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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 11:37:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 11:37:22 -0700
commit1d3c6ff44ad4b5f113602e153026a338f0f9b3ff (patch)
tree1e1f2932634fc6d0e4acfe68496c1c727b83a13e /drivers/mmc
parent7c7cbaf5b82c418cd3b1dcf718f71d0e6057e639 (diff)
parent717e7c2672e37253a4d3aa70e4716b5b0a658761 (diff)
downloadlinux-1d3c6ff44ad4b5f113602e153026a338f0f9b3ff.tar.gz
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (224 commits)
  ARM: remove 'select GENERIC_TIME'
  ARM: 6136/1: ARCH_REQUIRE_GPIOLIB selects GENERIC_GPIO
  ARM: 6074/1: oprofile: convert from sysdev to platform device
  ARM: 6073/1: oprofile: remove old files and update KConfig
  ARM: 6072/1: oprofile: use perf-events framework as backend
  ARM: 6071/1: perf-events: allow modules to query the number of hardware counters
  ARM: 6070/1: perf-events: add support for xscale PMUs
  ARM: 6069/1: perf-events: use numeric ID to identify PMU
  ARM: 6064/1: pmu: register IRQs at runtime
  ARM: Optionally allow ARMv6 to use 'normal, bufferable' memory for DMA
  ARM: 6134/1: Handle instruction cache maintenance fault properly
  ARM: nwfpe: allow debugging output to be configured at runtime
  ARM: rename mach_cpu_disable() to platform_cpu_disable()
  ARM: 6132/1: PL330: Add common core driver
  ARM: 6094/1: Extend cache-l2x0 to support the 16-way PL310
  ARM: Move memory mapping into mmu.c
  ARM: Ensure meminfo is sorted prior to sanity_check_meminfo
  ARM: Remove useless linux/bootmem.h includes
  ARM: convert /proc/cpu/aligment to seq_file
  arm: use asm-generic/scatterlist.h
  ...
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/mmci.c19
-rw-r--r--drivers/mmc/host/mmci.h6
-rw-r--r--drivers/mmc/host/pxamci.c2
3 files changed, 21 insertions, 6 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 84c103a7ee13..ff115d920888 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -55,14 +55,16 @@ static void mmci_set_clkreg(struct mmci_host *host, unsigned int desired)
 			host->cclk = host->mclk / (2 * (clk + 1));
 		}
 		if (host->hw_designer == AMBA_VENDOR_ST)
-			clk |= MCI_FCEN; /* Bug fix in ST IP block */
+			clk |= MCI_ST_FCEN; /* Bug fix in ST IP block */
 		clk |= MCI_CLK_ENABLE;
 		/* This hasn't proven to be worthwhile */
 		/* clk |= MCI_CLK_PWRSAVE; */
 	}
 
 	if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_4)
-		clk |= MCI_WIDE_BUS;
+		clk |= MCI_4BIT_BUS;
+	if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_8)
+		clk |= MCI_ST_8BIT_BUS;
 
 	writel(clk, host->base + MMCICLOCK);
 }
@@ -629,7 +631,18 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id)
 
 	mmc->ops = &mmci_ops;
 	mmc->f_min = (host->mclk + 511) / 512;
-	mmc->f_max = min(host->mclk, fmax);
+	/*
+	 * If the platform data supplies a maximum operating
+	 * frequency, this takes precedence. Else, we fall back
+	 * to using the module parameter, which has a (low)
+	 * default value in case it is not specified. Either
+	 * value must not exceed the clock rate into the block,
+	 * of course.
+	 */
+	if (plat->f_max)
+		mmc->f_max = min(host->mclk, plat->f_max);
+	else
+		mmc->f_max = min(host->mclk, fmax);
 	dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
 
 #ifdef CONFIG_REGULATOR
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 1ceb9a90f59b..d77062e5e3af 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -25,9 +25,11 @@
 #define MCI_CLK_ENABLE		(1 << 8)
 #define MCI_CLK_PWRSAVE		(1 << 9)
 #define MCI_CLK_BYPASS		(1 << 10)
-#define MCI_WIDE_BUS		(1 << 11)
+#define MCI_4BIT_BUS		(1 << 11)
+/* 8bit wide buses supported in ST Micro versions */
+#define MCI_ST_8BIT_BUS		(1 << 12)
 /* HW flow control on the ST Micro version */
-#define MCI_FCEN		(1 << 13)
+#define MCI_ST_FCEN		(1 << 13)
 
 #define MMCIARGUMENT		0x008
 #define MMCICOMMAND		0x00c
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 0ed48959b590..e4f00e70a749 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -544,7 +544,7 @@ static irqreturn_t pxamci_detect_irq(int irq, void *devid)
 {
 	struct pxamci_host *host = mmc_priv(devid);
 
-	mmc_detect_change(devid, host->pdata->detect_delay);
+	mmc_detect_change(devid, msecs_to_jiffies(host->pdata->detect_delay_ms));
 	return IRQ_HANDLED;
 }