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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2011-03-17 09:40:29 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2011-05-19 13:11:38 +0200
commit27ad4bf72a27c80c121b2349174e6b41b2e3afd8 (patch)
tree864ddd4e58386f22c9fda4457ebc5bb23d790792 /arch/arm/mach-imx/cpu-imx35.c
parent7fc92c6092d7208e53d35cda32a9181aae396adf (diff)
downloadop-kernel-dev-27ad4bf72a27c80c121b2349174e6b41b2e3afd8.zip
op-kernel-dev-27ad4bf72a27c80c121b2349174e6b41b2e3afd8.tar.gz
ARM: imx: move mx3 support to mach-imx
Fixing a few "please, no space before tabs" and "empty line at end of file" warnings on the way. LAKML-Reference: 1299271882-2130-6-git-send-email-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-imx/cpu-imx35.c')
-rw-r--r--arch/arm/mach-imx/cpu-imx35.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/cpu-imx35.c b/arch/arm/mach-imx/cpu-imx35.c
new file mode 100644
index 0000000..6637cd8
--- /dev/null
+++ b/arch/arm/mach-imx/cpu-imx35.c
@@ -0,0 +1,44 @@
+/*
+ * MX35 CPU type detection
+ *
+ * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/module.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <mach/iim.h>
+
+unsigned int mx35_cpu_rev;
+EXPORT_SYMBOL(mx35_cpu_rev);
+
+void __init mx35_read_cpu_rev(void)
+{
+ u32 rev;
+ char *srev;
+
+ rev = __raw_readl(MX35_IO_ADDRESS(MX35_IIM_BASE_ADDR + MXC_IIMSREV));
+ switch (rev) {
+ case 0x00:
+ mx35_cpu_rev = IMX_CHIP_REVISION_1_0;
+ srev = "1.0";
+ break;
+ case 0x10:
+ mx35_cpu_rev = IMX_CHIP_REVISION_2_0;
+ srev = "2.0";
+ break;
+ case 0x11:
+ mx35_cpu_rev = IMX_CHIP_REVISION_2_1;
+ srev = "2.1";
+ break;
+ default:
+ mx35_cpu_rev = IMX_CHIP_REVISION_UNKNOWN;
+ srev = "unknown";
+ }
+
+ printk(KERN_INFO "CPU identified as i.MX35, silicon rev %s\n", srev);
+}
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