x86: broadwell: Add a pinctrl driver

[u-boot] / arch / x86 / include / asm / cpu.h

diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h
index 08284ee29530c46a3d33ed52956b4f661113de01..789275792ffb8a1bc77f2eaeeb8a38fdc0a906d8 100644 (file)
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
@@ -27,6 +27,36 @@ enum {
        X86_VENDOR_UNKNOWN = 0xff
 };
 
+/* Global descriptor table (GDT) bits */
+enum {
+       GDT_4KB                 = 1ULL << 55,
+       GDT_32BIT               = 1ULL << 54,
+       GDT_LONG                = 1ULL << 53,
+       GDT_PRESENT             = 1ULL << 47,
+       GDT_NOTSYS              = 1ULL << 44,
+       GDT_CODE                = 1ULL << 43,
+       GDT_LIMIT_LOW_SHIFT     = 0,
+       GDT_LIMIT_LOW_MASK      = 0xffff,
+       GDT_LIMIT_HIGH_SHIFT    = 48,
+       GDT_LIMIT_HIGH_MASK     = 0xf,
+       GDT_BASE_LOW_SHIFT      = 16,
+       GDT_BASE_LOW_MASK       = 0xffff,
+       GDT_BASE_HIGH_SHIFT     = 56,
+       GDT_BASE_HIGH_MASK      = 0xf,
+};
+
+/*
+ * System controllers in an x86 system. We mostly need to just find these and
+ * use them on PCI. At some point these might have their own uclass (e.g.
+ * UCLASS_VIDEO for the GMA device).
+ */
+enum {
+       X86_NONE,
+       X86_SYSCON_ME,          /* Intel Management Engine */
+       X86_SYSCON_GMA,         /* Intel Graphics Media Accelerator */
+       X86_SYSCON_PINCONF,     /* Intel x86 pin configuration */
+};
+
 struct cpuid_result {
        uint32_t eax;
        uint32_t ebx;
@@ -211,6 +241,15 @@ char *cpu_get_name(char *name);
  */
 void cpu_call64(ulong pgtable, ulong setup_base, ulong target);
 
+/**
+ * cpu_call32() - Jump to a 32-bit entry point
+ *
+ * @code_seg32:        32-bit code segment to use (GDT offset, e.g. 0x20)
+ * @target:    Pointer to the start of the 32-bit U-Boot image/entry point
+ * @table:     Pointer to start of info table to pass to U-Boot
+ */
+void cpu_call32(ulong code_seg32, ulong target, ulong table);
+
 /**
  * cpu_jump_to_64bit() - Jump to a 64-bit Linux kernel
  *
@@ -222,4 +261,30 @@ void cpu_call64(ulong pgtable, ulong setup_base, ulong target);
  */
 int cpu_jump_to_64bit(ulong setup_base, ulong target);
 
+/**
+ * cpu_get_family_model() - Get the family and model for the CPU
+ *
+ * @return the CPU ID masked with 0x0fff0ff0
+ */
+u32 cpu_get_family_model(void);
+
+/**
+ * cpu_get_stepping() - Get the stepping value for the CPU
+ *
+ * @return the CPU ID masked with 0xf
+ */
+u32 cpu_get_stepping(void);
+
+/**
+ * cpu_run_reference_code() - Run the platform reference code
+ *
+ * Some platforms require a binary blob to be executed once SDRAM is
+ * available. This is used to set up various platform features, such as the
+ * platform controller hub (PCH). This function should be implemented by the
+ * CPU-specific code.
+ *
+ * @return 0 on success, -ve on failure
+ */
+int cpu_run_reference_code(void);
+
 #endif