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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-01-28 13:21:38 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-01-28 13:21:38 +0000
commit0ff66f0c7a5f1f4f5a0d91341b6f71fd2a49f0fa (patch)
tree7c4d74a76bf4f49e87d769c236fdd2db77fb241d /drivers/mmc/host
parentc00d4ffdbace1bdc9fdd888e4ba6d207ffa3b679 (diff)
parent4e4fc05a2b6e7bd2e0facd96e0c18dceb34d9349 (diff)
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.c61
-rw-r--r--drivers/mmc/host/pxamci.h2
2 files changed, 46 insertions, 17 deletions
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 1654a333034..1ea8482037b 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 748c7706f23..f6c2e2fcce3 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