From 3e44ddd44ea59354221b811605745ec453130c06 Mon Sep 17 00:00:00 2001 From: Jarkko Lavinen Date: Thu, 27 Nov 2008 14:30:32 +0200 Subject: mmc: Accept EXT_CSD rev 1.3 since it is backwards compatible with 1.2 Signed-off-by: Jarkko Lavinen Signed-off-by: Pierre Ossman --- drivers/mmc/core/mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mmc/core') diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index c232d11a7ed4..06084dbf1277 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -208,7 +208,7 @@ static int mmc_read_ext_csd(struct mmc_card *card) } ext_csd_struct = ext_csd[EXT_CSD_REV]; - if (ext_csd_struct > 2) { + if (ext_csd_struct > 3) { printk(KERN_ERR "%s: unrecognised EXT_CSD structure " "version %d\n", mmc_hostname(card->host), ext_csd_struct); -- cgit v1.2.3-59-g8ed1b From 9d9f25c036dd584db175552a7d162403d3ab54b3 Mon Sep 17 00:00:00 2001 From: Wolfgang Muees Date: Tue, 7 Apr 2009 14:48:16 +0100 Subject: mmc_spi: do not check CID and CSD blocks with CRC16 Some cards are not able to calculate a valid CRC16 value for CID and CSD reads (CRC for 512 byte data blocks is OK). By moving the CRC enable after the read of CID and CSD, these cards can be used. This patch was tested with a faulty 8 GByte takeMS Class 6 SDHC card. This patch was suggested by Pierre Ossman. Signed-off-by: Wolfgang Muees Signed-off-by: Pierre Ossman --- drivers/mmc/core/sd.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) (limited to 'drivers/mmc/core') diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index 26fc098d77cd..cd81c395e164 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -362,15 +362,6 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, if (err) goto err; - /* - * For SPI, enable CRC as appropriate. - */ - if (mmc_host_is_spi(host)) { - err = mmc_spi_set_crc(host, use_spi_crc); - if (err) - goto err; - } - /* * Fetch CID from card. */ @@ -457,6 +448,18 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr, goto free_card; } + /* + * For SPI, enable CRC as appropriate. + * This CRC enable is located AFTER the reading of the + * card registers because some SDHC cards are not able + * to provide valid CRCs for non-512-byte blocks. + */ + if (mmc_host_is_spi(host)) { + err = mmc_spi_set_crc(host, use_spi_crc); + if (err) + goto free_card; + } + /* * Attempt to change to high-speed (if supported) */ -- cgit v1.2.3-59-g8ed1b From 79bccc5aefb4e64e651abe04f78c3e6bf8acd6f0 Mon Sep 17 00:00:00 2001 From: "José M. Fernández" Date: Tue, 10 Mar 2009 02:21:21 +0100 Subject: mmc: increase power up delay MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The TI controller on Toshiba Tecra M5 needs more time to power up or the cards will init incorrectly or not at all. Signed-off-by: José M. Fernández Signed-off-by: Pierre Ossman --- drivers/mmc/core/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/mmc/core') diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index fa073ab3fa34..264911732756 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -706,7 +706,7 @@ static void mmc_power_up(struct mmc_host *host) * This delay should be sufficient to allow the power supply * to reach the minimum voltage. */ - mmc_delay(2); + mmc_delay(10); host->ios.clock = host->f_min; host->ios.power_mode = MMC_POWER_ON; @@ -716,7 +716,7 @@ static void mmc_power_up(struct mmc_host *host) * This delay must be at least 74 clock sizes, or 1 ms, or the * time required to reach a stable voltage. */ - mmc_delay(2); + mmc_delay(10); } static void mmc_power_off(struct mmc_host *host) -- cgit v1.2.3-59-g8ed1b