diff options
Diffstat (limited to 'arch/powerpc/include/asm/prom.h')
| -rw-r--r-- | arch/powerpc/include/asm/prom.h | 75 |
1 files changed, 45 insertions, 30 deletions
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h index 7d0c7f3a717..74b79f07f04 100644 --- a/arch/powerpc/include/asm/prom.h +++ b/arch/powerpc/include/asm/prom.h @@ -1,4 +1,3 @@ -#include <linux/of.h> /* linux/of.h gets to determine #include ordering */ #ifndef _POWERPC_PROM_H #define _POWERPC_PROM_H #ifdef __KERNEL__ @@ -20,20 +19,55 @@ #include <asm/irq.h> #include <linux/atomic.h> -#define HAVE_ARCH_DEVTREE_FIXUPS +/* These includes should be removed once implicit includes are cleaned up. */ +#include <linux/of.h> +#include <linux/of_fdt.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/platform_device.h> + +#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */ +#define OF_DT_END_NODE 0x2 /* End node */ +#define OF_DT_PROP 0x3 /* Property: name off, size, + * content */ +#define OF_DT_NOP 0x4 /* nop */ +#define OF_DT_END 0x9 + +#define OF_DT_VERSION 0x10 /* - * OF address retreival & translation + * This is what gets passed to the kernel by prom_init or kexec + * + * The dt struct contains the device tree structure, full pathes and + * property contents. The dt strings contain a separate block with just + * the strings for the property names, and is fully page aligned and + * self contained in a page, so that it can be kept around by the kernel, + * each property name appears only once in this page (cheap compression) + * + * the mem_rsvmap contains a map of reserved ranges of physical memory, + * passing it here instead of in the device-tree itself greatly simplifies + * the job of everybody. It's just a list of u64 pairs (base/size) that + * ends when size is 0 */ +struct boot_param_header { + __be32 magic; /* magic word OF_DT_HEADER */ + __be32 totalsize; /* total size of DT block */ + __be32 off_dt_struct; /* offset to structure */ + __be32 off_dt_strings; /* offset to strings */ + __be32 off_mem_rsvmap; /* offset to memory reserve map */ + __be32 version; /* format version */ + __be32 last_comp_version; /* last compatible version */ + /* version 2 fields below */ + __be32 boot_cpuid_phys; /* Physical CPU id we're booting on */ + /* version 3 fields below */ + __be32 dt_strings_size; /* size of the DT strings block */ + /* version 17 fields below */ + __be32 dt_struct_size; /* size of the DT structure block */ +}; -/* Translate a DMA address from device space to CPU space */ -extern u64 of_translate_dma_address(struct device_node *dev, - const __be32 *in_addr); - -#ifdef CONFIG_PCI -extern unsigned long pci_address_to_pio(phys_addr_t address); -#define pci_address_to_pio pci_address_to_pio -#endif /* CONFIG_PCI */ +/* + * OF address retreival & translation + */ /* Parse the ibm,dma-window property of an OF node into the busno, phys and * size parameters. @@ -44,16 +78,6 @@ void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window, extern void kdump_move_device_tree(void); -/* cache lookup */ -struct device_node *of_find_next_cache_node(struct device_node *np); - -#ifdef CONFIG_NUMA -extern int of_node_to_nid(struct device_node *device); -#else -static inline int of_node_to_nid(struct device_node *device) { return 0; } -#endif -#define of_node_to_nid of_node_to_nid - extern void of_instantiate_rtc(void); extern int of_get_ibm_chip_id(struct device_node *np); @@ -143,14 +167,5 @@ struct of_drconf_cell { */ extern unsigned char ibm_architecture_vec[]; -/* These includes are put at the bottom because they may contain things - * that are overridden by this file. Ideally they shouldn't be included - * by this file, but there are a bunch of .c files that currently depend - * on it. Eventually they will be cleaned up. */ -#include <linux/of_fdt.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> -#include <linux/platform_device.h> - #endif /* __KERNEL__ */ #endif /* _POWERPC_PROM_H */ |