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| author | Liu Ying <Ying.Liu@freescale.com> | 2012-09-14 13:26:04 +0800 |
|---|---|---|
| committer | Liu Ying <Ying.Liu@freescale.com> | 2012-09-27 11:10:31 +0800 |
| commit | 306f1510e63b6d3dd793dbef0b05cda6c92078e9 (patch) | |
| tree | ee76ddbd466ed98fcd81569cc5f0f63d5572a12a /drivers | |
| parent | fa125315785c2069dd7b85a51bcfd1c9a78db97b (diff) | |
| download | u-boot-imx-306f1510e63b6d3dd793dbef0b05cda6c92078e9.zip u-boot-imx-306f1510e63b6d3dd793dbef0b05cda6c92078e9.tar.gz u-boot-imx-306f1510e63b6d3dd793dbef0b05cda6c92078e9.tar.bz2 | |
ENGR00223797-3 IPUv3:Wait for sw reset finish
This patch checks self-clear sw_ipu_rst bit in
SCR register of SRC controller to be cleared
after setting it to reset IPUv3. This makes
sure that IPUv3 finishes sofware resetting.
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/ipu_common.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c index 79d87e3..2a1d960 100644 --- a/drivers/video/ipu_common.c +++ b/drivers/video/ipu_common.c @@ -6,7 +6,7 @@ * * Linux IPU driver * - * (C) Copyright 2005-2011 Freescale Semiconductor, Inc. + * (C) Copyright 2005-2012 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -363,6 +363,9 @@ void ipu_reset(void) value = __raw_readl(reg); value = value | SW_IPU_RST; __raw_writel(value, reg); + + while (__raw_readl(reg) & SW_IPU_RST) + ; } /* |