1 files changed, 144 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-ux500/id.h b/kernel/arch/arm/mach-ux500/id.h
new file mode 100644
index 000000000..bcc58a8cc
--- /dev/null
+++ b/kernel/arch/arm/mach-ux500/id.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifndef __MACH_UX500_ID
+#define __MACH_UX500_ID
+
+/**
+ * struct dbx500_asic_id - fields of the ASIC ID
+ * @process: the manufacturing process, 0x40 is 40 nm 0x00 is "standard"
+ * @partnumber: hithereto 0x8500 for DB8500
+ * @revision: version code in the series
+ */
+struct dbx500_asic_id {
+	u16	partnumber;
+	u8	revision;
+	u8	process;
+};
+
+extern struct dbx500_asic_id dbx500_id;
+
+static inline unsigned int __attribute_const__ dbx500_partnumber(void)
+{
+	return dbx500_id.partnumber;
+}
+
+static inline unsigned int __attribute_const__ dbx500_revision(void)
+{
+	return dbx500_id.revision;
+}
+
+/*
+ * SOCs
+ */
+
+static inline bool __attribute_const__ cpu_is_u8500(void)
+{
+	return dbx500_partnumber() == 0x8500;
+}
+
+static inline bool __attribute_const__ cpu_is_u8520(void)
+{
+	return dbx500_partnumber() == 0x8520;
+}
+
+static inline bool cpu_is_u8500_family(void)
+{
+	return cpu_is_u8500() || cpu_is_u8520();
+}
+
+static inline bool __attribute_const__ cpu_is_u9540(void)
+{
+	return dbx500_partnumber() == 0x9540;
+}
+
+static inline bool __attribute_const__ cpu_is_u8540(void)
+{
+	return dbx500_partnumber() == 0x8540;
+}
+
+static inline bool __attribute_const__ cpu_is_u8580(void)
+{
+	return dbx500_partnumber() == 0x8580;
+}
+
+static inline bool cpu_is_ux540_family(void)
+{
+	return cpu_is_u9540() || cpu_is_u8540() || cpu_is_u8580();
+}
+
+/*
+ * 8500 revisions
+ */
+
+static inline bool __attribute_const__ cpu_is_u8500ed(void)
+{
+	return cpu_is_u8500() && dbx500_revision() == 0x00;
+}
+
+static inline bool __attribute_const__ cpu_is_u8500v1(void)
+{
+	return cpu_is_u8500() && (dbx500_revision() & 0xf0) == 0xA0;
+}
+
+static inline bool __attribute_const__ cpu_is_u8500v10(void)
+{
+	return cpu_is_u8500() && dbx500_revision() == 0xA0;
+}
+
+static inline bool __attribute_const__ cpu_is_u8500v11(void)
+{
+	return cpu_is_u8500() && dbx500_revision() == 0xA1;
+}
+
+static inline bool __attribute_const__ cpu_is_u8500v2(void)
+{
+	return cpu_is_u8500() && ((dbx500_revision() & 0xf0) == 0xB0);
+}
+
+static inline bool cpu_is_u8500v20(void)
+{
+	return cpu_is_u8500() && (dbx500_revision() == 0xB0);
+}
+
+static inline bool cpu_is_u8500v21(void)
+{
+	return cpu_is_u8500() && (dbx500_revision() == 0xB1);
+}
+
+static inline bool cpu_is_u8500v22(void)
+{
+	return cpu_is_u8500() && (dbx500_revision() == 0xB2);
+}
+
+static inline bool cpu_is_u8500v20_or_later(void)
+{
+	return (cpu_is_u8500() && !cpu_is_u8500v10() && !cpu_is_u8500v11());
+}
+
+/*
+ * 8540 revisions
+ */
+
+static inline bool __attribute_const__ cpu_is_u8540v10(void)
+{
+	return cpu_is_u8540() && dbx500_revision() == 0xA0;
+}
+
+static inline bool __attribute_const__ cpu_is_u8580v10(void)
+{
+	return cpu_is_u8580() && dbx500_revision() == 0xA0;
+}
+
+static inline bool ux500_is_svp(void)
+{
+	return false;
+}
+
+#define ux500_unknown_soc()	BUG()
+
+#endif