path: root/target/linux/s3c24xx/patches-2.6.26/0027-glamo-mmc.patch.patch

From 448ffab41f86596340e9f34dc8141bf2ca857e4e Mon Sep 17 00:00:00 2001
From: mokopatches <mokopatches@openmoko.org>
Date: Wed, 16 Jul 2008 14:44:51 +0100
Subject: [PATCH] glamo-mmc.patch

---
 drivers/mfd/glamo/Kconfig      |    9 +
 drivers/mfd/glamo/Makefile     |    1 +
 drivers/mfd/glamo/glamo-core.c |   17 +-
 drivers/mfd/glamo/glamo-mci.c  |  837 ++++++++++++++++++++++++++++++++++++++++
 drivers/mfd/glamo/glamo-mci.h  |   76 ++++
 drivers/mfd/glamo/glamo-regs.h |  169 ++++++++-
 6 files changed, 1099 insertions(+), 10 deletions(-)
 create mode 100644 drivers/mfd/glamo/glamo-mci.c
 create mode 100644 drivers/mfd/glamo/glamo-mci.h

diff --git a/drivers/mfd/glamo/Kconfig b/drivers/mfd/glamo/Kconfig
index b99f2b2..ec2ae3d 100644
--- a/drivers/mfd/glamo/Kconfig
+++ b/drivers/mfd/glamo/Kconfig
@@ -33,3 +33,12 @@ config MFD_GLAMO_SPI_FB
 	 control channel.  This SPI interface is frequently used to
 	 interconnect the LCM control interface.
 
+config MFD_GLAMO_MCI
+	tristate "Glamo S3C SD/MMC Card Interface support"
+	depends on MFD_GLAMO && MMC
+	help
+	  This selects a driver for the MCI interface found in
+	  the S-Media GLAMO chip, as used in OpenMoko
+	  neo1973 GTA-02.
+
+	  If unsure, say N.
\ No newline at end of file
diff --git a/drivers/mfd/glamo/Makefile b/drivers/mfd/glamo/Makefile
index fb53982..dc64d50 100644
--- a/drivers/mfd/glamo/Makefile
+++ b/drivers/mfd/glamo/Makefile
@@ -8,4 +8,5 @@ obj-$(CONFIG_MFD_GLAMO_SPI_GPIO) 	+= glamo-spi-gpio.o
 
 obj-$(CONFIG_MFD_GLAMO_FB)		+= glamo-fb.o
 obj-$(CONFIG_MFD_GLAMO_SPI_FB)		+= glamo-lcm-spi.o
+obj-$(CONFIG_MFD_GLAMO_MCI)		+= glamo-mci.o
 
diff --git a/drivers/mfd/glamo/glamo-core.c b/drivers/mfd/glamo/glamo-core.c
index acf545f..8497de2 100644
--- a/drivers/mfd/glamo/glamo-core.c
+++ b/drivers/mfd/glamo/glamo-core.c
@@ -440,7 +440,22 @@ int glamo_engine_disable(struct glamo_core *glamo, enum glamo_engine engine)
 {
 	spin_lock(&glamo->lock);
 	switch (engine) {
-	/* FIXME: Implementation */
+	case GLAMO_ENGINE_MMC:
+		__reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_MMC, 0,
+						   GLAMO_CLOCK_MMC_EN_M9CLK |
+						   GLAMO_CLOCK_MMC_EN_TCLK |
+						   GLAMO_CLOCK_MMC_DG_M9CLK |
+						   GLAMO_CLOCK_MMC_DG_TCLK);
+		__reg_set_bit_mask(glamo, GLAMO_REG_HOSTBUS(2), 0,
+						   GLAMO_HOSTBUS2_MMIO_EN_MMC);
+		/* disable the TCLK divider clk input */
+		__reg_set_bit_mask(glamo, GLAMO_REG_CLOCK_GEN5_1, 0,
+						GLAMO_CLOCK_GEN51_EN_DIV_TCLK);
+		/* good idea to hold the thing in reset when we power it off? */
+/*		writew(readw(glamo->base + GLAMO_REG_CLOCK_MMC) |
+		      GLAMO_CLOCK_MMC_RESET, glamo->base + GLAMO_REG_CLOCK_MMC);
+*/
+		break;
 	default:
 		break;
 	}
diff --git a/drivers/mfd/glamo/glamo-mci.c b/drivers/mfd/glamo/glamo-mci.c
new file mode 100644
index 0000000..f559e5e
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-mci.c
@@ -0,0 +1,837 @@
+/*
+ *  linux/drivers/mmc/host/glamo-mmc.c - Glamo MMC driver
+ *
+ *  Copyright (C) 2007 OpenMoko, Inc,  Andy Green <andy@openmoko.com>
+ *  Based on S3C MMC driver that was:
+ *  Copyright (C) 2004-2006 maintech GmbH, Thomas Kleffel <tk@maintech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/clk.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/host.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/pcf50633.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <asm/dma.h>
+#include <asm/dma-mapping.h>
+#include <asm/io.h>
+
+#include "glamo-mci.h"
+#include "glamo-core.h"
+#include "glamo-regs.h"
+
+/* from glamo-core.c */
+extern struct glamo_mci_pdata glamo_mci_def_pdata;
+
+
+#define DRIVER_NAME "glamo-mci"
+#define RESSIZE(ressource) (((ressource)->end - (ressource)->start) + 1)
+
+static void glamo_mci_send_request(struct mmc_host *mmc);
+
+unsigned char CRC7(u8 * pu8, int cnt)
+{
+	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;
+}
+
+/* these _dly versions account for the dead time rules for reg access */
+static u16 readw_dly(u16 __iomem * pu16)
+{
+	glamo_reg_access_delay();
+	return readw(pu16);
+}
+
+static void writew_dly(u16 val, u16 __iomem * pu16)
+{
+	glamo_reg_access_delay();
+	writew(val, pu16);
+}
+
+static int get_data_buffer(struct glamo_mci_host *host,
+			   volatile u32 *words, volatile u16 **pointer)
+{
+	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;
+
+	BUG_ON(((long)(*pointer)) & 1);
+
+	host->pio_sgptr++;
+
+	/* dev_info(&host->pdev->dev, "new buffer (%i/%i)\n",
+	      host->pio_sgptr, host->mrq->data->sg_len); */
+	return 0;
+}
+
+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;
+		}
+
+		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
+		while (host->pio_words--)
+			*host->pio_ptr++ = *from_ptr++;
+#ifdef DEBUG
+		print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 16, 1,
+			       (void *)block, res, 1);
+#endif
+	}
+}
+
+static int do_pio_write(struct glamo_mci_host *host)
+{
+	int res = 0;
+	volatile u16 __iomem *to_ptr = host->base_data;
+	int err = 0;
+
+	dev_dbg(&host->pdev->dev, "pio_write():\n");
+	while (!res) {
+		res = get_data_buffer(host, &host->pio_words, &host->pio_ptr);
+		if (res)
+			continue;
+
+		dev_dbg(&host->pdev->dev, "pio_write():new source: [%i]@[%p]\n",
+			host->pio_words, host->pio_ptr);
+
+		host->pio_count += host->pio_words << 1;
+		while (host->pio_words--)
+			writew(*host->pio_ptr++, to_ptr++);
+	}
+
+	dev_dbg(&host->pdev->dev, "pio_write(): complete\n");
+	host->pio_active = XFER_NONE;
+	return err;
+}
+
+static void glamo_mci_irq(unsigned int irq, struct irq_desc *desc)
+{
+	struct glamo_mci_host *host = (struct glamo_mci_host *)
+				      desc->handler_data;
+	u16 status;
+	struct mmc_command *cmd;
+	unsigned long iflags;
+
+	if (!host)
+		return;
+	if (!host->mrq)
+		return;
+	cmd = host->mrq->cmd;
+	if (!cmd)
+		return;
+
+	spin_lock_irqsave(&host->complete_lock, iflags);
+
+	status = readw_dly(host->base + GLAMO_REG_MMC_RB_STAT1);
+
+	/* ack this interrupt source */
+	writew(GLAMO_IRQ_MMC,
+	       glamo_mci_def_pdata.pglamo->base + GLAMO_REG_IRQ_CLEAR);
+
+	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 (cmd->error) {
+		dev_err(&host->pdev->dev, "Error after cmd: 0x%x\n", status);
+		goto done;
+	}
+
+	if (host->pio_active == XFER_READ)
+		do_pio_read(host);
+
+	host->mrq->data->bytes_xfered = host->pio_count;
+	dev_dbg(&host->pdev->dev, "status = 0x%04x count=%d\n",
+		 status, host->pio_count);
+
+	/* 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;
+	}
+done:
+	host->complete_what = COMPLETION_NONE;
+	host->mrq = NULL;
+	mmc_request_done(host->mmc, cmd->mrq);
+	spin_unlock_irqrestore(&host->complete_lock, iflags);
+}
+
+static int glamo_mci_send_command(struct glamo_mci_host *host,
+				  struct mmc_command *cmd)
+{
+	u8 u8a[6];
+	u16 fire = 0;
+
+	/* if we can't do it, reject as busy */
+	if (!readw_dly(host->base + GLAMO_REG_MMC_RB_STAT1) &
+	     GLAMO_STAT1_MMC_IDLE) {
+		host->mrq = NULL;
+		cmd->error = -EBUSY;
+		mmc_request_done(host->mmc, host->mrq);
+		return -EBUSY;
+	}
+
+	/* create an array in wire order for CRC computation */
+	u8a[0] = 0x40 | (cmd->opcode & 0x3f);
+	u8a[1] = (u8)(cmd->arg >> 24);
+	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 */
+
+	/* issue the wire-order array including CRC in register order */
+	writew_dly((u8a[4] << 8) | u8a[5], host->base + GLAMO_REG_MMC_CMD_REG1);
+	writew_dly((u8a[2] << 8) | u8a[3], host->base + GLAMO_REG_MMC_CMD_REG2);
+	writew_dly((u8a[0] << 8) | u8a[1], host->base + GLAMO_REG_MMC_CMD_REG3);
+
+	/* command index toggle */
+	fire |= (host->ccnt & 1) << 12;
+
+	/* set type of command */
+	switch (mmc_cmd_type(cmd)) {
+	case MMC_CMD_BC:
+		fire |= GLAMO_FIRE_MMC_CMDT_BNR;
+		break;
+	case MMC_CMD_BCR:
+		fire |= GLAMO_FIRE_MMC_CMDT_BR;
+		break;
+	case MMC_CMD_AC:
+		fire |= GLAMO_FIRE_MMC_CMDT_AND;
+		break;
+	case MMC_CMD_ADTC:
+		fire |= GLAMO_FIRE_MMC_CMDT_AD;
+		break;
+	}
+	/*
+	 * if it expects a response, set the type expected
+	 *
+	 * R1, Length  : 48bit, Normal response
+	 * R1b, Length : 48bit, same R1, but added card busy status
+	 * R2, Length  : 136bit (really 128 bits with CRC snipped)
+	 * R3, Length  : 48bit (OCR register value)
+	 * R4, Length  : 48bit, SDIO_OP_CONDITION, Reverse SDIO Card
+	 * R5, Length  : 48bit, IO_RW_DIRECTION, Reverse SDIO Card
+	 * R6, Length  : 48bit (RCA register)
+	 * R7, Length  : 48bit (interface condition, VHS(voltage supplied),
+	 *                     check pattern, CRC7)
+	 */
+	switch (mmc_resp_type(cmd)) {
+	case MMC_RSP_R6: /* same index as R7 and R1 */
+		fire |= GLAMO_FIRE_MMC_RSPT_R1;
+		break;
+	case MMC_RSP_R1B:
+		fire |= GLAMO_FIRE_MMC_RSPT_R1b;
+		break;
+	case MMC_RSP_R2:
+		fire |= GLAMO_FIRE_MMC_RSPT_R2;
+		break;
+	case MMC_RSP_R3:
+		fire |= GLAMO_FIRE_MMC_RSPT_R3;
+		break;
+	/* R4 and R5 supported by chip not defined in linux/mmc/core.h (sdio) */
+	}
+	/*
+	 * From the command index, set up the command class in the host ctrllr
+	 *
+	 * missing guys present on chip but couldn't figure out how to use yet:
+	 *     0x0 "stream read"
+	 *     0x9 "cancel running command"
+	 */
+	switch (cmd->opcode) {
+	case MMC_READ_SINGLE_BLOCK:
+		fire |= GLAMO_FIRE_MMC_CC_SBR; /* single block read */
+		break;
+	case MMC_SWITCH: /* 64 byte payload */
+	case 0x33: /* observed issued by MCI */
+	case MMC_READ_MULTIPLE_BLOCK:
+		/* we will get an interrupt off this */
+		if (!cmd->mrq->stop)
+			/* multiblock no stop */
+			fire |= GLAMO_FIRE_MMC_CC_MBRNS;
+		else
+			 /* multiblock with stop */
+			fire |= GLAMO_FIRE_MMC_CC_MBRS;
+		break;
+	case MMC_WRITE_BLOCK:
+		fire |= GLAMO_FIRE_MMC_CC_SBW; /* single block write */
+		break;
+	case MMC_WRITE_MULTIPLE_BLOCK:
+		if (cmd->mrq->stop)
+			 /* multiblock with stop */
+			fire |= GLAMO_FIRE_MMC_CC_MBWS;
+		else
+			 /* multiblock NO stop-- 'RESERVED'? */
+			fire |= GLAMO_FIRE_MMC_CC_MBWNS;
+		break;
+	case MMC_STOP_TRANSMISSION:
+		fire |= GLAMO_FIRE_MMC_CC_STOP; /* STOP */
+		break;
+	default:
+		fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
+		break;
+	}
+	/* enforce timeout */
+	if (cmd->data) {
+		if (cmd->data->timeout_clks)
+			writew_dly(cmd->data->timeout_clks >> 4, /* / 16 clks */
+					host->base + GLAMO_REG_MMC_TIMEOUT);
+		else
+			writew_dly(0xfff, host->base + GLAMO_REG_MMC_TIMEOUT);
+	} else
+		writew(0xfff, host->base + GLAMO_REG_MMC_TIMEOUT);
+
+	/* Generate interrupt on txfer; drive strength max */
+	writew_dly((readw_dly(host->base + GLAMO_REG_MMC_BASIC) & 0xfe) |
+		   0x0800 | GLAMO_BASIC_MMC_NO_CLK_RD_WAIT |
+		   GLAMO_BASIC_MMC_EN_COMPL_INT |
+		   GLAMO_BASIC_MMC_EN_DR_STR0 |
+		   GLAMO_BASIC_MMC_EN_DR_STR1,
+		   host->base + GLAMO_REG_MMC_BASIC);
+
+	/* send the command out on the wire */
+	/* dev_info(&host->pdev->dev, "Using FIRE %04X\n", fire); */
+	writew_dly(fire, host->base + GLAMO_REG_MMC_CMD_FIRE);
+	cmd->error = 0;
+	return 0;
+}
+
+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
+	 */
+	if (data->flags & MMC_DATA_READ) {
+		writew_dly((u16)(GLAMO_FB_SIZE + (RESSIZE(host->mem_data) / 2)),
+			   host->base + GLAMO_REG_MMC_WDATADS1);
+		writew_dly((u16)((GLAMO_FB_SIZE +
+					(RESSIZE(host->mem_data) / 2)) >> 16),
+			   host->base + GLAMO_REG_MMC_WDATADS2);
+	} else {
+		writew_dly((u16)GLAMO_FB_SIZE, host->base +
+					       GLAMO_REG_MMC_RDATADS1);
+		writew_dly((u16)(GLAMO_FB_SIZE >> 16), host->base +
+						       GLAMO_REG_MMC_RDATADS2);
+	}
+
+	/* set up the block info */
+	writew_dly(data->blksz, host->base + GLAMO_REG_MMC_DATBLKLEN);
+	writew_dly(data->blocks, host->base + GLAMO_REG_MMC_DATBLKCNT);
+	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;
+	/* 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);
+	}
+	host->pio_active = XFER_READ;
+	return 0;
+}
+
+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 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;
+
+	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;
+			cmd->data->error = -EIO;
+			mmc_request_done(mmc, mrq);
+			return;
+		}
+	}
+
+	dev_dbg(&host->pdev->dev,"cmd 0x%x, "
+		 "arg 0x%x data=%p mrq->stop=%p flags 0x%x\n",
+		 cmd->opcode, cmd->arg, cmd->data, cmd->mrq->stop,
+		 cmd->flags);
+
+	if (glamo_mci_send_command(host, cmd))
+		return;
+	/*
+	 * we must spin until response is ready or timed out
+	 * -- we don't get interrupts unless there is a bulk rx
+	 */
+	do
+		status = readw_dly(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))));
+
+	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)
+		return;
+
+	if (cmd->error) {
+		dev_err(&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_dly(&reg_resp[n]);
+	else
+		for (n = 0; n < 3; n++) /* super mangle power 2 */
+			pu16[n] = (readw_dly(&reg_resp[n]) >> 8) |
+				  (readw_dly(&reg_resp[n + 1]) << 8);
+	/*
+	 * 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)))
+		goto done;
+	/*
+	 * Otherwise can can use the interrupt as async completion --
+	 * if there is read data coming, or we wait for write data to complete,
+	 * exit without mmc_request_done() as the payload interrupt
+	 * will service it
+	 */
+	dev_dbg(&host->pdev->dev, "Waiting for payload data\n");
+	/*
+	 * if the glamo INT# line isn't wired (*cough* it can happen)
+	 * 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) {
+		/* we have faith we will get an "interrupt"... */
+		while (!(readw_dly(glamo_mci_def_pdata.pglamo->base +
+			 GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC))
+			;
+		/* yay we are an interrupt controller! -- call the ISR */
+		glamo_mci_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC),
+			      irq_desc + IRQ_GLAMO(GLAMO_IRQIDX_MMC));
+	}
+	return;
+
+done:
+	host->complete_what = COMPLETION_NONE;
+	host->mrq = NULL;
+	mmc_request_done(host->mmc, cmd->mrq);
+}
+
+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);
+}
+
+static void glamo_mci_reset(struct glamo_mci_host *host)
+{
+	/* reset MMC controller */
+	writew_dly(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);
+	msleep(1);
+	/* and disable reset */
+	writew_dly(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);
+}
+
+static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct glamo_mci_host *host = mmc_priv(mmc);
+	int mci_psc = 0;
+	int n = 0;
+
+	/* Set power */
+	switch(ios->power_mode) {
+	case MMC_POWER_ON:
+	case MMC_POWER_UP:
+		if (host->power_mode_current != MMC_POWER_OFF)
+			break;
+		if (host->vdd_current != ios->vdd) {
+			host->pdata->glamo_set_mci_power(ios->power_mode,
+							 ios->vdd);
+			host->vdd_current = ios->vdd;
+		}
+		glamo_engine_enable(glamo_mci_def_pdata.pglamo,
+							GLAMO_ENGINE_MMC);
+		glamo_mci_reset(host);
+		break;
+
+	case MMC_POWER_OFF:
+	default:
+		if (host->power_mode_current == MMC_POWER_OFF)
+			break;
+		glamo_engine_disable(glamo_mci_def_pdata.pglamo,
+				     GLAMO_ENGINE_MMC);
+		host->pdata->glamo_set_mci_power(MMC_POWER_OFF, 0);
+		host->vdd_current = -1;
+		break;
+	}
+	host->power_mode_current = ios->power_mode;
+
+	 /* Set clock */
+/*	if (ios->clock) { */
+	for (mci_psc = 0; mci_psc < 256; mci_psc++) {
+		host->real_rate = host->clk_rate / (mci_psc + 1);
+		if (host->real_rate <= ios->clock)
+			break;
+	}
+	if (mci_psc > 255)
+		mci_psc = 255;
+	host->clk_div = mci_psc;
+	/* set the nearest prescaler factor
+	*
+	* register shared with SCLK divisor -- no chance of race because
+	* we don't use sensor interface
+	*/
+	writew_dly((readw(glamo_mci_def_pdata.pglamo->base +
+			GLAMO_REG_CLOCK_GEN8) & 0xff00) | host->clk_div,
+		glamo_mci_def_pdata.pglamo->base + GLAMO_REG_CLOCK_GEN8);
+	/* enable clock to divider input */
+	writew_dly(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 0
+	} else { /* stop clock */
+		host->real_rate = 0;
+		/* remove clock from 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);
+	}
+#endif
+	if ((ios->power_mode == MMC_POWER_ON) ||
+	    (ios->power_mode == MMC_POWER_UP)) {
+		dev_info(&host->pdev->dev,
+			"powered (vdd = %d) clk: %lukHz div=%d (req: %ukHz). "
+			"Bus width=%d\n",ios->vdd,
+			host->real_rate / 1000, mci_psc,
+			ios->clock / 1000, ios->bus_width);
+	} else
+		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_dly((readw_dly(host->base + GLAMO_REG_MMC_BASIC) &
+					  (~GLAMO_BASIC_MMC_EN_4BIT_DATA)) | n,
+					      host->base + GLAMO_REG_MMC_BASIC);
+}
+
+
+/*
+ * no physical write protect supported by us
+ */
+static int glamo_mci_get_ro(struct mmc_host *mmc)
+{
+	return 0;
+}
+
+static struct mmc_host_ops glamo_mci_ops = {
+	.request	= glamo_mci_request,
+	.set_ios	= glamo_mci_set_ios,
+	.get_ro		= glamo_mci_get_ro,
+};
+
+static int glamo_mci_probe(struct platform_device *pdev)
+{
+	struct mmc_host 	*mmc;
+	struct glamo_mci_host 	*host;
+	int ret;
+
+	dev_info(&pdev->dev, "glamo_mci driver (C)2007 OpenMoko, Inc\n");
+
+	mmc = mmc_alloc_host(sizeof(struct glamo_mci_host), &pdev->dev);
+	if (!mmc) {
+		ret = -ENOMEM;
+		goto probe_out;
+	}
+
+	host = mmc_priv(mmc);
+	host->mmc = mmc;
+	host->pdev = pdev;
+	host->pdata = &glamo_mci_def_pdata;
+	host->power_mode_current = MMC_POWER_OFF;
+
+	host->complete_what = COMPLETION_NONE;
+	host->pio_active = XFER_NONE;
+
+	spin_lock_init(&host->complete_lock);
+
+	host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!host->mem) {
+		dev_err(&pdev->dev,
+			"failed to get io memory region resouce.\n");
+
+		ret = -ENOENT;
+		goto probe_free_host;
+	}
+
+	host->mem = request_mem_region(host->mem->start,
+		RESSIZE(host->mem), pdev->name);
+
+	if (!host->mem) {
+		dev_err(&pdev->dev, "failed to request io memory region.\n");
+		ret = -ENOENT;
+		goto probe_free_host;
+	}
+
+	host->base = ioremap(host->mem->start, RESSIZE(host->mem));
+	if (!host->base) {
+		dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
+		ret = -EINVAL;
+		goto probe_free_mem_region;
+	}
+
+	/* 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 */
+	host->mem_data = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!host->mem_data) {
+		dev_err(&pdev->dev,
+			"failed to get io memory region resource.\n");
+		ret = -ENOENT;
+		goto probe_iounmap;
+	}
+
+	host->mem_data = request_mem_region(host->mem_data->start,
+		RESSIZE(host->mem_data), pdev->name);
+
+	if (!host->mem_data) {
+		dev_err(&pdev->dev, "failed to request io memory region.\n");
+		ret = -ENOENT;
+		goto probe_iounmap;
+	}
+	host->base_data = ioremap(host->mem_data->start,
+					  RESSIZE(host->mem_data));
+	host->data_max_size = RESSIZE(host->mem_data);
+
+	if (host->base_data == 0) {
+		dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
+		ret = -EINVAL;
+		goto probe_free_mem_region_data;
+	}
+
+	host->vdd_current = 0;
+	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_MULTIWRITE |
+			  MMC_CAP_MMC_HIGHSPEED |
+			  MMC_CAP_SD_HIGHSPEED;
+	mmc->f_min 	= host->clk_rate / 256;
+	/*
+	 * held at /4 due to concerns of 100R recommended series resistor
+	 * allows 16MHz @ 4-bit --> 8MBytes/sec raw
+	 */
+	mmc->f_max 	= host->clk_rate / 3;
+
+	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);
+
+	if ((ret = mmc_add_host(mmc))) {
+		dev_err(&pdev->dev, "failed to add mmc host.\n");
+		goto probe_free_mem_region_data;
+	}
+
+	platform_set_drvdata(pdev, mmc);
+
+	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));
+
+ probe_iounmap:
+	iounmap(host->base);
+
+ probe_free_mem_region:
+	release_mem_region(host->mem->start, RESSIZE(host->mem));
+
+ probe_free_host:
+	mmc_free_host(mmc);
+ probe_out:
+	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);
+
+	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));
+	mmc_free_host(mmc);
+
+	glamo_engine_disable(glamo_mci_def_pdata.pglamo, GLAMO_ENGINE_MMC);
+	return 0;
+}
+
+
+#ifdef CONFIG_PM
+
+static int glamo_mci_suspend(struct platform_device *dev, pm_message_t state)
+{
+	struct mmc_host *mmc = platform_get_drvdata(dev);
+
+	return  mmc_suspend_host(mmc, state);
+}
+
+static int glamo_mci_resume(struct platform_device *dev)
+{
+	struct mmc_host *mmc = platform_get_drvdata(dev);
+
+	return mmc_resume_host(mmc);
+}
+
+#else /* CONFIG_PM */
+#define glamo_mci_suspend NULL
+#define glamo_mci_resume NULL
+#endif /* CONFIG_PM */
+
+
+static struct platform_driver glamo_mci_driver =
+{
+	.driver.name	= "glamo-mci",
+	.probe		= glamo_mci_probe,
+	.remove		= glamo_mci_remove,
+	.suspend	= glamo_mci_suspend,
+	.resume		= glamo_mci_resume,
+};
+
+static int __init glamo_mci_init(void)
+{
+	platform_driver_register(&glamo_mci_driver);
+	return 0;
+}
+
+static void __exit glamo_mci_exit(void)
+{
+	platform_driver_unregister(&glamo_mci_driver);
+}
+
+module_init(glamo_mci_init);
+module_exit(glamo_mci_exit);
+
+MODULE_DESCRIPTION("Glamo MMC/SD Card Interface driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Andy Green <andy@openmoko.com>");
diff --git a/drivers/mfd/glamo/glamo-mci.h b/drivers/mfd/glamo/glamo-mci.h
new file mode 100644
index 0000000..40c3e24
--- /dev/null
+++ b/drivers/mfd/glamo/glamo-mci.h
@@ -0,0 +1,76 @@
+/*
+ *  linux/drivers/mmc/host/glamo-mmc.h - GLAMO MCI driver
+ *
+ *  Copyright (C) 2007-2008 OpenMoko, Inc, Andy Green <andy@openmoko.com>
+ *   based on S3C MMC driver -->
+ *  Copyright (C) 2004-2006 Thomas Kleffel, All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+enum glamo_mci_waitfor {
+	COMPLETION_NONE,
+	COMPLETION_FINALIZE,
+	COMPLETION_CMDSENT,
+	COMPLETION_RSPFIN,
+	COMPLETION_XFERFINISH,
+	COMPLETION_XFERFINISH_RSPFIN,
+};
+
+struct glamo_mci_host {
+	struct platform_device	*pdev;
+	struct glamo_mci_pdata  *pdata;
+	struct mmc_host		*mmc;
+	struct resource		*mem;
+	struct resource		*mem_data;
+	struct clk		*clk;
+	void __iomem		*base;
+	u16 __iomem		*base_data;
+	int			irq;
+	int			irq_cd;
+	int			dma;
+	int 			data_max_size;
+
+	int			power_mode_current;
+	unsigned int		vdd_current;
+
+	unsigned long		clk_rate;
+	unsigned long		clk_div;
+	unsigned long		real_rate;
+	u8			prescaler;
+
+	unsigned		sdiimsk;
+	int			dodma;
+
+	volatile int		dmatogo;
+
+	struct mmc_request	*mrq;
+	int			cmd_is_stop;
+
+	spinlock_t		complete_lock;
+	volatile enum glamo_mci_waitfor
+				complete_what;
+
+	volatile int		dma_complete;
+
+	volatile u32		pio_sgptr;
+	volatile u32		pio_words;
+	volatile u32		pio_count;
+	volatile u16		*pio_ptr;
+#define XFER_NONE 0
+#define XFER_READ 1
+#define XFER_WRITE 2
+	volatile u32		pio_active;
+
+	int			bus_width;
+
+	char 			dbgmsg_cmd[301];
+	char 			dbgmsg_dat[301];
+	volatile char		*status;
+
+	unsigned int		ccnt, dcnt;
+	struct tasklet_struct	pio_tasklet;
+};
diff --git a/drivers/mfd/glamo/glamo-regs.h b/drivers/mfd/glamo/glamo-regs.h
index 151cd66..8f6c45c 100644
--- a/drivers/mfd/glamo/glamo-regs.h
+++ b/drivers/mfd/glamo/glamo-regs.h
@@ -150,16 +150,28 @@ enum glamo_reg_mem_dram2 {
 	GLAMO_MEM_DRAM2_DEEP_PWRDOWN	= (1 << 12),
 };
 
+enum glamo_irq_index {
+	GLAMO_IRQIDX_HOSTBUS	= 0,
+	GLAMO_IRQIDX_JPEG	= 1,
+	GLAMO_IRQIDX_MPEG	= 2,
+	GLAMO_IRQIDX_MPROC1	= 3,
+	GLAMO_IRQIDX_MPROC0	= 4,
+	GLAMO_IRQIDX_CMDQUEUE	= 5,
+	GLAMO_IRQIDX_2D		= 6,
+	GLAMO_IRQIDX_MMC	= 7,
+	GLAMO_IRQIDX_RISC	= 8,
+};
+
 enum glamo_irq {
-	GLAMO_IRQ_HOSTBUS	= 0x0001,
-	GLAMO_IRQ_JPEG		= 0x0002,
-	GLAMO_IRQ_MPEG		= 0x0004,
-	GLAMO_IRQ_MPROC1	= 0x0008,
-	GLAMO_IRQ_MPROC0	= 0x0010,
-	GLAMO_IRQ_CMDQUEUE	= 0x0020,
-	GLAMO_IRQ_2D		= 0x0040,
-	GLAMO_IRQ_MMC		= 0x0080,
-	GLAMO_IRQ_RISC		= 0x0100,
+	GLAMO_IRQ_HOSTBUS	= (1 << GLAMO_IRQIDX_HOSTBUS),
+	GLAMO_IRQ_JPEG		= (1 << GLAMO_IRQIDX_JPEG),
+	GLAMO_IRQ_MPEG		= (1 << GLAMO_IRQIDX_MPEG),
+	GLAMO_IRQ_MPROC1	= (1 << GLAMO_IRQIDX_MPROC1),
+	GLAMO_IRQ_MPROC0	= (1 << GLAMO_IRQIDX_MPROC0),
+	GLAMO_IRQ_CMDQUEUE	= (1 << GLAMO_IRQIDX_CMDQUEUE),
+	GLAMO_IRQ_2D		= (1 << GLAMO_IRQIDX_2D),
+	GLAMO_IRQ_MMC		= (1 << GLAMO_IRQIDX_MMC),
+	GLAMO_IRQ_RISC		= (1 << GLAMO_IRQIDX_RISC),
 };
 
 enum glamo_reg_clock_host {
@@ -197,6 +209,145 @@ enum glamo_reg_clock_mmc {
 	GLAMO_CLOCK_MMC_RESET		= 0x1000,
 };
 
+enum glamo_reg_basic_mmc {
+	/* set to disable CRC error rejection */
+	GLAMO_BASIC_MMC_DISABLE_CRC	= 0x0001,
+	/* enable completion interrupt */
+	GLAMO_BASIC_MMC_EN_COMPL_INT	= 0x0002,
+	/* stop MMC clock while enforced idle waiting for data from card */
+	GLAMO_BASIC_MMC_NO_CLK_RD_WAIT	= 0x0004,
+	/* 0 = 1-bit bus to card, 1 = use 4-bit bus (has to be negotiated) */
+	GLAMO_BASIC_MMC_EN_4BIT_DATA	= 0x0008,
+	/* enable 75K pullups on D3..D0 */
+	GLAMO_BASIC_MMC_EN_DATA_PUPS	= 0x0010,
+	/* enable 75K pullup on CMD */
+	GLAMO_BASIC_MMC_EN_CMD_PUP	= 0x0020,
+	/* IO drive strength 00=weak -> 11=strongest */
+	GLAMO_BASIC_MMC_EN_DR_STR0	= 0x0040,
+	GLAMO_BASIC_MMC_EN_DR_STR1	= 0x0080,
+	/* TCLK delay stage A, 0000 = 500ps --> 1111 = 8ns */
+	GLAMO_BASIC_MMC_EN_TCLK_DLYA0	= 0x0100,
+	GLAMO_BASIC_MMC_EN_TCLK_DLYA1	= 0x0200,
+	GLAMO_BASIC_MMC_EN_TCLK_DLYA2	= 0x0400,
+	GLAMO_BASIC_MMC_EN_TCLK_DLYA3	= 0x0800,
+	/* TCLK delay stage B (cumulative), 0000 = 500ps --> 1111 = 8ns */
+	GLAMO_BASIC_MMC_EN_TCLK_DLYB0	= 0x1000,
+	GLAMO_BASIC_MMC_EN_TCLK_DLYB1	= 0x2000,
+	GLAMO_BASIC_MMC_EN_TCLK_DLYB2	= 0x4000,
+	GLAMO_BASIC_MMC_EN_TCLK_DLYB3	= 0x8000,
+};
+
+enum glamo_reg_stat1_mmc {
+	/* command "counter" (really: toggle) */
+	GLAMO_STAT1_MMC_CMD_CTR	= 0x8000,
+	/* engine is idle */
+	GLAMO_STAT1_MMC_IDLE	= 0x4000,
+	/* readback response is ready */
+	GLAMO_STAT1_MMC_RB_RRDY	= 0x0200,
+	/* readback data is ready */
+	GLAMO_STAT1_MMC_RB_DRDY	= 0x0100,
+	/* no response timeout */
+	GLAMO_STAT1_MMC_RTOUT	= 0x0020,
+	/* no data timeout */
+	GLAMO_STAT1_MMC_DTOUT	= 0x0010,
+	/* CRC error on block write */
+	GLAMO_STAT1_MMC_BWERR	= 0x0004,
+	/* CRC error on block read */
+	GLAMO_STAT1_MMC_BRERR	= 0x0002
+};
+
+enum glamo_reg_fire_mmc {
+	/* command "counter" (really: toggle)
+	 * the STAT1 register reflects this so you can ensure you don't look
+	 * at status for previous command
+	 */
+	GLAMO_FIRE_MMC_CMD_CTR	= 0x8000,
+	/* sets kind of response expected */
+	GLAMO_FIRE_MMC_RES_MASK	= 0x0700,
+	/* sets command type */
+	GLAMO_FIRE_MMC_TYP_MASK	= 0x00C0,
+	/* sets command class */
+	GLAMO_FIRE_MMC_CLS_MASK	= 0x000F,
+};
+
+enum glamo_fire_mmc_response_types {
+	GLAMO_FIRE_MMC_RSPT_R1	= 0x0000,
+	GLAMO_FIRE_MMC_RSPT_R1b	= 0x0100,
+	GLAMO_FIRE_MMC_RSPT_R2	= 0x0200,
+	GLAMO_FIRE_MMC_RSPT_R3	= 0x0300,
+	GLAMO_FIRE_MMC_RSPT_R4	= 0x0400,
+	GLAMO_FIRE_MMC_RSPT_R5	= 0x0500,
+};
+
+enum glamo_fire_mmc_command_types {
+	/* broadcast, no response */
+	GLAMO_FIRE_MMC_CMDT_BNR	= 0x0000,
+	/* broadcast, with response */
+	GLAMO_FIRE_MMC_CMDT_BR	= 0x0040,
+	/* addressed, no data */
+	GLAMO_FIRE_MMC_CMDT_AND	= 0x0080,
+	/* addressed, with data */
+	GLAMO_FIRE_MMC_CMDT_AD	= 0x00C0,
+};
+
+enum glamo_fire_mmc_command_class {
+	/* "Stream Read" */
+	GLAMO_FIRE_MMC_CC_STRR	= 0x0000,
+	/* Single Block Read */
+	GLAMO_FIRE_MMC_CC_SBR	= 0x0001,
+	/* Multiple Block Read With Stop */
+	GLAMO_FIRE_MMC_CC_MBRS	= 0x0002,
+	/* Multiple Block Read No Stop */
+	GLAMO_FIRE_MMC_CC_MBRNS	= 0x0003,
+	/* RESERVED for "Stream Write" */
+	GLAMO_FIRE_MMC_CC_STRW	= 0x0004,
+	/* "Stream Write" */
+	GLAMO_FIRE_MMC_CC_SBW	= 0x0005,
+	/* RESERVED for Multiple Block Write With Stop */
+	GLAMO_FIRE_MMC_CC_MBWS	= 0x0006,
+	/* Multiple Block Write No Stop */
+	GLAMO_FIRE_MMC_CC_MBWNS	= 0x0007,
+	/* STOP command */
+	GLAMO_FIRE_MMC_CC_STOP	= 0x0008,
+	/* Cancel on Running Command */
+	GLAMO_FIRE_MMC_CC_CANCL	= 0x0009,
+	/* "Basic Command" */
+	GLAMO_FIRE_MMC_CC_BASIC	= 0x000a,
+};
+
+/* these are offsets from the start of the MMC register region */
+enum glamo_register_mmc {
+	/* MMC command, b15..8 = cmd arg b7..0; b7..1 = CRC; b0 = end bit */
+	GLAMO_REG_MMC_CMD_REG1	= 0x00,
+	/* MMC command, b15..0 = cmd arg b23 .. 8 */
+	GLAMO_REG_MMC_CMD_REG2	= 0x02,
+	/* MMC command, b15=start, b14=transmission,
+	 * b13..8=cmd idx, b7..0=cmd arg b31..24
+	 */
+	GLAMO_REG_MMC_CMD_REG3	= 0x04,
+	GLAMO_REG_MMC_CMD_FIRE	= 0x06,
+	GLAMO_REG_MMC_CMD_RSP1	= 0x10,
+	GLAMO_REG_MMC_CMD_RSP2	= 0x12,
+	GLAMO_REG_MMC_CMD_RSP3	= 0x14,
+	GLAMO_REG_MMC_CMD_RSP4	= 0x16,
+	GLAMO_REG_MMC_CMD_RSP5	= 0x18,
+	GLAMO_REG_MMC_CMD_RSP6	= 0x1a,
+	GLAMO_REG_MMC_CMD_RSP7	= 0x1c,
+	GLAMO_REG_MMC_CMD_RSP8	= 0x1e,
+	GLAMO_REG_MMC_RB_STAT1	= 0x20,
+	GLAMO_REG_MMC_RB_BLKCNT	= 0x22,
+	GLAMO_REG_MMC_RB_BLKLEN	= 0x24,
+	GLAMO_REG_MMC_BASIC	= 0x30,
+	GLAMO_REG_MMC_RDATADS1	= 0x34,
+	GLAMO_REG_MMC_RDATADS2	= 0x36,
+	GLAMO_REG_MMC_WDATADS1	= 0x38,
+	GLAMO_REG_MMC_WDATADS2	= 0x3a,
+	GLAMO_REG_MMC_DATBLKCNT	= 0x3c,
+	GLAMO_REG_MMC_DATBLKLEN	= 0x3e,
+	GLAMO_REG_MMC_TIMEOUT	= 0x40,
+
+};
+
 enum glamo_reg_clock_isp {
 	GLAMO_CLOCK_ISP_DG_I1CLK	= 0x0001,
 	GLAMO_CLOCK_ISP_EN_I1CLK	= 0x0002,
-- 
1.5.6.3