s5pc110: gpio setting: add "Keep State", ready to support "mirror" mode.

	- Mirror mode: set Pull-Down/Up according to the current
	state in u-boot booting time. (For hw-revision pins)

	- Keep State: 0x3 "Previous state" for GPxxCONPDN

diff --git a/board/samsung/universal/gpio_setting.h b/board/samsung/universal/gpio_setting.h
index bc0121b..15e6178 100644 (file)
--- a/board/samsung/universal/gpio_setting.h
+++ b/board/samsung/universal/gpio_setting.h
@@ -1,6 +1,9 @@
 #ifndef __GPIO_SETTING_H
 #define __GPIO_SETTING_H
 
+#include <asm/arch/gpio.h>
+#include <asm/arch/cpu.h>
+
 #define PDN_MASK(x)            (0x3 << ((x) << 1))
 
 #define CON_INPUT(x)           (0x0 << ((x) << 2))
@@ -13,6 +16,7 @@
 #define OUTPUT0(x)             (0x0 << ((x) << 1))
 #define OUTPUT1(x)             (0x1 << ((x) << 1))
 #define INPUT(x)               (0x2 << ((x) << 1))
+#define KEEP_STATE(x)          (0x3 << ((x) << 1))
 
 #define PULL_DIS(x)            (0x0 << ((x) << 1))
 #define PULL_DOWN(x)           (0x1 << ((x) << 1))
@@ -31,6 +35,23 @@ struct gpio_external {
        unsigned int    pud;
 };
 
+#define        __GPIO(x)       \
+       &((struct s5pc110_gpio *)S5PC110_GPIO_BASE)->gpio_##x
+/* In mirror mode, it sets "I(PD/PU)" according to the
+ * output at the u-boot time. */
+struct s5pc11x_gpio_item {
+       struct s5pc11x_gpio_bank *bank;
+       unsigned int number;
+};
+
+static struct s5pc11x_gpio_item aquila_mirror_powerdown_mode[] = {
+};
+
+static struct s5pc11x_gpio_item aries_mirror_powerdown_mode[] = {
+};
+
+#undef __GPIO
+
 static struct gpio_powermode aquila_powerdown_modes[] = {
        {       /* S5PC110_GPIO_A0_OFFSET */
                INPUT(0) | OUTPUT0(1) | INPUT(2) | OUTPUT0(3) |
@@ -305,9 +326,9 @@ static struct gpio_powermode aries_powerdown_modes[] = {
                PULL_DIS(4) | PULL_DIS(5) | PULL_DIS(6) | PULL_DIS(7),
        }, {    /* S5PC110_GPIO_J2_OFFSET */
                OUTPUT0(0) | OUTPUT0(1) | OUTPUT0(2) | OUTPUT0(3) |
-               INPUT(4) | OUTPUT0(5) | INPUT(6) | INPUT(7),
+               INPUT(4) | OUTPUT0(5) | OUTPUT0(6) | OUTPUT0(7),
                PULL_DIS(0) | PULL_DIS(1) | PULL_DIS(2) | PULL_DIS(3) |
-               PULL_DIS(4) | PULL_DIS(5) | PULL_DOWN(6) | PULL_DOWN(7),
+               PULL_DIS(4) | PULL_DIS(5) | PULL_DIS(6) | PULL_DIS(7),
        }, {    /* S5PC110_GPIO_J3_OFFSET */
                INPUT(0) | INPUT(1) | OUTPUT0(2) | OUTPUT0(3) |
                INPUT(4) | INPUT(5) | INPUT(6) | INPUT(7),