From 9608e7de6ac13626e8a2809b0350add57c1343ac Mon Sep 17 00:00:00 2001 From: Albert ARIBAUD Date: Sat, 31 Jan 2015 22:55:38 +0100 Subject: edminiv2: switch to SPL ED Mini V2 is based on Orion 5x which boots at fixed address 0xFFFF0000 in NOR Flash. Place SPL there, and switch U-Boot from .bin to .img format, stored in NOR Flash at 0xFFF90000. Note: this patch was tested on HW and works, i.e. it boots U-Boot properly, but SPL console output currently does not appear, due to GD being trashed by arch/arm/lib/spl.c. This trashing is soon to be removed, and then ED Mini V2 SPL console output will become visible. Signed-off-by: Albert ARIBAUD --- arch/arm/mach-orion5x/Kconfig | 1 + arch/arm/mach-orion5x/cpu.c | 2 ++ arch/arm/mach-orion5x/lowlevel_init.S | 14 ++++++++++++-- 3 files changed, 15 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/Kconfig b/arch/arm/mach-orion5x/Kconfig index 5a54262..291c511 100644 --- a/arch/arm/mach-orion5x/Kconfig +++ b/arch/arm/mach-orion5x/Kconfig @@ -5,6 +5,7 @@ choice config TARGET_EDMINIV2 bool "LaCie Ethernet Disk mini V2" + select SUPPORT_SPL endchoice diff --git a/arch/arm/mach-orion5x/cpu.c b/arch/arm/mach-orion5x/cpu.c index f88db3b..2ecd385 100644 --- a/arch/arm/mach-orion5x/cpu.c +++ b/arch/arm/mach-orion5x/cpu.c @@ -234,7 +234,9 @@ int arch_cpu_init(void) /* Enable and invalidate L2 cache in write through mode */ invalidate_l2_cache(); +#ifdef CONFIG_SPL_BUILD orion5x_config_adr_windows(); +#endif return 0; } diff --git a/arch/arm/mach-orion5x/lowlevel_init.S b/arch/arm/mach-orion5x/lowlevel_init.S index 4dacc29..51a8b3c 100644 --- a/arch/arm/mach-orion5x/lowlevel_init.S +++ b/arch/arm/mach-orion5x/lowlevel_init.S @@ -62,14 +62,16 @@ /* * Low-level init happens right after start.S has switched to SVC32, * flushed and disabled caches and disabled MMU. We're still running - * from the boot chip select, so the first thing we should do is set - * up RAM for us to relocate into. + * from the boot chip select, so the first thing SPL should do is to + * set up the RAM to copy U-Boot into. */ .globl lowlevel_init lowlevel_init: +#ifdef CONFIG_SPL_BUILD + /* Use 'r4 as the base for internal register accesses */ ldr r4, =ORION5X_REGS_PHY_BASE @@ -273,5 +275,13 @@ lowlevel_init: orr r2, r2, r6 str r2, [r3, #0x484] + /* enable for 2 GB DDR; detection should find out real amount */ + sub r6, r6, r6 + str r6, [r3, #0x500] + ldr r6, =0x7fff0001 + str r6, [r3, #0x504] + +#endif /* CONFIG_SPL_BUILD */ + /* Return to U-boot via saved link register */ mov pc, lr -- cgit v1.1