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