>-----Original Message----- >From: Mike Rapoport [mailto:mike@xxxxxxxxxxxxxx] >Sent: Thursday, October 28, 2010 2:25 PM >To: linux-mmc@xxxxxxxxxxxxxxx >Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; Chris Ball; Saeed >Bishara; Mike Rapoport >Subject: [PATCH v3 1/2] MMC: add support for the Marvell Dove >SDHCI controller > >Implement an sdhci-pltfm driver for the controller found on Marvell >Dove SoC > >Signed-off-by: Mike Rapoport <mike@xxxxxxxxxxxxxx> >CC: Saeed Bishara <saeed@xxxxxxxxxxx> >--- > drivers/mmc/host/Kconfig | 13 +++++++ > drivers/mmc/host/Makefile | 1 + > drivers/mmc/host/sdhci-dove.c | 70 >++++++++++++++++++++++++++++++++++++++++ > drivers/mmc/host/sdhci-pltfm.c | 3 ++ > drivers/mmc/host/sdhci-pltfm.h | 1 + > 5 files changed, 88 insertions(+), 0 deletions(-) > create mode 100644 drivers/mmc/host/sdhci-dove.c > >diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig >index 68d1279..4958839 100644 >--- a/drivers/mmc/host/Kconfig >+++ b/drivers/mmc/host/Kconfig >@@ -130,6 +130,19 @@ config MMC_SDHCI_CNS3XXX > > If unsure, say N. > >+config MMC_SDHCI_DOVE >+ bool "SDHCI support on Marvell's Dove SoC" >+ depends on ARCH_DOVE >+ depends on MMC_SDHCI_PLTFM >+ select MMC_SDHCI_IO_ACCESSORS >+ help >+ This selects the Secure Digital Host Controller Interface in >+ Marvell's Dove SoC. >+ >+ If you have a controller with this interface, say Y or M here. >+ >+ If unsure, say N. >+ > config MMC_SDHCI_S3C > tristate "SDHCI support on Samsung S3C SoC" > depends on MMC_SDHCI && PLAT_SAMSUNG >diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile >index 840bcb5..9e1c418 100644 >--- a/drivers/mmc/host/Makefile >+++ b/drivers/mmc/host/Makefile >@@ -40,6 +40,7 @@ obj-$(CONFIG_MMC_JZ4740) += jz4740_mmc.o > obj-$(CONFIG_MMC_SDHCI_PLTFM) += sdhci-platform.o > sdhci-platform-y := sdhci-pltfm.o > sdhci-platform-$(CONFIG_MMC_SDHCI_CNS3XXX) += sdhci-cns3xxx.o >+sdhci-platform-$(CONFIG_MMC_SDHCI_DOVE) += sdhci-dove.o > > obj-$(CONFIG_MMC_SDHCI_OF) += sdhci-of.o > sdhci-of-y := sdhci-of-core.o >diff --git a/drivers/mmc/host/sdhci-dove.c >b/drivers/mmc/host/sdhci-dove.c >new file mode 100644 >index 0000000..561167c >--- /dev/null >+++ b/drivers/mmc/host/sdhci-dove.c >@@ -0,0 +1,70 @@ >+/* >+ * sdhci-dove.c Support for SDHCI on Marvell's Dove SoC >+ * >+ * Author: Saeed Bishara <saeed@xxxxxxxxxxx> >+ * Mike Rapoport <mike@xxxxxxxxxxxxxx> >+ * Based on sdhci-cns3xxx.c >+ * >+ * 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. >+ * >+ * This program is distributed in the hope that it will be useful, >+ * but WITHOUT ANY WARRANTY; without even the implied warranty of >+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >+ * GNU General Public License for more details. >+ * >+ * You should have received a copy of the GNU General Public License >+ * along with this program; if not, write to the Free Software >+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. >+ */ >+ >+#include <linux/io.h> >+#include <linux/mmc/host.h> >+ >+#include "sdhci.h" >+#include "sdhci-pltfm.h" >+ >+static u16 sdhci_dove_readw(struct sdhci_host *host, int reg) >+{ >+ u16 ret; >+ >+ switch (reg) { >+ case SDHCI_HOST_VERSION: >+ case SDHCI_SLOT_INT_STATUS: >+ /* those registers don't exist */ >+ return 0; >+ default: >+ ret = readw(host->ioaddr + reg); >+ } >+ return ret; >+} >+ >+static u32 sdhci_dove_readl(struct sdhci_host *host, int reg) >+{ >+ u32 ret; >+ >+ switch (reg) { >+ case SDHCI_CAPABILITIES: >+ ret = readl(host->ioaddr + reg); >+ /* Mask the support for 3.0V */ >+ ret &= ~SDHCI_CAN_VDD_300; >+ break; >+ default: >+ ret = readl(host->ioaddr + reg); >+ } >+ return ret; >+} >+ >+static struct sdhci_ops sdhci_dove_ops = { >+ .read_w = sdhci_dove_readw, >+ .read_l = sdhci_dove_readl, >+}; >+ >+struct sdhci_pltfm_data sdhci_dove_pdata = { >+ .ops = &sdhci_dove_ops, >+ .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | >+ SDHCI_QUIRK_NO_BUSY_IRQ | >+ SDHCI_QUIRK_BROKEN_TIMEOUT_VAL | >+ SDHCI_QUIRK_FORCE_DMA, >+}; >diff --git a/drivers/mmc/host/sdhci-pltfm.c >b/drivers/mmc/host/sdhci-pltfm.c >index e045e3c..28d818e 100644 >--- a/drivers/mmc/host/sdhci-pltfm.c >+++ b/drivers/mmc/host/sdhci-pltfm.c >@@ -161,6 +161,9 @@ static const struct platform_device_id >sdhci_pltfm_ids[] = { > #ifdef CONFIG_MMC_SDHCI_CNS3XXX > { "sdhci-cns3xxx", (kernel_ulong_t)&sdhci_cns3xxx_pdata }, > #endif >+#ifdef CONFIG_MMC_SDHCI_DOVE >+ { "sdhci-dove", (kernel_ulong_t)&sdhci_dove_pdata }, >+#endif > { }, > }; > MODULE_DEVICE_TABLE(platform, sdhci_pltfm_ids); >diff --git a/drivers/mmc/host/sdhci-pltfm.h >b/drivers/mmc/host/sdhci-pltfm.h >index 900f329..718d837 100644 >--- a/drivers/mmc/host/sdhci-pltfm.h >+++ b/drivers/mmc/host/sdhci-pltfm.h >@@ -14,5 +14,6 @@ > #include <linux/sdhci-pltfm.h> > > extern struct sdhci_pltfm_data sdhci_cns3xxx_pdata; >+extern struct sdhci_pltfm_data sdhci_dove_pdata; > > #endif /* _DRIVERS_MMC_SDHCI_PLTFM_H */ >-- >1.7.3.1 > > Looks fine to me-- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
