Add architecture-specific global data

We plan to move architecture-specific data into a separate structure so
that we can make the rest of it common.

As a first step, create struct arch_global_data to hold these fields.
Initially it is empty.

This patch applies to all archs at once. I can split it if this is really
a pain.

Signed-off-by: Simon Glass <sjg@chromium.org>

14 files changed, 79 insertions, 2 deletions

diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h
index 41a26ed..9fddf3b 100644
--- a/arch/arm/include/asm/global_data.h
+++ b/arch/arm/include/asm/global_data.h
@@ -23,6 +23,11 @@
 
 #ifndef	__ASM_GBL_DATA_H
 #define __ASM_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory which is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -83,6 +88,7 @@ typedef	struct	global_data {
 	unsigned long	post_log_res; /* success of POST test */
 	unsigned long	post_init_f_time; /* When post_init_f started */
 #endif
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/avr32/include/asm/global_data.h b/arch/avr32/include/asm/global_data.h
index bf661e2..236a9da 100644
--- a/arch/avr32/include/asm/global_data.h
+++ b/arch/avr32/include/asm/global_data.h
@@ -22,6 +22,10 @@
 #ifndef __ASM_GLOBAL_DATA_H__
 #define __ASM_GLOBAL_DATA_H__
 
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -48,6 +52,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/blackfin/include/asm/global_data.h b/arch/blackfin/include/asm/global_data.h
index d91e5a4..109069f 100644
--- a/arch/blackfin/include/asm/global_data.h
+++ b/arch/blackfin/include/asm/global_data.h
@@ -30,6 +30,10 @@
 
 #include <asm/u-boot.h>
 
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -57,6 +61,7 @@ typedef struct global_data {
 
 	void	**jt;			/* jump table */
 	char	env_buf[32];		/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/m68k/include/asm/global_data.h b/arch/m68k/include/asm/global_data.h
index 0cdb11c..fd8aacb 100644
--- a/arch/m68k/include/asm/global_data.h
+++ b/arch/m68k/include/asm/global_data.h
@@ -23,6 +23,11 @@
 
 #ifndef	__ASM_GBL_DATA_H
 #define __ASM_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -66,6 +71,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* Standalone app jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/microblaze/include/asm/global_data.h b/arch/microblaze/include/asm/global_data.h
index 2111c7c..025131c 100644
--- a/arch/microblaze/include/asm/global_data.h
+++ b/arch/microblaze/include/asm/global_data.h
@@ -24,6 +24,11 @@
 
 #ifndef	__ASM_GBL_DATA_H
 #define __ASM_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -46,6 +51,7 @@ typedef	struct	global_data {
 	unsigned long	fb_base;	/* base address of frame buffer */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/mips/include/asm/global_data.h b/arch/mips/include/asm/global_data.h
index a735a8a..99949e1 100644
--- a/arch/mips/include/asm/global_data.h
+++ b/arch/mips/include/asm/global_data.h
@@ -26,6 +26,10 @@
 
 #include <asm/regdef.h>
 
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -59,6 +63,7 @@ typedef	struct	global_data {
 	unsigned long	env_valid;	/* Checksum of Environment valid? */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/nds32/include/asm/global_data.h b/arch/nds32/include/asm/global_data.h
index b1feb2c..475bb44 100644
--- a/arch/nds32/include/asm/global_data.h
+++ b/arch/nds32/include/asm/global_data.h
@@ -33,6 +33,11 @@
 
 #ifndef	__ASM_GBL_DATA_H
 #define __ASM_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -63,6 +68,7 @@ typedef	struct global_data {
 
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/nios2/include/asm/global_data.h b/arch/nios2/include/asm/global_data.h
index 413b485..cf8597b 100644
--- a/arch/nios2/include/asm/global_data.h
+++ b/arch/nios2/include/asm/global_data.h
@@ -23,6 +23,10 @@
 #ifndef	__ASM_NIOS2_GLOBALDATA_H_
 #define __ASM_NIOS2_GLOBALDATA_H_
 
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 typedef	struct	global_data {
 	bd_t		*bd;
 	unsigned long	flags;
@@ -42,6 +46,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* Standalone app jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/openrisc/include/asm/global_data.h b/arch/openrisc/include/asm/global_data.h
index 96f3f1c..b478afa 100644
--- a/arch/openrisc/include/asm/global_data.h
+++ b/arch/openrisc/include/asm/global_data.h
@@ -24,6 +24,11 @@
 
 #ifndef __ASM_GBL_DATA_H
 #define __ASM_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -44,6 +49,7 @@ typedef struct global_data {
 	unsigned long	fb_base;	/* base address of frame buffer */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/powerpc/include/asm/global_data.h b/arch/powerpc/include/asm/global_data.h
index cb3a80b..df621da 100644
--- a/arch/powerpc/include/asm/global_data.h
+++ b/arch/powerpc/include/asm/global_data.h
@@ -27,6 +27,10 @@
 #include "config.h"
 #include "asm/types.h"
 
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -184,6 +188,7 @@ typedef	struct	global_data {
 #endif
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/sandbox/include/asm/global_data.h b/arch/sandbox/include/asm/global_data.h
index 78a751d..f33f465 100644
--- a/arch/sandbox/include/asm/global_data.h
+++ b/arch/sandbox/include/asm/global_data.h
@@ -25,6 +25,11 @@
 
 #ifndef	__ASM_GBL_DATA_H
 #define __ASM_GBL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -46,6 +51,7 @@ typedef	struct global_data {
 	const void	*fdt_blob;	/* Our device tree, NULL if none */
 	void		**jt;		/* jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/sh/include/asm/global_data.h b/arch/sh/include/asm/global_data.h
index 9a2c193..db85d4d 100644
--- a/arch/sh/include/asm/global_data.h
+++ b/arch/sh/include/asm/global_data.h
@@ -27,6 +27,10 @@
 #ifndef	__ASM_SH_GLOBALDATA_H_
 #define __ASM_SH_GLOBALDATA_H_
 
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 typedef	struct global_data
 {
 	bd_t		*bd;
@@ -42,6 +46,7 @@ typedef	struct global_data
 	unsigned long	env_valid;	/* Checksum of Environment valid */
 	void		**jt;		/* Standalone app jump table */
 	char		env_buf[32];	/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/sparc/include/asm/global_data.h b/arch/sparc/include/asm/global_data.h
index aa63b35..a51c40b 100644
--- a/arch/sparc/include/asm/global_data.h
+++ b/arch/sparc/include/asm/global_data.h
@@ -29,6 +29,10 @@
 
 #include "asm/types.h"
 
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -74,6 +78,7 @@ typedef struct global_data {
 #endif
 	void	**jt;			/* jump table */
 	char	env_buf[32];		/* buffer for getenv() before reloc. */
+	struct arch_global_data arch;	/* architecture-specific data */
 } gd_t;
 
 #include <asm-generic/global_data_flags.h>
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index dc6402b..39c1acf 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -23,6 +23,13 @@
 
 #ifndef	__ASM_GBL_DATA_H
 #define __ASM_GBL_DATA_H
+
+#ifndef __ASSEMBLY__
+
+/* Architecture-specific global data */
+struct arch_global_data {
+};
+
 /*
  * The following data structure is placed in some memory wich is
  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
@@ -31,13 +38,12 @@
  * up the memory controller so that we can use RAM).
  */
 
-#ifndef __ASSEMBLY__
-
 #include <asm/u-boot.h>
 
 typedef struct global_data gd_t;
 
 struct global_data {
+	struct arch_global_data arch;	/* architecture-specific data */
 	/* NOTE: gd_addr MUST be first member of struct global_data! */
 	gd_t *gd_addr;	/* Location of Global Data */
 	bd_t		*bd;