diff options
Diffstat (limited to 'src/soc/broadcom/cygnus/ddr_init.c')
| -rwxr-xr-x | src/soc/broadcom/cygnus/ddr_init.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/soc/broadcom/cygnus/ddr_init.c b/src/soc/broadcom/cygnus/ddr_init.c index 27a981ee66..9aac58f7e9 100755 --- a/src/soc/broadcom/cygnus/ddr_init.c +++ b/src/soc/broadcom/cygnus/ddr_init.c @@ -1490,6 +1490,27 @@ void ddr_init2(void) } } +#if CONFIG_CYGNUS_DDR_AUTO_SELF_REFRESH_ENABLE +#if (DDR_AUTO_SELF_REFRESH_IDLE_COUNT > 0) & (DDR_AUTO_SELF_REFRESH_IDLE_COUNT <= 0xff) + /* Enable auto self-refresh */ + reg32_set_bits((unsigned int *)DDR_DENALI_CTL_57, + 0x2 << DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_R | + 0x2 << DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_R ); + + reg32_set_bits((unsigned int *)DDR_DENALI_CTL_58, + DDR_AUTO_SELF_REFRESH_IDLE_COUNT << DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_R); +#else + #error DDR_AUTO_SELF_REFRESH_IDLE_COUNT out of range +#endif +#else + /* Disable auto-self refresh */ + reg32_clear_bits((unsigned int *)DDR_DENALI_CTL_57, + 0x2 << DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_R | + 0x2 << DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_R ); + reg32_clear_bits((unsigned int *)DDR_DENALI_CTL_58, + 0xff << DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_R ); +#endif + /* Start the DDR */ reg32_set_bits((volatile uint32_t *)DDR_DENALI_CTL_00, 0x01); |