MMC: atmel_mci: enable high speed mode support

If the MCI IP version >= 0x300, it supports hight speed mode option, this patch enable it. Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>

MMC: atmel_mci: enable high speed mode support
If the MCI IP version >= 0x300, it supports hight speed mode option, this patch enable it. Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Bo Shen · Pantelis Antoniou
1 parent 70ec3286e6
Showing 1 changed file with 6 additions and 1 deletions Side-by-side Diff
drivers/mmc/gen_atmel_mci.c
@@ -110,6 +110,9 @@
 	if (version >= 0x200)
 		writel(MMCI_BF(BLKLEN, blklen), &mci->blkr);
  
+	if (mmc->card_caps & mmc->cfg->host_caps & MMC_MODE_HS)
+		writel(MMCI_BIT(HSMODE), &mci->cfg);
+
 	initialized = 1;
 }
  
  
@@ -404,8 +407,10 @@
 	/* need to be able to pass these in on a board by board basis */
 	cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
 	version = atmel_mci_get_version(mci);
-	if ((version & 0xf00) >= 0x300)
+	if ((version & 0xf00) >= 0x300) {
 		cfg->host_caps = MMC_MODE_8BIT;
+		cfg->host_caps |= MMC_MODE_HS | MMC_MODE_HS_52MHz;
+	}
  
 	cfg->host_caps |= MMC_MODE_4BIT;
...	...	@@ -110,6 +110,9 @@
110	110	if (version >= 0x200)
111	111	writel(MMCI_BF(BLKLEN, blklen), &mci->blkr);
112	112
	113	+ if (mmc->card_caps & mmc->cfg->host_caps & MMC_MODE_HS)
	114	+ writel(MMCI_BIT(HSMODE), &mci->cfg);
	115	+
113	116	initialized = 1;
114	117	}
115	118
116	119
...	...	@@ -404,8 +407,10 @@
404	407	/* need to be able to pass these in on a board by board basis */
405	408	cfg->voltages = MMC_VDD_32_33 \| MMC_VDD_33_34;
406	409	version = atmel_mci_get_version(mci);
407		- if ((version & 0xf00) >= 0x300)
	410	+ if ((version & 0xf00) >= 0x300) {
408	411	cfg->host_caps = MMC_MODE_8BIT;
	412	+ cfg->host_caps \|= MMC_MODE_HS \| MMC_MODE_HS_52MHz;
	413	+ }
409	414
410	415	cfg->host_caps \|= MMC_MODE_4BIT;
411	416