AndrewD commented on a change in pull request #5835:
URL: https://github.com/apache/incubator-nuttx/pull/5835#discussion_r834056629
##########
File path: include/nuttx/sdio.h
##########
@@ -477,6 +477,7 @@
#define SDIO_CAPS_DMABEFOREWRITE 0x04 /* Bit 2=1: Executes DMA before write
command */
#define SDIO_CAPS_4BIT 0x08 /* Bit 3=1: Supports 4 bit operation */
#define SDIO_CAPS_8BIT 0x10 /* Bit 4=1: Supports 8 bit operation */
+#define SDIO_CAPS_4BIT_ONLY 0x20 /* Bit 5=1: Supports 4-bit only
operation */
Review comment:
The issue is that the peripheral does not support 1bit mode, so 4 bit
mode must be selected _before_ checking the SCR register.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
