mode = __raw_readl(CONTROL_STATUS) & (DEVICE_MASK);
return mode >>= 8;
}
+
+/*
+ * get_cpu_type(): extract cpu info
+ */
+u32 get_cpu_type(void)
+{
+ return __raw_readl(CONTROL_OMAP_STATUS);
+}
+
+/*
+ * get_cpu_id(): extract cpu id
+ * returns 0 for ES1.0, cpuid otherwise
+ */
+u32 get_cpu_id(void)
+{
+ u32 cpuid = 0;
+
+ /*
+ * On ES1.0 the IDCODE register is not exposed on L4
+ * so using CPU ID to differentiate between ES1.0 and > ES1.0.
+ */
+ __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
+ if ((cpuid & 0xf) == 0x0) {
+ return 0;
+ } else {
+ /* Decode the IDs on > ES1.0 */
+ cpuid = __raw_readl(CONTROL_IDCODE);
+ }
+
+ return cpuid;
+}
+
+/*
+ * get_cpu_family(void): extract cpu info
+ */
+u32 get_cpu_family(void)
+{
+ u16 hawkeye;
+ u32 cpu_family;
+ u32 cpuid = get_cpu_id();
+
+ if (cpuid == 0)
+ return CPU_OMAP34XX;
+
+ hawkeye = (cpuid >> HAWKEYE_SHIFT) & 0xffff;
+ switch (hawkeye) {
+ case HAWKEYE_OMAP34XX:
+ cpu_family = CPU_OMAP34XX;
+ break;
+ case HAWKEYE_AM35XX:
+ cpu_family = CPU_AM35XX;
+ break;
+ case HAWKEYE_OMAP36XX:
+ cpu_family = CPU_OMAP36XX;
+ break;
+ default:
+ cpu_family = CPU_OMAP34XX;
+ }
+
+ return cpu_family;
+}
+
+/*
+ * get_cpu_rev(void): extract version info
+ */
+u32 get_cpu_rev(void)
+{
+ u32 cpuid = get_cpu_id();
+
+ if (cpuid == 0)
+ return CPU_3XX_ES10;
+ else
+ return (cpuid >> CPU_3XX_ID_SHIFT) & 0xf;
+}