p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

mmc: core: sdio: Set SDIO clock of SDR104 to 150MHz for Marvell 8887 chip 

This patch uses limit clock rate quirk to reduce clock rate
for "SDR104" mode on IMX side for Marvell 8887
WiFi + Bluetooth chip side, as Marvell does not recommend
to use SDIO at the speed of higher than 150MHz.

Signed-off-by: Diwakar Sharma <diwakar.sharma@in.bosch.com>
Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Diwakar Sharma 2018-04-10 12:30:32 +05:30 committed by Ulf Hansson
parent ebc5a1bf4f
commit 8ccd66f258
2 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/mmc/core/quirks.h
View File

@ -132,6 +132,9 @@ static const struct mmc_fixup sdio_fixup_methods[] = {
SDIO_FIXUP(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_F0,
add_quirk, MMC_QUIRK_BROKEN_IRQ_POLLING),
SDIO_FIXUP(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887WLAN,
add_limit_rate_quirk, 150000000),
END_FIXUP
};

1
include/linux/mmc/sdio_ids.h
View File

@ -55,6 +55,7 @@
#define SDIO_DEVICE_ID_MARVELL_8688WLAN 0x9104
#define SDIO_DEVICE_ID_MARVELL_8688BT 0x9105
#define SDIO_DEVICE_ID_MARVELL_8797_F0 0x9128
#define SDIO_DEVICE_ID_MARVELL_8887WLAN 0x9134
#define SDIO_VENDOR_ID_SIANO 0x039a
#define SDIO_DEVICE_ID_SIANO_NOVA_B0 0x0201