| /* |
| * MPC82xx setup and early boot code plus other random bits. |
| * |
| * Author: Vitaly Bordug <[email protected]> |
| * |
| * Copyright (c) 2006 MontaVista Software, Inc. |
| * |
| * 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. |
| */ |
| |
| #include <linux/stddef.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/errno.h> |
| #include <linux/reboot.h> |
| #include <linux/pci.h> |
| #include <linux/interrupt.h> |
| #include <linux/kdev_t.h> |
| #include <linux/major.h> |
| #include <linux/console.h> |
| #include <linux/delay.h> |
| #include <linux/seq_file.h> |
| #include <linux/root_dev.h> |
| #include <linux/initrd.h> |
| #include <linux/module.h> |
| #include <linux/fsl_devices.h> |
| #include <linux/fs_uart_pd.h> |
| |
| #include <asm/system.h> |
| #include <asm/pgtable.h> |
| #include <asm/page.h> |
| #include <asm/atomic.h> |
| #include <asm/time.h> |
| #include <asm/io.h> |
| #include <asm/machdep.h> |
| #include <asm/bootinfo.h> |
| #include <asm/pci-bridge.h> |
| #include <asm/mpc8260.h> |
| #include <asm/irq.h> |
| #include <mm/mmu_decl.h> |
| #include <asm/prom.h> |
| #include <asm/cpm2.h> |
| #include <asm/udbg.h> |
| #include <asm/i8259.h> |
| #include <linux/fs_enet_pd.h> |
| |
| #include <sysdev/fsl_soc.h> |
| #include <sysdev/cpm2_pic.h> |
| |
| #include "pq2ads_pd.h" |
| |
| static int __init get_freq(char *name, unsigned long *val) |
| { |
| struct device_node *cpu; |
| unsigned int *fp; |
| int found = 0; |
| |
| /* The cpu node should have timebase and clock frequency properties */ |
| cpu = of_find_node_by_type(NULL, "cpu"); |
| |
| if (cpu) { |
| fp = (unsigned int *)get_property(cpu, name, NULL); |
| if (fp) { |
| found = 1; |
| *val = *fp++; |
| } |
| |
| of_node_put(cpu); |
| } |
| |
| return found; |
| } |
| |
| void __init m82xx_calibrate_decr(void) |
| { |
| ppc_tb_freq = 125000000; |
| if (!get_freq("bus-frequency", &ppc_tb_freq)) { |
| printk(KERN_ERR "WARNING: Estimating decrementer frequency " |
| "(not found)\n"); |
| } |
| ppc_tb_freq /= 4; |
| ppc_proc_freq = 1000000000; |
| if (!get_freq("clock-frequency", &ppc_proc_freq)) |
| printk(KERN_ERR "WARNING: Estimating processor frequency" |
| "(not found)\n"); |
| } |
| |
| void mpc82xx_ads_show_cpuinfo(struct seq_file *m) |
| { |
| uint pvid, svid, phid1; |
| uint memsize = total_memory; |
| |
| pvid = mfspr(SPRN_PVR); |
| svid = mfspr(SPRN_SVR); |
| |
| seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); |
| seq_printf(m, "Machine\t\t: %s\n", CPUINFO_MACHINE); |
| seq_printf(m, "PVR\t\t: 0x%x\n", pvid); |
| seq_printf(m, "SVR\t\t: 0x%x\n", svid); |
| |
| /* Display cpu Pll setting */ |
| phid1 = mfspr(SPRN_HID1); |
| seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); |
| |
| /* Display the amount of memory */ |
| seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); |
| } |
