[POWERPC] mpc512x: Basic platform support
512x is very similar to 83xx and most of this is patterned after code from 83xx. New platform: changed: arch/powerpc/Kconfig arch/powerpc/platforms/Kconfig arch/powerpc/platforms/Kconfig.cputype arch/powerpc/platforms/Makefile new: arch/powerpc/platforms/512x/* include/asm-powerpc/mpc512x.h Signed-off-by: John Rigby <jrigby@freescale.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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@ -489,7 +489,7 @@ config PCI
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bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
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|| PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
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|| PPC_PS3 || 44x
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default y if !40x && !CPM2 && !8xx && !PPC_83xx \
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default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
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&& !PPC_85xx && !PPC_86xx
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default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
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default PCI_QSPAN if !4xx && !CPM2 && 8xx
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@ -0,0 +1,20 @@
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config PPC_MPC512x
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bool
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select FSL_SOC
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select IPIC
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default n
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config PPC_MPC5121
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bool
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select PPC_MPC512x
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default n
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config MPC5121_ADS
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bool "Freescale MPC5121E ADS"
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depends on PPC_MULTIPLATFORM && PPC32
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select DEFAULT_UIMAGE
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select WANT_DEVICE_TREE
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select PPC_MPC5121
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help
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This option enables support for the MPC5121E ADS board.
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default n
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@ -0,0 +1,4 @@
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#
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# Makefile for the Freescale PowerPC 512x linux kernel.
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#
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obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o
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@ -0,0 +1,104 @@
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/*
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* Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
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*
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* Author: John Rigby, <jrigby@freescale.com>, Thur Mar 29 2007
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*
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* Description:
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* MPC5121 ADS board setup
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/irq.h>
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#include <linux/of_platform.h>
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#include <asm/machdep.h>
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#include <asm/ipic.h>
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#include <asm/prom.h>
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#include <asm/time.h>
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/**
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* mpc512x_find_ips_freq - Find the IPS bus frequency for a device
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* @node: device node
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*
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* Returns IPS bus frequency, or 0 if the bus frequency cannot be found.
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*/
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unsigned long
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mpc512x_find_ips_freq(struct device_node *node)
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{
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struct device_node *np;
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const unsigned int *p_ips_freq = NULL;
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of_node_get(node);
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while (node) {
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p_ips_freq = of_get_property(node, "bus-frequency", NULL);
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if (p_ips_freq)
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break;
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np = of_get_parent(node);
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of_node_put(node);
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node = np;
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}
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if (node)
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of_node_put(node);
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return p_ips_freq ? *p_ips_freq : 0;
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}
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EXPORT_SYMBOL(mpc512x_find_ips_freq);
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static struct of_device_id __initdata of_bus_ids[] = {
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{ .name = "soc", },
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{ .name = "localbus", },
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{},
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};
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static void __init mpc5121_ads_declare_of_platform_devices(void)
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{
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/* Find every child of the SOC node and add it to of_platform */
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if (of_platform_bus_probe(NULL, of_bus_ids, NULL))
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printk(KERN_ERR __FILE__ ": "
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"Error while probing of_platform bus\n");
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}
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static void __init mpc5121_ads_init_IRQ(void)
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{
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struct device_node *np;
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np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
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if (!np)
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return;
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ipic_init(np, 0);
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of_node_put(np);
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/*
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* Initialize the default interrupt mapping priorities,
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* in case the boot rom changed something on us.
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*/
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ipic_set_default_priority();
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}
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/*
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* Called very early, MMU is off, device-tree isn't unflattened
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*/
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static int __init mpc5121_ads_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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return of_flat_dt_is_compatible(root, "fsl,mpc5121ads");
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}
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define_machine(mpc5121_ads) {
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.name = "MPC5121 ADS",
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.probe = mpc5121_ads_probe,
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.init = mpc5121_ads_declare_of_platform_devices,
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.init_IRQ = mpc5121_ads_init_IRQ,
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.get_irq = ipic_get_irq,
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.calibrate_decr = generic_calibrate_decr,
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};
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@ -41,6 +41,7 @@ config CLASSIC32
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source "arch/powerpc/platforms/pseries/Kconfig"
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source "arch/powerpc/platforms/iseries/Kconfig"
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source "arch/powerpc/platforms/chrp/Kconfig"
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source "arch/powerpc/platforms/512x/Kconfig"
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source "arch/powerpc/platforms/52xx/Kconfig"
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source "arch/powerpc/platforms/powermac/Kconfig"
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source "arch/powerpc/platforms/prep/Kconfig"
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@ -14,7 +14,7 @@ choice
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There are five families of 32 bit PowerPC chips supported.
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The most common ones are the desktop and server CPUs (601, 603,
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604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
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embedded 52xx/82xx/83xx/86xx counterparts.
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embedded 512x/52xx/82xx/83xx/86xx counterparts.
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The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500
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(85xx) each form a family of their own that is not compatible
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with the others.
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@ -22,7 +22,7 @@ choice
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If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
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config 6xx
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bool "52xx/6xx/7xx/74xx/82xx/83xx/86xx"
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bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
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select PPC_FPU
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config PPC_85xx
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@ -221,7 +221,7 @@ config NR_CPUS
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config NOT_COHERENT_CACHE
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bool
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depends on 4xx || 8xx || E200
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depends on 4xx || 8xx || E200 || PPC_MPC512x
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default y
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config CHECK_CACHE_COHERENCY
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@ -11,6 +11,7 @@ endif
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obj-$(CONFIG_PPC_CHRP) += chrp/
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obj-$(CONFIG_40x) += 40x/
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obj-$(CONFIG_44x) += 44x/
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obj-$(CONFIG_PPC_MPC512x) += 512x/
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obj-$(CONFIG_PPC_MPC52xx) += 52xx/
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obj-$(CONFIG_PPC_8xx) += 8xx/
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obj-$(CONFIG_PPC_82xx) += 82xx/
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@ -0,0 +1,22 @@
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/*
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* Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
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*
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* Author: John Rigby, <jrigby@freescale.com>, Friday Apr 13 2007
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*
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* Description:
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* MPC5121 Prototypes and definitions
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#ifndef __ASM_POWERPC_MPC512x_H__
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#define __ASM_POWERPC_MPC512x_H__
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extern unsigned long mpc512x_find_ips_freq(struct device_node *node);
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#endif /* __ASM_POWERPC_MPC512x_H__ */
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