Merge tag 'mmc-merge-for-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC changes from Chris Ball
 - at91-mci: This driver will be replaced by atmel-mci in 3.7.
 - atmel-mci: Add support for old at91-mci hardware.
 - dw_mmc: Allow multiple controllers; this previously caused
   corruption.
 - imxmmc: Remove this driver, replaced by mxcmmc.
 - mmci: Add device tree support.
 - omap: Allow multiple controllers.
 - omap_hsmmc: Auto CMD12, DDR support.
 - tegra: Support SD 3.0 spec.

Fix up the usual trivial conflicts in feature-removal-schedule.txt

* tag 'mmc-merge-for-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (38 commits)
  mmc: at91-mci: this driver is now deprecated
  mmc: omap_hsmmc: pass IRQF_ONESHOT to request_threaded_irq
  mmc: block: Allow disabling 512B sector size emulation
  mmc: atmel-mci: add debug logs
  mmc: atmel-mci: add support for version lower than v2xx
  mmc: atmel-mci: change the state machine for compatibility with old IP
  mmc: atmel-mci: the r/w proof capability lack was not well managed
  mmc: dw_mmc: Fixed sdio interrupt mask bit setting bug
  mmc: omap: convert to module_platform_driver
  mmc: omap: make it behave well as a module
  mmc: omap: convert to per instance workqueue
  mmc: core: Remove dead code
  mmc: card: Avoid null pointer dereference
  mmc: core: Prevent eMMC VCC supply to be cut from late init
  mmc: dw_mmc: make multiple instances of dw_mci_card_workqueue
  mmc: queue: remove redundant memsets
  mmc: queue: rename mmc_request function
  mmc: core: skip card initialization if power class selection fails
  mmc: core: fix the signaling 1.8V for HS200
  mmc: core: fix the decision of HS200/DDR card-type
  ...

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index ff5a1699193..b38d8a78f6a 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -32,8 +32,13 @@
 
 #include "sdhci-pltfm.h"
 
+/* Tegra SDHOST controller vendor register definitions */
+#define SDHCI_TEGRA_VENDOR_MISC_CTRL		0x120
+#define SDHCI_MISC_CTRL_ENABLE_SDHCI_SPEC_300	0x20
+
 #define NVQUIRK_FORCE_SDHCI_SPEC_200	BIT(0)
 #define NVQUIRK_ENABLE_BLOCK_GAP_DET	BIT(1)
+#define NVQUIRK_ENABLE_SDHCI_SPEC_300	BIT(2)
 
 struct sdhci_tegra_soc_data {
 	struct sdhci_pltfm_data *pdata;
@@ -120,6 +125,25 @@ static irqreturn_t carddetect_irq(int irq, void *data)
 	return IRQ_HANDLED;
 };
 
+static void tegra_sdhci_reset_exit(struct sdhci_host *host, u8 mask)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_tegra *tegra_host = pltfm_host->priv;
+	const struct sdhci_tegra_soc_data *soc_data = tegra_host->soc_data;
+
+	if (!(mask & SDHCI_RESET_ALL))
+		return;
+
+	/* Erratum: Enable SDHCI spec v3.00 support */
+	if (soc_data->nvquirks & NVQUIRK_ENABLE_SDHCI_SPEC_300) {
+		u32 misc_ctrl;
+
+		misc_ctrl = sdhci_readb(host, SDHCI_TEGRA_VENDOR_MISC_CTRL);
+		misc_ctrl |= SDHCI_MISC_CTRL_ENABLE_SDHCI_SPEC_300;
+		sdhci_writeb(host, misc_ctrl, SDHCI_TEGRA_VENDOR_MISC_CTRL);
+	}
+}
+
 static int tegra_sdhci_8bit(struct sdhci_host *host, int bus_width)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -148,6 +172,7 @@ static struct sdhci_ops tegra_sdhci_ops = {
 	.read_w     = tegra_sdhci_readw,
 	.write_l    = tegra_sdhci_writel,
 	.platform_8bit_width = tegra_sdhci_8bit,
+	.platform_reset_exit = tegra_sdhci_reset_exit,
 };
 
 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
@@ -178,6 +203,7 @@ static struct sdhci_pltfm_data sdhci_tegra30_pdata = {
 
 static struct sdhci_tegra_soc_data soc_data_tegra30 = {
 	.pdata = &sdhci_tegra30_pdata,
+	.nvquirks = NVQUIRK_ENABLE_SDHCI_SPEC_300,
 };
 #endif