diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/broadcom/cygnus/Kconfig | 8 | ||||
| -rwxr-xr-x | src/soc/broadcom/cygnus/ddr_init.c | 21 | ||||
| -rwxr-xr-x | src/soc/broadcom/cygnus/include/soc/config.h | 4 | ||||
| -rw-r--r-- | src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h | 62 |
4 files changed, 95 insertions, 0 deletions
diff --git a/src/soc/broadcom/cygnus/Kconfig b/src/soc/broadcom/cygnus/Kconfig index 821b2dc39c..b2f06133a9 100644 --- a/src/soc/broadcom/cygnus/Kconfig +++ b/src/soc/broadcom/cygnus/Kconfig @@ -51,6 +51,14 @@ config CYGNUS_DDR800 bool "DDR Speed at 800MHz" default y +config CYGNUS_DDR_AUTO_SELF_REFRESH_ENABLE + bool "Enable DDR auto self-refresh" + default y + help + Warning: M0 expects that auto self-refresh is enabled. Modify + with caution. + + config CYGNUS_SHMOO_REUSE_DDR_32BIT bool "Indicate if DDR width is 32-bit" default n 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); diff --git a/src/soc/broadcom/cygnus/include/soc/config.h b/src/soc/broadcom/cygnus/include/soc/config.h index 7511827338..0ba09e372b 100755 --- a/src/soc/broadcom/cygnus/include/soc/config.h +++ b/src/soc/broadcom/cygnus/include/soc/config.h @@ -29,4 +29,8 @@ #else #define SDI_NUM_ROWS 65536 #endif + +/* Idle count (in units of 1024 cycles) before auto entering self-refresh */ +#define DDR_AUTO_SELF_REFRESH_IDLE_COUNT 16 + #endif /* __SOC_BROADCOM_CYGNUS_CONFIG_H__ */ diff --git a/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h b/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h index 80cd9690e4..32668d1d86 100644 --- a/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h +++ b/src/soc/broadcom/cygnus/include/soc/halapis/ddr_regs.h @@ -114,6 +114,68 @@ #define DDR_DENALI_CTL_56_DATAMASK 0xffffffff #define DDR_DENALI_CTL_56_RDWRMASK 0x00000000 #define DDR_DENALI_CTL_56_RESETVALUE 0x0 +#define DDR_DENALI_CTL_57 0x180100e4 +#define DDR_DENALI_CTL_57_BASE 0x0e4 +#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_L 26 +#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_R 24 +#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_WIDTH 3 +#define DDR_DENALI_CTL_57__LP_AUTO_EXIT_EN_RESETVALUE 0x0 +#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_L 18 +#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_R 16 +#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_WIDTH 3 +#define DDR_DENALI_CTL_57__LP_AUTO_ENTRY_EN_RESETVALUE 0x0 +#define DDR_DENALI_CTL_57__LP_ARB_STATE_L 11 +#define DDR_DENALI_CTL_57__LP_ARB_STATE_R 8 +#define DDR_DENALI_CTL_57__LP_ARB_STATE_WIDTH 4 +#define DDR_DENALI_CTL_57__LP_ARB_STATE_RESETVALUE 0x0 +#define DDR_DENALI_CTL_57__LP_STATE_L 5 +#define DDR_DENALI_CTL_57__LP_STATE_R 0 +#define DDR_DENALI_CTL_57__LP_STATE_WIDTH 6 +#define DDR_DENALI_CTL_57__LP_STATE_RESETVALUE 0x20 +#define DDR_DENALI_CTL_57__RESERVED_0_L 31 +#define DDR_DENALI_CTL_57__RESERVED_0_R 27 +#define DDR_DENALI_CTL_57__RESERVED_1_L 23 +#define DDR_DENALI_CTL_57__RESERVED_1_R 19 +#define DDR_DENALI_CTL_57__RESERVED_2_L 15 +#define DDR_DENALI_CTL_57__RESERVED_2_R 12 +#define DDR_DENALI_CTL_57__RESERVED_3_L 7 +#define DDR_DENALI_CTL_57__RESERVED_3_R 6 +#define DDR_DENALI_CTL_57__RESERVED_L 31 +#define DDR_DENALI_CTL_57__RESERVED_R 27 +#define DDR_DENALI_CTL_57_WIDTH 27 +#define DDR_DENALI_CTL_57__WIDTH 27 +#define DDR_DENALI_CTL_57_ALL_L 26 +#define DDR_DENALI_CTL_57_ALL_R 0 +#define DDR_DENALI_CTL_57__ALL_L 26 +#define DDR_DENALI_CTL_57__ALL_R 0 +#define DDR_DENALI_CTL_57_DATAMASK 0x07070f3f +#define DDR_DENALI_CTL_57_RDWRMASK 0xf8f8f0c0 +#define DDR_DENALI_CTL_57_RESETVALUE 0x20 +#define DDR_DENALI_CTL_58 0x180100e8 +#define DDR_DENALI_CTL_58_BASE 0x0e8 +#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_L 31 +#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_R 24 +#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_WIDTH 8 +#define DDR_DENALI_CTL_58__LP_AUTO_SR_IDLE_RESETVALUE 0x00 +#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_L 19 +#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_R 8 +#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_WIDTH 12 +#define DDR_DENALI_CTL_58__LP_AUTO_PD_IDLE_RESETVALUE 0x000 +#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_L 1 +#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_R 0 +#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_WIDTH 2 +#define DDR_DENALI_CTL_58__LP_AUTO_MEM_GATE_EN_RESETVALUE 0x0 +#define DDR_DENALI_CTL_58__RESERVED_L 23 +#define DDR_DENALI_CTL_58__RESERVED_R 20 +#define DDR_DENALI_CTL_58_WIDTH 32 +#define DDR_DENALI_CTL_58__WIDTH 32 +#define DDR_DENALI_CTL_58_ALL_L 31 +#define DDR_DENALI_CTL_58_ALL_R 0 +#define DDR_DENALI_CTL_58__ALL_L 31 +#define DDR_DENALI_CTL_58__ALL_R 0 +#define DDR_DENALI_CTL_58_DATAMASK 0xff0fff03 +#define DDR_DENALI_CTL_58_RDWRMASK 0x00f000fc +#define DDR_DENALI_CTL_58_RESETVALUE 0x0 #define DDR_DENALI_CTL_175 0x180102bc #define DDR_DENALI_CTL_175_BASE 0x2bc |