From 945b957972844881002ab4f68534581f4427a30b Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Thu, 5 Jan 2006 20:44:57 +0000 Subject: [ARM] 3230/1: Sharp Scoop: Fix Shared Power Control Issues Patch from Richard Purdie The SL-Cxx00 devices have a power control register in SCOOP that is shared by both CF and MMC/SD card slots. The CF reset code was resetting this register leading to various lockups as the MMC power was suddenly lost. This patch handles the CPR register in a more sensitive manner. It also removes some unneeded collie specific calls as the reset code handles this. Signed-off-by: Richard Purdie Signed-off-by: Russell King --- arch/arm/common/scoop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/common/scoop.c') diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c index 0c3cbd9a388..b6de43e7369 100644 --- a/arch/arm/common/scoop.c +++ b/arch/arm/common/scoop.c @@ -33,7 +33,6 @@ void reset_scoop(struct device *dev) SCOOP_REG(sdev->base,SCOOP_MCR) = 0x0100; // 00 SCOOP_REG(sdev->base,SCOOP_CDR) = 0x0000; // 04 - SCOOP_REG(sdev->base,SCOOP_CPR) = 0x0000; // 0C SCOOP_REG(sdev->base,SCOOP_CCR) = 0x0000; // 10 SCOOP_REG(sdev->base,SCOOP_IMR) = 0x0000; // 18 SCOOP_REG(sdev->base,SCOOP_IRM) = 0x00FF; // 14 @@ -154,6 +153,7 @@ int __init scoop_probe(struct platform_device *pdev) SCOOP_REG(devptr->base, SCOOP_MCR) = 0x0140; reset_scoop(&pdev->dev); + SCOOP_REG(devptr->base, SCOOP_CPR) = 0x0000; SCOOP_REG(devptr->base, SCOOP_GPCR) = inf->io_dir & 0xffff; SCOOP_REG(devptr->base, SCOOP_GPWR) = inf->io_out & 0xffff; -- cgit v1.2.3