| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <delay.h> |
| #include <device/mmio.h> |
| #include <soc/clkbuf.h> |
| #include <soc/pmif.h> |
| #if CONFIG(SRCLKEN_RC_SUPPORT) |
| #include <soc/srclken_rc.h> |
| #endif |
| |
| #define BUFTAG "[CLKBUF]" |
| #define buf_info(fmt, arg ...) printk(BIOS_INFO, BUFTAG "%s,%d: " fmt, \ |
| __func__, __LINE__, ## arg) |
| |
| #define _buf_clrset32_impl(addr, clear, set) \ |
| buf_write(addr, (buf_read(addr) & ~((uint32_t)(clear))) | (set)) |
| |
| #define BUF_SET_FIELDS(addr, ...) \ |
| _BF_IMPL(_buf_clrset32_impl, addr, __VA_ARGS__) |
| #define BUF_READ_FIELD(addr, name) \ |
| EXTRACT_BITFIELD(buf_read(addr), name) |
| |
| #define PMIC_CW00_INIT_VAL 0x4005 /* 0100 0000 0000 0101 */ |
| #define PMIC_CW09_INIT_VAL 0x01F0 /* 0000 0001 1111 0000 */ |
| |
| static struct pmif *pmif_arb; |
| |
| static u32 buf_read(u32 addr) |
| { |
| u32 rdata; |
| |
| if (!pmif_arb) |
| pmif_arb = get_pmif_controller(PMIF_SPI, 0); |
| pmif_arb->read(pmif_arb, 0, addr, &rdata); |
| |
| return rdata; |
| } |
| |
| static void buf_write(u32 addr, u32 wdata) |
| { |
| if (!pmif_arb) |
| pmif_arb = get_pmif_controller(PMIF_SPI, 0); |
| pmif_arb->write(pmif_arb, 0, addr, wdata); |
| } |
| |
| static void dump_clkbuf_log(void) |
| { |
| u32 pmic_cw00, pmic_cw09, pmic_cw12, pmic_cw13, pmic_cw15, pmic_cw19, |
| top_spi_con1, ldo_vrfck_op_en, ldo_vbbck_op_en, ldo_vrfck_en, |
| ldo_vbbck_en, vrfck_hv_en; |
| |
| pmic_cw00 = BUF_READ_FIELD(PMIC_RG_DCXO_CW00, PMIC_REG_COMMON); |
| pmic_cw09 = BUF_READ_FIELD(PMIC_RG_DCXO_CW09, PMIC_REG_COMMON); |
| pmic_cw12 = BUF_READ_FIELD(PMIC_RG_DCXO_CW12, PMIC_REG_COMMON); |
| pmic_cw13 = BUF_READ_FIELD(PMIC_RG_DCXO_CW13, PMIC_REG_COMMON); |
| pmic_cw15 = BUF_READ_FIELD(PMIC_RG_DCXO_CW15, PMIC_REG_COMMON); |
| pmic_cw19 = BUF_READ_FIELD(PMIC_RG_DCXO_CW19, PMIC_REG_COMMON); |
| buf_info("DCXO_CW00/09/12/13/15/19=%#x %#x %#x %#x %#x %#x\n", |
| pmic_cw00, pmic_cw09, pmic_cw12, |
| pmic_cw13, pmic_cw15, pmic_cw19); |
| |
| top_spi_con1 = BUF_READ_FIELD(PMIC_RG_TOP_SPI_CON1, PMIC_RG_SRCLKEN_IN3_EN); |
| ldo_vrfck_op_en = BUF_READ_FIELD(PMIC_RG_LDO_VRFCK_OP_EN, |
| PMIC_RG_LDO_VRFCK_HW14_OP_EN); |
| ldo_vbbck_op_en = BUF_READ_FIELD(PMIC_RG_LDO_VBBCK_OP_EN, |
| PMIC_RG_LDO_VBBCK_HW14_OP_EN); |
| ldo_vrfck_en = BUF_READ_FIELD(PMIC_RG_LDO_VRFCK_CON0, PMIC_RG_LDO_VRFCK_EN); |
| ldo_vbbck_en = BUF_READ_FIELD(PMIC_RG_LDO_VBBCK_CON0, PMIC_RG_LDO_VBBCK_EN); |
| buf_info("spi_con1/ldo_rf_op/ldo_bb_op/ldo_rf_en/ldo_bb_en=%#x %#x %#x %#x %#x\n", |
| top_spi_con1, ldo_vrfck_op_en, ldo_vbbck_op_en, |
| ldo_vrfck_en, ldo_vbbck_en); |
| |
| vrfck_hv_en = BUF_READ_FIELD(PMIC_RG_DCXO_ADLDO_BIAS_ELR_0, PMIC_RG_VRFCK_HV_EN); |
| buf_info("clk buf vrfck_hv_en=%#x\n", vrfck_hv_en); |
| } |
| |
| int clk_buf_init(void) |
| { |
| /* Dump registers before setting */ |
| dump_clkbuf_log(); |
| |
| /* Unlock pmic key */ |
| BUF_SET_FIELDS(PMIC_TOP_TMA_KEY, PMIC_REG_COMMON, PMIC_TOP_TMA_KEY_UNLOCK); |
| |
| /* 1.1 Set VRFCK input supply(11.ac mode) */ |
| BUF_SET_FIELDS(PMIC_RG_DCXO_ADLDO_BIAS_ELR_0, PMIC_RG_VRFCK_HV_EN, 0x0); |
| |
| /* 1.2.0 Set VRFCK En = 0 */ |
| BUF_SET_FIELDS(PMIC_RG_LDO_VRFCK_CON0, PMIC_RG_LDO_VRFCK_EN, 0x0); |
| /* 1.2.1 Set VRFCK1 as power src */ |
| BUF_SET_FIELDS(PMIC_RG_LDO_VRFCK_ELR, PMIC_RG_LDO_VRFCK_ANA_SEL, 0x1); |
| |
| /* 1.2.2 Switch LDO-RFCK to LDO-RFCK1 */ |
| BUF_SET_FIELDS(PMIC_RG_DCXO_ADLDO_BIAS_ELR_0, PMIC_RG_VRFCK_NDIS_EN, 0x0); |
| BUF_SET_FIELDS(PMIC_RG_DCXO_ADLDO_BIAS_ELR_1, PMIC_RG_VRFCK_1_NDIS_EN, 0x1); |
| |
| /* 1.2.0 Set VRFCK En = 1 */ |
| BUF_SET_FIELDS(PMIC_RG_LDO_VRFCK_CON0, PMIC_RG_LDO_VRFCK_EN, 0x1); |
| |
| /* 1.2.3 Lock pmic key */ |
| BUF_SET_FIELDS(PMIC_TOP_TMA_KEY, PMIC_REG_COMMON, 0x0); |
| |
| /* Enable XO LDO */ |
| BUF_SET_FIELDS(PMIC_RG_LDO_VRFCK_OP_EN_SET, PMIC_RG_LDO_VRFCK_HW14_OP_EN, 0x1); |
| BUF_SET_FIELDS(PMIC_RG_LDO_VBBCK_OP_EN_SET, PMIC_RG_LDO_VBBCK_HW14_OP_EN, 0x1); |
| BUF_SET_FIELDS(PMIC_RG_LDO_VRFCK_CON0, PMIC_RG_LDO_VRFCK_EN, 0x0); |
| BUF_SET_FIELDS(PMIC_RG_LDO_VBBCK_CON0, PMIC_RG_LDO_VBBCK_EN, 0x0); |
| |
| /* Enable 26M control */ |
| if (!CONFIG(SRCLKEN_RC_SUPPORT)) { |
| /* Legacy co-clock mode */ |
| BUF_SET_FIELDS(PMIC_RG_TOP_SPI_CON1, PMIC_RG_SRCLKEN_IN3_EN, 0x0); |
| |
| BUF_SET_FIELDS(PMIC_RG_DCXO_CW00, PMIC_REG_COMMON, PMIC_CW00_INIT_VAL); |
| BUF_SET_FIELDS(PMIC_RG_DCXO_CW09, PMIC_REG_COMMON, PMIC_CW09_INIT_VAL); |
| } else { |
| /* New co-clock mode */ |
| /* All XO mode should set to 2'b01 */ |
| BUF_SET_FIELDS(PMIC_RG_DCXO_CW00, PMIC_REG_COMMON, PMIC_CW00_INIT_VAL); |
| BUF_SET_FIELDS(PMIC_RG_DCXO_CW09, PMIC_REG_COMMON, PMIC_CW09_INIT_VAL); |
| |
| /* 1. Update control mapping table */ |
| BUF_SET_FIELDS(PMIC_RG_XO_BUF_CTL0, PMIC_RG_XO_VOTE, 0x005); |
| BUF_SET_FIELDS(PMIC_RG_XO_BUF_CTL1, PMIC_RG_XO_VOTE, 0x0); |
| BUF_SET_FIELDS(PMIC_RG_XO_BUF_CTL2, PMIC_RG_XO_VOTE, 0x0); |
| BUF_SET_FIELDS(PMIC_RG_XO_BUF_CTL3, PMIC_RG_XO_VOTE, 0x0); |
| BUF_SET_FIELDS(PMIC_RG_XO_BUF_CTL4, PMIC_RG_XO_VOTE, 0x0); |
| /* Wait 100us */ |
| udelay(100); |
| |
| /* 2. Switch to new control mode */ |
| BUF_SET_FIELDS(PMIC_RG_DCXO_CW08, PMIC_RG_XO_PMIC_TOP_DIG_SW, 0x0); |
| } |
| |
| /* Check if the setting is ok */ |
| dump_clkbuf_log(); |
| |
| return 0; |
| } |