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sdmmc: don't set data_expected on SET_BUS_WIDTH command

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SET_BUS_WIDTH is not a data transfer command. Extensive search in the
host datasheet and SD card spec did not reveal the origin of this hack
or 'feature'. Further testing showed that removing this does not lead to
regressions.
This commit is contained in:
Ivan Grokhotkov
2017-08-18 00:12:05 +08:00
parent 42de5fb76d
commit 84d6793f77
2 changed files with 0 additions and 10 deletions
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4
components/driver/sdmmc_transaction.c
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@@ -246,10 +246,6 @@ static sdmmc_hw_cmd_t make_hw_cmd(sdmmc_command_t* cmd)
} else {
res.wait_complete = 1;
}
if (s_is_app_cmd && cmd->opcode == SD_APP_SET_BUS_WIDTH) {
res.send_auto_stop = 1;
res.data_expected = 1;
}
if (cmd->opcode == MMC_GO_IDLE_STATE) {
res.send_init = 1;
}