diff mbox

[U-Boot,V3,1/2] mmc: sd: extracting erase timeout information from sd status

Message ID 1471939953-11049-1-git-send-email-peng.fan@nxp.com
State Superseded
Delegated to: Jaehoon Chung
Headers show

Commit Message

Peng Fan Aug. 23, 2016, 8:12 a.m. UTC
Add function to read SD_STATUS information.
According to the information, get erase_timeout/erase_size/erase_offset.
Add a structure sd_ssr to include the erase related information.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Eric Nelson <eric@nelint.com>
Cc: Stephen Warren <swarren@nvidia.com>
---

I dropped patch [2,3,4]/5 in V2, which is not a must in this optimization case.

V3:
 No change.

V2:
 Address Jaehoon's comments for V1

 drivers/mmc/mmc.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 include/mmc.h     |  8 +++++++
 2 files changed, 76 insertions(+)

Comments

Peng Fan Aug. 30, 2016, 6:57 a.m. UTC | #1
Kindly ping..

Thanks,
Peng.
On Tue, Aug 23, 2016 at 04:12:32PM +0800, Peng Fan wrote:
>Add function to read SD_STATUS information.
>According to the information, get erase_timeout/erase_size/erase_offset.
>Add a structure sd_ssr to include the erase related information.
>
>Signed-off-by: Peng Fan <peng.fan@nxp.com>
>Cc: Jaehoon Chung <jh80.chung@samsung.com>
>Cc: Simon Glass <sjg@chromium.org>
>Cc: Bin Meng <bmeng.cn@gmail.com>
>Cc: Stefan Wahren <stefan.wahren@i2se.com>
>Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
>Cc: Kever Yang <kever.yang@rock-chips.com>
>Cc: Eric Nelson <eric@nelint.com>
>Cc: Stephen Warren <swarren@nvidia.com>
>---
>
>I dropped patch [2,3,4]/5 in V2, which is not a must in this optimization case.
>
>V3:
> No change.
>
>V2:
> Address Jaehoon's comments for V1
>
> drivers/mmc/mmc.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> include/mmc.h     |  8 +++++++
> 2 files changed, 76 insertions(+)
>
>diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
>index 43ea0bb..0312da9 100644
>--- a/drivers/mmc/mmc.c
>+++ b/drivers/mmc/mmc.c
>@@ -21,6 +21,14 @@
> #include <div64.h>
> #include "mmc_private.h"
> 
>+static const unsigned int sd_au_size[] = {
>+	0,		SZ_16K / 512,		SZ_32K / 512,
>+	SZ_64K / 512,	SZ_128K / 512,		SZ_256K / 512,
>+	SZ_512K / 512,	SZ_1M / 512,		SZ_2M / 512,
>+	SZ_4M / 512,	SZ_8M / 512,		(SZ_8M + SZ_4M) / 512,
>+	SZ_16M / 512,	(SZ_16M + SZ_8M) / 512,	SZ_32M / 512,	SZ_64M / 512,
>+};
>+
> #ifndef CONFIG_DM_MMC_OPS
> __weak int board_mmc_getwp(struct mmc *mmc)
> {
>@@ -945,6 +953,62 @@ retry_scr:
> 	return 0;
> }
> 
>+static int sd_read_ssr(struct mmc *mmc)
>+{
>+	int err, i;
>+	struct mmc_cmd cmd;
>+	ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
>+	struct mmc_data data;
>+	int timeout = 3;
>+	unsigned int au, eo, et, es;
>+
>+	cmd.cmdidx = MMC_CMD_APP_CMD;
>+	cmd.resp_type = MMC_RSP_R1;
>+	cmd.cmdarg = mmc->rca << 16;
>+
>+	err = mmc_send_cmd(mmc, &cmd, NULL);
>+	if (err)
>+		return err;
>+
>+	cmd.cmdidx = SD_CMD_APP_SD_STATUS;
>+	cmd.resp_type = MMC_RSP_R1;
>+	cmd.cmdarg = 0;
>+
>+retry_ssr:
>+	data.dest = (char *)ssr;
>+	data.blocksize = 64;
>+	data.blocks = 1;
>+	data.flags = MMC_DATA_READ;
>+
>+	err = mmc_send_cmd(mmc, &cmd, &data);
>+	if (err) {
>+		if (timeout--)
>+			goto retry_ssr;
>+
>+		return err;
>+	}
>+
>+	for (i = 0; i < 16; i++)
>+		ssr[i] = be32_to_cpu(ssr[i]);
>+
>+	au = (ssr[2] >> 12) & 0xF;
>+	if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
>+		mmc->ssr.au = sd_au_size[au];
>+		es = (ssr[3] >> 24) & 0xFF;
>+		es |= (ssr[2] & 0xFF) << 8;
>+		et = (ssr[3] >> 18) & 0x3F;
>+		if (es && et) {
>+			eo = (ssr[3] >> 16) & 0x3;
>+			mmc->ssr.erase_timeout = (et * 1000) / es;
>+			mmc->ssr.erase_offset = eo * 1000;
>+		}
>+	} else {
>+		debug("Invalid Allocation Unit Size.\n");
>+	}
>+
>+	return 0;
>+}
>+
> /* frequency bases */
> /* divided by 10 to be nice to platforms without floating point */
> static const int fbase[] = {
>@@ -1350,6 +1414,10 @@ static int mmc_startup(struct mmc *mmc)
> 			mmc_set_bus_width(mmc, 4);
> 		}
> 
>+		err = sd_read_ssr(mmc);
>+		if (err)
>+			return err;
>+
> 		if (mmc->card_caps & MMC_MODE_HS)
> 			mmc->tran_speed = 50000000;
> 		else
>diff --git a/include/mmc.h b/include/mmc.h
>index aa6d5d1..af2595c 100644
>--- a/include/mmc.h
>+++ b/include/mmc.h
>@@ -102,6 +102,7 @@
> #define SD_CMD_SWITCH_UHS18V		11
> 
> #define SD_CMD_APP_SET_BUS_WIDTH	6
>+#define SD_CMD_APP_SD_STATUS		13
> #define SD_CMD_ERASE_WR_BLK_START	32
> #define SD_CMD_ERASE_WR_BLK_END		33
> #define SD_CMD_APP_SEND_OP_COND		41
>@@ -392,6 +393,12 @@ struct mmc_config {
> 	unsigned char part_type;
> };
> 
>+struct sd_ssr {
>+	unsigned int au;		/* In sectors */
>+	unsigned int erase_timeout;	/* In milliseconds */
>+	unsigned int erase_offset;	/* In milliseconds */
>+};
>+
> /*
>  * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
>  * with mmc_get_mmc_dev().
>@@ -426,6 +433,7 @@ struct mmc {
> 	uint write_bl_len;
> 	uint erase_grp_size;	/* in 512-byte sectors */
> 	uint hc_wp_grp_size;	/* in 512-byte sectors */
>+	struct sd_ssr	ssr;	/* SD status register */
> 	u64 capacity;
> 	u64 capacity_user;
> 	u64 capacity_boot;
>-- 
>2.6.2
>
Jaehoon Chung Aug. 30, 2016, 9:34 a.m. UTC | #2
Hi Peng,

On 08/23/2016 05:12 PM, Peng Fan wrote:
> Add function to read SD_STATUS information.
> According to the information, get erase_timeout/erase_size/erase_offset.
> Add a structure sd_ssr to include the erase related information.
> 
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> Cc: Jaehoon Chung <jh80.chung@samsung.com>
> Cc: Simon Glass <sjg@chromium.org>
> Cc: Bin Meng <bmeng.cn@gmail.com>
> Cc: Stefan Wahren <stefan.wahren@i2se.com>
> Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
> Cc: Kever Yang <kever.yang@rock-chips.com>
> Cc: Eric Nelson <eric@nelint.com>
> Cc: Stephen Warren <swarren@nvidia.com>

Applied on u-boot-mmc.
Thanks!

Best Regards,
Jaehoon Chung

> ---
> 
> I dropped patch [2,3,4]/5 in V2, which is not a must in this optimization case.
> 
> V3:
>  No change.
> 
> V2:
>  Address Jaehoon's comments for V1
> 
>  drivers/mmc/mmc.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  include/mmc.h     |  8 +++++++
>  2 files changed, 76 insertions(+)
> 
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index 43ea0bb..0312da9 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -21,6 +21,14 @@
>  #include <div64.h>
>  #include "mmc_private.h"
>  
> +static const unsigned int sd_au_size[] = {
> +	0,		SZ_16K / 512,		SZ_32K / 512,
> +	SZ_64K / 512,	SZ_128K / 512,		SZ_256K / 512,
> +	SZ_512K / 512,	SZ_1M / 512,		SZ_2M / 512,
> +	SZ_4M / 512,	SZ_8M / 512,		(SZ_8M + SZ_4M) / 512,
> +	SZ_16M / 512,	(SZ_16M + SZ_8M) / 512,	SZ_32M / 512,	SZ_64M / 512,
> +};
> +
>  #ifndef CONFIG_DM_MMC_OPS
>  __weak int board_mmc_getwp(struct mmc *mmc)
>  {
> @@ -945,6 +953,62 @@ retry_scr:
>  	return 0;
>  }
>  
> +static int sd_read_ssr(struct mmc *mmc)
> +{
> +	int err, i;
> +	struct mmc_cmd cmd;
> +	ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
> +	struct mmc_data data;
> +	int timeout = 3;
> +	unsigned int au, eo, et, es;
> +
> +	cmd.cmdidx = MMC_CMD_APP_CMD;
> +	cmd.resp_type = MMC_RSP_R1;
> +	cmd.cmdarg = mmc->rca << 16;
> +
> +	err = mmc_send_cmd(mmc, &cmd, NULL);
> +	if (err)
> +		return err;
> +
> +	cmd.cmdidx = SD_CMD_APP_SD_STATUS;
> +	cmd.resp_type = MMC_RSP_R1;
> +	cmd.cmdarg = 0;
> +
> +retry_ssr:
> +	data.dest = (char *)ssr;
> +	data.blocksize = 64;
> +	data.blocks = 1;
> +	data.flags = MMC_DATA_READ;
> +
> +	err = mmc_send_cmd(mmc, &cmd, &data);
> +	if (err) {
> +		if (timeout--)
> +			goto retry_ssr;
> +
> +		return err;
> +	}
> +
> +	for (i = 0; i < 16; i++)
> +		ssr[i] = be32_to_cpu(ssr[i]);
> +
> +	au = (ssr[2] >> 12) & 0xF;
> +	if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
> +		mmc->ssr.au = sd_au_size[au];
> +		es = (ssr[3] >> 24) & 0xFF;
> +		es |= (ssr[2] & 0xFF) << 8;
> +		et = (ssr[3] >> 18) & 0x3F;
> +		if (es && et) {
> +			eo = (ssr[3] >> 16) & 0x3;
> +			mmc->ssr.erase_timeout = (et * 1000) / es;
> +			mmc->ssr.erase_offset = eo * 1000;
> +		}
> +	} else {
> +		debug("Invalid Allocation Unit Size.\n");
> +	}
> +
> +	return 0;
> +}
> +
>  /* frequency bases */
>  /* divided by 10 to be nice to platforms without floating point */
>  static const int fbase[] = {
> @@ -1350,6 +1414,10 @@ static int mmc_startup(struct mmc *mmc)
>  			mmc_set_bus_width(mmc, 4);
>  		}
>  
> +		err = sd_read_ssr(mmc);
> +		if (err)
> +			return err;
> +
>  		if (mmc->card_caps & MMC_MODE_HS)
>  			mmc->tran_speed = 50000000;
>  		else
> diff --git a/include/mmc.h b/include/mmc.h
> index aa6d5d1..af2595c 100644
> --- a/include/mmc.h
> +++ b/include/mmc.h
> @@ -102,6 +102,7 @@
>  #define SD_CMD_SWITCH_UHS18V		11
>  
>  #define SD_CMD_APP_SET_BUS_WIDTH	6
> +#define SD_CMD_APP_SD_STATUS		13
>  #define SD_CMD_ERASE_WR_BLK_START	32
>  #define SD_CMD_ERASE_WR_BLK_END		33
>  #define SD_CMD_APP_SEND_OP_COND		41
> @@ -392,6 +393,12 @@ struct mmc_config {
>  	unsigned char part_type;
>  };
>  
> +struct sd_ssr {
> +	unsigned int au;		/* In sectors */
> +	unsigned int erase_timeout;	/* In milliseconds */
> +	unsigned int erase_offset;	/* In milliseconds */
> +};
> +
>  /*
>   * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
>   * with mmc_get_mmc_dev().
> @@ -426,6 +433,7 @@ struct mmc {
>  	uint write_bl_len;
>  	uint erase_grp_size;	/* in 512-byte sectors */
>  	uint hc_wp_grp_size;	/* in 512-byte sectors */
> +	struct sd_ssr	ssr;	/* SD status register */
>  	u64 capacity;
>  	u64 capacity_user;
>  	u64 capacity_boot;
>
Jaehoon Chung Aug. 31, 2016, 12:50 p.m. UTC | #3
Hi Peng,

On 08/30/2016 06:34 PM, Jaehoon Chung wrote:
> Hi Peng,
> 
> On 08/23/2016 05:12 PM, Peng Fan wrote:
>> Add function to read SD_STATUS information.
>> According to the information, get erase_timeout/erase_size/erase_offset.
>> Add a structure sd_ssr to include the erase related information.
>>
>> Signed-off-by: Peng Fan <peng.fan@nxp.com>
>> Cc: Jaehoon Chung <jh80.chung@samsung.com>
>> Cc: Simon Glass <sjg@chromium.org>
>> Cc: Bin Meng <bmeng.cn@gmail.com>
>> Cc: Stefan Wahren <stefan.wahren@i2se.com>
>> Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
>> Cc: Kever Yang <kever.yang@rock-chips.com>
>> Cc: Eric Nelson <eric@nelint.com>
>> Cc: Stephen Warren <swarren@nvidia.com>
> 
> Applied on u-boot-mmc.
> Thanks!

Sorry..I have dropped your patchset from u-boot-mmc.

Stephen was pointing out about the below things.

Building current source for 3 boards (3 threads, 4 jobs per thread)
   sandbox:  +   sandbox_noblk
+drivers/mmc/mmc.c:25:6: error: ‘SZ_16K’ undeclared here (not in a function)
+  0,  SZ_16K / 512,  SZ_32K / 512,
+      ^
+drivers/mmc/mmc.c:25:21: error: ‘SZ_32K’ undeclared here (not in a function)
+                     ^

When i have checked, it's not error for only sandbox_noblk.

       arm:  +   dserve_dsrv9703c
+../drivers/mmc/mmc.c:25:6: error: ‘SZ_16K’ undeclared here (not in a function)
+  0,  SZ_16K / 512,  SZ_32K / 512,
+      ^
+../drivers/mmc/mmc.c:25:21: error: ‘SZ_32K’ undeclared here (not in a function)
+                     ^
+../drivers/mmc/mmc.c:26:2: error: ‘SZ_64K’ undeclared here (not in a function)
+  SZ_64K / 512, SZ_128K / 512,  SZ_256K / 512,
+  ^
+../drivers/mmc/mmc.c:26:16: error: ‘SZ_128K’ undeclared here (not in a function)
+                ^
+../drivers/mmc/mmc.c:26:32: error: ‘SZ_256K’ undeclared here (not in a function)
+                                ^
+../drivers/mmc/mmc.c:27:2: error: ‘SZ_512K’ undeclared here (not in a function)
+  SZ_512K / 512, SZ_1M / 512,  SZ_2M / 512,
+../drivers/mmc/mmc.c:27:17: error: ‘SZ_1M’ undeclared here (not in a function)
+                 ^
+../drivers/mmc/mmc.c:27:31: error: ‘SZ_2M’ undeclared here (not in a function)
+                               ^
+../drivers/mmc/mmc.c:28:2: error: ‘SZ_4M’ undeclared here (not in a function)
+  SZ_4M / 512, SZ_8M / 512,  (SZ_8M + SZ_4M) / 512,
+../drivers/mmc/mmc.c:28:15: error: ‘SZ_8M’ undeclared here (not in a function)
+               ^
+../drivers/mmc/mmc.c:29:2: error: ‘SZ_16M’ undeclared here (not in a function)
+  SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
+../drivers/mmc/mmc.c:29:40: error: ‘SZ_32M’ undeclared here (not in a function)
+                                        ^
+../drivers/mmc/mmc.c:29:54: error: ‘SZ_64M’ undeclared here (not in a function)

02: mmc: sd: extracting erase timeout information from sd status
       arm:  +   firefly-rk3288
+../drivers/mmc/mmc.c:25:6: error: ‘SZ_16K’ undeclared here (not in a function)
+  0,  SZ_16K / 512,  SZ_32K / 512,
+      ^
+../drivers/mmc/mmc.c:25:21: error: ‘SZ_32K’ undeclared here (not in a function)
+                     ^
+../drivers/mmc/mmc.c:26:2: error: ‘SZ_64K’ undeclared here (not in a function)
+  SZ_64K / 512, SZ_128K / 512,  SZ_256K / 512,
+  ^
+../drivers/mmc/mmc.c:26:16: error: ‘SZ_128K’ undeclared here (not in a function)
+                ^
+../drivers/mmc/mmc.c:26:32: error: ‘SZ_256K’ undeclared here (not in a function)
+                                ^
+../drivers/mmc/mmc.c:27:2: error: ‘SZ_512K’ undeclared here (not in a function)
+  SZ_512K / 512, SZ_1M / 512,  SZ_2M / 512,
+../drivers/mmc/mmc.c:27:17: error: ‘SZ_1M’ undeclared here (not in a function)
+                 ^
+../drivers/mmc/mmc.c:27:31: error: ‘SZ_2M’ undeclared here (not in a function)
+                               ^
+../drivers/mmc/mmc.c:28:2: error: ‘SZ_4M’ undeclared here (not in a function)
+  SZ_4M / 512, SZ_8M / 512,  (SZ_8M + SZ_4M) / 512,
+../drivers/mmc/mmc.c:28:15: error: ‘SZ_8M’ undeclared here (not in a function)
+               ^
+../drivers/mmc/mmc.c:29:2: error: ‘SZ_16M’ undeclared here (not in a function)
+  SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
+../drivers/mmc/mmc.c:29:40: error: ‘SZ_32M’ undeclared here (not in a function)
+                                        ^
+../drivers/mmc/mmc.c:29:54: error: ‘SZ_64M’ undeclared here (not in a function)
+                                                      ^

Could you check this?

Best Regards,
Jaehoon Chung

> 
> Best Regards,
> Jaehoon Chung
> 
>> ---
>>
>> I dropped patch [2,3,4]/5 in V2, which is not a must in this optimization case.
>>
>> V3:
>>  No change.
>>
>> V2:
>>  Address Jaehoon's comments for V1
>>
>>  drivers/mmc/mmc.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  include/mmc.h     |  8 +++++++
>>  2 files changed, 76 insertions(+)
>>
>> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
>> index 43ea0bb..0312da9 100644
>> --- a/drivers/mmc/mmc.c
>> +++ b/drivers/mmc/mmc.c
>> @@ -21,6 +21,14 @@
>>  #include <div64.h>
>>  #include "mmc_private.h"
>>  
>> +static const unsigned int sd_au_size[] = {
>> +	0,		SZ_16K / 512,		SZ_32K / 512,
>> +	SZ_64K / 512,	SZ_128K / 512,		SZ_256K / 512,
>> +	SZ_512K / 512,	SZ_1M / 512,		SZ_2M / 512,
>> +	SZ_4M / 512,	SZ_8M / 512,		(SZ_8M + SZ_4M) / 512,
>> +	SZ_16M / 512,	(SZ_16M + SZ_8M) / 512,	SZ_32M / 512,	SZ_64M / 512,
>> +};
>> +
>>  #ifndef CONFIG_DM_MMC_OPS
>>  __weak int board_mmc_getwp(struct mmc *mmc)
>>  {
>> @@ -945,6 +953,62 @@ retry_scr:
>>  	return 0;
>>  }
>>  
>> +static int sd_read_ssr(struct mmc *mmc)
>> +{
>> +	int err, i;
>> +	struct mmc_cmd cmd;
>> +	ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
>> +	struct mmc_data data;
>> +	int timeout = 3;
>> +	unsigned int au, eo, et, es;
>> +
>> +	cmd.cmdidx = MMC_CMD_APP_CMD;
>> +	cmd.resp_type = MMC_RSP_R1;
>> +	cmd.cmdarg = mmc->rca << 16;
>> +
>> +	err = mmc_send_cmd(mmc, &cmd, NULL);
>> +	if (err)
>> +		return err;
>> +
>> +	cmd.cmdidx = SD_CMD_APP_SD_STATUS;
>> +	cmd.resp_type = MMC_RSP_R1;
>> +	cmd.cmdarg = 0;
>> +
>> +retry_ssr:
>> +	data.dest = (char *)ssr;
>> +	data.blocksize = 64;
>> +	data.blocks = 1;
>> +	data.flags = MMC_DATA_READ;
>> +
>> +	err = mmc_send_cmd(mmc, &cmd, &data);
>> +	if (err) {
>> +		if (timeout--)
>> +			goto retry_ssr;
>> +
>> +		return err;
>> +	}
>> +
>> +	for (i = 0; i < 16; i++)
>> +		ssr[i] = be32_to_cpu(ssr[i]);
>> +
>> +	au = (ssr[2] >> 12) & 0xF;
>> +	if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
>> +		mmc->ssr.au = sd_au_size[au];
>> +		es = (ssr[3] >> 24) & 0xFF;
>> +		es |= (ssr[2] & 0xFF) << 8;
>> +		et = (ssr[3] >> 18) & 0x3F;
>> +		if (es && et) {
>> +			eo = (ssr[3] >> 16) & 0x3;
>> +			mmc->ssr.erase_timeout = (et * 1000) / es;
>> +			mmc->ssr.erase_offset = eo * 1000;
>> +		}
>> +	} else {
>> +		debug("Invalid Allocation Unit Size.\n");
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>>  /* frequency bases */
>>  /* divided by 10 to be nice to platforms without floating point */
>>  static const int fbase[] = {
>> @@ -1350,6 +1414,10 @@ static int mmc_startup(struct mmc *mmc)
>>  			mmc_set_bus_width(mmc, 4);
>>  		}
>>  
>> +		err = sd_read_ssr(mmc);
>> +		if (err)
>> +			return err;
>> +
>>  		if (mmc->card_caps & MMC_MODE_HS)
>>  			mmc->tran_speed = 50000000;
>>  		else
>> diff --git a/include/mmc.h b/include/mmc.h
>> index aa6d5d1..af2595c 100644
>> --- a/include/mmc.h
>> +++ b/include/mmc.h
>> @@ -102,6 +102,7 @@
>>  #define SD_CMD_SWITCH_UHS18V		11
>>  
>>  #define SD_CMD_APP_SET_BUS_WIDTH	6
>> +#define SD_CMD_APP_SD_STATUS		13
>>  #define SD_CMD_ERASE_WR_BLK_START	32
>>  #define SD_CMD_ERASE_WR_BLK_END		33
>>  #define SD_CMD_APP_SEND_OP_COND		41
>> @@ -392,6 +393,12 @@ struct mmc_config {
>>  	unsigned char part_type;
>>  };
>>  
>> +struct sd_ssr {
>> +	unsigned int au;		/* In sectors */
>> +	unsigned int erase_timeout;	/* In milliseconds */
>> +	unsigned int erase_offset;	/* In milliseconds */
>> +};
>> +
>>  /*
>>   * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
>>   * with mmc_get_mmc_dev().
>> @@ -426,6 +433,7 @@ struct mmc {
>>  	uint write_bl_len;
>>  	uint erase_grp_size;	/* in 512-byte sectors */
>>  	uint hc_wp_grp_size;	/* in 512-byte sectors */
>> +	struct sd_ssr	ssr;	/* SD status register */
>>  	u64 capacity;
>>  	u64 capacity_user;
>>  	u64 capacity_boot;
>>
> 
> _______________________________________________
> U-Boot mailing list
> U-Boot@lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
> 
> 
>
Peng Fan Sept. 1, 2016, 2:20 a.m. UTC | #4
Hi Jaehoon,
On Wed, Aug 31, 2016 at 09:50:24PM +0900, Jaehoon Chung wrote:
>Hi Peng,
>
>On 08/30/2016 06:34 PM, Jaehoon Chung wrote:
>> Hi Peng,
>>
>> On 08/23/2016 05:12 PM, Peng Fan wrote:
>>> Add function to read SD_STATUS information.
>>> According to the information, get erase_timeout/erase_size/erase_offset.
>>> Add a structure sd_ssr to include the erase related information.
>>>
>>> Signed-off-by: Peng Fan <peng.fan@nxp.com>
>>> Cc: Jaehoon Chung <jh80.chung@samsung.com>
>>> Cc: Simon Glass <sjg@chromium.org>
>>> Cc: Bin Meng <bmeng.cn@gmail.com>
>>> Cc: Stefan Wahren <stefan.wahren@i2se.com>
>>> Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
>>> Cc: Kever Yang <kever.yang@rock-chips.com>
>>> Cc: Eric Nelson <eric@nelint.com>
>>> Cc: Stephen Warren <swarren@nvidia.com>
>>
>> Applied on u-boot-mmc.
>> Thanks!
>
>Sorry..I have dropped your patchset from u-boot-mmc.
>
>Stephen was pointing out about the below things.
>
>Building current source for 3 boards (3 threads, 4 jobs per thread)
>   sandbox:  +   sandbox_noblk
>+drivers/mmc/mmc.c:25:6: error: ‘SZ_16K’ undeclared here (not in a function)
>+  0,  SZ_16K / 512,  SZ_32K / 512,
>+      ^
>+drivers/mmc/mmc.c:25:21: error: ‘SZ_32K’ undeclared here (not in a function)


This is because sanbox.h does not include linux/sizes.h.
Since mmc also use SZ_xx now, I think better include linux/sizes.h in mmc.h

Will use V4 to fix this. 

Thanks,
Peng.

>+                     ^
>
>When i have checked, it's not error for only sandbox_noblk.
>
>       arm:  +   dserve_dsrv9703c
>+../drivers/mmc/mmc.c:25:6: error: ‘SZ_16K’ undeclared here (not in a function)
>+  0,  SZ_16K / 512,  SZ_32K / 512,
>+      ^
>+../drivers/mmc/mmc.c:25:21: error: ‘SZ_32K’ undeclared here (not in a function)
>+                     ^
>+../drivers/mmc/mmc.c:26:2: error: ‘SZ_64K’ undeclared here (not in a function)
>+  SZ_64K / 512, SZ_128K / 512,  SZ_256K / 512,
>+  ^
>+../drivers/mmc/mmc.c:26:16: error: ‘SZ_128K’ undeclared here (not in a function)
>+                ^
>+../drivers/mmc/mmc.c:26:32: error: ‘SZ_256K’ undeclared here (not in a function)
>+                                ^
>+../drivers/mmc/mmc.c:27:2: error: ‘SZ_512K’ undeclared here (not in a function)
>+  SZ_512K / 512, SZ_1M / 512,  SZ_2M / 512,
>+../drivers/mmc/mmc.c:27:17: error: ‘SZ_1M’ undeclared here (not in a function)
>+                 ^
>+../drivers/mmc/mmc.c:27:31: error: ‘SZ_2M’ undeclared here (not in a function)
>+                               ^
>+../drivers/mmc/mmc.c:28:2: error: ‘SZ_4M’ undeclared here (not in a function)
>+  SZ_4M / 512, SZ_8M / 512,  (SZ_8M + SZ_4M) / 512,
>+../drivers/mmc/mmc.c:28:15: error: ‘SZ_8M’ undeclared here (not in a function)
>+               ^
>+../drivers/mmc/mmc.c:29:2: error: ‘SZ_16M’ undeclared here (not in a function)
>+  SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
>+../drivers/mmc/mmc.c:29:40: error: ‘SZ_32M’ undeclared here (not in a function)
>+                                        ^
>+../drivers/mmc/mmc.c:29:54: error: ‘SZ_64M’ undeclared here (not in a function)
>
>02: mmc: sd: extracting erase timeout information from sd status
>       arm:  +   firefly-rk3288
>+../drivers/mmc/mmc.c:25:6: error: ‘SZ_16K’ undeclared here (not in a function)
>+  0,  SZ_16K / 512,  SZ_32K / 512,
>+      ^
>+../drivers/mmc/mmc.c:25:21: error: ‘SZ_32K’ undeclared here (not in a function)
>+                     ^
>+../drivers/mmc/mmc.c:26:2: error: ‘SZ_64K’ undeclared here (not in a function)
>+  SZ_64K / 512, SZ_128K / 512,  SZ_256K / 512,
>+  ^
>+../drivers/mmc/mmc.c:26:16: error: ‘SZ_128K’ undeclared here (not in a function)
>+                ^
>+../drivers/mmc/mmc.c:26:32: error: ‘SZ_256K’ undeclared here (not in a function)
>+                                ^
>+../drivers/mmc/mmc.c:27:2: error: ‘SZ_512K’ undeclared here (not in a function)
>+  SZ_512K / 512, SZ_1M / 512,  SZ_2M / 512,
>+../drivers/mmc/mmc.c:27:17: error: ‘SZ_1M’ undeclared here (not in a function)
>+                 ^
>+../drivers/mmc/mmc.c:27:31: error: ‘SZ_2M’ undeclared here (not in a function)
>+                               ^
>+../drivers/mmc/mmc.c:28:2: error: ‘SZ_4M’ undeclared here (not in a function)
>+  SZ_4M / 512, SZ_8M / 512,  (SZ_8M + SZ_4M) / 512,
>+../drivers/mmc/mmc.c:28:15: error: ‘SZ_8M’ undeclared here (not in a function)
>+               ^
>+../drivers/mmc/mmc.c:29:2: error: ‘SZ_16M’ undeclared here (not in a function)
>+  SZ_16M / 512, (SZ_16M + SZ_8M) / 512, SZ_32M / 512, SZ_64M / 512,
>+../drivers/mmc/mmc.c:29:40: error: ‘SZ_32M’ undeclared here (not in a function)
>+                                        ^
>+../drivers/mmc/mmc.c:29:54: error: ‘SZ_64M’ undeclared here (not in a function)
>+                                                      ^
>
>Could you check this?
>
>Best Regards,
>Jaehoon Chung
>
>>
>> Best Regards,
>> Jaehoon Chung
>>
>>> ---
>>>
>>> I dropped patch [2,3,4]/5 in V2, which is not a must in this optimization case.
>>>
>>> V3:
>>>  No change.
>>>
>>> V2:
>>>  Address Jaehoon's comments for V1
>>>
>>>  drivers/mmc/mmc.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>  include/mmc.h     |  8 +++++++
>>>  2 files changed, 76 insertions(+)
>>>
>>> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
>>> index 43ea0bb..0312da9 100644
>>> --- a/drivers/mmc/mmc.c
>>> +++ b/drivers/mmc/mmc.c
>>> @@ -21,6 +21,14 @@
>>>  #include <div64.h>
>>>  #include "mmc_private.h"
>>>
>>> +static const unsigned int sd_au_size[] = {
>>> +	0,		SZ_16K / 512,		SZ_32K / 512,
>>> +	SZ_64K / 512,	SZ_128K / 512,		SZ_256K / 512,
>>> +	SZ_512K / 512,	SZ_1M / 512,		SZ_2M / 512,
>>> +	SZ_4M / 512,	SZ_8M / 512,		(SZ_8M + SZ_4M) / 512,
>>> +	SZ_16M / 512,	(SZ_16M + SZ_8M) / 512,	SZ_32M / 512,	SZ_64M / 512,
>>> +};
>>> +
>>>  #ifndef CONFIG_DM_MMC_OPS
>>>  __weak int board_mmc_getwp(struct mmc *mmc)
>>>  {
>>> @@ -945,6 +953,62 @@ retry_scr:
>>>  	return 0;
>>>  }
>>>
>>> +static int sd_read_ssr(struct mmc *mmc)
>>> +{
>>> +	int err, i;
>>> +	struct mmc_cmd cmd;
>>> +	ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
>>> +	struct mmc_data data;
>>> +	int timeout = 3;
>>> +	unsigned int au, eo, et, es;
>>> +
>>> +	cmd.cmdidx = MMC_CMD_APP_CMD;
>>> +	cmd.resp_type = MMC_RSP_R1;
>>> +	cmd.cmdarg = mmc->rca << 16;
>>> +
>>> +	err = mmc_send_cmd(mmc, &cmd, NULL);
>>> +	if (err)
>>> +		return err;
>>> +
>>> +	cmd.cmdidx = SD_CMD_APP_SD_STATUS;
>>> +	cmd.resp_type = MMC_RSP_R1;
>>> +	cmd.cmdarg = 0;
>>> +
>>> +retry_ssr:
>>> +	data.dest = (char *)ssr;
>>> +	data.blocksize = 64;
>>> +	data.blocks = 1;
>>> +	data.flags = MMC_DATA_READ;
>>> +
>>> +	err = mmc_send_cmd(mmc, &cmd, &data);
>>> +	if (err) {
>>> +		if (timeout--)
>>> +			goto retry_ssr;
>>> +
>>> +		return err;
>>> +	}
>>> +
>>> +	for (i = 0; i < 16; i++)
>>> +		ssr[i] = be32_to_cpu(ssr[i]);
>>> +
>>> +	au = (ssr[2] >> 12) & 0xF;
>>> +	if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
>>> +		mmc->ssr.au = sd_au_size[au];
>>> +		es = (ssr[3] >> 24) & 0xFF;
>>> +		es |= (ssr[2] & 0xFF) << 8;
>>> +		et = (ssr[3] >> 18) & 0x3F;
>>> +		if (es && et) {
>>> +			eo = (ssr[3] >> 16) & 0x3;
>>> +			mmc->ssr.erase_timeout = (et * 1000) / es;
>>> +			mmc->ssr.erase_offset = eo * 1000;
>>> +		}
>>> +	} else {
>>> +		debug("Invalid Allocation Unit Size.\n");
>>> +	}
>>> +
>>> +	return 0;
>>> +}
>>> +
>>>  /* frequency bases */
>>>  /* divided by 10 to be nice to platforms without floating point */
>>>  static const int fbase[] = {
>>> @@ -1350,6 +1414,10 @@ static int mmc_startup(struct mmc *mmc)
>>>  			mmc_set_bus_width(mmc, 4);
>>>  		}
>>>
>>> +		err = sd_read_ssr(mmc);
>>> +		if (err)
>>> +			return err;
>>> +
>>>  		if (mmc->card_caps & MMC_MODE_HS)
>>>  			mmc->tran_speed = 50000000;
>>>  		else
>>> diff --git a/include/mmc.h b/include/mmc.h
>>> index aa6d5d1..af2595c 100644
>>> --- a/include/mmc.h
>>> +++ b/include/mmc.h
>>> @@ -102,6 +102,7 @@
>>>  #define SD_CMD_SWITCH_UHS18V		11
>>>
>>>  #define SD_CMD_APP_SET_BUS_WIDTH	6
>>> +#define SD_CMD_APP_SD_STATUS		13
>>>  #define SD_CMD_ERASE_WR_BLK_START	32
>>>  #define SD_CMD_ERASE_WR_BLK_END		33
>>>  #define SD_CMD_APP_SEND_OP_COND		41
>>> @@ -392,6 +393,12 @@ struct mmc_config {
>>>  	unsigned char part_type;
>>>  };
>>>
>>> +struct sd_ssr {
>>> +	unsigned int au;		/* In sectors */
>>> +	unsigned int erase_timeout;	/* In milliseconds */
>>> +	unsigned int erase_offset;	/* In milliseconds */
>>> +};
>>> +
>>>  /*
>>>   * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
>>>   * with mmc_get_mmc_dev().
>>> @@ -426,6 +433,7 @@ struct mmc {
>>>  	uint write_bl_len;
>>>  	uint erase_grp_size;	/* in 512-byte sectors */
>>>  	uint hc_wp_grp_size;	/* in 512-byte sectors */
>>> +	struct sd_ssr	ssr;	/* SD status register */
>>>  	u64 capacity;
>>>  	u64 capacity_user;
>>>  	u64 capacity_boot;
>>>
>>
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot@lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
>>
>>
>>
>
diff mbox

Patch

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 43ea0bb..0312da9 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -21,6 +21,14 @@ 
 #include <div64.h>
 #include "mmc_private.h"
 
+static const unsigned int sd_au_size[] = {
+	0,		SZ_16K / 512,		SZ_32K / 512,
+	SZ_64K / 512,	SZ_128K / 512,		SZ_256K / 512,
+	SZ_512K / 512,	SZ_1M / 512,		SZ_2M / 512,
+	SZ_4M / 512,	SZ_8M / 512,		(SZ_8M + SZ_4M) / 512,
+	SZ_16M / 512,	(SZ_16M + SZ_8M) / 512,	SZ_32M / 512,	SZ_64M / 512,
+};
+
 #ifndef CONFIG_DM_MMC_OPS
 __weak int board_mmc_getwp(struct mmc *mmc)
 {
@@ -945,6 +953,62 @@  retry_scr:
 	return 0;
 }
 
+static int sd_read_ssr(struct mmc *mmc)
+{
+	int err, i;
+	struct mmc_cmd cmd;
+	ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
+	struct mmc_data data;
+	int timeout = 3;
+	unsigned int au, eo, et, es;
+
+	cmd.cmdidx = MMC_CMD_APP_CMD;
+	cmd.resp_type = MMC_RSP_R1;
+	cmd.cmdarg = mmc->rca << 16;
+
+	err = mmc_send_cmd(mmc, &cmd, NULL);
+	if (err)
+		return err;
+
+	cmd.cmdidx = SD_CMD_APP_SD_STATUS;
+	cmd.resp_type = MMC_RSP_R1;
+	cmd.cmdarg = 0;
+
+retry_ssr:
+	data.dest = (char *)ssr;
+	data.blocksize = 64;
+	data.blocks = 1;
+	data.flags = MMC_DATA_READ;
+
+	err = mmc_send_cmd(mmc, &cmd, &data);
+	if (err) {
+		if (timeout--)
+			goto retry_ssr;
+
+		return err;
+	}
+
+	for (i = 0; i < 16; i++)
+		ssr[i] = be32_to_cpu(ssr[i]);
+
+	au = (ssr[2] >> 12) & 0xF;
+	if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
+		mmc->ssr.au = sd_au_size[au];
+		es = (ssr[3] >> 24) & 0xFF;
+		es |= (ssr[2] & 0xFF) << 8;
+		et = (ssr[3] >> 18) & 0x3F;
+		if (es && et) {
+			eo = (ssr[3] >> 16) & 0x3;
+			mmc->ssr.erase_timeout = (et * 1000) / es;
+			mmc->ssr.erase_offset = eo * 1000;
+		}
+	} else {
+		debug("Invalid Allocation Unit Size.\n");
+	}
+
+	return 0;
+}
+
 /* frequency bases */
 /* divided by 10 to be nice to platforms without floating point */
 static const int fbase[] = {
@@ -1350,6 +1414,10 @@  static int mmc_startup(struct mmc *mmc)
 			mmc_set_bus_width(mmc, 4);
 		}
 
+		err = sd_read_ssr(mmc);
+		if (err)
+			return err;
+
 		if (mmc->card_caps & MMC_MODE_HS)
 			mmc->tran_speed = 50000000;
 		else
diff --git a/include/mmc.h b/include/mmc.h
index aa6d5d1..af2595c 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -102,6 +102,7 @@ 
 #define SD_CMD_SWITCH_UHS18V		11
 
 #define SD_CMD_APP_SET_BUS_WIDTH	6
+#define SD_CMD_APP_SD_STATUS		13
 #define SD_CMD_ERASE_WR_BLK_START	32
 #define SD_CMD_ERASE_WR_BLK_END		33
 #define SD_CMD_APP_SEND_OP_COND		41
@@ -392,6 +393,12 @@  struct mmc_config {
 	unsigned char part_type;
 };
 
+struct sd_ssr {
+	unsigned int au;		/* In sectors */
+	unsigned int erase_timeout;	/* In milliseconds */
+	unsigned int erase_offset;	/* In milliseconds */
+};
+
 /*
  * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
  * with mmc_get_mmc_dev().
@@ -426,6 +433,7 @@  struct mmc {
 	uint write_bl_len;
 	uint erase_grp_size;	/* in 512-byte sectors */
 	uint hc_wp_grp_size;	/* in 512-byte sectors */
+	struct sd_ssr	ssr;	/* SD status register */
 	u64 capacity;
 	u64 capacity_user;
 	u64 capacity_boot;