Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-25 06:00:43 +00:00
Code Issues Projects Releases Packages Wiki Activity

nios2: move gd and bd into BSS

Browse source 
As suggested by Graeme Russ, move gd and bd data structrures
to BSS instead of calculating the locations around the stack
and heap.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Thomas Chou 2012-04-23 10:55:02 +08:00
parent 0b15d51ed0
commit 7dfb060291
2 changed files with 9 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
arch/nios2/lib/board.c
View file

@ -87,17 +87,15 @@ void board_init (void)
{
bd_t *bd;
init_fnc_t **init_fnc_ptr;
static gd_t gd_data;
static bd_t bd_data;
/* Pointer is writable since we allocated a register for it.
* Nios treats CONFIG_SYS_GBL_DATA_OFFSET as an address.
*/
gd = (gd_t *)CONFIG_SYS_GBL_DATA_OFFSET;
/* Pointer is writable since we allocated a register for it. */
gd = &gd_data;
/* compiler optimization barrier needed for GCC >= 3.4 */
__asm__ __volatile__("": : :"memory");
memset( gd, 0, GENERATED_GBL_DATA_SIZE );
gd->bd = (bd_t *)(gd+1); /* At end of global data */
gd->bd = &bd_data;
gd->baudrate = CONFIG_BAUDRATE;
gd->cpu_clk = CONFIG_SYS_CLK_FREQ;

12
include/configs/nios2-generic.h
View file

@ -117,10 +117,9 @@
/*
* MEMORY ORGANIZATION
* -Monitor at top of sdram.
* -The heap is placed below the monitor
* -Global data is placed below the heap.
* -The stack is placed below global data (&grows down).
* -Monitor at top of sdram.
* -The heap is placed below the monitor
* -The stack is placed below the heap (&grows down).
*/
#define CONFIG_MONITOR_IS_IN_RAM
#define CONFIG_SYS_MONITOR_LEN 0x40000 /* Reserve 256k */
@ -130,10 +129,7 @@
#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 0x20000)
#define CONFIG_SYS_MALLOC_BASE (CONFIG_SYS_MONITOR_BASE - \
CONFIG_SYS_MALLOC_LEN)
#define CONFIG_SYS_GBL_DATA_OFFSET (CONFIG_SYS_MALLOC_BASE - \
GENERATED_GBL_DATA_SIZE - \
GENERATED_BD_INFO_SIZE)
#define CONFIG_SYS_INIT_SP CONFIG_SYS_GBL_DATA_OFFSET
#define CONFIG_SYS_INIT_SP CONFIG_SYS_MALLOC_BASE
/*
* MISC