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Fix mmc card detection

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SVN-Revision: 22481
This commit is contained in:
Lars-Peter Clausen 2010-08-04 13:26:22 +00:00
parent 20417d6663
commit 5b8cbd5d5a
1 changed files with 22 additions and 13 deletions
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35
target/linux/xburst/patches-2.6.35/054-mmc.patch
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@ -1,4 +1,4 @@
From 34e75141dfd8edae48030b61741c294fd0f952b1 Mon Sep 17 00:00:00 2001
From 11bc6d97096ab89da31f628c89b19ff37dfdd526 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 15 Jul 2010 20:06:04 +0000
Subject: [PATCH] MMC: Add support for the controller on JZ4740 SoCs.
@ -16,11 +16,14 @@ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/include/asm/mach-jz4740/jz4740_mmc.h | 15 +
drivers/mmc/host/Kconfig | 9 +
drivers/mmc/host/Makefile | 1 +
drivers/mmc/host/jz4740_mmc.c | 1033 ++++++++++++++++++++++++
4 files changed, 1058 insertions(+), 0 deletions(-)
drivers/mmc/host/jz4740_mmc.c | 1029 ++++++++++++++++++++++++
4 files changed, 1054 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/include/asm/mach-jz4740/jz4740_mmc.h
create mode 100644 drivers/mmc/host/jz4740_mmc.c
diff --git a/arch/mips/include/asm/mach-jz4740/jz4740_mmc.h b/arch/mips/include/asm/mach-jz4740/jz4740_mmc.h
new file mode 100644
index 0000000..8543f43
--- /dev/null
+++ b/arch/mips/include/asm/mach-jz4740/jz4740_mmc.h
@@ -0,0 +1,15 @@
@ -39,9 +42,11 @@ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+};
+
+#endif
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index f06d06e..d25e22c 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -457,3 +457,12 @@ config MMC_SH_MMCIF
@@ -432,3 +432,12 @@ config MMC_SH_MMCIF
This selects the MMC Host Interface controler (MMCIF).
This driver supports MMCIF in sh7724/sh7757/sh7372.
@ -54,19 +59,24 @@ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+ SoCs.
+ If you have a board based on such a SoC and with a SD/MMC slot,
+ say Y or M here.
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index e30c2ee..f4e53c9 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -37,6 +37,7 @@ obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc
obj-$(CONFIG_GPIOMMC) += gpiommc.o
@@ -36,6 +36,7 @@ obj-$(CONFIG_MMC_CB710) += cb710-mmc.o
obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o
obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o
obj-$(CONFIG_MMC_SH_MMCIF) += sh_mmcif.o
+obj-$(CONFIG_MMC_JZ4740) += jz4740_mmc.o
obj-$(CONFIG_MMC_SDHCI_OF) += sdhci-of.o
sdhci-of-y := sdhci-of-core.o
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
new file mode 100644
index 0000000..ad4f987
--- /dev/null
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -0,0 +1,1033 @@
@@ -0,0 +1,1029 @@
+/*
+ * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
+ * JZ4740 SD/MMC controller driver
@ -830,24 +840,20 @@ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+static int __devinit jz4740_mmc_request_cd_irq(struct platform_device *pdev,
+ struct jz4740_mmc_host *host)
+{
+ int ret;
+ struct jz4740_mmc_platform_data *pdata = pdev->dev.platform_data;
+
+ if (gpio_is_valid(pdata->gpio_card_detect))
+ if (!gpio_is_valid(pdata->gpio_card_detect))
+ return 0;
+
+ host->card_detect_irq = gpio_to_irq(pdata->gpio_card_detect);
+
+ if (host->card_detect_irq < 0) {
+ dev_warn(&pdev->dev, "Failed to get card detect irq\n");
+ return 0;
+ }
+
+ return request_irq(host->card_detect_irq, jz4740_mmc_card_detect_irq,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ "MMC card detect", host);
+
+
+ return ret;
+}
+
+static void jz4740_mmc_free_gpios(struct platform_device *pdev)
@ -1100,3 +1106,6 @@ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
+MODULE_DESCRIPTION("JZ4740 SD/MMC controller driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
--
1.5.6.5