From 7ff879dbcd2083c95933a56bce65ae45ecab3f35 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 26 Jun 2006 16:16:15 -0700 Subject: ARM: OMAP: Fix DMA channel irq handling for omap24xx - DMA CSR register is cleared by reading on omap1, but on omap2 it is cleard by writing to it. - DMA TOUT interrupt does not exist on omap24xx, rename it - Add SECURE and MISALIGNED errors by default for omap24xx - Add defines for external DMA request lines Signed-off-by: Tony Lindgren --- drivers/mmc/omap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mmc') diff --git a/drivers/mmc/omap.c b/drivers/mmc/omap.c index c25244b3657b..4aa1e56235c9 100644 --- a/drivers/mmc/omap.c +++ b/drivers/mmc/omap.c @@ -663,7 +663,7 @@ static void mmc_omap_dma_cb(int lch, u16 ch_status, void *data) return; } /* FIXME: We really should do something to _handle_ the errors */ - if (ch_status & OMAP_DMA_TOUT_IRQ) { + if (ch_status & OMAP1_DMA_TOUT_IRQ) { dev_err(mmc_dev(host->mmc),"DMA timeout\n"); return; } -- cgit v1.2.3-59-g8ed1b From ce9c1a8388e16f2a158491ceb5c58a6101b905f6 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Sat, 1 Jul 2006 19:56:44 +0100 Subject: [ARM] 3678/1: MMC: Make OMAP MMC work Patch from Tony Lindgren This patch makes OMAP MMC work again: - Fix compile errors - Do not ioremap base as it is already statically mapped - Clean-up platform device handling - Fix compile warnings Signed-off-by: Tony Lindgren Signed-off-by: Russell King --- arch/arm/plat-omap/devices.c | 8 ++++---- drivers/mmc/omap.c | 41 +++++++++++++++++++---------------------- 2 files changed, 23 insertions(+), 26 deletions(-) (limited to 'drivers/mmc') diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c index ee15b4089127..8bff56673831 100644 --- a/arch/arm/plat-omap/devices.c +++ b/arch/arm/plat-omap/devices.c @@ -162,8 +162,8 @@ static u64 mmc1_dmamask = 0xffffffff; static struct resource mmc1_resources[] = { { - .start = IO_ADDRESS(OMAP_MMC1_BASE), - .end = IO_ADDRESS(OMAP_MMC1_BASE) + 0x7f, + .start = OMAP_MMC1_BASE, + .end = OMAP_MMC1_BASE + 0x7f, .flags = IORESOURCE_MEM, }, { @@ -191,8 +191,8 @@ static u64 mmc2_dmamask = 0xffffffff; static struct resource mmc2_resources[] = { { - .start = IO_ADDRESS(OMAP_MMC2_BASE), - .end = IO_ADDRESS(OMAP_MMC2_BASE) + 0x7f, + .start = OMAP_MMC2_BASE, + .end = OMAP_MMC2_BASE + 0x7f, .flags = IORESOURCE_MEM, }, { diff --git a/drivers/mmc/omap.c b/drivers/mmc/omap.c index 4aa1e56235c9..2b7996da875b 100644 --- a/drivers/mmc/omap.c +++ b/drivers/mmc/omap.c @@ -61,6 +61,7 @@ struct mmc_omap_host { unsigned char id; /* 16xx chips have 2 MMC blocks */ struct clk * iclk; struct clk * fclk; + struct resource *res; void __iomem *base; int irq; unsigned char bus_mode; @@ -340,8 +341,6 @@ static void mmc_omap_xfer_data(struct mmc_omap_host *host, int write) { int n; - void __iomem *reg; - u16 *p; if (host->buffer_bytes_left == 0) { host->sg_idx++; @@ -658,8 +657,8 @@ static void mmc_omap_dma_cb(int lch, u16 ch_status, void *data) struct mmc_data *mmcdat = host->data; if (unlikely(host->dma_ch < 0)) { - dev_err(mmc_dev(host->mmc), "DMA callback while DMA not - enabled\n"); + dev_err(mmc_dev(host->mmc), + "DMA callback while DMA not enabled\n"); return; } /* FIXME: We really should do something to _handle_ the errors */ @@ -973,20 +972,20 @@ static int __init mmc_omap_probe(struct platform_device *pdev) struct omap_mmc_conf *minfo = pdev->dev.platform_data; struct mmc_host *mmc; struct mmc_omap_host *host = NULL; + struct resource *r; int ret = 0; + int irq; - if (platform_get_resource(pdev, IORESOURCE_MEM, 0) || - platform_get_irq(pdev, IORESOURCE_IRQ, 0)) { - dev_err(&pdev->dev, "mmc_omap_probe: invalid resource type\n"); - return -ENODEV; - } + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + irq = platform_get_irq(pdev, 0); + if (!r || irq < 0) + return -ENXIO; - if (!request_mem_region(pdev->resource[0].start, + r = request_mem_region(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start + 1, - pdev->name)) { - dev_dbg(&pdev->dev, "request_mem_region failed\n"); + pdev->name); + if (!r) return -EBUSY; - } mmc = mmc_alloc_host(sizeof(struct mmc_omap_host), &pdev->dev); if (!mmc) { @@ -1003,6 +1002,8 @@ static int __init mmc_omap_probe(struct platform_device *pdev) host->dma_timer.data = (unsigned long) host; host->id = pdev->id; + host->res = r; + host->irq = irq; if (cpu_is_omap24xx()) { host->iclk = clk_get(&pdev->dev, "mmc_ick"); @@ -1032,13 +1033,9 @@ static int __init mmc_omap_probe(struct platform_device *pdev) host->dma_ch = -1; host->irq = pdev->resource[1].start; - host->base = ioremap(pdev->res.start, SZ_4K); - if (!host->base) { - ret = -ENOMEM; - goto out; - } + host->base = (void __iomem*)IO_ADDRESS(r->start); - if (minfo->wire4) + if (minfo->wire4) mmc->caps |= MMC_CAP_4_BIT_DATA; mmc->ops = &mmc_omap_ops; @@ -1057,8 +1054,8 @@ static int __init mmc_omap_probe(struct platform_device *pdev) if (host->power_pin >= 0) { if ((ret = omap_request_gpio(host->power_pin)) != 0) { - dev_err(mmc_dev(host->mmc), "Unable to get GPIO - pin for MMC power\n"); + dev_err(mmc_dev(host->mmc), + "Unable to get GPIO pin for MMC power\n"); goto out; } omap_set_gpio_direction(host->power_pin, 0); @@ -1100,7 +1097,7 @@ static int __init mmc_omap_probe(struct platform_device *pdev) device_remove_file(&pdev->dev, &dev_attr_cover_switch); } if (ret) { - dev_wan(mmc_dev(host->mmc), "Unable to create sysfs attributes\n"); + dev_warn(mmc_dev(host->mmc), "Unable to create sysfs attributes\n"); free_irq(OMAP_GPIO_IRQ(host->switch_pin), host); omap_free_gpio(host->switch_pin); host->switch_pin = -1; -- cgit v1.2.3-59-g8ed1b