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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-01-28 13:21:38 +0000 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-01-28 13:21:38 +0000 |
commit | 0ff66f0c7a5f1f4f5a0d91341b6f71fd2a49f0fa (patch) | |
tree | 7c4d74a76bf4f49e87d769c236fdd2db77fb241d /drivers/mmc/host | |
parent | c00d4ffdbace1bdc9fdd888e4ba6d207ffa3b679 (diff) | |
parent | 4e4fc05a2b6e7bd2e0facd96e0c18dceb34d9349 (diff) | |
download | kernel_samsung_smdk4412-0ff66f0c7a5f1f4f5a0d91341b6f71fd2a49f0fa.zip kernel_samsung_smdk4412-0ff66f0c7a5f1f4f5a0d91341b6f71fd2a49f0fa.tar.gz kernel_samsung_smdk4412-0ff66f0c7a5f1f4f5a0d91341b6f71fd2a49f0fa.tar.bz2 |
Merge branch 'pxa-plat' into devel
* pxa-plat: (53 commits)
[ARM] 4762/1: Basic support for Toradex Colibri module
[ARM] pxa: fix mci_init functions returning -1
[ARM] 4737/1: Refactor corgi_lcd to improve readability + bugfix
[ARM] 4747/1: pcm027: support for pcm990 baseboard for phyCORE-PXA270
[ARM] 4746/1: pcm027: network support for phyCORE-PXA270
[ARM] 4745/1: pcm027: default configuration
[ARM] 4744/1: pcm027: add support for phyCORE-PXA270 CPU module
[NET] smc91x: Make smc91x use IRQ resource trigger flags
[ARM] pxa: add default config for littleton
[ARM] pxa: add basic support for Littleton (PXA3xx Form Factor Platform)
[ARM] 4664/1: Add basic support for HTC Magician PDA phones
[ARM] 4649/1: Base support for pxa-based Toshiba e-series PDAs.
[ARM] pxa: skip registers saving/restoring if entering standby mode
[ARM] pxa: fix PXA27x resume
[ARM] pxa: Avoid fiddling with CKEN register on suspend
[ARM] pxa: Add PXA3 standby code hooked into the IRQ wake scheme
[ARM] pxa: Add zylonite MFP wakeup configurations
[ARM] pxa: program MFPs for low power mode when suspending
[ARM] pxa: make MFP configuration processor independent
[ARM] pxa: remove un-used pxa3xx_mfp_set_xxx() functions
...
Conflicts:
arch/arm/mach-pxa/ssp.c
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/mmc/host')
-rw-r--r-- | drivers/mmc/host/pxamci.c | 61 | ||||
-rw-r--r-- | drivers/mmc/host/pxamci.h | 2 |
2 files changed, 46 insertions, 17 deletions
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 1654a33..1ea8482 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -65,6 +65,8 @@ struct pxamci_host { unsigned int dma_len; unsigned int dma_dir; + unsigned int dma_drcmrrx; + unsigned int dma_drcmrtx; }; static void pxamci_stop_clock(struct pxamci_host *host) @@ -131,13 +133,13 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data) if (data->flags & MMC_DATA_READ) { host->dma_dir = DMA_FROM_DEVICE; dcmd = DCMD_INCTRGADDR | DCMD_FLOWTRG; - DRCMRTXMMC = 0; - DRCMRRXMMC = host->dma | DRCMR_MAPVLD; + DRCMR(host->dma_drcmrtx) = 0; + DRCMR(host->dma_drcmrrx) = host->dma | DRCMR_MAPVLD; } else { host->dma_dir = DMA_TO_DEVICE; dcmd = DCMD_INCSRCADDR | DCMD_FLOWSRC; - DRCMRRXMMC = 0; - DRCMRTXMMC = host->dma | DRCMR_MAPVLD; + DRCMR(host->dma_drcmrrx) = 0; + DRCMR(host->dma_drcmrtx) = host->dma | DRCMR_MAPVLD; } dcmd |= DCMD_BURST32 | DCMD_WIDTH1; @@ -375,14 +377,23 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) if (host->clkrt == CLKRT_OFF) clk_enable(host->clk); - /* - * clk might result in a lower divisor than we - * desire. check for that condition and adjust - * as appropriate. - */ - if (rate / clk > ios->clock) - clk <<= 1; - host->clkrt = fls(clk) - 1; + if (ios->clock == 26000000) { + /* to support 26MHz on pxa300/pxa310 */ + host->clkrt = 7; + } else { + /* to handle (19.5MHz, 26MHz) */ + if (!clk) + clk = 1; + + /* + * clk might result in a lower divisor than we + * desire. check for that condition and adjust + * as appropriate. + */ + if (rate / clk > ios->clock) + clk <<= 1; + host->clkrt = fls(clk) - 1; + } /* * we write clkrt on the next command @@ -459,7 +470,7 @@ static int pxamci_probe(struct platform_device *pdev) { struct mmc_host *mmc; struct pxamci_host *host = NULL; - struct resource *r; + struct resource *r, *dmarx, *dmatx; int ret, irq; r = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -519,7 +530,8 @@ static int pxamci_probe(struct platform_device *pdev) * Calculate minimum clock rate, rounding up. */ mmc->f_min = (host->clkrate + 63) / 64; - mmc->f_max = host->clkrate; + mmc->f_max = (cpu_is_pxa300() || cpu_is_pxa310()) ? 26000000 + : host->clkrate; mmc->ocr_avail = host->pdata ? host->pdata->ocr_mask : @@ -529,6 +541,9 @@ static int pxamci_probe(struct platform_device *pdev) if (!cpu_is_pxa21x() && !cpu_is_pxa25x()) { mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ; host->cmdat |= CMDAT_SDIO_INT_EN; + if (cpu_is_pxa300() || cpu_is_pxa310()) + mmc->caps |= MMC_CAP_MMC_HIGHSPEED | + MMC_CAP_SD_HIGHSPEED; } host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL); @@ -570,6 +585,20 @@ static int pxamci_probe(struct platform_device *pdev) platform_set_drvdata(pdev, mmc); + dmarx = platform_get_resource(pdev, IORESOURCE_DMA, 0); + if (!dmarx) { + ret = -ENXIO; + goto out; + } + host->dma_drcmrrx = dmarx->start; + + dmatx = platform_get_resource(pdev, IORESOURCE_DMA, 1); + if (!dmatx) { + ret = -ENXIO; + goto out; + } + host->dma_drcmrtx = dmatx->start; + if (host->pdata && host->pdata->init) host->pdata->init(&pdev->dev, pxamci_detect_irq, mmc); @@ -613,8 +642,8 @@ static int pxamci_remove(struct platform_device *pdev) END_CMD_RES|PRG_DONE|DATA_TRAN_DONE, host->base + MMC_I_MASK); - DRCMRRXMMC = 0; - DRCMRTXMMC = 0; + DRCMR(host->dma_drcmrrx) = 0; + DRCMR(host->dma_drcmrtx) = 0; free_irq(host->irq, host); pxa_free_dma(host->dma); diff --git a/drivers/mmc/host/pxamci.h b/drivers/mmc/host/pxamci.h index 748c770..f6c2e2f 100644 --- a/drivers/mmc/host/pxamci.h +++ b/drivers/mmc/host/pxamci.h @@ -68,7 +68,7 @@ #define PRG_DONE (1 << 1) #define DATA_TRAN_DONE (1 << 0) -#ifdef CONFIG_PXA27x +#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) #define MMC_I_MASK_ALL 0x00001fff #else #define MMC_I_MASK_ALL 0x0000007f |