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common/board_f: Initialized global data for generic board

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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>
This commit is contained in:
York Sun
2014-05-02 17:28:04 -07:00
committed by Tom Rini
parent 7e18a1b958
commit 2a1680e30e
6 changed files with 20 additions and 5 deletions
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12
common/board_f.c
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@@ -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