omap4: mmc driver support on OMAP4

Add basic support for all 5 MMC controllers on OMAP4.

This patch doesn't include mmc-regulator support

Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Cc: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index a2e9156..92009a4 100644 (file)
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -397,7 +397,7 @@ static inline void omap_init_sha1_md5(void) { }
 
 /*-------------------------------------------------------------------------*/
 
-#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");
@@ -581,11 +594,23 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
                        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;
                }
@@ -593,8 +618,15 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
                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]);

diff --git a/arch/arm/plat-omap/include/mach/irqs.h b/arch/arm/plat-omap/include/mach/irqs.h
index fb7cb77..28a1650 100644 (file)
--- a/arch/arm/plat-omap/include/mach/irqs.h
+++ b/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

diff --git a/arch/arm/plat-omap/include/mach/mmc.h b/arch/arm/plat-omap/include/mach/mmc.h
index 9390297..7229b95 100644 (file)
--- a/arch/arm/plat-omap/include/mach/mmc.h
+++ b/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)

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 6f20eb9..7cb057f 100644 (file)
--- a/drivers/mmc/host/Kconfig
+++ b/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.
 

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index a4dd43f..4487cc0 100644 (file)
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -109,6 +109,8 @@
 #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
@@ -1758,6 +1760,14 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
                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;