target/linux/brcm63xx/patches-3.13/332-MIPS-BCM63XX-detect-bcm6328-variants.patch

   1 From 6c8d94aaf5e2f0a3327e4f69ccd980bd5617f925 Mon Sep 17 00:00:00 2001
   2 From: Jonas Gorski <jogo@openwrt.org>
   3 Date: Sat, 7 Dec 2013 14:30:59 +0100
   4 Subject: [PATCH 42/53] MIPS: BCM63XX: detect bcm6328 variants
   5
   6 ---
   7  arch/mips/bcm63xx/cpu.c                          | 10 ++++++++++
   8  arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h |  8 ++++++--
   9  2 files changed, 16 insertions(+), 2 deletions(-)
  10
  11 --- a/arch/mips/bcm63xx/cpu.c
  12 +++ b/arch/mips/bcm63xx/cpu.c
  13 @@ -304,6 +304,7 @@ void __init bcm63xx_cpu_init(void)
  14         struct cpuinfo_mips *c = &current_cpu_data;
  15         unsigned int cpu = smp_processor_id();
  16         u32 chipid_reg;
  17 +       u8 __maybe_unused varid = 0;
  18
  19         /* soc registers location depends on cpu type */
  20         chipid_reg = 0;
  21 @@ -343,6 +344,7 @@ void __init bcm63xx_cpu_init(void)
  22         bcm63xx_cpu_id = (tmp & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
  23         bcm63xx_cpu_variant = bcm63xx_cpu_id;
  24         bcm63xx_cpu_rev = (tmp & REV_REVID_MASK) >> REV_REVID_SHIFT;
  25 +       varid = (tmp & REV_VARID_MASK) >> REV_VARID_SHIFT;
  26
  27         switch (bcm63xx_cpu_id) {
  28         case BCM3368_CPU_ID:
  29 @@ -352,6 +354,14 @@ void __init bcm63xx_cpu_init(void)
  30         case BCM6328_CPU_ID:
  31                 bcm63xx_regs_base = bcm6328_regs_base;
  32                 bcm63xx_irqs = bcm6328_irqs;
  33 +
  34 +               if (varid == 1)
  35 +                       bcm63xx_cpu_variant = BCM63281_CPU_ID;
  36 +               else if (varid == 3)
  37 +                       bcm63xx_cpu_variant = BCM63283_CPU_ID;
  38 +               else
  39 +                       pr_warn("unknown BCM6328 variant: %x\n", varid);
  40 +
  41                 break;
  42         case BCM6338_CPU_ID:
  43                 bcm63xx_regs_base = bcm6338_regs_base;
  44 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
  45 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
  46 @@ -11,6 +11,8 @@
  47   */
  48  #define BCM3368_CPU_ID         0x3368
  49  #define BCM6328_CPU_ID         0x6328
  50 +#define BCM63281_CPU_ID                0x63281
  51 +#define BCM63283_CPU_ID                0x63283
  52  #define BCM6338_CPU_ID         0x6338
  53  #define BCM6345_CPU_ID         0x6345
  54  #define BCM6348_CPU_ID         0x6348
  55 @@ -85,8 +87,10 @@ static inline u16 __pure bcm63xx_get_cpu
  56
  57  #define BCMCPU_VARIANT_IS_3368() \
  58         (bcm63xx_get_cpu_variant() == BCM3368_CPU_ID)
  59 -#define BCMCPU_VARIANT_IS_6328() \
  60 -       (bcm63xx_get_cpu_variant() == BCM6328_CPU_ID)
  61 +#define BCMCPU_VARIANT_IS_63281() \
  62 +       (bcm63xx_get_cpu_variant() == BCM63281_CPU_ID)
  63 +#define BCMCPU_VARIANT_IS_63283() \
  64 +       (bcm63xx_get_cpu_variant() == BCM63283_CPU_ID)
  65  #define BCMCPU_VARIANT_IS_6338() \
  66         (bcm63xx_get_cpu_variant() == BCM6338_CPU_ID)
  67  #define BCMCPU_VARIANT_IS_6345() \