diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-04 18:42:09 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-04 18:42:09 -0400 |
commit | 999fd1ab344dabd9c985b638bf4c29495b8e4619 (patch) | |
tree | b4a238aafc79caa085e469ee28ab61301ca17f8f /arch/sh/boot | |
parent | 9a9620db07b27700a4de9e86985735fffb78e2f8 (diff) | |
parent | ac422f9443191e050c16fe99baeb5c3d74934589 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits)
sh: Make intc messages consistent via pr_fmt.
sh: make sure static declaration on ms7724se
sh: make sure static declaration on mach-migor
sh: make sure static declaration on mach-ecovec24
sh: make sure static declaration on mach-ap325rxa
clocksource: sh_cmt: compute mult and shift before registration
clocksource: sh_tmu: compute mult and shift before registration
sh: PIO disabling for x3proto and urquell.
sh: mach-sdk7786: conditionally disable PIO support.
sh: support for platforms without PIO.
usb: r8a66597-hcd pio to mmio accessor conversion.
usb: gadget: r8a66597-udc pio to mmio accessor conversion.
usb: gadget: m66592-udc pio to mmio accessor conversion.
sh: add romImage MMCIF boot for sh7724 and Ecovec V2
sh: add boot code to MMCIF driver header
sh: prepare MMCIF driver header file
sh: allow romImage data between head.S and the zero page
sh: Add support MMCIF for ecovec
sh: remove duplicated #include
input: serio: disable i8042 for non-cayman sh platforms.
...
Diffstat (limited to 'arch/sh/boot')
-rw-r--r-- | arch/sh/boot/romimage/Makefile | 13 | ||||
-rw-r--r-- | arch/sh/boot/romimage/head.S | 42 | ||||
-rw-r--r-- | arch/sh/boot/romimage/mmcif-sh7724.c | 72 | ||||
-rw-r--r-- | arch/sh/boot/romimage/vmlinux.scr | 2 |
4 files changed, 122 insertions, 7 deletions
diff --git a/arch/sh/boot/romimage/Makefile b/arch/sh/boot/romimage/Makefile index f473a24a2d92..2216ee57f251 100644 --- a/arch/sh/boot/romimage/Makefile +++ b/arch/sh/boot/romimage/Makefile | |||
@@ -1,16 +1,21 @@ | |||
1 | # | 1 | # |
2 | # linux/arch/sh/boot/romimage/Makefile | 2 | # linux/arch/sh/boot/romimage/Makefile |
3 | # | 3 | # |
4 | # create an image suitable for burning to flash from zImage | 4 | # create an romImage file suitable for burning to flash/mmc from zImage |
5 | # | 5 | # |
6 | 6 | ||
7 | targets := vmlinux head.o zeropage.bin piggy.o | 7 | targets := vmlinux head.o zeropage.bin piggy.o |
8 | load-y := 0 | ||
8 | 9 | ||
9 | OBJECTS = $(obj)/head.o | 10 | mmcif-load-$(CONFIG_CPU_SUBTYPE_SH7724) := 0xe5200000 # ILRAM |
10 | LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext 0 -e romstart \ | 11 | mmcif-obj-$(CONFIG_CPU_SUBTYPE_SH7724) := $(obj)/mmcif-sh7724.o |
12 | load-$(CONFIG_ROMIMAGE_MMCIF) := $(mmcif-load-y) | ||
13 | obj-$(CONFIG_ROMIMAGE_MMCIF) := $(mmcif-obj-y) | ||
14 | |||
15 | LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(load-y) -e romstart \ | ||
11 | -T $(obj)/../../kernel/vmlinux.lds | 16 | -T $(obj)/../../kernel/vmlinux.lds |
12 | 17 | ||
13 | $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE | 18 | $(obj)/vmlinux: $(obj)/head.o $(obj-y) $(obj)/piggy.o FORCE |
14 | $(call if_changed,ld) | 19 | $(call if_changed,ld) |
15 | @: | 20 | @: |
16 | 21 | ||
diff --git a/arch/sh/boot/romimage/head.S b/arch/sh/boot/romimage/head.S index 93e779a405ec..4671d1b82150 100644 --- a/arch/sh/boot/romimage/head.S +++ b/arch/sh/boot/romimage/head.S | |||
@@ -12,8 +12,40 @@ romstart: | |||
12 | /* include board specific setup code */ | 12 | /* include board specific setup code */ |
13 | #include <mach/romimage.h> | 13 | #include <mach/romimage.h> |
14 | 14 | ||
15 | #ifdef CONFIG_ROMIMAGE_MMCIF | ||
16 | /* load the romImage to above the empty zero page */ | ||
17 | mov.l empty_zero_page_dst, r4 | ||
18 | mov.l empty_zero_page_dst_adj, r5 | ||
19 | add r5, r4 | ||
20 | mov.l bytes_to_load, r5 | ||
21 | mov.l loader_function, r7 | ||
22 | jsr @r7 | ||
23 | mov r4, r15 | ||
24 | |||
25 | mov.l empty_zero_page_dst, r4 | ||
26 | mov.l empty_zero_page_dst_adj, r5 | ||
27 | add r5, r4 | ||
28 | mov.l loaded_code_offs, r5 | ||
29 | add r5, r4 | ||
30 | jmp @r4 | ||
31 | nop | ||
32 | |||
33 | .balign 4 | ||
34 | empty_zero_page_dst_adj: | ||
35 | .long PAGE_SIZE | ||
36 | bytes_to_load: | ||
37 | .long end_data - romstart | ||
38 | loader_function: | ||
39 | .long mmcif_loader | ||
40 | loaded_code_offs: | ||
41 | .long loaded_code - romstart | ||
42 | loaded_code: | ||
43 | #endif /* CONFIG_ROMIMAGE_MMCIF */ | ||
44 | |||
15 | /* copy the empty_zero_page contents to where vmlinux expects it */ | 45 | /* copy the empty_zero_page contents to where vmlinux expects it */ |
16 | mova empty_zero_page_src, r0 | 46 | mova extra_data_pos, r0 |
47 | mov.l extra_data_size, r1 | ||
48 | add r1, r0 | ||
17 | mov.l empty_zero_page_dst, r1 | 49 | mov.l empty_zero_page_dst, r1 |
18 | mov #(PAGE_SHIFT - 4), r4 | 50 | mov #(PAGE_SHIFT - 4), r4 |
19 | mov #1, r3 | 51 | mov #1, r3 |
@@ -37,7 +69,9 @@ romstart: | |||
37 | mov #PAGE_SHIFT, r4 | 69 | mov #PAGE_SHIFT, r4 |
38 | mov #1, r1 | 70 | mov #1, r1 |
39 | shld r4, r1 | 71 | shld r4, r1 |
40 | mova empty_zero_page_src, r0 | 72 | mova extra_data_pos, r0 |
73 | add r1, r0 | ||
74 | mov.l extra_data_size, r1 | ||
41 | add r1, r0 | 75 | add r1, r0 |
42 | jmp @r0 | 76 | jmp @r0 |
43 | nop | 77 | nop |
@@ -45,4 +79,6 @@ romstart: | |||
45 | .align 2 | 79 | .align 2 |
46 | empty_zero_page_dst: | 80 | empty_zero_page_dst: |
47 | .long _text | 81 | .long _text |
48 | empty_zero_page_src: | 82 | extra_data_pos: |
83 | extra_data_size: | ||
84 | .long zero_page_pos - extra_data_pos | ||
diff --git a/arch/sh/boot/romimage/mmcif-sh7724.c b/arch/sh/boot/romimage/mmcif-sh7724.c new file mode 100644 index 000000000000..14863d7292cb --- /dev/null +++ b/arch/sh/boot/romimage/mmcif-sh7724.c | |||
@@ -0,0 +1,72 @@ | |||
1 | /* | ||
2 | * sh7724 MMCIF loader | ||
3 | * | ||
4 | * Copyright (C) 2010 Magnus Damm | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License. See the file "COPYING" in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | |||
11 | #include <linux/mmc/sh_mmcif.h> | ||
12 | #include <mach/romimage.h> | ||
13 | |||
14 | #define MMCIF_BASE (void __iomem *)0xa4ca0000 | ||
15 | |||
16 | #define MSTPCR2 0xa4150038 | ||
17 | #define PTWCR 0xa4050146 | ||
18 | #define PTXCR 0xa4050148 | ||
19 | #define PSELA 0xa405014e | ||
20 | #define PSELE 0xa4050156 | ||
21 | #define HIZCRC 0xa405015c | ||
22 | #define DRVCRA 0xa405018a | ||
23 | |||
24 | enum { MMCIF_PROGRESS_ENTER, MMCIF_PROGRESS_INIT, | ||
25 | MMCIF_PROGRESS_LOAD, MMCIF_PROGRESS_DONE }; | ||
26 | |||
27 | /* SH7724 specific MMCIF loader | ||
28 | * | ||
29 | * loads the romImage from an MMC card starting from block 512 | ||
30 | * use the following line to write the romImage to an MMC card | ||
31 | * # dd if=arch/sh/boot/romImage of=/dev/sdx bs=512 seek=512 | ||
32 | */ | ||
33 | asmlinkage void mmcif_loader(unsigned char *buf, unsigned long no_bytes) | ||
34 | { | ||
35 | mmcif_update_progress(MMCIF_PROGRESS_ENTER); | ||
36 | |||
37 | /* enable clock to the MMCIF hardware block */ | ||
38 | __raw_writel(__raw_readl(MSTPCR2) & ~0x20000000, MSTPCR2); | ||
39 | |||
40 | /* setup pins D7-D0 */ | ||
41 | __raw_writew(0x0000, PTWCR); | ||
42 | |||
43 | /* setup pins MMC_CLK, MMC_CMD */ | ||
44 | __raw_writew(__raw_readw(PTXCR) & ~0x000f, PTXCR); | ||
45 | |||
46 | /* select D3-D0 pin function */ | ||
47 | __raw_writew(__raw_readw(PSELA) & ~0x2000, PSELA); | ||
48 | |||
49 | /* select D7-D4 pin function */ | ||
50 | __raw_writew(__raw_readw(PSELE) & ~0x3000, PSELE); | ||
51 | |||
52 | /* disable Hi-Z for the MMC pins */ | ||
53 | __raw_writew(__raw_readw(HIZCRC) & ~0x0620, HIZCRC); | ||
54 | |||
55 | /* high drive capability for MMC pins */ | ||
56 | __raw_writew(__raw_readw(DRVCRA) | 0x3000, DRVCRA); | ||
57 | |||
58 | mmcif_update_progress(MMCIF_PROGRESS_INIT); | ||
59 | |||
60 | /* setup MMCIF hardware */ | ||
61 | sh_mmcif_boot_init(MMCIF_BASE); | ||
62 | |||
63 | mmcif_update_progress(MMCIF_PROGRESS_LOAD); | ||
64 | |||
65 | /* load kernel via MMCIF interface */ | ||
66 | sh_mmcif_boot_slurp(MMCIF_BASE, buf, no_bytes); | ||
67 | |||
68 | /* disable clock to the MMCIF hardware block */ | ||
69 | __raw_writel(__raw_readl(MSTPCR2) | 0x20000000, MSTPCR2); | ||
70 | |||
71 | mmcif_update_progress(MMCIF_PROGRESS_DONE); | ||
72 | } | ||
diff --git a/arch/sh/boot/romimage/vmlinux.scr b/arch/sh/boot/romimage/vmlinux.scr index 287c08f8b4bb..590394e2f5f2 100644 --- a/arch/sh/boot/romimage/vmlinux.scr +++ b/arch/sh/boot/romimage/vmlinux.scr | |||
@@ -1,6 +1,8 @@ | |||
1 | SECTIONS | 1 | SECTIONS |
2 | { | 2 | { |
3 | .text : { | 3 | .text : { |
4 | zero_page_pos = .; | ||
4 | *(.data) | 5 | *(.data) |
6 | end_data = .; | ||
5 | } | 7 | } |
6 | } | 8 | } |