diff options
Diffstat (limited to 'arch/arm/mach-mxs/include/mach/init.h')
| -rw-r--r-- | arch/arm/mach-mxs/include/mach/init.h | 53 |
1 files changed, 47 insertions, 6 deletions
diff --git a/arch/arm/mach-mxs/include/mach/init.h b/arch/arm/mach-mxs/include/mach/init.h index 6526d303a1..53c1e05634 100644 --- a/arch/arm/mach-mxs/include/mach/init.h +++ b/arch/arm/mach-mxs/include/mach/init.h @@ -12,20 +12,61 @@ void mxs_early_delay(int delay); -void mx23_power_init(int __has_battery, int __use_battery_input, - int __use_5v_input); -void mx28_power_init(int __has_battery, int __use_battery_input, - int __use_5v_input); +/** + * Power configuration of the system: + * - POWER_USE_5V: use 5V input as power supply + * - POWER_USE_BATTERY: use battery input when the system is supplied by a battery + * - POWER_USE_BATTERY_INPUT: use battery input when the system is supplied by + * a DC source (instead of a real battery) on the battery input + * - POWER_ENABLE_4P2: power up the 4P2 regulator (implied for POWER_USE_5V) + */ +enum mxs_power_config { + POWER_USE_5V = 0b00000000, + POWER_USE_BATTERY = 0b00000001, + POWER_USE_BATTERY_INPUT = 0b00000010, + POWER_ENABLE_4P2 = 0b00000100, +}; +extern int power_config; +static inline enum mxs_power_config mxs_power_config_get_use(void) { + return (power_config & 0b00000011); +} + + +struct mxs_power_ctrl { + uint32_t target; /*< target voltage */ + uint32_t brownout; /*< brownout threshhold */ +}; +struct mxs_power_ctrls { + struct mxs_power_ctrl * vdda; /*< if non-null, set values for VDDA */ + struct mxs_power_ctrl * vddd; /*< if non-null, set values for VDDD */ + struct mxs_power_ctrl * vddio; /*< if non-null, set values for VDDIO */ + struct mxs_power_ctrl * vddmem; /*< if non-null, set values for VDDMEM */ +}; + +extern struct mxs_power_ctrl mxs_vddio_default; +extern struct mxs_power_ctrl mxs_vddd_default; +extern struct mxs_power_ctrl mxs_vdda_default; +extern struct mxs_power_ctrl mx23_vddmem_default; +extern struct mxs_power_ctrls mx23_power_default; +extern struct mxs_power_ctrls mx28_power_default; + +void mx23_power_init(const int config, struct mxs_power_ctrls *ctrls); +void mx28_power_init(const int config, struct mxs_power_ctrls *ctrls); void mxs_power_wait_pswitch(void); extern const uint32_t mx28_dram_vals_default[190]; extern uint32_t mx23_dram_vals[]; +#define PINCTRL_EMI_DS_CTRL_DDR_MODE_LPDDR1 (0b00 << 16) +#define PINCTRL_EMI_DS_CTRL_DDR_MODE_LVDDR2 (0b10 << 16) +#define PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2 (0b11 << 16) + void mx23_mem_init(void); -void mx28_mem_init(const uint32_t dram_vals[190]); +void mx28_mem_init(const int emi_ds_ctrl_ddr_mode, + const uint32_t dram_vals[190]); void mxs_mem_setup_cpu_and_hbus(void); void mxs_mem_setup_vdda(void); -void mxs_mem_init_clock(unsigned char divider); +void mxs_mem_init_clock(const uint8_t clk_emi_div, const uint8_t clk_emi_frac); void mxs_lradc_init(void); void mxs_lradc_enable_batt_measurement(void); |