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authorBen Dooks <ben-linux@fluff.org>2008-07-03 11:24:30 +0100
committerBen Dooks <ben-linux@fluff.org>2008-07-03 16:51:24 +0100
commit54c272acd16dbfb7b83948b04bf19ba451885284 (patch)
tree8d09e53453f905737411c9ce29fde7642ac98846
parent9db829f485c553a0e677a165b37f877bf74f36ff (diff)
[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>
-rw-r--r--arch/arm/mach-s3c2412/mach-jive.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2412/mach-jive.c b/arch/arm/mach-s3c2412/mach-jive.c
index 05da51d1ce4e..7cfab868cce3 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;