target/linux/ar71xx/patches-3.2/019-MIPS-ath79-Store-the-SoC-revision-in-a-global-variab.patch

   1 From d3cdd75072bc5df5b18dcafb45cbe9a3a62b840b Mon Sep 17 00:00:00 2001
   2 From: Gabor Juhos <juhosg@openwrt.org>
   3 Date: Fri, 18 Nov 2011 00:17:46 +0000
   4 Subject: [PATCH 19/27] MIPS: ath79: Store the SoC revision in a global variable
   5
   6 Knowing the exact revision of the SoC is required to make runtime decisions
   7 in various code paths.  We have determined the SoC revision already, so we
   8 only need to store that in a global variable.
   9
  10 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  11 Cc: Imre Kaloz <kaloz@openwrt.org>
  12 Cc: linux-mips@linux-mips.org
  13 Patchwork: https://patchwork.linux-mips.org/patch/3027/
  14 Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
  15 ---
  16  arch/mips/ath79/common.c                 |    1 +
  17  arch/mips/ath79/setup.c                  |    2 ++
  18  arch/mips/include/asm/mach-ath79/ath79.h |    1 +
  19  3 files changed, 4 insertions(+), 0 deletions(-)
  20
  21 --- a/arch/mips/ath79/common.c
  22 +++ b/arch/mips/ath79/common.c
  23 @@ -30,6 +30,7 @@ u32 ath79_ddr_freq;
  24  EXPORT_SYMBOL_GPL(ath79_ddr_freq);
  25
  26  enum ath79_soc_type ath79_soc;
  27 +unsigned int ath79_soc_rev;
  28
  29  void __iomem *ath79_pll_base;
  30  void __iomem *ath79_reset_base;
  31 --- a/arch/mips/ath79/setup.c
  32 +++ b/arch/mips/ath79/setup.c
  33 @@ -149,6 +149,8 @@ static void __init ath79_detect_sys_type
  34                 panic("ath79: unknown SoC, id:0x%08x\n", id);
  35         }
  36
  37 +       ath79_soc_rev = rev;
  38 +
  39         sprintf(ath79_sys_type, "Atheros AR%s rev %u", chip, rev);
  40         pr_info("SoC: %s\n", ath79_sys_type);
  41  }
  42 --- a/arch/mips/include/asm/mach-ath79/ath79.h
  43 +++ b/arch/mips/include/asm/mach-ath79/ath79.h
  44 @@ -32,6 +32,7 @@ enum ath79_soc_type {
  45  };
  46
  47  extern enum ath79_soc_type ath79_soc;
  48 +extern unsigned int ath79_soc_rev;
  49
  50  static inline int soc_is_ar71xx(void)
  51  {