arch/ppc/boot/simple/misc-katana.c

   1 /*
   2  * Set up MPSC values to bootwrapper can prompt user.
   3  *
   4  * Author: Mark A. Greer <source@mvista.com>
   5  *
   6  * 2004 (c) MontaVista Software, Inc. This file is licensed under
   7  * the terms of the GNU General Public License version 2. This program
   8  * is licensed "as is" without any warranty of any kind, whether express
   9  * or implied.
  10  */
  11
  12 #include <linux/types.h>
  13 #include <asm/io.h>
  14 #include <asm/mv64x60_defs.h>
  15 #include <platforms/katana.h>
  16
  17 extern u32 mv64x60_console_baud;
  18 extern u32 mv64x60_mpsc_clk_src;
  19 extern u32 mv64x60_mpsc_clk_freq;
  20
  21 /* Not in the kernel so won't include kernel.h to get its 'min' definition */
  22 #ifndef min
  23 #define min(a,b)        (((a) < (b)) ? (a) : (b))
  24 #endif
  25
  26 unsigned long mv64360_get_mem_size(void);
  27
  28 void
  29 mv64x60_board_init(void __iomem *old_base, void __iomem *new_base)
  30 {
  31         mv64x60_console_baud = KATANA_DEFAULT_BAUD;
  32         mv64x60_mpsc_clk_src = KATANA_MPSC_CLK_SRC;
  33         mv64x60_mpsc_clk_freq =
  34                 min(katana_bus_freq((void __iomem *)KATANA_CPLD_BASE),
  35                         MV64x60_TCLK_FREQ_MAX);
  36 }
  37
  38 unsigned long
  39 get_mem_size(void)
  40 {
  41         return mv64360_get_mem_size();
  42 }