POWERPC: mpc82xx merge: board-specific/platform stuff(resend)

This intruduces 82xx family in arch/powerpc/platforms,
and has all the board-specific code to represent regression-less
transaction from ppc. The functionality is apparently the same, including
PCI controller.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>

arch/powerpc/platforms/82xx/Kconfig

@@ -0,0 +1,21 @@
+menu "Platform support"
+       depends on PPC_82xx
+
+choice
+       prompt "Machine Type"
+       default MPC82xx_ADS
+
+config MPC82xx_ADS
+       bool "Freescale MPC82xx ADS"
+       select DEFAULT_UIMAGE
+       select PQ2ADS
+       select 8272
+       select 8260
+       select CPM2
+       select FSL_SOC
+       help
+         This option enables support for the MPC8272 ADS board
+
+endchoice
+
+endmenu

arch/powerpc/platforms/82xx/Makefile

@@ -0,0 +1,5 @@
+#
+# Makefile for the PowerPC 82xx linux kernel.
+#
+obj-$(CONFIG_PPC_82xx) += mpc82xx.o
+obj-$(CONFIG_MPC82xx_ADS) += mpc82xx_ads.o

arch/powerpc/platforms/82xx/m82xx_pci.h

@@ -0,0 +1,19 @@
+#ifndef _PPC_KERNEL_M82XX_PCI_H
+#define _PPC_KERNEL_M82XX_PCI_H
+
+/*
+ * 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 <asm/m8260_pci.h>
+
+#define SIU_INT_IRQ1   ((uint)0x13 + CPM_IRQ_OFFSET)
+
+#ifndef _IO_BASE
+#define _IO_BASE isa_io_base
+#endif
+
+#endif				/* _PPC_KERNEL_M8260_PCI_H */

arch/powerpc/platforms/82xx/mpc82xx.c

@@ -0,0 +1,111 @@
+/*
+ * MPC82xx setup and early boot code plus other random bits.
+ *
+ * Author: Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * 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/config.h>
+#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));
+}