9 files changed, 324 insertions, 7 deletions

diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index d02d2c6e0cfe..6b7525099e56 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -24,12 +24,14 @@ struct mmc_cid {
 };
 
 struct mmc_csd {
+        unsigned char           structure;
         unsigned char           mmca_vsn;
         unsigned short          cmdclass;
         unsigned short          tacc_clks;
         unsigned int            tacc_ns;
         unsigned int            r2w_factor;
         unsigned int            max_dtr;
+        unsigned int            erase_size;             /* In sectors */
         unsigned int            read_blkbits;
         unsigned int            write_blkbits;
         unsigned int            capacity;
@@ -41,9 +43,16 @@ struct mmc_csd {
 
 struct mmc_ext_csd {
         u8                      rev;
+        u8                      erase_group_def;
+        u8                      sec_feature_support;
         unsigned int            sa_timeout;             /* Units: 100ns */
         unsigned int            hs_max_dtr;
         unsigned int            sectors;
+        unsigned int            hc_erase_size;          /* In sectors */
+        unsigned int            hc_erase_timeout;       /* In milliseconds */
+        unsigned int            sec_trim_mult;  /* Secure trim multiplier  */
+        unsigned int            sec_erase_mult; /* Secure erase multiplier */
+        unsigned int            trim_timeout;           /* In milliseconds */
 };
 
 struct sd_scr {
@@ -53,6 +62,12 @@ struct sd_scr {
 #define SD_SCR_BUS_WIDTH_4      (1<<2)
 };
 
+struct sd_ssr {
+        unsigned int            au;                     /* In sectors */
+        unsigned int            erase_timeout;          /* In milliseconds */
+        unsigned int            erase_offset;           /* In milliseconds */
+};
+
 struct sd_switch_caps {
         unsigned int            hs_max_dtr;
 };
@@ -92,6 +107,7 @@ struct mmc_card {
 #define MMC_TYPE_MMC            0               /* MMC card */
 #define MMC_TYPE_SD             1               /* SD card */
 #define MMC_TYPE_SDIO           2               /* SDIO card */
+#define MMC_TYPE_SD_COMBO       3               /* SD combo (IO+mem) card */
         unsigned int            state;          /* (our) card state */
 #define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
@@ -101,6 +117,13 @@ struct mmc_card {
 #define MMC_QUIRK_LENIENT_FN0   (1<<0)          /* allow SDIO FN0 writes outside of the VS CCCR range */
 #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)    /* use func->cur_blksize */
                                                 /* for byte mode */
+#define MMC_QUIRK_NONSTD_SDIO   (1<<2)          /* non-standard SDIO card attached */
+                                                /* (missing CIA registers) */
+
+        unsigned int            erase_size;     /* erase size in sectors */
+        unsigned int            erase_shift;    /* if erase unit is power 2 */
+        unsigned int            pref_erase;     /* in sectors */
+        u8                      erased_byte;    /* value of erased bytes */
 
         u32                     raw_cid[4];     /* raw card CID */
         u32                     raw_csd[4];     /* raw card CSD */
@@ -109,6 +132,7 @@ struct mmc_card {
         struct mmc_csd          csd;            /* card specific */
         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
         struct sd_scr           scr;            /* extra SD information */
+        struct sd_ssr           ssr;            /* yet more SD information */
         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
 
         unsigned int            sdio_funcs;     /* number of SDIO functions */
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index e4898e9eeb59..7429033acb66 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -92,6 +92,8 @@ struct mmc_command {
  *              actively failing requests
  */
 
+        unsigned int            erase_timeout;  /* in milliseconds */
+
         struct mmc_data         *data;          /* data segment associated with cmd */
         struct mmc_request      *mrq;           /* associated request */
 };
@@ -134,6 +136,23 @@ extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int);
 extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
         struct mmc_command *, int);
 
+#define MMC_ERASE_ARG           0x00000000
+#define MMC_SECURE_ERASE_ARG    0x80000000
+#define MMC_TRIM_ARG            0x00000001
+#define MMC_SECURE_TRIM1_ARG    0x80000001
+#define MMC_SECURE_TRIM2_ARG    0x80008000
+
+#define MMC_SECURE_ARGS         0x80000000
+#define MMC_TRIM_ARGS           0x00008001
+
+extern int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
+                     unsigned int arg);
+extern int mmc_can_erase(struct mmc_card *card);
+extern int mmc_can_trim(struct mmc_card *card);
+extern int mmc_can_secure_erase_trim(struct mmc_card *card);
+extern int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from,
+                                   unsigned int nr);
+
 extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *);
 extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int);
 
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 43eaf5ca5848..1575b52c3bfa 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -108,6 +108,9 @@ struct mmc_host_ops {
         int     (*get_cd)(struct mmc_host *host);
 
         void    (*enable_sdio_irq)(struct mmc_host *host, int enable);
+
+        /* optional callback for HC quirks */
+        void    (*init_card)(struct mmc_host *host, struct mmc_card *card);
 };
 
 struct mmc_card;
@@ -121,6 +124,7 @@ struct mmc_host {
         unsigned int            f_min;
         unsigned int            f_max;
         u32                     ocr_avail;
+        struct notifier_block   pm_notify;
 
 #define MMC_VDD_165_195         0x00000080      /* VDD voltage 1.65 - 1.95 */
 #define MMC_VDD_20_21           0x00000100      /* VDD voltage 2.0 ~ 2.1 */
@@ -152,6 +156,7 @@ struct mmc_host {
 #define MMC_CAP_DISABLE         (1 << 7)        /* Can the host be disabled */
 #define MMC_CAP_NONREMOVABLE    (1 << 8)        /* Nonremovable e.g. eMMC */
 #define MMC_CAP_WAIT_WHILE_BUSY (1 << 9)        /* Waits while card is busy */
+#define MMC_CAP_ERASE           (1 << 10)       /* Allow erase/trim commands */
 
         mmc_pm_flag_t           pm_caps;        /* supported pm features */
 
@@ -180,6 +185,7 @@ struct mmc_host {
 
         /* Only used with MMC_CAP_DISABLE */
         int                     enabled;        /* host is enabled */
+        int                     rescan_disable; /* disable card detection */
         int                     nesting_cnt;    /* "enable" nesting count */
         int                     en_dis_recurs;  /* detect recursion */
         unsigned int            disable_delay;  /* disable delay in msecs */
@@ -227,7 +233,7 @@ static inline void *mmc_priv(struct mmc_host *host)
 #define mmc_classdev(x) (&(x)->class_dev)
 #define mmc_hostname(x) (dev_name(&(x)->class_dev))
 
-extern int mmc_suspend_host(struct mmc_host *, pm_message_t);
+extern int mmc_suspend_host(struct mmc_host *);
 extern int mmc_resume_host(struct mmc_host *);
 
 extern void mmc_power_save_host(struct mmc_host *host);
@@ -254,6 +260,7 @@ int mmc_card_can_sleep(struct mmc_host *host);
 int mmc_host_enable(struct mmc_host *host);
 int mmc_host_disable(struct mmc_host *host);
 int mmc_host_lazy_disable(struct mmc_host *host);
+int mmc_pm_notify(struct notifier_block *notify_block, unsigned long, void *);
 
 static inline void mmc_set_disable_delay(struct mmc_host *host,
                                          unsigned int disable_delay)
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 8a49cbf0376d..dd11ae51fb68 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -251,12 +251,21 @@ struct _mmc_csd {
  * EXT_CSD fields
  */
 
-#define EXT_CSD_BUS_WIDTH       183     /* R/W */
-#define EXT_CSD_HS_TIMING       185     /* R/W */
-#define EXT_CSD_CARD_TYPE       196     /* RO */
-#define EXT_CSD_REV             192     /* RO */
-#define EXT_CSD_SEC_CNT         212     /* RO, 4 bytes */
-#define EXT_CSD_S_A_TIMEOUT     217
+#define EXT_CSD_ERASE_GROUP_DEF         175     /* R/W */
+#define EXT_CSD_ERASED_MEM_CONT         181     /* RO */
+#define EXT_CSD_BUS_WIDTH               183     /* R/W */
+#define EXT_CSD_HS_TIMING               185     /* R/W */
+#define EXT_CSD_REV                     192     /* RO */
+#define EXT_CSD_STRUCTURE               194     /* RO */
+#define EXT_CSD_CARD_TYPE               196     /* RO */
+#define EXT_CSD_SEC_CNT                 212     /* RO, 4 bytes */
+#define EXT_CSD_S_A_TIMEOUT             217     /* RO */
+#define EXT_CSD_ERASE_TIMEOUT_MULT      223     /* RO */
+#define EXT_CSD_HC_ERASE_GRP_SIZE       224     /* RO */
+#define EXT_CSD_SEC_TRIM_MULT           229     /* RO */
+#define EXT_CSD_SEC_ERASE_MULT          230     /* RO */
+#define EXT_CSD_SEC_FEATURE_SUPPORT     231     /* RO */
+#define EXT_CSD_TRIM_MULT               232     /* RO */
 
 /*
  * EXT_CSD field definitions
@@ -274,6 +283,10 @@ struct _mmc_csd {
 #define EXT_CSD_BUS_WIDTH_4     1       /* Card is in 4 bit mode */
 #define EXT_CSD_BUS_WIDTH_8     2       /* Card is in 8 bit mode */
 
+#define EXT_CSD_SEC_ER_EN       BIT(0)
+#define EXT_CSD_SEC_BD_BLK_EN   BIT(2)
+#define EXT_CSD_SEC_GB_CL_EN    BIT(4)
+
 /*
  * MMC_SWITCH access modes
  */
diff --git a/include/linux/mmc/sd.h b/include/linux/mmc/sd.h
index f310062cffb4..3fd85e088cc3 100644
--- a/include/linux/mmc/sd.h
+++ b/include/linux/mmc/sd.h
@@ -21,8 +21,13 @@
   /* class 10 */
 #define SD_SWITCH                 6   /* adtc [31:0] See below   R1  */
 
+  /* class 5 */
+#define SD_ERASE_WR_BLK_START    32   /* ac   [31:0] data addr   R1  */
+#define SD_ERASE_WR_BLK_END      33   /* ac   [31:0] data addr   R1  */
+
   /* Application commands */
 #define SD_APP_SET_BUS_WIDTH      6   /* ac   [1:0] bus width    R1  */
+#define SD_APP_SD_STATUS         13   /* adtc                    R1  */
 #define SD_APP_SEND_NUM_WR_BLKS  22   /* adtc                    R1  */
 #define SD_APP_OP_COND           41   /* bcr  [31:0] OCR         R3  */
 #define SD_APP_SEND_SCR          51   /* adtc                    R1  */
diff --git a/include/linux/mmc/sdhci-spear.h b/include/linux/mmc/sdhci-spear.h
new file mode 100644
index 000000000000..9188c973f3e1
--- /dev/null
+++ b/include/linux/mmc/sdhci-spear.h
@@ -0,0 +1,42 @@
+/*
+ * include/linux/mmc/sdhci-spear.h
+ *
+ * SDHCI declarations specific to ST SPEAr platform
+ *
+ * Copyright (C) 2010 ST Microelectronics
+ * Viresh Kumar<viresh.kumar@st.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef MMC_SDHCI_SPEAR_H
+#define MMC_SDHCI_SPEAR_H
+
+#include <linux/platform_device.h>
+/*
+ * struct sdhci_plat_data: spear sdhci platform data structure
+ *
+ * @card_power_gpio: gpio pin for enabling/disabling power to sdhci socket
+ * @power_active_high: if set, enable power to sdhci socket by setting
+ *                      card_power_gpio
+ * @power_always_enb: If set, then enable power on probe, otherwise enable only
+ *                      on card insertion and disable on card removal.
+ * card_int_gpio: gpio pin used for card detection
+ */
+struct sdhci_plat_data {
+        int card_power_gpio;
+        int power_active_high;
+        int power_always_enb;
+        int card_int_gpio;
+};
+
+/* This function is used to set platform_data field of pdev->dev */
+static inline void
+sdhci_set_plat_data(struct platform_device *pdev, struct sdhci_plat_data *data)
+{
+        pdev->dev.platform_data = data;
+}
+
+#endif /* MMC_SDHCI_SPEAR_H */
diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h
index 0ebaef577ff5..245cdacee544 100644
--- a/include/linux/mmc/sdio.h
+++ b/include/linux/mmc/sdio.h
@@ -38,6 +38,8 @@
  *      [8:0] Byte/block count
  */
 
+#define R4_MEMORY_PRESENT (1 << 27)
+
 /*
   SDIO status in R5
   Type
@@ -94,6 +96,8 @@
 
 #define  SDIO_BUS_WIDTH_1BIT    0x00
 #define  SDIO_BUS_WIDTH_4BIT    0x02
+#define  SDIO_BUS_ECSI          0x20    /* Enable continuous SPI interrupt */
+#define  SDIO_BUS_SCSI          0x40    /* Support continuous SPI interrupt */
 
 #define  SDIO_BUS_ASYNC_INT     0x20
 
diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
index c6c0cceba5fe..31baaf82f458 100644
--- a/include/linux/mmc/sdio_func.h
+++ b/include/linux/mmc/sdio_func.h
@@ -145,6 +145,9 @@ extern void sdio_writew(struct sdio_func *func, u16 b,
 extern void sdio_writel(struct sdio_func *func, u32 b,
         unsigned int addr, int *err_ret);
 
+extern u8 sdio_writeb_readb(struct sdio_func *func, u8 write_byte,
+        unsigned int addr, int *err_ret);
+
 extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr,
         void *src, int count);
 extern int sdio_writesb(struct sdio_func *func, unsigned int addr,
diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
new file mode 100644
index 000000000000..d4a2ebbdab4b
--- /dev/null
+++ b/include/linux/mmc/sh_mmcif.h
@@ -0,0 +1,200 @@
+/*
+ * include/linux/mmc/sh_mmcif.h
+ *
+ * platform data for eMMC driver
+ *
+ * Copyright (C) 2010 Renesas Solutions Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ */
+
+#ifndef __SH_MMCIF_H__
+#define __SH_MMCIF_H__
+
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+/*
+ * MMCIF : CE_CLK_CTRL [19:16]
+ * 1000 : Peripheral clock / 512
+ * 0111 : Peripheral clock / 256
+ * 0110 : Peripheral clock / 128
+ * 0101 : Peripheral clock / 64
+ * 0100 : Peripheral clock / 32
+ * 0011 : Peripheral clock / 16
+ * 0010 : Peripheral clock / 8
+ * 0001 : Peripheral clock / 4
+ * 0000 : Peripheral clock / 2
+ * 1111 : Peripheral clock (sup_pclk set '1')
+ */
+
+struct sh_mmcif_plat_data {
+        void (*set_pwr)(struct platform_device *pdev, int state);
+        void (*down_pwr)(struct platform_device *pdev);
+        u8      sup_pclk;       /* 1 :SH7757, 0: SH7724/SH7372 */
+        unsigned long caps;
+        u32     ocr;
+};
+
+#define MMCIF_CE_CMD_SET        0x00000000
+#define MMCIF_CE_ARG            0x00000008
+#define MMCIF_CE_ARG_CMD12      0x0000000C
+#define MMCIF_CE_CMD_CTRL       0x00000010
+#define MMCIF_CE_BLOCK_SET      0x00000014
+#define MMCIF_CE_CLK_CTRL       0x00000018
+#define MMCIF_CE_BUF_ACC        0x0000001C
+#define MMCIF_CE_RESP3          0x00000020
+#define MMCIF_CE_RESP2          0x00000024
+#define MMCIF_CE_RESP1          0x00000028
+#define MMCIF_CE_RESP0          0x0000002C
+#define MMCIF_CE_RESP_CMD12     0x00000030
+#define MMCIF_CE_DATA           0x00000034
+#define MMCIF_CE_INT            0x00000040
+#define MMCIF_CE_INT_MASK       0x00000044
+#define MMCIF_CE_HOST_STS1      0x00000048
+#define MMCIF_CE_HOST_STS2      0x0000004C
+#define MMCIF_CE_VERSION        0x0000007C
+
+extern inline u32 sh_mmcif_readl(void __iomem *addr, int reg)
+{
+        return readl(addr + reg);
+}
+
+extern inline void sh_mmcif_writel(void __iomem *addr, int reg, u32 val)
+{
+        writel(val, addr + reg);
+}
+
+#define SH_MMCIF_BBS 512 /* boot block size */
+
+extern inline void sh_mmcif_boot_cmd_send(void __iomem *base,
+                                          unsigned long cmd, unsigned long arg)
+{
+        sh_mmcif_writel(base, MMCIF_CE_INT, 0);
+        sh_mmcif_writel(base, MMCIF_CE_ARG, arg);
+        sh_mmcif_writel(base, MMCIF_CE_CMD_SET, cmd);
+}
+
+extern inline int sh_mmcif_boot_cmd_poll(void __iomem *base, unsigned long mask)
+{
+        unsigned long tmp;
+        int cnt;
+
+        for (cnt = 0; cnt < 1000000; cnt++) {
+                tmp = sh_mmcif_readl(base, MMCIF_CE_INT);
+                if (tmp & mask) {
+                        sh_mmcif_writel(base, MMCIF_CE_INT, tmp & ~mask);
+                        return 0;
+                }
+        }
+
+        return -1;
+}
+
+extern inline int sh_mmcif_boot_cmd(void __iomem *base,
+                                    unsigned long cmd, unsigned long arg)
+{
+        sh_mmcif_boot_cmd_send(base, cmd, arg);
+        return sh_mmcif_boot_cmd_poll(base, 0x00010000);
+}
+
+extern inline int sh_mmcif_boot_do_read_single(void __iomem *base,
+                                               unsigned int block_nr,
+                                               unsigned long *buf)
+{
+        int k;
+
+        /* CMD13 - Status */
+        sh_mmcif_boot_cmd(base, 0x0d400000, 0x00010000);
+
+        if (sh_mmcif_readl(base, MMCIF_CE_RESP0) != 0x0900)
+                return -1;
+
+        /* CMD17 - Read */
+        sh_mmcif_boot_cmd(base, 0x11480000, block_nr * SH_MMCIF_BBS);
+        if (sh_mmcif_boot_cmd_poll(base, 0x00100000) < 0)
+                return -1;
+
+        for (k = 0; k < (SH_MMCIF_BBS / 4); k++)
+                buf[k] = sh_mmcif_readl(base, MMCIF_CE_DATA);
+
+        return 0;
+}
+
+extern inline int sh_mmcif_boot_do_read(void __iomem *base,
+                                        unsigned long first_block,
+                                        unsigned long nr_blocks,
+                                        void *buf)
+{
+        unsigned long k;
+        int ret = 0;
+
+        /* CMD16 - Set the block size */
+        sh_mmcif_boot_cmd(base, 0x10400000, SH_MMCIF_BBS);
+
+        for (k = 0; !ret && k < nr_blocks; k++)
+                ret = sh_mmcif_boot_do_read_single(base, first_block + k,
+                                                   buf + (k * SH_MMCIF_BBS));
+
+        return ret;
+}
+
+extern inline void sh_mmcif_boot_init(void __iomem *base)
+{
+        unsigned long tmp;
+
+        /* reset */
+        tmp = sh_mmcif_readl(base, MMCIF_CE_VERSION);
+        sh_mmcif_writel(base, MMCIF_CE_VERSION, tmp | 0x80000000);
+        sh_mmcif_writel(base, MMCIF_CE_VERSION, tmp & ~0x80000000);
+
+        /* byte swap */
+        sh_mmcif_writel(base, MMCIF_CE_BUF_ACC, 0x00010000);
+
+        /* Set block size in MMCIF hardware */
+        sh_mmcif_writel(base, MMCIF_CE_BLOCK_SET, SH_MMCIF_BBS);
+
+        /* Enable the clock, set it to Bus clock/256 (about 325Khz)*/
+        sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL, 0x01072fff);
+
+        /* CMD0 */
+        sh_mmcif_boot_cmd(base, 0x00000040, 0);
+
+        /* CMD1 - Get OCR */
+        do {
+                sh_mmcif_boot_cmd(base, 0x01405040, 0x40300000); /* CMD1 */
+        } while ((sh_mmcif_readl(base, MMCIF_CE_RESP0) & 0x80000000)
+                 != 0x80000000);
+
+        /* CMD2 - Get CID */
+        sh_mmcif_boot_cmd(base, 0x02806040, 0);
+
+        /* CMD3 - Set card relative address */
+        sh_mmcif_boot_cmd(base, 0x03400040, 0x00010000);
+}
+
+extern inline void sh_mmcif_boot_slurp(void __iomem *base,
+                                       unsigned char *buf,
+                                       unsigned long no_bytes)
+{
+        unsigned long tmp;
+
+        /* In data transfer mode: Set clock to Bus clock/4 (about 20Mhz) */
+        sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL, 0x01012fff);
+
+        /* CMD9 - Get CSD */
+        sh_mmcif_boot_cmd(base, 0x09806000, 0x00010000);
+
+        /* CMD7 - Select the card */
+        sh_mmcif_boot_cmd(base, 0x07400000, 0x00010000);
+
+        tmp = no_bytes / SH_MMCIF_BBS;
+        tmp += (no_bytes % SH_MMCIF_BBS) ? 1 : 0;
+
+        sh_mmcif_boot_do_read(base, 512, tmp, buf);
+}
+
+#endif /* __SH_MMCIF_H__ */