diff mbox

[09.5/16] mmc: omap: Remove cpu_is_omap usage from the driver

Message ID 20121005180840.GN3874@atomide.com (mailing list archive)
State New, archived
Headers show

Commit Message

Tony Lindgren Oct. 5, 2012, 6:08 p.m. UTC
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 <cjb@laptop.org>
Cc: Venkatraman S <svenkatr@ti.com>
Cc: linux-mmc@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>

---

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.

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Comments

Chris Ball Oct. 5, 2012, 6:23 p.m. UTC | #1
Hi Tony,

On Fri, Oct 05 2012, Tony Lindgren wrote:
> 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 <cjb@laptop.org>
> Cc: Venkatraman S <svenkatr@ti.com>
> Cc: linux-mmc@vger.kernel.org
> Signed-off-by: Tony Lindgren <tony@atomide.com>
>
> ---
>
> 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.

Thanks, sounds good.

Acked-by: Chris Ball <cjb@laptop.org>

- Chris.
Tony Lindgren Oct. 16, 2012, 9:02 p.m. UTC | #2
* Chris Ball <cjb@laptop.org> [121005 11:24]:
> On Fri, Oct 05 2012, Tony Lindgren wrote:
> >
> > 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.
> 
> Thanks, sounds good.

Chris, I've now pushed out branch omap-for-v3.8/cleanup-headers-mmc
based on -rc1. The branch is located at:

git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git

It contains two omap MMC related patches that you can also merge
into the MMC tree if needed as now include plat/mmc.h is gone for
omaps.

Regards,

Tony
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diff mbox

Patch

--- 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) */