SmartAudio/lichee/linux-4.9/drivers/soc/sunxi/pm/mem_sram.c

48 lines
1.2 KiB
C
Executable File

#include "pm_types.h"
#include "pm_i.h"
/*
*********************************************************************************************************
* MEM SRAM SAVE
*
* Description: mem sram save.
*
* Arguments : none.
*
* Returns : 0/-1;
*********************************************************************************************************
*/
__s32 mem_sram_save(struct sram_state *psram_state)
{
int i=0;
/*save all the sram reg*/
for(i=0; i<(SRAM_REG_LENGTH); i++){
psram_state->sram_reg_back[i] = *(volatile __u32 *)(IO_ADDRESS(AW_SRAMCTRL_BASE) + i*0x04);
}
return 0;
}
/*
*********************************************************************************************************
* MEM sram restore
*
* Description: mem sram restore.
*
* Arguments : none.
*
* Returns : 0/-1;
*********************************************************************************************************
*/
__s32 mem_sram_restore(struct sram_state *psram_state)
{
int i=0;
/*restore all the sram reg*/
for(i=0; i<(SRAM_REG_LENGTH); i++){
*(volatile __u32 *)(IO_ADDRESS(AW_SRAMCTRL_BASE) + i*0x04) = psram_state->sram_reg_back[i];
}
return 0;
}