Hi Peng, On Tue, Apr 26, 2016 at 3:54 AM, Peng Fan <van.free...@gmail.com> wrote: > Introudce wp_enable. If want to check WPSPL, then in board code, > need to set wp_enable to 1. > > Take i.MX6UL for example, to some boards, they do not use WP singal, > so they does not configure USDHC1_WP_SELECT_INPUT, and its default > value is 0(GPIO1_IO02). However GPIO1_IO02 is muxed for i2c usage and > SION bit set. So USDHC controller can always get wp signal and WPSPL > shows write protect and blocks driver continuing. This is not what > we want to see, so add wp_enable, and if set to 0, just omit the > WPSPL checking and this does not effect normal working of usdhc > controller. > > To DT case, add wp_gpio, if there is wp-gpios provided in dts, > wp_enable is set to 1; if no, set to 0. > > Signed-off-by: Peng Fan <van.free...@gmail.com> > Cc: Pantelis Antoniou <pa...@antoniou-consulting.com> > Cc: York Sun <york....@nxp.com> > Cc: Stefano Babic <sba...@denx.de>
Just saw this issue on a mx6ul pico board: after adding I2C support then the eMMC could not longer be written: => saveenv Saving Environment to MMC... Writing to MMC(0)... The SD card is locked. Can not write to a locked card. mmc write failed failed Your patch allows me to write to the eMMC succesfully: Tested-by: Fabio Estevam <fabio.este...@nxp.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
