ARM: OMAP2+: Add pdata-quirks for MMC/SD on DRA74x EVM

DRA74x EVM Rev H EVM comes with revision 2.0 silicon. However, earlier versions of EVM can come with either revision 1.1 or revision 1.0 of silicon. The device-tree file is written to support rev 2.0 of silicon. pdata quirks are used to then override the settings needed for PG 1.1 silicon. PG 1.1 silicon has limitations w.r.t frequencies at which MMC1/2/3 can operate as well as different IOdelay numbers. Tested-by: Vishal Mahaveer <[email protected]> Signed-off-by: Sekhar Nori <[email protected]>
henrix · Jun 9, 2016 · 2c9626a · 2c9626a
1 parent 9e2f322
commit 2c9626a
Showing 1 changed file with 28 additions and 0 deletions.
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
@@ -20,6 +20,7 @@
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
 
+#include <linux/platform_data/hsmmc-omap.h>
 #include <linux/platform_data/pinctrl-single.h>
 #include <linux/platform_data/iommu-omap.h>
 #include <linux/platform_data/remoteproc-omap.h>
@@ -472,6 +473,24 @@ static struct iommu_platform_data dra7_dsp_mmu_edma_pdata = {
 	.device_enable = omap_device_enable,
 	.device_idle = omap_device_idle,
 };
+
+static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc1;
+static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc2;
+static struct omap_hsmmc_platform_data dra7_hsmmc_data_mmc3;
+
+static void __init dra7x_evm_mmc_quirk(void)
+{
+	if (omap_rev() == DRA752_REV_ES1_1 || omap_rev() == DRA752_REV_ES1_0) {
+		dra7_hsmmc_data_mmc1.version = "rev11";
+		dra7_hsmmc_data_mmc1.max_freq = 96000000;
+
+		dra7_hsmmc_data_mmc2.version = "rev11";
+		dra7_hsmmc_data_mmc2.max_freq = 48000000;
+
+		dra7_hsmmc_data_mmc3.version = "rev11";
+		dra7_hsmmc_data_mmc3.max_freq = 48000000;
+	}
+}
 #endif
 
 static struct pcs_pdata pcs_pdata;
@@ -574,6 +593,12 @@ static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
 		       &omap4_ipu_dsp_pdata),
 	OF_DEV_AUXDATA("ti,dra7-dsp", 0x41000000, "41000000.dsp",
 		       &omap4_ipu_dsp_pdata),
+	OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x4809c000, "4809c000.mmc",
+		       &dra7_hsmmc_data_mmc1),
+	OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480b4000, "480b4000.mmc",
+		       &dra7_hsmmc_data_mmc2),
+	OF_DEV_AUXDATA("ti,dra7-hsmmc", 0x480ad000, "480ad000.mmc",
+		       &dra7_hsmmc_data_mmc3),
 #endif
 #ifdef CONFIG_SOC_AM43XX
 	OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata),
@@ -616,6 +641,9 @@ static struct pdata_init pdata_quirks[] __initdata = {
 #endif
 #ifdef CONFIG_SOC_OMAP5
 	{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
+#endif
+#ifdef CONFIG_SOC_DRA7XX
+	{ "ti,dra7-evm", dra7x_evm_mmc_quirk, },
 #endif
 	{ /* sentinel */ },
 };