Re: [PATCH v2 1/2] mmc/host/rtsx: Configure SD_CFG2 register in sd_rw_multi

2012-11-19 Thread Chris Ball
Hi, On Mon, Nov 19 2012, wwang wrote: > It's about compatibility issue. The default value of SD_CFG2 is proper > for writing data. But for reading sequence, the timing is not good > enough. So in some extreme circumstance, card reader may sample the > response data from the card as good even if t

Re: [PATCH v2 1/2] mmc/host/rtsx: Configure SD_CFG2 register in sd_rw_multi

2012-11-19 Thread wwang
于 2012年11月20日 10:21, Chris Ball 写道: Hi, Sorry to be pedantic, but: On Mon, Nov 19 2012, wei_w...@realsil.com.cn wrote: For Realtek card reader, internal regsiter SD_CFG2 should be configured before transferring data. In the prior version, the value of this register has been calculated, but for

Re: [PATCH v2 1/2] mmc/host/rtsx: Configure SD_CFG2 register in sd_rw_multi

2012-11-19 Thread Chris Ball
Hi, Sorry to be pedantic, but: On Mon, Nov 19 2012, wei_w...@realsil.com.cn wrote: > For Realtek card reader, internal regsiter SD_CFG2 should be configured > before transferring data. In the prior version, the value of this register > has been calculated, but forgotten to write back to the inter

[PATCH v2 1/2] mmc/host/rtsx: Configure SD_CFG2 register in sd_rw_multi

2012-11-19 Thread wei_wang
From: Wei WANG For Realtek card reader, internal regsiter SD_CFG2 should be configured before transferring data. In the prior version, the value of this register has been calculated, but forgotten to write back to the internal register. Signed-off-by: Wei WANG --- drivers/mmc/host/rtsx_pci_sdm