[U-Boot] [PATCH 13/13] Davinci: ea20: use gpio framework to access gpios

[Stefano Babic]

Drop direct access to SOC's registers and use
the function of the GPIO driver for da8xx.

Signed-off-by: Stefano Babic <sbabic at denx.de>
CC: Bastian Ruppert <Bastian.Ruppert at Sewerin.de>
CC: dzu at denx.de
CC: Sandeep Paulraj <s-paulraj at ti.com>
---

This is added to an existing patchset

 board/davinci/ea20/ea20.c |   32 +++++++++-----------------------
 include/configs/ea20.h    |    2 ++
 2 files changed, 11 insertions(+), 23 deletions(-)

diff --git a/board/davinci/ea20/ea20.c b/board/davinci/ea20/ea20.c
index 720a360..e16c31b 100644
--- a/board/davinci/ea20/ea20.c
+++ b/board/davinci/ea20/ea20.c
@@ -35,7 +35,7 @@
 #include <asm/arch/emac_defs.h>
 #include <asm/io.h>
 #include <asm/arch/davinci_misc.h>
-#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
 #include <asm/arch/da8xx-fb.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -182,29 +182,19 @@ int board_early_init_f(void)
 		return 1;
 
 	/* Set the RESETOUTn low */
-	writel((readl(&gpio6_base->set_data) & ~(1 << 15)),
-		&gpio6_base->set_data);
-	writel((readl(&gpio6_base->dir) & ~(1 << 15)), &gpio6_base->dir);
+	gpio_direction_output(111, 0);
 
 	/* Set U0_SW0 low for UART0 as console*/
-	writel((readl(&gpio6_base->set_data) & ~(1 << 10)),
-		&gpio6_base->set_data);
-	writel((readl(&gpio6_base->dir) & ~(1 << 10)), &gpio6_base->dir);
+	gpio_direction_output(106, 0);
 
 	/* Set U0_SW1 low for UART0 as console*/
-	writel((readl(&gpio6_base->set_data) & ~(1 << 12)),
-		&gpio6_base->set_data);
-	writel((readl(&gpio6_base->dir) & ~(1 << 12)), &gpio6_base->dir);
+	gpio_direction_output(108, 0);
 
 	/* Set LCD_B_PWR low to power down LCD Backlight*/
-	writel((readl(&gpio6_base->set_data) & ~(1 << 6)),
-		&gpio6_base->set_data);
-	writel((readl(&gpio6_base->dir) & ~(1 << 6)), &gpio6_base->dir);
+	gpio_direction_output(102, 0);
 
 	/* Set DISP_ON low to disable LCD output*/
-	writel((readl(&gpio6_base->set_data) & ~(1 << 1)),
-		&gpio6_base->set_data);
-	writel((readl(&gpio6_base->dir) & ~(1 << 1)), &gpio6_base->dir);
+	gpio_direction_output(97, 0);
 
 #ifndef CONFIG_USE_IRQ
 	irq_init();
@@ -266,12 +256,10 @@ int board_early_init_f(void)
 	       &davinci_syscfg_regs->mstpri[2]);
 
 	/* Set LCD_B_PWR low to power up LCD Backlight*/
-	writel((readl(&gpio6_base->set_data)  | (1 << 6)),
-		&gpio6_base->set_data);
+	gpio_set_value(102, 1);
 
 	/* Set DISP_ON low to disable LCD output*/
-	writel((readl(&gpio6_base->set_data) | (1 << 1)),
-		&gpio6_base->set_data);
+	gpio_set_value(97, 1);
 
 	return 0;
 }
@@ -301,9 +289,7 @@ int board_late_init(void)
 		return 1;
 
 	/* Set HALTEN to high */
-	writel((readl(&gpio8_base->set_data) | (1 << 6)),
-		&gpio8_base->set_data);
-	writel((readl(&gpio8_base->dir) & ~(1 << 6)), &gpio8_base->dir);
+	gpio_direction_output(134, 1);
 
 	setenv("stdout", "serial");
 
diff --git a/include/configs/ea20.h b/include/configs/ea20.h
index b99c620..d01b605 100644
--- a/include/configs/ea20.h
+++ b/include/configs/ea20.h
@@ -48,6 +48,7 @@
 #define CONFIG_SYS_HZ			1000
 #define CONFIG_SKIP_LOWLEVEL_INIT
 #define CONFIG_SYS_TEXT_BASE		0xc1080000
+#define CONFIG_DA8XX_GPIO
 
 /*
  * Memory Info
@@ -169,6 +170,7 @@
 #define CONFIG_CMD_SAVES
 #define CONFIG_CMD_MEMORY
 #define CONFIG_CMD_I2C
+#define CONFIG_CMD_GPIO
 
 #ifndef CONFIG_DRIVER_TI_EMAC
 #undef CONFIG_CMD_NET
-- 
1.7.1