diff options
Diffstat (limited to 'arch/mips/ite-boards/qed-4n-s01b/init.c')
| -rw-r--r-- | arch/mips/ite-boards/qed-4n-s01b/init.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/mips/ite-boards/qed-4n-s01b/init.c b/arch/mips/ite-boards/qed-4n-s01b/init.c new file mode 100644 index 00000000000..56dca7e0c21 --- /dev/null +++ b/arch/mips/ite-boards/qed-4n-s01b/init.c @@ -0,0 +1,85 @@ +/* + * BRIEF MODULE DESCRIPTION + * IT8172/QED5231 board setup. + * + * Copyright 2000 MontaVista Software Inc. + * Author: MontaVista Software, Inc. + * ppopov@mvista.com or source@mvista.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/sched.h> +#include <linux/bootmem.h> +#include <asm/addrspace.h> +#include <asm/bootinfo.h> +#include <linux/string.h> +#include <linux/kernel.h> +#include <asm/it8172/it8172.h> +#include <asm/it8172/it8172_dbg.h> + +int prom_argc; +char **prom_argv, **prom_envp; + +extern char _end; +extern void __init prom_init_cmdline(void); +extern unsigned long __init prom_get_memsize(void); +extern void __init it8172_init_ram_resource(unsigned long memsize); + +#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT) +#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK) + +const char *get_system_type(void) +{ + return "ITE QED-4N-S01B"; +} + +void __init prom_init(void) +{ + unsigned long mem_size; + unsigned long pcicr; + + prom_argc = fw_arg0; + prom_argv = (char **) fw_arg1; + prom_envp = (int *) fw_arg3; + + mips_machgroup = MACH_GROUP_ITE; + mips_machtype = MACH_QED_4N_S01B; /* ITE board name/number */ + + prom_init_cmdline(); + mem_size = prom_get_memsize(); + + printk("Memory size: %dMB\n", (unsigned)mem_size); + + mem_size <<= 20; /* MB */ + + /* + * make the entire physical memory visible to pci bus masters + */ + IT_READ(IT_MC_PCICR, pcicr); + pcicr &= ~0x1f; + pcicr |= (mem_size - 1) >> 22; + IT_WRITE(IT_MC_PCICR, pcicr); + + it8172_init_ram_resource(mem_size); + add_memory_region(0, mem_size, BOOT_MEM_RAM); +} |