linux-kernel - [PATCH 31/72] Blackfin: bf533-stamp: add resources for mmc

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Date:	Mon, 14 Sep 2009 16:07:35 -0400
From:	Mike Frysinger <vapier@...too.org>
To:	linux-kernel@...r.kernel.org
Cc:	uclinux-dist-devel@...ckfin.uclinux.org, Yi Li <yi.li@...log.com>
Subject: [PATCH 31/72] Blackfin: bf533-stamp: add resources for mmc_spi card

From: Yi Li <yi.li@...log.com>

Signed-off-by: Yi Li <yi.li@...log.com>
Signed-off-by: Mike Frysinger <vapier@...too.org>
---
 arch/blackfin/mach-bf533/boards/stamp.c |   40 +++++++++++++++++++++++++++++++
 1 files changed, 40 insertions(+), 0 deletions(-)

diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 42d4c9f..e6548a6 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -35,6 +35,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
+#include <linux/spi/mmc_spi.h>
 #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
 #include <linux/usb/isp1362.h>
 #endif
@@ -223,6 +224,34 @@ static struct bfin5xx_spi_chip spidev_chip_info = {
 };
 #endif
 
+#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+#define MMC_SPI_CARD_DETECT_INT IRQ_PF5
+static int bfin_mmc_spi_init(struct device *dev,
+	irqreturn_t (*detect_int)(int, void *), void *data)
+{
+	return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int,
+		IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+		"mmc-spi-detect", data);
+}
+
+static void bfin_mmc_spi_exit(struct device *dev, void *data)
+{
+	free_irq(MMC_SPI_CARD_DETECT_INT, data);
+}
+
+static struct mmc_spi_platform_data bfin_mmc_spi_pdata = {
+	.init = bfin_mmc_spi_init,
+	.exit = bfin_mmc_spi_exit,
+	.detect_delay = 100, /* msecs */
+};
+
+static struct bfin5xx_spi_chip  mmc_spi_chip_info = {
+	.enable_dma = 0,
+	.bits_per_word = 8,
+	.pio_interrupt = 0,
+};
+#endif
+
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 	{
@@ -286,6 +315,17 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.controller_data = &spidev_chip_info,
 	},
 #endif
+#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
+	{
+		.modalias = "mmc_spi",
+		.max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
+		.bus_num = 0,
+		.chip_select = 4,
+		.platform_data = &bfin_mmc_spi_pdata,
+		.controller_data = &mmc_spi_chip_info,
+		.mode = SPI_MODE_3,
+	},
+#endif
 };
 
 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
-- 
1.6.4.2

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