From: Ben Dooks <ben-linux@fluff.org>
Date: Thu, 3 Jul 2008 10:24:30 +0000 (+0100)
Subject: [ARM] JIVE: Initialise the sleep configuration registers
X-Git-Tag: v2.6.27-rc1~850^2~2^12~31
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=54c272acd16dbfb7b83948b04bf19ba451885284;p=linux-2.6-omap-h63xx.git

[ARM] JIVE: Initialise the sleep configuration registers

Ensure that the S3C2412 sleep configuration registers
are approriately setup so that the device can safely
go to sleep.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---

diff --git a/arch/arm/mach-s3c2412/mach-jive.c b/arch/arm/mach-s3c2412/mach-jive.c
index 05da51d1ce4..7cfab868cce 100644
--- a/arch/arm/mach-s3c2412/mach-jive.c
+++ b/arch/arm/mach-s3c2412/mach-jive.c
@@ -319,6 +319,94 @@ static void __init jive_machine_init(void)
 	sysdev_class_register(&jive_pm_sysclass);
 	sysdev_register(&jive_pm_sysdev);
 
+	/* write our sleep configurations for the IO. Pull down all unused
+	 * IO, ensure that we have turned off all peripherals we do not
+	 * need, and configure the ones we do need. */
+
+	/* Port B sleep */
+
+	__raw_writel(S3C2412_SLPCON_IN(0)   |
+		     S3C2412_SLPCON_PULL(1) |
+		     S3C2412_SLPCON_HIGH(2) |
+		     S3C2412_SLPCON_PULL(3) |
+		     S3C2412_SLPCON_PULL(4) |
+		     S3C2412_SLPCON_PULL(5) |
+		     S3C2412_SLPCON_PULL(6) |
+		     S3C2412_SLPCON_HIGH(7) |
+		     S3C2412_SLPCON_PULL(8) |
+		     S3C2412_SLPCON_PULL(9) |
+		     S3C2412_SLPCON_PULL(10), S3C2412_GPBSLPCON);
+
+	/* Port C sleep */
+
+	__raw_writel(S3C2412_SLPCON_PULL(0) |
+		     S3C2412_SLPCON_PULL(1) |
+		     S3C2412_SLPCON_PULL(2) |
+		     S3C2412_SLPCON_PULL(3) |
+		     S3C2412_SLPCON_PULL(4) |
+		     S3C2412_SLPCON_PULL(5) |
+		     S3C2412_SLPCON_LOW(6)  |
+		     S3C2412_SLPCON_PULL(6) |
+		     S3C2412_SLPCON_PULL(7) |
+		     S3C2412_SLPCON_PULL(8) |
+		     S3C2412_SLPCON_PULL(9) |
+		     S3C2412_SLPCON_PULL(10) |
+		     S3C2412_SLPCON_PULL(11) |
+		     S3C2412_SLPCON_PULL(12) |
+		     S3C2412_SLPCON_PULL(13) |
+		     S3C2412_SLPCON_PULL(14) |
+		     S3C2412_SLPCON_PULL(15), S3C2412_GPCSLPCON);
+
+	/* Port D sleep */
+
+	__raw_writel(S3C2412_SLPCON_ALL_PULL, S3C2412_GPDSLPCON);
+
+	/* Port F sleep */
+
+	__raw_writel(S3C2412_SLPCON_LOW(0)  |
+		     S3C2412_SLPCON_LOW(1)  |
+		     S3C2412_SLPCON_LOW(2)  |
+		     S3C2412_SLPCON_EINT(3) |
+		     S3C2412_SLPCON_EINT(4) |
+		     S3C2412_SLPCON_EINT(5) |
+		     S3C2412_SLPCON_EINT(6) |
+		     S3C2412_SLPCON_EINT(7), S3C2412_GPFSLPCON);
+
+	/* Port G sleep */
+
+	__raw_writel(S3C2412_SLPCON_IN(0)    |
+		     S3C2412_SLPCON_IN(1)    |
+		     S3C2412_SLPCON_IN(2)    |
+		     S3C2412_SLPCON_IN(3)    |
+		     S3C2412_SLPCON_IN(4)    |
+		     S3C2412_SLPCON_IN(5)    |
+		     S3C2412_SLPCON_IN(6)    |
+		     S3C2412_SLPCON_IN(7)    |
+		     S3C2412_SLPCON_PULL(8)  |
+		     S3C2412_SLPCON_PULL(9)  |
+		     S3C2412_SLPCON_IN(10)   |
+		     S3C2412_SLPCON_PULL(11) |
+		     S3C2412_SLPCON_PULL(12) |
+		     S3C2412_SLPCON_PULL(13) |
+		     S3C2412_SLPCON_IN(14)   |
+		     S3C2412_SLPCON_PULL(15), S3C2412_GPGSLPCON);
+
+	/* Port H sleep */
+
+	__raw_writel(S3C2412_SLPCON_PULL(0) |
+		     S3C2412_SLPCON_PULL(1) |
+		     S3C2412_SLPCON_PULL(2) |
+		     S3C2412_SLPCON_PULL(3) |
+		     S3C2412_SLPCON_PULL(4) |
+		     S3C2412_SLPCON_PULL(5) |
+		     S3C2412_SLPCON_PULL(6) |
+		     S3C2412_SLPCON_IN(7)   |
+		     S3C2412_SLPCON_IN(8)   |
+		     S3C2412_SLPCON_PULL(9) |
+		     S3C2412_SLPCON_IN(10), S3C2412_GPHSLPCON);
+
+	/* initialise the power management now we've setup everything. */
+
 	s3c2410_pm_init();
 
 	s3c_device_nand.dev.platform_data = &jive_nand_info;