| Message ID | 1472699619-4368-1-git-send-email-peng.fan@nxp.com |
|---|---|
| State | Accepted |
| Commit | 3697e5992f89c923aca17d7d9174739da28cb3cd |
| Delegated to: | Jaehoon Chung |
| Headers | show |
Hi Peng, On 09/01/2016 12:13 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. Sorry for late..I'm testing with your patch on my SD-card. After that, I will apply yours. Before applied this, i will check more carefully for not doing previous my mistake. Best Regards, Jaehoon Chung > > 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> > --- > > V4: > include linux/sizes.h in mmc.h to avoid build break. > > 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 | 9 ++++++++ > 2 files changed, 77 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..e815eb3 100644 > --- a/include/mmc.h > +++ b/include/mmc.h > @@ -11,6 +11,7 @@ > #define _MMC_H_ > > #include <linux/list.h> > +#include <linux/sizes.h> > #include <linux/compiler.h> > #include <part.h> > > @@ -102,6 +103,7 @@ > #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 +394,12 @@ 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 +434,7 @@ 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; >
Hi Jaehoon, On Wed, Sep 07, 2016 at 03:52:53PM +0900, Jaehoon Chung wrote: >Hi Peng, > >On 09/01/2016 12:13 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. > >Sorry for late..I'm testing with your patch on my SD-card. >After that, I will apply yours. Before applied this, i will check more carefully for not doing previous my mistake. The issue in the previous patch set is that linux/size.h is not included in sandbox.h. In this patchset, I include linux/size.h in mmc.h:) Thanks, Peng. > >Best Regards, >Jaehoon Chung > >> >> 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> >> --- >> >> V4: >> include linux/sizes.h in mmc.h to avoid build break. >> >> 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 | 9 ++++++++ >> 2 files changed, 77 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..e815eb3 100644 >> --- a/include/mmc.h >> +++ b/include/mmc.h >> @@ -11,6 +11,7 @@ >> #define _MMC_H_ >> >> #include <linux/list.h> >> +#include <linux/sizes.h> >> #include <linux/compiler.h> >> #include <part.h> >> >> @@ -102,6 +103,7 @@ >> #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 +394,12 @@ 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 +434,7 @@ 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; >> >
Hi Peng, On 09/08/2016 10:42 AM, Peng Fan wrote: > Hi Jaehoon, > On Wed, Sep 07, 2016 at 03:52:53PM +0900, Jaehoon Chung wrote: >> Hi Peng, >> >> On 09/01/2016 12:13 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. >> >> Sorry for late..I'm testing with your patch on my SD-card. >> After that, I will apply yours. Before applied this, i will check more carefully for not doing previous my mistake. > > The issue in the previous patch set is that linux/size.h is not included in sandbox.h. > In this patchset, I include linux/size.h in mmc.h:) Right, i have checked the test of building with your patch. There is no problem..just i want to run your patch for erasing SD-card. Could you wait for one day? Best Regards, Jaehoon Chung > > Thanks, > Peng. > >> >> Best Regards, >> Jaehoon Chung >> >>> >>> 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> >>> --- >>> >>> V4: >>> include linux/sizes.h in mmc.h to avoid build break. >>> >>> 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 | 9 ++++++++ >>> 2 files changed, 77 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..e815eb3 100644 >>> --- a/include/mmc.h >>> +++ b/include/mmc.h >>> @@ -11,6 +11,7 @@ >>> #define _MMC_H_ >>> >>> #include <linux/list.h> >>> +#include <linux/sizes.h> >>> #include <linux/compiler.h> >>> #include <part.h> >>> >>> @@ -102,6 +103,7 @@ >>> #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 +394,12 @@ 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 +434,7 @@ 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; >>> >> > > >
On Thu, Sep 08, 2016 at 10:49:53AM +0900, Jaehoon Chung wrote: >Hi Peng, > >On 09/08/2016 10:42 AM, Peng Fan wrote: >> Hi Jaehoon, >> On Wed, Sep 07, 2016 at 03:52:53PM +0900, Jaehoon Chung wrote: >>> Hi Peng, >>> >>> On 09/01/2016 12:13 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. >>> >>> Sorry for late..I'm testing with your patch on my SD-card. >>> After that, I will apply yours. Before applied this, i will check more carefully for not doing previous my mistake. >> >> The issue in the previous patch set is that linux/size.h is not included in sandbox.h. >> In this patchset, I include linux/size.h in mmc.h:) > >Right, i have checked the test of building with your patch. >There is no problem..just i want to run your patch for erasing SD-card. Could you wait for one day? Yeah. Ok for me :) Thanks, Peng.
Hi Peng, On 09/08/2016 10:51 AM, Peng Fan wrote: > On Thu, Sep 08, 2016 at 10:49:53AM +0900, Jaehoon Chung wrote: >> Hi Peng, >> >> On 09/08/2016 10:42 AM, Peng Fan wrote: >>> Hi Jaehoon, >>> On Wed, Sep 07, 2016 at 03:52:53PM +0900, Jaehoon Chung wrote: >>>> Hi Peng, >>>> >>>> On 09/01/2016 12:13 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. >>>> >>>> Sorry for late..I'm testing with your patch on my SD-card. >>>> After that, I will apply yours. Before applied this, i will check more carefully for not doing previous my mistake. >>> >>> The issue in the previous patch set is that linux/size.h is not included in sandbox.h. >>> In this patchset, I include linux/size.h in mmc.h:) >> >> Right, i have checked the test of building with your patch. >> There is no problem..just i want to run your patch for erasing SD-card. Could you wait for one day? > > Yeah. Ok for me :) I have tested with your patch.. (Same command yours "time mmc erase 0x100000 0x2000") Before applied your patch..it took 18.212 seconds After applied your patch. 0.548 seconds. Great! I applied on u-boot-mmc. Thanks! > > Thanks, > Peng. > > >
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..e815eb3 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -11,6 +11,7 @@ #define _MMC_H_ #include <linux/list.h> +#include <linux/sizes.h> #include <linux/compiler.h> #include <part.h> @@ -102,6 +103,7 @@ #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 +394,12 @@ 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 +434,7 @@ 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;
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> --- V4: include linux/sizes.h in mmc.h to avoid build break. 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 | 9 ++++++++ 2 files changed, 77 insertions(+)