Merge ARM fixes

1 files changed, 198 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c
new file mode 100644
index 00000000000..e5d81916687
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c
@@ -0,0 +1,198 @@
+/*
+ * arch/powerpc/platforms/83xx/mpc834x_mds.c
+ *
+ * MPC834x MDS board specific routines
+ *
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
+ *
+ * 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/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 <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc83xx.h"
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+#define BCSR5_INT_USB		0x02
+/* Note: This is only for PB, not for PB+PIB
+ * On PB only port0 is connected using ULPI */
+static int mpc834x_usb_cfg(void)
+{
+	unsigned long sccr, sicrl;
+	void __iomem *immap;
+	void __iomem *bcsr_regs = NULL;
+	u8 bcsr5;
+	struct device_node *np = NULL;
+	int port0_is_dr = 0;
+
+	if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL)
+		port0_is_dr = 1;
+	if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL){
+		if (port0_is_dr) {
+			printk(KERN_WARNING
+				"There is only one USB port on PB board! \n");
+			return -1;
+		} else if (!port0_is_dr)
+			/* No usb port enabled */
+			return -1;
+	}
+
+	immap = ioremap(get_immrbase(), 0x1000);
+	if (!immap)
+		return -1;
+
+	/* Configure clock */
+	sccr = in_be32(immap + MPC83XX_SCCR_OFFS);
+	if (port0_is_dr)
+		sccr |= MPC83XX_SCCR_USB_DRCM_11;  /* 1:3 */
+	else
+		sccr |= MPC83XX_SCCR_USB_MPHCM_11; /* 1:3 */
+	out_be32(immap + MPC83XX_SCCR_OFFS, sccr);
+
+	/* Configure Pin */
+	sicrl = in_be32(immap + MPC83XX_SICRL_OFFS);
+	/* set port0 only */
+	if (port0_is_dr)
+		sicrl |= MPC83XX_SICRL_USB0;
+	else
+		sicrl &= ~(MPC83XX_SICRL_USB0);
+	out_be32(immap + MPC83XX_SICRL_OFFS, sicrl);
+
+	iounmap(immap);
+
+	/* Map BCSR area */
+	np = of_find_node_by_name(NULL, "bcsr");
+	if (np != 0) {
+		struct resource res;
+
+		of_address_to_resource(np, 0, &res);
+		bcsr_regs = ioremap(res.start, res.end - res.start + 1);
+		of_node_put(np);
+	}
+	if (!bcsr_regs)
+		return -1;
+
+	/*
+	 * if MDS board is plug into PIB board,
+	 * force to use the PHY on MDS board
+	 */
+	bcsr5 = in_8(bcsr_regs + 5);
+	if (!(bcsr5 & BCSR5_INT_USB))
+		out_8(bcsr_regs + 5, (bcsr5 | BCSR5_INT_USB));
+	iounmap(bcsr_regs);
+	return 0;
+}
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc834x_mds_setup_arch(void)
+{
+	struct device_node *np;
+
+	if (ppc_md.progress)
+		ppc_md.progress("mpc834x_mds_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+		add_bridge(np);
+
+	ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+#endif
+
+	mpc834x_usb_cfg();
+}
+
+static void __init mpc834x_mds_init_IRQ(void)
+{
+	struct device_node *np;
+
+	np = of_find_node_by_type(NULL, "ipic");
+	if (!np)
+		return;
+
+	ipic_init(np, 0);
+
+	/* Initialize the default interrupt mapping priorities,
+	 * in case the boot rom changed something on us.
+	 */
+	ipic_set_default_priority();
+}
+
+#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
+extern ulong ds1374_get_rtc_time(void);
+extern int ds1374_set_rtc_time(ulong);
+
+static int __init mpc834x_rtc_hookup(void)
+{
+	struct timespec tv;
+
+	if (!machine_is(mpc834x_mds))
+		return 0;
+
+	ppc_md.get_rtc_time = ds1374_get_rtc_time;
+	ppc_md.set_rtc_time = ds1374_set_rtc_time;
+
+	tv.tv_nsec = 0;
+	tv.tv_sec = (ppc_md.get_rtc_time) ();
+	do_settimeofday(&tv);
+
+	return 0;
+}
+
+late_initcall(mpc834x_rtc_hookup);
+#endif
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc834x_mds_probe(void)
+{
+        unsigned long root = of_get_flat_dt_root();
+
+        return of_flat_dt_is_compatible(root, "MPC834xMDS");
+}
+
+define_machine(mpc834x_mds) {
+	.name			= "MPC834x MDS",
+	.probe			= mpc834x_mds_probe,
+	.setup_arch		= mpc834x_mds_setup_arch,
+	.init_IRQ		= mpc834x_mds_init_IRQ,
+	.get_irq		= ipic_get_irq,
+	.restart		= mpc83xx_restart,
+	.time_init		= mpc83xx_time_init,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};