include/asm-arm/arch-ixp23xx/platform.h

   1 /*
   2  * include/asm-arm/arch-ixp23xx/platform.h
   3  *
   4  * Various bits of code used by platform-level code.
   5  *
   6  * Author: Deepak Saxena <dsaxena@plexity.net>
   7  *
   8  * Copyright 2005 (c) MontaVista Software, Inc.
   9  *
  10  * This file is licensed under the terms of the GNU General Public
  11  * License version 2. This program is licensed "as is" without any
  12  * warranty of any kind, whether express or implied.
  13  */
  14
  15 #ifndef __ASSEMBLY__
  16
  17 static inline unsigned long ixp2000_reg_read(volatile void *reg)
  18 {
  19         return *((volatile unsigned long *)reg);
  20 }
  21
  22 static inline void ixp2000_reg_write(volatile void *reg, unsigned long val)
  23 {
  24         *((volatile unsigned long *)reg) = val;
  25 }
  26
  27 static inline void ixp2000_reg_wrb(volatile void *reg, unsigned long val)
  28 {
  29         *((volatile unsigned long *)reg) = val;
  30 }
  31
  32 struct pci_sys_data;
  33
  34 void ixp23xx_map_io(void);
  35 void ixp23xx_init_irq(void);
  36 void ixp23xx_sys_init(void);
  37 int ixp23xx_pci_setup(int, struct pci_sys_data *);
  38 void ixp23xx_pci_preinit(void);
  39 struct pci_bus *ixp23xx_pci_scan_bus(int, struct pci_sys_data*);
  40 void ixp23xx_pci_slave_init(void);
  41
  42 extern struct sys_timer ixp23xx_timer;
  43
  44 #define IXP23XX_UART_XTAL               14745600
  45
  46 #ifndef __ASSEMBLY__
  47 /*
  48  * Is system memory on the XSI or CPP bus?
  49  */
  50 static inline unsigned ixp23xx_cpp_boot(void)
  51 {
  52         return (*IXP23XX_EXP_CFG0 & IXP23XX_EXP_CFG0_XSI_NOT_PRES);
  53 }
  54 #endif
  55
  56
  57 #endif