From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001
From: Yunhong Jiang <yunhong.jiang@intel.com>
Date: Tue, 4 Aug 2015 12:17:53 -0700
Subject: Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
---
 kernel/arch/powerpc/platforms/85xx/p1023_rdb.c | 122 +++++++++++++++++++++++++
 1 file changed, 122 insertions(+)
 create mode 100644 kernel/arch/powerpc/platforms/85xx/p1023_rdb.c

(limited to 'kernel/arch/powerpc/platforms/85xx/p1023_rdb.c')

diff --git a/kernel/arch/powerpc/platforms/85xx/p1023_rdb.c b/kernel/arch/powerpc/platforms/85xx/p1023_rdb.c
new file mode 100644
index 000000000..d5b750982
--- /dev/null
+++ b/kernel/arch/powerpc/platforms/85xx/p1023_rdb.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2010-2011, 2013 Freescale Semiconductor, Inc.
+ *
+ * Author: Roy Zang <tie-fei.zang@freescale.com>
+ *
+ * Description:
+ * P1023 RDB Board Setup
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/fsl_devices.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
+
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+#include "smp.h"
+
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+#include "mpc85xx.h"
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc85xx_rdb_setup_arch(void)
+{
+	struct device_node *np;
+
+	if (ppc_md.progress)
+		ppc_md.progress("p1023_rdb_setup_arch()", 0);
+
+	/* Map BCSR area */
+	np = of_find_node_by_name(NULL, "bcsr");
+	if (np != NULL) {
+		static u8 __iomem *bcsr_regs;
+
+		bcsr_regs = of_iomap(np, 0);
+		of_node_put(np);
+
+		if (!bcsr_regs) {
+			printk(KERN_ERR
+			       "BCSR: Failed to map bcsr register space\n");
+			return;
+		} else {
+#define BCSR15_I2C_BUS0_SEG_CLR		0x07
+#define BCSR15_I2C_BUS0_SEG2		0x02
+/*
+ * Note: Accessing exclusively i2c devices.
+ *
+ * The i2c controller selects initially ID EEPROM in the u-boot;
+ * but if menu configuration selects RTC support in the kernel,
+ * the i2c controller switches to select RTC chip in the kernel.
+ */
+#ifdef CONFIG_RTC_CLASS
+			/* Enable RTC chip on the segment #2 of i2c */
+			clrbits8(&bcsr_regs[15], BCSR15_I2C_BUS0_SEG_CLR);
+			setbits8(&bcsr_regs[15], BCSR15_I2C_BUS0_SEG2);
+#endif
+
+			iounmap(bcsr_regs);
+		}
+	}
+
+	mpc85xx_smp_init();
+
+	fsl_pci_assign_primary();
+}
+
+machine_arch_initcall(p1023_rdb, mpc85xx_common_publish_devices);
+
+static void __init mpc85xx_rdb_pic_init(void)
+{
+	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN |
+		MPIC_SINGLE_DEST_CPU,
+		0, 256, " OpenPIC  ");
+
+	BUG_ON(mpic == NULL);
+
+	mpic_init(mpic);
+}
+
+static int __init p1023_rdb_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	return of_flat_dt_is_compatible(root, "fsl,P1023RDB");
+
+}
+
+define_machine(p1023_rdb) {
+	.name			= "P1023 RDB",
+	.probe			= p1023_rdb_probe,
+	.setup_arch		= mpc85xx_rdb_setup_arch,
+	.init_IRQ		= mpc85xx_rdb_pic_init,
+	.get_irq		= mpic_get_irq,
+	.restart		= fsl_rstcr_restart,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,
+#endif
+};
-- 
cgit 1.2.3-korg