s3c2442: R.I.P.

It is broken and it is not maintained by anyone since long time.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34767 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 987 deletions

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
deleted file mode 100644
index b728c8745d..0000000000
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-mci.c
+++ /dev/null
@@ -1,987 +0,0 @@
-/*
- *  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/mmc/mmc.h>
-#include <linux/mmc/sd.h>
-#include <linux/mmc/host.h>
-#include <linux/platform_device.h>
-#include <linux/irq.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/workqueue.h>
-#include <linux/crc7.h>
-#include <linux/scatterlist.h>
-#include <linux/io.h>
-#include <linux/regulator/consumer.h>
-#include <linux/mfd/glamo.h>
-
-#include "glamo-core.h"
-#include "glamo-regs.h"
-
-#define DRIVER_NAME "glamo-mci"
-
-struct glamo_mci_host {
-	struct glamo_mmc_platform_data *pdata;
-	struct platform_device *pdev;
-	struct glamo_core      *core;
-	struct mmc_host        *mmc;
-	struct resource        *mmio_mem;
-	struct resource        *data_mem;
-	void __iomem           *mmio_base;
-	u16 __iomem            *data_base;
-
-	struct regulator *regulator;
-	struct mmc_request *mrq;
-
-	unsigned int clk_rate;
-
-	unsigned short vdd;
-	char           power_mode;
-
-	unsigned char request_counter;
-
-	struct timer_list disable_timer;
-
-	struct work_struct irq_work;
-	struct work_struct read_work;
-
-	unsigned clk_enabled : 1;
-
-};
-
-static void glamo_mci_send_request(struct mmc_host *mmc, struct mmc_request* mrq);
-static void glamo_mci_send_command(struct glamo_mci_host *host,
-				  struct mmc_command *cmd);
-
-/*
- * Max SD clock rate
- *
- * held at /(3 + 1) due to concerns of 100R recommended series resistor
- * allows 16MHz @ 4-bit --> 8MBytes/sec raw
- *
- * you can override this on kernel commandline using
- *
- *   glamo_mci.sd_max_clk=10000000
- *
- * for example
- */
-
-static int sd_max_clk = 21000000;
-module_param(sd_max_clk, int, 0644);
-
-/*
- * Slow SD clock rate
- *
- * you can override this on kernel commandline using
- *
- *   glamo_mci.sd_slow_ratio=8
- *
- * for example
- *
- * platform callback is used to decide effective clock rate, if not
- * defined then max is used, if defined and returns nonzero, rate is
- * divided by this factor
- */
-
-static int sd_slow_ratio = 8;
-module_param(sd_slow_ratio, int, 0644);
-
-/*
- * Post-power SD clock rate
- *
- * you can override this on kernel commandline using
- *
- *   glamo_mci.sd_post_power_clock=1000000
- *
- * for example
- *
- * After changing power to card, clock is held at this rate until first bulk
- * transfer completes
- */
-
-static int sd_post_power_clock = 1000000;
-module_param(sd_post_power_clock, int, 0644);
-
-
-static inline void glamo_reg_write(struct glamo_mci_host *glamo,
-				u_int16_t reg, u_int16_t val)
-{
-	writew(val, glamo->mmio_base + reg);
-}
-
-static inline u_int16_t glamo_reg_read(struct glamo_mci_host *glamo,
-				   u_int16_t reg)
-{
-	return readw(glamo->mmio_base + reg);
-}
-
-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;
-
-	val &= mask;
-
-	tmp = glamo_reg_read(glamo, reg);
-	tmp &= ~mask;
-	tmp |= val;
-	glamo_reg_write(glamo, reg, tmp);
-}
-
-static void glamo_mci_clock_disable(struct glamo_mci_host *host) {
-	if (host->clk_enabled) {
-		glamo_engine_div_disable(host->core, GLAMO_ENGINE_MMC);
-		host->clk_enabled = 0;
-	}
-}
-
-static void glamo_mci_clock_enable(struct glamo_mci_host *host) {
-	del_timer_sync(&host->disable_timer);
-
-	if (!host->clk_enabled) {
-		glamo_engine_div_enable(host->core, GLAMO_ENGINE_MMC);
-		host->clk_enabled = 1;
-	}
-}
-
-static void glamo_mci_disable_timer(unsigned long data) {
-	struct glamo_mci_host *host = (struct glamo_mci_host *)data;
-	glamo_mci_clock_disable(host);
-}
-
-
-static void do_pio_read(struct glamo_mci_host *host, struct mmc_data *data)
-{
-	struct scatterlist *sg;
-	u16 __iomem *from_ptr = host->data_base;
-	void *sg_pointer;
-
-	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 void do_pio_write(struct glamo_mci_host *host, struct mmc_data *data)
-{
-	struct scatterlist *sg;
-	u16 __iomem *to_ptr = host->data_base;
-	void *sg_pointer;
-
-	dev_dbg(&host->pdev->dev, "pio_write():\n");
-	for (sg = data->sg; sg; sg = sg_next(sg)) {
-		sg_pointer = page_address(sg_page(sg)) + sg->offset;
-
-		data->bytes_xfered += sg->length;
-
-		memcpy(to_ptr, sg_pointer, sg->length);
-		to_ptr += sg->length >> 1;
-	}
-
-	dev_dbg(&host->pdev->dev, "pio_write(): complete\n");
-}
-
-static int glamo_mci_set_card_clock(struct glamo_mci_host *host, int freq)
-{
-	int real_rate = 0;
-
-	if (freq) {
-		glamo_mci_clock_enable(host);
-		real_rate = glamo_engine_reclock(host->core, GLAMO_ENGINE_MMC, freq);
-	} else {
-		glamo_mci_clock_disable(host);
-	}
-
-	return real_rate;
-}
-
-static void glamo_mci_request_done(struct glamo_mci_host *host, struct
-mmc_request *mrq) {
-	mod_timer(&host->disable_timer, jiffies + HZ / 16);
-	mmc_request_done(host->mmc, mrq);
-}
-
-
-static void glamo_mci_irq_worker(struct work_struct *work)
-{
-	struct glamo_mci_host *host = container_of(work, struct glamo_mci_host,
-												irq_work);
-	struct mmc_command *cmd;
-	uint16_t status;
-	if (!host->mrq || !host->mrq->cmd)
-		return;
-
-	cmd = host->mrq->cmd;
-
-#if 0
-	if (cmd->data->flags & MMC_DATA_READ) {
-		return;
-	}
-#endif
-
-	status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
-	dev_dbg(&host->pdev->dev, "status = 0x%04x\n", status);
-
-	/* 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;
-
-	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_info(&host->pdev->dev, "Error after cmd: 0x%x\n", status);
-		goto done;
-	}
-
-	/* issue STOP if we have been given one to use */
-	if (host->mrq->stop) {
-		glamo_mci_send_command(host, host->mrq->stop);
-	}
-
-	if (cmd->data->flags & MMC_DATA_READ)
-		do_pio_read(host, cmd->data);
-
-done:
-	host->mrq = NULL;
-	glamo_mci_request_done(host, cmd->mrq);
-}
-
-static void glamo_mci_read_worker(struct work_struct *work)
-{
-	struct glamo_mci_host *host = container_of(work, struct glamo_mci_host,
-												read_work);
-	struct mmc_command *cmd;
-	uint16_t status;
-	uint16_t blocks_ready;
-	size_t data_read = 0;
-	size_t data_ready;
-	struct scatterlist *sg;
-	u16 __iomem *from_ptr = host->data_base;
-	void *sg_pointer;
-
-
-	cmd = host->mrq->cmd;
-	sg = cmd->data->sg;
-	do {
-		status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
-
-		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_info(&host->pdev->dev, "Error after cmd: 0x%x\n", status);
-			goto done;
-		}
-
-		blocks_ready = glamo_reg_read(host, GLAMO_REG_MMC_RB_BLKCNT);
-		data_ready = blocks_ready * cmd->data->blksz;
-
-		if (data_ready == data_read)
-			yield();
-
-		while(sg && data_read + sg->length <= data_ready) {
-			sg_pointer = page_address(sg_page(sg)) + sg->offset;
-			memcpy(sg_pointer, from_ptr, sg->length);
-			from_ptr += sg->length >> 1;
-
-			data_read += sg->length;
-			sg = sg_next(sg);
-		}
-
-	} while(sg);
-	cmd->data->bytes_xfered = data_read;
-
-	do {
-		status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
-	} while (!(status & GLAMO_STAT1_MMC_IDLE));
-
-	if (host->mrq->stop)
-		glamo_mci_send_command(host, host->mrq->stop);
-
-	do {
-		status = glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1);
-	} while (!(status & GLAMO_STAT1_MMC_IDLE));
-done:
-	host->mrq = NULL;
-	glamo_mci_request_done(host, cmd->mrq);
-}
-
-static irqreturn_t glamo_mci_irq(int irq, void *devid)
-{
-	struct glamo_mci_host *host = (struct glamo_mci_host*)devid;
-	schedule_work(&host->irq_work);
-
-	return IRQ_HANDLED;
-}
-
-static void glamo_mci_send_command(struct glamo_mci_host *host,
-				  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;
-	int triggers_int = 1;
-
-	/* if we can't do it, reject as busy */
-	if (!glamo_reg_read(host, GLAMO_REG_MMC_RB_STAT1) &
-		 GLAMO_STAT1_MMC_IDLE) {
-		cmd->error = -EBUSY;
-		return;
-	}
-
-	/* 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(0, u8a, 5) << 1) | 0x01; /* crc7 on first 5 bytes of packet */
-
-	/* issue the wire-order array including CRC in register order */
-	glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG1, ((u8a[4] << 8) | u8a[5]));
-	glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG2, ((u8a[2] << 8) | u8a[3]));
-	glamo_reg_write(host, GLAMO_REG_MMC_CMD_REG3, ((u8a[0] << 8) | u8a[1]));
-
-	/* command index toggle */
-	fire |= (host->request_counter & 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_R1: /* same index as R6 and R7 */
-		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 SD_APP_SEND_SCR:
-	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 */
-		triggers_int = 0;
-		break;
-	default:
-		fire |= GLAMO_FIRE_MMC_CC_BASIC; /* "basic command" */
-		triggers_int = 0;
-		break;
-	}
-
-	if (cmd->data)
-		host->mrq = cmd->mrq;
-
-	/* always largest timeout */
-	glamo_reg_write(host, GLAMO_REG_MMC_TIMEOUT, 0xfff);
-
-	/* Generate interrupt on txfer */
-	glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC, 0xff36,
-			0x0800 |
-			GLAMO_BASIC_MMC_NO_CLK_RD_WAIT |
-			GLAMO_BASIC_MMC_EN_COMPL_INT |
-			GLAMO_BASIC_MMC_EN_DATA_PUPS |
-			GLAMO_BASIC_MMC_EN_CMD_PUP);
-
-	/* send the command out on the wire */
-	/* dev_info(&host->pdev->dev, "Using FIRE %04X\n", fire); */
-	glamo_reg_write(host, GLAMO_REG_MMC_CMD_FIRE, fire);
-
-	/* we are deselecting card?  because it isn't going to ack then... */
-	if ((cmd->opcode == 7) && (cmd->arg == 0))
-		return;
-
-	/*
-	 * we must spin until response is ready or timed out
-	 * -- we don't get interrupts unless there is a bulk rx
-	 */
-	do
-		status = glamo_reg_read(host, 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);
-		}
-	}
-
-#if 0
-	/* We'll only get an interrupt when all data has been transfered.
-	   By starting to copy data when it's avaiable we can increase throughput by
-	   up to 30%. */
-	if (cmd->data && (cmd->data->flags & MMC_DATA_READ))
-		schedule_work(&host->read_work);
-#endif
-
-}
-
-static int glamo_mci_prepare_pio(struct glamo_mci_host *host,
-				 struct mmc_data *data)
-{
-	/* set up the block info */
-	glamo_reg_write(host, GLAMO_REG_MMC_DATBLKLEN, data->blksz);
-	glamo_reg_write(host, GLAMO_REG_MMC_DATBLKCNT, data->blocks);
-
-	data->bytes_xfered = 0;
-
-	/* if write, prep the write into the shared RAM before the command */
-	if (data->flags & MMC_DATA_WRITE) {
-		do_pio_write(host, data);
-	}
-
-	dev_dbg(&host->pdev->dev, "(blksz=%d, count=%d)\n",
-				   data->blksz, data->blocks);
-	return 0;
-}
-
-static int glamo_mci_irq_poll(struct glamo_mci_host *host,
-				struct mmc_command *cmd)
-{
-	int timeout = 1000000;
-	/*
-	 * 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"
-	 */
-	/*
-	 * 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(host->core->base +
-		 GLAMO_REG_IRQ_STATUS) & GLAMO_IRQ_MMC)) &&
-		   (timeout--));
-
-	if (timeout < 0) {
-		if (cmd->data->error)
-			cmd->data->error = -ETIMEDOUT;
-		dev_err(&host->pdev->dev, "Payload timeout\n");
-		return -ETIMEDOUT;
-	}
-	/* ack this interrupt source */
-	writew(GLAMO_IRQ_MMC, host->core->base +
-		   GLAMO_REG_IRQ_CLEAR);
-
-	/* yay we are an interrupt controller! -- call the ISR
-	 * it will stop clock to card
-	 */
-	glamo_mci_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
-
-	return 0;
-}
-
-static void glamo_mci_send_request(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct glamo_mci_host *host = mmc_priv(mmc);
-	struct mmc_command *cmd = mrq->cmd;
-
-	glamo_mci_clock_enable(host);
-	host->request_counter++;
-	if (cmd->data) {
-		if(glamo_mci_prepare_pio(host, cmd->data)) {
-			cmd->error = -EIO;
-			cmd->data->error = -EIO;
-			goto done;
-		}
-	}
-
-	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);
-
-	glamo_mci_send_command(host, cmd);
-
-	/*
-	 * if we don't have bulk data to take care of, we're done
-	 */
-	if (!cmd->data || cmd->error)
-		goto done;
-
-
-	if (!host->core->irq_works) {
-		if (glamo_mci_irq_poll(host, mrq->cmd))
-			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");
-	return;
-done:
-	glamo_mci_request_done(host, mrq);
-}
-
-static void glamo_mci_set_power_mode(struct glamo_mci_host *host,
-				unsigned char power_mode) {
-	int ret;
-
-	if (power_mode == host->power_mode)
-		return;
-
-	switch(power_mode) {
-	case MMC_POWER_UP:
-		if (host->power_mode == MMC_POWER_OFF) {
-			ret = regulator_enable(host->regulator);
-			if (ret)
-				dev_err(&host->pdev->dev, "Failed to enable regulator: %d\n", ret);
-		}
-		break;
-	case MMC_POWER_ON:
-		break;
-	case MMC_POWER_OFF:
-	default:
-		glamo_engine_disable(host->core,
-				     GLAMO_ENGINE_MMC);
-
-		ret = regulator_disable(host->regulator);
-		if (ret)
-			dev_warn(&host->pdev->dev, "Failed to disable regulator: %d\n", ret);
-		break;
-	}
-	host->power_mode = power_mode;
-}
-
-static void glamo_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
-{
-	struct glamo_mci_host *host = mmc_priv(mmc);
-	int bus_width = 0;
-	int rate;
-	int sd_drive;
-	int ret;
-
-	/* Set power */
-	glamo_mci_set_power_mode(host, ios->power_mode);
-
-	if (host->vdd != ios->vdd) {
-		ret = mmc_regulator_set_ocr(host->regulator, ios->vdd);
-		if (ret)
-			dev_err(&host->pdev->dev, "Failed to set regulator voltage: %d\n", ret);
-		else
-			host->vdd = ios->vdd;
-	}
-	rate = glamo_mci_set_card_clock(host, ios->clock);
-
-	if ((ios->power_mode == MMC_POWER_ON) ||
-	    (ios->power_mode == MMC_POWER_UP)) {
-		dev_info(&host->pdev->dev,
-			"powered (vdd = %hu) clk: %dkHz div=%hu (req: %ukHz). "
-			"Bus width=%d\n", ios->vdd,
-			rate / 1000, 0,
-			ios->clock / 1000, (int)ios->bus_width);
-	} else {
-		dev_info(&host->pdev->dev, "glamo_mci_set_ios: power down.\n");
-	}
-
-	/* set bus width */
-	if (ios->bus_width == MMC_BUS_WIDTH_4)
-		bus_width = GLAMO_BASIC_MMC_EN_4BIT_DATA;
-
-	sd_drive = (rate * 4) / host->clk_rate;
-	if (sd_drive > 3)
-		sd_drive = 3;
-
-	glamo_reg_set_bit_mask(host, GLAMO_REG_MMC_BASIC,
-					       GLAMO_BASIC_MMC_EN_4BIT_DATA | 0xb0,
-						   bus_width | sd_drive << 6);
-}
-
-
-/*
- * 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_send_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;
-	struct glamo_core *core = dev_get_drvdata(pdev->dev.parent);
-	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;
-	if (core->pdata)
-		host->pdata = core->pdata->mmc_data;
-	host->power_mode = MMC_POWER_OFF;
-	host->clk_enabled = 0;
-	host->core = core;
-
-	INIT_WORK(&host->irq_work, glamo_mci_irq_worker);
-	INIT_WORK(&host->read_work, glamo_mci_read_worker);
-
-	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");
-		ret = -ENOENT;
-		goto probe_regulator_put;
-	}
-
-	host->mmio_mem = request_mem_region(host->mmio_mem->start,
-	                                    resource_size(host->mmio_mem),
-	                                    pdev->name);
-
-	if (!host->mmio_mem) {
-		dev_err(&pdev->dev, "failed to request io memory region.\n");
-		ret = -ENOENT;
-		goto probe_regulator_put;
-	}
-
-	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;
-		goto probe_free_mem_region_mmio;
-	}
-
-
-	/* Get ahold of our data buffer we use for data in and out on MMC */
-	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;
-		goto probe_iounmap_mmio;
-	}
-
-	host->data_mem = request_mem_region(host->data_mem->start,
-	                                    resource_size(host->data_mem),
-										pdev->name);
-
-	if (!host->data_mem) {
-		dev_err(&pdev->dev, "failed to request io memory region.\n");
-		ret = -ENOENT;
-		goto probe_iounmap_mmio;
-	}
-	host->data_base = ioremap(host->data_mem->start,
-	                          resource_size(host->data_mem));
-
-	if (host->data_base == 0) {
-		dev_err(&pdev->dev, "failed to ioremap() io memory region.\n");
-		ret = -EINVAL;
-		goto probe_free_mem_region_data;
-	}
-
-	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 = 0;
-	host->clk_rate = glamo_pll_rate(host->core, GLAMO_PLL1);
-
-	/* explain our host controller capabilities */
-	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;
-
-	if (mmc->ocr_avail < 0) {
-		dev_warn(&pdev->dev, "Failed to get ocr list for regulator: %d.\n",
-				mmc->ocr_avail);
-		mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
-	}
-
-	platform_set_drvdata(pdev, mmc);
-
-	glamo_engine_enable(host->core, GLAMO_ENGINE_MMC);
-	glamo_engine_reset(host->core, GLAMO_ENGINE_MMC);
-
-	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS1,
-			(u16)(host->data_mem->start));
-	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS2,
-			(u16)(host->data_mem->start >> 16));
-
-	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS1,
-			(u16)(host->data_mem->start));
-	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS2,
-			(u16)(host->data_mem->start >> 16));
-
-	setup_timer(&host->disable_timer, glamo_mci_disable_timer,
-				(unsigned long)host);
-
-	if ((ret = mmc_add_host(mmc))) {
-		dev_err(&pdev->dev, "failed to add mmc host.\n");
-		goto probe_freeirq;
-	}
-
-	dev_info(&pdev->dev,"initialisation done.\n");
-	return 0;
-
-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);
-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);
-
-	free_irq(IRQ_GLAMO(GLAMO_IRQIDX_MMC), host);
-
-	mmc_remove_host(mmc);
-	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);
-
-	glamo_engine_disable(host->core, GLAMO_ENGINE_MMC);
-	return 0;
-}
-
-
-#ifdef CONFIG_PM
-
-static int glamo_mci_suspend(struct device *dev)
-{
-	struct mmc_host *mmc = dev_get_drvdata(dev);
-	struct glamo_mci_host *host = mmc_priv(mmc);
-	int ret;
-
-	cancel_work_sync(&host->irq_work);
-
-	ret = mmc_suspend_host(mmc, PMSG_SUSPEND);
-	glamo_mci_clock_enable(host);
-
-	return ret;
-}
-
-static int glamo_mci_resume(struct device *dev)
-{
-	struct mmc_host *mmc = dev_get_drvdata(dev);
-	struct glamo_mci_host *host = mmc_priv(mmc);
-	int ret;
-
-	glamo_engine_enable(host->core, GLAMO_ENGINE_MMC);
-	glamo_engine_reset(host->core, GLAMO_ENGINE_MMC);
-
-	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS1,
-			(u16)(host->data_mem->start));
-	glamo_reg_write(host, GLAMO_REG_MMC_WDATADS2,
-			(u16)(host->data_mem->start >> 16));
-
-	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS1,
-			(u16)(host->data_mem->start));
-	glamo_reg_write(host, GLAMO_REG_MMC_RDATADS2,
-			(u16)(host->data_mem->start >> 16));
-	mdelay(5);
-
-	ret = mmc_resume_host(host->mmc);
-/*	glamo_mci_clock_disable(host);*/
-
-	return 0;
-}
-
-static struct dev_pm_ops glamo_mci_pm_ops = {
-	.suspend = glamo_mci_suspend,
-	.resume  = glamo_mci_resume,
-};
-#define GLAMO_MCI_PM_OPS (&glamo_mci_pm_ops)
-
-#else /* CONFIG_PM */
-#define GLAMO_MCI_PM_OPS NULL
-#endif /* CONFIG_PM */
-
-
-static struct platform_driver glamo_mci_driver =
-{
-	.probe  = glamo_mci_probe,
-	.remove = glamo_mci_remove,
-	.driver = {
-		.name  = "glamo-mci",
-		.owner = THIS_MODULE,
-		.pm    = GLAMO_MCI_PM_OPS,
-	},
-};
-
-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>");