On Sun, Jan 09, 2011 at 11:12:39PM +0000, Russell King - ARM Linux wrote: > On Sun, Jan 09, 2011 at 09:49:28PM +0900, Simon Horman wrote: > > diff --git a/arch/arm/boot/compressed/head-shmobile.S > > b/arch/arm/boot/compressed/head-shmobile.S > > index 30973b7..de83c5a 100644 > > --- a/arch/arm/boot/compressed/head-shmobile.S > > +++ b/arch/arm/boot/compressed/head-shmobile.S > > @@ -25,6 +25,37 @@ > > /* load board-specific initialization code */ > > #include <mach/zboot.h> > > > > +#ifdef CONFIG_ZBOOT_ROM_MMCIF > > + /* Load image from MMC */ > > + adr sp, __tmp_stack > > + add sp, sp, #128 > > This can be replaced with: > > adr sp, __tmp_stack + 128 ?
Thanks, changed. > > + ldr r0, __image_start > > + ldr r1, __image_end > > + subs r1, r1, r0 > > + ldr r0, __load_base > > > + mov lr, pc > > + b mmcif_loader > > No need for a separate mov instruction - this will do both in one go: > bl mmcif_loader Also changed. > > + > > + /* Jump to loaded code */ > > + ldr r0, __loaded > > + ldr r1, __image_start > > + sub r0, r0, r1 > > + ldr r1, __load_base > > + add pc, r0, r1 > > *__loaded - *__image_start + *__load_base > > &__loaded - &_start + CONFIG_MEMORY_START + 0x02000000 > > So this jumps to the '__loaded' label in the just loaded image - are you > sure you want to jump to a location that contains an address rather than > code? I think you want the two changes below to correct that. Thanks, I have verified that your change is correct. Actually, I'm rather unsure how my (broken) code got this far. I suspect that I moved __tmp_stack late in the game and forgot to re-test the code. My bad. > > + > > +__image_start: > > + .long _start > > +__image_end: > > + .long _got_end > > +__load_base: > > + .long CONFIG_MEMORY_START + 0x02000000 @ Load at 32Mb into SDRAM > > +__loaded: > > + .long __loaded > > change to > .long __continue > > > + .align > > +__tmp_stack: > > + .space 128 > > add __continue > > > +#endif /* CONFIG_ZBOOT_ROM_MMCIF */ > > + > > b 1f > > __atags:@ tag #1 > > .long 12 @ tag->hdr.size = tag_size(tag_core); > > diff --git a/arch/arm/boot/compressed/mmcif-sh7372.c > > b/arch/arm/boot/compressed/mmcif-sh7372.c > > new file mode 100644 > > index 0000000..c54df5c > > --- /dev/null > > +++ b/arch/arm/boot/compressed/mmcif-sh7372.c > > @@ -0,0 +1,87 @@ > > +/* > > + * sh7372 MMCIF loader > > + * > > + * Copyright (C) 2010 Magnus Damm > > + * Copyright (C) 2010 Simon Horman > > + * > > + * This file is subject to the terms and conditions of the GNU General > > Public > > + * License. See the file "COPYING" in the main directory of this archive > > + * for more details. > > + */ > > + > > +#include <linux/mmc/sh_mmcif.h> > > +#include <mach/mmcif.h> > > + > > +#define MMCIF_BASE (void __iomem *)0xe6bd0000 > > + > > +#define PORT84CR 0xe6050054 > > +#define PORT85CR 0xe6050055 > > +#define PORT86CR 0xe6050056 > > +#define PORT87CR 0xe6050057 > > +#define PORT88CR 0xe6050058 > > +#define PORT89CR 0xe6050059 > > +#define PORT90CR 0xe605005a > > +#define PORT91CR 0xe605005b > > +#define PORT92CR 0xe605005c > > +#define PORT99CR 0xe6050063 > > + > > +#define SMSTPCR3 0xe615013c > > These should also be (void __iomem *). > > > diff --git a/arch/arm/mach-shmobile/include/mach/mmcif-ap4eb.h > > b/arch/arm/mach-shmobile/include/mach/mmcif-ap4eb.h > > new file mode 100644 > > index 0000000..c6b10ee > > --- /dev/null > > +++ b/arch/arm/mach-shmobile/include/mach/mmcif-ap4eb.h > > @@ -0,0 +1,29 @@ > > +#ifndef MMCIF_AP4EB_H > > +#define MMCIF_AP4EB_H > > + > > +#define PORT185CR 0xe60520b9 > > +#define PORT186CR 0xe60520ba > > +#define PORT187CR 0xe60520bb > > +#define PORT188CR 0xe60520bc > > + > > +#define PORTR191_160DR 0xe6056014 > > Ditto. Thanks, I've fixed these. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
