From 22f8370def35d33a67189b9643114bf3e00e2c47 Mon Sep 17 00:00:00 2001 From: Hsin-Hsiung Wang Date: Fri, 29 May 2020 19:46:14 +0800 Subject: soc/mediatek/mt8192: add pmif driver MT8192 uses power management interface (PMIF) to access pmics by spmi and spi, so we add pmif driver to control pmics. BUG=b:155253454 BRANCH=none TEST=boot asurada correctly Signed-off-by: Hsin-Hsiung Wang Change-Id: I32fc28f72d9522133baa06f9d67c383f814d862c Reviewed-on: https://review.coreboot.org/c/coreboot/+/45398 Reviewed-by: Hung-Te Lin Tested-by: build bot (Jenkins) --- src/soc/mediatek/mt8192/Makefile.inc | 1 + src/soc/mediatek/mt8192/bootblock.c | 2 + src/soc/mediatek/mt8192/include/soc/addressmap.h | 5 +- src/soc/mediatek/mt8192/include/soc/pll.h | 6 +- src/soc/mediatek/mt8192/include/soc/pmif.h | 172 ++++++++++++ src/soc/mediatek/mt8192/include/soc/pmif_spi.h | 125 +++++++++ src/soc/mediatek/mt8192/include/soc/pmif_spmi.h | 99 +++++++ src/soc/mediatek/mt8192/include/soc/pmif_sw.h | 45 +++ src/soc/mediatek/mt8192/include/soc/spmi.h | 50 ++++ src/soc/mediatek/mt8192/pmif.c | 191 +++++++++++++ src/soc/mediatek/mt8192/pmif_clk.c | 172 ++++++++++++ src/soc/mediatek/mt8192/pmif_spi.c | 332 +++++++++++++++++++++++ src/soc/mediatek/mt8192/pmif_spmi.c | 242 +++++++++++++++++ 13 files changed, 1440 insertions(+), 2 deletions(-) create mode 100644 src/soc/mediatek/mt8192/include/soc/pmif.h create mode 100644 src/soc/mediatek/mt8192/include/soc/pmif_spi.h create mode 100644 src/soc/mediatek/mt8192/include/soc/pmif_spmi.h create mode 100644 src/soc/mediatek/mt8192/include/soc/pmif_sw.h create mode 100644 src/soc/mediatek/mt8192/include/soc/spmi.h create mode 100644 src/soc/mediatek/mt8192/pmif.c create mode 100644 src/soc/mediatek/mt8192/pmif_clk.c create mode 100644 src/soc/mediatek/mt8192/pmif_spi.c create mode 100644 src/soc/mediatek/mt8192/pmif_spmi.c (limited to 'src/soc') diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc index 13b5b21763..9c21b4da8a 100644 --- a/src/soc/mediatek/mt8192/Makefile.inc +++ b/src/soc/mediatek/mt8192/Makefile.inc @@ -9,6 +9,7 @@ bootblock-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c bootblock-y += ../common/timer.c bootblock-y += ../common/uart.c bootblock-y += ../common/wdt.c +bootblock-y += pmif.c pmif_clk.c pmif_spi.c pmif_spmi.c verstage-y += flash_controller.c verstage-y += ../common/gpio.c gpio.c diff --git a/src/soc/mediatek/mt8192/bootblock.c b/src/soc/mediatek/mt8192/bootblock.c index 8dffe5671b..0852f0ede8 100644 --- a/src/soc/mediatek/mt8192/bootblock.c +++ b/src/soc/mediatek/mt8192/bootblock.c @@ -3,6 +3,7 @@ #include #include #include +#include #include void bootblock_soc_init(void) @@ -10,4 +11,5 @@ void bootblock_soc_init(void) mtk_mmu_init(); mtk_wdt_init(); mt_pll_init(); + mtk_pmif_init(); } diff --git a/src/soc/mediatek/mt8192/include/soc/addressmap.h b/src/soc/mediatek/mt8192/include/soc/addressmap.h index e0cd5364a3..69d3157702 100644 --- a/src/soc/mediatek/mt8192/include/soc/addressmap.h +++ b/src/soc/mediatek/mt8192/include/soc/addressmap.h @@ -21,7 +21,10 @@ enum { GPT_BASE = IO_PHYS + 0x00008000, EINT_BASE = IO_PHYS + 0x0000B000, APMIXED_BASE = IO_PHYS + 0x0000C000, - PWRAP_BASE = IO_PHYS + 0x0000D000, + PMIF_SPI_BASE = IO_PHYS + 0x00026000, + PMIF_SPMI_BASE = IO_PHYS + 0x00027000, + PMICSPI_MST_BASE = IO_PHYS + 0x00028000, + SPMI_MST_BASE = IO_PHYS + 0x00029000, UART0_BASE = IO_PHYS + 0x01002000, SPI0_BASE = IO_PHYS + 0x0100A000, SPI1_BASE = IO_PHYS + 0x01010000, diff --git a/src/soc/mediatek/mt8192/include/soc/pll.h b/src/soc/mediatek/mt8192/include/soc/pll.h index d5a9cf9a3e..09c4c47118 100644 --- a/src/soc/mediatek/mt8192/include/soc/pll.h +++ b/src/soc/mediatek/mt8192/include/soc/pll.h @@ -178,7 +178,11 @@ struct mtk_apmixed_regs { u32 mfgpll_con2; u32 mfgpll_con3; u32 ap_pllgp1_con2; - u32 reserved2[33]; + u32 reserved2[13]; + u32 ulposc1_con0; + u32 ulposc1_con1; + u32 ulposc1_con2; + u32 reserved3[17]; u32 ap_pllgp2_con0; /* 0x0300 */ u32 ap_pllgp2_con1; u32 univpll_con0; diff --git a/src/soc/mediatek/mt8192/include/soc/pmif.h b/src/soc/mediatek/mt8192/include/soc/pmif.h new file mode 100644 index 0000000000..fe3def020a --- /dev/null +++ b/src/soc/mediatek/mt8192/include/soc/pmif.h @@ -0,0 +1,172 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __MT8192_SOC_PMIF_H__ +#define __MT8192_SOC_PMIF_H__ + +#include + +enum { + PMIF_CMD_REG_0, + PMIF_CMD_REG, + PMIF_CMD_EXT_REG, + PMIF_CMD_EXT_REG_LONG, +}; + +struct mtk_pmif_regs { + u32 init_done; + u32 reserved1[5]; + u32 inf_busy_sta; + u32 other_busy_sta_0; + u32 other_busy_sta_1; + u32 inf_en; + u32 other_inf_en; + u32 inf_cmd_per_0; + u32 inf_cmd_per_1; + u32 inf_cmd_per_2; + u32 inf_cmd_per_3; + u32 inf_max_bytecnt_per_0; + u32 inf_max_bytecnt_per_1; + u32 inf_max_bytecnt_per_2; + u32 inf_max_bytecnt_per_3; + u32 staupd_ctrl; + u32 reserved2[48]; + u32 int_gps_auxadc_cmd_addr; + u32 int_gps_auxadc_cmd; + u32 int_gps_auxadc_rdata_addr; + u32 reserved3[13]; + u32 arb_en; + u32 reserved4[34]; + u32 lat_cnter_en; + u32 lat_limit_loading; + u32 lat_limit_0; + u32 lat_limit_1; + u32 lat_limit_2; + u32 lat_limit_3; + u32 lat_limit_4; + u32 lat_limit_5; + u32 lat_limit_6; + u32 lat_limit_7; + u32 lat_limit_8; + u32 lat_limit_9; + u32 reserved5[99]; + u32 crc_ctrl; + u32 crc_sta; + u32 sig_mode; + u32 pmic_sig_addr; + u32 pmic_sig_val; + u32 reserved6[2]; + u32 cmdissue_en; + u32 reserved7[10]; + u32 timer_ctrl; + u32 timer_sta; + u32 sleep_protection_ctrl; + u32 reserved8[5]; + u32 spi_mode_ctrl; + u32 reserved9[2]; + u32 pmic_eint_sta_addr; + u32 reserved10[2]; + u32 irq_event_en_0; + u32 irq_flag_raw_0; + u32 irq_flag_0; + u32 irq_clr_0; + u32 reserved11[502]; + u32 swinf_0_acc; + u32 swinf_0_wdata_31_0; + u32 swinf_0_wdata_63_32; + u32 reserved12[2]; + u32 swinf_0_rdata_31_0; + u32 swinf_0_rdata_63_32; + u32 reserved13[2]; + u32 swinf_0_vld_clr; + u32 swinf_0_sta; + u32 reserved14[5]; + u32 swinf_1_acc; + u32 swinf_1_wdata_31_0; + u32 swinf_1_wdata_63_32; + u32 reserved15[2]; + u32 swinf_1_rdata_31_0; + u32 swinf_1_rdata_63_32; + u32 reserved16[2]; + u32 swinf_1_vld_clr; + u32 swinf_1_sta; + u32 reserved17[5]; + u32 swinf_2_acc; + u32 swinf_2_wdata_31_0; + u32 swinf_2_wdata_63_32; + u32 reserved18[2]; + u32 swinf_2_rdata_31_0; + u32 swinf_2_rdata_63_32; + u32 reserved19[2]; + u32 swinf_2_vld_clr; + u32 swinf_2_sta; + u32 reserved20[5]; + u32 swinf_3_acc; + u32 swinf_3_wdata_31_0; + u32 swinf_3_wdata_63_32; + u32 reserved21[2]; + u32 swinf_3_rdata_31_0; + u32 swinf_3_rdata_63_32; + u32 reserved22[2]; + u32 swinf_3_vld_clr; + u32 swinf_3_sta; + u32 reserved23[133]; +}; + +check_member(mtk_pmif_regs, inf_busy_sta, 0x18); +check_member(mtk_pmif_regs, int_gps_auxadc_cmd_addr, 0x110); +check_member(mtk_pmif_regs, arb_en, 0x0150); +check_member(mtk_pmif_regs, lat_cnter_en, 0x1DC); +check_member(mtk_pmif_regs, crc_ctrl, 0x398); +check_member(mtk_pmif_regs, cmdissue_en, 0x3B4); +check_member(mtk_pmif_regs, timer_ctrl, 0x3E0); +check_member(mtk_pmif_regs, spi_mode_ctrl, 0x400); +check_member(mtk_pmif_regs, pmic_eint_sta_addr, 0x40C); +check_member(mtk_pmif_regs, irq_event_en_0, 0x418); +check_member(mtk_pmif_regs, swinf_0_acc, 0xC00); + +#define PMIF_SPMI_AP_CHAN (PMIF_SPMI_BASE + 0xC80) +#define PMIF_SPI_AP_CHAN (PMIF_SPI_BASE + 0xC80) + +struct chan_regs { + u32 ch_send; + u32 wdata; + u32 reserved12[3]; + u32 rdata; + u32 reserved13[3]; + u32 ch_rdy; + u32 ch_sta; +}; + +struct pmif { + struct mtk_pmif_regs *mtk_pmif; + struct chan_regs *ch; + u32 swinf_no; + u32 mstid; + u32 pmifid; + void (*read)(struct pmif *arb, u32 slvid, u32 reg, u32 *data); + void (*write)(struct pmif *arb, u32 slvid, u32 reg, u32 data); + u32 (*read_field)(struct pmif *arb, u32 slvid, u32 reg, u32 mask, u32 shift); + void (*write_field)(struct pmif *arb, u32 slvid, u32 reg, u32 val, u32 mask, u32 shift); + int (*is_pmif_init_done)(struct pmif *arb); +}; + +enum { + PMIF_SPI, + PMIF_SPMI, +}; + +enum { + E_IO = 1, /* I/O error */ + E_BUSY, /* Device or resource busy */ + E_NODEV, /* No such device */ + E_INVAL, /* Invalid argument */ + E_OPNOTSUPP, /* Operation not supported on transport endpoint */ + E_TIMEOUT, /* Wait for idle time out */ + E_READ_TEST_FAIL, /* SPI read fail */ + E_SPI_INIT_RESET_SPI, /* Reset SPI fail */ + E_SPI_INIT_SIDLY, /* SPI edge calibration fail */ +}; + +extern struct pmif *get_pmif_controller(int inf, int mstid); +extern int mtk_pmif_init(void); +#endif /*__MT8192_SOC_PMIF_H__*/ diff --git a/src/soc/mediatek/mt8192/include/soc/pmif_spi.h b/src/soc/mediatek/mt8192/include/soc/pmif_spi.h new file mode 100644 index 0000000000..426aa3bf28 --- /dev/null +++ b/src/soc/mediatek/mt8192/include/soc/pmif_spi.h @@ -0,0 +1,125 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SOC_MEDIATEK_MT8192_PMIC_WRAP_H__ +#define __SOC_MEDIATEK_MT8192_PMIC_WRAP_H__ + +#include +#include + +struct mt8192_pmicspi_mst_regs { + u32 reserved1[4]; + u32 other_busy_sta_0; + u32 wrap_en; + u32 reserved2[2]; + u32 man_en; + u32 man_acc; + u32 reserved3[3]; + u32 mux_sel; + u32 reserved4[3]; + u32 dio_en; + u32 rddmy; + u32 cslext_write; + u32 cslext_read; + u32 cshext_write; + u32 cshext_read; + u32 ext_ck_write; + u32 ext_ck_read; + u32 si_sampling_ctrl; +}; + +check_member(mt8192_pmicspi_mst_regs, other_busy_sta_0, 0x10); +check_member(mt8192_pmicspi_mst_regs, man_en, 0x20); +check_member(mt8192_pmicspi_mst_regs, mux_sel, 0x34); +check_member(mt8192_pmicspi_mst_regs, dio_en, 0x44); + +static struct mt8192_pmicspi_mst_regs * const mtk_pmicspi_mst = (void *)PMICSPI_MST_BASE; + +struct mt8192_iocfg_lm_regs { + u32 reserved[4]; + u32 drv_cfg1; +}; +check_member(mt8192_iocfg_lm_regs, drv_cfg1, 0x10); + +static struct mt8192_iocfg_lm_regs * const mtk_iocfg_lm = (void *)IOCFG_LM_BASE; + +/* PMIC registers */ +enum { + PMIC_BASE = 0x0000, + PMIC_SMT_CON1 = PMIC_BASE + 0x0032, + PMIC_DRV_CON1 = PMIC_BASE + 0x003a, + PMIC_FILTER_CON0 = PMIC_BASE + 0x0042, + PMIC_GPIO_PULLEN0_CLR = PMIC_BASE + 0x0098, + PMIC_RG_SPI_CON0 = PMIC_BASE + 0x0408, + 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 + 0x0424, + PMIC_RG_SPI_CON2 = PMIC_BASE + 0x0426, + PMIC_SPISLV_KEY = PMIC_BASE + 0x044a, + PMIC_INT_STA = PMIC_BASE + 0x0452, + PMIC_AUXADC_ADC7 = PMIC_BASE + 0x1096, + PMIC_AUXADC_ADC10 = PMIC_BASE + 0x109c, + PMIC_AUXADC_RQST0 = PMIC_BASE + 0x1108, +}; + +#define PMIF_SPI_HW_INF 0x307F +#define PMIF_SPI_MD BIT(8) +#define PMIF_SPI_AP_SECURE BIT(9) +#define PMIF_SPI_AP BIT(10) +#define PMIF_SPI_STAUPD BIT(14) +#define PMIF_SPI_TSX_HW BIT(19) +#define PMIF_SPI_DCXO_HW BIT(20) + +#define DEFAULT_SLVID 0 + +#define PMIF_CMD_STA BIT(2) +#define SPIMST_STA BIT(9) + +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 = 0x1, + SLV_IO_4_MA = 0x8, +}; + +enum { + SPI_CLK_SHIFT = 0, + SPI_CSN_SHIFT = 4, + SPI_MOSI_SHIFT = 8, + SPI_MISO_SHIFT = 12, + SPI_DRIVING = SLV_IO_4_MA << SPI_CLK_SHIFT | SLV_IO_4_MA << SPI_CSN_SHIFT | + SLV_IO_4_MA << SPI_MOSI_SHIFT | SLV_IO_4_MA << SPI_MISO_SHIFT, +}; + +enum { + OP_WR = 0x1, + OP_CSH = 0x0, + OP_CSL = 0x1, + OP_OUTS = 0x8, +}; + +enum { + DEFAULT_VALUE_READ_TEST = 0x5aa5, + WRITE_TEST_VALUE = 0xa55a, +}; + +enum { + DUMMY_READ_CYCLES = 0x8, +}; + +enum { + E_CLK_EDGE = 1, + E_CLK_LAST_SETTING, +}; +extern int pmif_spi_init(struct pmif *arb); +#endif /* __SOC_MEDIATEK_MT8192_PMIC_WRAP_H__ */ diff --git a/src/soc/mediatek/mt8192/include/soc/pmif_spmi.h b/src/soc/mediatek/mt8192/include/soc/pmif_spmi.h new file mode 100644 index 0000000000..d89a072123 --- /dev/null +++ b/src/soc/mediatek/mt8192/include/soc/pmif_spmi.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __PMIF_SPMI_H__ +#define __PMIF_SPMI_H__ + +#include + +#define DEFAULT_VALUE_READ_TEST (0x5a) +#define DEFAULT_VALUE_WRITE_TEST (0xa5) + +/* indicate which number SW channel start, by project */ +#define PMIF_SPMI_SW_CHAN BIT(6) +#define PMIF_SPMI_INF 0x2F7 + +struct mtk_rgu_regs { + u32 reserved[36]; + u32 wdt_swsysrst2; +}; +check_member(mtk_rgu_regs, wdt_swsysrst2, 0x90); + +struct mtk_iocfg_bm_regs { + u32 reserved[8]; + u32 drv_cfg2; +}; +check_member(mtk_iocfg_bm_regs, drv_cfg2, 0x20); + +struct mtk_spm_regs { + u32 poweron_config_en; + u32 reserved[263]; + u32 ulposc_con; +}; +check_member(mtk_spm_regs, ulposc_con, 0x420); + +struct mtk_spmi_mst_reg { + u32 op_st_ctrl; + u32 grp_id_en; + u32 op_st_sta; + u32 mst_sampl; + u32 mst_req_en; + u32 reserved1[11]; + u32 rec_ctrl; + u32 rec0; + u32 rec1; + u32 rec2; + u32 rec3; + u32 rec4; + u32 reserved2[41]; + u32 mst_dbg; +}; + +check_member(mtk_spmi_mst_reg, rec_ctrl, 0x40); +check_member(mtk_spmi_mst_reg, mst_dbg, 0xfc); + +#define mtk_rug ((struct mtk_rgu_regs *)RGU_BASE) +#define mtk_iocfg_bm ((struct mtk_iocfg_bm_regs *)IOCFG_BM_BASE) +#define mtk_spm ((struct mtk_spm_regs *)SPM_BASE) +#define mtk_spmi_mst ((struct mtk_spmi_mst_reg *)SPMI_MST_BASE) + +struct cali { + unsigned int dly; + unsigned int pol; +}; + +enum { + SPMI_CK_NO_DLY = 0, + SPMI_CK_DLY_1T, +}; + +enum { + SPMI_CK_POL_NEG = 0, + SPMI_CK_POL_POS, +}; + +enum spmi_regs { + SPMI_OP_ST_CTRL, + SPMI_GRP_ID_EN, + SPMI_OP_ST_STA, + SPMI_MST_SAMPL, + SPMI_MST_REQ_EN, + SPMI_REC_CTRL, + SPMI_REC0, + SPMI_REC1, + SPMI_REC2, + SPMI_REC3, + SPMI_REC4, + SPMI_MST_DBG +}; + +/* MT6315 registers */ +enum { + MT6315_BASE = 0x0, + MT6315_READ_TEST = MT6315_BASE + 0x9, + MT6315_READ_TEST_1 = MT6315_BASE + 0xb, +}; + +#define MT6315_DEFAULT_VALUE_READ 0x15 + +extern int pmif_spmi_init(struct pmif *arb); +#endif /*__PMIF_SPMI_H__*/ diff --git a/src/soc/mediatek/mt8192/include/soc/pmif_sw.h b/src/soc/mediatek/mt8192/include/soc/pmif_sw.h new file mode 100644 index 0000000000..fb4cbc967e --- /dev/null +++ b/src/soc/mediatek/mt8192/include/soc/pmif_sw.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __PMIF_SW_H__ +#define __PMIF_SW_H__ + +/* Read/write byte limitation, by project */ +/* hw bytecnt indicate when we set 0, it can send 1 byte; + * set 1, it can send 2 byte. + */ +#define PMIF_BYTECNT_MAX 1 + +/* macro for SWINF_FSM */ +#define SWINF_FSM_IDLE 0x00 +#define SWINF_FSM_REQ 0x02 +#define SWINF_FSM_WFDLE 0x04 +#define SWINF_FSM_WFVLDCLR 0x06 +#define SWINF_INIT_DONE 0x01 + +#define FREQ_METER_ABIST_AD_OSC_CK 37 +#define GET_SWINF_0_FSM(x) (((x) >> 1) & 0x7) + +struct pmif_mpu { + unsigned int rgn_slvid; + unsigned short rgn_s_addr; + unsigned short rgn_e_addr; + unsigned int rgn_domain_per; +}; + +enum { + PMIF_READ_US = 1000, + PMIF_WAIT_IDLE_US = 1000, +}; + +enum { + FREQ_260MHZ = 260, +}; + +/* calibation tolerance rate, unit: 0.1% */ +enum { + CAL_TOL_RATE = 40, + CAL_MAX_VAL = 0x7F, +}; + +extern int pmif_clk_init(void); +#endif /*__PMIF_SW_H__*/ diff --git a/src/soc/mediatek/mt8192/include/soc/spmi.h b/src/soc/mediatek/mt8192/include/soc/spmi.h new file mode 100644 index 0000000000..0d44198f82 --- /dev/null +++ b/src/soc/mediatek/mt8192/include/soc/spmi.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __SPMI_H__ +#define __SPMI_H__ + +enum spmi_master { + SPMI_MASTER_0, + SPMI_MASTER_1, + SPMI_MASTER_2, + SPMI_MASTER_3, +}; + +enum spmi_slave { + SPMI_SLAVE_0, + SPMI_SLAVE_1, + SPMI_SLAVE_2, + SPMI_SLAVE_3, + SPMI_SLAVE_4, + SPMI_SLAVE_5, + SPMI_SLAVE_6, + SPMI_SLAVE_7, + SPMI_SLAVE_8, + SPMI_SLAVE_9, + SPMI_SLAVE_10, + SPMI_SLAVE_11, + SPMI_SLAVE_12, + SPMI_SLAVE_13, + SPMI_SLAVE_14, + SPMI_SLAVE_15, + SPMI_SLAVE_MAX, +}; + +enum slv_type { + BUCK_CPU, + BUCK_GPU, + SLV_TYPE_MAX, +}; + +enum slv_type_id { + BUCK_CPU_ID, + BUCK_GPU_ID, + SLV_TYPE_ID_MAX, +}; + +struct spmi_device { + u32 slvid; + enum slv_type type; + enum slv_type_id type_id; +}; +#endif /*__SPMI_H__*/ diff --git a/src/soc/mediatek/mt8192/pmif.c b/src/soc/mediatek/mt8192/pmif.c new file mode 100644 index 0000000000..f6b1525915 --- /dev/null +++ b/src/soc/mediatek/mt8192/pmif.c @@ -0,0 +1,191 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int pmif_check_swinf(struct pmif *arb, long timeout_us, u32 expected_status) +{ + u32 reg_rdata; + struct stopwatch sw; + + stopwatch_init_usecs_expire(&sw, timeout_us); + do { + reg_rdata = read32(&arb->ch->ch_sta); + if (stopwatch_expired(&sw)) + return E_TIMEOUT; + } while (GET_SWINF_0_FSM(reg_rdata) != expected_status); + + return 0; +} + +static void pmif_send_cmd(struct pmif *arb, int write, u32 opc, u32 slvid, + u32 addr, u32 *rdata, u32 wdata, u32 len) +{ + int ret; + u32 data, bc = len - 1; + + /* Wait for Software Interface FSM state to be IDLE. */ + ret = pmif_check_swinf(arb, PMIF_WAIT_IDLE_US, SWINF_FSM_IDLE); + if (ret) { + printk(BIOS_ERR, "[%s] idle timeout\n", __func__); + return; + } + + /* Set the write data */ + if (write) + write32(&arb->ch->wdata, wdata); + + /* Send the command. */ + write32(&arb->ch->ch_send, + (opc << 30) | (write << 29) | (slvid << 24) | (bc << 16) | addr); + + if (!write) { + /* + * Wait for Software Interface FSM state to be WFVLDCLR, + * read the data and clear the valid flag. + */ + ret = pmif_check_swinf(arb, PMIF_READ_US, SWINF_FSM_WFVLDCLR); + if (ret) { + printk(BIOS_ERR, "[%s] read timeout\n", __func__); + return; + } + + data = read32(&arb->ch->rdata); + *rdata = data; + write32(&arb->ch->ch_rdy, 0x1); + } +} + +static void pmif_spmi_read(struct pmif *arb, u32 slvid, u32 reg, u32 *data) +{ + *data = 0; + pmif_send_cmd(arb, 0, PMIF_CMD_EXT_REG_LONG, slvid, reg, data, 0, 1); +} + +static void pmif_spmi_write(struct pmif *arb, u32 slvid, u32 reg, u32 data) +{ + pmif_send_cmd(arb, 1, PMIF_CMD_EXT_REG_LONG, slvid, reg, NULL, data, 1); +} + +static u32 pmif_spmi_read_field(struct pmif *arb, u32 slvid, u32 reg, u32 mask, u32 shift) +{ + u32 data; + + pmif_spmi_read(arb, slvid, reg, &data); + data &= (mask << shift); + data >>= shift; + + return data; +} + +static void pmif_spmi_write_field(struct pmif *arb, u32 slvid, u32 reg, + u32 val, u32 mask, u32 shift) +{ + u32 old, new; + + pmif_spmi_read(arb, slvid, reg, &old); + new = old & ~(mask << shift); + new |= (val << shift); + pmif_spmi_write(arb, slvid, reg, new); +} + +static void pmif_spi_read(struct pmif *arb, u32 slvid, u32 reg, u32 *data) +{ + *data = 0; + pmif_send_cmd(arb, 0, PMIF_CMD_REG_0, slvid, reg, data, 0, 1); +} + +static void pmif_spi_write(struct pmif *arb, u32 slvid, u32 reg, u32 data) +{ + pmif_send_cmd(arb, 1, PMIF_CMD_REG_0, slvid, reg, NULL, data, 1); +} + +static u32 pmif_spi_read_field(struct pmif *arb, u32 slvid, u32 reg, u32 mask, u32 shift) +{ + u32 data; + + pmif_spi_read(arb, slvid, reg, &data); + data &= (mask << shift); + data >>= shift; + + return data; +} + +static void pmif_spi_write_field(struct pmif *arb, u32 slvid, u32 reg, + u32 val, u32 mask, u32 shift) +{ + u32 old, new; + + pmif_spi_read(arb, slvid, reg, &old); + new = old & ~(mask << shift); + new |= (val << shift); + pmif_spi_write(arb, slvid, reg, new); +} + +static int is_pmif_init_done(struct pmif *arb) +{ + if (read32(&arb->mtk_pmif->init_done) & 0x1) + return 0; + + return -E_NODEV; +} + +static const struct pmif pmif_spmi_arb[] = { + { + .mtk_pmif = (struct mtk_pmif_regs *)PMIF_SPMI_BASE, + .ch = (struct chan_regs *)PMIF_SPMI_AP_CHAN, + .mstid = SPMI_MASTER_0, + .pmifid = PMIF_SPMI, + .write = pmif_spmi_write, + .read = pmif_spmi_read, + .write_field = pmif_spmi_write_field, + .read_field = pmif_spmi_read_field, + .is_pmif_init_done = is_pmif_init_done, + }, +}; + +static const struct pmif pmif_spi_arb[] = { + { + .mtk_pmif = (struct mtk_pmif_regs *)PMIF_SPI_BASE, + .ch = (struct chan_regs *)PMIF_SPI_AP_CHAN, + .pmifid = PMIF_SPI, + .write = pmif_spi_write, + .read = pmif_spi_read, + .write_field = pmif_spi_write_field, + .read_field = pmif_spi_read_field, + .is_pmif_init_done = is_pmif_init_done, + }, +}; + +struct pmif *get_pmif_controller(int inf, int mstid) +{ + if (inf == PMIF_SPMI && mstid < ARRAY_SIZE(pmif_spmi_arb)) + return (struct pmif *)&pmif_spmi_arb[mstid]; + else if (inf == PMIF_SPI) + return (struct pmif *)&pmif_spi_arb[0]; + + die("[%s] Failed to get pmif controller: inf = %d, mstid = %d\n", __func__, inf, mstid); + return NULL; +} + +int mtk_pmif_init(void) +{ + int ret; + + ret = pmif_clk_init(); + if (!ret) + ret = pmif_spmi_init(get_pmif_controller(PMIF_SPMI, SPMI_MASTER_0)); + if (!ret) + ret = pmif_spi_init(get_pmif_controller(PMIF_SPI, 0)); + + return ret; +} diff --git a/src/soc/mediatek/mt8192/pmif_clk.c b/src/soc/mediatek/mt8192/pmif_clk.c new file mode 100644 index 0000000000..4e68f3e7b0 --- /dev/null +++ b/src/soc/mediatek/mt8192/pmif_clk.c @@ -0,0 +1,172 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* APMIXED, ULPOSC1_CON0 */ +DEFINE_BITFIELD(OSC1_CALI, 6, 0) +DEFINE_BITFIELD(OSC1_IBAND, 13, 7) +DEFINE_BITFIELD(OSC1_FBAND, 17, 14) +DEFINE_BITFIELD(OSC1_DIV, 23, 18) +DEFINE_BIT(OSC1_CP_EN, 24) + +/* APMIXED, ULPOSC1_CON1 */ +DEFINE_BITFIELD(OSC1_32KCALI, 7, 0) +DEFINE_BITFIELD(OSC1_RSV1, 15, 8) +DEFINE_BITFIELD(OSC1_RSV2, 23, 16) +DEFINE_BITFIELD(OSC1_MOD, 25, 24) +DEFINE_BIT(OSC1_DIV2_EN, 26) + +/* APMIXED, ULPOSC1_CON2 */ +DEFINE_BITFIELD(OSC1_BIAS, 7, 0) + +/* SPM, POWERON_CONFIG_EN */ +DEFINE_BIT(BCLK_CG_EN, 0) +DEFINE_BITFIELD(PROJECT_CODE, 31, 16) + +/* SPM, ULPOSC_CON */ +DEFINE_BIT(ULPOSC_EN, 0) +DEFINE_BIT(ULPOSC_CG_EN, 2) + +/* INFRA, MODULE_SW_CG */ +DEFINE_BIT(PMIC_CG_TMR, 0) +DEFINE_BIT(PMIC_CG_AP, 1) +DEFINE_BIT(PMIC_CG_MD, 2) +DEFINE_BIT(PMIC_CG_CONN, 3) + +/* INFRA, INFRA_GLOBALCON_RST2 */ +DEFINE_BIT(PMIC_WRAP_SWRST, 0) +DEFINE_BIT(PMICSPMI_SWRST, 14) + +/* INFRA, PMICW_CLOCK_CTRL */ +DEFINE_BITFIELD(PMIC_SYSCK_26M_SEL, 3, 0) + +/* TOPCKGEN, CLK_CFG_8 */ +DEFINE_BITFIELD(CLK_PWRAP_ULPOSC_SET, 10, 8) +DEFINE_BIT(CLK_PWRAP_ULPOSC_INV, 12) +DEFINE_BIT(PDN_PWRAP_ULPOSC, 15) + +/* TOPCKGEN, CLK_CFG_UPDATE1 */ +DEFINE_BIT(CLK_CFG_UPDATE1, 2) + +static void pmif_ulposc_config(void) +{ + /* ULPOSC1_CON0 */ + SET32_BITFIELDS(&mtk_apmixed->ulposc1_con0, OSC1_CP_EN, 0, OSC1_DIV, 0xe, + OSC1_FBAND, 0x2, OSC1_IBAND, 0x52, OSC1_CALI, 0x40); + + /* ULPOSC1_CON1 */ + SET32_BITFIELDS(&mtk_apmixed->ulposc1_con1, OSC1_DIV2_EN, 0, OSC1_MOD, 0, + OSC1_RSV2, 0, OSC1_RSV1, 0x29, OSC1_32KCALI, 0); + + /* ULPOSC1_CON2 */ + SET32_BITFIELDS(&mtk_apmixed->ulposc1_con2, OSC1_BIAS, 0x40); +} + +static u32 pmif_get_ulposc_freq_mhz(u32 cali_val) +{ + u32 result = 0; + + /* set calibration value */ + SET32_BITFIELDS(&mtk_apmixed->ulposc1_con0, OSC1_CALI, cali_val); + udelay(50); + result = mt_fmeter_get_freq_khz(FMETER_ABIST, FREQ_METER_ABIST_AD_OSC_CK); + + return result / 1000; +} + +static int pmif_ulposc_cali(void) +{ + u32 current_val = 0, min = 0, max = CAL_MAX_VAL, middle; + int ret = 0, diff_by_min, diff_by_max, cal_result; + + do { + middle = (min + max) / 2; + if (middle == min) + break; + + current_val = pmif_get_ulposc_freq_mhz(middle); + if (current_val > FREQ_260MHZ) + max = middle; + else + min = middle; + } while (min <= max); + + diff_by_min = pmif_get_ulposc_freq_mhz(min) - FREQ_260MHZ; + diff_by_min = ABS(diff_by_min); + + diff_by_max = pmif_get_ulposc_freq_mhz(max) - FREQ_260MHZ; + diff_by_max = ABS(diff_by_max); + + if (diff_by_min < diff_by_max) { + cal_result = min; + current_val = pmif_get_ulposc_freq_mhz(min); + } else { + cal_result = max; + current_val = pmif_get_ulposc_freq_mhz(max); + } + + /* check if calibrated value is in the range of target value +- 15% */ + if (current_val < (FREQ_260MHZ * (1000 - CAL_TOL_RATE) / 1000) || + current_val > (FREQ_260MHZ * (1000 + CAL_TOL_RATE) / 1000)) { + printk(BIOS_ERR, "[%s] calibration fail: %dM\n", __func__, current_val); + ret = 1; + } + + return ret; +} + +static int pmif_init_ulposc(void) +{ + /* calibrate ULPOSC1 */ + pmif_ulposc_config(); + + /* enable spm swinf */ + if (!READ32_BITFIELD(&mtk_spm->poweron_config_en, BCLK_CG_EN)) + SET32_BITFIELDS(&mtk_spm->poweron_config_en, BCLK_CG_EN, 1, + PROJECT_CODE, 0xb16); + + /* turn on ulposc */ + SET32_BITFIELDS(&mtk_spm->ulposc_con, ULPOSC_EN, 1); + udelay(100); + SET32_BITFIELDS(&mtk_spm->ulposc_con, ULPOSC_CG_EN, 1); + + return pmif_ulposc_cali(); +} + +int pmif_clk_init(void) +{ + if (pmif_init_ulposc()) + return E_NODEV; + + /* turn off pmic_cg_tmr, cg_ap, cg_md, cg_conn clock */ + SET32_BITFIELDS(&mt8192_infracfg->module_sw_cg_0_set, PMIC_CG_TMR, 1, PMIC_CG_AP, 1, + PMIC_CG_MD, 1, PMIC_CG_CONN, 1); + + SET32_BITFIELDS(&mtk_topckgen->clk_cfg_8, PDN_PWRAP_ULPOSC, 0, CLK_PWRAP_ULPOSC_INV, + 0, CLK_PWRAP_ULPOSC_SET, 0); + SET32_BITFIELDS(&mtk_topckgen->clk_cfg_update1, CLK_CFG_UPDATE1, 1); + + /* use ULPOSC1 clock */ + SET32_BITFIELDS(&mt8192_infracfg->pmicw_clock_ctrl_clr, PMIC_SYSCK_26M_SEL, 0xf); + + /* toggle SPI/SPMI sw reset */ + SET32_BITFIELDS(&mt8192_infracfg->infra_globalcon_rst2_set, PMICSPMI_SWRST, 1, + PMIC_WRAP_SWRST, 1); + SET32_BITFIELDS(&mt8192_infracfg->infra_globalcon_rst2_clr, PMICSPMI_SWRST, 1, + PMIC_WRAP_SWRST, 1); + + /* turn on pmic_cg_tmr, cg_ap, cg_md, cg_conn clock */ + SET32_BITFIELDS(&mt8192_infracfg->module_sw_cg_0_clr, PMIC_CG_TMR, 1, PMIC_CG_AP, 1, + PMIC_CG_MD, 1, PMIC_CG_CONN, 1); + + return 0; +} diff --git a/src/soc/mediatek/mt8192/pmif_spi.c b/src/soc/mediatek/mt8192/pmif_spi.c new file mode 100644 index 0000000000..72620041bd --- /dev/null +++ b/src/soc/mediatek/mt8192/pmif_spi.c @@ -0,0 +1,332 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* PMIF, SPI_MODE_CTRL */ +DEFINE_BIT(SPI_MODE_CTRL_VLD_SRCLK_EN_CTRL, 5) +DEFINE_BIT(SPI_MODE_CTRL_PMIF_RDY, 9) +DEFINE_BIT(SPI_MODE_CTRL_SRCLK_EN, 10) +DEFINE_BIT(SPI_MODE_CTRL_SRVOL_EN, 11) + +/* PMIF, SLEEP_PROTECTION_CTRL */ +DEFINE_BITFIELD(SPM_SLEEP_REQ_SEL, 1, 0) +DEFINE_BITFIELD(SCP_SLEEP_REQ_SEL, 10, 9) + +/* PMIF, OTHER_INF_EN */ +DEFINE_BITFIELD(INTGPSADCINF_EN, 5, 4) + +/* PMIF, STAUPD_CTRL */ +DEFINE_BITFIELD(STAUPD_CTRL_PRD, 3, 0) +DEFINE_BIT(STAUPD_CTRL_PMIC0_SIG_STA, 4) +DEFINE_BIT(STAUPD_CTRL_PMIC0_EINT_STA, 6) + +/* SPIMST, Manual_Mode_Access */ +DEFINE_BITFIELD(MAN_ACC_SPI_OP, 12, 8) +DEFINE_BIT(MAN_ACC_SPI_RW, 13) + +/* IOCFG_LM, PWRAP_SPI0_DRIVING */ +DEFINE_BITFIELD(PWRAP_SPI0_DRIVING, 2, 0) + +static void pmif_spi_config(struct pmif *arb) +{ + /* Set srclk_en always valid regardless of ulposc_sel_for_scp */ + SET32_BITFIELDS(&arb->mtk_pmif->spi_mode_ctrl, SPI_MODE_CTRL_VLD_SRCLK_EN_CTRL, 0); + + /* Set SPI mode controlled by srclk_en and srvol_en instead of pmif_rdy */ + SET32_BITFIELDS(&arb->mtk_pmif->spi_mode_ctrl, + SPI_MODE_CTRL_SRCLK_EN, 1, + SPI_MODE_CTRL_SRVOL_EN, 1, + SPI_MODE_CTRL_PMIF_RDY, 0); + + SET32_BITFIELDS(&arb->mtk_pmif->sleep_protection_ctrl, SPM_SLEEP_REQ_SEL, 0, + SCP_SLEEP_REQ_SEL, 0); + + /* Enable SWINF for AP */ + write32(&arb->mtk_pmif->inf_en, PMIF_SPI_AP); + + /* Enable arbitration for SWINF for AP */ + write32(&arb->mtk_pmif->arb_en, PMIF_SPI_AP); + + /* Enable PMIF_SPI Command Issue */ + write32(&arb->mtk_pmif->cmdissue_en, 1); +} + +static int check_idle(void *addr, u32 expected) +{ + u32 reg_rdata; + struct stopwatch sw; + + stopwatch_init_usecs_expire(&sw, PMIF_WAIT_IDLE_US); + do { + reg_rdata = read32(addr); + if (stopwatch_expired(&sw)) + return E_TIMEOUT; + } while ((reg_rdata & expected) != 0); + + return 0; +} + +static int reset_spislv(void) +{ + u32 pmicspi_mst_dio_en_backup; + + write32(&mtk_pmicspi_mst->wrap_en, 0); + write32(&mtk_pmicspi_mst->mux_sel, 1); + write32(&mtk_pmicspi_mst->man_en, 1); + pmicspi_mst_dio_en_backup = read32(&mtk_pmicspi_mst->dio_en); + write32(&mtk_pmicspi_mst->dio_en, 0); + + SET32_BITFIELDS(&mtk_pmicspi_mst->man_acc, MAN_ACC_SPI_RW, OP_WR, + MAN_ACC_SPI_OP, OP_CSL); + /* Reset counter */ + SET32_BITFIELDS(&mtk_pmicspi_mst->man_acc, MAN_ACC_SPI_RW, OP_WR, + MAN_ACC_SPI_OP, OP_OUTS); + SET32_BITFIELDS(&mtk_pmicspi_mst->man_acc, MAN_ACC_SPI_RW, OP_WR, + MAN_ACC_SPI_OP, OP_CSH); + /* + * In order to pull CSN signal to PMIC, + * PMIC will count it then reset spi slave + */ + SET32_BITFIELDS(&mtk_pmicspi_mst->man_acc, MAN_ACC_SPI_RW, OP_WR, + MAN_ACC_SPI_OP, OP_OUTS); + SET32_BITFIELDS(&mtk_pmicspi_mst->man_acc, MAN_ACC_SPI_RW, OP_WR, + MAN_ACC_SPI_OP, OP_OUTS); + SET32_BITFIELDS(&mtk_pmicspi_mst->man_acc, MAN_ACC_SPI_RW, OP_WR, + MAN_ACC_SPI_OP, OP_OUTS); + SET32_BITFIELDS(&mtk_pmicspi_mst->man_acc, MAN_ACC_SPI_RW, OP_WR, + MAN_ACC_SPI_OP, OP_OUTS); + + /* Wait for PMIC SPI Master to be idle */ + if (check_idle(&mtk_pmicspi_mst->other_busy_sta_0, SPIMST_STA)) { + printk(BIOS_ERR, "[%s] spi master busy, timeout\n", __func__); + return E_TIMEOUT; + } + + write32(&mtk_pmicspi_mst->man_en, 0); + write32(&mtk_pmicspi_mst->mux_sel, 0); + write32(&mtk_pmicspi_mst->wrap_en, 1); + write32(&mtk_pmicspi_mst->dio_en, pmicspi_mst_dio_en_backup); + + return 0; +} + +static void init_reg_clock(struct pmif *arb) +{ + /* Set SoC SPI IO driving strength to 4 mA */ + SET32_BITFIELDS(&mtk_iocfg_lm->drv_cfg1, PWRAP_SPI0_DRIVING, IO_4_MA); + + /* Configure SPI protocol */ + write32(&mtk_pmicspi_mst->ext_ck_write, 1); + write32(&mtk_pmicspi_mst->ext_ck_read, 0); + write32(&mtk_pmicspi_mst->cshext_write, 0); + write32(&mtk_pmicspi_mst->cshext_read, 0); + write32(&mtk_pmicspi_mst->cslext_write, 0); + write32(&mtk_pmicspi_mst->cslext_read, 0x100); + + /* Set Read Dummy Cycle Number (Slave Clock is 18MHz) */ + arb->write(arb, DEFAULT_SLVID, PMIC_DEW_RDDMY_NO, DUMMY_READ_CYCLES); + write32(&mtk_pmicspi_mst->rddmy, DUMMY_READ_CYCLES); + + /* Enable DIO mode */ + arb->write(arb, DEFAULT_SLVID, PMIC_DEW_DIO_EN, 0x1); + + /* Wait for completion of sending the commands */ + if (check_idle(&arb->mtk_pmif->inf_busy_sta, PMIF_SPI_AP)) { + printk(BIOS_ERR, "[%s] pmif channel busy, timeout\n", __func__); + return; + } + + if (check_idle(&arb->mtk_pmif->other_busy_sta_0, PMIF_CMD_STA)) { + printk(BIOS_ERR, "[%s] pmif cmd busy, timeout\n", __func__); + return; + } + + if (check_idle(&mtk_pmicspi_mst->other_busy_sta_0, SPIMST_STA)) { + printk(BIOS_ERR, "[%s] spi master busy, timeout\n", __func__); + return; + } + + write32(&mtk_pmicspi_mst->dio_en, 1); +} + +static void init_spislv(struct pmif *arb) +{ + /* Turn on SPI IO filter function */ + arb->write(arb, DEFAULT_SLVID, PMIC_FILTER_CON0, SPI_FILTER); + /* Turn on SPI IO SMT function to improve noise immunity */ + arb->write(arb, DEFAULT_SLVID, PMIC_SMT_CON1, SPI_SMT); + /* Turn off SPI IO pull function for power saving */ + arb->write(arb, DEFAULT_SLVID, PMIC_GPIO_PULLEN0_CLR, SPI_PULL_DISABLE); + /* Enable SPI access in SODI-3.0 and Suspend modes */ + arb->write(arb, DEFAULT_SLVID, PMIC_RG_SPI_CON0, 0x2); + /* Set SPI IO driving strength to 4 mA */ + arb->write(arb, DEFAULT_SLVID, PMIC_DRV_CON1, SPI_DRIVING); +} + +static int init_sistrobe(struct pmif *arb) +{ + u32 rdata = 0; + int si_sample_ctrl; + /* Random data for testing */ + const u32 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_pmicspi_mst->si_sampling_ctrl, si_sample_ctrl << 5); + + arb->read(arb, DEFAULT_SLVID, 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++) { + arb->write(arb, DEFAULT_SLVID, PMIC_RG_SPI_CON2, si_dly); + + int start_boundary_found = 0; + for (int i = 0; i < ARRAY_SIZE(test_data); i++) { + arb->write(arb, DEFAULT_SLVID, PMIC_DEW_WRITE_TEST, test_data[i]); + arb->read(arb, DEFAULT_SLVID, 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_pmicspi_mst->si_sampling_ctrl, ++si_sample_ctrl << 5); + + /* Read Test */ + arb->read(arb, DEFAULT_SLVID, PMIC_DEW_READ_TEST, &rdata); + if (rdata != DEFAULT_VALUE_READ_TEST) { + printk(BIOS_ERR, "[%s] Failed for read test, data = %#x.\n", + __func__, rdata); + return E_READ_TEST_FAIL; + } + + return 0; +} + +static void init_staupd(struct pmif *arb) +{ + /* Unlock SPI Slave registers */ + arb->write(arb, DEFAULT_SLVID, PMIC_SPISLV_KEY, 0xbade); + + /* Enable CRC of PMIC 0 */ + arb->write(arb, DEFAULT_SLVID, PMIC_DEW_CRC_EN, 0x1); + + /* Wait for completion of sending the commands */ + if (check_idle(&arb->mtk_pmif->inf_busy_sta, PMIF_SPI_AP)) { + printk(BIOS_ERR, "[%s] pmif channel busy, timeout\n", __func__); + return; + } + + if (check_idle(&arb->mtk_pmif->other_busy_sta_0, PMIF_CMD_STA)) { + printk(BIOS_ERR, "[%s] pmif cmd busy, timeout\n", __func__); + return; + } + + if (check_idle(&mtk_pmicspi_mst->other_busy_sta_0, SPIMST_STA)) { + printk(BIOS_ERR, "[%s] spi master busy, timeout\n", __func__); + return; + } + + /* Configure CRC of PMIC Interface */ + write32(&arb->mtk_pmif->crc_ctrl, 0x1); + write32(&arb->mtk_pmif->sig_mode, 0x0); + + /* Lock SPI Slave registers */ + arb->write(arb, DEFAULT_SLVID, PMIC_SPISLV_KEY, 0x0); + + /* Set up PMIC Siganature */ + write32(&arb->mtk_pmif->pmic_sig_addr, PMIC_DEW_CRC_VAL); + + /* Set up PMIC EINT */ + write32(&arb->mtk_pmif->pmic_eint_sta_addr, PMIC_INT_STA); + + SET32_BITFIELDS(&arb->mtk_pmif->staupd_ctrl, + STAUPD_CTRL_PRD, 5, + STAUPD_CTRL_PMIC0_SIG_STA, 1, + STAUPD_CTRL_PMIC0_EINT_STA, 1); +} + +int pmif_spi_init(struct pmif *arb) +{ + pmif_spi_config(arb); + + /* Reset spislv */ + if (reset_spislv()) + return E_SPI_INIT_RESET_SPI; + + /* Enable WRAP */ + write32(&mtk_pmicspi_mst->wrap_en, 0x1); + + /* SPI Waveform Configuration */ + init_reg_clock(arb); + + /* SPI Slave Configuration */ + init_spislv(arb); + + /* Input data calibration flow; */ + if (init_sistrobe(arb)) { + printk(BIOS_ERR, "[%s] data calibration fail\n", __func__); + return E_SPI_INIT_SIDLY; + } + + /* Lock SPISLV Registers */ + arb->write(arb, DEFAULT_SLVID, PMIC_SPISLV_KEY, 0x0); + + /* + * Status update function initialization + * 1. Check signature using CRC (CRC 0 only) + * 2. Update EINT + * 3. Read back AUXADC thermal data for GPS + */ + init_staupd(arb); + + /* Configure PMIF Timer */ + write32(&arb->mtk_pmif->timer_ctrl, 0x3); + + /* Enable interfaces and arbitration */ + write32(&arb->mtk_pmif->inf_en, PMIF_SPI_HW_INF | PMIF_SPI_MD | + PMIF_SPI_AP_SECURE | PMIF_SPI_AP); + + write32(&arb->mtk_pmif->arb_en, PMIF_SPI_HW_INF | PMIF_SPI_MD | PMIF_SPI_AP_SECURE | + PMIF_SPI_AP | PMIF_SPI_STAUPD | PMIF_SPI_TSX_HW | PMIF_SPI_DCXO_HW); + + /* Enable GPS AUXADC HW 0 and 1 */ + SET32_BITFIELDS(&arb->mtk_pmif->other_inf_en, INTGPSADCINF_EN, 0x3); + + /* Set INIT_DONE */ + write32(&arb->mtk_pmif->init_done, 0x1); + + return 0; +} diff --git a/src/soc/mediatek/mt8192/pmif_spmi.c b/src/soc/mediatek/mt8192/pmif_spmi.c new file mode 100644 index 0000000000..87b003bd3f --- /dev/null +++ b/src/soc/mediatek/mt8192/pmif_spmi.c @@ -0,0 +1,242 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define PMIF_CMD_PER_3 (0x1 << PMIF_CMD_EXT_REG_LONG) +#define PMIF_CMD_PER_1_3 ((0x1 << PMIF_CMD_REG) | (0x1 << PMIF_CMD_EXT_REG_LONG)) + +/* IOCFG_BM, DRV_CFG2 */ +DEFINE_BITFIELD(SPMI_SCL, 5, 3) +DEFINE_BITFIELD(SPMI_SDA, 8, 6) + +/* TOPRGU, WDT_SWSYSRST2 */ +DEFINE_BIT(SPMI_MST_RST, 4) +DEFINE_BITFIELD(UNLOCK_KEY, 31, 24) + +/* TOPCKGEN, CLK_CFG_15 */ +DEFINE_BITFIELD(CLK_SPMI_MST_SEL, 10, 8) +DEFINE_BIT(CLK_SPMI_MST_INT, 12) +DEFINE_BIT(PDN_SPMI_MST, 15) + +/* TOPCKGEN, CLK_CFG_UPDATE2 */ +DEFINE_BIT(SPMI_MST_CK_UPDATE, 30) + +/* SPMI_MST, SPMI_SAMPL_CTRL */ +DEFINE_BIT(SAMPL_CK_POL, 0) +DEFINE_BITFIELD(SAMPL_CK_DLY, 3, 1) + +/* PMIF, SPI_MODE_CTRL */ +DEFINE_BIT(SPI_MODE_CTRL, 7) +DEFINE_BIT(SRVOL_EN, 11) +DEFINE_BIT(SPI_MODE_EXT_CMD, 12) +DEFINE_BIT(SPI_EINT_MODE_GATING_EN, 13) + +/* PMIF, SLEEP_PROTECTION_CTRL */ +DEFINE_BITFIELD(SPM_SLEEP_REQ_SEL, 1, 0) +DEFINE_BITFIELD(SCP_SLEEP_REQ_SEL, 10, 9) + +static const struct spmi_device spmi_dev[] = { + { + .slvid = SPMI_SLAVE_6, + .type = BUCK_CPU, + .type_id = BUCK_CPU_ID, + }, + { + .slvid = SPMI_SLAVE_7, + .type = BUCK_GPU, + .type_id = BUCK_GPU_ID, + }, +}; + +static int spmi_config_master(void) +{ + /* Software reset */ + SET32_BITFIELDS(&mtk_rug->wdt_swsysrst2, SPMI_MST_RST, 1, UNLOCK_KEY, 0x85); + + SET32_BITFIELDS(&mtk_topckgen->clk_cfg_15, + CLK_SPMI_MST_SEL, 0x7, + CLK_SPMI_MST_INT, 1, + PDN_SPMI_MST, 1); + SET32_BITFIELDS(&mtk_topckgen->clk_cfg_update2, SPMI_MST_CK_UPDATE, 1); + + /* Software reset */ + SET32_BITFIELDS(&mtk_rug->wdt_swsysrst2, SPMI_MST_RST, 0, UNLOCK_KEY, 0x85); + + /* Enable SPMI */ + write32(&mtk_spmi_mst->mst_req_en, 1); + + return 0; +} + +static int spmi_read_check(struct pmif *pmif_arb, int slvid) +{ + u32 rdata = 0; + + pmif_arb->read(pmif_arb, slvid, MT6315_READ_TEST, &rdata); + if (rdata != MT6315_DEFAULT_VALUE_READ) { + printk(BIOS_ERR, "%s next, slvid:%d rdata = 0x%x.\n", + __func__, slvid, rdata); + return -E_NODEV; + } + + pmif_arb->read(pmif_arb, slvid, MT6315_READ_TEST_1, &rdata); + if (rdata != MT6315_DEFAULT_VALUE_READ) { + printk(BIOS_ERR, "%s next, slvid:%d rdata = 0x%x.\n", + __func__, slvid, rdata); + return -E_NODEV; + } + + return 0; +} + +static int spmi_cali_rd_clock_polarity(struct pmif *pmif_arb, const struct spmi_device *dev) +{ + int i; + bool success = false; + const struct cali cali_data[] = { + {SPMI_CK_DLY_1T, SPMI_CK_POL_POS}, + {SPMI_CK_NO_DLY, SPMI_CK_POL_POS}, + {SPMI_CK_NO_DLY, SPMI_CK_POL_NEG}, + }; + + /* Indicate sampling clock polarity, 1: Positive 0: Negative */ + for (i = 0; i < ARRAY_SIZE(cali_data); i++) { + SET32_BITFIELDS(&mtk_spmi_mst->mst_sampl, SAMPL_CK_DLY, cali_data[i].dly, + SAMPL_CK_POL, cali_data[i].pol); + if (spmi_read_check(pmif_arb, dev->slvid) == 0) { + success = true; + break; + } + } + + if (!success) + die("ERROR - calibration fail for spmi clk"); + + return 0; +} + +static int spmi_mst_init(struct pmif *pmif_arb) +{ + int i; + + if (!pmif_arb) { + printk(BIOS_ERR, "%s: null pointer for pmif dev.\n", __func__); + return -E_INVAL; + } + + /* config IOCFG */ + SET32_BITFIELDS(&mtk_iocfg_bm->drv_cfg2, SPMI_SCL, 0x2, SPMI_SDA, 0x2); + spmi_config_master(); + + for (i = 0; i < ARRAY_SIZE(spmi_dev); i++) + spmi_cali_rd_clock_polarity(pmif_arb, &spmi_dev[i]); + + return 0; +} + +static void pmif_spmi_force_normal_mode(int mstid) +{ + struct pmif *arb = get_pmif_controller(PMIF_SPMI, mstid); + + /* listen srclken_0 only for entering normal or sleep mode */ + SET32_BITFIELDS(&arb->mtk_pmif->spi_mode_ctrl, + SPI_MODE_CTRL, 0, + SRVOL_EN, 0, + SPI_MODE_EXT_CMD, 1, + SPI_EINT_MODE_GATING_EN, 1); + + /* enable spm/scp sleep request */ + SET32_BITFIELDS(&arb->mtk_pmif->sleep_protection_ctrl, SPM_SLEEP_REQ_SEL, 0, + SCP_SLEEP_REQ_SEL, 0); +} + +static void pmif_spmi_enable_swinf(int mstid) +{ + struct pmif *arb = get_pmif_controller(PMIF_SPMI, mstid); + + write32(&arb->mtk_pmif->inf_en, PMIF_SPMI_SW_CHAN); + write32(&arb->mtk_pmif->arb_en, PMIF_SPMI_SW_CHAN); +} + +static void pmif_spmi_enable_cmdIssue(int mstid, bool en) +{ + struct pmif *arb = get_pmif_controller(PMIF_SPMI, mstid); + + /* Enable cmdIssue */ + write32(&arb->mtk_pmif->cmdissue_en, en); +} + +static void pmif_spmi_enable(int mstid) +{ + struct pmif *arb = get_pmif_controller(PMIF_SPMI, mstid); + u32 cmd_per; + + /* clear all cmd permission for per channel */ + write32(&arb->mtk_pmif->inf_cmd_per_0, 0); + write32(&arb->mtk_pmif->inf_cmd_per_1, 0); + write32(&arb->mtk_pmif->inf_cmd_per_2, 0); + write32(&arb->mtk_pmif->inf_cmd_per_3, 0); + + /* enable if we need cmd 0~3 permission for per channel */ + cmd_per = PMIF_CMD_PER_3 << 28 | PMIF_CMD_PER_3 << 24 | + PMIF_CMD_PER_3 << 20 | PMIF_CMD_PER_3 << 16 | + PMIF_CMD_PER_3 << 8 | PMIF_CMD_PER_3 << 4 | + PMIF_CMD_PER_1_3 << 0; + write32(&arb->mtk_pmif->inf_cmd_per_0, cmd_per); + + cmd_per = PMIF_CMD_PER_3 << 4; + write32(&arb->mtk_pmif->inf_cmd_per_1, cmd_per); + + /* + * set bytecnt max limitation. + * hw bytecnt indicate when we set 0, it can send 1 byte; + * set 1, it can send 2 byte. + */ + write32(&arb->mtk_pmif->inf_max_bytecnt_per_0, 0); + write32(&arb->mtk_pmif->inf_max_bytecnt_per_1, 0); + write32(&arb->mtk_pmif->inf_max_bytecnt_per_2, 0); + write32(&arb->mtk_pmif->inf_max_bytecnt_per_3, 0); + + /* Add latency limitation */ + write32(&arb->mtk_pmif->lat_cnter_en, PMIF_SPMI_INF); + write32(&arb->mtk_pmif->lat_limit_0, 0); + write32(&arb->mtk_pmif->lat_limit_1, 0x4); + write32(&arb->mtk_pmif->lat_limit_2, 0x8); + write32(&arb->mtk_pmif->lat_limit_4, 0x8); + write32(&arb->mtk_pmif->lat_limit_6, 0x3FF); + write32(&arb->mtk_pmif->lat_limit_9, 0x4); + write32(&arb->mtk_pmif->lat_limit_loading, PMIF_SPMI_INF); + + write32(&arb->mtk_pmif->inf_en, PMIF_SPMI_INF); + write32(&arb->mtk_pmif->arb_en, PMIF_SPMI_INF); + write32(&arb->mtk_pmif->timer_ctrl, 0x3); + write32(&arb->mtk_pmif->init_done, 1); +} + +int pmif_spmi_init(struct pmif *arb) +{ + if (arb->is_pmif_init_done(arb) != 0) { + pmif_spmi_force_normal_mode(arb->mstid); + pmif_spmi_enable_swinf(arb->mstid); + pmif_spmi_enable_cmdIssue(arb->mstid, true); + pmif_spmi_enable(arb->mstid); + if (arb->is_pmif_init_done(arb)) + return -E_NODEV; + } + + if (spmi_mst_init(arb)) { + printk(BIOS_ERR, "[%s] failed to init spmi master\n", __func__); + return -E_NODEV; + } + + return 0; +} -- cgit v1.2.3