arm: omap5+: Add board specific ldo powering

It is not necessary all omap5+ based uses the same PMIC
to poweron mmc. So add support for enabling mmc based on board.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

arch/arm/include/asm/omap_mmc.h

@@ -174,4 +174,5 @@ int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
 		int wp_gpio);
 
 void vmmc_pbias_config(uint voltage);
+void board_mmc_poweron_ldo(uint voltage);
 #endif /* OMAP_MMC_H_ */

arch/arm/mach-omap2/omap5/hwinit.c

@@ -455,10 +455,14 @@ void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
 }
 
 #if defined(CONFIG_PALMAS_POWER)
+__weak void board_mmc_poweron_ldo(uint voltage)
+{
+	palmas_mmc1_poweron_ldo(voltage);
+}
+
 void vmmc_pbias_config(uint voltage)
 {
 	u32 value = 0;
-	struct vcores_data const *vcores = *omap_vcores;
 
 	value = readl((*ctrl)->control_pbias);
 	value &= ~SDCARD_PWRDNZ;
@@ -467,15 +471,7 @@ void vmmc_pbias_config(uint voltage)
 	value &= ~SDCARD_BIAS_PWRDNZ;
 	writel(value, (*ctrl)->control_pbias);
 
-	if (vcores->core.pmic->i2c_slave_addr == 0x60) {
-		if (voltage == LDO_VOLT_3V0)
-			voltage = 0x19;
-		else if (voltage == LDO_VOLT_1V8)
-			voltage = 0xa;
-		lp873x_mmc1_poweron_ldo(voltage);
-	} else {
-		palmas_mmc1_poweron_ldo(voltage);
-	}
+	board_mmc_poweron_ldo(voltage);
 
 	value = readl((*ctrl)->control_pbias);
 	value |= SDCARD_BIAS_PWRDNZ;

board/ti/dra7xx/evm.c

@@ -710,6 +710,19 @@ int board_mmc_init(bd_t *bis)
 	omap_mmc_init(1, 0, 0, -1, -1);
 	return 0;
 }
+
+void board_mmc_poweron_ldo(uint voltage)
+{
+	if (board_is_dra71x_evm()) {
+		if (voltage == LDO_VOLT_3V0)
+			voltage = 0x19;
+		else if (voltage == LDO_VOLT_1V8)
+			voltage = 0xa;
+		lp873x_mmc1_poweron_ldo(voltage);
+	} else {
+		palmas_mmc1_poweron_ldo(voltage);
+	}
+}
 #endif
 
 #ifdef CONFIG_USB_DWC3