kunimitsu: hibernate: enable PseudoG3 support at board level

this is to move the existing code from chipset level to board level
since PseudoG3 is a board feature that required specific hardware.

BUG=none
BRANCH=glados
TEST=use hibernate command to enter PseudoG3

Change-Id: I309ef89e0ff7057ce46c634baa9791731a771984
Signed-off-by: Kevin K Wong <kevin.k.wong@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/327677
Reviewed-by: Shawn N <shawnn@chromium.org>

6 files changed, 52 insertions, 7 deletions

diff --git a/board/kunimitsu/board.c b/board/kunimitsu/board.c
index 97ec137fa4..897d9b6cae 100644
--- a/board/kunimitsu/board.c
+++ b/board/kunimitsu/board.c
@@ -631,3 +631,20 @@ static void board_handle_reboot(void)
 		; /* wait here */
 }
 DECLARE_HOOK(HOOK_INIT, board_handle_reboot, HOOK_PRIO_FIRST);
+
+void board_hibernate(void)
+{
+	CPRINTS("Enter Pseudo G3");
+
+	/*
+	 * Clean up the UART buffer and prevent any unwanted garbage characters
+	 * before power off and also ensure above debug message is printed.
+	 */
+	cflush();
+
+	gpio_set_level(GPIO_G3_SLEEP_EN, 1);
+
+	/* Power to EC should shut down now */
+	while (1)
+		;
+}
diff --git a/board/kunimitsu/board.h b/board/kunimitsu/board.h
index 63a6cf2243..cec0aa1f66 100644
--- a/board/kunimitsu/board.h
+++ b/board/kunimitsu/board.h
@@ -160,9 +160,6 @@
 #undef CONFIG_CONSOLE_HISTORY
 #undef CONFIG_PECI
 
-/* Enable Pseudo G3 */
-#define CONFIG_LOW_POWER_PSEUDO_G3
-
 #ifndef __ASSEMBLER__
 
 #include "gpio_signal.h"
diff --git a/board/lars/board.c b/board/lars/board.c
index 5fb2c675e0..bf43208f5b 100644
--- a/board/lars/board.c
+++ b/board/lars/board.c
@@ -545,3 +545,20 @@ static void board_handle_reboot(void)
 		; /* wait here */
 }
 DECLARE_HOOK(HOOK_INIT, board_handle_reboot, HOOK_PRIO_FIRST);
+
+void board_hibernate(void)
+{
+	CPRINTS("Enter Pseudo G3");
+
+	/*
+	 * Clean up the UART buffer and prevent any unwanted garbage characters
+	 * before power off and also ensure above debug message is printed.
+	 */
+	cflush();
+
+	gpio_set_level(GPIO_G3_SLEEP_EN, 1);
+
+	/* Power to EC should shut down now */
+	while (1)
+		;
+}
diff --git a/board/lars/board.h b/board/lars/board.h
index c12ffe0b8f..35560b45e2 100644
--- a/board/lars/board.h
+++ b/board/lars/board.h
@@ -144,9 +144,6 @@
 #undef CONFIG_CONSOLE_HISTORY
 #undef CONFIG_PECI
 
-/* Enable Pseudo G3 */
-#define CONFIG_LOW_POWER_PSEUDO_G3
-
 #ifndef __ASSEMBLER__
 
 #include "gpio_signal.h"
diff --git a/board/strago/board.c b/board/strago/board.c
index ae4cb51ea6..97d5b77dde 100644
--- a/board/strago/board.c
+++ b/board/strago/board.c
@@ -367,3 +367,21 @@ enum battery_present battery_is_present(void)
 {
 	return EC_ERROR_UNIMPLEMENTED;
 }
+
+void board_hibernate(void)
+{
+	CPRINTS("Enter Pseudo G3");
+
+	/*
+	 * Clean up the UART buffer and prevent any unwanted garbage characters
+	 * before power off and also ensure above debug message is printed.
+	 */
+	cflush();
+
+	gpio_set_level(GPIO_EC_HIB_L, 1);
+	gpio_set_level(GPIO_SMC_SHUTDOWN, 1);
+
+	/* Power to EC should shut down now */
+	while (1)
+		;
+}
diff --git a/board/strago/board.h b/board/strago/board.h
index 1bf563a642..77f26afdb3 100644
--- a/board/strago/board.h
+++ b/board/strago/board.h
@@ -25,7 +25,6 @@
 #define CONFIG_POWER_BUTTON
 #define CONFIG_POWER_BUTTON_X86
 #define CONFIG_LID_SWITCH
-#define CONFIG_LOW_POWER_PSEUDO_G3
 #define CONFIG_POWER_COMMON
 #define CONFIG_POWER_SHUTDOWN_PAUSE_IN_S5
 #define CONFIG_EXTPOWER_GPIO