diff options
| author | York Sun <yorksun@freescale.com> | 2014-05-02 17:28:04 -0700 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-05-12 15:20:05 -0400 |
| commit | 2a1680e30e3fa8257b60cb9dbd7add32539ac470 (patch) | |
| tree | cc8ddc1f7e452ba131820fd872833855f440d82d | |
| parent | 7e18a1b9586e4d992f49bcd0728a93f8828b9f98 (diff) | |
common/board_f: Initialized global data for generic board
Some platforms (tested on mpc85xx, mpc86xx) use global data before calling
function baord_inti_f(). The data should not be cleared later. Any arch
which uses global data in generic board board_init_f() should define
CONFIG_SYS_GENERIC_GLOBAL_DATA.
Signed-off-by: York Sun <yorksun@freescale.com>
CC: Scott Wood <scottwood@freescale.com>
CC: Simon Glass <sjg@chromium.org>
CC: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | README | 6 | ||||
| -rw-r--r-- | arch/arc/include/asm/config.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/config.h | 2 | ||||
| -rw-r--r-- | arch/mips/include/asm/config.h | 2 | ||||
| -rw-r--r-- | arch/sandbox/include/asm/config.h | 1 | ||||
| -rw-r--r-- | common/board_f.c | 12 |
6 files changed, 20 insertions, 5 deletions
@@ -451,6 +451,12 @@ The following options need to be configured: supported, core will start to execute uboot when wakes up. - Generic CPU options: + CONFIG_SYS_GENERIC_GLOBAL_DATA + Defines global data is initialized in generic board board_init_f(). + If this macro is defined, global data is created and cleared in + generic board board_init_f(). Without this macro, architecture/board + should initialize global data before calling board_init_f(). + CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN Defines the endianess of the CPU. Implementation of those diff --git a/arch/arc/include/asm/config.h b/arch/arc/include/asm/config.h index 5761def1e7..3d331cc970 100644 --- a/arch/arc/include/asm/config.h +++ b/arch/arc/include/asm/config.h @@ -7,6 +7,8 @@ #ifndef __ASM_ARC_CONFIG_H_ #define __ASM_ARC_CONFIG_H_ +#define CONFIG_SYS_GENERIC_GLOBAL_DATA + #define CONFIG_LMB #endif /*__ASM_ARC_CONFIG_H_ */ diff --git a/arch/arm/include/asm/config.h b/arch/arm/include/asm/config.h index abf79e5c9e..2a20a770bc 100644 --- a/arch/arm/include/asm/config.h +++ b/arch/arm/include/asm/config.h @@ -7,6 +7,8 @@ #ifndef _ASM_CONFIG_H_ #define _ASM_CONFIG_H_ +#define CONFIG_SYS_GENERIC_GLOBAL_DATA + #define CONFIG_LMB #define CONFIG_SYS_BOOT_RAMDISK_HIGH diff --git a/arch/mips/include/asm/config.h b/arch/mips/include/asm/config.h index 3a891ba627..1c8a42bd2f 100644 --- a/arch/mips/include/asm/config.h +++ b/arch/mips/include/asm/config.h @@ -7,6 +7,8 @@ #ifndef _ASM_CONFIG_H_ #define _ASM_CONFIG_H_ +#define CONFIG_SYS_GENERIC_GLOBAL_DATA + #define CONFIG_LMB #define CONFIG_SYS_BOOT_RAMDISK_HIGH diff --git a/arch/sandbox/include/asm/config.h b/arch/sandbox/include/asm/config.h index ec7729eb4c..6c1bff99c2 100644 --- a/arch/sandbox/include/asm/config.h +++ b/arch/sandbox/include/asm/config.h @@ -7,6 +7,7 @@ #ifndef _ASM_CONFIG_H_ #define _ASM_CONFIG_H_ +#define CONFIG_SYS_GENERIC_GLOBAL_DATA #define CONFIG_SANDBOX_ARCH /* Used by drivers/spi/sandbox_spi.c and arch/sandbox/include/asm/state.h */ diff --git a/common/board_f.c b/common/board_f.c index aea6bff555..b6be386a7f 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -961,20 +961,22 @@ static init_fnc_t init_sequence_f[] = { void board_init_f(ulong boot_flags) { -#ifndef CONFIG_X86 +#ifdef CONFIG_SYS_GENERIC_GLOBAL_DATA + /* + * For some archtectures, global data is initialized and used before + * calling this function. The data should be preserved. For others, + * CONFIG_SYS_GENERIC_GLOBAL_DATA should be defined and use the stack + * here to host global data until relocation. + */ gd_t data; gd = &data; -#endif /* * Clear global data before it is accessed at debug print * in initcall_run_list. Otherwise the debug print probably * get the wrong vaule of gd->have_console. */ -#if !defined(CONFIG_CPM2) && !defined(CONFIG_MPC512X) && \ - !defined(CONFIG_MPC83xx) && !defined(CONFIG_MPC85xx) && \ - !defined(CONFIG_MPC86xx) && !defined(CONFIG_X86) zero_global_data(); #endif |