mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-04 05:50:17 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
/*
|
|
* (C) Copyright 2000-2002
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <commproc.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#ifdef CONFIG_SYS_ALLOC_DPRAM
|
|
|
|
int dpram_init (void)
|
|
{
|
|
/* Reclaim the DP memory for our use. */
|
|
gd->arch.dp_alloc_base = CPM_DATAONLY_BASE;
|
|
gd->arch.dp_alloc_top = CPM_DATAONLY_BASE + CPM_DATAONLY_SIZE;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* Allocate some memory from the dual ported ram. We may want to
|
|
* enforce alignment restrictions, but right now everyone is a good
|
|
* citizen.
|
|
*/
|
|
uint dpram_alloc (uint size)
|
|
{
|
|
uint addr = gd->arch.dp_alloc_base;
|
|
|
|
if ((gd->arch.dp_alloc_base + size) >= gd->arch.dp_alloc_top)
|
|
return (CPM_DP_NOSPACE);
|
|
|
|
gd->arch.dp_alloc_base += size;
|
|
|
|
return addr;
|
|
}
|
|
|
|
uint dpram_base (void)
|
|
{
|
|
return gd->arch.dp_alloc_base;
|
|
}
|
|
|
|
/* Allocate some memory from the dual ported ram. We may want to
|
|
* enforce alignment restrictions, but right now everyone is a good
|
|
* citizen.
|
|
*/
|
|
uint dpram_alloc_align (uint size, uint align)
|
|
{
|
|
uint addr, mask = align - 1;
|
|
|
|
addr = (gd->arch.dp_alloc_base + mask) & ~mask;
|
|
|
|
if ((addr + size) >= gd->arch.dp_alloc_top)
|
|
return (CPM_DP_NOSPACE);
|
|
|
|
gd->arch.dp_alloc_base = addr + size;
|
|
|
|
return addr;
|
|
}
|
|
|
|
uint dpram_base_align (uint align)
|
|
{
|
|
uint mask = align - 1;
|
|
|
|
return (gd->arch.dp_alloc_base + mask) & ~mask;
|
|
}
|
|
#endif /* CONFIG_SYS_ALLOC_DPRAM */
|