diff options
| -rw-r--r-- | arch/sparc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/sparc/include/asm/prom.h | 5 | ||||
| -rw-r--r-- | arch/sparc/kernel/prom.h | 6 | ||||
| -rw-r--r-- | arch/sparc/kernel/prom_common.c | 10 | ||||
| -rw-r--r-- | drivers/of/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/of/Makefile | 1 | ||||
| -rw-r--r-- | drivers/of/pdt.c | 54 | ||||
| -rw-r--r-- | include/linux/of_pdt.h | 24 |
8 files changed, 81 insertions, 25 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 491e9d6de191..a06c9598c2ed 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -19,6 +19,7 @@ config SPARC bool default y select OF + select OF_PROMTREE select HAVE_IDE select HAVE_OPROFILE select HAVE_ARCH_KGDB if !SMP || SPARC64 diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h index 291f12575edd..56bbaadef646 100644 --- a/arch/sparc/include/asm/prom.h +++ b/arch/sparc/include/asm/prom.h @@ -18,6 +18,7 @@ * 2 of the License, or (at your option) any later version. */ #include <linux/types.h> +#include <linux/of_pdt.h> #include <linux/proc_fs.h> #include <linux/mutex.h> #include <asm/atomic.h> @@ -67,8 +68,8 @@ extern struct device_node *of_console_device; extern char *of_console_path; extern char *of_console_options; -extern void (*prom_build_more)(struct device_node *dp, struct device_node ***nextp); -extern char *build_full_name(struct device_node *dp); +extern void irq_trans_init(struct device_node *dp); +extern char *build_path_component(struct device_node *dp); #endif /* __KERNEL__ */ #endif /* _SPARC_PROM_H */ diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h index eeb04a782ec8..cf5fe1c0b024 100644 --- a/arch/sparc/kernel/prom.h +++ b/arch/sparc/kernel/prom.h @@ -4,12 +4,6 @@ #include <linux/spinlock.h> #include <asm/prom.h> -extern void * prom_early_alloc(unsigned long size); -extern void irq_trans_init(struct device_node *dp); - -extern unsigned int prom_unique_id; - -extern char *build_path_component(struct device_node *dp); extern void of_console_init(void); extern unsigned int prom_early_allocated; diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c index 7b454f6413f7..fe84d56b7c5a 100644 --- a/arch/sparc/kernel/prom_common.c +++ b/arch/sparc/kernel/prom_common.c @@ -20,6 +20,7 @@ #include <linux/mutex.h> #include <linux/slab.h> #include <linux/of.h> +#include <linux/of_pdt.h> #include <asm/prom.h> #include <asm/oplib.h> #include <asm/leon.h> @@ -119,4 +120,11 @@ EXPORT_SYMBOL(of_find_in_proplist); unsigned int prom_early_allocated __initdata; -#include "../../../drivers/of/pdt.c" +void __init prom_build_devicetree(void) +{ + of_pdt_build_devicetree(prom_root_node); + of_console_init(); + + pr_info("PROM: Built device tree with %u bytes of memory.\n", + prom_early_allocated); +} diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 6acbff389ab6..aa675ebd8eb3 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -4,7 +4,7 @@ config DTC config OF bool -menu "Flattened Device Tree and Open Firmware support" +menu "Device Tree and Open Firmware support" depends on OF config PROC_DEVICETREE @@ -19,6 +19,9 @@ config OF_FLATTREE bool select DTC +config OF_PROMTREE + bool + config OF_DYNAMIC def_bool y depends on PPC_OF diff --git a/drivers/of/Makefile b/drivers/of/Makefile index 0052c405463a..7888155bea08 100644 --- a/drivers/of/Makefile +++ b/drivers/of/Makefile @@ -1,5 +1,6 @@ obj-y = base.o obj-$(CONFIG_OF_FLATTREE) += fdt.o +obj-$(CONFIG_OF_PROMTREE) += pdt.o obj-$(CONFIG_OF_ADDRESS) += address.o obj-$(CONFIG_OF_IRQ) += irq.o obj-$(CONFIG_OF_DEVICE) += device.o platform.o diff --git a/drivers/of/pdt.c b/drivers/of/pdt.c index c3c2d70b3f75..2fdb1b478d6f 100644 --- a/drivers/of/pdt.c +++ b/drivers/of/pdt.c @@ -1,4 +1,4 @@ -/* prom_common.c: OF device tree support common code. +/* pdt.c: OF PROM device tree support code. * * Paul Mackerras August 1996. * Copyright (C) 1996-2005 Paul Mackerras. @@ -7,6 +7,7 @@ * {engebret|bergner}@us.ibm.com * * Adapted for sparc by David S. Miller davem@davemloft.net + * Adapted for multiple architectures by Andres Salomon <dilinger@queued.net> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -20,13 +21,36 @@ #include <linux/mutex.h> #include <linux/slab.h> #include <linux/of.h> +#include <linux/of_pdt.h> #include <asm/prom.h> #include <asm/oplib.h> -#include <asm/leon.h> -void (*prom_build_more)(struct device_node *dp, struct device_node ***nextp); +void __initdata (*prom_build_more)(struct device_node *dp, + struct device_node ***nextp); -unsigned int prom_unique_id; +#if defined(CONFIG_SPARC) +unsigned int of_pdt_unique_id __initdata; + +#define of_pdt_incr_unique_id(p) do { \ + (p)->unique_id = of_pdt_unique_id++; \ +} while (0) + +static inline const char *of_pdt_node_name(struct device_node *dp) +{ + return dp->path_component_name; +} + +#else + +static inline void of_pdt_incr_unique_id(void *p) { } +static inline void irq_trans_init(struct device_node *dp) { } + +static inline const char *of_pdt_node_name(struct device_node *dp) +{ + return dp->name; +} + +#endif /* !CONFIG_SPARC */ static struct property * __init build_one_prop(phandle node, char *prev, char *special_name, @@ -43,7 +67,7 @@ static struct property * __init build_one_prop(phandle node, char *prev, tmp = NULL; } else { p = prom_early_alloc(sizeof(struct property) + 32); - p->unique_id = prom_unique_id++; + of_pdt_incr_unique_id(p); } p->name = (char *) (p + 1); @@ -124,7 +148,7 @@ static struct device_node * __init prom_create_node(phandle node, return NULL; dp = prom_early_alloc(sizeof(*dp)); - dp->unique_id = prom_unique_id++; + of_pdt_incr_unique_id(dp); dp->parent = parent; kref_init(&dp->kref); @@ -140,13 +164,13 @@ static struct device_node * __init prom_create_node(phandle node, return dp; } -char * __init build_full_name(struct device_node *dp) +static char * __init build_full_name(struct device_node *dp) { int len, ourlen, plen; char *n; plen = strlen(dp->parent->full_name); - ourlen = strlen(dp->path_component_name); + ourlen = strlen(of_pdt_node_name(dp)); len = ourlen + plen + 2; n = prom_early_alloc(len); @@ -155,7 +179,7 @@ char * __init build_full_name(struct device_node *dp) strcpy(n + plen, "/"); plen++; } - strcpy(n + plen, dp->path_component_name); + strcpy(n + plen, of_pdt_node_name(dp)); return n; } @@ -182,7 +206,9 @@ static struct device_node * __init prom_build_tree(struct device_node *parent, *(*nextp) = dp; *nextp = &dp->allnext; +#if defined(CONFIG_SPARC) dp->path_component_name = build_path_component(dp); +#endif dp->full_name = build_full_name(dp); dp->child = prom_build_tree(dp, prom_getchild(node), nextp); @@ -196,20 +222,18 @@ static struct device_node * __init prom_build_tree(struct device_node *parent, return ret; } -void __init prom_build_devicetree(void) +void __init of_pdt_build_devicetree(phandle root_node) { struct device_node **nextp; - allnodes = prom_create_node(prom_root_node, NULL); + allnodes = prom_create_node(root_node, NULL); +#if defined(CONFIG_SPARC) allnodes->path_component_name = ""; +#endif allnodes->full_name = "/"; nextp = &allnodes->allnext; allnodes->child = prom_build_tree(allnodes, prom_getchild(allnodes->phandle), &nextp); - of_console_init(); - - printk("PROM: Built device tree with %u bytes of memory.\n", - prom_early_allocated); } diff --git a/include/linux/of_pdt.h b/include/linux/of_pdt.h new file mode 100644 index 000000000000..c0a8774e45d0 --- /dev/null +++ b/include/linux/of_pdt.h @@ -0,0 +1,24 @@ +/* + * Definitions for building a device tree by calling into the + * Open Firmware PROM. + * + * Copyright (C) 2010 Andres Salomon <dilinger@queued.net> + * + * 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 _LINUX_OF_PDT_H +#define _LINUX_OF_PDT_H + +extern void *prom_early_alloc(unsigned long size); + +/* for building the device tree */ +extern void of_pdt_build_devicetree(phandle root_node); + +extern void (*prom_build_more)(struct device_node *dp, + struct device_node ***nextp); + +#endif /* _LINUX_OF_PDT_H */ |