diff options
Diffstat (limited to 'drivers/mmc/core/mmc_ops.c')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 845ce7c..15b64318 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -17,6 +17,8 @@ #include <linux/mmc/card.h> #include <linux/mmc/mmc.h> +#include <plat/cpu.h> + #include "core.h" #include "mmc_ops.h" @@ -334,6 +336,7 @@ int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd) return mmc_send_cxd_data(card, card->host, MMC_SEND_EXT_CSD, ext_csd, 512); } +EXPORT_SYMBOL_GPL(mmc_send_ext_csd); int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp) { @@ -400,6 +403,10 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, /* Must check status to be sure of no errors */ do { +#if defined(CONFIG_MACH_SMDKC210) || defined(CONFIG_MACH_SMDKV310) + /* HACK: in case of smdkc210, smdkv310 has problem at inand */ + mmc_delay(3); +#endif err = mmc_send_status(card, &status); if (err) return err; @@ -547,3 +554,38 @@ int mmc_bus_test(struct mmc_card *card, u8 bus_width) err = mmc_send_bus_test(card, card->host, MMC_BUS_TEST_R, width); return err; } + +int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status) +{ + struct mmc_command cmd = {0}; + unsigned int opcode; + int err; + + if (!card->ext_csd.hpi) { + pr_warning("%s: Card didn't support HPI command\n", + mmc_hostname(card->host)); + return -EINVAL; + } + + opcode = card->ext_csd.hpi_cmd; + if (opcode == MMC_STOP_TRANSMISSION) + cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; + else if (opcode == MMC_SEND_STATUS) + cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; + + cmd.opcode = opcode; + cmd.arg = card->rca << 16 | 1; + cmd.cmd_timeout_ms = card->ext_csd.out_of_int_time; + + err = mmc_wait_for_cmd(card->host, &cmd, 0); + if (err) { + pr_warn("%s: error %d interrupting operation. " + "HPI command response %#x\n", mmc_hostname(card->host), + err, cmd.resp[0]); + return err; + } + if (status) + *status = cmd.resp[0]; + + return 0; +} |