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[U-Boot,3/3] mpc85xx: Add deep sleep support on T1040QDS

Message ID 1391995024-22184-3-git-send-email-Yuantian.Tang@freescale.com
State Superseded
Delegated to: York Sun
Headers show

Commit Message

tang yuantian Feb. 10, 2014, 1:17 a.m. UTC 
From: Tang Yuantian <yuantian.tang@freescale.com>

Add deep sleep support on T1040QDS platforms.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
---
 board/freescale/t1040qds/t1040qds.c | 12 ++++++++++++
 include/configs/T1040QDS.h          |  4 ++++
 2 files changed, 16 insertions(+)
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Patch

diff --git a/board/freescale/t1040qds/t1040qds.c b/board/freescale/t1040qds/t1040qds.c
index de3ea5c..2494da6 100644
--- a/board/freescale/t1040qds/t1040qds.c
+++ b/board/freescale/t1040qds/t1040qds.c
@@ -18,6 +18,7 @@ 
 #include <asm/fsl_portals.h>
 #include <asm/fsl_liodn.h>
 #include <fm_eth.h>
+#include <asm/mpc85xx_gpio.h>
 
 #include "../common/qixis.h"
 #include "t1040qds.h"
@@ -244,3 +245,14 @@  int board_need_mem_reset(void)
 {
 	return 1;
 }
+
+#ifdef CONFIG_DEEP_SLEEP
+void board_mem_sleep_setup(void)
+{
+	/* does not provide HW signals for power management */
+	QIXIS_WRITE(pwr_ctl[1], (QIXIS_READ(pwr_ctl[1]) & ~0x2));
+	/* Disable MCKE isolation */
+	gpio_set_value(2, 0);
+	udelay(1);
+}
+#endif
diff --git a/include/configs/T1040QDS.h b/include/configs/T1040QDS.h
index 91b511b..9c5daf1 100644
--- a/include/configs/T1040QDS.h
+++ b/include/configs/T1040QDS.h
@@ -36,6 +36,10 @@ 
 #define CONFIG_SYS_FSL_PBL_RCW $(SRCTREE)/board/freescale/t1040qds/t1040_rcw.cfg
 #endif
 
+/* support deep sleep */
+#define CONFIG_DEEP_SLEEP
+#define CONFIG_SILENT_CONSOLE
+
 /* High Level Configuration Options */
 #define CONFIG_BOOKE
 #define CONFIG_E500			/* BOOKE e500 family */