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/openbmc/linux/arch/arc/boot/dts/ |
H A D | hsdk.dts | 6afa3bcf Fri Sep 08 13:42:33 CDT 2017 Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ARC: [plat-hsdk] sdio: Temporary fix of sdio ciu frequency
DW sdio controller has external ciu clock divider controlled via register in SDIO IP. Due to its unexpected default value (it should divide by 1 but it divides by 8) SDIO IP uses wrong ciu clock and works unstable
So add temporary fix and change clock frequency from 100000000 to 12500000 Hz until we fix dw sdio driver itself.
Fixes SNPS STAR 9001204800
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> 6afa3bcf Fri Sep 08 13:42:33 CDT 2017 Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> ARC: [plat-hsdk] sdio: Temporary fix of sdio ciu frequency DW sdio controller has external ciu clock divider controlled via register in SDIO IP. Due to its unexpected default value (it should divide by 1 but it divides by 8) SDIO IP uses wrong ciu clock and works unstable So add temporary fix and change clock frequency from 100000000 to 12500000 Hz until we fix dw sdio driver itself. Fixes SNPS STAR 9001204800 Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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