Searched hist:"2 c8ef2ae6b8103da5b6b82b2252877d61c2522bf" (Results 1 – 2 of 2) sorted by relevance
| /rk3399_ARM-atf/drivers/rpi3/sdhost/ |
| H A D | rpi3_sdhost.c | 2c8ef2ae6b8103da5b6b82b2252877d61c2522bf Tue Feb 12 14:41:06 UTC 2019 Ying-Chun Liu (PaulLiu) <paulliu@debian.org> rpi3: sdhost: SDHost driver improvement
This commit improves the SDHost driver for RPi3 as following:
* Unblock MMC_CMD(17). Using MMC_CMD(17) is more efficient on
block reading.
* In some low probability that SEND_OP_COND might results CRC7
error. We can consider that the command runs correctly. We don't
need to retry this command so removing the code for retry.
* Using MMC_BUS_WIDTH_1 as MMC default value to improve the stability.
* Increase the clock to 50Mhz in data mode to speed up the io.
* Change the pull resistors configuration to gain more stability.
Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>
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| /rk3399_ARM-atf/include/drivers/rpi3/sdhost/ |
| H A D | rpi3_sdhost.h | 2c8ef2ae6b8103da5b6b82b2252877d61c2522bf Tue Feb 12 14:41:06 UTC 2019 Ying-Chun Liu (PaulLiu) <paulliu@debian.org> rpi3: sdhost: SDHost driver improvement
This commit improves the SDHost driver for RPi3 as following:
* Unblock MMC_CMD(17). Using MMC_CMD(17) is more efficient on
block reading.
* In some low probability that SEND_OP_COND might results CRC7
error. We can consider that the command runs correctly. We don't
need to retry this command so removing the code for retry.
* Using MMC_BUS_WIDTH_1 as MMC default value to improve the stability.
* Increase the clock to 50Mhz in data mode to speed up the io.
* Change the pull resistors configuration to gain more stability.
Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>
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