powerpc: Delete __cpuinit usage from all users
[linux/fpc-iii.git] / arch / arm / mach-imx / cpu-imx25.c
blob96ec64b5ff7d3e056ddfdea0f3918278732ea0c1
1 /*
2 * MX25 CPU type detection
4 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
5 * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 #include <linux/module.h>
13 #include <linux/io.h>
15 #include "iim.h"
16 #include "hardware.h"
18 static int mx25_cpu_rev = -1;
20 static int mx25_read_cpu_rev(void)
22 u32 rev;
24 rev = __raw_readl(MX25_IO_ADDRESS(MX25_IIM_BASE_ADDR + MXC_IIMSREV));
25 switch (rev) {
26 case 0x00:
27 return IMX_CHIP_REVISION_1_0;
28 case 0x01:
29 return IMX_CHIP_REVISION_1_1;
30 default:
31 return IMX_CHIP_REVISION_UNKNOWN;
35 int mx25_revision(void)
37 if (mx25_cpu_rev == -1)
38 mx25_cpu_rev = mx25_read_cpu_rev();
40 return mx25_cpu_rev;
42 EXPORT_SYMBOL(mx25_revision);