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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (c) 2018-2019 Synopsys, Inc. and/or its affiliates.
- *
- * Synopsys DesignWare MIPI D-PHY controller driver
- * Core functions
- *
- * Author: Luis Oliveira <luis.oliveira@synopsys.com>
- */
- #include "dw-dphy-rx.h"
- #include "bm_csi_dphy.h"
- #include "bm_printk.h"
- struct range_dphy_gen2 {
- u32 freq;
- u8 hsfregrange;
- };
- struct range_dphy_gen2 range_gen2[] = {
- { 80, 0x00 }, { 90, 0x10 }, { 100, 0x20 }, { 110, 0x30 },
- { 120, 0x01 }, { 130, 0x11 }, { 140, 0x21 }, { 150, 0x31 },
- { 160, 0x02 }, { 170, 0x12 }, { 180, 0x22 }, { 190, 0x32 },
- { 205, 0x03 }, { 220, 0x13 }, { 235, 0x23 }, { 250, 0x33 },
- { 275, 0x04 }, { 300, 0x14 }, { 325, 0x05 }, { 350, 0x15 },
- { 400, 0x25 }, { 450, 0x06 }, { 500, 0x16 }, { 550, 0x07 },
- { 600, 0x17 }, { 650, 0x08 }, { 700, 0x18 }, { 750, 0x09 },
- { 800, 0x19 }, { 850, 0x29 }, { 900, 0x39 }, { 950, 0x0A },
- { 1000, 0x1A }, { 1050, 0x2A }, { 1100, 0x3A }, { 1150, 0x0B },
- { 1200, 0x1B }, { 1250, 0x2B }, { 1300, 0x3B }, { 1350, 0x0C },
- { 1400, 0x1C }, { 1450, 0x2C }, { 1500, 0x3C }, { 1550, 0x0D },
- { 1600, 0x1D }, { 1650, 0x2D }, { 1700, 0x0E }, { 1750, 0x1E },
- { 1800, 0x2E }, { 1850, 0x3E }, { 1900, 0x0F }, { 1950, 0x1F },
- { 2000, 0x2F },
- };
- struct range_dphy_gen3 {
- u32 freq;
- u8 hsfregrange;
- u32 osc_freq_target;
- };
- struct range_dphy_gen3 range_gen3[] = {
- { 80, 0x00, 0x1B6 }, { 90, 0x10, 0x1B6 }, { 100, 0x20, 0x1B6 },
- { 110, 0x30, 0x1B6 }, { 120, 0x01, 0x1B6 }, { 130, 0x11, 0x1B6 },
- { 140, 0x21, 0x1B6 }, { 150, 0x31, 0x1B6 }, { 160, 0x02, 0x1B6 },
- { 170, 0x12, 0x1B6 }, { 180, 0x22, 0x1B6 }, { 190, 0x32, 0x1B6 },
- { 205, 0x03, 0x1B6 }, { 220, 0x13, 0x1B6 }, { 235, 0x23, 0x1B6 },
- { 250, 0x33, 0x1B6 }, { 275, 0x04, 0x1B6 }, { 300, 0x14, 0x1B6 },
- { 325, 0x25, 0x1B6 }, { 350, 0x35, 0x1B6 }, { 400, 0x05, 0x1B6 },
- { 450, 0x16, 0x1B6 }, { 500, 0x26, 0x1B6 }, { 550, 0x37, 0x1B6 },
- { 600, 0x07, 0x1B6 }, { 650, 0x18, 0x1B6 }, { 700, 0x28, 0x1B6 },
- { 750, 0x39, 0x1B6 }, { 800, 0x09, 0x1B6 }, { 850, 0x19, 0x1B6 },
- { 900, 0x29, 0x1B6 }, { 950, 0x3A, 0x1B6 }, { 1000, 0x0A, 0x1B6 },
- { 1050, 0x1A, 0x1B6 }, { 1100, 0x2A, 0x1B6 }, { 1150, 0x3B, 0x1B6 },
- { 1200, 0x0B, 0x1B6 }, { 1250, 0x1B, 0x1B6 }, { 1300, 0x2B, 0x1B6 },
- { 1350, 0x3C, 0x1B6 }, { 1400, 0x0C, 0x1B6 }, { 1450, 0x1C, 0x1B6 },
- { 1500, 0x2C, 0x1B6 }, { 1550, 0x3D, 0x10F }, { 1600, 0x0D, 0x118 },
- { 1650, 0x1D, 0x121 }, { 1700, 0x2E, 0x12A }, { 1750, 0x3E, 0x132 },
- { 1800, 0x0E, 0x13B }, { 1850, 0x1E, 0x144 }, { 1900, 0x2F, 0x14D },
- { 1950, 0x3F, 0x155 }, { 2000, 0x0F, 0x15E }, { 2050, 0x40, 0x167 },
- { 2100, 0x41, 0x170 }, { 2150, 0x42, 0x178 }, { 2200, 0x43, 0x181 },
- { 2250, 0x44, 0x18A }, { 2300, 0x45, 0x193 }, { 2350, 0x46, 0x19B },
- { 2400, 0x47, 0x1A4 }, { 2450, 0x48, 0x1AD }, { 2500, 0x49, 0x1B6 }
- };
- u8 dw_dphy_setup_config(struct dw_dphy_rx *dphy)
- {
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- #if 0
- int ret;
- if (dphy->max_lanes == CTRL_4_LANES) {
- dev_vdbg(&dphy->phy->dev, "CONFIG 4L\n");
- return CTRL_4_LANES;
- }
- if (IS_ENABLED(CONFIG_OF)) {
- ret = gpio_request(dphy->config_8l, "config");
- if (ret < 0) {
- dev_vdbg(&dphy->phy->dev,
- "could not acquire config (err=%d)\n", ret);
- return ret;
- }
- ret = gpio_get_value(dphy->config_8l);
- gpio_free(dphy->config_8l);
- } else {
- ret = dphy->config_8l;
- }
- dev_vdbg(&dphy->phy->dev,
- "Booting in [%s] mode\n",
- ret == CTRL_8_LANES ? "8L" : "4+4L");
- return ret;
- #endif
- #endif /* CONFIG_DWC_MIPI_TC_DPHY_GEN3 */
- return CTRL_4_LANES;
- }
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- //extern int k_bm_visys_write_reg(uint32_t offset, uint32_t value);
- //extern int k_bm_visys_read_reg(uint32_t offset, uint32_t *value);
- void dw_dphy_if_write(struct dw_dphy_rx *dphy, u32 address, u32 data)
- {
- writel(data, dphy->dphy1_if_addr + address);
- //k_bm_visys_write_reg(address, data);
- }
- u32 dw_dphy_if_read(struct dw_dphy_rx *dphy, u32 address)
- {
- u32 if1 = 0;
- if1 = readl(dphy->dphy1_if_addr + address);
- //k_bm_visys_read_reg(address, &if1);
- return if1;
- }
- #endif
- void dw_dphy_write(struct dw_dphy_rx *dphy, u32 address, u32 data)
- {
- iowrite32(data, dphy->base_address + address);
- if (dphy->lanes_config == CTRL_4_LANES)
- return;
- return;
- if (address == R_CSI2_DPHY_TST_CTRL0)
- iowrite32(data, dphy->base_address + R_CSI2_DPHY2_TST_CTRL0);
- else if (address == R_CSI2_DPHY_TST_CTRL1)
- iowrite32(data, dphy->base_address + R_CSI2_DPHY2_TST_CTRL1);
- }
- u32 dw_dphy_read(struct dw_dphy_rx *dphy, u32 address)
- {
- int dphy1 = 0, dphy2 = 0;
- dphy1 = ioread32(dphy->base_address + address);
- if (dphy->lanes_config == CTRL_4_LANES)
- goto end;
- goto end;
- if (address == R_CSI2_DPHY_TST_CTRL0)
- dphy2 = ioread32(dphy->base_address + R_CSI2_DPHY2_TST_CTRL0);
- else if (address == R_CSI2_DPHY_TST_CTRL1)
- dphy2 = ioread32(dphy->base_address + R_CSI2_DPHY2_TST_CTRL1);
- else
- return -ENODEV;
- end:
- return dphy1;
- }
- void dw_dphy_write_msk(struct dw_dphy_rx *dev, u32 address, u32 data, u8 shift,
- u8 width)
- {
- u32 temp = dw_dphy_read(dev, address);
- u32 mask = (1 << width) - 1;
- temp &= ~(mask << shift);
- temp |= (data & mask) << shift;
- dw_dphy_write(dev, address, temp);
- }
- static void dw_dphy_te_12b_write(struct dw_dphy_rx *dphy, u16 addr, u8 data)
- {
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 1, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0x00, PHY_TESTDIN, 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, (u8)(addr >> 8),
- PHY_TESTDIN, 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 1, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, (u8)addr, PHY_TESTDIN,
- 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, (u8)data, PHY_TESTDIN,
- 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- }
- static void dw_dphy_te_8b_write(struct dw_dphy_rx *dphy, u8 addr, u8 data)
- {
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_TST_CTRL1, addr);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 1, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_TST_CTRL1, data);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- }
- static void dw_dphy_te_write(struct dw_dphy_rx *dphy, u16 addr, u8 data)
- {
- dphy->dphy_te_len = BIT12;
- if (dphy->dphy_te_len == BIT12)
- dw_dphy_te_12b_write(dphy, addr, data);
- else
- dw_dphy_te_8b_write(dphy, addr, data);
- }
- static int dw_dphy_te_12b_read(struct dw_dphy_rx *dphy, u32 addr)
- {
- u8 ret;
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 1, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0x00, PHY_TESTDIN, 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, (u8)(addr >> 8),
- PHY_TESTDIN, 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 1, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, (u8)addr, PHY_TESTDIN,
- 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0x00, 0, PHY_TESTDIN);
- ret = dw_dphy_read_msk(dphy, R_CSI2_DPHY_TST_CTRL1, PHY_TESTDOUT, 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 1);
- return ret;
- }
- static int dw_dphy_te_8b_read(struct dw_dphy_rx *dphy, u32 addr)
- {
- u8 ret;
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 0);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 0);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 1, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, addr, PHY_TESTDIN, 8);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTEN, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL1, 0, PHY_TESTDIN, 8);
- ret = dw_dphy_read_msk(dphy, R_CSI2_DPHY_TST_CTRL1, PHY_TESTDOUT, 8);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 1);
- return ret;
- }
- int dw_dphy_te_read(struct dw_dphy_rx *dphy, u32 addr)
- {
- int ret;
- if (dphy->dphy_te_len == BIT12)
- ret = dw_dphy_te_12b_read(dphy, addr);
- else
- ret = dw_dphy_te_12b_read(dphy, addr);
- //ret = dw_dphy_te_8b_read(dphy, addr);
- return ret;
- }
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- static void dw_dphy_if_init(struct dw_dphy_rx *dphy)
- {
- bm_info("enter %s\n", __func__);
- //dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RESET);
- //dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, TX_PHY);
- //dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLR, 1);
- //dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLR, 1);
- //dw_dphy_if_write(dphy, DPHYZCALCTRL, 0);
- //dw_dphy_if_write(dphy, DPHYZCALCTRL, 1);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RESET);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, GLUELOGIC);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLR, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLR, 1);
- //dw_dphy_if_write(dphy, DPHYZCALCTRL, 0);
- //dw_dphy_if_write(dphy, DPHYZCALCTRL, 1);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RESET);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RX_PHY);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLR, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLR, 1);
- //dw_dphy_if_write(dphy, DPHYZCALCTRL, 0);
- //dw_dphy_if_write(dphy, DPHYZCALCTRL, 1);
- }
- #endif
- static void dw_dphy_gen3_12bit_tc_power_up(struct dw_dphy_rx *dphy, uint8_t hsfregrange)
- {
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RESET);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, GLUELOGIC);
- #endif
- dw_dphy_te_write(dphy, CFGCLKFREQRANGE_RX, 0x1C);
- dw_dphy_te_write(dphy, 0x6, hsfregrange);
- /* CLKSEL | UPDATEPLL | SHADOW_CLEAR | SHADOW_CTRL | FORCEPLL */
- //dw_dphy_te_write(dphy, BYPASS, 0x3F);
- /* IO_DS3 | IO_DS2 | IO_DS1 | IO_DS0 */
- if (dphy->dphy_freq > 1500)
- dw_dphy_te_write(dphy, IO_DS, 0x0F);
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RESET);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RX_PHY | 0x2);
- #endif
- }
- static void dw_dphy_gen3_8bit_tc_power_up(struct dw_dphy_rx *dphy)
- {
- u32 input_freq = dphy->dphy_freq / 1000;
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RESET);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, GLUELOGIC);
- dw_dphy_te_write(dphy, CFGCLKFREQRANGE_RX, 0x1C);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RESET);
- dw_dphy_if_write(dphy, DPHYGLUEIFTESTER, RX_PHY);
- #endif
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX0_MSB, 0x03);
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX0_LSB, 0x02);
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX1_MSB, 0x03);
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX1_LSB, 0x02);
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX2_MSB, 0x03);
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX2_LSB, 0x02);
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX3_MSB, 0x03);
- dw_dphy_te_write(dphy, OSC_FREQ_TARGET_RX3_LSB, 0x02);
- dw_dphy_te_write(dphy, BANDGAP_CTRL, 0x80);
- if (input_freq < 2000)
- dw_dphy_te_write(dphy, HS_RX_CTRL_LANE0, 0xC0);
- if (input_freq < 1000) {
- dw_dphy_te_write(dphy, HS_RX_CTRL_LANE1, 0xC0);
- dw_dphy_te_write(dphy, HS_RX_CTRL_LANE2, 0xC0);
- dw_dphy_te_write(dphy, HS_RX_CTRL_LANE3, 0xC0);
- }
- }
- int dw_dphy_g118_settle(struct dw_dphy_rx *dphy)
- {
- u32 input_freq, total_settle, settle_time, byte_clk, lp_time;
- lp_time = dphy->lp_time;
- input_freq = dphy->dphy_freq / 1000;
- settle_time = (8 * (1000000 / (input_freq))) + 115000;
- byte_clk = (8000000 / (input_freq));
- total_settle = (settle_time + lp_time * 1000) / byte_clk;
- if (total_settle > 0xFF)
- total_settle = 0xFF;
- return total_settle;
- }
- static void dw_dphy_pwr_down(struct dw_dphy_rx *dphy)
- {
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 0);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLK, 1);
- if (dphy->lanes_config == CTRL_8_LANES)
- dw_dphy_write_msk(dphy, R_CSI2_DPHY2_TST_CTRL0, 0, PHY_TESTCLK,
- 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 0);
- }
- static void dw_dphy_pwr_up(struct dw_dphy_rx *dphy)
- {
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLK, 1);
- if (dphy->lanes_config == CTRL_8_LANES)
- dw_dphy_write_msk(dphy, R_CSI2_DPHY2_TST_CTRL0, 1, PHY_TESTCLK,
- 1);
- dev_vdbg(&dphy->phy->dev, "DPHY power up.\n");
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 1);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 1);
- }
- static int dw_dphy_gen3_12bit_configure(struct dw_dphy_rx *dphy)
- {
- u32 input_freq = dphy->dphy_freq;
- u8 range = 0;
- dev_vdbg(&dphy->phy->dev, "12bit: PHY GEN 3: Freq: %u\n", input_freq);
- for (range = 0; (range < ARRAY_SIZE(range_gen3) - 1) &&
- ((input_freq / 1000) > range_gen3[range].freq);
- range++)
- ;
- dw_dphy_gen3_12bit_tc_power_up(dphy, range_gen3[range].hsfregrange);
- uint8_t lp_time = dphy->lp_time;
- dw_dphy_te_write(dphy, RX_RX_STARTUP_OVR_17, lp_time);//SET SETTLE TIME
- dw_dphy_te_write(dphy, RX_SYS_1, range_gen3[range].hsfregrange);
- dw_dphy_te_write(dphy, RX_SYS_0, 0x20);
- dw_dphy_te_write(dphy, RX_RX_STARTUP_OVR_2,
- (u8)range_gen3[range].osc_freq_target);
- dw_dphy_te_write(dphy, RX_RX_STARTUP_OVR_3,
- (u8)(range_gen3[range].osc_freq_target >> 8));
- dw_dphy_te_write(dphy, RX_RX_STARTUP_OVR_4, 0x01);
- if (dphy->phy_type) {
- dw_dphy_te_write(dphy, RX_RX_STARTUP_OVR_1, 0x01);
- dw_dphy_te_write(dphy, RX_RX_STARTUP_OVR_0, 0x80);
- }
- if (dphy->phy_type || input_freq <= 1500)
- dw_dphy_te_write(dphy, RX_SYS_7, 0x38);
- return 0;
- }
- static int dw_dphy_gen3_8bit_configure(struct dw_dphy_rx *dphy)
- {
- u32 input_freq = dphy->dphy_freq;
- u8 data;
- u8 range = 0;
- dev_vdbg(&dphy->phy->dev, "8bit: PHY GEN 3: Freq: %u\n", input_freq);
- for (range = 0; (range < ARRAY_SIZE(range_gen3) - 1) &&
- ((input_freq / 1000) > range_gen3[range].freq);
- range++)
- ;
- dw_dphy_te_write(dphy, RX_SKEW_CAL, dw_dphy_g118_settle(dphy));
- data = 1 << 7 | range_gen3[range].hsfregrange;
- dw_dphy_te_write(dphy, HSFREQRANGE_8BIT, data);
- dw_dphy_gen3_8bit_tc_power_up(dphy);
- return 0;
- }
- static int dw_dphy_gen2_configure(struct dw_dphy_rx *dphy)
- {
- u32 input_freq = dphy->dphy_freq;
- u8 data;
- u8 range = 0;
- /* provide an initial active-high test clear pulse in TESTCLR */
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 1, PHY_TESTCLR, 1);
- dw_dphy_write_msk(dphy, R_CSI2_DPHY_TST_CTRL0, 0, PHY_TESTCLR, 1);
- dev_vdbg(&dphy->phy->dev, "PHY GEN 2: Freq: %u\n", input_freq);
- for (range = 0; (range < ARRAY_SIZE(range_gen2) - 1) &&
- ((input_freq / 1000) > range_gen2[range].freq); range++)
- ;
- data = range_gen2[range].hsfregrange << 1;
- dw_dphy_te_write(dphy, HSFREQRANGE_8BIT, data);
- return 0;
- }
- static int dw_dphy_configure(struct dw_dphy_rx *dphy)
- {
- bm_info("enter %s\n", __func__);
- dw_dphy_pwr_down(dphy);
- dphy->dphy_gen = GEN3;
- if (dphy->dphy_gen == GEN3) {
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- dw_dphy_if_init(dphy);
- #endif
- dphy->dphy_te_len = BIT12;
- if (dphy->dphy_te_len == BIT12)
- dw_dphy_gen3_12bit_configure(dphy);
- else
- dw_dphy_gen3_8bit_configure(dphy);
- } else {
- dw_dphy_gen2_configure(dphy);
- }
- dw_dphy_pwr_up(dphy);
- return 0;
- }
- #if IS_ENABLED(CONFIG_DWC_MIPI_TC_DPHY_GEN3)
- #if 0
- int dw_dphy_if_set_idelay(struct dw_dphy_rx *dphy, u8 dly, u8 cells)
- {
- u32 val = 0;
- dw_dphy_if_write(dphy, IDLYCFG, 0);
- dw_dphy_if_write(dphy, IDLYSEL, cells);
- dw_dphy_if_write(dphy, IDLYCNTINVAL, dly);
- /* Pulse Value Set */
- dw_dphy_if_write(dphy, IDLYCFG, 1);
- usleep_range(10, 20);
- dw_dphy_if_write(dphy, IDLYCFG, 0);
- /* Pulse IDELAY CTRL Reset */
- dw_dphy_if_write(dphy, DPHY1REGRSTN, 0);
- usleep_range(10, 20);
- dw_dphy_if_write(dphy, DPHY1REGRSTN, 1);
- /* Get Value*/
- val = dw_dphy_if_read(dphy, IDLYCNTOUTVAL);
- if (val != dly) {
- dev_vdbg(&dphy->phy->dev,
- "odelay config failed, set %d get %d", dly, val);
- return -EINVAL;
- }
- return 0;
- }
- int dw_dphy_if_get_idelay(struct dw_dphy_rx *dphy)
- {
- return dw_dphy_if_read(dphy, IDLYCNTOUTVAL);
- }
- int dw_dphy_if_set_idelay_lane(struct dw_dphy_rx *dphy, u8 dly, u8 lane)
- {
- int cell;
- switch (lane) {
- case 0:
- for (cell = 3; cell <= 10; cell++)
- dw_dphy_if_set_idelay(dphy, dly, cell);
- break;
- case 1:
- for (cell = 14; cell <= 21; cell++)
- dw_dphy_if_set_idelay(dphy, dly, cell);
- break;
- case 2:
- for (cell = 24; cell <= 31; cell++)
- dw_dphy_if_set_idelay(dphy, dly, cell);
- break;
- case 3:
- for (cell = 34; cell <= 41; cell++)
- dw_dphy_if_set_idelay(dphy, dly, cell);
- break;
- case 4: /* ALL */
- dw_dphy_if_set_idelay(dphy, dly, 0x7F);
- break;
- default:
- dev_err(&dphy->phy->dev, "Lane Value not recognized\n");
- return -1;
- }
- return 0;
- }
- #endif
- #endif
- int dw_dphy_init(struct phy *phy)
- {
- struct dw_dphy_rx *dphy = phy_get_drvdata(phy);
- dev_warn(&dphy->phy->dev, "Init DPHY.\n");
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 0);
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 0);
- return 0;
- }
- static int dw_dphy_set_phy_state(struct dw_dphy_rx *dphy, u32 on)
- {
- u8 hs_freq;
- bm_info("enter %s\n", __func__);
- dphy->lanes_config = dw_dphy_setup_config(dphy);
- if (dphy->dphy_te_len == BIT12)
- hs_freq = RX_SYS_1;
- else
- hs_freq = HSFREQRANGE_8BIT;
- if (on) {
- dw_dphy_configure(dphy);
- dev_info(&dphy->phy->dev,
- "HS Code: 0X%x\n", dw_dphy_te_read(dphy, hs_freq));
- } else {
- dw_dphy_write(dphy, R_CSI2_DPHY_SHUTDOWNZ, 0);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 0);
- }
- return 0;
- }
- int dw_dphy_power_on(struct phy *phy)
- {
- struct dw_dphy_rx *dphy = phy_get_drvdata(phy);
- dev_info(&dphy->phy->dev, "DPHY Power ON\n");
- bm_info("enter %s\n", __func__);
- return dw_dphy_set_phy_state(dphy, 1);
- }
- int dw_dphy_power_off(struct phy *phy)
- {
- struct dw_dphy_rx *dphy = phy_get_drvdata(phy);
- return dw_dphy_set_phy_state(dphy, 0);
- }
- int dw_dphy_reset(struct phy *phy)
- {
- struct dw_dphy_rx *dphy = phy_get_drvdata(phy);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 0);
- usleep_range(100, 200);
- dw_dphy_write(dphy, R_CSI2_DPHY_RSTZ, 1);
- return 0;
- }
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