target/linux/cns3xxx/patches-4.9/020-watchdog_support.patch

   1 1. Made the connection between CNS3xxx SOCs(ARCH_CNS3xxx) and MPcore watchdog
   2    since the CNS3xxx SOCs have ARM11 MPcore CPU.
   3 2. Enable mpcore_watchdog option as module to default configuration at
   4    arch/arm/configs/cns3420vb_defconfig.
   5
   6 Signed-off-by: Tommy Lin <tommy.lin@caviumnetworks.com>
   7
   8 ---
   9 arch/arm/Kconfig                     |    1 +
  10  arch/arm/configs/cns3420vb_defconfig |    2 ++
  11  arch/arm/mach-cns3xxx/cns3420vb.c    |   22 ++++++++++++++++++++++
  12  3 files changed, 25 insertions(+), 0 deletions(-)
  13
  14 --- a/arch/arm/configs/cns3420vb_defconfig
  15 +++ b/arch/arm/configs/cns3420vb_defconfig
  16 @@ -56,6 +56,8 @@ CONFIG_LEGACY_PTY_COUNT=16
  17  # CONFIG_HW_RANDOM is not set
  18  # CONFIG_HWMON is not set
  19  # CONFIG_VGA_CONSOLE is not set
  20 +CONFIG_WATCHDOG=y
  21 +CONFIG_MPCORE_WATCHDOG=m
  22  # CONFIG_HID_SUPPORT is not set
  23  # CONFIG_USB_SUPPORT is not set
  24  CONFIG_MMC=y
  25 --- a/arch/arm/mach-cns3xxx/cns3420vb.c
  26 +++ b/arch/arm/mach-cns3xxx/cns3420vb.c
  27 @@ -206,10 +206,32 @@ static struct platform_device cns3xxx_us
  28         },
  29  };
  30
  31 +/* Watchdog */
  32 +static struct resource cns3xxx_watchdog_resources[] = {
  33 +       [0] = {
  34 +               .start = CNS3XXX_TC11MP_TWD_BASE,
  35 +               .end   = CNS3XXX_TC11MP_TWD_BASE + PAGE_SIZE - 1,
  36 +               .flags = IORESOURCE_MEM,
  37 +       },
  38 +       [1] = {
  39 +               .start = IRQ_LOCALWDOG,
  40 +               .end   = IRQ_LOCALWDOG,
  41 +               .flags = IORESOURCE_IRQ,
  42 +       }
  43 +};
  44 +
  45 +static struct platform_device cns3xxx_watchdog_device = {
  46 +       .name           = "mpcore_wdt",
  47 +       .id             = -1,
  48 +       .num_resources  = ARRAY_SIZE(cns3xxx_watchdog_resources),
  49 +       .resource       = cns3xxx_watchdog_resources,
  50 +};
  51 +
  52  /*
  53   * Initialization
  54   */
  55  static struct platform_device *cns3420_pdevs[] __initdata = {
  56 +       &cns3xxx_watchdog_device,
  57         &cns3420_nor_pdev,
  58         &cns3xxx_usb_ehci_device,
  59         &cns3xxx_usb_ohci_device,