1
2 #include <linux/module.h>
3 #include <linux/io.h>
4 #include <mach/hardware.h>
5
6 unsigned int __mxc_cpu_type;
7 EXPORT_SYMBOL(__mxc_cpu_type);
8
mxc_set_cpu_type(unsigned int type)9 void mxc_set_cpu_type(unsigned int type)
10 {
11 __mxc_cpu_type = type;
12 }
13
imx_print_silicon_rev(const char * cpu,int srev)14 void imx_print_silicon_rev(const char *cpu, int srev)
15 {
16 if (srev == IMX_CHIP_REVISION_UNKNOWN)
17 pr_info("CPU identified as %s, unknown revision\n", cpu);
18 else
19 pr_info("CPU identified as %s, silicon rev %d.%d\n",
20 cpu, (srev >> 4) & 0xf, srev & 0xf);
21 }
22
imx_set_aips(void __iomem * base)23 void __init imx_set_aips(void __iomem *base)
24 {
25 unsigned int reg;
26 /*
27 * Set all MPROTx to be non-bufferable, trusted for R/W,
28 * not forced to user-mode.
29 */
30 __raw_writel(0x77777777, base + 0x0);
31 __raw_writel(0x77777777, base + 0x4);
32
33 /*
34 * Set all OPACRx to be non-bufferable, to not require
35 * supervisor privilege level for access, allow for
36 * write access and untrusted master access.
37 */
38 __raw_writel(0x0, base + 0x40);
39 __raw_writel(0x0, base + 0x44);
40 __raw_writel(0x0, base + 0x48);
41 __raw_writel(0x0, base + 0x4C);
42 reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
43 __raw_writel(reg, base + 0x50);
44 }
45