sdhci-of: rename main driver file prior to reorganization

This patch renames sdhci-of.c to sdhci-of-core.c before reorganizing the
driver to support additional hardware.

The driver is still built as sdhci-of despite the rename of the file.  No
functional change.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 336 deletions

diff --git a/drivers/mmc/host/sdhci-of.c b/drivers/mmc/host/sdhci-of.c
deleted file mode 100644
index 01ab916c280..00000000000
--- a/drivers/mmc/host/sdhci-of.c
+++ /dev/null
@@ -1,336 +0,0 @@
-/*
- * OpenFirmware bindings for Secure Digital Host Controller Interface.
- *
- * Copyright (c) 2007 Freescale Semiconductor, Inc.
- * Copyright (c) 2009 MontaVista Software, Inc.
- *
- * Authors: Xiaobo Xie <X.Xie@freescale.com>
- *	    Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/mmc/host.h>
-#include <asm/machdep.h>
-#include "sdhci.h"
-
-struct sdhci_of_data {
-	unsigned int quirks;
-	struct sdhci_ops ops;
-};
-
-struct sdhci_of_host {
-	unsigned int clock;
-	u16 xfer_mode_shadow;
-};
-
-/*
- * Ops and quirks for the Freescale eSDHC controller.
- */
-
-#define ESDHC_DMA_SYSCTL	0x40c
-#define ESDHC_DMA_SNOOP		0x00000040
-
-#define ESDHC_SYSTEM_CONTROL	0x2c
-#define ESDHC_CLOCK_MASK	0x0000fff0
-#define ESDHC_PREDIV_SHIFT	8
-#define ESDHC_DIVIDER_SHIFT	4
-#define ESDHC_CLOCK_PEREN	0x00000004
-#define ESDHC_CLOCK_HCKEN	0x00000002
-#define ESDHC_CLOCK_IPGEN	0x00000001
-
-#define ESDHC_HOST_CONTROL_RES	0x05
-
-static u32 esdhc_readl(struct sdhci_host *host, int reg)
-{
-	return in_be32(host->ioaddr + reg);
-}
-
-static u16 esdhc_readw(struct sdhci_host *host, int reg)
-{
-	u16 ret;
-
-	if (unlikely(reg == SDHCI_HOST_VERSION))
-		ret = in_be16(host->ioaddr + reg);
-	else
-		ret = in_be16(host->ioaddr + (reg ^ 0x2));
-	return ret;
-}
-
-static u8 esdhc_readb(struct sdhci_host *host, int reg)
-{
-	return in_8(host->ioaddr + (reg ^ 0x3));
-}
-
-static void esdhc_writel(struct sdhci_host *host, u32 val, int reg)
-{
-	out_be32(host->ioaddr + reg, val);
-}
-
-static void esdhc_writew(struct sdhci_host *host, u16 val, int reg)
-{
-	struct sdhci_of_host *of_host = sdhci_priv(host);
-	int base = reg & ~0x3;
-	int shift = (reg & 0x2) * 8;
-
-	switch (reg) {
-	case SDHCI_TRANSFER_MODE:
-		/*
-		 * Postpone this write, we must do it together with a
-		 * command write that is down below.
-		 */
-		of_host->xfer_mode_shadow = val;
-		return;
-	case SDHCI_COMMAND:
-		esdhc_writel(host, val << 16 | of_host->xfer_mode_shadow,
-			     SDHCI_TRANSFER_MODE);
-		return;
-	case SDHCI_BLOCK_SIZE:
-		/*
-		 * Two last DMA bits are reserved, and first one is used for
-		 * non-standard blksz of 4096 bytes that we don't support
-		 * yet. So clear the DMA boundary bits.
-		 */
-		val &= ~SDHCI_MAKE_BLKSZ(0x7, 0);
-		/* fall through */
-	}
-	clrsetbits_be32(host->ioaddr + base, 0xffff << shift, val << shift);
-}
-
-static void esdhc_writeb(struct sdhci_host *host, u8 val, int reg)
-{
-	int base = reg & ~0x3;
-	int shift = (reg & 0x3) * 8;
-
-	/* Prevent SDHCI core from writing reserved bits (e.g. HISPD). */
-	if (reg == SDHCI_HOST_CONTROL)
-		val &= ~ESDHC_HOST_CONTROL_RES;
-
-	clrsetbits_be32(host->ioaddr + base , 0xff << shift, val << shift);
-}
-
-static void esdhc_set_clock(struct sdhci_host *host, unsigned int clock)
-{
-	int pre_div = 2;
-	int div = 1;
-
-	clrbits32(host->ioaddr + ESDHC_SYSTEM_CONTROL, ESDHC_CLOCK_IPGEN |
-		  ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN | ESDHC_CLOCK_MASK);
-
-	if (clock == 0)
-		goto out;
-
-	while (host->max_clk / pre_div / 16 > clock && pre_div < 256)
-		pre_div *= 2;
-
-	while (host->max_clk / pre_div / div > clock && div < 16)
-		div++;
-
-	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
-		clock, host->max_clk / pre_div / div);
-
-	pre_div >>= 1;
-	div--;
-
-	setbits32(host->ioaddr + ESDHC_SYSTEM_CONTROL, ESDHC_CLOCK_IPGEN |
-		  ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN |
-		  div << ESDHC_DIVIDER_SHIFT | pre_div << ESDHC_PREDIV_SHIFT);
-	mdelay(100);
-out:
-	host->clock = clock;
-}
-
-static int esdhc_enable_dma(struct sdhci_host *host)
-{
-	setbits32(host->ioaddr + ESDHC_DMA_SYSCTL, ESDHC_DMA_SNOOP);
-	return 0;
-}
-
-static unsigned int esdhc_get_max_clock(struct sdhci_host *host)
-{
-	struct sdhci_of_host *of_host = sdhci_priv(host);
-
-	return of_host->clock;
-}
-
-static unsigned int esdhc_get_min_clock(struct sdhci_host *host)
-{
-	struct sdhci_of_host *of_host = sdhci_priv(host);
-
-	return of_host->clock / 256 / 16;
-}
-
-static struct sdhci_of_data sdhci_esdhc = {
-	.quirks = SDHCI_QUIRK_FORCE_BLK_SZ_2048 |
-		  SDHCI_QUIRK_BROKEN_CARD_DETECTION |
-		  SDHCI_QUIRK_NO_BUSY_IRQ |
-		  SDHCI_QUIRK_NONSTANDARD_CLOCK |
-		  SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
-		  SDHCI_QUIRK_PIO_NEEDS_DELAY |
-		  SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET |
-		  SDHCI_QUIRK_NO_CARD_NO_RESET,
-	.ops = {
-		.readl = esdhc_readl,
-		.readw = esdhc_readw,
-		.readb = esdhc_readb,
-		.writel = esdhc_writel,
-		.writew = esdhc_writew,
-		.writeb = esdhc_writeb,
-		.set_clock = esdhc_set_clock,
-		.enable_dma = esdhc_enable_dma,
-		.get_max_clock = esdhc_get_max_clock,
-		.get_min_clock = esdhc_get_min_clock,
-	},
-};
-
-#ifdef CONFIG_PM
-
-static int sdhci_of_suspend(struct of_device *ofdev, pm_message_t state)
-{
-	struct sdhci_host *host = dev_get_drvdata(&ofdev->dev);
-
-	return mmc_suspend_host(host->mmc, state);
-}
-
-static int sdhci_of_resume(struct of_device *ofdev)
-{
-	struct sdhci_host *host = dev_get_drvdata(&ofdev->dev);
-
-	return mmc_resume_host(host->mmc);
-}
-
-#else
-
-#define sdhci_of_suspend NULL
-#define sdhci_of_resume NULL
-
-#endif
-
-static bool __devinit sdhci_of_wp_inverted(struct device_node *np)
-{
-	if (of_get_property(np, "sdhci,wp-inverted", NULL))
-		return true;
-
-	/* Old device trees don't have the wp-inverted property. */
-	return machine_is(mpc837x_rdb) || machine_is(mpc837x_mds);
-}
-
-static int __devinit sdhci_of_probe(struct of_device *ofdev,
-				 const struct of_device_id *match)
-{
-	struct device_node *np = ofdev->node;
-	struct sdhci_of_data *sdhci_of_data = match->data;
-	struct sdhci_host *host;
-	struct sdhci_of_host *of_host;
-	const u32 *clk;
-	int size;
-	int ret;
-
-	if (!of_device_is_available(np))
-		return -ENODEV;
-
-	host = sdhci_alloc_host(&ofdev->dev, sizeof(*of_host));
-	if (IS_ERR(host))
-		return -ENOMEM;
-
-	of_host = sdhci_priv(host);
-	dev_set_drvdata(&ofdev->dev, host);
-
-	host->ioaddr = of_iomap(np, 0);
-	if (!host->ioaddr) {
-		ret = -ENOMEM;
-		goto err_addr_map;
-	}
-
-	host->irq = irq_of_parse_and_map(np, 0);
-	if (!host->irq) {
-		ret = -EINVAL;
-		goto err_no_irq;
-	}
-
-	host->hw_name = dev_name(&ofdev->dev);
-	if (sdhci_of_data) {
-		host->quirks = sdhci_of_data->quirks;
-		host->ops = &sdhci_of_data->ops;
-	}
-
-	if (of_get_property(np, "sdhci,1-bit-only", NULL))
-		host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
-
-	if (sdhci_of_wp_inverted(np))
-		host->quirks |= SDHCI_QUIRK_INVERTED_WRITE_PROTECT;
-
-	clk = of_get_property(np, "clock-frequency", &size);
-	if (clk && size == sizeof(*clk) && *clk)
-		of_host->clock = *clk;
-
-	ret = sdhci_add_host(host);
-	if (ret)
-		goto err_add_host;
-
-	return 0;
-
-err_add_host:
-	irq_dispose_mapping(host->irq);
-err_no_irq:
-	iounmap(host->ioaddr);
-err_addr_map:
-	sdhci_free_host(host);
-	return ret;
-}
-
-static int __devexit sdhci_of_remove(struct of_device *ofdev)
-{
-	struct sdhci_host *host = dev_get_drvdata(&ofdev->dev);
-
-	sdhci_remove_host(host, 0);
-	sdhci_free_host(host);
-	irq_dispose_mapping(host->irq);
-	iounmap(host->ioaddr);
-	return 0;
-}
-
-static const struct of_device_id sdhci_of_match[] = {
-	{ .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc, },
-	{ .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc, },
-	{ .compatible = "fsl,esdhc", .data = &sdhci_esdhc, },
-	{ .compatible = "generic-sdhci", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, sdhci_of_match);
-
-static struct of_platform_driver sdhci_of_driver = {
-	.driver.name = "sdhci-of",
-	.match_table = sdhci_of_match,
-	.probe = sdhci_of_probe,
-	.remove = __devexit_p(sdhci_of_remove),
-	.suspend = sdhci_of_suspend,
-	.resume	= sdhci_of_resume,
-};
-
-static int __init sdhci_of_init(void)
-{
-	return of_register_platform_driver(&sdhci_of_driver);
-}
-module_init(sdhci_of_init);
-
-static void __exit sdhci_of_exit(void)
-{
-	of_unregister_platform_driver(&sdhci_of_driver);
-}
-module_exit(sdhci_of_exit);
-
-MODULE_DESCRIPTION("Secure Digital Host Controller Interface OF driver");
-MODULE_AUTHOR("Xiaobo Xie <X.Xie@freescale.com>, "
-	      "Anton Vorontsov <avorontsov@ru.mvista.com>");
-MODULE_LICENSE("GPL");