ARM: ti816x: Fix enabling GPIO0, enable GPIO1 as well

The TI816x has 2 GPIO banks.  For bank 0 we had been clearing the enable
bit when setting BIT(8).  Correct this by setting it to BIT(1) | BIT(8)
after we set and wait for BIT(1) (aka PRCM_MOD_EN).  Enable GPIO1 as
well so that when CMD_GPIO is enabled it won't crash probing the second
bank.  Enable CMD_GPIO on ti816x_evm.

Signed-off-by: Tom Rini <trini@konsulko.com>

arch/arm/mach-omap2/am33xx/clock_ti816x.c

@@ -335,7 +335,13 @@ static void peripheral_enable(void)
 	writel(PRCM_MOD_EN, &cmalwon->gpio0clkctrl);
 	while (readl(&cmalwon->gpio0clkctrl) != PRCM_MOD_EN)
 		;
-	writel((BIT(8)), &cmalwon->gpio0clkctrl);
+	writel((BIT(1) | BIT(8)), &cmalwon->gpio0clkctrl);
+
+	/* Enable gpio1 */
+	writel(PRCM_MOD_EN, &cmalwon->gpio1clkctrl);
+	while (readl(&cmalwon->gpio1clkctrl) != PRCM_MOD_EN)
+		;
+	writel((BIT(1) | BIT(8)), &cmalwon->gpio1clkctrl);
 
 	/* Enable spi */
 	writel(PRCM_MOD_EN, &cmalwon->spiclkctrl);

configs/ti816x_evm_defconfig

@@ -27,6 +27,7 @@ CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x300
 CONFIG_CMD_MMC=y
 CONFIG_CMD_I2C=y
 # CONFIG_CMD_FPGA is not set
+CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_EXT4_WRITE=y
 # CONFIG_ISO_PARTITION is not set