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 11 void mxc_set_cpu_type(unsigned int type) 12 { 13 __mxc_cpu_type = type; 14 } 15 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 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