[PATCH 7/7] add support for the mpc832x mds board

Kumar Gala galak at kernel.crashing.org
Tue Oct 3 13:19:55 EST 2006


On Oct 2, 2006, at 8:10 PM, Kim Phillips wrote:

> Add support for MPC832x MDS evaluation board.
>
> This patch depends on the 8360+QE lib patches by Leo.
>
> The MPC832x processors (MPC8323E, MPC8323, MPC8321E, MPC8321) sport  
> the e300c2 core plus a QUICC Engine (QE).  This patch adds support  
> for the 832x MDS evaluation board.
>
> The 832x MDS dts and defconfig files are pending more tests.
>
> Signed-off-by: Kim Phillips <kim.phillips at freescale.com>
>
> ---
>  arch/powerpc/Kconfig                      |    2
>  arch/powerpc/platforms/83xx/Kconfig       |   13 ++
>  arch/powerpc/platforms/83xx/Makefile      |    1
>  arch/powerpc/platforms/83xx/mpc832x_mds.c |  215 ++++++++++++++++++ 
> +++++++++++
>  arch/powerpc/platforms/83xx/mpc832x_mds.h |   19 +++
>  5 files changed, 249 insertions(+), 1 deletions(-)


> diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/ 
> powerpc/platforms/83xx/mpc832x_mds.c
> new file mode 100644
> index 0000000..54dea9d
> --- /dev/null
> +++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c
> @@ -0,0 +1,215 @@
> +/*
> + * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights  
> reserved.
> + *
> + * Description:
> + * MPC832xE MDS board specific routines.
> + *
> + * 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 <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 "mpc83xx.h"
> +#include "mpc832x_mds.h"
> +
> +#undef DEBUG
> +#ifdef DEBUG
> +#define DBG(fmt...) udbg_printf(fmt)
> +#else
> +#define DBG(fmt...)
> +#endif
> +
> +#ifndef CONFIG_PCI
> +unsigned long isa_io_base = 0;
> +unsigned long isa_mem_base = 0;
> +#endif
> +
> +static u8 *bcsr_regs = NULL;
> +
> +u8 *get_bcsr(void)
> +{
> +	return bcsr_regs;
> +}
> +

Is get_bcsr() needed since you removed its use from ucc_geth?  (if  
not, let's remove it and the header as well).

> +/*  
> ********************************************************************** 
> **
> + *
> + * Setup the architecture
> + *
> + */
> +static void __init mpc832x_sys_setup_arch(void)
> +{
> +	struct device_node *np;
> +
> +	if (ppc_md.progress)
> +		ppc_md.progress("mpc832x_sys_setup_arch()", 0);
> +
> +	np = of_find_node_by_type(NULL, "cpu");
> +	if (np != 0) {
> +		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);
> +	}
> +
> +	/* 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);
> +	}
> +
> +#ifdef CONFIG_PCI
> +	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
> +		add_bridge(np);
> +
> +	ppc_md.pci_swizzle = common_swizzle;
> +	ppc_md.pci_exclude_device = mpc83xx_exclude_device;
> +#endif
> +
> +#ifdef CONFIG_QUICC_ENGINE
> +	qe_reset();
> +
> +	if ((np = of_find_node_by_name(np, "par_io")) != NULL) {
> +		par_io_init(np);
> +		of_node_put(np);
> +
> +		for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
> +			par_io_of_config(np);
> +	}
> +
> +	if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
> +			!= NULL){
> +		/* Reset the Ethernet PHY */
> +		bcsr_regs[9] &= ~0x20;
> +		udelay(1000);
> +		bcsr_regs[9] |= 0x20;
> +		iounmap(bcsr_regs);
> +		of_node_put(np);
> +	}
> +
> +#endif				/* CONFIG_QUICC_ENGINE */
> +
> +#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 __init mpc832x_sys_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();
> +	of_node_put(np);
> +
> +#ifdef CONFIG_QUICC_ENGINE
> +	np = of_find_node_by_type(NULL, "qeic");
> +	if (!np)
> +		return;
> +
> +	qe_ic_init(np, 0);
> +	of_node_put(np);
> +#endif				/* CONFIG_QUICC_ENGINE */
> +}
> +
> +#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 mpc832x_rtc_hookup(void)
> +{
> +	struct timespec tv;
> +
> +	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(mpc832x_rtc_hookup);
> +#endif
> +
> +/*
> + * Called very early, MMU is off, device-tree isn't unflattened
> + */
> +static int __init mpc832x_sys_probe(void)
> +{
> +	char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
> +					  "model", NULL);
> +
> +	if (model == NULL)
> +		return 0;
> +	if (strcmp(model, "MPC8323EMDS"))
> +		return 0;
> +
> +	DBG("%s found\n", model);
> +
> +	return 1;
> +}
> +
> +define_machine(mpc832x_mds) {
> +	.name 		= "MPC832x MDS",
> +	.probe 		= mpc832x_sys_probe,
> +	.setup_arch 	= mpc832x_sys_setup_arch,
> +	.init_IRQ 	= mpc832x_sys_init_IRQ,
> +	.get_irq 	= ipic_get_irq,
> +	.restart 	= mpc83xx_restart,
> +	.time_init 	= mpc83xx_time_init,
> +	.calibrate_decr	= generic_calibrate_decr,
> +	.progress 	= udbg_progress,
> +};
> diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.h b/arch/ 
> powerpc/platforms/83xx/mpc832x_mds.h
> new file mode 100644
> index 0000000..a495889
> --- /dev/null
> +++ b/arch/powerpc/platforms/83xx/mpc832x_mds.h
> @@ -0,0 +1,19 @@
> +/*
> + * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights  
> reserved.
> + *
> + * Description:
> + * MPC832x MDS board specific header.
> + *
> + * 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.
> + *
> + */
> +
> +#ifndef __MACH_MPC832x_MDS_H__
> +#define __MACH_MPC832x_MDS_H__
> +
> +extern u8 *get_bcsr(void);
> +
> +#endif				/* __MACH_MPC832x_MDS_H__ */
> -- 
> 1.4.2.3




More information about the Linuxppc-dev mailing list