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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-04 10:02:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-04 10:02:38 -0700
commitd27050641e9bc056446deb0814e7ba1aa7911f5a (patch)
tree160f46d9a6df3d7234c71a9fbaa31ebcf89c04d0 /include
parentb77279bc2e81545b20824da701b349272a78e4e7 (diff)
parent43cb43678705e39b175b325f17938295996aefc7 (diff)
Merge tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into next
Pull DeviceTree updates from Rob Herring: - Another round of clean-up of FDT related code in architecture code. This removes knowledge of internal FDT details from most architectures except powerpc. - Conversion of kernel's custom FDT parsing code to use libfdt. - DT based initialization for generic serial earlycon. The introduction of generic serial earlycon support went in through the tty tree. - Improve the platform device naming for DT probed devices to ensure unique naming and use parent names instead of a global index. - Fix a race condition in of_update_property. - Unify the various linker section OF match tables and fix several function prototype errors. - Update platform_get_irq_byname to work in deferred probe cases. - 2 binding doc updates * tag 'devicetree-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (58 commits) of: handle NULL node in next_child iterators of/irq: provide more wrappers for !CONFIG_OF devicetree: bindings: Document micrel vendor prefix dt: bindings: dwc2: fix required value for the phy-names property of_pci_irq: kill useless variable in of_irq_parse_pci() of/irq: do irq resolution in platform_get_irq_byname() of: Add a testcase for of_find_node_by_path() of: Make of_find_node_by_path() handle /aliases of: Create unlocked version of for_each_child_of_node() lib: add glibc style strchrnul() variant of: Handle memory@0 node on PPC32 only pci/of: Remove dead code of: fix race between search and remove in of_update_property() of: Use NULL for pointers of: Stop naming platform_device using dcr address of: Ensure unique names without sacrificing determinism tty/serial: pl011: add DT based earlycon support of/fdt: add FDT serial scanning for earlycon of/fdt: add FDT address translation support serial: earlycon: add DT support ...
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/vmlinux.lds.h60
-rw-r--r--include/linux/clk-provider.h5
-rw-r--r--include/linux/clocksource.h16
-rw-r--r--include/linux/of.h22
-rw-r--r--include/linux/of_address.h1
-rw-r--r--include/linux/of_fdt.h64
-rw-r--r--include/linux/of_irq.h5
-rw-r--r--include/linux/of_pci.h36
-rw-r--r--include/linux/of_reserved_mem.h22
-rw-r--r--include/linux/serial_core.h6
-rw-r--r--include/linux/string.h3
11 files changed, 107 insertions, 133 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 146e4fffd710..d647637cd699 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -139,52 +139,23 @@
#define TRACE_SYSCALLS()
#endif
-#ifdef CONFIG_CLKSRC_OF
-#define CLKSRC_OF_TABLES() . = ALIGN(8); \
- VMLINUX_SYMBOL(__clksrc_of_table) = .; \
- *(__clksrc_of_table) \
- *(__clksrc_of_table_end)
-#else
-#define CLKSRC_OF_TABLES()
-#endif
-#ifdef CONFIG_IRQCHIP
-#define IRQCHIP_OF_MATCH_TABLE() \
+#define ___OF_TABLE(cfg, name) _OF_TABLE_##cfg(name)
+#define __OF_TABLE(cfg, name) ___OF_TABLE(cfg, name)
+#define OF_TABLE(cfg, name) __OF_TABLE(config_enabled(cfg), name)
+#define _OF_TABLE_0(name)
+#define _OF_TABLE_1(name) \
. = ALIGN(8); \
- VMLINUX_SYMBOL(__irqchip_begin) = .; \
- *(__irqchip_of_table) \
- *(__irqchip_of_end)
-#else
-#define IRQCHIP_OF_MATCH_TABLE()
-#endif
-
-#ifdef CONFIG_COMMON_CLK
-#define CLK_OF_TABLES() . = ALIGN(8); \
- VMLINUX_SYMBOL(__clk_of_table) = .; \
- *(__clk_of_table) \
- *(__clk_of_table_end)
-#else
-#define CLK_OF_TABLES()
-#endif
-
-#ifdef CONFIG_OF_RESERVED_MEM
-#define RESERVEDMEM_OF_TABLES() \
- . = ALIGN(8); \
- VMLINUX_SYMBOL(__reservedmem_of_table) = .; \
- *(__reservedmem_of_table) \
- *(__reservedmem_of_table_end)
-#else
-#define RESERVEDMEM_OF_TABLES()
-#endif
+ VMLINUX_SYMBOL(__##name##_of_table) = .; \
+ *(__##name##_of_table) \
+ *(__##name##_of_table_end)
-#ifdef CONFIG_SMP
-#define CPU_METHOD_OF_TABLES() . = ALIGN(8); \
- VMLINUX_SYMBOL(__cpu_method_of_table_begin) = .; \
- *(__cpu_method_of_table) \
- VMLINUX_SYMBOL(__cpu_method_of_table_end) = .;
-#else
-#define CPU_METHOD_OF_TABLES()
-#endif
+#define CLKSRC_OF_TABLES() OF_TABLE(CONFIG_CLKSRC_OF, clksrc)
+#define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip)
+#define CLK_OF_TABLES() OF_TABLE(CONFIG_COMMON_CLK, clk)
+#define RESERVEDMEM_OF_TABLES() OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem)
+#define CPU_METHOD_OF_TABLES() OF_TABLE(CONFIG_SMP, cpu_method)
+#define EARLYCON_OF_TABLES() OF_TABLE(CONFIG_SERIAL_EARLYCON, earlycon)
#define KERNEL_DTB() \
STRUCT_ALIGN(); \
@@ -513,7 +484,8 @@
CLKSRC_OF_TABLES() \
CPU_METHOD_OF_TABLES() \
KERNEL_DTB() \
- IRQCHIP_OF_MATCH_TABLE()
+ IRQCHIP_OF_MATCH_TABLE() \
+ EARLYCON_OF_TABLES()
#define INIT_TEXT \
*(.init.text) \
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index fb4eca6907cd..f295bab1865d 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -529,10 +529,7 @@ struct clk_onecell_data {
extern struct of_device_id __clk_of_table;
-#define CLK_OF_DECLARE(name, compat, fn) \
- static const struct of_device_id __clk_of_table_##name \
- __used __section(__clk_of_table) \
- = { .compatible = compat, .data = fn };
+#define CLK_OF_DECLARE(name, compat, fn) OF_DECLARE_1(clk, name, compat, fn)
#ifdef CONFIG_OF
int of_clk_add_provider(struct device_node *np,
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 67301a405712..a16b497d5159 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -339,23 +339,13 @@ extern int clocksource_mmio_init(void __iomem *, const char *,
extern int clocksource_i8253_init(void);
-struct device_node;
-typedef void(*clocksource_of_init_fn)(struct device_node *);
+#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
+ OF_DECLARE_1(clksrc, name, compat, fn)
+
#ifdef CONFIG_CLKSRC_OF
extern void clocksource_of_init(void);
-
-#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
- static const struct of_device_id __clksrc_of_table_##name \
- __used __section(__clksrc_of_table) \
- = { .compatible = compat, \
- .data = (fn == (clocksource_of_init_fn)NULL) ? fn : fn }
#else
static inline void clocksource_of_init(void) {}
-#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
- static const struct of_device_id __clksrc_of_table_##name \
- __attribute__((unused)) \
- = { .compatible = compat, \
- .data = (fn == (clocksource_of_init_fn)NULL) ? fn : fn }
#endif
#endif /* _LINUX_CLOCKSOURCE_H */
diff --git a/include/linux/of.h b/include/linux/of.h
index fa362867b453..196b34c1ef4e 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -764,4 +764,26 @@ static inline int of_get_available_child_count(const struct device_node *np)
return num;
}
+#ifdef CONFIG_OF
+#define _OF_DECLARE(table, name, compat, fn, fn_type) \
+ static const struct of_device_id __of_table_##name \
+ __used __section(__##table##_of_table) \
+ = { .compatible = compat, \
+ .data = (fn == (fn_type)NULL) ? fn : fn }
+#else
+#define _OF_DECLARE(table, name, compat, fn, fn_type) \
+ static const struct of_device_id __of_table_##name \
+ __attribute__((unused)) \
+ = { .compatible = compat, \
+ .data = (fn == (fn_type)NULL) ? fn : fn }
+#endif
+
+typedef int (*of_init_fn_2)(struct device_node *, struct device_node *);
+typedef void (*of_init_fn_1)(struct device_node *);
+
+#define OF_DECLARE_1(table, name, compat, fn) \
+ _OF_DECLARE(table, name, compat, fn, of_init_fn_1)
+#define OF_DECLARE_2(table, name, compat, fn) \
+ _OF_DECLARE(table, name, compat, fn, of_init_fn_2)
+
#endif /* _LINUX_OF_H */
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 5f6ed6b182b8..906ca7681756 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -40,7 +40,6 @@ extern u64 of_translate_dma_address(struct device_node *dev,
#ifdef CONFIG_OF_ADDRESS
extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
-extern bool of_can_translate_address(struct device_node *dev);
extern int of_address_to_resource(struct device_node *dev, int index,
struct resource *r);
extern struct device_node *of_find_matching_node_by_address(
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index ddd7219af8ac..05117899fcb4 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -17,60 +17,23 @@
/* Definitions used by the flattened device tree */
#define OF_DT_HEADER 0xd00dfeed /* marker */
-#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
#ifndef __ASSEMBLY__
-/*
- * 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 */
-};
#if defined(CONFIG_OF_FLATTREE)
struct device_node;
/* For scanning an arbitrary device-tree at any time */
-extern char *of_fdt_get_string(struct boot_param_header *blob, u32 offset);
-extern void *of_fdt_get_property(struct boot_param_header *blob,
+extern char *of_fdt_get_string(const void *blob, u32 offset);
+extern void *of_fdt_get_property(const void *blob,
unsigned long node,
const char *name,
- unsigned long *size);
-extern int of_fdt_is_compatible(struct boot_param_header *blob,
+ int *size);
+extern int of_fdt_is_compatible(const void *blob,
unsigned long node,
const char *compat);
-extern int of_fdt_match(struct boot_param_header *blob, unsigned long node,
+extern int of_fdt_match(const void *blob, unsigned long node,
const char *const *compat);
extern void of_fdt_unflatten_tree(unsigned long *blob,
struct device_node **mynodes);
@@ -78,21 +41,21 @@ extern void of_fdt_unflatten_tree(unsigned long *blob,
/* TBD: Temporary export of fdt globals - remove when code fully merged */
extern int __initdata dt_root_addr_cells;
extern int __initdata dt_root_size_cells;
-extern struct boot_param_header *initial_boot_params;
+extern void *initial_boot_params;
+
+extern char __dtb_start[];
+extern char __dtb_end[];
/* For scanning the flat device-tree at boot time */
-extern char *find_flat_dt_string(u32 offset);
extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
int depth, void *data),
void *data);
-extern void *of_get_flat_dt_prop(unsigned long node, const char *name,
- unsigned long *size);
+extern const void *of_get_flat_dt_prop(unsigned long node, const char *name,
+ int *size);
extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
extern int of_flat_dt_match(unsigned long node, const char *const *matches);
extern unsigned long of_get_flat_dt_root(void);
-extern int of_scan_flat_dt_by_path(const char *path,
- int (*it)(unsigned long node, const char *name, int depth, void *data),
- void *data);
+extern int of_get_flat_dt_size(void);
extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
int depth, void *data);
@@ -103,7 +66,7 @@ extern void early_init_dt_add_memory_arch(u64 base, u64 size);
extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size,
bool no_map);
extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align);
-extern u64 dt_mem_next_cell(int s, __be32 **cellp);
+extern u64 dt_mem_next_cell(int s, const __be32 **cellp);
/* Early flat tree scan hooks */
extern int early_init_dt_scan_root(unsigned long node, const char *uname,
@@ -120,6 +83,7 @@ extern void unflatten_device_tree(void);
extern void unflatten_and_copy_device_tree(void);
extern void early_init_devtree(void *);
extern void early_get_first_memblock_info(void *, phys_addr_t *);
+extern u64 fdt_translate_address(const void *blob, int node_offset);
#else /* CONFIG_OF_FLATTREE */
static inline void early_init_fdt_scan_reserved_mem(void) {}
static inline const char *of_flat_dt_get_machine_name(void) { return NULL; }
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index 6404253d810d..bfec136a6d1e 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -45,6 +45,7 @@ extern void of_irq_init(const struct of_device_id *matches);
#ifdef CONFIG_OF_IRQ
extern int of_irq_count(struct device_node *dev);
extern int of_irq_get(struct device_node *dev, int index);
+extern int of_irq_get_byname(struct device_node *dev, const char *name);
#else
static inline int of_irq_count(struct device_node *dev)
{
@@ -54,6 +55,10 @@ static inline int of_irq_get(struct device_node *dev, int index)
{
return 0;
}
+static inline int of_irq_get_byname(struct device_node *dev, const char *name)
+{
+ return 0;
+}
#endif
#if defined(CONFIG_OF)
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 1a1f5ffd5288..dde3a4a0fa5d 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -6,14 +6,44 @@
struct pci_dev;
struct of_phandle_args;
-int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
-int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
-
struct device_node;
+
+#ifdef CONFIG_OF
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
struct device_node *of_pci_find_child_device(struct device_node *parent,
unsigned int devfn);
int of_pci_get_devfn(struct device_node *np);
+int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
+#else
+static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
+{
+ return 0;
+}
+
+static inline struct device_node *of_pci_find_child_device(struct device_node *parent,
+ unsigned int devfn)
+{
+ return NULL;
+}
+
+static inline int of_pci_get_devfn(struct device_node *np)
+{
+ return -EINVAL;
+}
+
+static inline int
+of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return 0;
+}
+
+static inline int
+of_pci_parse_bus_range(struct device_node *node, struct resource *res)
+{
+ return -EINVAL;
+}
+#endif
#if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
int of_pci_msi_chip_add(struct msi_chip *chip);
diff --git a/include/linux/of_reserved_mem.h b/include/linux/of_reserved_mem.h
index 9b1fbb7f29fc..4669ddfdd5af 100644
--- a/include/linux/of_reserved_mem.h
+++ b/include/linux/of_reserved_mem.h
@@ -21,33 +21,19 @@ struct reserved_mem_ops {
struct device *dev);
};
-typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem,
- unsigned long node, const char *uname);
+typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
+
+#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
+ _OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)
#ifdef CONFIG_OF_RESERVED_MEM
void fdt_init_reserved_mem(void);
void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
phys_addr_t base, phys_addr_t size);
-
-#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
- static const struct of_device_id __reservedmem_of_table_##name \
- __used __section(__reservedmem_of_table) \
- = { .compatible = compat, \
- .data = (init == (reservedmem_of_init_fn)NULL) ? \
- init : init }
-
#else
static inline void fdt_init_reserved_mem(void) { }
static inline void fdt_reserved_mem_save_node(unsigned long node,
const char *uname, phys_addr_t base, phys_addr_t size) { }
-
-#define RESERVEDMEM_OF_DECLARE(name, compat, init) \
- static const struct of_device_id __reservedmem_of_table_##name \
- __attribute__((unused)) \
- = { .compatible = compat, \
- .data = (init == (reservedmem_of_init_fn)NULL) ? \
- init : init }
-
#endif
#endif /* __OF_RESERVED_MEM_H */
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 7a15b5b24c0b..5bbb809ee197 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -294,6 +294,9 @@ struct earlycon_device {
int setup_earlycon(char *buf, const char *match,
int (*setup)(struct earlycon_device *, const char *));
+extern int of_setup_earlycon(unsigned long addr,
+ int (*setup)(struct earlycon_device *, const char *));
+
#define EARLYCON_DECLARE(name, func) \
static int __init name ## _setup_earlycon(char *buf) \
{ \
@@ -301,6 +304,9 @@ static int __init name ## _setup_earlycon(char *buf) \
} \
early_param("earlycon", name ## _setup_earlycon);
+#define OF_EARLYCON_DECLARE(name, compat, fn) \
+ _OF_DECLARE(earlycon, name, compat, fn, void *)
+
struct uart_port *uart_get_console(struct uart_port *ports, int nr,
struct console *c);
void uart_parse_options(char *options, int *baud, int *parity, int *bits,
diff --git a/include/linux/string.h b/include/linux/string.h
index ac889c5ea11b..d36977e029af 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -52,6 +52,9 @@ extern int strncasecmp(const char *s1, const char *s2, size_t n);
#ifndef __HAVE_ARCH_STRCHR
extern char * strchr(const char *,int);
#endif
+#ifndef __HAVE_ARCH_STRCHRNUL
+extern char * strchrnul(const char *,int);
+#endif
#ifndef __HAVE_ARCH_STRNCHR
extern char * strnchr(const char *, size_t, int);
#endif