From a6db8f3cc3879cc1650f8f42dcec7074dd3f8604 Mon Sep 17 00:00:00 2001 From: Hsin-Hsiung Wang Date: Wed, 24 Oct 2018 17:57:55 +0800 Subject: mediatek/mt8183: Add PMIC wrapper support The PMIC wrapper is a proprietary hardware to connect the PMIC. This patch implements PMIC wrapper driver for the communication with PMIC. BUG=b:80501386 BRANCH=none TEST=Boots correctly on Kukui Change-Id: Idbdb15f11227ded3f5d18fe6504c8c646973b733 Signed-off-by: Hsin-Hsiung Wang Reviewed-on: https://review.coreboot.org/c/29421 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner --- src/soc/mediatek/mt8183/Makefile.inc | 1 + src/soc/mediatek/mt8183/include/soc/addressmap.h | 1 + src/soc/mediatek/mt8183/include/soc/pmic_wrap.h | 414 +++++++++++++++++++++++ src/soc/mediatek/mt8183/pmic_wrap.c | 338 ++++++++++++++++++ 4 files changed, 754 insertions(+) create mode 100644 src/soc/mediatek/mt8183/include/soc/pmic_wrap.h create mode 100644 src/soc/mediatek/mt8183/pmic_wrap.c diff --git a/src/soc/mediatek/mt8183/Makefile.inc b/src/soc/mediatek/mt8183/Makefile.inc index 9fff52f6c7..24c4e46985 100644 --- a/src/soc/mediatek/mt8183/Makefile.inc +++ b/src/soc/mediatek/mt8183/Makefile.inc @@ -38,6 +38,7 @@ ramstage-y += ../common/cbmem.c emi.c ramstage-y += ../common/gpio.c gpio.c ramstage-y += ../common/mmu_operations.c mmu_operations.c ramstage-y += ../common/mtcmos.c mtcmos.c +ramstage-y += ../common/pmic_wrap.c pmic_wrap.c ramstage-y += soc.c ramstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c ramstage-y += ../common/timer.c diff --git a/src/soc/mediatek/mt8183/include/soc/addressmap.h b/src/soc/mediatek/mt8183/include/soc/addressmap.h index cee9bd8160..7578c289e1 100644 --- a/src/soc/mediatek/mt8183/include/soc/addressmap.h +++ b/src/soc/mediatek/mt8183/include/soc/addressmap.h @@ -29,6 +29,7 @@ enum { RGU_BASE = IO_PHYS + 0x00007000, GPT_BASE = IO_PHYS + 0x00008000, APMIXED_BASE = IO_PHYS + 0x0000C000, + PWRAP_BASE = IO_PHYS + 0x0000D000, EMI_BASE = IO_PHYS + 0x00219000, EMI_MPU_BASE = IO_PHYS + 0x00226000, DRAMC_CH_BASE = IO_PHYS + 0x00228000, diff --git a/src/soc/mediatek/mt8183/include/soc/pmic_wrap.h b/src/soc/mediatek/mt8183/include/soc/pmic_wrap.h new file mode 100644 index 0000000000..da942303a5 --- /dev/null +++ b/src/soc/mediatek/mt8183/include/soc/pmic_wrap.h @@ -0,0 +1,414 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __SOC_MEDIATEK_MT8183_PMIC_WRAP_H__ +#define __SOC_MEDIATEK_MT8183_PMIC_WRAP_H__ + +#include +#include +#include + +struct mt8183_pwrap_regs { + u32 mux_sel; + u32 wrap_en; + u32 dio_en; + u32 si_sample_ctrl; + u32 si_sample_ctrl_ulposc; + u32 rddmy; + u32 cshext_write; + u32 cshext_read; + u32 cslext_write; + u32 cslext_read; + u32 ext_ck_write; + u32 ext_ck_read; + u32 staupd_ctrl; + u32 staupd_grpen; + u32 eint_sta0_adr; + u32 eint_sta1_adr; + u32 eint_sta; + u32 eint_clr; + u32 eint_ctrl; + u32 staupd_man_trig; + u32 staupd_sta; + u32 wrap_sta; + u32 harb_init; + u32 harb_hprio; + u32 hiprio_arb_en; + u32 harb_sta0; + u32 harb_sta1; + u32 harb_sta2; + u32 man_en; + u32 man_cmd; + u32 man_rdata; + u32 man_vldclr; + u32 wacs0_en; + u32 init_done0; + u32 wacs1_en; + u32 init_done1; + u32 wacs2_en; + u32 init_done2; + u32 wacs3_en; + u32 init_done3; + u32 wacs_p2p_en; + u32 init_done_p2p; + u32 wacs_md32_en; + u32 init_done_md32; + u32 int0_en; + u32 int0_flg_raw; + u32 int0_flg; + u32 int0_clr; + u32 int1_en; + u32 int1_flg_raw; + u32 int1_flg; + u32 int1_clr; + u32 sig_adr; + u32 sig_mode; + u32 sig_value; + u32 sig_errval; + u32 crc_en; + u32 timer_en; + u32 timer_sta; + u32 wdt_unit; + u32 wdt_src_en_0; + u32 wdt_src_en_1; + u32 wdt_flg_0; + u32 wdt_flg_1; + u32 debug_int_sel; + u32 dvfs_adr0; + u32 dvfs_wdata0; + u32 dvfs_adr1; + u32 dvfs_wdata1; + u32 dvfs_adr2; + u32 dvfs_wdata2; + u32 dvfs_adr3; + u32 dvfs_wdata3; + u32 dvfs_adr4; + u32 dvfs_wdata4; + u32 dvfs_adr5; + u32 dvfs_wdata5; + u32 dvfs_adr6; + u32 dvfs_wdata6; + u32 dvfs_adr7; + u32 dvfs_wdata7; + u32 dvfs_adr8; + u32 dvfs_wdata8; + u32 dvfs_adr9; + u32 dvfs_wdata9; + u32 dvfs_adr10; + u32 dvfs_wdata10; + u32 dvfs_adr11; + u32 dvfs_wdata11; + u32 dvfs_adr12; + u32 dvfs_wdata12; + u32 dvfs_adr13; + u32 dvfs_wdata13; + u32 dvfs_adr14; + u32 dvfs_wdata14; + u32 dvfs_adr15; + u32 dvfs_wdata15; + u32 dcxo_enable; + u32 dcxo_conn_adr0; + u32 dcxo_conn_wdata0; + u32 dcxo_conn_adr1; + u32 dcxo_conn_wdata1; + u32 dcxo_nfc_adr0; + u32 dcxo_nfc_wdata0; + u32 dcxo_nfc_adr1; + u32 dcxo_nfc_wdata1; + u32 spminf_sta_0; + u32 spminf_sta_1; + u32 spminf_backup_sta; + u32 scpinf_sta; + u32 cipher_key_sel; + u32 cipher_iv_sel; + u32 cipher_en; + u32 cipher_rdy; + u32 cipher_mode; + u32 cipher_swrst; + u32 dcm_en; + u32 dcm_spi_dbc_prd; + u32 dcm_dbc_prd; + u32 int_gps_auxadc_cmd_addr; + u32 int_gps_auxadc_cmd; + u32 int_gps_auxadc_rdata_addr; + u32 ext_gps_auxadc_rdata_addr; + u32 gpsinf_0_sta; + u32 gpsinf_1_sta; + u32 md_adcinf_ctrl; + u32 md_auxadc_rdata_latest_addr; + u32 md_auxadc_rdata_wp_addr; + u32 md_auxadc_rdata[32]; + u32 md_adcinf_0_sta_0; + u32 md_adcinf_0_sta_1; + u32 md_adcinf_1_sta_0; + u32 md_adcinf_1_sta_1; + u32 swrst; + u32 spm_sleep_gating_ctrl; + u32 scp_sleep_gating_ctrl; + u32 priority_user_sel_0; + u32 priority_user_sel_1; + u32 priority_user_sel_2; + u32 priority_user_sel_3; + u32 priority_user_sel_4; + u32 arbiter_out_sel_0; + u32 arbiter_out_sel_1; + u32 arbiter_out_sel_2; + u32 arbiter_out_sel_3; + u32 arbiter_out_sel_4; + u32 starv_counter_0; + u32 starv_counter_1; + u32 starv_counter_2; + u32 starv_counter_3; + u32 starv_counter_4; + u32 starv_counter_5; + u32 starv_counter_6; + u32 starv_counter_7; + u32 starv_counter_8; + u32 starv_counter_9; + u32 starv_counter_10; + u32 starv_counter_11; + u32 starv_counter_12; + u32 starv_counter_13; + u32 starv_counter_14; + u32 starv_counter_15; + u32 starv_counter_16; + u32 starv_counter_0_status; + u32 starv_counter_1_status; + u32 starv_counter_2_status; + u32 starv_counter_3_status; + u32 starv_counter_4_status; + u32 starv_counter_5_status; + u32 starv_counter_6_status; + u32 starv_counter_7_status; + u32 starv_counter_8_status; + u32 starv_counter_9_status; + u32 starv_counter_10_status; + u32 starv_counter_11_status; + u32 starv_counter_12_status; + u32 starv_counter_13_status; + u32 starv_counter_14_status; + u32 starv_counter_15_status; + u32 starv_counter_16_status; + u32 starv_counter_clr; + u32 starv_prio_status; + u32 monitor_ctrl_0; + u32 monitor_ctrl_1; + u32 monitor_ctrl_2; + u32 monitor_ctrl_3; + u32 channel_sequence_0; + u32 channel_sequence_1; + u32 channel_sequence_2; + u32 channel_sequence_3; + u32 cmd_sequence_0; + u32 cmd_sequence_1; + u32 cmd_sequence_2; + u32 cmd_sequence_3; + u32 cmd_sequence_4; + u32 cmd_sequence_5; + u32 cmd_sequence_6; + u32 cmd_sequence_7; + u32 wdata_sequence_0; + u32 wdata_sequence_1; + u32 wdata_sequence_2; + u32 wdata_sequence_3; + u32 wdata_sequence_4; + u32 wdata_sequence_5; + u32 wdata_sequence_6; + u32 wdata_sequence_7; + u32 debug_sw_driver_0; + u32 debug_sw_driver_1; + u32 debug_sw_driver_2; + u32 debug_sw_driver_3; + u32 debug_sw_driver_4; + u32 debug_sw_driver_5; + u32 bwc_options; + u32 reserved1[524]; + u32 wacs0_cmd; + u32 wacs0_rdata; + u32 wacs0_vldclr; + u32 reserved2; + u32 wacs1_cmd; + u32 wacs1_rdata; + u32 wacs1_vldclr; + u32 reserved3; + u32 wacs2_cmd; + u32 wacs2_rdata; + u32 wacs2_vldclr; + u32 reserved4; + u32 wacs3_cmd; + u32 wacs3_rdata; + u32 wacs3_vldclr; +}; + +check_member(mt8183_pwrap_regs, bwc_options, 0x3CC); +check_member(mt8183_pwrap_regs, wacs3_vldclr, 0xC38); + +static struct mt8183_pwrap_regs * const mtk_pwrap = (void *)PWRAP_BASE; + +enum { + WACS2 = 1 << 2 +}; + +/* PMIC registers */ +enum { + PMIC_BASE = 0x0000, + PMIC_SMT_CON1 = PMIC_BASE + 0x0030, + PMIC_DRV_CON1 = PMIC_BASE + 0x0038, + PMIC_FILTER_CON0 = PMIC_BASE + 0x0040, + PMIC_GPIO_PULLEN0_CLR = PMIC_BASE + 0x0098, + PMIC_RG_SPI_CON0 = PMIC_BASE + 0x0408, + PMIC_RG_SPI_RECORD0 = PMIC_BASE + 0x040A, + PMIC_DEW_DIO_EN = PMIC_BASE + 0x040C, + PMIC_DEW_READ_TEST = PMIC_BASE + 0x040E, + PMIC_DEW_WRITE_TEST = PMIC_BASE + 0x0410, + PMIC_DEW_CRC_EN = PMIC_BASE + 0x0414, + PMIC_DEW_CRC_VAL = PMIC_BASE + 0x0416, + PMIC_DEW_RDDMY_NO = PMIC_BASE + 0x0426, + PMIC_CPU_INT_STA = PMIC_BASE + 0x042E, + PMIC_RG_SPI_CON2 = PMIC_BASE + 0x0432, + PMIC_RG_SPI_CON3 = PMIC_BASE + 0x0434, + PMIC_RG_SPI_CON4 = PMIC_BASE + 0x0436, + PMIC_RG_SPI_CON5 = PMIC_BASE + 0x0438, + PMIC_RG_SPI_CON6 = PMIC_BASE + 0x043A, + PMIC_RG_SPI_CON7 = PMIC_BASE + 0x043C, + PMIC_RG_SPI_CON8 = PMIC_BASE + 0x043E, + PMIC_RG_SPI_CON13 = PMIC_BASE + 0x0448, + PMIC_SPISLV_KEY = PMIC_BASE + 0x044A, + PMIC_PPCCTL0 = PMIC_BASE + 0x0A08, + PMIC_AUXADC_ADC17 = PMIC_BASE + 0x10AA, + PMIC_AUXADC_ADC31 = PMIC_BASE + 0x10C6, + PMIC_AUXADC_ADC32 = PMIC_BASE + 0x10C8, + PMIC_AUXADC_ADC35 = PMIC_BASE + 0x10CE, + PMIC_AUXADC_RQST0 = PMIC_BASE + 0x1108, + PMIC_AUXADC_RQST1 = PMIC_BASE + 0x110A, +}; + +enum { + E_CLK_EDGE = 1, + E_CLK_LAST_SETTING +}; + +enum { + GPS_MAIN = 0x40, + GPS_SUBSYS = 0x80 +}; + +enum { + ULPOSC_CLK = 0x1 << 23 +}; + +enum { + ULPOSC_OFF = 0x1 << 31, + ULPOSC_INV = 0x1 << 28, + ULPOSC_SEL_1 = 0x1 << 24, + ULPOSC_SEL_2 = 0x1 << 25, +}; + +enum { + TIMER_CG = 0x1, + AP_CG = 0x1 << 1, + MD_CG = 0x1 << 2, + CONN_CG = 0x1 << 3, +}; + +enum { + MODEM_TEMP_SHARE_CG = 0x1 << 8, +}; + +enum { + SIG_PMIC_0 = 0x1 << 0, + INT_STA_PMIC_0 = 0x1 << 2, + MD_ADC_DATA0 = 0x1 << 4, + MD_ADC_DATA1 = 0x1 << 5, + GPS_ADC_DATA0 = 0x1 << 6, + GPS_ADC_DATA1 = 0x1 << 7, +}; + +enum { + MD = 1, + MD_DVFS = 2, + POWER_HW = 4, + POWER_HW_BACKUP = 8, + ARB_PRIORITY = MD | MD_DVFS | POWER_HW | POWER_HW_BACKUP, +}; + +enum { + ARB_WACS0 = 0x1, + ARB_WACS2 = 0x1 << 2, + ARB_WACS_P2P = 0x1 << 4, + ARB_WACS_MD32 = 0x1 << 5, + ARB_MD = 0x1 << 6, + ARB_WACS_POWER_HW = 0x1 << 9, + ARB_DCXO_CONN = 0x1 << 11, + ARB_DCXO_NFC = 0x1 << 12, + ARB_MD_ADC0 = 0x1 << 13, + ARB_MD_ADC1 = 0x1 << 14, + ARB_GPS_0 = 0x1 << 15, + ARB_GPS_1 = 0x1 << 16, + STAUPD_HARB = 0x1 << 17, + ARB_USER_EN = ARB_WACS0 | ARB_WACS2 | ARB_WACS_P2P | ARB_WACS_MD32 | + ARB_MD | ARB_WACS_POWER_HW | ARB_DCXO_CONN | ARB_DCXO_NFC | + ARB_MD_ADC0 | ARB_MD_ADC1 | ARB_GPS_0 | ARB_GPS_1 | STAUPD_HARB, +}; + +enum { + STA_PD_98_5_US = 0X5, +}; + +enum { + WATCHDOG_TIMER_7_5_MS = 0XF, +}; + +enum { + WDT_MONITOR_ALL = 0XFFFF, +}; + +enum { + MONITOR_LATCH_MATCHED_TRANS = 0x1 << 28, + STARV_15 = 0x1 << 24, + DCXO = 0x1 << 19, + MONITOR_ALL_INT = 0XFFFFFFFF, + INT0_MONITOR = MONITOR_ALL_INT, + INT1_MONITOR = MONITOR_ALL_INT & + ~MONITOR_LATCH_MATCHED_TRANS & ~STARV_15 & ~DCXO, +}; + +enum { + SPI_CLK = 0x1, + SPI_CSN = 0x1 << 1, + SPI_MOSI = 0x1 << 2, + SPI_MISO = 0x1 << 3, + SPI_FILTER = (SPI_CLK | SPI_CSN | SPI_MOSI | SPI_MISO) << 4, + SPI_SMT = (SPI_CLK | SPI_CSN | SPI_MOSI | SPI_MISO), + SPI_PULL_DISABLE = (SPI_CLK | SPI_CSN | SPI_MOSI | SPI_MISO) << 4, +}; + +enum { + IO_4_MA = 0x8, +}; + +enum { + SPI_CLK_SHIFT = 0, + SPI_CSN_SHIFT = 4, + SPI_MOSI_SHIFT = 8, + SPI_MISO_SHIFT = 12, + SPI_DRIVING = (IO_4_MA << SPI_CLK_SHIFT | IO_4_MA << SPI_CSN_SHIFT | + IO_4_MA << SPI_MOSI_SHIFT | IO_4_MA << SPI_MISO_SHIFT), +}; + +enum { + DUMMY_READ_CYCLES = 0X8, +}; +#endif /* __SOC_MEDIATEK_MT8183_PMIC_WRAP_H__ */ diff --git a/src/soc/mediatek/mt8183/pmic_wrap.c b/src/soc/mediatek/mt8183/pmic_wrap.c new file mode 100644 index 0000000000..f074646e6d --- /dev/null +++ b/src/soc/mediatek/mt8183/pmic_wrap.c @@ -0,0 +1,338 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include + +#define PRIORITY_FIELD(x) ((x % 4) * 8) +#define PRIORITY_IN(id, priority) (id << PRIORITY_FIELD(priority)) +#define PRIORITY_OUT(id, priority) (priority << PRIORITY_FIELD(id)) + +enum { + MD_ADCINF0 = 8, + MD_ADCINF1 = 9, + STAUPD = 10, + GPSINF0 = 11, + + PRIORITY_IN_SEL_2 = PRIORITY_IN(MD_ADCINF0, 9) | + PRIORITY_IN(MD_ADCINF1, 10) | + PRIORITY_IN(STAUPD, 8) | + PRIORITY_IN(GPSINF0, 11), + + PRIORITY_OUT_SEL_2 = PRIORITY_OUT(MD_ADCINF0, 9) | + PRIORITY_OUT(MD_ADCINF1, 10) | + PRIORITY_OUT(STAUPD, 8) | + PRIORITY_OUT(GPSINF0, 11), +}; + +#define PENDING_US(x) x +enum { + STARVE_ENABLE = 0x1 << 10, + COUNTER0_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x2), + COUNTER1_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x3), + COUNTER2_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x3), + COUNTER3_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x3), + COUNTER4_PENDING_THRES = STARVE_ENABLE | PENDING_US(0xf), + COUNTER5_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x20), + COUNTER6_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x28), + COUNTER7_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x28), + COUNTER8_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x13), + COUNTER9_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x17), + COUNTER10_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x17), + COUNTER11_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x7c), + COUNTER12_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x7c), + COUNTER13_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x340), + COUNTER16_PENDING_THRES = STARVE_ENABLE | PENDING_US(0x340), +}; + + +static void pwrap_soft_reset(void) +{ + write32(&mt8183_infracfg->infra_globalcon_rst2_set, 0x1); + write32(&mt8183_infracfg->infra_globalcon_rst2_clr, 0x1); +} + +static void pwrap_spi_clk_set(void) +{ + write32(&mtk_topckgen->clk_cfg_5_clr, + ULPOSC_OFF | ULPOSC_INV | ULPOSC_SEL_1 | ULPOSC_SEL_2); + write32(&mtk_topckgen->clk_cfg_5_set, ULPOSC_SEL_1); + write32(&mtk_topckgen->clk_cfg_update, ULPOSC_CLK); + + write32(&mt8183_infracfg->module_sw_cg_0_set, + TIMER_CG | AP_CG | MD_CG | CONN_CG); + write32(&mt8183_infracfg->module_sw_cg_2_set, MODEM_TEMP_SHARE_CG); + + pwrap_soft_reset(); + + write32(&mt8183_infracfg->module_sw_cg_0_clr, + TIMER_CG | AP_CG | MD_CG | CONN_CG); + write32(&mt8183_infracfg->module_sw_cg_2_clr, MODEM_TEMP_SHARE_CG); +} + +static s32 pwrap_init_dio(u16 dio_en) +{ + pwrap_write_nochk(PMIC_DEW_DIO_EN, dio_en); + + if (!wait_us(100, + !wait_for_idle_and_sync(read32(&mtk_pwrap->wacs2_rdata)))) + return -1; + + write32(&mtk_pwrap->dio_en, dio_en); + return 0; +} + +static void pwrap_lock_spislvreg(void) +{ + pwrap_write_nochk(PMIC_SPISLV_KEY, 0x0); +} + +static void pwrap_initstaupd(void) +{ + write32(&mtk_pwrap->staupd_grpen, + SIG_PMIC_0 | INT_STA_PMIC_0 | MD_ADC_DATA0 | + MD_ADC_DATA1 | GPS_ADC_DATA0 | GPS_ADC_DATA1); + + /* CRC */ + pwrap_write_nochk(PMIC_DEW_CRC_EN, 0x1); + write32(&mtk_pwrap->crc_en, 0x1); + write32(&mtk_pwrap->sig_adr, PMIC_DEW_CRC_VAL); + + write32(&mtk_pwrap->eint_sta0_adr, PMIC_CPU_INT_STA); + + /* MD ADC Interface */ + write32(&mtk_pwrap->md_auxadc_rdata_latest_addr, + (PMIC_AUXADC_ADC35 << 16) + PMIC_AUXADC_ADC31); + write32(&mtk_pwrap->md_auxadc_rdata_wp_addr, + (PMIC_AUXADC_ADC35 << 16) + PMIC_AUXADC_ADC31); + for (size_t i = 0; i < 32; i++) + write32(&mtk_pwrap->md_auxadc_rdata[i], + (PMIC_AUXADC_ADC35 << 16) + PMIC_AUXADC_ADC31); + + write32(&mtk_pwrap->int_gps_auxadc_cmd_addr, + (PMIC_AUXADC_RQST1 << 16) + PMIC_AUXADC_RQST0); + write32(&mtk_pwrap->int_gps_auxadc_cmd, (GPS_MAIN << 16) + GPS_SUBSYS); + write32(&mtk_pwrap->int_gps_auxadc_rdata_addr, + (PMIC_AUXADC_ADC32 << 16) + PMIC_AUXADC_ADC17); + + write32(&mtk_pwrap->ext_gps_auxadc_rdata_addr, PMIC_AUXADC_ADC31); +} + +static void pwrap_starve_set(void) +{ + write32(&mtk_pwrap->harb_hprio, ARB_PRIORITY); + write32(&mtk_pwrap->starv_counter_0, COUNTER0_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_1, COUNTER1_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_2, COUNTER2_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_3, COUNTER3_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_4, COUNTER4_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_5, COUNTER5_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_6, COUNTER6_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_7, COUNTER7_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_8, COUNTER8_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_9, COUNTER9_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_10, COUNTER10_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_11, COUNTER11_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_12, COUNTER12_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_13, COUNTER13_PENDING_THRES); + write32(&mtk_pwrap->starv_counter_16, COUNTER16_PENDING_THRES); +} + +static void pwrap_enable(void) +{ + write32(&mtk_pwrap->hiprio_arb_en, ARB_USER_EN); + write32(&mtk_pwrap->wacs0_en, 0x1); + write32(&mtk_pwrap->wacs2_en, 0x1); + write32(&mtk_pwrap->wacs_p2p_en, 0x1); + write32(&mtk_pwrap->wacs_md32_en, 0x1); + write32(&mtk_pwrap->staupd_ctrl, STA_PD_98_5_US); + write32(&mtk_pwrap->wdt_unit, WATCHDOG_TIMER_7_5_MS); + write32(&mtk_pwrap->wdt_src_en_0, WDT_MONITOR_ALL); + write32(&mtk_pwrap->wdt_src_en_1, WDT_MONITOR_ALL); + write32(&mtk_pwrap->timer_en, 0x1); + write32(&mtk_pwrap->int0_en, INT0_MONITOR); + write32(&mtk_pwrap->int1_en, INT1_MONITOR); +} + +static s32 pwrap_init_sistrobe(void) +{ + u16 rdata; + int si_sample_ctrl; + int test_data[30] = { + 0x6996, 0x9669, 0x6996, 0x9669, 0x6996, 0x9669, 0x6996, + 0x9669, 0x6996, 0x9669, 0x5AA5, 0xA55A, 0x5AA5, 0xA55A, + 0x5AA5, 0xA55A, 0x5AA5, 0xA55A, 0x5AA5, 0xA55A, 0x1B27, + 0x1B27, 0x1B27, 0x1B27, 0x1B27, 0x1B27, 0x1B27, 0x1B27, + 0x1B27, 0x1B27}; + + for (si_sample_ctrl = 0; si_sample_ctrl < 16; si_sample_ctrl++) { + write32(&mtk_pwrap->si_sample_ctrl, si_sample_ctrl << 5); + + pwrap_read_nochk(PMIC_DEW_READ_TEST, &rdata); + if (rdata == DEFAULT_VALUE_READ_TEST) + break; + } + + if (si_sample_ctrl == 16) + return E_CLK_EDGE; + + if (si_sample_ctrl == 15) + return E_CLK_LAST_SETTING; + + /* + * Add the delay time of SPI data from PMIC to align the start boundary + * to current sampling clock edge. + */ + for (int si_dly = 0; si_dly < 10; si_dly++) { + pwrap_write_nochk(PMIC_RG_SPI_CON2, si_dly); + + int start_boundary_found = 0; + for (size_t i = 0; i < 30; i++) { + pwrap_write_nochk(PMIC_DEW_WRITE_TEST, test_data[i]); + pwrap_read_nochk(PMIC_DEW_WRITE_TEST, &rdata); + if ((rdata & 0x7fff) != (test_data[i] & 0x7fff)) { + start_boundary_found = 1; + break; + } + } + if (start_boundary_found == 1) + break; + } + + /* + * Change the sampling clock edge to the next one which is the middle + * of SPI data window. + */ + write32(&mtk_pwrap->si_sample_ctrl, ++si_sample_ctrl << 5); + + /* Read Test */ + pwrap_read_nochk(PMIC_DEW_READ_TEST, &rdata); + if (rdata != DEFAULT_VALUE_READ_TEST) { + pwrap_err("rdata = %#x, exp = %#x\n", rdata, + DEFAULT_VALUE_READ_TEST); + return E_PWR_READ_TEST_FAIL; + } + + return 0; +} + +static void pwrap_init_spislv(void) +{ + /* Turn on IO filter function */ + pwrap_write_nochk(PMIC_FILTER_CON0, SPI_FILTER); + /* Turn on IO SMT function to improve noise immunity */ + pwrap_write_nochk(PMIC_SMT_CON1, SPI_SMT); + /* Turn off IO pull function for power saving */ + pwrap_write_nochk(PMIC_GPIO_PULLEN0_CLR, SPI_PULL_DISABLE); + /* Enable SPI R/W in suspend mode */ + pwrap_write_nochk(PMIC_RG_SPI_CON0, 0x1); + /* Set PMIC GPIO driving current to 4mA */ + pwrap_write_nochk(PMIC_DRV_CON1, SPI_DRIVING); +} + +static void pwrap_init_reg_clock(void) +{ + write32(&mtk_pwrap->ext_ck_write, 0x1); + + pwrap_write_nochk(PMIC_DEW_RDDMY_NO, DUMMY_READ_CYCLES); + write32(&mtk_pwrap->rddmy, DUMMY_READ_CYCLES); + + write32(&mtk_pwrap->cshext_write, 0); + write32(&mtk_pwrap->cshext_read, 0); + write32(&mtk_pwrap->cslext_write, 0); + write32(&mtk_pwrap->cslext_read, 0); +} + +s32 pwrap_init(void) +{ + s32 sub_return = 0, sub_return1 = 0; + u16 rdata; + + pwrap_spi_clk_set(); + + /* Reset spislv */ + sub_return = pwrap_reset_spislv(); + if (sub_return != 0) { + pwrap_err("reset_spislv fail, ret=%d\n", sub_return); + return E_PWR_INIT_RESET_SPI; + } + + /* Enable WRAP */ + write32(&mtk_pwrap->wrap_en, 0x1); + + /* Enable WACS2 */ + write32(&mtk_pwrap->wacs2_en, 0x1); + write32(&mtk_pwrap->hiprio_arb_en, WACS2); /* ONLY WACS2 */ + + /* SPI Waveform Configuration */ + pwrap_init_reg_clock(); + + /* SPI Slave Configuration */ + pwrap_init_spislv(); + + /* Enable DIO mode */ + sub_return = pwrap_init_dio(1); + if (sub_return != 0) { + pwrap_err("dio test error, ret=%d\n", sub_return); + return E_PWR_INIT_DIO; + } + + /* Input data calibration flow; */ + sub_return = pwrap_init_sistrobe(); + if (sub_return != 0) { + pwrap_err("InitSiStrobe fail,ret=%d\n", sub_return); + return E_PWR_INIT_SIDLY; + } + + /* + * Write test using WACS2, + * make sure the read/write function ready. + */ + sub_return = pwrap_write_nochk(PMIC_DEW_WRITE_TEST, WRITE_TEST_VALUE); + sub_return1 = pwrap_read_nochk(PMIC_DEW_WRITE_TEST, &rdata); + if (rdata != WRITE_TEST_VALUE || sub_return || sub_return1) { + pwrap_err("write error, rdata=%#x, return=%d, return1=%d\n", + rdata, sub_return, sub_return1); + return E_PWR_INIT_WRITE_TEST; + } + + /* + * Status update function initialization + * 1. Signature Checking using CRC (CRC 0 only) + * 2. EINT update + * 3. Read back Auxadc thermal data for GPS + */ + pwrap_initstaupd(); + + write32(&mtk_pwrap->priority_user_sel_2, PRIORITY_IN_SEL_2); + write32(&mtk_pwrap->arbiter_out_sel_2, PRIORITY_OUT_SEL_2); + + pwrap_starve_set(); + + pwrap_enable(); + + /* Initialization Done */ + write32(&mtk_pwrap->init_done0, 0x1); + write32(&mtk_pwrap->init_done2, 0x1); + write32(&mtk_pwrap->init_done_p2p, 0x1); + write32(&mtk_pwrap->init_done_md32, 0x1); + + /* Lock SPISLV Registers */ + pwrap_lock_spislvreg(); + + return 0; +} -- cgit v1.2.3