- This moves the dma line population from omap_hsmmc.c to plat-omap/devices.c
- This is done to keep platform specific code inside the platform directory
rather than the host driver
- This makes the porting work across OMAP platforms easier
Signed-off-by: Madhvapathi Sriram <sriram.m@xxxxxx>
---
arch/arm/plat-omap/devices.c | 49 ++++++++++++++++++++++++++++++++++++++++-
drivers/mmc/host/omap_hsmmc.c | 35 +++++++---------------------
2 files changed, 57 insertions(+), 27 deletions(-)
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index 95677d1..a62b148 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -30,6 +30,7 @@
#include <plat/mcbsp.h>
#include <plat/dsp_common.h>
#include <plat/omap44xx.h>
+#include <plat/dma.h>
#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
@@ -232,7 +233,7 @@ static inline void omap_init_mcpdm(void) {}
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
-#define OMAP_MMC_NR_RES 2
+#define OMAP_MMC_NR_RES 4
/*
* Register MMC devices. Called from mach-omap1 and mach-omap2 device init.
@@ -255,6 +256,52 @@ int __init omap_mmc_add(const char *name, int id, unsigned long base,
res[0].flags = IORESOURCE_MEM;
res[1].start = res[1].end = irq;
res[1].flags = IORESOURCE_IRQ;
+ /* Populate DMA lines based on the instance used. Rx first,Tx next*/
+ switch (id) {
+ case 0:
+ res[2].start = OMAP24XX_DMA_MMC1_RX;
+ res[2].end = OMAP24XX_DMA_MMC1_RX;
+ res[2].flags = IORESOURCE_DMA;
+ res[3].start = OMAP24XX_DMA_MMC1_TX;
+ res[3].end = OMAP24XX_DMA_MMC1_TX;
+ res[3].flags = IORESOURCE_DMA;
+ break;
+ case 1:
+ res[2].start = OMAP24XX_DMA_MMC2_RX;
+ res[2].end = OMAP24XX_DMA_MMC2_RX;
+ res[2].flags = IORESOURCE_DMA;
+ res[3].start = OMAP24XX_DMA_MMC2_TX;
+ res[3].end = OMAP24XX_DMA_MMC2_TX;
+ res[3].flags = IORESOURCE_DMA;
+ break;
+ case 2:
+ res[2].start = OMAP34XX_DMA_MMC3_RX;
+ res[2].end = OMAP34XX_DMA_MMC3_RX;
+ res[2].flags = IORESOURCE_DMA;
+ res[3].start = OMAP34XX_DMA_MMC3_TX;
+ res[3].end = OMAP34XX_DMA_MMC3_TX;
+ res[3].flags = IORESOURCE_DMA;
+ break;
+ case 3:
+ res[2].start = OMAP44XX_DMA_MMC4_RX;
+ res[2].end = OMAP44XX_DMA_MMC4_RX;
+ res[2].flags = IORESOURCE_DMA;
+ res[3].start = OMAP44XX_DMA_MMC4_TX;
+ res[3].end = OMAP44XX_DMA_MMC4_TX;
+ res[3].flags = IORESOURCE_DMA;
+ break;
+ case 4:
+ res[2].start = OMAP44XX_DMA_MMC5_RX;
+ res[2].end = OMAP44XX_DMA_MMC5_RX;
+ res[2].flags = IORESOURCE_DMA;
+ res[3].start = OMAP44XX_DMA_MMC5_TX;
+ res[3].end = OMAP44XX_DMA_MMC5_TX;
+ res[3].flags = IORESOURCE_DMA;
+ break;
+ default:
+ ret = -ENODEV;
+ goto fail;
+ }
ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
if (ret == 0)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index e9caf69..61d30ab 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -2096,32 +2096,15 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
omap_hsmmc_conf_bus_power(host);
- /* Select DMA lines */
- switch (host->id) {
- case OMAP_MMC1_DEVID:
- host->dma_line_tx = OMAP24XX_DMA_MMC1_TX;
- host->dma_line_rx = OMAP24XX_DMA_MMC1_RX;
- break;
- case OMAP_MMC2_DEVID:
- host->dma_line_tx = OMAP24XX_DMA_MMC2_TX;
- host->dma_line_rx = OMAP24XX_DMA_MMC2_RX;
- break;
- case OMAP_MMC3_DEVID:
- 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;
- }
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!res)
+ goto err1;
+ host->dma_line_rx = res->start;
+
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (!res)
+ goto err1;
+ host->dma_line_tx = res->start;
/* Request IRQ for MMC operations */
ret = request_irq(host->irq, omap_hsmmc_irq, IRQF_DISABLED,
--
1.5.6
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