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Diffstat (limited to 'include/mach/mxs/init.h')
| -rw-r--r-- | include/mach/mxs/init.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/include/mach/mxs/init.h b/include/mach/mxs/init.h new file mode 100644 index 0000000000..53c1e05634 --- /dev/null +++ b/include/mach/mxs/init.h @@ -0,0 +1,74 @@ +/* + * Freescale i.MX28 SPL functions + * + * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> + * on behalf of DENX Software Engineering GmbH + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __M28_INIT_H__ +#define __M28_INIT_H__ + +void mxs_early_delay(int delay); + +/** + * 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 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(const uint8_t clk_emi_div, const uint8_t clk_emi_frac); + +void mxs_lradc_init(void); +void mxs_lradc_enable_batt_measurement(void); + +#endif /* __M28_INIT_H__ */ |