1
2 #include <linux/module.h>
3 #include <linux/io.h>
4
5 #include "hardware.h"
6 #include "common.h"
7
8 unsigned int __mxc_cpu_type;
9 EXPORT_SYMBOL(__mxc_cpu_type);
10
mxc_set_cpu_type(unsigned int type)11 void mxc_set_cpu_type(unsigned int type)
12 {
13 __mxc_cpu_type = type;
14 }
15
imx_print_silicon_rev(const char * cpu,int srev)16 void imx_print_silicon_rev(const char *cpu, int srev)
17 {
18 if (srev == IMX_CHIP_REVISION_UNKNOWN)
19 pr_info("CPU identified as %s, unknown revision\n", cpu);
20 else
21 pr_info("CPU identified as %s, silicon rev %d.%d\n",
22 cpu, (srev >> 4) & 0xf, srev & 0xf);
23 }
24
imx_set_aips(void __iomem * base)25 void __init imx_set_aips(void __iomem *base)
26 {
27 unsigned int reg;
28 /*
29 * Set all MPROTx to be non-bufferable, trusted for R/W,
30 * not forced to user-mode.
31 */
32 __raw_writel(0x77777777, base + 0x0);
33 __raw_writel(0x77777777, base + 0x4);
34
35 /*
36 * Set all OPACRx to be non-bufferable, to not require
37 * supervisor privilege level for access, allow for
38 * write access and untrusted master access.
39 */
40 __raw_writel(0x0, base + 0x40);
41 __raw_writel(0x0, base + 0x44);
42 __raw_writel(0x0, base + 0x48);
43 __raw_writel(0x0, base + 0x4C);
44 reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
45 __raw_writel(reg, base + 0x50);
46 }
47