From: Otavio Salvador <otavio@ossystems.com.br>
Date: Sat, 16 Mar 2013 08:05:05 +0000 (+0000)
Subject: mx6qsabresd: Document the mapping of USDHC[2-4]
X-Git-Tag: v2013.04-rc3~1^2~6^2~16
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=28ff917c28977e954d47148562a42d9468bfae62;p=platform%2Fkernel%2Fu-boot.git

mx6qsabresd: Document the mapping of USDHC[2-4]

This documents the SD card identifier so it is easier for user to spot
which card number will be used, if need.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---

diff --git a/board/freescale/mx6qsabresd/mx6qsabresd.c b/board/freescale/mx6qsabresd/mx6qsabresd.c
index 2b3926a..5ebbff3 100644
--- a/board/freescale/mx6qsabresd/mx6qsabresd.c
+++ b/board/freescale/mx6qsabresd/mx6qsabresd.c
@@ -160,6 +160,13 @@ int board_mmc_init(bd_t *bis)
 {
 	int i;
 
+	/*
+	 * According to the board_mmc_init() the following map is done:
+	 * (U-boot device node)    (Physical Port)
+	 * mmc0                    SD2
+	 * mmc1                    SD3
+	 * mmc2                    eMMC
+	 */
 	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 		switch (i) {
 		case 0: