rk3288: Add GPIO() macro

The static gpio_t initializers are stylish, but they are still a little
too annoying to write and read in day-to-day use. Let's wrap that in a
macro to make it a little easier to handle.

BUG=None
TEST=None

Change-Id: If41b2b3fd3c3f94797d314ba5f3ffcb2a250a005
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 102a5c0a800f43d688d11d1d7bbc51e360341517
Original-Change-Id: I385ae5182776c8cbb20bbf3c79b986628040f1cf
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/220250
Original-Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/9052
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

src/mainboard/google/veyron_pinky/chromeos.c

@@ -25,10 +25,10 @@
 #include <vendorcode/google/chromeos/chromeos.h>
 #include <soc/rockchip/rk3288/gpio.h>
 
-#define GPIO_WP		(gpio_t){.port = 7, .bank = GPIO_A, .idx = 6}
-#define GPIO_LID	(gpio_t){.port = 7, .bank = GPIO_B, .idx = 5}
-#define GPIO_POWER	(gpio_t){.port = 0, .bank = GPIO_A, .idx = 5}
-#define GPIO_RECOVERY	(gpio_t){.port = 0, .bank = GPIO_B, .idx = 1}
+#define GPIO_WP		GPIO(7, A, 6)
+#define GPIO_LID	GPIO(7, B, 5)
+#define GPIO_POWER	GPIO(0, A, 5)
+#define GPIO_RECOVERY	GPIO(0, B, 1)
 
 void setup_chromeos_gpios(void)
 {

src/mainboard/google/veyron_pinky/mainboard.c

@@ -39,16 +39,16 @@
 static void setup_gpio(void)
 {
 	/*SOC and TPM reset GPIO, active high.*/
-	gpio_output((gpio_t){.port = 0, .bank = GPIO_B, .idx = 2}, 0);
+	gpio_output(GPIO(0, B, 2), 0);
 
 	/* Configure GPIO for lcd_bl_en */
-	gpio_output((gpio_t){.port = 7, .bank = GPIO_A, .idx = 2}, 1);
+	gpio_output(GPIO(7, A, 2), 1);
 
 	/*Configure backlight PWM 100% brightness*/
-	gpio_output((gpio_t){.port = 7, .bank = GPIO_A, .idx = 0}, 0);
+	gpio_output(GPIO(7, A, 0), 0);
 
 	/* Configure GPIO for lcd_en */
-	gpio_output((gpio_t){.port = 7, .bank = GPIO_B, .idx = 7}, 1);
+	gpio_output(GPIO(7, B, 7), 1);
 }
 
 static void setup_iomux(void)
@@ -76,22 +76,22 @@ static void setup_iomux(void)
 static void setup_usb_poweron(void)
 {
 	/* Configure GPIO for usb1_pwr_en */
-	gpio_output((gpio_t){.port = 0, .bank = GPIO_B, .idx = 3}, 1);
+	gpio_output(GPIO(0, B, 3), 1);
 
 	/* Configure GPIO for usb2_pwr_en */
-	gpio_output((gpio_t){.port = 0, .bank = GPIO_B, .idx = 4}, 1);
+	gpio_output(GPIO(0, B, 4), 1);
 
 	/* Configure GPIO for 5v_drv */
-	gpio_output((gpio_t){.port = 7, .bank = GPIO_B, .idx = 3}, 1);
+	gpio_output(GPIO(7, B, 3), 1);
 }
 
 static void configure_sdmmc(void)
 {
 	/* Configure GPIO for sd_en */
-	gpio_output((gpio_t){.port = 7, .bank = GPIO_C, .idx = 5}, 1);
+	gpio_output(GPIO(7, C, 5), 1);
 
 	/* Configure GPIO for sd_detec */
-	gpio_input_pullup((gpio_t){.port = 7, .bank = GPIO_A, .idx = 5});
+	gpio_input_pullup(GPIO(7, A, 5));
 
 	/*use sdmmc0 io, disable JTAG function*/
 	writel(RK_CLRBITS(1 << 12), &rk3288_grf->soc_con0);
@@ -100,7 +100,7 @@ static void configure_sdmmc(void)
 static void configure_emmc(void)
 {
 	/* Configure GPIO for emmc_pwrctrl */
-	gpio_output((gpio_t){.port = 7, .bank = GPIO_B, .idx = 4}, 1);
+	gpio_output(GPIO(7, B, 4), 1);
 }
 
 static void configure_i2s(void)

src/mainboard/google/veyron_pinky/reset.c

@@ -23,6 +23,6 @@
 
 void hard_reset(void)
 {
-	gpio_output((gpio_t){.port = 0, .bank = GPIO_B, .idx = 2}, 1);
+	gpio_output(GPIO(0, B, 2), 1);
 	while (1);
 }

src/mainboard/google/veyron_pinky/sdram_configs.c

@@ -42,10 +42,10 @@ static struct rk3288_sdram_params sdram_configs[] = {
 #include "sdram_inf/sdram-unused.inc"			/* ram_code = 1111 */
 };
 
-#define GPIO_RAMCODE0	(gpio_t){.port = 8, .bank = GPIO_A, .idx = 0}
-#define GPIO_RAMCODE1	(gpio_t){.port = 8, .bank = GPIO_A, .idx = 1}
-#define GPIO_RAMCODE2	(gpio_t){.port = 8, .bank = GPIO_A, .idx = 2}
-#define GPIO_RAMCODE3	(gpio_t){.port = 8, .bank = GPIO_A, .idx = 3}
+#define GPIO_RAMCODE0	GPIO(8, A, 0)
+#define GPIO_RAMCODE1	GPIO(8, A, 1)
+#define GPIO_RAMCODE2	GPIO(8, A, 2)
+#define GPIO_RAMCODE3	GPIO(8, A, 3)
 
 u32 sdram_get_ram_code(void)
 {

src/soc/rockchip/rk3288/gpio.h

@@ -23,6 +23,8 @@
 #include "addressmap.h"
 #include "grf.h"
 
+#define GPIO(p, b, i) ((gpio_t){.port = p, .bank = GPIO_##b, .idx = i})
+
 struct rk3288_gpio_regs {
 	u32 swporta_dr;
 	u32 swporta_ddr;