target/linux/brcm63xx/patches-3.18/355-MIPS-BCM63XX-allow-board-implementations-to-force-fl.patch

   1 From 8a30097a899b975709f728666d5ad20c8b832d21 Mon Sep 17 00:00:00 2001
   2 From: Jonas Gorski <jogo@openwrt.org>
   3 Date: Sun, 9 Mar 2014 04:28:14 +0100
   4 Subject: [PATCH 43/44] MIPS: BCM63XX: allow board implementations to force
   5  flash address
   6
   7 Allow board implementations to force the physmap address.
   8
   9 Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  10 ---
  11  arch/mips/bcm63xx/dev-flash.c                         | 19 ++++++++++++++-----
  12  .../mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h |  2 ++
  13  2 files changed, 16 insertions(+), 5 deletions(-)
  14
  15 --- a/arch/mips/bcm63xx/dev-flash.c
  16 +++ b/arch/mips/bcm63xx/dev-flash.c
  17 @@ -58,6 +58,12 @@ static struct platform_device mtd_dev =
  18         },
  19  };
  20
  21 +void __init bcm63xx_flash_force_phys_base_address(u32 start, u32 end)
  22 +{
  23 +       mtd_resources[0].start = start;
  24 +       mtd_resources[0].end = end;
  25 +}
  26 +
  27  static int __init bcm63xx_detect_flash_type(void)
  28  {
  29         u32 val;
  30 @@ -172,12 +178,15 @@ int __init bcm63xx_flash_register(void)
  31
  32         switch (flash_type) {
  33         case BCM63XX_FLASH_TYPE_PARALLEL:
  34 -               /* read base address of boot chip select (0) */
  35 -               val = bcm_mpi_readl(MPI_CSBASE_REG(0));
  36 -               val &= MPI_CSBASE_BASE_MASK;
  37
  38 -               mtd_resources[0].start = val;
  39 -               mtd_resources[0].end = 0x1FFFFFFF;
  40 +               if (!mtd_resources[0].start) {
  41 +                       /* read base address of boot chip select (0) */
  42 +                       val = bcm_mpi_readl(MPI_CSBASE_REG(0));
  43 +                       val &= MPI_CSBASE_BASE_MASK;
  44 +
  45 +                       mtd_resources[0].start = val;
  46 +                       mtd_resources[0].end = 0x1FFFFFFF;
  47 +               }
  48
  49                 return platform_device_register(&mtd_dev);
  50         case BCM63XX_FLASH_TYPE_SERIAL:
  51 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
  52 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
  53 @@ -9,6 +9,8 @@ enum {
  54
  55  void bcm63xx_flash_detect(void);
  56
  57 +void bcm63xx_flash_force_phys_base_address(u32 start, u32 end);
  58 +
  59  int __init bcm63xx_flash_register(void);
  60
  61  #endif /* __BCM63XX_FLASH_H */