
1.7.10.4