[POWERPC] Add lite5200 board support to arch/powerpc (6b642531) · Commits · e / devices / android_kernel_fairphone_FP5

arch/powerpc/Kconfig

+6 −0

Original line number	Diff line number	Diff line
		@@ -423,6 +423,12 @@ config PPC_EFIKA
		select PPC_NATIVE
		default y

		config PPC_LITE5200
		bool "Freescale Lite5200 Eval Board"
		depends on PPC_MULTIPLATFORM && PPC32
		select PPC_MPC52xx
		default n

		config PPC_PMAC
		bool "Apple PowerMac based machines"
		depends on PPC_MULTIPLATFORM

arch/powerpc/platforms/52xx/Makefile

+2 −1

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		@@ -6,3 +6,4 @@ obj-y += mpc52xx_pic.o mpc52xx_common.o
		endif

		obj-$(CONFIG_PPC_EFIKA) += efika-setup.o efika-pci.o
		obj-$(CONFIG_PPC_LITE5200) += lite5200.o

arch/powerpc/platforms/52xx/lite5200.c

0 → 100644

+162 −0

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		/*
		* Freescale Lite5200 board support
		*
		* Written by: Grant Likely <grant.likely@secretlab.ca>
		*
		* Copyright (C) Secret Lab Technologies Ltd. 2006. All rights reserved.
		* Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
		*
		* Description:
		* 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.
		*/

		#undef DEBUG

		#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 <linux/initrd.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 <asm/qe.h>
		#include <asm/qe_ic.h>
		#include <asm/of_platform.h>

		#include <asm/mpc52xx.h>

		/* ************************************************************************
		*
		* Setup the architecture
		*
		*/

		static void __init
		lite52xx_setup_cpu(void)
		{
		struct mpc52xx_gpio __iomem *gpio;
		u32 port_config;

		/* Map zones */
		gpio = mpc52xx_find_and_map("mpc52xx-gpio");
		if (!gpio) {
		printk(KERN_ERR __FILE__ ": "
		"Error while mapping GPIO register for port config. "
		"Expect some abnormal behavior\n");
		goto error;
		}

		/* Set port config */
		port_config = in_be32(&gpio->port_config);

		port_config &= ~0x00800000; /* 48Mhz internal, pin is GPIO */

		port_config &= ~0x00007000; /* USB port : Differential mode */
		port_config \|= 0x00001000; /* USB 1 only */

		port_config &= ~0x03000000; /* ATA CS is on csb_4/5 */
		port_config \|= 0x01000000;

		pr_debug("port_config: old:%x new:%x\n",
		in_be32(&gpio->port_config), port_config);
		out_be32(&gpio->port_config, port_config);

		/* Unmap zone */
		error:
		iounmap(gpio);
		}

		static void __init lite52xx_setup_arch(void)
		{
		struct device_node *np;

		if (ppc_md.progress)
		ppc_md.progress("lite52xx_setup_arch()", 0);

		np = of_find_node_by_type(NULL, "cpu");
		if (np) {
		unsigned int *fp =
		(int *)get_property(np, "clock-frequency", NULL);
		if (fp != 0)
		loops_per_jiffy = *fp / HZ;
		else
		loops_per_jiffy = 50000000 / HZ;
		of_node_put(np);
		}

		/* CPU & Port mux setup */
		mpc52xx_setup_cpu(); /* Generic */
		lite52xx_setup_cpu(); /* Platorm specific */

		#ifdef CONFIG_BLK_DEV_INITRD
		if (initrd_start)
		ROOT_DEV = Root_RAM0;
		else
		#endif
		#ifdef CONFIG_ROOT_NFS
		ROOT_DEV = Root_NFS;
		#else
		ROOT_DEV = Root_HDA1;
		#endif

		}

		void lite52xx_show_cpuinfo(struct seq_file *m)
		{
		struct device_node* np = of_find_all_nodes(NULL);
		const char *model = NULL;

		if (np)
		model = get_property(np, "model", NULL);

		seq_printf(m, "vendor\t\t: Freescale Semiconductor\n");
		seq_printf(m, "machine\t\t: %s\n", model ? model : "unknown");

		of_node_put(np);
		}

		/*
		* Called very early, MMU is off, device-tree isn't unflattened
		*/
		static int __init lite52xx_probe(void)
		{
		unsigned long node = of_get_flat_dt_root();
		const char *model = of_get_flat_dt_prop(node, "model", NULL);

		if (!of_flat_dt_is_compatible(node, "lite52xx"))
		return 0;
		pr_debug("%s board w/ mpc52xx found\n", model ? model : "unknown");

		return 1;
		}

		define_machine(lite52xx) {
		.name = "lite52xx",
		.probe = lite52xx_probe,
		.setup_arch = lite52xx_setup_arch,
		.init_IRQ = mpc52xx_init_irq,
		.get_irq = mpc52xx_get_irq,
		.show_cpuinfo = lite52xx_show_cpuinfo,
		.calibrate_decr = generic_calibrate_decr,
		};