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path: root/packages/linux/linux-2.6.18/mmc-add-platform-data.patch
blob: b0a67b38ca9db6cc0456a059b2cce6f9568eae74 (plain)
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---
 arch/avr32/boards/atngw/setup.c       |    7 ++++
 arch/avr32/mach-at32ap/at32ap7000.c   |   13 +++++++--
 drivers/mmc/atmel-mci.c               |   49 ++++++++++++++++++++++++++++++++++
 include/asm-avr32/arch-at32ap/board.h |    7 ++++
 4 files changed, 72 insertions(+), 4 deletions(-)

Index: linux-2.6.18-avr32/arch/avr32/boards/atngw/setup.c
===================================================================
--- linux-2.6.18-avr32.orig/arch/avr32/boards/atngw/setup.c	2007-01-15 10:24:38.000000000 +0100
+++ linux-2.6.18-avr32/arch/avr32/boards/atngw/setup.c	2007-01-15 10:25:04.000000000 +0100
@@ -35,6 +35,11 @@ static struct spi_board_info spi_board_i
 	},
 };
 
+static struct mmci_platform_data __initdata mmci0_data = {
+		.detect_pin	= GPIO_PIN_PC(25),
+		.wp_pin		= GPIO_PIN_PE(0),
+};
+
 static int __init parse_tag_ethernet(struct tag *tag)
 {
 	int i;
@@ -72,7 +77,7 @@ static int __init atngw_init(void)
 	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
 
 	at32_add_device_spi(0);
-	at32_add_device_mmci(0);
+	at32_add_device_mmci(0, &mmci0_data);
 	at32_add_device_usb(0);
 
 	return 0;
Index: linux-2.6.18-avr32/arch/avr32/mach-at32ap/at32ap7000.c
===================================================================
--- linux-2.6.18-avr32.orig/arch/avr32/mach-at32ap/at32ap7000.c	2007-01-15 10:24:38.000000000 +0100
+++ linux-2.6.18-avr32/arch/avr32/mach-at32ap/at32ap7000.c	2007-01-15 10:25:04.000000000 +0100
@@ -749,14 +749,16 @@ at32_add_device_eth(unsigned int id, str
 /* --------------------------------------------------------------------
  * MMC
  * -------------------------------------------------------------------- */
+static struct mmci_platform_data mmci0_data;
 static struct resource mmci0_resource[] = {
 	PBMEM(0xfff02400),
 	IRQ(28),
 };
-DEFINE_DEV(mmci, 0);
+DEFINE_DEV_DATA(mmci, 0);
 DEV_CLK(mck, mmci0, pbb, 9);
 
-struct platform_device *__init at32_add_device_mmci(unsigned int id)
+struct platform_device *__init
+at32_add_device_mmci(unsigned int id, struct mmci_platform_data *data)
 {
 	struct platform_device *pdev;
 
@@ -774,6 +776,13 @@ struct platform_device *__init at32_add_
 		return NULL;
 	}
 
+	if (data && data->detect_pin != GPIO_PIO_NONE)
+		at32_select_gpio(data->detect_pin, 0);
+	if (data && data->wp_pin != GPIO_PIO_NONE)
+		at32_select_gpio(data->wp_pin, 0);
+
+	memcpy(pdev->dev.platform_data, data,
+			sizeof(struct mmci_platform_data));
 	platform_device_register(pdev);
 	return pdev;
 }
Index: linux-2.6.18-avr32/include/asm-avr32/arch-at32ap/board.h
===================================================================
--- linux-2.6.18-avr32.orig/include/asm-avr32/arch-at32ap/board.h	2007-01-15 10:24:38.000000000 +0100
+++ linux-2.6.18-avr32/include/asm-avr32/arch-at32ap/board.h	2007-01-15 10:25:04.000000000 +0100
@@ -24,7 +24,12 @@ struct eth_platform_data {
 struct platform_device *
 at32_add_device_eth(unsigned int id, struct eth_platform_data *data);
 
-struct platform_device *at32_add_device_mmci(unsigned int id);
+struct mmci_platform_data {
+	unsigned int detect_pin;
+	unsigned int wp_pin;
+};
+struct platform_device *
+at32_add_device_mmci(unsigned int id, struct mmci_platform_data *data);
 struct platform_device *at32_add_device_spi(unsigned int id);
 struct platform_device *at32_add_device_twi(unsigned int id);
 
Index: linux-2.6.18-avr32/drivers/mmc/atmel-mci.c
===================================================================
--- linux-2.6.18-avr32.orig/drivers/mmc/atmel-mci.c	2007-01-15 10:23:19.000000000 +0100
+++ linux-2.6.18-avr32/drivers/mmc/atmel-mci.c	2007-01-15 10:27:37.000000000 +0100
@@ -22,6 +22,9 @@
 
 #include <asm/dma-controller.h>
 #include <asm/io.h>
+#include <asm/arch/at32ap7000.h>
+#include <asm/arch/board.h>
+#include <asm/arch/gpio.h>
 
 #include "atmel-mci.h"
 
@@ -68,9 +71,13 @@ struct atmel_mci {
 	unsigned long		completed_events;
 	u32			error_status;
 
+	int			present;
+	unsigned int		wp_present:1;
+
 	unsigned long		bus_hz;
 	unsigned long		mapbase;
 	struct clk		*mck;
+	struct mmci_platform_data *board;
 	struct platform_device	*pdev;
 };
 
@@ -626,6 +633,7 @@ static int __devinit atmci_probe(struct 
 	if (!host->regs)
 		goto out_disable_clk;
 
+	host->board = pdev->dev.platform_data;
 	host->bus_hz = clk_get_rate(host->mck);
 	host->mapbase = regs->start;
 
@@ -641,6 +649,32 @@ static int __devinit atmci_probe(struct 
 	if (ret)
 		goto out_unmap;
 
+	if (host->board && host->board->detect_pin != GPIO_PIO_NONE) {
+		ret = gpio_request(host->board->detect_pin, "mmc_detect");
+		if (ret) {
+			printk(KERN_WARNING "%s: no detect pin available (%d)\n",
+					mmc_hostname(host->mmc), ret);
+			host->present = -1;
+		} else {
+			host->present = !gpio_get_value(host->board->detect_pin);
+		}
+	} else {
+		host->present = -1;
+	}
+
+	if (host->board && host->board->wp_pin != GPIO_PIO_NONE) {
+		ret = gpio_request(host->board->wp_pin, "mmc_wp");
+		if (ret) {
+			printk(KERN_WARNING "%s: no WP pin available (%d)\n",
+					mmc_hostname(host->mmc), ret);
+			host->wp_present = 0;
+		} else {
+			host->wp_present = 1;
+		}
+	} else {
+		host->wp_present = 0;
+	}
+
 	/* TODO: Get this information from platform data */
 	ret = -ENOMEM;
 	host->dma.req.req.dmac = find_dma_controller(0);
@@ -677,6 +711,10 @@ static int __devinit atmci_probe(struct 
 	return 0;
 
 out_free_irq:
+	if (host->present != -1)
+		gpio_free(host->board->detect_pin);
+	if (host->board->wp_pin != GPIO_PIO_NONE)
+		gpio_free(host->board->wp_pin);
 	free_irq(irq, mmc);
 out_unmap:
 	iounmap(host->regs);
@@ -701,6 +739,17 @@ static int __devexit atmci_remove(struct
 		mci_writel(host, CR, MCI_BIT(MCIDIS));
 		mci_readl(host, SR);
 
+		if (host->dma.req.req.channel)
+			dma_release_channel(host->dma.req.req.dmac,
+					host->dma.req.req.channel);
+
+		if (host->present != -1) {
+			cancel_delayed_work(&host->mmc->detect);
+			gpio_free(host->board->detect_pin);
+		}
+		if (host->board->wp_pin != GPIO_PIO_NONE)
+			gpio_free(host->board->wp_pin);
+
 		free_irq(platform_get_irq(pdev, 0), host->mmc);
 		iounmap(host->regs);