target/linux/ixp4xx/patches-2.6.23/092-nas100d_rtc_fixup.patch

   1 Index: linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-setup.c
   2 ===================================================================
   3 --- linux-2.6.23.17.orig/arch/arm/mach-ixp4xx/nas100d-setup.c
   4 +++ linux-2.6.23.17/arch/arm/mach-ixp4xx/nas100d-setup.c
   5 @@ -18,6 +18,7 @@
   6  #include <linux/leds.h>
   7  #include <linux/i2c-gpio.h>
   8
   9 +#include <asm/setup.h>
  10  #include <asm/mach-types.h>
  11  #include <asm/mach/arch.h>
  12  #include <asm/mach/flash.h>
  13 @@ -163,6 +164,35 @@ static void nas100d_power_off(void)
  14         gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
  15  }
  16
  17 +static char nas100d_rtc_probe[] __initdata = "rtc-pcf8563.probe=0,0x51 ";
  18 +
  19 +static void __init nas100d_fixup(struct machine_desc *desc,
  20 +                struct tag *tags, char **cmdline, struct meminfo *mi)
  21 +{
  22 +    struct tag *t = tags;
  23 +    char *p = *cmdline;
  24 +
  25 +    /* Find the end of the tags table, taking note of any cmdline tag. */
  26 +    for (; t->hdr.size; t = tag_next(t)) {
  27 +        if (t->hdr.tag == ATAG_CMDLINE) {
  28 +            p = t->u.cmdline.cmdline;
  29 +        }
  30 +    }
  31 +
  32 +    /* Overwrite the end of the table with a new cmdline tag. */
  33 +    t->hdr.tag = ATAG_CMDLINE;
  34 +    t->hdr.size = (sizeof (struct tag_header) +
  35 +        strlen(nas100d_rtc_probe) + strlen(p) + 1 + 4) >> 2;
  36 +    strlcpy(t->u.cmdline.cmdline, nas100d_rtc_probe, COMMAND_LINE_SIZE);
  37 +    strlcpy(t->u.cmdline.cmdline + strlen(nas100d_rtc_probe), p,
  38 +        COMMAND_LINE_SIZE - strlen(nas100d_rtc_probe));
  39 +
  40 +    /* Terminate the table. */
  41 +    t = tag_next(t);
  42 +    t->hdr.tag = ATAG_NONE;
  43 +    t->hdr.size = 0;
  44 +}
  45 +
  46  static void __init nas100d_init(void)
  47  {
  48         uint8_t __iomem *f;
  49 @@ -221,6 +251,7 @@ MACHINE_START(NAS100D, "Iomega NAS 100d"
  50         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
  51         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
  52         .boot_params    = 0x00000100,
  53 +       .fixup          = nas100d_fixup,
  54         .map_io         = ixp4xx_map_io,
  55         .init_irq       = ixp4xx_init_irq,
  56         .timer          = &ixp4xx_timer,