/*
- * arch/ppc/kernel/setup.c
- *
* Copyright (C) 1995 Linus Torvalds
* Adapted from 'alpha' version by Gary Thomas
* Modified by Cort Dougan (cort@cs.nmt.edu)
* Further modified for generic 8xx and 8260 by Dan.
*/
-/*
- * bootup setup stuff..
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/major.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/initrd.h>
-#include <linux/ioport.h>
-#include <linux/ide.h>
+#include <linux/root_dev.h>
#include <linux/seq_file.h>
+#include <linux/irq.h>
#include <asm/mmu.h>
-#include <asm/residual.h>
#include <asm/io.h>
#include <asm/pgtable.h>
-#include <asm/ide.h>
#include <asm/mpc8260.h>
-#include <asm/immap_cpm2.h>
+#include <asm/cpm2.h>
#include <asm/machdep.h>
#include <asm/bootinfo.h>
#include <asm/time.h>
#include "cpm2_pic.h"
-static int m8260_set_rtc_time(unsigned long time);
-static unsigned long m8260_get_rtc_time(void);
-static void m8260_calibrate_decr(void);
-
unsigned char __res[sizeof(bd_t)];
-extern void cpm2_reset(void);
-extern void m8260_find_bridges(void);
+extern void pq2_find_bridges(void);
+extern void pq2pci_init_irq(void);
extern void idma_pci9_init(void);
+/* Place-holder for board-specific init */
+void __attribute__ ((weak)) __init
+m82xx_board_setup(void)
+{
+}
+
static void __init
m8260_setup_arch(void)
{
- /* Reset the Communication Processor Module.
- */
+ /* Print out Vendor and Machine info. */
+ printk(KERN_INFO "%s %s port\n", CPUINFO_VENDOR, CPUINFO_MACHINE);
+
+ /* Reset the Communication Processor Module. */
cpm2_reset();
#ifdef CONFIG_8260_PCI9
/* Initialise IDMA for PCI erratum workaround */
idma_pci9_init();
#endif
#ifdef CONFIG_PCI_8260
- m8260_find_bridges();
+ pq2_find_bridges();
#endif
+#ifdef CONFIG_BLK_DEV_INITRD
+ if (initrd_start)
+ ROOT_DEV = Root_RAM0;
+#endif
+
+ identify_ppc_sys_by_name_and_id(BOARD_CHIP_NAME,
+ in_be32(CPM_MAP_ADDR + CPM_IMMR_OFFSET));
+
+ m82xx_board_setup();
}
/* The decrementer counts at the system (internal) clock frequency
static void __init
m8260_calibrate_decr(void)
{
- bd_t *binfo = (bd_t *)__res;
+ bd_t *binfo = (bd_t *)__res;
int freq, divisor;
freq = binfo->bi_busfreq;
}
static int
-m8260_show_percpuinfo(struct seq_file *m, int i)
+m8260_show_cpuinfo(struct seq_file *m)
{
- bd_t *bp;
-
- bp = (bd_t *)__res;
-
- seq_printf(m, "core clock\t: %ld MHz\n"
- "CPM clock\t: %ld MHz\n"
- "bus clock\t: %ld MHz\n",
- bp->bi_intfreq / 1000000,
- bp->bi_cpmfreq / 1000000,
- bp->bi_busfreq / 1000000);
+ bd_t *bp = (bd_t *)__res;
+
+ seq_printf(m, "vendor\t\t: %s\n"
+ "machine\t\t: %s\n"
+ "\n"
+ "mem size\t\t: 0x%08x\n"
+ "console baud\t\t: %d\n"
+ "\n"
+ "core clock\t: %u MHz\n"
+ "CPM clock\t: %u MHz\n"
+ "bus clock\t: %u MHz\n",
+ CPUINFO_VENDOR, CPUINFO_MACHINE, bp->bi_memsize,
+ bp->bi_baudrate, bp->bi_intfreq / 1000000,
+ bp->bi_cpmfreq / 1000000, bp->bi_busfreq / 1000000);
return 0;
}
static void __init
m8260_init_IRQ(void)
{
- int i;
- void cpm_interrupt_init(void);
-
- for ( i = 0 ; i < NR_SIU_INTS ; i++ )
- irq_desc[i].handler = &cpm2_pic;
+ cpm2_init_IRQ();
/* Initialize the default interrupt mapping priorities,
* in case the boot rom changed something on us.
*/
- cpm2_immr->im_intctl.ic_sicr = 0;
cpm2_immr->im_intctl.ic_siprr = 0x05309770;
- cpm2_immr->im_intctl.ic_scprrh = 0x05309770;
- cpm2_immr->im_intctl.ic_scprrl = 0x05309770;
+
+#if defined(CONFIG_PCI) && (defined(CONFIG_ADS8272) || defined(CONFIG_PQ2FADS))
+ /* Initialize stuff for the 82xx CPLD IC and install demux */
+ pq2pci_init_irq();
+#endif
+
}
/*
static unsigned long __init
m8260_find_end_of_memory(void)
{
- bd_t *binfo;
- extern unsigned char __res[];
-
- binfo = (bd_t *)__res;
+ bd_t *binfo = (bd_t *)__res;
return binfo->bi_memsize;
}
io_block_mapping(IO_VIRT_ADDR, IO_PHYS_ADDR, 0x10000000, _PAGE_IO);
}
+/* Place-holder for board-specific ppc_md hooking */
+void __attribute__ ((weak)) __init
+m82xx_board_init(void)
+{
+}
+
/* Inputs:
* r3 - Optional pointer to a board information structure.
* r4 - Optional pointer to the physical starting address of the init RAM
* command-line parameters.
*/
void __init
-m8260_init(unsigned long r3, unsigned long r4, unsigned long r5,
+platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
}
ppc_md.setup_arch = m8260_setup_arch;
- ppc_md.show_percpuinfo = m8260_show_percpuinfo;
- ppc_md.irq_canonicalize = NULL;
+ ppc_md.show_cpuinfo = m8260_show_cpuinfo;
ppc_md.init_IRQ = m8260_init_IRQ;
ppc_md.get_irq = cpm2_get_irq;
- ppc_md.init = NULL;
ppc_md.restart = m8260_restart;
ppc_md.power_off = m8260_power_off;
ppc_md.halt = m8260_halt;
- ppc_md.time_init = NULL;
ppc_md.set_rtc_time = m8260_set_rtc_time;
ppc_md.get_rtc_time = m8260_get_rtc_time;
ppc_md.calibrate_decr = m8260_calibrate_decr;
ppc_md.find_end_of_memory = m8260_find_end_of_memory;
ppc_md.setup_io_mappings = m8260_map_io;
+
+ /* Call back for board-specific settings and overrides. */
+ m82xx_board_init();
}
git://git.onelab.eu / linux-2.6.git / blobdiff