target/linux/ixp4xx-2.6/patches/187-dsmg600_rtc_fixup.patch

   1 Index: linux-2.6.21-arm/arch/arm/mach-ixp4xx/dsmg600-setup.c
   2 ===================================================================
   3 --- linux-2.6.21-arm.orig/arch/arm/mach-ixp4xx/dsmg600-setup.c  2007-05-07 11:29:44.000000000 -0700
   4 +++ linux-2.6.21-arm/arch/arm/mach-ixp4xx/dsmg600-setup.c       2007-05-07 11:31:15.000000000 -0700
   5 @@ -15,6 +15,7 @@
   6  #include <linux/serial.h>
   7  #include <linux/serial_8250.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 @@ -142,6 +143,36 @@
  14      .init   = dsmg600_timer_init,
  15  };
  16
  17 +static char dsmg600_rtc_probe[] __initdata = "rtc-pcf8563.probe=0,0x51 ";
  18 +
  19 +static void __init dsmg600_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 =
  35 +        (sizeof (struct tag_header) +
  36 +        strlen(dsmg600_rtc_probe) + strlen(p) + 1 + 4) >> 2;
  37 +    strlcpy(t->u.cmdline.cmdline, dsmg600_rtc_probe, COMMAND_LINE_SIZE);
  38 +    strlcpy(t->u.cmdline.cmdline + strlen(dsmg600_rtc_probe), p,
  39 +        COMMAND_LINE_SIZE - strlen(dsmg600_rtc_probe));
  40 +
  41 +    /* Terminate the table. */
  42 +    t = tag_next(t);
  43 +    t->hdr.tag = ATAG_NONE;
  44 +    t->hdr.size = 0;
  45 +}
  46 +
  47  static void __init dsmg600_init(void)
  48  {
  49         ixp4xx_sys_init();
  50 @@ -174,6 +205,7 @@
  51         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
  52         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
  53         .boot_params    = 0x00000100,
  54 +       .fixup          = dsmg600_fixup,
  55         .map_io         = ixp4xx_map_io,
  56         .init_irq       = ixp4xx_init_irq,
  57         .timer          = &dsmg600_timer,