This is needed for the ARM common zImage support. We can use the existing slot features to pass omap1 specific options to the driver. For omap2 we don't want to pass anything new as that will be eventually moved to use device tree based init.
Note that this patch depends on earlier patch that moves plat/mmc.h into include/linux/platform_data. Cc: Chris Ball <[email protected]> Cc: Venkatraman S <[email protected]> Cc: [email protected] Signed-off-by: Tony Lindgren <[email protected]> --- Chris, I can set up a minimal immutable branch with omap header changes that you can also pull into MMC tree if these two MMC patches look ackable to you. --- a/arch/arm/mach-omap1/devices.c +++ b/arch/arm/mach-omap1/devices.c @@ -177,6 +177,13 @@ static int __init omap_mmc_add(const char *name, int id, unsigned long base, res[3].name = "tx"; res[3].flags = IORESOURCE_DMA; + if (cpu_is_omap7xx()) + data->slots[0].features = MMC_OMAP7XX; + if (cpu_is_omap15xx()) + data->slots[0].features = MMC_OMAP15XX; + if (cpu_is_omap16xx()) + data->slots[0].features = MMC_OMAP16XX; + ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res)); if (ret == 0) ret = platform_device_add_data(pdev, data, sizeof(*data)); --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -30,7 +30,6 @@ #include <linux/slab.h> #include <linux/platform_data/mmc-omap.h> -#include <plat/cpu.h> #include <plat/dma.h> #define OMAP_MMC_REG_CMD 0x00 @@ -73,6 +72,13 @@ #define OMAP_MMC_STAT_CARD_BUSY (1 << 2) #define OMAP_MMC_STAT_END_OF_CMD (1 << 0) +#define mmc_omap7xx() (host->features & MMC_OMAP7XX) +#define mmc_omap15xx() (host->features & MMC_OMAP15XX) +#define mmc_omap16xx() (host->features & MMC_OMAP16XX) +#define MMC_OMAP1_MASK (MMC_OMAP7XXX | MMC_OMAP15XX | MMC_OMAP16XX) +#define mmc_omap1() (host->features & MMC_OMAP1_MASK) +#define mmc_omap2() (!mmc_omap1) + #define OMAP_MMC_REG(host, reg) (OMAP_MMC_REG_##reg << (host)->reg_shift) #define OMAP_MMC_READ(host, reg) __raw_readw((host)->virt_base + OMAP_MMC_REG(host, reg)) #define OMAP_MMC_WRITE(host, reg, val) __raw_writew((val), (host)->virt_base + OMAP_MMC_REG(host, reg)) @@ -148,6 +154,7 @@ struct mmc_omap_host { u32 buffer_bytes_left; u32 total_bytes_left; + unsigned features; unsigned use_dma:1; unsigned brs_received:1, dma_done:1; unsigned dma_in_use:1; @@ -989,7 +996,7 @@ mmc_omap_prepare_data(struct mmc_omap_host *host, struct mmc_request *req) * blocksize is at least that large. Blocksize is * usually 512 bytes; but not for some SD reads. */ - burst = cpu_is_omap15xx() ? 32 : 64; + burst = mmc_omap15xx() ? 32 : 64; if (burst > data->blksz) burst = data->blksz; @@ -1105,8 +1112,7 @@ static void mmc_omap_set_power(struct mmc_omap_slot *slot, int power_on, if (slot->pdata->set_power != NULL) slot->pdata->set_power(mmc_dev(slot->mmc), slot->id, power_on, vdd); - - if (cpu_is_omap24xx()) { + if (mmc_omap2()) { u16 w; if (power_on) { @@ -1240,7 +1246,7 @@ static int __devinit mmc_omap_new_slot(struct mmc_omap_host *host, int id) mmc->ops = &mmc_omap_ops; mmc->f_min = 400000; - if (cpu_class_is_omap2()) + if (mmc_omap2()) mmc->f_max = 48000000; else mmc->f_max = 24000000; @@ -1360,6 +1366,7 @@ static int __devinit mmc_omap_probe(struct platform_device *pdev) init_waitqueue_head(&host->slot_wq); host->pdata = pdata; + host->features = host->pdata->slots[0].features; host->dev = &pdev->dev; platform_set_drvdata(pdev, host); @@ -1392,7 +1399,7 @@ static int __devinit mmc_omap_probe(struct platform_device *pdev) host->dma_tx_burst = -1; host->dma_rx_burst = -1; - if (cpu_is_omap24xx()) + if (mmc_omap2()) sig = host->id == 0 ? OMAP24XX_DMA_MMC1_TX : OMAP24XX_DMA_MMC2_TX; else sig = host->id == 0 ? OMAP_DMA_MMC_TX : OMAP_DMA_MMC2_TX; @@ -1408,7 +1415,7 @@ static int __devinit mmc_omap_probe(struct platform_device *pdev) dev_warn(host->dev, "unable to obtain TX DMA engine channel %u\n", sig); #endif - if (cpu_is_omap24xx()) + if (mmc_omap2()) sig = host->id == 0 ? OMAP24XX_DMA_MMC1_RX : OMAP24XX_DMA_MMC2_RX; else sig = host->id == 0 ? OMAP_DMA_MMC_RX : OMAP_DMA_MMC2_RX; @@ -1436,7 +1443,7 @@ static int __devinit mmc_omap_probe(struct platform_device *pdev) } host->nr_slots = pdata->nr_slots; - host->reg_shift = (cpu_is_omap7xx() ? 1 : 2); + host->reg_shift = (mmc_omap7xx() ? 1 : 2); host->mmc_omap_wq = alloc_workqueue("mmc_omap", 0, 0); if (!host->mmc_omap_wq) --- a/include/linux/platform_data/mmc-omap.h +++ b/include/linux/platform_data/mmc-omap.h @@ -107,6 +107,9 @@ struct omap_mmc_platform_data { /* we can put the features above into this variable */ #define HSMMC_HAS_PBIAS (1 << 0) #define HSMMC_HAS_UPDATED_RESET (1 << 1) +#define MMC_OMAP7XX (1 << 2) +#define MMC_OMAP15XX (1 << 3) +#define MMC_OMAP16XX (1 << 4) unsigned features; int switch_pin; /* gpio (card detect) */ -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
