Messages in this thread Patch in this message | | | From | <> | Subject | [PATCH] misc: rtsx: Improve compatibility for rts5261 | Date | Wed, 15 Apr 2020 10:37:17 +0800 |
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From: Rui Feng <rui_feng@realsil.com.cn>
Change initial clock to improve compatibility for rts5261
Signed-off-by: Rui Feng <rui_feng@realsil.com.cn> --- drivers/misc/cardreader/rts5261.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c index bc4967a6efa1..547db5ffd3f6 100644 --- a/drivers/misc/cardreader/rts5261.c +++ b/drivers/misc/cardreader/rts5261.c @@ -639,8 +639,13 @@ int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock, if (initial_mode) { /* We use 250k(around) here, in initial stage */ - clk_divider = SD_CLK_DIVIDE_128; - card_clock = 30000000; + if (is_version(pcr, PID_5261, IC_VER_D)) { + clk_divider = SD_CLK_DIVIDE_256; + card_clock = 60000000; + } else { + clk_divider = SD_CLK_DIVIDE_128; + card_clock = 30000000; + } } else { clk_divider = SD_CLK_DIVIDE_0; } -- 2.17.1
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