diff options
| author | Anson Huang <b20788@freescale.com> | 2012-11-06 17:47:26 -0500 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-11-07 11:08:52 +0800 |
| commit | 8f6f1a04386f12e258622afda0ce6eb674b97625 (patch) | |
| tree | 35a931ad30bd8a6ff801c856c6e7ad216bb2e7b5 | |
| parent | 751d27f0da571ffc591be168fe58a992c733d412 (diff) | |
ENGR00232586 mx6: increase PUPSCR to make sure LDO is ready for resume
Previous setting of PUPSCR is 0x202, which means there is only ~63us
for LDO ramp up, sometimes, system fail to resume by USB remote wake up,
increase this timing to fix USB remote wake up issue.
Signed-off-by: Anson Huang <b20788@freescale.com>
| -rw-r--r-- | arch/arm/mach-mx6/system.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-mx6/system.c b/arch/arm/mach-mx6/system.c index 6ecd51e9f9ea..6d24f22d156c 100644 --- a/arch/arm/mach-mx6/system.c +++ b/arch/arm/mach-mx6/system.c @@ -157,7 +157,7 @@ void mxc_cpu_lp_set(enum mxc_cpu_pwr_mode mode) * The PUPSCR should include the time it takes for the ARM LDO to * ramp up. */ - __raw_writel(0x202, gpc_base + GPC_PGC_CPU_PUPSCR_OFFSET); + __raw_writel(0xf0f, gpc_base + GPC_PGC_CPU_PUPSCR_OFFSET); /* The PDNSCR is a counter that counts in IPG_CLK cycles. This counter * can be set to minimum values to power down faster. */ |