Re: [PATCH] OMAP4: MMC driver support on OMAP4

From: kishore kadiyala
Date: Wed Sep 02 2009 - 09:30:31 EST

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Resending the patch, CC'ing LO.

--Kishore

This Patch adds basic support for all 5 MMC controllers on OMAP4.

Signed-off-by: Kishore Kadiyala <kishore.kadiyala@xxxxxx>
---
This patch doesn't include mmc-regulator support

arch/arm/mach-omap2/devices.c | 42 +++++++++++++++++++++++++++++----
arch/arm/plat-omap/include/mach/irqs.h | 2 +
arch/arm/plat-omap/include/mach/mmc.h | 9 ++++++-
drivers/mmc/host/Kconfig | 6 ++--
drivers/mmc/host/omap_hsmmc.c | 10 +++++++
5 files changed, 60 insertions(+), 9 deletions(-)

Index: kernel-omap4-base/arch/arm/mach-omap2/devices.c
===================================================================
--- kernel-omap4-base.orig/arch/arm/mach-omap2/devices.c
+++ kernel-omap4-base/arch/arm/mach-omap2/devices.c
@@ -397,7 +397,7 @@ static inline void omap_init_sha1_md5(vo

/*-------------------------------------------------------------------------*/

-#ifdef CONFIG_ARCH_OMAP3
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)

#define MMCHS_SYSCONFIG 0x0010
#define MMCHS_SYSCONFIG_SWRESET (1 << 1)
@@ -424,8 +424,8 @@ static struct platform_device dummy_pdev
**/
static void __init omap_hsmmc_reset(void)
{
- u32 i, nr_controllers = cpu_is_omap34xx() ? OMAP34XX_NR_MMC :
- OMAP24XX_NR_MMC;
+ u32 i, nr_controllers = cpu_is_omap44xx() ? OMAP44XX_NR_MMC :
+ (cpu_is_omap34xx() ? OMAP34XX_NR_MMC : OMAP24XX_NR_MMC);

for (i = 0; i < nr_controllers; i++) {
u32 v, base = 0;
@@ -442,8 +442,21 @@ static void __init omap_hsmmc_reset(void
case 2:
base = OMAP3_MMC3_BASE;
break;
+ case 3:
+ if (!cpu_is_omap44xx())
+ return;
+ base = OMAP4_MMC4_BASE;
+ break;
+ case 4:
+ if (!cpu_is_omap44xx())
+ return;
+ base = OMAP4_MMC5_BASE;
+ break;
}

+ if (cpu_is_omap44xx())
+ base += OMAP4_MMC_REG_OFFSET;
+
dummy_pdev.id = i;
dev_set_name(&dummy_pdev.dev, "mmci-omap-hs.%d", i);
iclk = clk_get(dev, "ick");
@@ -540,11 +553,23 @@ void __init omap2_init_mmc(struct omap_m
irq = INT_24XX_MMC2_IRQ;
break;
case 2:
- if (!cpu_is_omap34xx())
+ if (!cpu_is_omap44xx() && !cpu_is_omap34xx())
return;
base = OMAP3_MMC3_BASE;
irq = INT_34XX_MMC3_IRQ;
break;
+ case 3:
+ if (!cpu_is_omap44xx())
+ return;
+ base = OMAP4_MMC4_BASE + OMAP4_MMC_REG_OFFSET;
+ irq = INT_44XX_MMC4_IRQ;
+ break;
+ case 4:
+ if (!cpu_is_omap44xx())
+ return;
+ base = OMAP4_MMC5_BASE + OMAP4_MMC_REG_OFFSET;
+ irq = INT_44XX_MMC5_IRQ;
+ break;
default:
continue;
}
@@ -552,8 +577,15 @@ void __init omap2_init_mmc(struct omap_m
if (cpu_is_omap2420()) {
size = OMAP2420_MMC_SIZE;
name = "mmci-omap";
+ } else if (cpu_is_omap44xx()) {
+ if (i < 3) {
+ base += OMAP4_MMC_REG_OFFSET;
+ irq += IRQ_GIC_START;
+ }
+ size = OMAP4_HSMMC_SIZE;
+ name = "mmci-omap-hs";
} else {
- size = HSMMC_SIZE;
+ size = OMAP3_HSMMC_SIZE;
name = "mmci-omap-hs";
}
omap_mmc_add(name, i, base, size, irq, mmc_data[i]);
Index: kernel-omap4-base/arch/arm/plat-omap/include/mach/irqs.h
===================================================================
--- kernel-omap4-base.orig/arch/arm/plat-omap/include/mach/irqs.h
+++ kernel-omap4-base/arch/arm/plat-omap/include/mach/irqs.h
@@ -503,6 +503,7 @@
#define INT_44XX_FPKA_READY_IRQ (50 + IRQ_GIC_START)
#define INT_44XX_SHA1MD51_IRQ (51 + IRQ_GIC_START)
#define INT_44XX_RNG_IRQ (52 + IRQ_GIC_START)
+#define INT_44XX_MMC5_IRQ (59 + IRQ_GIC_START)
#define INT_44XX_I2C3_IRQ (61 + IRQ_GIC_START)
#define INT_44XX_FPKA_ERROR_IRQ (64 + IRQ_GIC_START)
#define INT_44XX_PBIAS_IRQ (75 + IRQ_GIC_START)
@@ -511,6 +512,7 @@
#define INT_44XX_TLL_IRQ (78 + IRQ_GIC_START)
#define INT_44XX_PARTHASH_IRQ (79 + IRQ_GIC_START)
#define INT_44XX_MMC3_IRQ (94 + IRQ_GIC_START)
+#define INT_44XX_MMC4_IRQ (96 + IRQ_GIC_START)

/* Max. 128 level 2 IRQs (OMAP1610), 192 GPIOs (OMAP730/850) and
Index: kernel-omap4-base/arch/arm/plat-omap/include/mach/mmc.h
===================================================================
--- kernel-omap4-base.orig/arch/arm/plat-omap/include/mach/mmc.h
+++ kernel-omap4-base/arch/arm/plat-omap/include/mach/mmc.h
@@ -25,11 +25,18 @@

#define OMAP24XX_NR_MMC 2
#define OMAP34XX_NR_MMC 3
+#define OMAP44XX_NR_MMC 5
#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
-#define HSMMC_SIZE 0x200
+#define OMAP3_HSMMC_SIZE 0x200
+#define OMAP4_HSMMC_SIZE 0x1000
#define OMAP2_MMC1_BASE 0x4809c000
#define OMAP2_MMC2_BASE 0x480b4000
#define OMAP3_MMC3_BASE 0x480ad000
+#define OMAP4_MMC4_BASE 0x480d1000
+#define OMAP4_MMC5_BASE 0x480d5000
+#define OMAP4_MMC_REG_OFFSET 0x100
+#define HSMMC5 (1 << 4)
+#define HSMMC4 (1 << 3)
#define HSMMC3 (1 << 2)
#define HSMMC2 (1 << 1)
#define HSMMC1 (1 << 0)
Index: kernel-omap4-base/drivers/mmc/host/Kconfig
===================================================================
--- kernel-omap4-base.orig/drivers/mmc/host/Kconfig
+++ kernel-omap4-base/drivers/mmc/host/Kconfig
@@ -132,11 +132,11 @@ config MMC_OMAP

config MMC_OMAP_HS
tristate "TI OMAP High Speed Multimedia Card Interface support"
- depends on ARCH_OMAP2430 || ARCH_OMAP3
+ depends on ARCH_OMAP2430 || ARCH_OMAP3 || ARCH_OMAP4
help
This selects the TI OMAP High Speed Multimedia card Interface.
- If you have an OMAP2430 or OMAP3 board with a Multimedia Card slot,
- say Y or M here.
+ If you have an OMAP2430 or OMAP3 board or OMAP4 board with a
+ Multimedia Card slot, say Y or M here.

If unsure, say N.

Index: kernel-omap4-base/drivers/mmc/host/omap_hsmmc.c
===================================================================
--- kernel-omap4-base.orig/drivers/mmc/host/omap_hsmmc.c
+++ kernel-omap4-base/drivers/mmc/host/omap_hsmmc.c
@@ -101,6 +101,8 @@
#define OMAP_MMC1_DEVID 0
#define OMAP_MMC2_DEVID 1
#define OMAP_MMC3_DEVID 2
+#define OMAP_MMC4_DEVID 3
+#define OMAP_MMC5_DEVID 4

#define MMC_TIMEOUT_MS 20
#define OMAP_MMC_MASTER_CLOCK 96000000
@@ -1096,6 +1098,14 @@ static int __init omap_mmc_probe(struct
host->dma_line_tx = OMAP34XX_DMA_MMC3_TX;
host->dma_line_rx = OMAP34XX_DMA_MMC3_RX;
break;
+ case OMAP_MMC4_DEVID:
+ host->dma_line_tx = OMAP44XX_DMA_MMC4_TX;
+ host->dma_line_rx = OMAP44XX_DMA_MMC4_RX;
+ break;
+ case OMAP_MMC5_DEVID:
+ host->dma_line_tx = OMAP44XX_DMA_MMC5_TX;
+ host->dma_line_rx = OMAP44XX_DMA_MMC5_RX;
+ break;
default:
dev_err(mmc_dev(host->mmc), "Invalid MMC id\n");
goto err_irq;

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Next message: Ed Cashin: "Re: [PATCH 0/1] aoe: ensure we initialise the request_queue correctly"
Previous message: Maciej Rutecki: "[2.6.31-rc8] Problem with detect USB devices"
In reply to: Madhusudhan: "RE: [PATCH] OMAP4: MMC driver support on OMAP4"
Next in thread: Madhusudhan: "RE: [PATCH] OMAP4: MMC driver support on OMAP4"
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