[PATCH 08/12] ARM: shmobile: sh7372: Remove ZBOOT MMC/SDHI support

Simon Horman
2015-02-26T06:22:09Z

Remove the sh7372 implementation and the shared ZBOOT MMC
and SDHI support code from the compressed ARM boot loader.

With this in place it is no longer possible to boot any
self-contained kernel for sh7372 directly from Mask ROM
via SDHI and MMCIF hardware.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
arch/arm/Kconfig | 29 --
arch/arm/boot/compressed/Makefile | 15 -
arch/arm/boot/compressed/head-shmobile.S | 30 --
arch/arm/boot/compressed/mmcif-sh7372.c | 88 -----
arch/arm/boot/compressed/sdhi-sh7372.c | 95 -----
arch/arm/boot/compressed/sdhi-shmobile.c | 449 ----------------------
arch/arm/boot/compressed/sdhi-shmobile.h | 11 -
arch/arm/mach-shmobile/include/mach/mmc.h | 11 -
arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h | 21 -
arch/arm/mach-shmobile/include/mach/sdhi.h | 16 -
10 files changed, 765 deletions(-)
delete mode 100644 arch/arm/boot/compressed/mmcif-sh7372.c
delete mode 100644 arch/arm/boot/compressed/sdhi-sh7372.c
delete mode 100644 arch/arm/boot/compressed/sdhi-shmobile.c
delete mode 100644 arch/arm/boot/compressed/sdhi-shmobile.h
delete mode 100644 arch/arm/mach-shmobile/include/mach/mmc.h
delete mode 100644 arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h
delete mode 100644 arch/arm/mach-shmobile/include/mach/sdhi.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9f1f09a..5c915e5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1848,35 +1848,6 @@ config ZBOOT_ROM
Say Y here if you intend to execute your compressed kernel image
(zImage) directly from ROM or flash. If unsure, say N.

-choice
- prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
- depends on ZBOOT_ROM && ARCH_SH7372
- default ZBOOT_ROM_NONE
- help
- Include experimental SD/MMC loading code in the ROM-able zImage.
- With this enabled it is possible to write the ROM-able zImage
- kernel image to an MMC or SD card and boot the kernel straight
- from the reset vector. At reset the processor Mask ROM will load
- the first part of the ROM-able zImage which in turn loads the
- rest the kernel image to RAM.
-
-config ZBOOT_ROM_NONE
- bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
- help
- Do not load image from SD or MMC
-
-config ZBOOT_ROM_MMCIF
- bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
- help
- Load image from MMCIF hardware block.
-
-config ZBOOT_ROM_SH_MOBILE_SDHI
- bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
- help
- Load image from SDHI hardware block
-
-endchoice
-
config ARM_APPENDED_DTB
bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
depends on OF
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 3ea230a..6e1fb2b 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -6,21 +6,6 @@

OBJS =

-# Ensure that MMCIF loader code appears early in the image
-# to minimise that number of bocks that have to be read in
-# order to load it.
-ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y)
-OBJS += mmcif-sh7372.o
-endif
-
-# Ensure that SDHI loader code appears early in the image
-# to minimise that number of bocks that have to be read in
-# order to load it.
-ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI),y)
-OBJS += sdhi-shmobile.o
-OBJS += sdhi-sh7372.o
-endif
-
AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
HEAD = head.o
OBJS += misc.o decompress.o
diff --git a/arch/arm/boot/compressed/head-shmobile.S b/arch/arm/boot/compressed/head-shmobile.S
index e7f8092..22a7525 100644
--- a/arch/arm/boot/compressed/head-shmobile.S
+++ b/arch/arm/boot/compressed/head-shmobile.S
@@ -25,36 +25,6 @@
/* load board-specific initialization code */
#include <mach/zboot.h>

-#if defined(CONFIG_ZBOOT_ROM_MMCIF) || defined(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI)
- /* Load image from MMC/SD */
- adr sp, __tmp_stack + 256
- ldr r0, __image_start
- ldr r1, __image_end
- subs r1, r1, r0
- ldr r0, __load_base
- bl mmc_loader
-
- /* Jump to loaded code */
- ldr r0, __loaded
- ldr r1, __image_start
- sub r0, r0, r1
- ldr r1, __load_base
- add pc, r0, r1
-
-__image_start:
- .long _start
-__image_end:
- .long _got_end
-__load_base:
- .long MEMORY_START + 0x02000000 @ Load at 32Mb into SDRAM
-__loaded:
- .long __continue
- .align
-__tmp_stack:
- .space 256
-__continue:
-#endif /* CONFIG_ZBOOT_ROM_MMC || CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI */
-
adr r0, dtb_info
ldmia r0, {r1, r3, r4, r5, r7}

diff --git a/arch/arm/boot/compressed/mmcif-sh7372.c b/arch/arm/boot/compressed/mmcif-sh7372.c
deleted file mode 100644
index 672ae95..0000000
--- a/arch/arm/boot/compressed/mmcif-sh7372.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * 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 <linux/mmc/boot.h>
-#include <mach/mmc.h>
-
-#define MMCIF_BASE (void __iomem *)0xe6bd0000
-
-#define PORT84CR (void __iomem *)0xe6050054
-#define PORT85CR (void __iomem *)0xe6050055
-#define PORT86CR (void __iomem *)0xe6050056
-#define PORT87CR (void __iomem *)0xe6050057
-#define PORT88CR (void __iomem *)0xe6050058
-#define PORT89CR (void __iomem *)0xe6050059
-#define PORT90CR (void __iomem *)0xe605005a
-#define PORT91CR (void __iomem *)0xe605005b
-#define PORT92CR (void __iomem *)0xe605005c
-#define PORT99CR (void __iomem *)0xe6050063
-
-#define SMSTPCR3 (void __iomem *)0xe615013c
-
-/* SH7372 specific MMCIF loader
- *
- * loads the zImage from an MMC card starting from block 1.
- *
- * The image must be start with a vrl4 header and
- * the zImage must start at offset 512 of the image. That is,
- * at block 2 (=byte 1024) on the media
- *
- * Use the following line to write the vrl4 formated zImage
- * to an MMC card
- * # dd if=vrl4.out of=/dev/sdx bs=512 seek=1
- */
-asmlinkage void mmc_loader(unsigned char *buf, unsigned long len)
-{
- mmc_init_progress();
- mmc_update_progress(MMC_PROGRESS_ENTER);
-
- /* Initialise MMC
- * registers: PORT84CR-PORT92CR
- * (MMCD0_0-MMCD0_7,MMCCMD0 Control)
- * value: 0x04 - select function 4
- */
- __raw_writeb(0x04, PORT84CR);
- __raw_writeb(0x04, PORT85CR);
- __raw_writeb(0x04, PORT86CR);
- __raw_writeb(0x04, PORT87CR);
- __raw_writeb(0x04, PORT88CR);
- __raw_writeb(0x04, PORT89CR);
- __raw_writeb(0x04, PORT90CR);
- __raw_writeb(0x04, PORT91CR);
- __raw_writeb(0x04, PORT92CR);
-
- /* Initialise MMC
- * registers: PORT99CR (MMCCLK0 Control)
- * value: 0x10 | 0x04 - enable output | select function 4
- */
- __raw_writeb(0x14, PORT99CR);
-
- /* Enable clock to MMC hardware block */
- __raw_writel(__raw_readl(SMSTPCR3) & ~(1 << 12), SMSTPCR3);
-
- mmc_update_progress(MMC_PROGRESS_INIT);
-
- /* setup MMCIF hardware */
- sh_mmcif_boot_init(MMCIF_BASE);
-
- mmc_update_progress(MMC_PROGRESS_LOAD);
-
- /* load kernel via MMCIF interface */
- sh_mmcif_boot_do_read(MMCIF_BASE, 2, /* Kernel is@block 2 */
- (len + SH_MMCIF_BBS - 1) / SH_MMCIF_BBS, buf);
-
-
- /* Disable clock to MMC hardware block */
- __raw_writel(__raw_readl(SMSTPCR3) | (1 << 12), SMSTPCR3);
-
- mmc_update_progress(MMC_PROGRESS_DONE);
-}
diff --git a/arch/arm/boot/compressed/sdhi-sh7372.c b/arch/arm/boot/compressed/sdhi-sh7372.c
deleted file mode 100644
index d279294..0000000
--- a/arch/arm/boot/compressed/sdhi-sh7372.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * SuperH Mobile SDHI
- *
- * Copyright (C) 2010 Magnus Damm
- * Copyright (C) 2010 Kuninori Morimoto
- * 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.
- *
- * Parts inspired by u-boot
- */
-
-#include <linux/io.h>
-#include <mach/mmc.h>
-#include <linux/mmc/boot.h>
-#include <linux/mmc/tmio.h>
-
-#include "sdhi-shmobile.h"
-
-#define PORT179CR 0xe60520b3
-#define PORT180CR 0xe60520b4
-#define PORT181CR 0xe60520b5
-#define PORT182CR 0xe60520b6
-#define PORT183CR 0xe60520b7
-#define PORT184CR 0xe60520b8
-
-#define SMSTPCR3 0xe615013c
-
-#define CR_INPUT_ENABLE 0x10
-#define CR_FUNCTION1 0x01
-
-#define SDHI1_BASE (void __iomem *)0xe6860000
-#define SDHI_BASE SDHI1_BASE
-
-/* SuperH Mobile SDHI loader
- *
- * loads the zImage from an SD card starting from block 0
- * on physical partition 1
- *
- * The image must be start with a vrl4 header and
- * the zImage must start at offset 512 of the image. That is,
- * at block 1 (=byte 512) of physical partition 1
- *
- * Use the following line to write the vrl4 formated zImage
- * to an SD card
- * # dd if=vrl4.out of=/dev/sdx bs=512
- */
-asmlinkage void mmc_loader(unsigned short *buf, unsigned long len)
-{
- int high_capacity;
-
- mmc_init_progress();
-
- mmc_update_progress(MMC_PROGRESS_ENTER);
- /* Initialise SDHI1 */
- /* PORT184CR: GPIO_FN_SDHICMD1 Control */
- __raw_writeb(CR_FUNCTION1, PORT184CR);
- /* PORT179CR: GPIO_FN_SDHICLK1 Control */
- __raw_writeb(CR_INPUT_ENABLE|CR_FUNCTION1, PORT179CR);
- /* PORT181CR: GPIO_FN_SDHID1_3 Control */
- __raw_writeb(CR_FUNCTION1, PORT183CR);
- /* PORT182CR: GPIO_FN_SDHID1_2 Control */
- __raw_writeb(CR_FUNCTION1, PORT182CR);
- /* PORT183CR: GPIO_FN_SDHID1_1 Control */
- __raw_writeb(CR_FUNCTION1, PORT181CR);
- /* PORT180CR: GPIO_FN_SDHID1_0 Control */
- __raw_writeb(CR_FUNCTION1, PORT180CR);
-
- /* Enable clock to SDHI1 hardware block */
- __raw_writel(__raw_readl(SMSTPCR3) & ~(1 << 13), SMSTPCR3);
-
- /* setup SDHI hardware */
- mmc_update_progress(MMC_PROGRESS_INIT);
- high_capacity = sdhi_boot_init(SDHI_BASE);
- if (high_capacity < 0)
- goto err;
-
- mmc_update_progress(MMC_PROGRESS_LOAD);
- /* load kernel */
- if (sdhi_boot_do_read(SDHI_BASE, high_capacity,
- 0, /* Kernel is@block 1 */
- (len + TMIO_BBS - 1) / TMIO_BBS, buf))
- goto err;
-
- /* Disable clock to SDHI1 hardware block */
- __raw_writel(__raw_readl(SMSTPCR3) | (1 << 13), SMSTPCR3);
-
- mmc_update_progress(MMC_PROGRESS_DONE);
-
- return;
-err:
- for(;;);
-}
diff --git a/arch/arm/boot/compressed/sdhi-shmobile.c b/arch/arm/boot/compressed/sdhi-shmobile.c
deleted file mode 100644
index bd3d469..0000000
--- a/arch/arm/boot/compressed/sdhi-shmobile.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * SuperH Mobile SDHI
- *
- * Copyright (C) 2010 Magnus Damm
- * Copyright (C) 2010 Kuninori Morimoto
- * 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.
- *
- * Parts inspired by u-boot
- */
-
-#include <linux/io.h>
-#include <linux/mmc/host.h>
-#include <linux/mmc/core.h>
-#include <linux/mmc/mmc.h>
-#include <linux/mmc/sd.h>
-#include <linux/mmc/tmio.h>
-#include <mach/sdhi.h>
-
-#define OCR_FASTBOOT (1<<29)
-#define OCR_HCS (1<<30)
-#define OCR_BUSY (1<<31)
-
-#define RESP_CMD12 0x00000030
-
-static inline u16 sd_ctrl_read16(void __iomem *base, int addr)
-{
- return __raw_readw(base + addr);
-}
-
-static inline u32 sd_ctrl_read32(void __iomem *base, int addr)
-{
- return __raw_readw(base + addr) |
- __raw_readw(base + addr + 2) << 16;
-}
-
-static inline void sd_ctrl_write16(void __iomem *base, int addr, u16 val)
-{
- __raw_writew(val, base + addr);
-}
-
-static inline void sd_ctrl_write32(void __iomem *base, int addr, u32 val)
-{
- __raw_writew(val, base + addr);
- __raw_writew(val >> 16, base + addr + 2);
-}
-
-#define ALL_ERROR (TMIO_STAT_CMD_IDX_ERR | TMIO_STAT_CRCFAIL | \
- TMIO_STAT_STOPBIT_ERR | TMIO_STAT_DATATIMEOUT | \
- TMIO_STAT_RXOVERFLOW | TMIO_STAT_TXUNDERRUN | \
- TMIO_STAT_CMDTIMEOUT | TMIO_STAT_ILL_ACCESS | \
- TMIO_STAT_ILL_FUNC)
-
-static int sdhi_intr(void __iomem *base)
-{
- unsigned long state = sd_ctrl_read32(base, CTL_STATUS);
-
- if (state & ALL_ERROR) {
- sd_ctrl_write32(base, CTL_STATUS, ~ALL_ERROR);
- sd_ctrl_write32(base, CTL_IRQ_MASK,
- ALL_ERROR |
- sd_ctrl_read32(base, CTL_IRQ_MASK));
- return -EINVAL;
- }
- if (state & TMIO_STAT_CMDRESPEND) {
- sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_CMDRESPEND);
- sd_ctrl_write32(base, CTL_IRQ_MASK,
- TMIO_STAT_CMDRESPEND |
- sd_ctrl_read32(base, CTL_IRQ_MASK));
- return 0;
- }
- if (state & TMIO_STAT_RXRDY) {
- sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_RXRDY);
- sd_ctrl_write32(base, CTL_IRQ_MASK,
- TMIO_STAT_RXRDY | TMIO_STAT_TXUNDERRUN |
- sd_ctrl_read32(base, CTL_IRQ_MASK));
- return 0;
- }
- if (state & TMIO_STAT_DATAEND) {
- sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_DATAEND);
- sd_ctrl_write32(base, CTL_IRQ_MASK,
- TMIO_STAT_DATAEND |
- sd_ctrl_read32(base, CTL_IRQ_MASK));
- return 0;
- }
-
- return -EAGAIN;
-}
-
-static int sdhi_boot_wait_resp_end(void __iomem *base)
-{
- int err = -EAGAIN, timeout = 10000000;
-
- while (timeout--) {
- err = sdhi_intr(base);
- if (err != -EAGAIN)
- break;
- udelay(1);
- }
-
- return err;
-}
-
-/* SDHI_CLK_CTRL */
-#define CLK_MMC_ENABLE (1 << 8)
-#define CLK_MMC_INIT (1 << 6) /* clk / 256 */
-
-static void sdhi_boot_mmc_clk_stop(void __iomem *base)
-{
- sd_ctrl_write16(base, CTL_CLK_AND_WAIT_CTL, 0x0000);
- msleep(10);
- sd_ctrl_write16(base, CTL_SD_CARD_CLK_CTL, ~CLK_MMC_ENABLE &
- sd_ctrl_read16(base, CTL_SD_CARD_CLK_CTL));
- msleep(10);
-}
-
-static void sdhi_boot_mmc_clk_start(void __iomem *base)
-{
- sd_ctrl_write16(base, CTL_SD_CARD_CLK_CTL, CLK_MMC_ENABLE |
- sd_ctrl_read16(base, CTL_SD_CARD_CLK_CTL));
- msleep(10);
- sd_ctrl_write16(base, CTL_CLK_AND_WAIT_CTL, CLK_MMC_ENABLE);
- msleep(10);
-}
-
-static void sdhi_boot_reset(void __iomem *base)
-{
- sd_ctrl_write16(base, CTL_RESET_SD, 0x0000);
- msleep(10);
- sd_ctrl_write16(base, CTL_RESET_SD, 0x0001);
- msleep(10);
-}
-
-/* Set MMC clock / power.
- * Note: This controller uses a simple divider scheme therefore it cannot
- * run a MMC card at full speed (20MHz). The max clock is 24MHz on SD, but as
- * MMC wont run that fast, it has to be clocked@12MHz which is the next
- * slowest setting.
- */
-static int sdhi_boot_mmc_set_ios(void __iomem *base, struct mmc_ios *ios)
-{
- if (sd_ctrl_read32(base, CTL_STATUS) & TMIO_STAT_CMD_BUSY)
- return -EBUSY;
-
- if (ios->clock)
- sd_ctrl_write16(base, CTL_SD_CARD_CLK_CTL,
- ios->clock | CLK_MMC_ENABLE);
-
- /* Power sequence - OFF -> ON -> UP */
- switch (ios->power_mode) {
- case MMC_POWER_OFF: /* power down SD bus */
- sdhi_boot_mmc_clk_stop(base);
- break;
- case MMC_POWER_ON: /* power up SD bus */
- break;
- case MMC_POWER_UP: /* start bus clock */
- sdhi_boot_mmc_clk_start(base);
- break;
- }
-
- switch (ios->bus_width) {
- case MMC_BUS_WIDTH_1:
- sd_ctrl_write16(base, CTL_SD_MEM_CARD_OPT, 0x80e0);
- break;
- case MMC_BUS_WIDTH_4:
- sd_ctrl_write16(base, CTL_SD_MEM_CARD_OPT, 0x00e0);
- break;
- }
-
- /* Let things settle. delay taken from winCE driver */
- udelay(140);
-
- return 0;
-}
-
-/* These are the bitmasks the tmio chip requires to implement the MMC response
- * types. Note that R1 and R6 are the same in this scheme. */
-#define RESP_NONE 0x0300
-#define RESP_R1 0x0400
-#define RESP_R1B 0x0500
-#define RESP_R2 0x0600
-#define RESP_R3 0x0700
-#define DATA_PRESENT 0x0800
-#define TRANSFER_READ 0x1000
-
-static int sdhi_boot_request(void __iomem *base, struct mmc_command *cmd)
-{
- int err, c = cmd->opcode;
-
- switch (mmc_resp_type(cmd)) {
- case MMC_RSP_NONE: c |= RESP_NONE; break;
- case MMC_RSP_R1: c |= RESP_R1; break;
- case MMC_RSP_R1B: c |= RESP_R1B; break;
- case MMC_RSP_R2: c |= RESP_R2; break;
- case MMC_RSP_R3: c |= RESP_R3; break;
- default:
- return -EINVAL;
- }
-
- /* No interrupts so this may not be cleared */
- sd_ctrl_write32(base, CTL_STATUS, ~TMIO_STAT_CMDRESPEND);
-
- sd_ctrl_write32(base, CTL_IRQ_MASK, TMIO_STAT_CMDRESPEND |
- sd_ctrl_read32(base, CTL_IRQ_MASK));
- sd_ctrl_write32(base, CTL_ARG_REG, cmd->arg);
- sd_ctrl_write16(base, CTL_SD_CMD, c);
-
-
- sd_ctrl_write32(base, CTL_IRQ_MASK,
- ~(TMIO_STAT_CMDRESPEND | ALL_ERROR) &
- sd_ctrl_read32(base, CTL_IRQ_MASK));
-
- err = sdhi_boot_wait_resp_end(base);
- if (err)
- return err;
-
- cmd->resp[0] = sd_ctrl_read32(base, CTL_RESPONSE);
-
- return 0;
-}
-
-static int sdhi_boot_do_read_single(void __iomem *base, int high_capacity,
- unsigned long block, unsigned short *buf)
-{
- int err, i;
-
- /* CMD17 - Read */
- {
- struct mmc_command cmd;
-
- cmd.opcode = MMC_READ_SINGLE_BLOCK | \
- TRANSFER_READ | DATA_PRESENT;
- if (high_capacity)
- cmd.arg = block;
- else
- cmd.arg = block * TMIO_BBS;
- cmd.flags = MMC_RSP_R1;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
- }
-
- sd_ctrl_write32(base, CTL_IRQ_MASK,
- ~(TMIO_STAT_DATAEND | TMIO_STAT_RXRDY |
- TMIO_STAT_TXUNDERRUN) &
- sd_ctrl_read32(base, CTL_IRQ_MASK));
- err = sdhi_boot_wait_resp_end(base);
- if (err)
- return err;
-
- sd_ctrl_write16(base, CTL_SD_XFER_LEN, TMIO_BBS);
- for (i = 0; i < TMIO_BBS / sizeof(*buf); i++)
- *buf++ = sd_ctrl_read16(base, RESP_CMD12);
-
- err = sdhi_boot_wait_resp_end(base);
- if (err)
- return err;
-
- return 0;
-}
-
-int sdhi_boot_do_read(void __iomem *base, int high_capacity,
- unsigned long offset, unsigned short count,
- unsigned short *buf)
-{
- unsigned long i;
- int err = 0;
-
- for (i = 0; i < count; i++) {
- err = sdhi_boot_do_read_single(base, high_capacity, offset + i,
- buf + (i * TMIO_BBS /
- sizeof(*buf)));
- if (err)
- return err;
- }
-
- return 0;
-}
-
-#define VOLTAGES (MMC_VDD_32_33 | MMC_VDD_33_34)
-
-int sdhi_boot_init(void __iomem *base)
-{
- bool sd_v2 = false, sd_v1_0 = false;
- unsigned short cid;
- int err, high_capacity = 0;
-
- sdhi_boot_mmc_clk_stop(base);
- sdhi_boot_reset(base);
-
- /* mmc0: clock 400000Hz busmode 1 powermode 2 cs 0 Vdd 21 width 0 timing 0 */
- {
- struct mmc_ios ios;
- ios.power_mode = MMC_POWER_ON;
- ios.bus_width = MMC_BUS_WIDTH_1;
- ios.clock = CLK_MMC_INIT;
- err = sdhi_boot_mmc_set_ios(base, &ios);
- if (err)
- return err;
- }
-
- /* CMD0 */
- {
- struct mmc_command cmd;
- msleep(1);
- cmd.opcode = MMC_GO_IDLE_STATE;
- cmd.arg = 0;
- cmd.flags = MMC_RSP_NONE;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
- msleep(2);
- }
-
- /* CMD8 - Test for SD version 2 */
- {
- struct mmc_command cmd;
- cmd.opcode = SD_SEND_IF_COND;
- cmd.arg = (VOLTAGES != 0) << 8 | 0xaa;
- cmd.flags = MMC_RSP_R1;
- err = sdhi_boot_request(base, &cmd); /* Ignore error */
- if ((cmd.resp[0] & 0xff) == 0xaa)
- sd_v2 = true;
- }
-
- /* CMD55 - Get OCR (SD) */
- {
- int timeout = 1000;
- struct mmc_command cmd;
-
- cmd.arg = 0;
-
- do {
- cmd.opcode = MMC_APP_CMD;
- cmd.flags = MMC_RSP_R1;
- cmd.arg = 0;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- break;
-
- cmd.opcode = SD_APP_OP_COND;
- cmd.flags = MMC_RSP_R3;
- cmd.arg = (VOLTAGES & 0xff8000);
- if (sd_v2)
- cmd.arg |= OCR_HCS;
- cmd.arg |= OCR_FASTBOOT;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- break;
-
- msleep(1);
- } while((!(cmd.resp[0] & OCR_BUSY)) && --timeout);
-
- if (!err && timeout) {
- if (!sd_v2)
- sd_v1_0 = true;
- high_capacity = (cmd.resp[0] & OCR_HCS) == OCR_HCS;
- }
- }
-
- /* CMD1 - Get OCR (MMC) */
- if (!sd_v2 && !sd_v1_0) {
- int timeout = 1000;
- struct mmc_command cmd;
-
- do {
- cmd.opcode = MMC_SEND_OP_COND;
- cmd.arg = VOLTAGES | OCR_HCS;
- cmd.flags = MMC_RSP_R3;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
-
- msleep(1);
- } while((!(cmd.resp[0] & OCR_BUSY)) && --timeout);
-
- if (!timeout)
- return -EAGAIN;
-
- high_capacity = (cmd.resp[0] & OCR_HCS) == OCR_HCS;
- }
-
- /* CMD2 - Get CID */
- {
- struct mmc_command cmd;
- cmd.opcode = MMC_ALL_SEND_CID;
- cmd.arg = 0;
- cmd.flags = MMC_RSP_R2;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
- }
-
- /* CMD3
- * MMC: Set the relative address
- * SD: Get the relative address
- * Also puts the card into the standby state
- */
- {
- struct mmc_command cmd;
- cmd.opcode = MMC_SET_RELATIVE_ADDR;
- cmd.arg = 0;
- cmd.flags = MMC_RSP_R1;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
- cid = cmd.resp[0] >> 16;
- }
-
- /* CMD9 - Get CSD */
- {
- struct mmc_command cmd;
- cmd.opcode = MMC_SEND_CSD;
- cmd.arg = cid << 16;
- cmd.flags = MMC_RSP_R2;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
- }
-
- /* CMD7 - Select the card */
- {
- struct mmc_command cmd;
- cmd.opcode = MMC_SELECT_CARD;
- //cmd.arg = rca << 16;
- cmd.arg = cid << 16;
- //cmd.flags = MMC_RSP_R1B;
- cmd.flags = MMC_RSP_R1;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
- }
-
- /* CMD16 - Set the block size */
- {
- struct mmc_command cmd;
- cmd.opcode = MMC_SET_BLOCKLEN;
- cmd.arg = TMIO_BBS;
- cmd.flags = MMC_RSP_R1;
- err = sdhi_boot_request(base, &cmd);
- if (err)
- return err;
- }
-
- return high_capacity;
-}
diff --git a/arch/arm/boot/compressed/sdhi-shmobile.h b/arch/arm/boot/compressed/sdhi-shmobile.h
deleted file mode 100644
index 92eaa09..0000000
--- a/arch/arm/boot/compressed/sdhi-shmobile.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef SDHI_MOBILE_H
-#define SDHI_MOBILE_H
-
-#include <linux/compiler.h>
-
-int sdhi_boot_do_read(void __iomem *base, int high_capacity,
- unsigned long offset, unsigned short count,
- unsigned short *buf);
-int sdhi_boot_init(void __iomem *base);
-
-#endif
diff --git a/arch/arm/mach-shmobile/include/mach/mmc.h b/arch/arm/mach-shmobile/include/mach/mmc.h
deleted file mode 100644
index b7d68e4..0000000
--- a/arch/arm/mach-shmobile/include/mach/mmc.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef MMC_H
-#define MMC_H
-
-/**************************************************
- *
- * board specific settings
- *
- **************************************************/
-
-#error "unsupported board."
-#endif /* MMC_H */
diff --git a/arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h b/arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h
deleted file mode 100644
index 4a81b01..0000000
--- a/arch/arm/mach-shmobile/include/mach/sdhi-sh7372.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef SDHI_SH7372_H
-#define SDHI_SH7372_H
-
-#define SDGENCNTA 0xfe40009c
-
-/* The countdown of SDGENCNTA is controlled by
- * ZB3D2CLK which runs at 149.5MHz.
- * That is 149.5ticks/us. Approximate this as 150ticks/us.
- */
-static void udelay(int us)
-{
- __raw_writel(us * 150, SDGENCNTA);
- while(__raw_readl(SDGENCNTA)) ;
-}
-
-static void msleep(int ms)
-{
- udelay(ms * 1000);
-}
-
-#endif
diff --git a/arch/arm/mach-shmobile/include/mach/sdhi.h b/arch/arm/mach-shmobile/include/mach/sdhi.h
deleted file mode 100644
index 0ec9e69..0000000
--- a/arch/arm/mach-shmobile/include/mach/sdhi.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef SDHI_H
-#define SDHI_H
-
-/**************************************************
- *
- * CPU specific settings
- *
- **************************************************/
-
-#ifdef CONFIG_ARCH_SH7372
-#include "mach/sdhi-sh7372.h"
-#else
-#error "unsupported CPU."
-#endif
-
-#endif /* SDHI_H */
--
2.1.4