mmc: host: delete obsolete sdhci-pxa.c

Delete obsolete sdhci-pxa.c, which was previously shared amongst the
entire PXA series.  Instead we now use sdhci-pxav3.c for mmp2 and
sdhci-pxav2.c for pxa9xx.
Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Acked-by: Mark F. Brown <mark.brown314@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

drivers/mmc/host/Kconfig

@@ -181,18 +181,6 @@ config MMC_SDHCI_S3C
 
 	  If unsure, say N.
 
-config MMC_SDHCI_PXA
-	tristate "Marvell PXA168/PXA910/MMP2 SD Host Controller support"
-	depends on ARCH_PXA || ARCH_MMP
-	select MMC_SDHCI
-	select MMC_SDHCI_IO_ACCESSORS
-	help
-	  This selects the Marvell(R) PXA168/PXA910/MMP2 SD Host Controller.
-	  If you have a PXA168/PXA910/MMP2 platform with SD Host Controller
-	  and a card slot, say Y or M here.
-
-	  If unsure, say N.
-
 config MMC_SDHCI_PXAV3
 	tristate "Marvell MMP2 SD Host Controller support (PXAV3)"
 	depends on CLKDEV_LOOKUP

drivers/mmc/host/Makefile

@@ -9,7 +9,6 @@ obj-$(CONFIG_MMC_MXC)		+= mxcmmc.o
 obj-$(CONFIG_MMC_MXS)		+= mxs-mmc.o
 obj-$(CONFIG_MMC_SDHCI)		+= sdhci.o
 obj-$(CONFIG_MMC_SDHCI_PCI)	+= sdhci-pci.o
-obj-$(CONFIG_MMC_SDHCI_PXA)	+= sdhci-pxa.o
 obj-$(CONFIG_MMC_SDHCI_PXAV3)	+= sdhci-pxav3.o
 obj-$(CONFIG_MMC_SDHCI_PXAV2)	+= sdhci-pxav2.o
 obj-$(CONFIG_MMC_SDHCI_S3C)	+= sdhci-s3c.o

drivers/mmc/host/sdhci-pxa.c

-/* linux/drivers/mmc/host/sdhci-pxa.c
- *
- * Copyright (C) 2010 Marvell International Ltd.
- *		Zhangfei Gao <zhangfei.gao@marvell.com>
- *		Kevin Wang <dwang4@marvell.com>
- *		Mingwei Wang <mwwang@marvell.com>
- *		Philip Rakity <prakity@marvell.com>
- *		Mark Brown <markb@marvell.com>
- *
- * 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.
- */
-
-/* Supports:
- * SDHCI support for MMP2/PXA910/PXA168
- *
- * Refer to sdhci-s3c.c.
- */
-
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/mmc/host.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/err.h>
-#include <plat/sdhci.h>
-#include "sdhci.h"
-
-#define DRIVER_NAME	"sdhci-pxa"
-
-#define SD_FIFO_PARAM		0x104
-#define DIS_PAD_SD_CLK_GATE	0x400
-
-struct sdhci_pxa {
-	struct sdhci_host		*host;
-	struct sdhci_pxa_platdata	*pdata;
-	struct clk			*clk;
-	struct resource			*res;
-
-	u8 clk_enable;
-};
-
-/*****************************************************************************\
- *                                                                           *
- * SDHCI core callbacks                                                      *
- *                                                                           *
-\*****************************************************************************/
-static void set_clock(struct sdhci_host *host, unsigned int clock)
-{
-	struct sdhci_pxa *pxa = sdhci_priv(host);
-	u32 tmp = 0;
-
-	if (clock == 0) {
-		if (pxa->clk_enable) {
-			clk_disable(pxa->clk);
-			pxa->clk_enable = 0;
-		}
-	} else {
-		if (0 == pxa->clk_enable) {
-			if (pxa->pdata->flags & PXA_FLAG_DISABLE_CLOCK_GATING) {
-				tmp = readl(host->ioaddr + SD_FIFO_PARAM);
-				tmp |= DIS_PAD_SD_CLK_GATE;
-				writel(tmp, host->ioaddr + SD_FIFO_PARAM);
-			}
-			clk_enable(pxa->clk);
-			pxa->clk_enable = 1;
-		}
-	}
-}
-
-static int set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
-{
-	u16 ctrl_2;
-
-	/*
-	 * Set V18_EN -- UHS modes do not work without this.
-	 * does not change signaling voltage
-	 */
-	ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
-
-	/* Select Bus Speed Mode for host */
-	ctrl_2 &= ~SDHCI_CTRL_UHS_MASK;
-	switch (uhs) {
-	case MMC_TIMING_UHS_SDR12:
-		ctrl_2 |= SDHCI_CTRL_UHS_SDR12;
-		break;
-	case MMC_TIMING_UHS_SDR25:
-		ctrl_2 |= SDHCI_CTRL_UHS_SDR25;
-		break;
-	case MMC_TIMING_UHS_SDR50:
-		ctrl_2 |= SDHCI_CTRL_UHS_SDR50 | SDHCI_CTRL_VDD_180;
-		break;
-	case MMC_TIMING_UHS_SDR104:
-		ctrl_2 |= SDHCI_CTRL_UHS_SDR104 | SDHCI_CTRL_VDD_180;
-		break;
-	case MMC_TIMING_UHS_DDR50:
-		ctrl_2 |= SDHCI_CTRL_UHS_DDR50 | SDHCI_CTRL_VDD_180;
-		break;
-	}
-
-	sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
-	pr_debug("%s:%s uhs = %d, ctrl_2 = %04X\n",
-		__func__, mmc_hostname(host->mmc), uhs, ctrl_2);
-
-	return 0;
-}
-
-static struct sdhci_ops sdhci_pxa_ops = {
-	.set_uhs_signaling = set_uhs_signaling,
-	.set_clock = set_clock,
-};
-
-/*****************************************************************************\
- *                                                                           *
- * Device probing/removal                                                    *
- *                                                                           *
-\*****************************************************************************/
-
-static int __devinit sdhci_pxa_probe(struct platform_device *pdev)
-{
-	struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data;
-	struct device *dev = &pdev->dev;
-	struct sdhci_host *host = NULL;
-	struct resource *iomem = NULL;
-	struct sdhci_pxa *pxa = NULL;
-	int ret, irq;
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		dev_err(dev, "no irq specified\n");
-		return irq;
-	}
-
-	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!iomem) {
-		dev_err(dev, "no memory specified\n");
-		return -ENOENT;
-	}
-
-	host = sdhci_alloc_host(&pdev->dev, sizeof(struct sdhci_pxa));
-	if (IS_ERR(host)) {
-		dev_err(dev, "failed to alloc host\n");
-		return PTR_ERR(host);
-	}
-
-	pxa = sdhci_priv(host);
-	pxa->host = host;
-	pxa->pdata = pdata;
-	pxa->clk_enable = 0;
-
-	pxa->clk = clk_get(dev, "PXA-SDHCLK");
-	if (IS_ERR(pxa->clk)) {
-		dev_err(dev, "failed to get io clock\n");
-		ret = PTR_ERR(pxa->clk);
-		goto out;
-	}
-
-	pxa->res = request_mem_region(iomem->start, resource_size(iomem),
-				      mmc_hostname(host->mmc));
-	if (!pxa->res) {
-		dev_err(&pdev->dev, "cannot request region\n");
-		ret = -EBUSY;
-		goto out;
-	}
-
-	host->ioaddr = ioremap(iomem->start, resource_size(iomem));
-	if (!host->ioaddr) {
-		dev_err(&pdev->dev, "failed to remap registers\n");
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	host->hw_name = "MMC";
-	host->ops = &sdhci_pxa_ops;
-	host->irq = irq;
-	host->quirks = SDHCI_QUIRK_BROKEN_ADMA
-		| SDHCI_QUIRK_BROKEN_TIMEOUT_VAL
-		| SDHCI_QUIRK_32BIT_DMA_ADDR
-		| SDHCI_QUIRK_32BIT_DMA_SIZE
-		| SDHCI_QUIRK_32BIT_ADMA_SIZE
-		| SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC;
-
-	if (pdata->quirks)
-		host->quirks |= pdata->quirks;
-
-	/* enable 1/8V DDR capable */
-	host->mmc->caps |= MMC_CAP_1_8V_DDR;
-
-	/* If slot design supports 8 bit data, indicate this to MMC. */
-	if (pdata->flags & PXA_FLAG_SD_8_BIT_CAPABLE_SLOT)
-		host->mmc->caps |= MMC_CAP_8_BIT_DATA;
-
-	ret = sdhci_add_host(host);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add host\n");
-		goto out;
-	}
-
-	if (pxa->pdata->max_speed)
-		host->mmc->f_max = pxa->pdata->max_speed;
-
-	platform_set_drvdata(pdev, host);
-
-	return 0;
-out:
-	if (host) {
-		clk_put(pxa->clk);
-		if (host->ioaddr)
-			iounmap(host->ioaddr);
-		if (pxa->res)
-			release_mem_region(pxa->res->start,
-					   resource_size(pxa->res));
-		sdhci_free_host(host);
-	}
-
-	return ret;
-}
-
-static int __devexit sdhci_pxa_remove(struct platform_device *pdev)
-{
-	struct sdhci_host *host = platform_get_drvdata(pdev);
-	struct sdhci_pxa *pxa = sdhci_priv(host);
-	int dead = 0;
-	u32 scratch;
-
-	if (host) {
-		scratch = readl(host->ioaddr + SDHCI_INT_STATUS);
-		if (scratch == (u32)-1)
-			dead = 1;
-
-		sdhci_remove_host(host, dead);
-
-		if (host->ioaddr)
-			iounmap(host->ioaddr);
-		if (pxa->res)
-			release_mem_region(pxa->res->start,
-					   resource_size(pxa->res));
-		if (pxa->clk_enable) {
-			clk_disable(pxa->clk);
-			pxa->clk_enable = 0;
-		}
-		clk_put(pxa->clk);
-
-		sdhci_free_host(host);
-		platform_set_drvdata(pdev, NULL);
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int sdhci_pxa_suspend(struct platform_device *dev, pm_message_t state)
-{
-	struct sdhci_host *host = platform_get_drvdata(dev);
-
-	return sdhci_suspend_host(host, state);
-}
-
-static int sdhci_pxa_resume(struct platform_device *dev)
-{
-	struct sdhci_host *host = platform_get_drvdata(dev);
-
-	return sdhci_resume_host(host);
-}
-#else
-#define sdhci_pxa_suspend	NULL
-#define sdhci_pxa_resume	NULL
-#endif
-
-static struct platform_driver sdhci_pxa_driver = {
-	.probe		= sdhci_pxa_probe,
-	.remove		= __devexit_p(sdhci_pxa_remove),
-	.suspend	= sdhci_pxa_suspend,
-	.resume		= sdhci_pxa_resume,
-	.driver		= {
-		.name	= DRIVER_NAME,
-		.owner	= THIS_MODULE,
-	},
-};
-
-/*****************************************************************************\
- *                                                                           *
- * Driver init/exit                                                          *
- *                                                                           *
-\*****************************************************************************/
-
-static int __init sdhci_pxa_init(void)
-{
-	return platform_driver_register(&sdhci_pxa_driver);
-}
-
-static void __exit sdhci_pxa_exit(void)
-{
-	platform_driver_unregister(&sdhci_pxa_driver);
-}
-
-module_init(sdhci_pxa_init);
-module_exit(sdhci_pxa_exit);
-
-MODULE_DESCRIPTION("SDH controller driver for PXA168/PXA910/MMP2");
-MODULE_AUTHOR("Zhangfei Gao <zhangfei.gao@marvell.com>");
-MODULE_LICENSE("GPL v2");