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[s3c24xx] glamo: get rid of static driver handle.
[openwrt.git] / target / linux / s3c24xx / files-2.6.30 / drivers / mfd / glamo / glamo-mci.c
diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c
index 956be57..0d7a2aa 100644 (file)
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c
@@ -14,6 +14,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/clk.h>
 #include <linux/mmc/mmc.h>
 #include <linux/dma-mapping.h>
 #include <linux/clk.h>
 #include <linux/mmc/mmc.h>
+#include <linux/mmc/sd.h>
 #include <linux/mmc/host.h>
 #include <linux/platform_device.h>
 #include <linux/irq.h>
 #include <linux/mmc/host.h>
 #include <linux/platform_device.h>
 #include <linux/irq.h>
@@ -21,6 +22,7 @@
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
+#include <linux/crc7.h>
 
 #include <asm/dma.h>
 #include <asm/dma-mapping.h>
 
 #include <asm/dma.h>
 #include <asm/dma-mapping.h>
@@ -30,15 +32,11 @@
 #include "glamo-core.h"
 #include "glamo-regs.h"
 
 #include "glamo-core.h"
 #include "glamo-regs.h"
 
-/* from glamo-core.c */
-extern struct glamo_mci_pdata glamo_mci_def_pdata;
-
-static spinlock_t clock_lock;
-
 #define DRIVER_NAME "glamo-mci"
 #define DRIVER_NAME "glamo-mci"
-#define RESSIZE(ressource) (((ressource)->end - (ressource)->start) + 1)
 
 static void glamo_mci_send_request(struct mmc_host *mmc);
 
 static void glamo_mci_send_request(struct mmc_host *mmc);
+static void glamo_mci_send_command(struct glamo_mci_host *host,
+                                 struct mmc_command *cmd);
 
 /*
  * Max SD clock rate
 
 /*
  * Max SD clock rate
@@ -119,215 +117,137 @@ module_param(sd_idleclk, int, 0644);
 /* used to stash real idleclk state in suspend: we force it to run in there */
 static int suspend_sd_idleclk;
 
 /* used to stash real idleclk state in suspend: we force it to run in there */
 static int suspend_sd_idleclk;
 
-
-unsigned char CRC7(u8 * pu8, int cnt)
+static inline void glamo_reg_write(struct glamo_mci_host *glamo,
+                               u_int16_t reg, u_int16_t val)
 {
 {
-       u8 crc = 0;
-
-       while (cnt--) {
-               int n;
-               u8 d = *pu8++;
-               for (n = 0; n < 8; n++) {
-                       crc <<= 1;
-                       if ((d & 0x80) ^ (crc & 0x80))
-                               crc ^= 0x09;
-                       d <<= 1;
-               }
-       }
-       return (crc << 1) | 1;
+       writew(val, glamo->mmio_base + reg);
 }
 
 }
 
-static int get_data_buffer(struct glamo_mci_host *host,
-                          volatile u32 *words, volatile u16 **pointer)
+static inline u_int16_t glamo_reg_read(struct glamo_mci_host *glamo,
+                                  u_int16_t reg)
 {
 {
-       struct scatterlist *sg;
-
-       *words = 0;
-       *pointer = NULL;
-
-       if (host->pio_active == XFER_NONE)
-               return -EINVAL;
-
-       if ((!host->mrq) || (!host->mrq->data))
-               return -EINVAL;
-
-       if (host->pio_sgptr >= host->mrq->data->sg_len) {
-               dev_dbg(&host->pdev->dev, "no more buffers (%i/%i)\n",
-                     host->pio_sgptr, host->mrq->data->sg_len);
-               return -EBUSY;
-       }
-       sg = &host->mrq->data->sg[host->pio_sgptr];
-
-       *words = sg->length >> 1; /* we are working with a 16-bit data bus */
-       *pointer = page_address(sg_page(sg)) + sg->offset;
+       return readw(glamo->mmio_base + reg);
+}
 
 
-       BUG_ON(((long)(*pointer)) & 1);
+static void glamo_reg_set_bit_mask(struct glamo_mci_host *glamo,
+                               u_int16_t reg, u_int16_t mask,
+                               u_int16_t val)
+{
+       u_int16_t tmp;
 
 
-       host->pio_sgptr++;
+       val &= mask;
 
 
-       /* dev_info(&host->pdev->dev, "new buffer (%i/%i)\n",
-             host->pio_sgptr, host->mrq->data->sg_len); */
-       return 0;
+       tmp = glamo_reg_read(glamo, reg);
+       tmp &= ~mask;
+       tmp |= val;
+       glamo_reg_write(glamo, reg, tmp);
 }
 
 static void do_pio_read(struct glamo_mci_host *host)
 {
 }
 
 static void do_pio_read(struct glamo_mci_host *host)
 {
-       int res;
-       u16 __iomem *from_ptr = host->base_data + (RESSIZE(host->mem_data) /
-                                                             sizeof(u16) / 2);
-#ifdef DEBUG
-       u16 * block;
-#endif
-
-       while (1) {
-               res = get_data_buffer(host, &host->pio_words, &host->pio_ptr);
-               if (res) {
-                       host->pio_active = XFER_NONE;
-                       host->complete_what = COMPLETION_FINALIZE;
-
-                       dev_dbg(&host->pdev->dev, "pio_read(): "
-                               "complete (no more data).\n");
-                       return;
-               }
+       struct scatterlist *sg;
+       u16 __iomem *from_ptr = host->data_base;
+       struct mmc_data *data = host->mrq->data;
+       void *sg_pointer;
 
 
-               dev_dbg(&host->pdev->dev, "pio_read(): host->pio_words: %d\n",
-                               host->pio_words);
-
-               host->pio_count += host->pio_words << 1;
-
-#ifdef DEBUG
-               block = (u16 *)host->pio_ptr;
-               res = host->pio_words << 1;
-#endif
-#if 0
-               /* u16-centric memcpy */
-               while (host->pio_words--)
-                       *host->pio_ptr++ = *from_ptr++;
-#else
-               /* memcpy can be faster? */
-               memcpy((void *)host->pio_ptr, from_ptr, host->pio_words << 1);
-               host->pio_ptr += host->pio_words;
-#endif
-
-#ifdef DEBUG
-               print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 1,
-                              (void *)block, res, 1);
-#endif
+       dev_dbg(&host->pdev->dev, "pio_read():\n");
+       for (sg = data->sg; sg; sg = sg_next(sg)) {
+               sg_pointer = page_address(sg_page(sg)) + sg->offset;
+
+
+               memcpy(sg_pointer, from_ptr, sg->length);
+               from_ptr += sg->length >> 1;
+
+               data->bytes_xfered += sg->length;
        }
        }
+
+       dev_dbg(&host->pdev->dev, "pio_read(): "
+               "complete (no more data).\n");
 }
 
 }
 
-static int do_pio_write(struct glamo_mci_host *host)
+static void do_pio_write(struct glamo_mci_host *host)
 {
 {
-       int res = 0;
-       volatile u16 __iomem *to_ptr = host->base_data;
-       int err = 0;
+       struct scatterlist *sg;
+       u16 __iomem *to_ptr = host->data_base;
+       struct mmc_data *data = host->mrq->data;
+       void *sg_pointer;
 
        dev_dbg(&host->pdev->dev, "pio_write():\n");
 
        dev_dbg(&host->pdev->dev, "pio_write():\n");
-       while (!res) {
-               res = get_data_buffer(host, &host->pio_words, &host->pio_ptr);
-               if (res)
-                       continue;
+       for (sg = data->sg; sg; sg = sg_next(sg)) {
+               sg_pointer = page_address(sg_page(sg)) + sg->offset;
 
 
-               dev_dbg(&host->pdev->dev, "pio_write():new source: [%i]@[%p]\n",
-                       host->pio_words, host->pio_ptr);
+               data->bytes_xfered += sg->length;
 
 
-               host->pio_count += host->pio_words << 1;
-               while (host->pio_words--)
-                       writew(*host->pio_ptr++, to_ptr++);
+               memcpy(to_ptr, sg_pointer, sg->length);
+               to_ptr += sg->length >> 1;
        }
 
        dev_dbg(&host->pdev->dev, "pio_write(): complete\n");
        }
 
        dev_dbg(&host->pdev->dev, "pio_write(): complete\n");
-       host->pio_active = XFER_NONE;
-       return err;
 }
 
 }
 
-static void __glamo_mci_fix_card_div(struct glamo_mci_host *host, int div)
+static void glamo_mci_fix_card_div(struct glamo_mci_host *host, int div)
 {
        unsigned long flags;
 
 {
        unsigned long flags;
 
-       spin_lock_irqsave(&clock_lock, flags);
+       spin_lock_irqsave(&host->pdata->pglamo->lock, flags);
 
        if (div < 0) {
                /* stop clock - remove clock from divider input */
 
        if (div < 0) {
                /* stop clock - remove clock from divider input */
-               writew(readw(glamo_mci_def_pdata.pglamo->base +
+               writew(readw(host->pdata->pglamo->base +
                     GLAMO_REG_CLOCK_GEN5_1) & (~GLAMO_CLOCK_GEN51_EN_DIV_TCLK),
                     GLAMO_REG_CLOCK_GEN5_1) & (~GLAMO_CLOCK_GEN51_EN_DIV_TCLK),
-                    glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
-
-               goto done;
+                    host->pdata->pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
        } else {
        } else {
-               /* set the nearest prescaler factor
-               *
-               * register shared with SCLK divisor -- no chance of race because
-               * we don't use sensor interface
-               */
-               writew((readw(glamo_mci_def_pdata.pglamo->base +
-                               GLAMO_REG_CLOCK_GEN8) & 0xff00) | div,
-                      glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN8);
-               /* enable clock to divider input */
-               writew(readw(glamo_mci_def_pdata.pglamo->base +
-                       GLAMO_REG_CLOCK_GEN5_1) | GLAMO_CLOCK_GEN51_EN_DIV_TCLK,
-                    glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
-       }
-
-       if (host->force_slow_during_powerup)
-               div = host->clk_rate / sd_post_power_clock;
-       else
-               if (host->pdata->glamo_mci_use_slow)
-                       if ((host->pdata->glamo_mci_use_slow)())
-                               div = div * sd_slow_ratio;
 
 
-       if (div > 255)
-               div = 255;
+               if (host->force_slow_during_powerup)
+                       div = host->clk_rate / sd_post_power_clock;
+               else if (host->pdata->glamo_mci_use_slow &&
+                        host->pdata->glamo_mci_use_slow())
+                       div = div * sd_slow_ratio;
 
 
-       /*
-        * set the nearest prescaler factor
-        *
-        * register shared with SCLK divisor -- no chance of race because
-        * we don't use sensor interface
-        */
-       writew((readw(glamo_mci_def_pdata.pglamo->base +
-                       GLAMO_REG_CLOCK_GEN8) & 0xff00) | div,
-               glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN8);
-       /* enable clock to divider input */
-       writew(readw(glamo_mci_def_pdata.pglamo->base +
-               GLAMO_REG_CLOCK_GEN5_1) | GLAMO_CLOCK_GEN51_EN_DIV_TCLK,
-               glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
-
-done:
-       spin_unlock_irqrestore(&clock_lock, flags);
+               if (div > 255)
+                       div = 255;
+               /*
+                * set the nearest prescaler factor
+                *
+                * register shared with SCLK divisor -- no chance of race because
+                * we don't use sensor interface
+                */
+               writew((readw(host->pdata->pglamo->base +
+                             GLAMO_REG_CLOCK_GEN8) & 0xff00) | div,
+                      host->pdata->pglamo->base + GLAMO_REG_CLOCK_GEN8);
+               /* enable clock to divider input */
+               writew(readw(host->pdata->pglamo->base +
+                            GLAMO_REG_CLOCK_GEN5_1) | GLAMO_CLOCK_GEN51_EN_DIV_TCLK,
+                      host->pdata->pglamo->base + GLAMO_REG_CLOCK_GEN5_1);
+       }
+       spin_unlock_irqrestore(&host->pdata->pglamo->lock, flags);
+       mdelay(5);
 }
 
 }
 
-static int __glamo_mci_set_card_clock(struct glamo_mci_host *host, int freq,
-                                                                 int *division)
+static int glamo_mci_set_card_clock(struct glamo_mci_host *host, int freq)
 {
        int div = 0;
        int real_rate = 0;
 
        if (freq) {
                /* Set clock */
 {
        int div = 0;
        int real_rate = 0;
 
        if (freq) {
                /* Set clock */
-               for (div = 0; div < 256; div++) {
+               for (div = 0; div < 255; div++) {
                        real_rate = host->clk_rate / (div + 1);
                        if (real_rate <= freq)
                                break;
                }
                        real_rate = host->clk_rate / (div + 1);
                        if (real_rate <= freq)
                                break;
                }
-               if (div > 255)
-                       div = 255;
-
-               if (division)
-                       *division = div;
-
-               __glamo_mci_fix_card_div(host, div);
 
 
+               host->clk_div = div;
+               glamo_mci_fix_card_div(host, div);
        } else {
                /* stop clock */
        } else {
                /* stop clock */
-               if (division)
-                       *division = 0xff;
+               host->clk_div = 0xff;
 
                if (!sd_idleclk && !host->force_slow_during_powerup)
                        /* clock off */
 
                if (!sd_idleclk && !host->force_slow_during_powerup)
                        /* clock off */
-                       __glamo_mci_fix_card_div(host, -1);
+                       glamo_mci_fix_card_div(host, -1);
        }
        }
-
+       host->real_rate = real_rate;
        return real_rate;
 }
 
        return real_rate;
 }
 
@@ -338,54 +258,46 @@ static void glamo_mci_irq_worker(struct work_struct *work)
                            container_of(work, struct glamo_mci_host, irq_work);
        struct mmc_command *cmd = host->mrq->cmd;
 
                            container_of(work, struct glamo_mci_host, irq_work);
        struct mmc_command *cmd = host->mrq->cmd;
 
-       if (host->pio_active == XFER_READ)
+       if (cmd->data->flags & MMC_DATA_READ) {
                do_pio_read(host);
                do_pio_read(host);
-
-       host->mrq->data->bytes_xfered = host->pio_count;
-       dev_dbg(&host->pdev->dev, "count=%d\n", host->pio_count);
+       }
 
        /* issue STOP if we have been given one to use */
        if (host->mrq->stop) {
 
        /* issue STOP if we have been given one to use */
        if (host->mrq->stop) {
-               host->cmd_is_stop = 1;
-               glamo_mci_send_request(host->mmc);
-               host->cmd_is_stop = 0;
+               glamo_mci_send_command(host, host->mrq->stop);
        }
 
        if (!sd_idleclk && !host->force_slow_during_powerup)
                /* clock off */
        }
 
        if (!sd_idleclk && !host->force_slow_during_powerup)
                /* clock off */
-               __glamo_mci_fix_card_div(host, -1);
+               glamo_mci_fix_card_div(host, -1);
 
 
-       host->complete_what = COMPLETION_NONE;
        host->mrq = NULL;
        mmc_request_done(host->mmc, cmd->mrq);
 }
 
        host->mrq = NULL;
        mmc_request_done(host->mmc, cmd->mrq);
 }
 
-static void glamo_mci_irq_host(struct glamo_mci_host *host)
+static irqreturn_t glamo_mci_irq(int irq, void *devid)
 {
 {
+       struct glamo_mci_host *host = (struct glamo_mci_host*)devid;
        u16 status;
        struct mmc_command *cmd;
        u16 status;
        struct mmc_command *cmd;
-       unsigned long iflags;
+       unsigned long flags;
 
        if (host->suspending) { /* bad news, dangerous time */
                dev_err(&host->pdev->dev, "****glamo_mci_irq before resumed\n");
 
        if (host->suspending) { /* bad news, dangerous time */
                dev_err(&host->pdev->dev, "****glamo_mci_irq before resumed\n");
-               return;
+               goto leave;
        }
 
        if (!host->mrq)
        }
 
        if (!host->mrq)
-               return;
+               goto leave;
        cmd = host->mrq->cmd;
        if (!cmd)
        cmd = host->mrq->cmd;
        if (!cmd)
-               return;
+               goto leave;
 
 
-       spin_lock_irqsave(&host->complete_lock, iflags);
+       spin_lock_irqsave(&host->lock, flags);
 
 
-       status = readw(host->base + GLAMO_REG_MMC_RB_STAT1);
+       status = readw(host->mmio_base + GLAMO_REG_MMC_RB_STAT1);
        dev_dbg(&host->pdev->dev, "status = 0x%04x\n", status);
 
        dev_dbg(&host->pdev->dev, "status = 0x%04x\n", status);
 
-       /* ack this interrupt source */
-       writew(GLAMO_IRQ_MMC,
-              glamo_mci_def_pdata.pglamo->base + GLAMO_REG_IRQ_CLEAR);
-
        /* we ignore a data timeout report if we are also told the data came */
        if (status & GLAMO_STAT1_MMC_RB_DRDY)
                status &= ~GLAMO_STAT1_MMC_DTOUT;
        /* we ignore a data timeout report if we are also told the data came */
        if (status & GLAMO_STAT1_MMC_RB_DRDY)
                status &= ~GLAMO_STAT1_MMC_DTOUT;
@@ -413,39 +325,33 @@ static void glamo_mci_irq_host(struct glamo_mci_host *host)
         */
        schedule_work(&host->irq_work);
 
         */
        schedule_work(&host->irq_work);
 
-       goto leave;
+       goto unlock;
 
 done:
 
 done:
-       host->complete_what = COMPLETION_NONE;
        host->mrq = NULL;
        mmc_request_done(host->mmc, cmd->mrq);
        host->mrq = NULL;
        mmc_request_done(host->mmc, cmd->mrq);
+unlock:
+       spin_unlock_irqrestore(&host->lock, flags);
 leave:
 leave:
-       spin_unlock_irqrestore(&host->complete_lock, iflags);
+       return IRQ_HANDLED;
 }
 
 }
 
-static void glamo_mci_irq(unsigned int irq, struct irq_desc *desc)
-{
-       struct glamo_mci_host *host = (struct glamo_mci_host *)
-                                     desc->handler_data;
-
-       if (host)
-               glamo_mci_irq_host(host);
-
-}
-
-static int glamo_mci_send_command(struct glamo_mci_host *host,
+static void glamo_mci_send_command(struct glamo_mci_host *host,
                                  struct mmc_command *cmd)
 {
        u8 u8a[6];
        u16 fire = 0;
                                  struct mmc_command *cmd)
 {
        u8 u8a[6];
        u16 fire = 0;
+       unsigned int timeout = 1000000;
+       u16 * reg_resp = (u16 *)(host->mmio_base + GLAMO_REG_MMC_CMD_RSP1);
+       u16 status;
 
        /* if we can't do it, reject as busy */
 
        /* if we can't do it, reject as busy */
-       if (!readw(host->base + GLAMO_REG_MMC_RB_STAT1) &
+       if (!readw(host->mmio_base + GLAMO_REG_MMC_RB_STAT1) &
             GLAMO_STAT1_MMC_IDLE) {
                host->mrq = NULL;
                cmd->error = -EBUSY;
                mmc_request_done(host->mmc, host->mrq);
             GLAMO_STAT1_MMC_IDLE) {
                host->mrq = NULL;
                cmd->error = -EBUSY;
                mmc_request_done(host->mmc, host->mrq);
-               return -EBUSY;
+               return;
        }
 
        /* create an array in wire order for CRC computation */
        }
 
        /* create an array in wire order for CRC computation */
@@ -454,15 +360,15 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
        u8a[2] = (u8)(cmd->arg >> 16);
        u8a[3] = (u8)(cmd->arg >> 8);
        u8a[4] = (u8)cmd->arg;
        u8a[2] = (u8)(cmd->arg >> 16);
        u8a[3] = (u8)(cmd->arg >> 8);
        u8a[4] = (u8)cmd->arg;
-       u8a[5] = CRC7(&u8a[0], 5); /* CRC7 on first 5 bytes of packet */
+       u8a[5] = (crc7(0, u8a, 5) << 1) | 0x01; /* crc7 on first 5 bytes of packet */
 
        /* issue the wire-order array including CRC in register order */
 
        /* issue the wire-order array including CRC in register order */
-       writew((u8a[4] << 8) | u8a[5], host->base + GLAMO_REG_MMC_CMD_REG1);
-       writew((u8a[2] << 8) | u8a[3], host->base + GLAMO_REG_MMC_CMD_REG2);
-       writew((u8a[0] << 8) | u8a[1], host->base + GLAMO_REG_MMC_CMD_REG3);
+       writew((u8a[4] << 8) | u8a[5], host->mmio_base + GLAMO_REG_MMC_CMD_REG1);
+       writew((u8a[2] << 8) | u8a[3], host->mmio_base + GLAMO_REG_MMC_CMD_REG2);
+       writew((u8a[0] << 8) | u8a[1], host->mmio_base + GLAMO_REG_MMC_CMD_REG3);
 
        /* command index toggle */
 
        /* command index toggle */
-       fire |= (host->ccnt & 1) << 12;
+       fire |= (host->request_counter & 1) << 12;
 
        /* set type of command */
        switch (mmc_cmd_type(cmd)) {
 
        /* set type of command */
        switch (mmc_cmd_type(cmd)) {
@@ -493,7 +399,7 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
         *                     check pattern, CRC7)
         */
        switch (mmc_resp_type(cmd)) {
         *                     check pattern, CRC7)
         */
        switch (mmc_resp_type(cmd)) {
-       case MMC_RSP_R6: /* same index as R7 and R1 */
+       case MMC_RSP_R1: /* same index as R6 and R7 */
                fire |= GLAMO_FIRE_MMC_RSPT_R1;
                break;
        case MMC_RSP_R1B:
                fire |= GLAMO_FIRE_MMC_RSPT_R1;
                break;
        case MMC_RSP_R1B:
@@ -519,7 +425,7 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
                fire |= GLAMO_FIRE_MMC_CC_SBR; /* single block read */
                break;
        case MMC_SWITCH: /* 64 byte payload */
                fire |= GLAMO_FIRE_MMC_CC_SBR; /* single block read */
                break;
        case MMC_SWITCH: /* 64 byte payload */
-       case 0x33: /* observed issued by MCI */
+       case SD_APP_SEND_SCR:
        case MMC_READ_MULTIPLE_BLOCK:
                /* we will get an interrupt off this */
                if (!cmd->mrq->stop)
        case MMC_READ_MULTIPLE_BLOCK:
                /* we will get an interrupt off this */
                if (!cmd->mrq->stop)
@@ -537,7 +443,7 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
                         /* multiblock with stop */
                        fire |= GLAMO_FIRE_MMC_CC_MBWS;
                else
                         /* multiblock with stop */
                        fire |= GLAMO_FIRE_MMC_CC_MBWS;
                else
-//                      /* multiblock NO stop-- 'RESERVED'? */
+                        /* multiblock NO stop-- 'RESERVED'? */
                        fire |= GLAMO_FIRE_MMC_CC_MBWNS;
                break;
        case MMC_STOP_TRANSMISSION:
                        fire |= GLAMO_FIRE_MMC_CC_MBWNS;
                break;
        case MMC_STOP_TRANSMISSION:
@@ -547,58 +453,77 @@ static int glamo_mci_send_command(struct glamo_mci_host *host,
                fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
                break;
        }
                fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
                break;
        }
-
        /* always largest timeout */
        /* always largest timeout */
-       writew(0xfff, host->base + GLAMO_REG_MMC_TIMEOUT);
+       writew(0xfff, host->mmio_base + GLAMO_REG_MMC_TIMEOUT);
 
        /* Generate interrupt on txfer */
 
        /* Generate interrupt on txfer */
-       writew((readw(host->base + GLAMO_REG_MMC_BASIC) & 0x3e) |
+       glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC, ~0x3e,
                   0x0800 | GLAMO_BASIC_MMC_NO_CLK_RD_WAIT |
                   0x0800 | GLAMO_BASIC_MMC_NO_CLK_RD_WAIT |
-                  GLAMO_BASIC_MMC_EN_COMPL_INT | (sd_drive << 6),
-                  host->base + GLAMO_REG_MMC_BASIC);
+                  GLAMO_BASIC_MMC_EN_COMPL_INT | (sd_drive << 6));
 
        /* send the command out on the wire */
        /* dev_info(&host->pdev->dev, "Using FIRE %04X\n", fire); */
 
        /* send the command out on the wire */
        /* dev_info(&host->pdev->dev, "Using FIRE %04X\n", fire); */
-       writew(fire, host->base + GLAMO_REG_MMC_CMD_FIRE);
-       cmd->error = 0;
-       return 0;
-}
+       writew(fire, host->mmio_base + GLAMO_REG_MMC_CMD_FIRE);
+
+       /* we are deselecting card?  because it isn't going to ack then... */
+       if ((cmd->opcode == 7) && (cmd->arg == 0))
+               return;
 
 
-static int glamo_mci_prepare_pio(struct glamo_mci_host *host,
-                                struct mmc_data *data)
-{
        /*
        /*
-        * the S-Media-internal RAM offset for our MMC buffer
-        * Read is halfway up the buffer and write is at the start
+        * we must spin until response is ready or timed out
+        * -- we don't get interrupts unless there is a bulk rx
         */
         */
-       if (data->flags & MMC_DATA_READ) {
-               writew((u16)(GLAMO_FB_SIZE + (RESSIZE(host->mem_data) / 2)),
-                          host->base + GLAMO_REG_MMC_WDATADS1);
-               writew((u16)((GLAMO_FB_SIZE +
-                                       (RESSIZE(host->mem_data) / 2)) >> 16),
-                          host->base + GLAMO_REG_MMC_WDATADS2);
-       } else {
-               writew((u16)GLAMO_FB_SIZE, host->base +
-                                              GLAMO_REG_MMC_RDATADS1);
-               writew((u16)(GLAMO_FB_SIZE >> 16), host->base +
-                                                      GLAMO_REG_MMC_RDATADS2);
+       udelay(5);
+       do
+               status = readw(host->mmio_base + GLAMO_REG_MMC_RB_STAT1);
+       while (((((status >> 15) & 1) != (host->request_counter & 1)) ||
+               (!(status & (GLAMO_STAT1_MMC_RB_RRDY |
+                            GLAMO_STAT1_MMC_RTOUT |
+                            GLAMO_STAT1_MMC_DTOUT |
+                            GLAMO_STAT1_MMC_BWERR |
+                            GLAMO_STAT1_MMC_BRERR)))) && (timeout--));
+
+       if ((status & (GLAMO_STAT1_MMC_RTOUT |
+                                  GLAMO_STAT1_MMC_DTOUT)) ||
+               (timeout == 0)) {
+               cmd->error = -ETIMEDOUT;
+       } else if (status & (GLAMO_STAT1_MMC_BWERR |
+                         GLAMO_STAT1_MMC_BRERR)) {
+               cmd->error = -EILSEQ;
+       }
+
+       if (cmd->flags & MMC_RSP_PRESENT) {
+               if (cmd->flags & MMC_RSP_136) {
+                       cmd->resp[3] = readw(&reg_resp[0]) |
+                                      (readw(&reg_resp[1]) << 16);
+                       cmd->resp[2] = readw(&reg_resp[2]) |
+                                      (readw(&reg_resp[3]) << 16);
+                       cmd->resp[1] = readw(&reg_resp[4]) |
+                                      (readw(&reg_resp[5]) << 16);
+                       cmd->resp[0] = readw(&reg_resp[6]) |
+                                      (readw(&reg_resp[7]) << 16);
+               } else {
+                       cmd->resp[0] = (readw(&reg_resp[0]) >> 8) |
+                                      (readw(&reg_resp[1]) << 8) |
+                                      ((readw(&reg_resp[2])) << 24);
+               }
        }
        }
+}
 
 
+static int glamo_mci_prepare_pio(struct glamo_mci_host *host,
+                                struct mmc_data *data)
+{
        /* set up the block info */
        /* set up the block info */
-       writew(data->blksz, host->base + GLAMO_REG_MMC_DATBLKLEN);
-       writew(data->blocks, host->base + GLAMO_REG_MMC_DATBLKCNT);
+       writew(data->blksz, host->mmio_base + GLAMO_REG_MMC_DATBLKLEN);
+       writew(data->blocks, host->mmio_base + GLAMO_REG_MMC_DATBLKCNT);
        dev_dbg(&host->pdev->dev, "(blksz=%d, count=%d)\n",
                                   data->blksz, data->blocks);
        dev_dbg(&host->pdev->dev, "(blksz=%d, count=%d)\n",
                                   data->blksz, data->blocks);
-       host->pio_sgptr = 0;
-       host->pio_words = 0;
-       host->pio_count = 0;
-       host->pio_active = 0;
+       data->bytes_xfered = 0;
+
        /* if write, prep the write into the shared RAM before the command */
        if (data->flags & MMC_DATA_WRITE) {
        /* if write, prep the write into the shared RAM before the command */
        if (data->flags & MMC_DATA_WRITE) {
-               host->pio_active = XFER_WRITE;
-               return do_pio_write(host);
+               do_pio_write(host);
        }
        }
-       host->pio_active = XFER_READ;
        return 0;
 }
 
        return 0;
 }
 
@@ -606,43 +531,15 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
 {
        struct glamo_mci_host *host = mmc_priv(mmc);
        struct mmc_request *mrq = host->mrq;
 {
        struct glamo_mci_host *host = mmc_priv(mmc);
        struct mmc_request *mrq = host->mrq;
-       struct mmc_command *cmd = host->cmd_is_stop ? mrq->stop : mrq->cmd;
-       u16 * pu16 = (u16 *)&cmd->resp[0];
-       u16 * reg_resp = (u16 *)(host->base + GLAMO_REG_MMC_CMD_RSP1);
-       u16 status;
-       int n;
+       struct mmc_command *cmd = mrq->cmd;
        int timeout = 1000000;
        int timeout = 1000000;
-       int insanity_timeout = 1000000;
 
 
-       if (host->suspending) {
-               dev_err(&host->pdev->dev, "IGNORING glamo_mci_send_request while "
-                                                                "suspended\n");
-               cmd->error = -EIO;
-               if (cmd->data)
-                       cmd->data->error = -EIO;
-               mmc_request_done(mmc, mrq);
-               return;
-       }
-
-       host->ccnt++;
-       /*
-        * somehow 2.6.24 MCI manages to issue MMC_WRITE_BLOCK *without* the
-        * MMC_DATA_WRITE flag, WTF?  Work around the madness.
-        */
-       if (cmd->opcode == MMC_WRITE_BLOCK)
-               if (mrq->data)
-                       mrq->data->flags |= MMC_DATA_WRITE;
-
-        /* this guy has data to read/write? */
-       if ((!host->cmd_is_stop) && cmd->data) {
-               int res;
-               host->dcnt++;
-               res = glamo_mci_prepare_pio(host, cmd->data);
-               if (res) {
-                       cmd->error = -EIO;
+    host->request_counter++;
+       /* this guy has data to read/write? */
+       if (cmd->data) {
+               if(glamo_mci_prepare_pio(host, cmd->data)) {
                        cmd->data->error = -EIO;
                        cmd->data->error = -EIO;
-                       mmc_request_done(mmc, mrq);
-                       return;
+                       goto done;
                }
        }
 
                }
        }
 
@@ -654,63 +551,14 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
        /* resume requested clock rate
         * scale it down by sd_slow_ratio if platform requests it
         */
        /* resume requested clock rate
         * scale it down by sd_slow_ratio if platform requests it
         */
-       __glamo_mci_fix_card_div(host, host->clk_div);
-
-       if (glamo_mci_send_command(host, cmd))
-               goto bail;
-
-       /* we are deselecting card?  because it isn't going to ack then... */
-       if ((cmd->opcode == 7) && (cmd->arg == 0))
-               goto done;
-
-       /*
-        * we must spin until response is ready or timed out
-        * -- we don't get interrupts unless there is a bulk rx
-        */
-       do
-               status = readw(host->base + GLAMO_REG_MMC_RB_STAT1);
-       while (((((status >> 15) & 1) != (host->ccnt & 1)) ||
-               (!(status & (GLAMO_STAT1_MMC_RB_RRDY |
-                            GLAMO_STAT1_MMC_RTOUT |
-                            GLAMO_STAT1_MMC_DTOUT |
-                            GLAMO_STAT1_MMC_BWERR |
-                            GLAMO_STAT1_MMC_BRERR)))) && (insanity_timeout--));
+       glamo_mci_fix_card_div(host, host->clk_div);
 
 
-       if (insanity_timeout < 0)
-               dev_info(&host->pdev->dev, "command timeout, continuing\n");
+       glamo_mci_send_command(host, cmd);
 
 
-       if (status & (GLAMO_STAT1_MMC_RTOUT |
-                     GLAMO_STAT1_MMC_DTOUT))
-               cmd->error = -ETIMEDOUT;
-       if (status & (GLAMO_STAT1_MMC_BWERR |
-                     GLAMO_STAT1_MMC_BRERR))
-               cmd->error = -EILSEQ;
-
-       if (host->cmd_is_stop)
-               goto bail;
-
-       if (cmd->error) {
-               dev_info(&host->pdev->dev, "Error after cmd: 0x%x\n", status);
-               goto done;
-       }
-       /*
-        * mangle the response registers in two different exciting
-        * undocumented ways discovered by trial and error
-        */
-       if (mmc_resp_type(cmd) == MMC_RSP_R2)
-               /* grab the response */
-               for (n = 0; n < 8; n++) /* super mangle power 1 */
-                       pu16[n ^ 6] = readw(&reg_resp[n]);
-       else
-               for (n = 0; n < 3; n++) /* super mangle power 2 */
-                       pu16[n] = (readw(&reg_resp[n]) >> 8) |
-                                 (readw(&reg_resp[n + 1]) << 8);
        /*
         * if we don't have bulk data to take care of, we're done
         */
        /*
         * if we don't have bulk data to take care of, we're done
         */
-       if (!cmd->data)
-               goto done;
-       if (!(cmd->data->flags & (MMC_DATA_READ | MMC_DATA_WRITE)))
+       if (!cmd->data || cmd->error)
                goto done;
 
        /*
                goto done;
 
        /*
@@ -725,16 +573,15 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
         * I'm afraid we have to spin on the IRQ status bit and "be
         * our own INT# line"
         */
         * I'm afraid we have to spin on the IRQ status bit and "be
         * our own INT# line"
         */
-       if (!glamo_mci_def_pdata.pglamo->irq_works) {
+       if (!host->pdata->pglamo->irq_works) {
                /*
                 * we have faith we will get an "interrupt"...
                 * but something insane like suspend problems can mean
                 * we spin here forever, so we timeout after a LONG time
                 */
                /*
                 * we have faith we will get an "interrupt"...
                 * but something insane like suspend problems can mean
                 * we spin here forever, so we timeout after a LONG time
                 */
-               while ((!(readw(glamo_mci_def_pdata.pglamo->base +
+               while ((!(readw(host->pdata->pglamo->base +
                         GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC)) &&
                         GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC)) &&
-                      (timeout--))
-                       ;
+                      (timeout--));
 
                if (timeout < 0) {
                        if (cmd->data->error)
 
                if (timeout < 0) {
                        if (cmd->data->error)
@@ -742,73 +589,38 @@ static void glamo_mci_send_request(struct mmc_host *mmc)
                        dev_err(&host->pdev->dev, "Payload timeout\n");
                        goto bail;
                }
                        dev_err(&host->pdev->dev, "Payload timeout\n");
                        goto bail;
                }
+               /* ack this interrupt source */
+               writew(GLAMO_IRQ_MMC, host->pdata->pglamo->base +
+                      GLAMO_REG_IRQ_CLEAR);
 
                /* yay we are an interrupt controller! -- call the ISR
                 * it will stop clock to card
                 */
 
                /* yay we are an interrupt controller! -- call the ISR
                 * it will stop clock to card
                 */
-               glamo_mci_irq_host(host);
+               glamo_mci_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
        }
        }
-       return;
-
+    return;
 done:
 done:
-       host->complete_what = COMPLETION_NONE;
        host->mrq = NULL;
        mmc_request_done(host->mmc, cmd->mrq);
 bail:
        if (!sd_idleclk && !host->force_slow_during_powerup)
                /* stop the clock to card */
        host->mrq = NULL;
        mmc_request_done(host->mmc, cmd->mrq);
 bail:
        if (!sd_idleclk && !host->force_slow_during_powerup)
                /* stop the clock to card */
-               __glamo_mci_fix_card_div(host, -1);
+               glamo_mci_fix_card_div(host, -1);
 }
 
 static void glamo_mci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 {
        struct glamo_mci_host *host = mmc_priv(mmc);
 
 }
 
 static void glamo_mci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 {
        struct glamo_mci_host *host = mmc_priv(mmc);
 
-       host->cmd_is_stop = 0;
        host->mrq = mrq;
        glamo_mci_send_request(mmc);
 }
 
        host->mrq = mrq;
        glamo_mci_send_request(mmc);
 }
 
-#if 1
-static void glamo_mci_reset(struct glamo_mci_host *host)
-{
-       if (host->suspending) {
-               dev_err(&host->pdev->dev, "IGNORING glamo_mci_reset while "
-                                                                "suspended\n");
-               return;
-       }
-       dev_dbg(&host->pdev->dev, "******* glamo_mci_reset\n");
-       /* reset MMC controller */
-       writew(GLAMO_CLOCK_MMC_RESET | GLAMO_CLOCK_MMC_DG_TCLK |
-                  GLAMO_CLOCK_MMC_EN_TCLK | GLAMO_CLOCK_MMC_DG_M9CLK |
-                  GLAMO_CLOCK_MMC_EN_M9CLK,
-                  glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_MMC);
-       udelay(10);
-       /* and disable reset */
-       writew(GLAMO_CLOCK_MMC_DG_TCLK |
-                  GLAMO_CLOCK_MMC_EN_TCLK | GLAMO_CLOCK_MMC_DG_M9CLK |
-                  GLAMO_CLOCK_MMC_EN_M9CLK,
-                  glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_MMC);
-}
-#endif
-static inline int glamo_mci_get_mv(int vdd)
-{
-       int mv = 1650;
-
-       if (vdd > 7)
-               mv += 350 + 100 * (vdd - 8);
-
-       return mv;
-}
-
 static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
        struct glamo_mci_host *host = mmc_priv(mmc);
 static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
        struct glamo_mci_host *host = mmc_priv(mmc);
-       struct regulator *regulator;
-       int n = 0;
-       int div;
+       int bus_width = 0;
        int powering = 0;
        int powering = 0;
-       int mv;
 
        if (host->suspending) {
                dev_err(&host->pdev->dev, "IGNORING glamo_mci_set_ios while "
 
        if (host->suspending) {
                dev_err(&host->pdev->dev, "IGNORING glamo_mci_set_ios while "
@@ -816,16 +628,11 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                return;
        }
 
                return;
        }
 
-       regulator = host->regulator;
-
        /* Set power */
        switch(ios->power_mode) {
        case MMC_POWER_UP:
        /* Set power */
        switch(ios->power_mode) {
        case MMC_POWER_UP:
-               if (host->pdata->glamo_can_set_mci_power()) {
-                       mv = glamo_mci_get_mv(ios->vdd);
-                       regulator_set_voltage(regulator, mv * 1000, mv * 1000);
-                       regulator_enable(regulator);
-               }
+        mmc_regulator_set_ocr(host->regulator, ios->vdd);
+               host->vdd_current = ios->vdd;
                break;
        case MMC_POWER_ON:
                /*
                break;
        case MMC_POWER_ON:
                /*
@@ -835,15 +642,11 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                host->force_slow_during_powerup = 1;
 
                if (host->vdd_current != ios->vdd) {
                host->force_slow_during_powerup = 1;
 
                if (host->vdd_current != ios->vdd) {
-                       if (host->pdata->glamo_can_set_mci_power()) {
-                               mv = glamo_mci_get_mv(ios->vdd);
-                               regulator_set_voltage(regulator, mv * 1000, mv * 1000);
-                               printk(KERN_INFO "SD power -> %dmV\n", mv);
-                       }
+            mmc_regulator_set_ocr(host->regulator, ios->vdd);
                        host->vdd_current = ios->vdd;
                }
                if (host->power_mode_current == MMC_POWER_OFF) {
                        host->vdd_current = ios->vdd;
                }
                if (host->power_mode_current == MMC_POWER_OFF) {
-                       glamo_engine_enable(glamo_mci_def_pdata.pglamo,
+                       glamo_engine_enable(host->pdata->pglamo,
                                                              GLAMO_ENGINE_MMC);
                        powering = 1;
                }
                                                              GLAMO_ENGINE_MMC);
                        powering = 1;
                }
@@ -854,18 +657,18 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                if (host->power_mode_current == MMC_POWER_OFF)
                        break;
                /* never want clocking with dead card */
                if (host->power_mode_current == MMC_POWER_OFF)
                        break;
                /* never want clocking with dead card */
-               __glamo_mci_fix_card_div(host, -1);
+               glamo_mci_fix_card_div(host, -1);
 
 
-               glamo_engine_disable(glamo_mci_def_pdata.pglamo,
+               glamo_engine_disable(host->pdata->pglamo,
                                     GLAMO_ENGINE_MMC);
                                     GLAMO_ENGINE_MMC);
-               regulator_disable(regulator);
+
+               mmc_regulator_set_ocr(host->regulator, 0);
                host->vdd_current = -1;
                break;
        }
        host->power_mode_current = ios->power_mode;
 
                host->vdd_current = -1;
                break;
        }
        host->power_mode_current = ios->power_mode;
 
-       host->real_rate = __glamo_mci_set_card_clock(host, ios->clock, &div);
-       host->clk_div = div;
+       glamo_mci_set_card_clock(host, ios->clock);
 
        /* after power-up, we are meant to give it >= 74 clocks so it can
         * initialize itself.  Doubt any modern cards need it but anyway...
 
        /* after power-up, we are meant to give it >= 74 clocks so it can
         * initialize itself.  Doubt any modern cards need it but anyway...
@@ -875,7 +678,7 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
        if (!sd_idleclk && !host->force_slow_during_powerup)
                /* stop the clock to card, because we are idle until transfer */
 
        if (!sd_idleclk && !host->force_slow_during_powerup)
                /* stop the clock to card, because we are idle until transfer */
-               __glamo_mci_fix_card_div(host, -1);
+               glamo_mci_fix_card_div(host, -1);
 
        if ((ios->power_mode == MMC_POWER_ON) ||
            (ios->power_mode == MMC_POWER_UP)) {
 
        if ((ios->power_mode == MMC_POWER_ON) ||
            (ios->power_mode == MMC_POWER_UP)) {
@@ -888,14 +691,13 @@ static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                dev_info(&host->pdev->dev, "glamo_mci_set_ios: power down.\n");
 
        /* set bus width */
                dev_info(&host->pdev->dev, "glamo_mci_set_ios: power down.\n");
 
        /* set bus width */
-       host->bus_width = ios->bus_width;
-       if (host->bus_width == MMC_BUS_WIDTH_4)
-               n = GLAMO_BASIC_MMC_EN_4BIT_DATA;
-       writew((readw(host->base + GLAMO_REG_MMC_BASIC) &
-                                         (~(GLAMO_BASIC_MMC_EN_4BIT_DATA |
-                                            GLAMO_BASIC_MMC_EN_DR_STR0 |
-                                            GLAMO_BASIC_MMC_EN_DR_STR1))) | n |
-                              sd_drive << 6, host->base + GLAMO_REG_MMC_BASIC);
+       if (ios->bus_width == MMC_BUS_WIDTH_4)
+               bus_width = GLAMO_BASIC_MMC_EN_4BIT_DATA;
+       glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC,
+                                              GLAMO_BASIC_MMC_EN_4BIT_DATA |
+                                              GLAMO_BASIC_MMC_EN_DR_STR0 |
+                                              GLAMO_BASIC_MMC_EN_DR_STR1,
+                                                  bus_width | sd_drive << 6);
 }
 
 
 }
 
 
@@ -930,149 +732,160 @@ static int glamo_mci_probe(struct platform_device *pdev)
        host = mmc_priv(mmc);
        host->mmc = mmc;
        host->pdev = pdev;
        host = mmc_priv(mmc);
        host->mmc = mmc;
        host->pdev = pdev;
-       host->pdata = &glamo_mci_def_pdata;
+       host->pdata = pdev->dev.platform_data;
        host->power_mode_current = MMC_POWER_OFF;
 
        host->power_mode_current = MMC_POWER_OFF;
 
-       host->complete_what = COMPLETION_NONE;
-       host->pio_active = XFER_NONE;
-
-       spin_lock_init(&host->complete_lock);
+       spin_lock_init(&host->lock);
        INIT_WORK(&host->irq_work, glamo_mci_irq_worker);
 
        INIT_WORK(&host->irq_work, glamo_mci_irq_worker);
 
-       host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!host->mem) {
+       host->regulator = regulator_get(pdev->dev.parent, "SD_3V3");
+       if (!host->regulator) {
+               dev_err(&pdev->dev, "Cannot proceed without regulator.\n");
+               ret = -ENODEV;
+               goto probe_free_host;
+       }
+
+       host->mmio_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!host->mmio_mem) {
                dev_err(&pdev->dev,
                        "failed to get io memory region resouce.\n");
                dev_err(&pdev->dev,
                        "failed to get io memory region resouce.\n");
-
                ret = -ENOENT;
                ret = -ENOENT;
-               goto probe_free_host;
+               goto probe_regulator_put;
        }
 
        }
 
-       host->mem = request_mem_region(host->mem->start,
-               RESSIZE(host->mem), pdev->name);
+       host->mmio_mem = request_mem_region(host->mmio_mem->start,
+                                           resource_size(host->mmio_mem),
+                                           pdev->name);
 
 
-       if (!host->mem) {
+       if (!host->mmio_mem) {
                dev_err(&pdev->dev, "failed to request io memory region.\n");
                ret = -ENOENT;
                dev_err(&pdev->dev, "failed to request io memory region.\n");
                ret = -ENOENT;
-               goto probe_free_host;
+               goto probe_regulator_put;
        }
 
        }
 
-       host->base = ioremap(host->mem->start, RESSIZE(host->mem));
-       if (!host->base) {
+       host->mmio_base = ioremap(host->mmio_mem->start,
+                                 resource_size(host->mmio_mem));
+       if (!host->mmio_base) {
                dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
                ret = -EINVAL;
                dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
                ret = -EINVAL;
-               goto probe_free_mem_region;
-       }
-
-       host->regulator = regulator_get(&pdev->dev, "SD_3V3");
-       if (!host->regulator) {
-               dev_err(&pdev->dev, "Cannot proceed without regulator.\n");
-               return -ENODEV;
+               goto probe_free_mem_region_mmio;
        }
 
        }
 
-       /* set the handler for our bit of the shared chip irq register */
-       set_irq_handler(IRQ_GLAMO(GLAMO_IRQIDX_MMC), glamo_mci_irq);
-       /* stash host as our handler's private data */
-       set_irq_data(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
 
        /* Get ahold of our data buffer we use for data in and out on MMC */
 
        /* Get ahold of our data buffer we use for data in and out on MMC */
-       host->mem_data = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-       if (!host->mem_data) {
+       host->data_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+       if (!host->data_mem) {
                dev_err(&pdev->dev,
                        "failed to get io memory region resource.\n");
                ret = -ENOENT;
                dev_err(&pdev->dev,
                        "failed to get io memory region resource.\n");
                ret = -ENOENT;
-               goto probe_iounmap;
+               goto probe_iounmap_mmio;
        }
 
        }
 
-       host->mem_data = request_mem_region(host->mem_data->start,
-               RESSIZE(host->mem_data), pdev->name);
+       host->data_mem = request_mem_region(host->data_mem->start,
+                                           resource_size(host->data_mem),
+                                                                               pdev->name);
 
 
-       if (!host->mem_data) {
+       if (!host->data_mem) {
                dev_err(&pdev->dev, "failed to request io memory region.\n");
                ret = -ENOENT;
                dev_err(&pdev->dev, "failed to request io memory region.\n");
                ret = -ENOENT;
-               goto probe_iounmap;
+               goto probe_iounmap_mmio;
        }
        }
-       host->base_data = ioremap(host->mem_data->start,
-                                         RESSIZE(host->mem_data));
-       host->data_max_size = RESSIZE(host->mem_data);
+       host->data_base = ioremap(host->data_mem->start,
+                                 resource_size(host->data_mem));
 
 
-       if (host->base_data == 0) {
+       if (host->data_base == 0) {
                dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
                ret = -EINVAL;
                goto probe_free_mem_region_data;
        }
 
                dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
                ret = -EINVAL;
                goto probe_free_mem_region_data;
        }
 
-       host->vdd_current = 0;
+       ret = request_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), glamo_mci_irq, IRQF_SHARED,
+                      pdev->name, host);
+    if (ret) {
+               dev_err(&pdev->dev, "failed to register irq.\n");
+               goto probe_iounmap_data;
+       }
+
+
+       host->vdd_current = -1;
        host->clk_rate = 50000000; /* really it's 49152000 */
        host->clk_div = 16;
 
        /* explain our host controller capabilities */
        host->clk_rate = 50000000; /* really it's 49152000 */
        host->clk_div = 16;
 
        /* explain our host controller capabilities */
-       mmc->ops        = &glamo_mci_ops;
-       mmc->ocr_avail  = host->pdata->ocr_avail;
-       mmc->caps       = MMC_CAP_4_BIT_DATA |
-                         MMC_CAP_MMC_HIGHSPEED |
-                         MMC_CAP_SD_HIGHSPEED;
-       mmc->f_min      = host->clk_rate / 256;
-       mmc->f_max      = sd_max_clk;
-
-       mmc->max_blk_count      = (1 << 16) - 1; /* GLAMO_REG_MMC_RB_BLKCNT */
-       mmc->max_blk_size       = (1 << 12) - 1; /* GLAMO_REG_MMC_RB_BLKLEN */
-       mmc->max_req_size       = RESSIZE(host->mem_data) / 2;
-       mmc->max_seg_size       = mmc->max_req_size;
-       mmc->max_phys_segs      = 1; /* hw doesn't talk about segs??? */
-       mmc->max_hw_segs        = 1;
-
-       dev_info(&host->pdev->dev, "probe: mapped mci_base:%p irq:%u.\n",
-               host->base, host->irq);
+       mmc->ops       = &glamo_mci_ops;
+       mmc->ocr_avail = mmc_regulator_get_ocrmask(host->regulator);
+       mmc->caps      = MMC_CAP_4_BIT_DATA |
+                        MMC_CAP_MMC_HIGHSPEED |
+                        MMC_CAP_SD_HIGHSPEED;
+       mmc->f_min     = host->clk_rate / 256;
+       mmc->f_max     = sd_max_clk;
+
+       mmc->max_blk_count = (1 << 16) - 1; /* GLAMO_REG_MMC_RB_BLKCNT */
+       mmc->max_blk_size  = (1 << 12) - 1; /* GLAMO_REG_MMC_RB_BLKLEN */
+       mmc->max_req_size  = resource_size(host->data_mem);
+       mmc->max_seg_size  = mmc->max_req_size;
+       mmc->max_phys_segs = 128;
+       mmc->max_hw_segs   = 128;
 
        platform_set_drvdata(pdev, mmc);
 
 
        platform_set_drvdata(pdev, mmc);
 
-       glamo_engine_enable(glamo_mci_def_pdata.pglamo, GLAMO_ENGINE_MMC);
-       glamo_mci_reset(host);
+       glamo_engine_enable(host->pdata->pglamo, GLAMO_ENGINE_MMC);
+    glamo_engine_reset(host->pdata->pglamo, GLAMO_ENGINE_MMC);
 
        if ((ret = mmc_add_host(mmc))) {
                dev_err(&pdev->dev, "failed to add mmc host.\n");
 
        if ((ret = mmc_add_host(mmc))) {
                dev_err(&pdev->dev, "failed to add mmc host.\n");
-               goto probe_free_mem_region_data;
+               goto probe_freeirq;
        }
 
        }
 
-       dev_info(&pdev->dev,"initialisation done.\n");
-       return 0;
-
- probe_free_mem_region_data:
-       release_mem_region(host->mem_data->start, RESSIZE(host->mem_data));
+       writew((u16)(host->data_mem->start),
+              host->mmio_base + GLAMO_REG_MMC_WDATADS1);
+       writew((u16)((host->data_mem->start) >> 16),
+              host->mmio_base + GLAMO_REG_MMC_WDATADS2);
 
 
- probe_iounmap:
-       iounmap(host->base);
+       writew((u16)host->data_mem->start, host->mmio_base +
+              GLAMO_REG_MMC_RDATADS1);
+       writew((u16)(host->data_mem->start >> 16), host->mmio_base +
+              GLAMO_REG_MMC_RDATADS2);
 
 
- probe_free_mem_region:
-       release_mem_region(host->mem->start, RESSIZE(host->mem));
+       dev_info(&pdev->dev,"initialisation done.\n");
+       return 0;
 
 
- probe_free_host:
+probe_freeirq:
+       free_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
+probe_iounmap_data:
+    iounmap(host->data_base);
+probe_free_mem_region_data:
+       release_mem_region(host->data_mem->start, resource_size(host->data_mem));
+probe_iounmap_mmio:
+       iounmap(host->mmio_base);
+probe_free_mem_region_mmio:
+       release_mem_region(host->mmio_mem->start, resource_size(host->mmio_mem));
+probe_regulator_put:
+    regulator_put(host->regulator);
+probe_free_host:
        mmc_free_host(mmc);
        mmc_free_host(mmc);
- probe_out:
+probe_out:
        return ret;
 }
 
 static int glamo_mci_remove(struct platform_device *pdev)
 {
        return ret;
 }
 
 static int glamo_mci_remove(struct platform_device *pdev)
 {
-       struct mmc_host         *mmc  = platform_get_drvdata(pdev);
-       struct glamo_mci_host   *host = mmc_priv(mmc);
-       struct regulator *regulator;
+       struct mmc_host *mmc = platform_get_drvdata(pdev);
+       struct glamo_mci_host *host = mmc_priv(mmc);
+
+       free_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
 
        mmc_remove_host(mmc);
 
        mmc_remove_host(mmc);
-       /* stop using our handler, revert it to default */
-       set_irq_handler(IRQ_GLAMO(GLAMO_IRQIDX_MMC), handle_level_irq);
-       iounmap(host->base);
-       iounmap(host->base_data);
-       release_mem_region(host->mem->start, RESSIZE(host->mem));
-       release_mem_region(host->mem_data->start, RESSIZE(host->mem_data));
-
-       regulator = host->regulator;
-       regulator_put(regulator);
-       
+       iounmap(host->mmio_base);
+       iounmap(host->data_base);
+       release_mem_region(host->mmio_mem->start, resource_size(host->mmio_mem));
+       release_mem_region(host->data_mem->start, resource_size(host->data_mem));
+
+       regulator_put(host->regulator);
+
        mmc_free_host(mmc);
 
        mmc_free_host(mmc);
 
-       glamo_engine_disable(glamo_mci_def_pdata.pglamo, GLAMO_ENGINE_MMC);
+       glamo_engine_disable(host->pdata->pglamo, GLAMO_ENGINE_MMC);
        return 0;
 }
 
        return 0;
 }
 
@@ -1092,7 +905,7 @@ static int glamo_mci_suspend(struct platform_device *dev, pm_message_t state)
         * make sure the clock was running during suspend and consequently
         * resume
         */
         * make sure the clock was running during suspend and consequently
         * resume
         */
-       __glamo_mci_fix_card_div(host, host->clk_div);
+       glamo_mci_fix_card_div(host, host->clk_div);
 
        /* we are going to do more commands to override this in
         * mmc_suspend_host(), so we need to change sd_idleclk for the
 
        /* we are going to do more commands to override this in
         * mmc_suspend_host(), so we need to change sd_idleclk for the
@@ -1104,8 +917,6 @@ static int glamo_mci_suspend(struct platform_device *dev, pm_message_t state)
        ret = mmc_suspend_host(mmc, state);
 
        host->suspending++;
        ret = mmc_suspend_host(mmc, state);
 
        host->suspending++;
-       /* so that when we resume, we use any modified max rate */
-       mmc->f_max = sd_max_clk;
 
        return ret;
 }
 
        return ret;
 }
@@ -1119,7 +930,7 @@ int glamo_mci_resume(struct platform_device *dev)
        sd_idleclk = 1;
 
        glamo_engine_enable(host->pdata->pglamo, GLAMO_ENGINE_MMC);
        sd_idleclk = 1;
 
        glamo_engine_enable(host->pdata->pglamo, GLAMO_ENGINE_MMC);
-       glamo_mci_reset(host);
+       glamo_engine_reset(host->pdata->pglamo, GLAMO_ENGINE_MMC);
 
        host->suspending--;
 
 
        host->suspending--;
 
@@ -1149,7 +960,6 @@ static struct platform_driver glamo_mci_driver =
 
 static int __init glamo_mci_init(void)
 {
 
 static int __init glamo_mci_init(void)
 {
-       spin_lock_init(&clock_lock);
        platform_driver_register(&glamo_mci_driver);
        return 0;
 }
        platform_driver_register(&glamo_mci_driver);
        return 0;
 }
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