2 * MX35 CPU type detection
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 #include <linux/module.h>
17 static int mx35_cpu_rev = -1;
19 static int mx35_read_cpu_rev(void)
23 rev = __raw_readl(MX35_IO_ADDRESS(MX35_IIM_BASE_ADDR + MXC_IIMSREV));
26 return IMX_CHIP_REVISION_1_0;
28 return IMX_CHIP_REVISION_2_0;
30 return IMX_CHIP_REVISION_2_1;
32 return IMX_CHIP_REVISION_UNKNOWN;
36 int mx35_revision(void)
38 if (mx35_cpu_rev == -1)
39 mx35_cpu_rev = mx35_read_cpu_rev();
43 EXPORT_SYMBOL(mx35_revision);