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powerpc/t104xrdb: Toggle deep sleep management signals after resume

PATCH New Tang Yuantian 2 participants 2 messages May 7, 2014 – May 20, 2014

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Tang Yuantian

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PATCH 1/1 powerpc/t104xrdb: Toggle deep sleep management signals after resume

From: Tang Yuantian <[email protected]>

T104xrdb has several sleep management signals that are used for deep sleep. They are enabled by OS to enter deep sleep and should be disabled by u-boot when cores wake up.

Signed-off-by Tang Yuantian <[email protected]>
---
 board/freescale/t104xrdb/t104xrdb.c | 2 ++
 1 file changed, 2 insertions(+)
board/freescale/t104xrdb/t104xrdb.c +2 -0
index 24b8dba..c87519c 100644
@@ -108,6 +108,8 @@ void ft_board_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_DEEP_SLEEP
 void board_mem_sleep_setup(void)
 {
+	/* does not provide HW signals for power management */
+	CPLD_WRITE(misc_ctl_status, (CPLD_READ(misc_ctl_status) & ~0x40));
 	/* Disable MCKE isolation */
 	gpio_set_value(2, 0);
 	udelay(1);
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1.8.5
#1 lore raw

PATCH 1/1 powerpc/t104xrdb: Toggle deep sleep management signals after resume

Quoted 8 lines · Tang Yuantian

From: Tang Yuantian <[email protected]>

T104xrdb has several sleep management signals that are used for deep sleep. They are enabled by OS to enter deep sleep and should be disabled by u-boot when cores wake up.

Signed-off-by Tang Yuantian <[email protected]>

---

Applied to u-boot-mpc85xx/master.

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