[U-Boot] [PATCH] omap3: mmc: mmc2 support

[U-Boot] [PATCH] omap3: mmc: mmc2 support

[Minkyu Kang]

There are 3 MMC/SD/SDIO host controllers inside the device.
This patch will support mmc2 and mmc3(mmc3 have not tested)

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---
 drivers/mmc/omap3_mmc.c                   |   74 ++++++++++++++++++++++++-----
 include/asm-arm/arch-omap3/mmc_host_def.h |   10 +++-
 include/asm-arm/arch-omap3/omap3.h        |    3 +
 3 files changed, 73 insertions(+), 14 deletions(-)

diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c
index e90db7e..934caff 100644
--- a/drivers/mmc/omap3_mmc.c
+++ b/drivers/mmc/omap3_mmc.c
@@ -51,7 +51,8 @@ const unsigned short mmc_transspeed_val[15][4] = {
 
 mmc_card_data cur_card_data;
 static block_dev_desc_t mmc_blk_dev;
-static hsmmc_t *mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE;
+static hsmmc_t *mmc_base;
+static int curr_device = -1;
 
 block_dev_desc_t *mmc_get_dev(int dev)
 {
@@ -62,10 +63,21 @@ void twl4030_mmc_config(void)
 {
 	unsigned char data;
 
-	data = DEV_GRP_P1;
-	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
-	data = VMMC1_VSEL_30;
-	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
+	switch (curr_device) {
+	case 1:
+		data = DEV_GRP_P1;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
+		data = VMMC1_VSEL_30;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
+		break;
+	case 2:
+	case 3:
+		data = DEV_GRP_P1;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEV_GRP, 1, &data, 1);
+		data = VMMC2_VSEL_185;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEDICATED, 1, &data, 1);
+		break;
+	}
 }
 
 unsigned char mmc_board_init(void)
@@ -74,12 +86,21 @@ unsigned char mmc_board_init(void)
 
 	twl4030_mmc_config();
 
-	writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
-		PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
-		&t2_base->pbias_lite);
+	switch (curr_device) {
+	case 1:
+		writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
+			PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
+			&t2_base->pbias_lite);
 
-	writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
-		&t2_base->devconf0);
+		writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
+			&t2_base->devconf0);
+		break;
+	case 2:
+	case 3:
+		writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
+			&t2_base->devconf1);
+		break;
+	}
 
 	return 1;
 }
@@ -525,8 +546,37 @@ unsigned long mmc_bread(int dev_num, unsigned long blknr, lbaint_t blkcnt,
 	return 1;
 }
 
-int mmc_legacy_init(int verbose)
+int mmc_set_dev(int dev)
+{
+	if (dev < 0) {
+		printf("unknwon device\n");
+		return 1;
+	} else {
+		switch (dev) {
+		case 1:
+			mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE_MMC1;
+			break;
+		case 2:
+			mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE_MMC2;
+			break;
+		case 3:
+			mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE_MMC3;
+			break;
+		default:
+			printf("unknwon device\n");
+			return 1;
+		}
+		curr_device = dev;
+	}
+
+	return 0;
+}
+
+int mmc_legacy_init(int dev)
 {
+	if (mmc_set_dev(dev) != 0)
+		return 1;
+
 	if (configure_mmc(&cur_card_data) != 1)
 		return 1;
 
@@ -538,7 +588,7 @@ int mmc_legacy_init(int verbose)
 
 	/* FIXME fill in the correct size (is set to 32MByte) */
 	mmc_blk_dev.blksz = MMCSD_SECTOR_SIZE;
-	mmc_blk_dev.lba = 0x10000;
+	mmc_blk_dev.lba = cur_card_data.size;
 	mmc_blk_dev.removable = 0;
 	mmc_blk_dev.block_read = mmc_bread;
 
diff --git a/include/asm-arm/arch-omap3/mmc_host_def.h b/include/asm-arm/arch-omap3/mmc_host_def.h
index aa751c9..8b234ef 100644
--- a/include/asm-arm/arch-omap3/mmc_host_def.h
+++ b/include/asm-arm/arch-omap3/mmc_host_def.h
@@ -31,7 +31,9 @@
 typedef struct t2 {
 	unsigned char res1[0x274];
 	unsigned int devconf0;		/* 0x274 */
-	unsigned char res2[0x2A8];
+	unsigned char res2[0x60];
+	unsigned int devconf1;		/* 0x2D8 */
+	unsigned char res3[0x244];
 	unsigned int pbias_lite;	/* 0x520 */
 } t2_t;
 
@@ -41,10 +43,14 @@ typedef struct t2 {
 #define PBIASSPEEDCTRL0			(1 << 2)
 #define PBIASLITEPWRDNZ1		(1 << 9)
 
+#define MMCSDIO2ADPCLKISEL		(1 << 6)
+
 /*
  * OMAP HSMMC register definitions
  */
-#define OMAP_HSMMC_BASE		0x4809C000
+#define OMAP_HSMMC_BASE_MMC1	0x4809C000
+#define OMAP_HSMMC_BASE_MMC2	0x480B4000
+#define OMAP_HSMMC_BASE_MMC3	0x480AD000
 
 typedef struct hsmmc {
 	unsigned char res1[0x10];
diff --git a/include/asm-arm/arch-omap3/omap3.h b/include/asm-arm/arch-omap3/omap3.h
index 8c9656f..b5b5def 100644
--- a/include/asm-arm/arch-omap3/omap3.h
+++ b/include/asm-arm/arch-omap3/omap3.h
@@ -206,6 +206,8 @@ typedef struct gpio {
 #define VAUX3_DEDICATED		0x7D
 #define VMMC1_DEV_GRP		0x82
 #define VMMC1_DEDICATED		0x85
+#define VMMC2_DEV_GRP		0x86
+#define VMMC2_DEDICATED		0x89
 #define VPLL2_DEV_GRP		0x8E
 #define VPLL2_DEDICATED		0x91
 #define VDAC_DEV_GRP		0x96
@@ -219,5 +221,6 @@ typedef struct gpio {
 #define VPLL2_VSEL_18		0x05
 #define VDAC_VSEL_18		0x03
 #define VMMC1_VSEL_30		0x02
+#define VMMC2_VSEL_185		0x06
 
 #endif

[U-Boot] [PATCH] omap3: mmc: mmc2 support

[Jean-Christophe PLAGNIOL-VILLARD]

On 14:07 Sat 28 Mar     , Minkyu Kang wrote:
> There are 3 MMC/SD/SDIO host controllers inside the device.
> This patch will support mmc2 and mmc3(mmc3 have not tested)
> 
> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
> ---
>  drivers/mmc/omap3_mmc.c                   |   74 ++++++++++++++++++++++++-----
>  include/asm-arm/arch-omap3/mmc_host_def.h |   10 +++-
>  include/asm-arm/arch-omap3/omap3.h        |    3 +
>  3 files changed, 73 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c
> index e90db7e..934caff 100644
> --- a/drivers/mmc/omap3_mmc.c
> +++ b/drivers/mmc/omap3_mmc.c
> @@ -51,7 +51,8 @@ const unsigned short mmc_transspeed_val[15][4] = {
>  
>  mmc_card_data cur_card_data;
>  static block_dev_desc_t mmc_blk_dev;
> -static hsmmc_t *mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE;
> +static hsmmc_t *mmc_base;
> +static int curr_device = -1;
>  
>  block_dev_desc_t *mmc_get_dev(int dev)
>  {
> @@ -62,10 +63,21 @@ void twl4030_mmc_config(void)
>  {
>  	unsigned char data;
>  
> -	data = DEV_GRP_P1;
> -	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
> -	data = VMMC1_VSEL_30;
> -	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
> +	switch (curr_device) {
> +	case 1:
> +		data = DEV_GRP_P1;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
> +		data = VMMC1_VSEL_30;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
> +		break;
> +	case 2:
> +	case 3:
> +		data = DEV_GRP_P1;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEV_GRP, 1, &data, 1);
> +		data = VMMC2_VSEL_185;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEDICATED, 1, &data, 1);
> +		break;
> +	}
>  }
>  
>  unsigned char mmc_board_init(void)
unsigned char?
why
> @@ -74,12 +86,21 @@ unsigned char mmc_board_init(void)
>  
>  	twl4030_mmc_config();
>  
> -	writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
> -		PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
> -		&t2_base->pbias_lite);
> +	switch (curr_device) {
> +	case 1:
> +		writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
> +			PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
> +			&t2_base->pbias_lite);
>  
> -	writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
> -		&t2_base->devconf0);
> +		writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
> +			&t2_base->devconf0);
> +		break;
> +	case 2:
> +	case 3:
> +		writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
> +			&t2_base->devconf1);
> +		break;
> +	}
please only active code when the user activate the mmcx support

how your driver will work it I want to have two mmc support at the sametime??
>  
>  	return 1;
>  }
> @@ -525,8 +546,37 @@ unsigned long mmc_bread(int dev_num, unsigned long blknr, lbaint_t blkcnt,
>  	return 1;
>  }
>  
> -int mmc_legacy_init(int verbose)
> +int mmc_set_dev(int dev)
> +{
> +	if (dev < 0) {
> +		printf("unknwon device\n");
> +		return 1;
no need already done in the switch
please remove
> +	} else {
> +		switch (dev) {
> +		case 1:
> +			mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE_MMC1;
> +			break;
> +		case 2:
> +			mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE_MMC2;
> +			break;
> +		case 3:
> +			mmc_base = (hsmmc_t *)OMAP_HSMMC_BASE_MMC3;
> +			break;
has precedently please activate it only when it's need
for each MMC slot
> +		default:
> +			printf("unknwon device\n");
> +			return 1;
> +		}
> +		curr_device = dev;
> +	}
> +
> +	return 0;
> +}
> +
> +int mmc_legacy_init(int dev)
>  {
> +	if (mmc_set_dev(dev) != 0)
> +		return 1;
> +
btw it will better to move to the new Framework
>  	if (configure_mmc(&cur_card_data) != 1)
>  		return 1;
>  
> @@ -538,7 +588,7 @@ int mmc_legacy_init(int verbose)
>  
>  	/* FIXME fill in the correct size (is set to 32MByte) */
>  	mmc_blk_dev.blksz = MMCSD_SECTOR_SIZE;
> -	mmc_blk_dev.lba = 0x10000;
> +	mmc_blk_dev.lba = cur_card_data.size;
>  	mmc_blk_dev.removable = 0;
>  	mmc_blk_dev.block_read = mmc_bread;
>  
> diff --git a/include/asm-arm/arch-omap3/mmc_host_def.h b/include/asm-arm/arch-omap3/mmc_host_def.h
> index aa751c9..8b234ef 100644
> --- a/include/asm-arm/arch-omap3/mmc_host_def.h
> +++ b/include/asm-arm/arch-omap3/mmc_host_def.h
> @@ -31,7 +31,9 @@
>  typedef struct t2 {
>  	unsigned char res1[0x274];
>  	unsigned int devconf0;		/* 0x274 */
> -	unsigned char res2[0x2A8];
> +	unsigned char res2[0x60];
> +	unsigned int devconf1;		/* 0x2D8 */
> +	unsigned char res3[0x244];
>  	unsigned int pbias_lite;	/* 0x520 */
>  } t2_t;
>  
> @@ -41,10 +43,14 @@ typedef struct t2 {
>  #define PBIASSPEEDCTRL0			(1 << 2)
>  #define PBIASLITEPWRDNZ1		(1 << 9)
>  
> +#define MMCSDIO2ADPCLKISEL		(1 << 6)
> +
>  /*
>   * OMAP HSMMC register definitions
>   */
> -#define OMAP_HSMMC_BASE		0x4809C000
> +#define OMAP_HSMMC_BASE_MMC1	0x4809C000
> +#define OMAP_HSMMC_BASE_MMC2	0x480B4000
> +#define OMAP_HSMMC_BASE_MMC3	0x480AD000
it's really a shame that TI does not make it in order and at the same shift
so we could do this
#define OMAP_HSMMC_BASE(x) (0x4809C000 + (shift << x))

Best Regards,
J.

[U-Boot] [PATCH] omap3: mmc: mmc2 support

[Minkyu Kang]

Hi,

>>  }
>>  
>>  unsigned char mmc_board_init(void)
> unsigned char?
> why

in omap3_mmc.c, many functions return the unsigned char.
I don't know why too :(
but if we need it can be changed.

>> +	switch (curr_device) {
>> +	case 1:
>> +		writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
>> +			PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
>> +			&t2_base->pbias_lite);
>>  
>> -	writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
>> -		&t2_base->devconf0);
>> +		writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
>> +			&t2_base->devconf0);
>> +		break;
>> +	case 2:
>> +	case 3:
>> +		writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
>> +			&t2_base->devconf1);
>> +		break;
>> +	}
> please only active code when the user activate the mmcx support
> 
> how your driver will work it I want to have two mmc support at the sametime??

I announced the patch for mmc command (but not applied yet)
please check it
http://lists.denx.de/pipermail/u-boot/2009-March/049835.html

>> +int mmc_legacy_init(int dev)
>>  {
>> +	if (mmc_set_dev(dev) != 0)
>> +		return 1;
>> +
> btw it will better to move to the new Framework

new Framework is what?
do you mean generic mmc?

>>  /*
>>   * OMAP HSMMC register definitions
>>   */
>> -#define OMAP_HSMMC_BASE		0x4809C000
>> +#define OMAP_HSMMC_BASE_MMC1	0x4809C000
>> +#define OMAP_HSMMC_BASE_MMC2	0x480B4000
>> +#define OMAP_HSMMC_BASE_MMC3	0x480AD000
> it's really a shame that TI does not make it in order and at the same shift
> so we could do this
> #define OMAP_HSMMC_BASE(x) (0x4809C000 + (shift << x))

right but.. I can't find any patterns for OMAP's HSMMC register.
also HSMMC register is defined separately@linux kernel code
(please see arch/arm/plat-omap/include/mach/mmc.h)

Many thanks
Minkyu Kang

[U-Boot] [PATCH] omap3: mmc: mmc2 support

[Minkyu Kang]

> By this patch, the MMC controller actually used is configured by
> CONFIG_MMC_INDEX at compile time? I.e. setting CONFIG_MMC_INDEX to 1
> will use mmc1, 2 will switch to mmc2 and CONFIG_MMC_INDEX 3 will
> switch to mmc3?
>
> If I got this right, do you think we can do this at runtime? E.g.
> implementing a custom command
>
> select_mmc <# of mmc controller to be used>
>
> ?
>
> With this, we could switch to mmc2 by doing something like
>
> select_mmc 2
>
> and afterwards all mmc read/write access will go to mmc2.
>
> What do you think?

Surely possible.
As you known, there is no interface for selecting device.
Can I add new command for that? (E.g. mmcselect <device num>)

And I want to change the mmcinit command too.
I.e. getting dev num by argument.
like this

mmcinit <device num>

If that is not in, we must select mmc device before mmcinit.
How about this? There exist any side effects?

Thanks :)
Minkyu Kang

-- 
from. prom.
promsoft.net

[U-Boot] [PATCH] omap3: mmc: mmc2 support

[Minkyu Kang]

There are 3 MMC/SD/SDIO host controllers inside the device.
This patch will support mmc2 and mmc3.

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
---
 drivers/mmc/omap3_mmc.c                   |   38 ++++++++++++++++++++++-------
 include/asm-arm/arch-omap3/mmc_host_def.h |   18 ++++++++++++-
 include/asm-arm/arch-omap3/omap3.h        |    3 ++
 include/configs/omap3_beagle.h            |    1 +
 include/configs/omap3_evm.h               |    1 +
 include/configs/omap3_overo.h             |    1 +
 include/configs/omap3_pandora.h           |    1 +
 include/configs/omap3_zoom1.h             |    1 +
 8 files changed, 53 insertions(+), 11 deletions(-)

diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c
index e90db7e..edc56fa 100644
--- a/drivers/mmc/omap3_mmc.c
+++ b/drivers/mmc/omap3_mmc.c
@@ -62,10 +62,21 @@ void twl4030_mmc_config(void)
 {
 	unsigned char data;
 
-	data = DEV_GRP_P1;
-	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
-	data = VMMC1_VSEL_30;
-	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
+	switch (CONFIG_MMC_INDEX) {
+	case 1:
+		data = DEV_GRP_P1;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
+		data = VMMC1_VSEL_30;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
+		break;
+	case 2:
+	case 3:
+		data = DEV_GRP_P1;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEV_GRP, 1, &data, 1);
+		data = VMMC2_VSEL_185;
+		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEDICATED, 1, &data, 1);
+		break;
+	}
 }
 
 unsigned char mmc_board_init(void)
@@ -74,12 +85,21 @@ unsigned char mmc_board_init(void)
 
 	twl4030_mmc_config();
 
-	writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
-		PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
-		&t2_base->pbias_lite);
+	switch (CONFIG_MMC_INDEX) {
+	case 1:
+		writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
+			PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
+			&t2_base->pbias_lite);
 
-	writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
-		&t2_base->devconf0);
+		writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
+			&t2_base->devconf0);
+		break;
+	case 2:
+	case 3:
+		writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
+			&t2_base->devconf1);
+		break;
+	}
 
 	return 1;
 }
diff --git a/include/asm-arm/arch-omap3/mmc_host_def.h b/include/asm-arm/arch-omap3/mmc_host_def.h
index aa751c9..01884f9 100644
--- a/include/asm-arm/arch-omap3/mmc_host_def.h
+++ b/include/asm-arm/arch-omap3/mmc_host_def.h
@@ -31,7 +31,9 @@
 typedef struct t2 {
 	unsigned char res1[0x274];
 	unsigned int devconf0;		/* 0x274 */
-	unsigned char res2[0x2A8];
+	unsigned char res2[0x60];
+	unsigned int devconf1;		/* 0x2D8 */
+	unsigned char res3[0x244];
 	unsigned int pbias_lite;	/* 0x520 */
 } t2_t;
 
@@ -41,10 +43,22 @@ typedef struct t2 {
 #define PBIASSPEEDCTRL0			(1 << 2)
 #define PBIASLITEPWRDNZ1		(1 << 9)
 
+#define MMCSDIO2ADPCLKISEL		(1 << 6)
+
 /*
  * OMAP HSMMC register definitions
  */
-#define OMAP_HSMMC_BASE		0x4809C000
+#define OMAP_HSMMC_BASE_MMC1	0x4809C000
+#define OMAP_HSMMC_BASE_MMC2	0x480B4000
+#define OMAP_HSMMC_BASE_MMC3	0x480AD000
+
+#if CONFIG_MMC_INDEX == 1
+#define OMAP_HSMMC_BASE			OMAP_HSMMC_BASE_MMC1
+#elif CONFIG_MMC_INDEX == 2
+#define OMAP_HSMMC_BASE			OMAP_HSMMC_BASE_MMC2
+#elif CONFIG_MMC_INDEX == 3
+#define OMAP_HSMMC_BASE			OMAP_HSMMC_BASE_MMC3
+#endif
 
 typedef struct hsmmc {
 	unsigned char res1[0x10];
diff --git a/include/asm-arm/arch-omap3/omap3.h b/include/asm-arm/arch-omap3/omap3.h
index 8c9656f..b5b5def 100644
--- a/include/asm-arm/arch-omap3/omap3.h
+++ b/include/asm-arm/arch-omap3/omap3.h
@@ -206,6 +206,8 @@ typedef struct gpio {
 #define VAUX3_DEDICATED		0x7D
 #define VMMC1_DEV_GRP		0x82
 #define VMMC1_DEDICATED		0x85
+#define VMMC2_DEV_GRP		0x86
+#define VMMC2_DEDICATED		0x89
 #define VPLL2_DEV_GRP		0x8E
 #define VPLL2_DEDICATED		0x91
 #define VDAC_DEV_GRP		0x96
@@ -219,5 +221,6 @@ typedef struct gpio {
 #define VPLL2_VSEL_18		0x05
 #define VDAC_VSEL_18		0x03
 #define VMMC1_VSEL_30		0x02
+#define VMMC2_VSEL_185		0x06
 
 #endif
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
index 0f9344b..3609a0d 100644
--- a/include/configs/omap3_beagle.h
+++ b/include/configs/omap3_beagle.h
@@ -90,6 +90,7 @@
 					115200}
 #define CONFIG_MMC			1
 #define CONFIG_OMAP3_MMC		1
+#define CONFIG_MMC_INDEX		1
 #define CONFIG_DOS_PARTITION		1
 
 /* commands to include */
diff --git a/include/configs/omap3_evm.h b/include/configs/omap3_evm.h
index f4498a9..6417eba 100644
--- a/include/configs/omap3_evm.h
+++ b/include/configs/omap3_evm.h
@@ -95,6 +95,7 @@
 					115200}
 #define CONFIG_MMC			1
 #define CONFIG_OMAP3_MMC		1
+#define CONFIG_MMC_INDEX		1
 #define CONFIG_DOS_PARTITION		1
 
 /* commands to include */
diff --git a/include/configs/omap3_overo.h b/include/configs/omap3_overo.h
index dee0417..af23abd 100644
--- a/include/configs/omap3_overo.h
+++ b/include/configs/omap3_overo.h
@@ -82,6 +82,7 @@
 					115200}
 #define CONFIG_MMC			1
 #define CONFIG_OMAP3_MMC		1
+#define CONFIG_MMC_INDEX		1
 #define CONFIG_DOS_PARTITION		1
 
 /* commands to include */
diff --git a/include/configs/omap3_pandora.h b/include/configs/omap3_pandora.h
index 00c0374..4e09a9a 100644
--- a/include/configs/omap3_pandora.h
+++ b/include/configs/omap3_pandora.h
@@ -85,6 +85,7 @@
 					115200}
 #define CONFIG_MMC			1
 #define CONFIG_OMAP3_MMC		1
+#define CONFIG_MMC_INDEX		1
 #define CONFIG_DOS_PARTITION		1
 
 /* commands to include */
diff --git a/include/configs/omap3_zoom1.h b/include/configs/omap3_zoom1.h
index f8ae163..2af5b07 100644
--- a/include/configs/omap3_zoom1.h
+++ b/include/configs/omap3_zoom1.h
@@ -91,6 +91,7 @@
 					115200}
 #define CONFIG_MMC			1
 #define CONFIG_OMAP3_MMC		1
+#define CONFIG_MMC_INDEX		1
 #define CONFIG_DOS_PARTITION		1
 
 /* commands to include */

[U-Boot] [PATCH] omap3: mmc: mmc2 support

[Dirk Behme]

Minkyu Kang wrote:
> There are 3 MMC/SD/SDIO host controllers inside the device.
> This patch will support mmc2 and mmc3.

By this patch, the MMC controller actually used is configured by 
CONFIG_MMC_INDEX at compile time? I.e. setting CONFIG_MMC_INDEX to 1 
will use mmc1, 2 will switch to mmc2 and CONFIG_MMC_INDEX 3 will 
switch to mmc3?

If I got this right, do you think we can do this at runtime? E.g. 
implementing a custom command

select_mmc <# of mmc controller to be used>

?

With this, we could switch to mmc2 by doing something like

select_mmc 2

and afterwards all mmc read/write access will go to mmc2.

What do you think?

Looking at MMC commands, there is also a <device num> option available 
for mmc commands, e.g.

mmc read <device num>

Not sure if this could help us here.

Maybe the MMC experts can advice how to do this the best way?

Best regards

Dirk

> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
> ---
>  drivers/mmc/omap3_mmc.c                   |   38 ++++++++++++++++++++++-------
>  include/asm-arm/arch-omap3/mmc_host_def.h |   18 ++++++++++++-
>  include/asm-arm/arch-omap3/omap3.h        |    3 ++
>  include/configs/omap3_beagle.h            |    1 +
>  include/configs/omap3_evm.h               |    1 +
>  include/configs/omap3_overo.h             |    1 +
>  include/configs/omap3_pandora.h           |    1 +
>  include/configs/omap3_zoom1.h             |    1 +
>  8 files changed, 53 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/mmc/omap3_mmc.c b/drivers/mmc/omap3_mmc.c
> index e90db7e..edc56fa 100644
> --- a/drivers/mmc/omap3_mmc.c
> +++ b/drivers/mmc/omap3_mmc.c
> @@ -62,10 +62,21 @@ void twl4030_mmc_config(void)
>  {
>  	unsigned char data;
>  
> -	data = DEV_GRP_P1;
> -	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
> -	data = VMMC1_VSEL_30;
> -	i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
> +	switch (CONFIG_MMC_INDEX) {
> +	case 1:
> +		data = DEV_GRP_P1;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEV_GRP, 1, &data, 1);
> +		data = VMMC1_VSEL_30;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC1_DEDICATED, 1, &data, 1);
> +		break;
> +	case 2:
> +	case 3:
> +		data = DEV_GRP_P1;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEV_GRP, 1, &data, 1);
> +		data = VMMC2_VSEL_185;
> +		i2c_write(PWRMGT_ADDR_ID4, VMMC2_DEDICATED, 1, &data, 1);
> +		break;
> +	}
>  }
>  
>  unsigned char mmc_board_init(void)
> @@ -74,12 +85,21 @@ unsigned char mmc_board_init(void)
>  
>  	twl4030_mmc_config();
>  
> -	writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
> -		PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
> -		&t2_base->pbias_lite);
> +	switch (CONFIG_MMC_INDEX) {
> +	case 1:
> +		writel(readl(&t2_base->pbias_lite) | PBIASLITEPWRDNZ1 |
> +			PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
> +			&t2_base->pbias_lite);
>  
> -	writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
> -		&t2_base->devconf0);
> +		writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
> +			&t2_base->devconf0);
> +		break;
> +	case 2:
> +	case 3:
> +		writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
> +			&t2_base->devconf1);
> +		break;
> +	}
>  
>  	return 1;
>  }
> diff --git a/include/asm-arm/arch-omap3/mmc_host_def.h b/include/asm-arm/arch-omap3/mmc_host_def.h
> index aa751c9..01884f9 100644
> --- a/include/asm-arm/arch-omap3/mmc_host_def.h
> +++ b/include/asm-arm/arch-omap3/mmc_host_def.h
> @@ -31,7 +31,9 @@
>  typedef struct t2 {
>  	unsigned char res1[0x274];
>  	unsigned int devconf0;		/* 0x274 */
> -	unsigned char res2[0x2A8];
> +	unsigned char res2[0x60];
> +	unsigned int devconf1;		/* 0x2D8 */
> +	unsigned char res3[0x244];
>  	unsigned int pbias_lite;	/* 0x520 */
>  } t2_t;
>  
> @@ -41,10 +43,22 @@ typedef struct t2 {
>  #define PBIASSPEEDCTRL0			(1 << 2)
>  #define PBIASLITEPWRDNZ1		(1 << 9)
>  
> +#define MMCSDIO2ADPCLKISEL		(1 << 6)
> +
>  /*
>   * OMAP HSMMC register definitions
>   */
> -#define OMAP_HSMMC_BASE		0x4809C000
> +#define OMAP_HSMMC_BASE_MMC1	0x4809C000
> +#define OMAP_HSMMC_BASE_MMC2	0x480B4000
> +#define OMAP_HSMMC_BASE_MMC3	0x480AD000
> +
> +#if CONFIG_MMC_INDEX == 1
> +#define OMAP_HSMMC_BASE			OMAP_HSMMC_BASE_MMC1
> +#elif CONFIG_MMC_INDEX == 2
> +#define OMAP_HSMMC_BASE			OMAP_HSMMC_BASE_MMC2
> +#elif CONFIG_MMC_INDEX == 3
> +#define OMAP_HSMMC_BASE			OMAP_HSMMC_BASE_MMC3
> +#endif
>  
>  typedef struct hsmmc {
>  	unsigned char res1[0x10];
> diff --git a/include/asm-arm/arch-omap3/omap3.h b/include/asm-arm/arch-omap3/omap3.h
> index 8c9656f..b5b5def 100644
> --- a/include/asm-arm/arch-omap3/omap3.h
> +++ b/include/asm-arm/arch-omap3/omap3.h
> @@ -206,6 +206,8 @@ typedef struct gpio {
>  #define VAUX3_DEDICATED		0x7D
>  #define VMMC1_DEV_GRP		0x82
>  #define VMMC1_DEDICATED		0x85
> +#define VMMC2_DEV_GRP		0x86
> +#define VMMC2_DEDICATED		0x89
>  #define VPLL2_DEV_GRP		0x8E
>  #define VPLL2_DEDICATED		0x91
>  #define VDAC_DEV_GRP		0x96
> @@ -219,5 +221,6 @@ typedef struct gpio {
>  #define VPLL2_VSEL_18		0x05
>  #define VDAC_VSEL_18		0x03
>  #define VMMC1_VSEL_30		0x02
> +#define VMMC2_VSEL_185		0x06
>  
>  #endif
> diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
> index 0f9344b..3609a0d 100644
> --- a/include/configs/omap3_beagle.h
> +++ b/include/configs/omap3_beagle.h
> @@ -90,6 +90,7 @@
>  					115200}
>  #define CONFIG_MMC			1
>  #define CONFIG_OMAP3_MMC		1
> +#define CONFIG_MMC_INDEX		1
>  #define CONFIG_DOS_PARTITION		1
>  
>  /* commands to include */
> diff --git a/include/configs/omap3_evm.h b/include/configs/omap3_evm.h
> index f4498a9..6417eba 100644
> --- a/include/configs/omap3_evm.h
> +++ b/include/configs/omap3_evm.h
> @@ -95,6 +95,7 @@
>  					115200}
>  #define CONFIG_MMC			1
>  #define CONFIG_OMAP3_MMC		1
> +#define CONFIG_MMC_INDEX		1
>  #define CONFIG_DOS_PARTITION		1
>  
>  /* commands to include */
> diff --git a/include/configs/omap3_overo.h b/include/configs/omap3_overo.h
> index dee0417..af23abd 100644
> --- a/include/configs/omap3_overo.h
> +++ b/include/configs/omap3_overo.h
> @@ -82,6 +82,7 @@
>  					115200}
>  #define CONFIG_MMC			1
>  #define CONFIG_OMAP3_MMC		1
> +#define CONFIG_MMC_INDEX		1
>  #define CONFIG_DOS_PARTITION		1
>  
>  /* commands to include */
> diff --git a/include/configs/omap3_pandora.h b/include/configs/omap3_pandora.h
> index 00c0374..4e09a9a 100644
> --- a/include/configs/omap3_pandora.h
> +++ b/include/configs/omap3_pandora.h
> @@ -85,6 +85,7 @@
>  					115200}
>  #define CONFIG_MMC			1
>  #define CONFIG_OMAP3_MMC		1
> +#define CONFIG_MMC_INDEX		1
>  #define CONFIG_DOS_PARTITION		1
>  
>  /* commands to include */
> diff --git a/include/configs/omap3_zoom1.h b/include/configs/omap3_zoom1.h
> index f8ae163..2af5b07 100644
> --- a/include/configs/omap3_zoom1.h
> +++ b/include/configs/omap3_zoom1.h
> @@ -91,6 +91,7 @@
>  					115200}
>  #define CONFIG_MMC			1
>  #define CONFIG_OMAP3_MMC		1
> +#define CONFIG_MMC_INDEX		1
>  #define CONFIG_DOS_PARTITION		1
>  
>  /* commands to include */
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
> 

[U-Boot] [PATCH] omap3: mmc: mmc2 support

[Wolfgang Denk]

Dear Dirk,

In message <49CC0CC9.7060900@googlemail.com> you wrote:
> Minkyu Kang wrote:
> > There are 3 MMC/SD/SDIO host controllers inside the device.
> > This patch will support mmc2 and mmc3.
> 
> By this patch, the MMC controller actually used is configured by 
> CONFIG_MMC_INDEX at compile time? I.e. setting CONFIG_MMC_INDEX to 1 
> will use mmc1, 2 will switch to mmc2 and CONFIG_MMC_INDEX 3 will 
> switch to mmc3?
> 
> If I got this right, do you think we can do this at runtime? E.g. 
> implementing a custom command
> 
> select_mmc <# of mmc controller to be used>
> 
> ?
> 
> With this, we could switch to mmc2 by doing something like
> 
> select_mmc 2
> 
> and afterwards all mmc read/write access will go to mmc2.
> 
> What do you think?

The idea is OK, but I would like to have this implemented using a
consistent interface across all other storage devices.

In other words, a "FOO device [dev] - show or set current device"
command should be implemented, no matter if "FOO" is "ide" or "usb"
or "sata" or "scsi" or "mmc" or ...

Best regards,

Wolfgang Denk

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DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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