diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2011-03-17 08:40:29 (GMT) |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-05-19 11:11:38 (GMT) |
| commit | 27ad4bf72a27c80c121b2349174e6b41b2e3afd8 (patch) | |
| tree | 864ddd4e58386f22c9fda4457ebc5bb23d790792 /arch/arm/mach-imx/cpu-imx35.c | |
| parent | 7fc92c6092d7208e53d35cda32a9181aae396adf (diff) | |
| download | linux-27ad4bf72a27c80c121b2349174e6b41b2e3afd8.tar.xz | |
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.c | 44 |
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); +} |