23 files changed, 354 insertions, 59 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index c5ee4ce60b57..573fca1fbd9b 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -9,7 +9,7 @@ config SUPERH
         def_bool y
         select EMBEDDED
         select HAVE_CLK
-        select HAVE_IDE
+        select HAVE_IDE if HAS_IOPORT
         select HAVE_LMB
         select HAVE_OPROFILE
         select HAVE_GENERIC_DMA_COHERENT
@@ -174,6 +174,9 @@ config ARCH_HAS_DEFAULT_IDLE
 config ARCH_HAS_CPU_IDLE_WAIT
         def_bool y
 
+config NO_IOPORT
+        bool
+
 config IO_TRAPPED
         bool
 
@@ -776,6 +779,17 @@ config ENTRY_OFFSET
         default "0x00010000" if PAGE_SIZE_64KB
         default "0x00000000"
 
+config ROMIMAGE_MMCIF
+        bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
+        depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
+        help
+          Say Y here to include experimental MMCIF loading code in
+          romImage. With this enabled it is possible to write the romImage
+          kernel image to an MMC card and boot the kernel straight from
+          the reset vector. At reset the processor Mask ROM will load the
+          first part of the romImage which in turn loads the rest the kernel
+          image to RAM using the MMCIF hardware block.
+
 choice
         prompt "Kernel command line"
         optional
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index 938e87d51482..07b35ca2f644 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -154,6 +154,7 @@ config SH_SDK7786
         bool "SDK7786"
         depends on CPU_SUBTYPE_SH7786
         select SYS_SUPPORTS_PCI
+        select NO_IOPORT if !PCI
         help
           Select SDK7786 if configuring for a Renesas Technology Europe
           SH7786-65nm board.
@@ -190,6 +191,7 @@ config SH_URQUELL
         depends on CPU_SUBTYPE_SH7786
         select ARCH_REQUIRE_GPIOLIB
         select SYS_SUPPORTS_PCI
+        select NO_IOPORT if !PCI
 
 config SH_MIGOR
         bool "Migo-R"
@@ -286,6 +288,7 @@ config SH_LBOX_RE2
 config SH_X3PROTO
         bool "SH-X3 Prototype board"
         depends on CPU_SUBTYPE_SHX3
+        select NO_IOPORT if !PCI
 
 config SH_MAGIC_PANEL_R2
         bool "Magic Panel R2"
diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c
index 57e37e284208..3a170bd3f3d0 100644
--- a/arch/sh/boards/mach-ap325rxa/setup.c
+++ b/arch/sh/boards/mach-ap325rxa/setup.c
@@ -328,7 +328,7 @@ static struct soc_camera_platform_info camera_info = {
         .set_capture = camera_set_capture,
 };
 
-struct soc_camera_link camera_link = {
+static struct soc_camera_link camera_link = {
         .bus_id         = 0,
         .add_device     = ap325rxa_camera_add,
         .del_device     = ap325rxa_camera_del,
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 49714258732e..be1d114d3a43 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -12,6 +12,8 @@
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/sh_mobile_sdhi.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sh_mmcif.h>
 #include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
@@ -26,7 +28,6 @@
 #include <linux/mmc/host.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
-#include <linux/mfd/sh_mobile_sdhi.h>
 #include <video/sh_mobile_lcdc.h>
 #include <sound/sh_fsi.h>
 #include <media/sh_mobile_ceu.h>
@@ -139,7 +140,7 @@ static struct resource sh_eth_resources[] = {
         },
 };
 
-struct sh_eth_plat_data sh_eth_plat = {
+static struct sh_eth_plat_data sh_eth_plat = {
         .phy = 0x1f, /* SMSC LAN8700 */
         .edmac_endian = EDMAC_LITTLE_ENDIAN,
         .ether_link_active_low = 1
@@ -159,7 +160,7 @@ static struct platform_device sh_eth_device = {
 };
 
 /* USB0 host */
-void usb0_port_power(int port, int power)
+static void usb0_port_power(int port, int power)
 {
         gpio_set_value(GPIO_PTB4, power);
 }
@@ -195,7 +196,7 @@ static struct platform_device usb0_host_device = {
 };
 
 /* USB1 host/function */
-void usb1_port_power(int port, int power)
+static void usb1_port_power(int port, int power)
 {
         gpio_set_value(GPIO_PTB5, power);
 }
@@ -421,7 +422,7 @@ static int ts_init(void)
         return 0;
 }
 
-struct tsc2007_platform_data tsc2007_info = {
+static struct tsc2007_platform_data tsc2007_info = {
         .model                  = 2007,
         .x_plate_ohms           = 180,
         .get_pendown_state      = ts_get_pendown_state,
@@ -436,7 +437,7 @@ static struct i2c_board_info ts_i2c_clients = {
 };
 
 #ifdef CONFIG_MFD_SH_MOBILE_SDHI
-/* SHDI0 */
+/* SDHI0 */
 static void sdhi0_set_pwr(struct platform_device *pdev, int state)
 {
         gpio_set_value(GPIO_PTB6, state);
@@ -474,7 +475,8 @@ static struct platform_device sdhi0_device = {
         },
 };
 
-/* SHDI1 */
+#if !defined(CONFIG_MMC_SH_MMCIF)
+/* SDHI1 */
 static void sdhi1_set_pwr(struct platform_device *pdev, int state)
 {
         gpio_set_value(GPIO_PTB7, state);
@@ -511,6 +513,7 @@ static struct platform_device sdhi1_device = {
                 .hwblk_id = HWBLK_SDHI1,
         },
 };
+#endif /* CONFIG_MMC_SH_MMCIF */
 
 #else
 
@@ -720,7 +723,7 @@ static struct clk fsimckb_clk = {
         .rate           = 0, /* unknown */
 };
 
-struct sh_fsi_platform_info fsi_info = {
+static struct sh_fsi_platform_info fsi_info = {
         .portb_flags = SH_FSI_BRS_INV |
                        SH_FSI_OUT_SLAVE_MODE |
                        SH_FSI_IN_SLAVE_MODE |
@@ -777,7 +780,7 @@ static struct platform_device irda_device = {
 #include <media/ak881x.h>
 #include <media/sh_vou.h>
 
-struct ak881x_pdata ak881x_pdata = {
+static struct ak881x_pdata ak881x_pdata = {
         .flags = AK881X_IF_MODE_SLAVE,
 };
 
@@ -786,7 +789,7 @@ static struct i2c_board_info ak8813 = {
         .platform_data = &ak881x_pdata,
 };
 
-struct sh_vou_pdata sh_vou_pdata = {
+static struct sh_vou_pdata sh_vou_pdata = {
         .bus_fmt        = SH_VOU_BUS_8BIT,
         .flags          = SH_VOU_HSYNC_LOW | SH_VOU_VSYNC_LOW,
         .board_info     = &ak8813,
@@ -819,6 +822,58 @@ static struct platform_device vou_device = {
         },
 };
 
+#if defined(CONFIG_MMC_SH_MMCIF)
+/* SH_MMCIF */
+static void mmcif_set_pwr(struct platform_device *pdev, int state)
+{
+        gpio_set_value(GPIO_PTB7, state);
+}
+
+static void mmcif_down_pwr(struct platform_device *pdev)
+{
+        gpio_set_value(GPIO_PTB7, 0);
+}
+
+static struct resource sh_mmcif_resources[] = {
+        [0] = {
+                .name   = "SH_MMCIF",
+                .start  = 0xA4CA0000,
+                .end    = 0xA4CA00FF,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                /* MMC2I */
+                .start  = 29,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                /* MMC3I */
+                .start  = 30,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct sh_mmcif_plat_data sh_mmcif_plat = {
+        .set_pwr        = mmcif_set_pwr,
+        .down_pwr       = mmcif_down_pwr,
+        .sup_pclk       = 0, /* SH7724: Max Pclk/2 */
+        .caps           = MMC_CAP_4_BIT_DATA |
+                          MMC_CAP_8_BIT_DATA |
+                          MMC_CAP_NEEDS_POLL,
+        .ocr            = MMC_VDD_32_33 | MMC_VDD_33_34,
+};
+
+static struct platform_device sh_mmcif_device = {
+        .name           = "sh_mmcif",
+        .id             = 0,
+        .dev            = {
+                .platform_data          = &sh_mmcif_plat,
+        },
+        .num_resources  = ARRAY_SIZE(sh_mmcif_resources),
+        .resource       = sh_mmcif_resources,
+};
+#endif
+
 static struct platform_device *ecovec_devices[] __initdata = {
         &heartbeat_device,
         &nor_flash_device,
@@ -831,7 +886,9 @@ static struct platform_device *ecovec_devices[] __initdata = {
         &keysc_device,
 #ifdef CONFIG_MFD_SH_MOBILE_SDHI
         &sdhi0_device,
+#if !defined(CONFIG_MMC_SH_MMCIF)
         &sdhi1_device,
+#endif
 #else
         &msiof0_device,
 #endif
@@ -841,6 +898,9 @@ static struct platform_device *ecovec_devices[] __initdata = {
         &fsi_device,
         &irda_device,
         &vou_device,
+#if defined(CONFIG_MMC_SH_MMCIF)
+        &sh_mmcif_device,
+#endif
 };
 
 #ifdef CONFIG_I2C
@@ -1134,6 +1194,7 @@ static int __init arch_setup(void)
         gpio_request(GPIO_PTB6, NULL);
         gpio_direction_output(GPIO_PTB6, 0);
 
+#if !defined(CONFIG_MMC_SH_MMCIF)
         /* enable SDHI1 on CN12 (needs DS2.6,7 set to ON,OFF) */
         gpio_request(GPIO_FN_SDHI1CD,  NULL);
         gpio_request(GPIO_FN_SDHI1WP,  NULL);
@@ -1148,6 +1209,7 @@ static int __init arch_setup(void)
 
         /* I/O buffer drive ability is high for SDHI1 */
         __raw_writew((__raw_readw(IODRIVEA) & ~0x3000) | 0x2000 , IODRIVEA);
+#endif /* CONFIG_MMC_SH_MMCIF */
 #else
         /* enable MSIOF0 on CN11 (needs DS2.4 set to OFF) */
         gpio_request(GPIO_FN_MSIOF0_TXD, NULL);
@@ -1223,6 +1285,25 @@ static int __init arch_setup(void)
         gpio_request(GPIO_PTU5, NULL);
         gpio_direction_output(GPIO_PTU5, 0);
 
+#if defined(CONFIG_MMC_SH_MMCIF)
+        /* enable MMCIF (needs DS2.6,7 set to OFF,ON) */
+        gpio_request(GPIO_FN_MMC_D7, NULL);
+        gpio_request(GPIO_FN_MMC_D6, NULL);
+        gpio_request(GPIO_FN_MMC_D5, NULL);
+        gpio_request(GPIO_FN_MMC_D4, NULL);
+        gpio_request(GPIO_FN_MMC_D3, NULL);
+        gpio_request(GPIO_FN_MMC_D2, NULL);
+        gpio_request(GPIO_FN_MMC_D1, NULL);
+        gpio_request(GPIO_FN_MMC_D0, NULL);
+        gpio_request(GPIO_FN_MMC_CLK, NULL);
+        gpio_request(GPIO_FN_MMC_CMD, NULL);
+        gpio_request(GPIO_PTB7, NULL);
+        gpio_direction_output(GPIO_PTB7, 0);
+
+        /* I/O buffer drive ability is high for MMCIF */
+        __raw_writew((__raw_readw(IODRIVEA) & ~0x3000) | 0x2000 , IODRIVEA);
+#endif
+
         /* enable I2C device */
         i2c_register_board_info(0, i2c0_devices,
                                 ARRAY_SIZE(i2c0_devices));
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 87185de20446..662debe4ead2 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -181,7 +181,7 @@ static int migor_nand_flash_ready(struct mtd_info *mtd)
         return gpio_get_value(GPIO_PTA1); /* NAND_RBn */
 }
 
-struct platform_nand_data migor_nand_flash_data = {
+static struct platform_nand_data migor_nand_flash_data = {
         .chip = {
                 .nr_chips = 1,
                 .partitions = migor_nand_flash_partitions,
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index f9b82546c2df..552ebd9ba82b 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -283,7 +283,7 @@ static struct clk fsimcka_clk = {
 };
 
 /* change J20, J21, J22 pin to 1-2 connection to use slave mode */
-struct sh_fsi_platform_info fsi_info = {
+static struct sh_fsi_platform_info fsi_info = {
         .porta_flags = SH_FSI_BRS_INV |
                        SH_FSI_OUT_SLAVE_MODE |
                        SH_FSI_IN_SLAVE_MODE |
@@ -371,7 +371,7 @@ static struct resource sh_eth_resources[] = {
         },
 };
 
-struct sh_eth_plat_data sh_eth_plat = {
+static struct sh_eth_plat_data sh_eth_plat = {
         .phy = 0x1f, /* SMSC LAN8187 */
         .edmac_endian = EDMAC_LITTLE_ENDIAN,
 };
@@ -535,7 +535,7 @@ static struct platform_device irda_device = {
 #include <media/ak881x.h>
 #include <media/sh_vou.h>
 
-struct ak881x_pdata ak881x_pdata = {
+static struct ak881x_pdata ak881x_pdata = {
         .flags = AK881X_IF_MODE_SLAVE,
 };
 
@@ -545,7 +545,7 @@ static struct i2c_board_info ak8813 = {
         .platform_data = &ak881x_pdata,
 };
 
-struct sh_vou_pdata sh_vou_pdata = {
+static struct sh_vou_pdata sh_vou_pdata = {
         .bus_fmt        = SH_VOU_BUS_8BIT,
         .flags          = SH_VOU_HSYNC_LOW | SH_VOU_VSYNC_LOW,
         .board_info     = &ak8813,
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 @@
 #
 # linux/arch/sh/boot/romimage/Makefile
 #
-# create an image suitable for burning to flash from zImage
+# create an romImage file suitable for burning to flash/mmc from zImage
 #
 
 targets         := vmlinux head.o zeropage.bin piggy.o
+load-y          := 0
 
-OBJECTS = $(obj)/head.o
-LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext 0 -e romstart \
+mmcif-load-$(CONFIG_CPU_SUBTYPE_SH7724) := 0xe5200000 # ILRAM
+mmcif-obj-$(CONFIG_CPU_SUBTYPE_SH7724)  := $(obj)/mmcif-sh7724.o
+load-$(CONFIG_ROMIMAGE_MMCIF)           := $(mmcif-load-y)
+obj-$(CONFIG_ROMIMAGE_MMCIF)            := $(mmcif-obj-y)
+
+LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(load-y) -e romstart \
                    -T $(obj)/../../kernel/vmlinux.lds
 
-$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
+$(obj)/vmlinux: $(obj)/head.o $(obj-y) $(obj)/piggy.o FORCE
         $(call if_changed,ld)
         @:
 
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:
         /* include board specific setup code */
 #include <mach/romimage.h>
 
+#ifdef CONFIG_ROMIMAGE_MMCIF
+        /* load the romImage to above the empty zero page */
+        mov.l   empty_zero_page_dst, r4
+        mov.l   empty_zero_page_dst_adj, r5
+        add     r5, r4
+        mov.l   bytes_to_load, r5
+        mov.l   loader_function, r7
+        jsr     @r7
+         mov    r4, r15
+
+        mov.l   empty_zero_page_dst, r4
+        mov.l   empty_zero_page_dst_adj, r5
+        add     r5, r4
+        mov.l   loaded_code_offs, r5
+        add     r5, r4
+        jmp     @r4
+         nop
+
+        .balign 4
+empty_zero_page_dst_adj:
+        .long   PAGE_SIZE
+bytes_to_load:
+        .long   end_data - romstart
+loader_function:
+        .long   mmcif_loader
+loaded_code_offs:
+        .long   loaded_code - romstart
+loaded_code:
+#endif /* CONFIG_ROMIMAGE_MMCIF */
+
         /* copy the empty_zero_page contents to where vmlinux expects it */
-        mova    empty_zero_page_src, r0
+        mova    extra_data_pos, r0
+        mov.l   extra_data_size, r1
+        add     r1, r0
         mov.l   empty_zero_page_dst, r1
         mov     #(PAGE_SHIFT - 4), r4
         mov     #1, r3
@@ -37,7 +69,9 @@ romstart:
         mov     #PAGE_SHIFT, r4
         mov     #1, r1
         shld    r4, r1
-        mova    empty_zero_page_src, r0
+        mova    extra_data_pos, r0
+        add     r1, r0
+        mov.l   extra_data_size, r1
         add     r1, r0
         jmp     @r0
          nop
@@ -45,4 +79,6 @@ romstart:
         .align 2
 empty_zero_page_dst:
         .long   _text
-empty_zero_page_src:
+extra_data_pos:
+extra_data_size:
+        .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 @@
+/*
+ * sh7724 MMCIF loader
+ *
+ * Copyright (C) 2010 Magnus Damm
+ *
+ * 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/romimage.h>
+
+#define MMCIF_BASE      (void __iomem *)0xa4ca0000
+
+#define MSTPCR2         0xa4150038
+#define PTWCR           0xa4050146
+#define PTXCR           0xa4050148
+#define PSELA           0xa405014e
+#define PSELE           0xa4050156
+#define HIZCRC          0xa405015c
+#define DRVCRA          0xa405018a
+
+enum { MMCIF_PROGRESS_ENTER, MMCIF_PROGRESS_INIT,
+       MMCIF_PROGRESS_LOAD, MMCIF_PROGRESS_DONE };
+
+/* SH7724 specific MMCIF loader
+ *
+ * loads the romImage from an MMC card starting from block 512
+ * use the following line to write the romImage to an MMC card
+ * # dd if=arch/sh/boot/romImage of=/dev/sdx bs=512 seek=512
+ */
+asmlinkage void mmcif_loader(unsigned char *buf, unsigned long no_bytes)
+{
+        mmcif_update_progress(MMCIF_PROGRESS_ENTER);
+
+        /* enable clock to the MMCIF hardware block */
+        __raw_writel(__raw_readl(MSTPCR2) & ~0x20000000, MSTPCR2);
+
+        /* setup pins D7-D0 */
+        __raw_writew(0x0000, PTWCR);
+
+        /* setup pins MMC_CLK, MMC_CMD */
+        __raw_writew(__raw_readw(PTXCR) & ~0x000f, PTXCR);
+
+        /* select D3-D0 pin function */
+        __raw_writew(__raw_readw(PSELA) & ~0x2000, PSELA);
+
+        /* select D7-D4 pin function */
+        __raw_writew(__raw_readw(PSELE) & ~0x3000, PSELE);
+
+        /* disable Hi-Z for the MMC pins */
+        __raw_writew(__raw_readw(HIZCRC) & ~0x0620, HIZCRC);
+
+        /* high drive capability for MMC pins */
+        __raw_writew(__raw_readw(DRVCRA) | 0x3000, DRVCRA);
+
+        mmcif_update_progress(MMCIF_PROGRESS_INIT);
+
+        /* setup MMCIF hardware */
+        sh_mmcif_boot_init(MMCIF_BASE);
+
+        mmcif_update_progress(MMCIF_PROGRESS_LOAD);
+
+        /* load kernel via MMCIF interface */
+        sh_mmcif_boot_slurp(MMCIF_BASE, buf, no_bytes);
+
+        /* disable clock to the MMCIF hardware block */
+        __raw_writel(__raw_readl(MSTPCR2) | 0x20000000, MSTPCR2);
+
+        mmcif_update_progress(MMCIF_PROGRESS_DONE);
+}
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 @@
 SECTIONS
 {
   .text : {
+        zero_page_pos = .;
         *(.data)
+        end_data = .;
         }
 }
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index f689554e17c1..b237d525d592 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -39,6 +39,8 @@
 #include <asm/io_generic.h>
 #include <asm/io_trapped.h>
 
+#ifdef CONFIG_HAS_IOPORT
+
 #define inb(p)                  sh_mv.mv_inb((p))
 #define inw(p)                  sh_mv.mv_inw((p))
 #define inl(p)                  sh_mv.mv_inl((p))
@@ -60,6 +62,8 @@
 #define outsw(p,b,c)            sh_mv.mv_outsw((p), (b), (c))
 #define outsl(p,b,c)            sh_mv.mv_outsl((p), (b), (c))
 
+#endif
+
 #define __raw_writeb(v,a)       (__chk_io_ptr(a), *(volatile u8  __force *)(a) = (v))
 #define __raw_writew(v,a)       (__chk_io_ptr(a), *(volatile u16 __force *)(a) = (v))
 #define __raw_writel(v,a)       (__chk_io_ptr(a), *(volatile u32 __force *)(a) = (v))
@@ -240,6 +244,8 @@ __BUILD_MEMORY_STRING(q, u64)
 
 #define IO_SPACE_LIMIT 0xffffffff
 
+#ifdef CONFIG_HAS_IOPORT
+
 /*
  * This function provides a method for the generic case where a
  * board-specific ioport_map simply needs to return the port + some
@@ -255,6 +261,8 @@ static inline void __set_io_port_base(unsigned long pbase)
 
 #define __ioport_map(p, n) sh_mv.mv_ioport_map((p), (n))
 
+#endif
+
 /* We really want to try and get these to memcpy etc */
 void memcpy_fromio(void *, const volatile void __iomem *, unsigned long);
 void memcpy_toio(volatile void __iomem *, const void *, unsigned long);
diff --git a/arch/sh/include/asm/machvec.h b/arch/sh/include/asm/machvec.h
index bc0218cb72e1..a0b0cf79cf8a 100644
--- a/arch/sh/include/asm/machvec.h
+++ b/arch/sh/include/asm/machvec.h
@@ -19,6 +19,10 @@ struct sh_machine_vector {
         const char *mv_name;
         int mv_nr_irqs;
 
+        int (*mv_irq_demux)(int irq);
+        void (*mv_init_irq)(void);
+
+#ifdef CONFIG_HAS_IOPORT
         u8 (*mv_inb)(unsigned long);
         u16 (*mv_inw)(unsigned long);
         u32 (*mv_inl)(unsigned long);
@@ -40,12 +44,9 @@ struct sh_machine_vector {
         void (*mv_outsw)(unsigned long, const void *src, unsigned long count);
         void (*mv_outsl)(unsigned long, const void *src, unsigned long count);
 
-        int (*mv_irq_demux)(int irq);
-
-        void (*mv_init_irq)(void);
-
         void __iomem *(*mv_ioport_map)(unsigned long port, unsigned int size);
         void (*mv_ioport_unmap)(void __iomem *);
+#endif
 
         int (*mv_clk_init)(void);
         int (*mv_mode_pins)(void);
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7724.h b/arch/sh/include/cpu-sh4/cpu/sh7724.h
index fbbf550cc529..4c27b68789b3 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7724.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7724.h
@@ -9,6 +9,7 @@
  * MD3: BSC - Area0 Bus Width (16/32-bit) [CS0BCR.9,10]
  * MD5: BSC - Endian Mode (L: Big, H: Little) [CMNCR.3]
  * MD8: Test Mode
+ * BOOT: FBR - Boot Mode (L: MMCIF, H: Area0)
  */
 
 /* Pin Function Controller:
diff --git a/arch/sh/include/mach-common/mach/romimage.h b/arch/sh/include/mach-common/mach/romimage.h
index 267e24112d82..08fb42269ecd 100644
--- a/arch/sh/include/mach-common/mach/romimage.h
+++ b/arch/sh/include/mach-common/mach/romimage.h
@@ -1 +1,11 @@
+#ifdef __ASSEMBLY__
+
 /* do nothing here by default */
+
+#else /* __ASSEMBLY__ */
+
+extern inline void mmcif_update_progress(int nr)
+{
+}
+
+#endif /* __ASSEMBLY__ */
diff --git a/arch/sh/include/mach-ecovec24/mach/romimage.h b/arch/sh/include/mach-ecovec24/mach/romimage.h
index 1c8787ecb1c1..1dcf5e6c8d83 100644
--- a/arch/sh/include/mach-ecovec24/mach/romimage.h
+++ b/arch/sh/include/mach-ecovec24/mach/romimage.h
@@ -1,3 +1,5 @@
+#ifdef __ASSEMBLY__
+
 /* EcoVec board specific boot code:
  * converts the "partner-jet-script.txt" script into assembly
  * the assembly code is the first code to be executed in the romImage
@@ -18,3 +20,28 @@
         .align 2
 1 :     .long 0xa8000000
 2 :
+
+#else /* __ASSEMBLY__ */
+
+/* Ecovec board specific information:
+ *
+ * Set the following to enable MMCIF boot from the MMC card in CN12:
+ *
+ * DS1.5 = OFF (SH BOOT pin set to L)
+ * DS2.6 = OFF (Select MMCIF on CN12 instead of SDHI1)
+ * DS2.7 = ON  (Select MMCIF on CN12 instead of SDHI1)
+ *
+ */
+#define HIZCRA          0xa4050158
+#define PGDR            0xa405012c
+
+extern inline void mmcif_update_progress(int nr)
+{
+        /* disable Hi-Z for LED pins */
+        __raw_writew(__raw_readw(HIZCRA) & ~(1 << 1), HIZCRA);
+
+        /* update progress on LED4, LED5, LED6 and LED7 */
+        __raw_writeb(1 << (nr - 1), PGDR);
+}
+
+#endif /* __ASSEMBLY__ */
diff --git a/arch/sh/include/mach-kfr2r09/mach/romimage.h b/arch/sh/include/mach-kfr2r09/mach/romimage.h
index a110823f2bde..976256a323f2 100644
--- a/arch/sh/include/mach-kfr2r09/mach/romimage.h
+++ b/arch/sh/include/mach-kfr2r09/mach/romimage.h
@@ -1,3 +1,5 @@
+#ifdef __ASSEMBLY__
+
 /* kfr2r09 board specific boot code:
  * converts the "partner-jet-script.txt" script into assembly
  * the assembly code is the first code to be executed in the romImage
@@ -18,3 +20,11 @@
         .align 2
 1:      .long 0xa8000000
 2:
+
+#else /* __ASSEMBLY__ */
+
+extern inline void mmcif_update_progress(int nr)
+{
+}
+
+#endif /* __ASSEMBLY__ */
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index 650b92f00ee5..e25f3c69525d 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -12,7 +12,7 @@ endif
 CFLAGS_REMOVE_return_address.o = -pg
 
 obj-y   := clkdev.o debugtraps.o dma-nommu.o dumpstack.o                \
-           idle.o io.o io_generic.o irq.o                               \
+           idle.o io.o irq.o                                            \
            irq_$(BITS).o machvec.o nmi_debug.o process.o                \
            process_$(BITS).o ptrace_$(BITS).o                           \
            reboot.o return_address.o                                    \
@@ -39,6 +39,7 @@ obj-$(CONFIG_DUMP_CODE)		+= disassemble.o
 obj-$(CONFIG_HIBERNATION)       += swsusp.o
 obj-$(CONFIG_DWARF_UNWINDER)    += dwarf.o
 obj-$(CONFIG_PERF_EVENTS)       += perf_event.o perf_callchain.o
+obj-$(CONFIG_HAS_IOPORT)        += io_generic.o
 
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)                += hw_breakpoint.o
 obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST)     += localtimer.o
diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel/dwarf.c
index 886d7d83ace3..49c09c7d5b77 100644
--- a/arch/sh/kernel/dwarf.c
+++ b/arch/sh/kernel/dwarf.c
@@ -49,6 +49,8 @@ static DEFINE_SPINLOCK(dwarf_fde_lock);
 
 static struct dwarf_cie *cached_cie;
 
+static unsigned int dwarf_unwinder_ready;
+
 /**
  *      dwarf_frame_alloc_reg - allocate memory for a DWARF register
  *      @frame: the DWARF frame whose list of registers we insert on
@@ -582,6 +584,13 @@ struct dwarf_frame *dwarf_unwind_stack(unsigned long pc,
         unsigned long addr;
 
         /*
+         * If we've been called in to before initialization has
+         * completed, bail out immediately.
+         */
+        if (!dwarf_unwinder_ready)
+                return NULL;
+
+        /*
          * If we're starting at the top of the stack we need get the
          * contents of a physical register to get the CFA in order to
          * begin the virtual unwinding of the stack.
@@ -1167,7 +1176,7 @@ void module_dwarf_cleanup(struct module *mod)
  */
 static int __init dwarf_unwinder_init(void)
 {
-        int err;
+        int err = -ENOMEM;
 
         dwarf_frame_cachep = kmem_cache_create("dwarf_frames",
                         sizeof(struct dwarf_frame), 0,
@@ -1181,11 +1190,15 @@ static int __init dwarf_unwinder_init(void)
                                           mempool_alloc_slab,
                                           mempool_free_slab,
                                           dwarf_frame_cachep);
+        if (!dwarf_frame_pool)
+                goto out;
 
         dwarf_reg_pool = mempool_create(DWARF_REG_MIN_REQ,
                                          mempool_alloc_slab,
                                          mempool_free_slab,
                                          dwarf_reg_cachep);
+        if (!dwarf_reg_pool)
+                goto out;
 
         err = dwarf_parse_section(__start_eh_frame, __stop_eh_frame, NULL);
         if (err)
@@ -1195,11 +1208,13 @@ static int __init dwarf_unwinder_init(void)
         if (err)
                 goto out;
 
+        dwarf_unwinder_ready = 1;
+
         return 0;
 
 out:
         printk(KERN_ERR "Failed to initialise DWARF unwinder: %d\n", err);
         dwarf_unwinder_cleanup();
-        return -EINVAL;
+        return err;
 }
 early_initcall(dwarf_unwinder_init);
diff --git a/arch/sh/kernel/io.c b/arch/sh/kernel/io.c
index 4770c241c679..5c51b794ba2a 100644
--- a/arch/sh/kernel/io.c
+++ b/arch/sh/kernel/io.c
@@ -112,25 +112,3 @@ void memset_io(volatile void __iomem *dst, int c, unsigned long count)
         }
 }
 EXPORT_SYMBOL(memset_io);
-
-#ifndef CONFIG_GENERIC_IOMAP
-
-void __iomem *ioport_map(unsigned long port, unsigned int nr)
-{
-        void __iomem *ret;
-
-        ret = __ioport_map_trapped(port, nr);
-        if (ret)
-                return ret;
-
-        return __ioport_map(port, nr);
-}
-EXPORT_SYMBOL(ioport_map);
-
-void ioport_unmap(void __iomem *addr)
-{
-        sh_mv.mv_ioport_unmap(addr);
-}
-EXPORT_SYMBOL(ioport_unmap);
-
-#endif /* CONFIG_GENERIC_IOMAP */
diff --git a/arch/sh/kernel/io_generic.c b/arch/sh/kernel/io_generic.c
index e1e1dbd19557..447d78f666f9 100644
--- a/arch/sh/kernel/io_generic.c
+++ b/arch/sh/kernel/io_generic.c
@@ -158,3 +158,23 @@ void __iomem *generic_ioport_map(unsigned long addr, unsigned int size)
 void generic_ioport_unmap(void __iomem *addr)
 {
 }
+
+#ifndef CONFIG_GENERIC_IOMAP
+void __iomem *ioport_map(unsigned long port, unsigned int nr)
+{
+        void __iomem *ret;
+
+        ret = __ioport_map_trapped(port, nr);
+        if (ret)
+                return ret;
+
+        return __ioport_map(port, nr);
+}
+EXPORT_SYMBOL(ioport_map);
+
+void ioport_unmap(void __iomem *addr)
+{
+        sh_mv.mv_ioport_unmap(addr);
+}
+EXPORT_SYMBOL(ioport_unmap);
+#endif /* CONFIG_GENERIC_IOMAP */
diff --git a/arch/sh/kernel/io_trapped.c b/arch/sh/kernel/io_trapped.c
index 4a8bb4eeb8ad..2947d2bd1291 100644
--- a/arch/sh/kernel/io_trapped.c
+++ b/arch/sh/kernel/io_trapped.c
@@ -91,10 +91,14 @@ int register_trapped_io(struct trapped_io *tiop)
         tiop->magic = IO_TRAPPED_MAGIC;
         INIT_LIST_HEAD(&tiop->list);
         spin_lock_irq(&trapped_lock);
+#ifdef CONFIG_HAS_IOPORT
         if (flags & IORESOURCE_IO)
                 list_add(&tiop->list, &trapped_io);
+#endif
+#ifdef CONFIG_HAS_IOMEM
         if (flags & IORESOURCE_MEM)
                 list_add(&tiop->list, &trapped_mem);
+#endif
         spin_unlock_irq(&trapped_lock);
 
         return 0;
diff --git a/arch/sh/kernel/machvec.c b/arch/sh/kernel/machvec.c
index 85cfaf916fdc..9f9bb63616ad 100644
--- a/arch/sh/kernel/machvec.c
+++ b/arch/sh/kernel/machvec.c
@@ -118,6 +118,14 @@ void __init sh_mv_setup(void)
                 sh_mv.mv_##elem = generic_##elem; \
 } while (0)
 
+#ifdef CONFIG_HAS_IOPORT
+
+#ifdef P2SEG
+        __set_io_port_base(P2SEG);
+#else
+        __set_io_port_base(0);
+#endif
+
         mv_set(inb);    mv_set(inw);    mv_set(inl);
         mv_set(outb);   mv_set(outw);   mv_set(outl);
 
@@ -129,16 +137,13 @@ void __init sh_mv_setup(void)
 
         mv_set(ioport_map);
         mv_set(ioport_unmap);
+
+#endif
+
         mv_set(irq_demux);
         mv_set(mode_pins);
         mv_set(mem_init);
 
         if (!sh_mv.mv_nr_irqs)
                 sh_mv.mv_nr_irqs = NR_IRQS;
-
-#ifdef P2SEG
-        __set_io_port_base(P2SEG);
-#else
-        __set_io_port_base(0);
-#endif
 }
diff --git a/arch/sh/kernel/return_address.c b/arch/sh/kernel/return_address.c
index cbf1dd5372b2..5124aeb28c3f 100644
--- a/arch/sh/kernel/return_address.c
+++ b/arch/sh/kernel/return_address.c
@@ -24,6 +24,8 @@ void *return_address(unsigned int depth)
                 struct dwarf_frame *tmp;
 
                 tmp = dwarf_unwind_stack(ra, frame);
+                if (!tmp)
+                        return NULL;
 
                 if (frame)
                         dwarf_free_frame(frame);