Tool/software: Linux
HI：
Just now we visit the am5728's devicetree.
and found the mmc's devicetree is like below and we don't know how to change it
&mmc4 {
status = "okay";
pinctrl-names = "default-rev11", "hs-rev11";
pinctrl-0 = <&mmc4_pins_default &mmc4_iodelay_ds_rev11_conf>;;
pinctrl-1 = <&mmc4_pins_hs &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
}
We want to know :
1 the mmc4 driver is How to choose this parameter such as mmc4_pins_default and mmc4_pins_hs
2 what does this mean by "mmc4_iodelay_ds_rev11_conf"
mmc4_iodelay_ds_rev11_conf: mmc4_iodelay_ds_rev11_conf {
pinctrl-pin-array = <
0x840 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_IN */
0x848 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_CTSN_OUT */
0x84c A_DELAY_PS(96) G_DELAY_PS(0) /* CFG_UART1_RTSN_IN */
0x850 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OEN */
0x854 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART1_RTSN_OUT */
0x870 A_DELAY_PS(582) G_DELAY_PS(0) /* CFG_UART2_CTSN_IN */
0x874 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OEN */
0x878 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_CTSN_OUT */
0x87c A_DELAY_PS(391) G_DELAY_PS(0) /* CFG_UART2_RTSN_IN */
0x880 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OEN */
0x884 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RTSN_OUT */
0x888 A_DELAY_PS(561) G_DELAY_PS(0) /* CFG_UART2_RXD_IN */
0x88c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OEN */
0x890 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_RXD_OUT */
0x894 A_DELAY_PS(588) G_DELAY_PS(0) /* CFG_UART2_TXD_IN */
0x898 A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OEN */
0x89c A_DELAY_PS(0) G_DELAY_PS(0) /* CFG_UART2_TXD_OUT */
>;
};
Thanks
Best regards
xixi
