[U-Boot] [PATCH v3 2/4] mmc: dump card and host capabilities if debug is enabled

[Jean-Jacques Hiblot]

This is a useful information while debugging the initialization process or
performance issues.
Also dump this information with the other mmc info if the verbose option
is selected

Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
---
changes since v2:
 * dump the capabilities during the initialization only when debug is enabled
 * dump teh capabilities in print_mmcinfo() if the MMC_VERBOSE option is
   enabled (it's enabled by default). 

 cmd/mmc.c         | 4 ++++
 drivers/mmc/mmc.c | 9 +++++++++
 2 files changed, 13 insertions(+)

diff --git a/cmd/mmc.c b/cmd/mmc.c
index 6d48ecb..25795e0 100644
--- a/cmd/mmc.c
+++ b/cmd/mmc.c
@@ -24,7 +24,11 @@ static void print_mmcinfo(struct mmc *mmc)
 			(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
 
 	printf("Bus Speed: %d\n", mmc->clock);
+#if CONFIG_IS_ENABLED(MMC_VERBOSE)
 	printf("Mode : %s\n", mmc_mode_name(mmc->selected_mode));
+	mmc_dump_capabilities("card capabilities", mmc->card_caps);
+	mmc_dump_capabilities("host capabilities", mmc->host_caps);
+#endif
 	printf("Rd Block Len: %d\n", mmc->read_bl_len);
 
 	printf("%s version %d.%d", IS_SD(mmc) ? "SD" : "MMC",
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index ab2483e..9b5c982 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1582,6 +1582,10 @@ static int sd_select_mode_and_width(struct mmc *mmc, uint card_caps)
 	bool uhs_en = (mmc->ocr & OCR_S18R) ? true : false;
 	uint caps;
 
+#ifdef DEBUG
+	mmc_dump_capabilities("sd card", card_caps);
+	mmc_dump_capabilities("host", mmc->host_caps | MMC_MODE_1BIT);
+#endif
 
 	/* Restrict card's capabilities by what the host can do */
 	caps = card_caps & (mmc->host_caps | MMC_MODE_1BIT);
@@ -1764,6 +1768,11 @@ static int mmc_select_mode_and_width(struct mmc *mmc, uint card_caps)
 	const struct mode_width_tuning *mwt;
 	const struct ext_csd_bus_width *ecbw;
 
+#ifdef DEBUG
+	mmc_dump_capabilities("mmc", card_caps);
+	mmc_dump_capabilities("host", mmc->host_caps | MMC_MODE_1BIT);
+#endif
+
 	/* Restrict card's capabilities by what the host can do */
 	card_caps &= (mmc->host_caps | MMC_MODE_1BIT);
 
-- 
1.9.1