openwrt/target/linux/brcm63xx/patches-3.14/330-MIPS-BCM63XX-add-a-new-cpu-variant-helper.patch

From c50acd37b425a8a907a6f7f93aa2e658256e79ce Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sat, 7 Dec 2013 14:08:36 +0100
Subject: [PATCH 40/53] MIPS: BCM63XX: add a new cpu variant helper

---
 arch/mips/bcm63xx/cpu.c                          | 10 ++++++++++
 arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h | 18 ++++++++++++++++++
 2 files changed, 28 insertions(+)

--- a/arch/mips/bcm63xx/cpu.c
+++ b/arch/mips/bcm63xx/cpu.c
@@ -27,6 +27,8 @@ EXPORT_SYMBOL(bcm63xx_irqs);
 u16 bcm63xx_cpu_id __read_mostly;
 EXPORT_SYMBOL(bcm63xx_cpu_id);
 
+static u32 bcm63xx_cpu_variant __read_mostly;
+
 static u8 bcm63xx_cpu_rev;
 static unsigned int bcm63xx_cpu_freq;
 static unsigned int bcm63xx_memory_size;
@@ -99,6 +101,13 @@ static const int bcm6368_irqs[] = {
 
 };
 
+u32 bcm63xx_get_cpu_variant(void)
+{
+	return bcm63xx_cpu_variant;
+}
+
+EXPORT_SYMBOL(bcm63xx_get_cpu_variant);
+
 u8 bcm63xx_get_cpu_rev(void)
 {
 	return bcm63xx_cpu_rev;
@@ -334,6 +343,7 @@ void __init bcm63xx_cpu_init(void)
 	/* read out CPU type */
 	tmp = bcm_readl(chipid_reg);
 	bcm63xx_cpu_id = (tmp & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
+	bcm63xx_cpu_variant = bcm63xx_cpu_id;
 	bcm63xx_cpu_rev = (tmp & REV_REVID_MASK) >> REV_REVID_SHIFT;
 
 	switch (bcm63xx_cpu_id) {
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
@@ -19,6 +19,7 @@
 #define BCM6368_CPU_ID		0x6368
 
 void __init bcm63xx_cpu_init(void);
+u32 bcm63xx_get_cpu_variant(void);
 u8 bcm63xx_get_cpu_rev(void);
 unsigned int bcm63xx_get_cpu_freq(void);
 
@@ -82,6 +83,23 @@ static inline u16 __pure bcm63xx_get_cpu
 #define BCMCPU_IS_6362()	(bcm63xx_get_cpu_id() == BCM6362_CPU_ID)
 #define BCMCPU_IS_6368()	(bcm63xx_get_cpu_id() == BCM6368_CPU_ID)
 
+#define BCMCPU_VARIANT_IS_3368() \
+	(bcm63xx_get_cpu_variant() == BCM3368_CPU_ID)
+#define BCMCPU_VARIANT_IS_6328() \
+	(bcm63xx_get_cpu_variant() == BCM6328_CPU_ID)
+#define BCMCPU_VARIANT_IS_6338() \
+	(bcm63xx_get_cpu_variant() == BCM6338_CPU_ID)
+#define BCMCPU_VARIANT_IS_6345() \
+	(bcm63xx_get_cpu_variant() == BCM6345_CPU_ID)
+#define BCMCPU_VARIANT_IS_6348() \
+	(bcm63xx_get_cpu_variant() == BCM6348_CPU_ID)
+#define BCMCPU_VARIANT_IS_6358() \
+	(bcm63xx_get_cpu_cariant() == BCM6358_CPU_ID)
+#define BCMCPU_VARIANT_IS_6362() \
+	(bcm63xx_get_cpu_variant() == BCM6362_CPU_ID)
+#define BCMCPU_VARIANT_IS_6368() \
+	(bcm63xx_get_cpu_variant() == BCM6368_CPU_ID)
+
 /*
  * While registers sets are (mostly) the same across 63xx CPU, base
  * address of these sets do change.