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 <hsin-hsiung.wang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/29421
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Hsin-Hsiung Wang 2018-10-24 17:57:55 +08:00 committed by Julius Werner
parent ac4865c05f
commit a6db8f3cc3
4 changed files with 754 additions and 0 deletions

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@ -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

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@ -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,

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@ -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 <soc/addressmap.h>
#include <soc/pmic_wrap_common.h>
#include <types.h>
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__ */

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@ -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 <arch/io.h>
#include <soc/infracfg.h>
#include <soc/pll.h>
#include <soc/pmic_wrap.h>
#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;
}