| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (C) 2015 Broadcom |
| * Copyright (c) 2014 The Linux Foundation. All rights reserved. |
| * Copyright (C) 2013 Red Hat |
| * Author: Rob Clark <robdclark@gmail.com> |
| */ |
| |
| #include "vc4_hdmi.h" |
| #include "vc4_regs.h" |
| #include "vc4_hdmi_regs.h" |
| |
| #define VC4_HDMI_TX_PHY_RESET_CTL_PLL_RESETB BIT(5) |
| #define VC4_HDMI_TX_PHY_RESET_CTL_PLLDIV_RESETB BIT(4) |
| #define VC4_HDMI_TX_PHY_RESET_CTL_TX_CK_RESET BIT(3) |
| #define VC4_HDMI_TX_PHY_RESET_CTL_TX_2_RESET BIT(2) |
| #define VC4_HDMI_TX_PHY_RESET_CTL_TX_1_RESET BIT(1) |
| #define VC4_HDMI_TX_PHY_RESET_CTL_TX_0_RESET BIT(0) |
| |
| #define VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN BIT(4) |
| |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_PREEMP_SHIFT 29 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_PREEMP_MASK VC4_MASK(31, 29) |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_MAINDRV_SHIFT 24 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_MAINDRV_MASK VC4_MASK(28, 24) |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_PREEMP_SHIFT 21 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_PREEMP_MASK VC4_MASK(23, 21) |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_MAINDRV_SHIFT 16 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_MAINDRV_MASK VC4_MASK(20, 16) |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_PREEMP_SHIFT 13 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_PREEMP_MASK VC4_MASK(15, 13) |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_MAINDRV_SHIFT 8 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_MAINDRV_MASK VC4_MASK(12, 8) |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_PREEMP_SHIFT 5 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_PREEMP_MASK VC4_MASK(7, 5) |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_MAINDRV_SHIFT 0 |
| #define VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_MAINDRV_MASK VC4_MASK(4, 0) |
| |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA2_SHIFT 15 |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA2_MASK VC4_MASK(19, 15) |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA1_SHIFT 10 |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA1_MASK VC4_MASK(14, 10) |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA0_SHIFT 5 |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA0_MASK VC4_MASK(9, 5) |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_CK_SHIFT 0 |
| #define VC4_HDMI_TX_PHY_CTL_1_RES_SEL_CK_MASK VC4_MASK(4, 0) |
| |
| #define VC4_HDMI_TX_PHY_CTL_2_VCO_GAIN_SHIFT 16 |
| #define VC4_HDMI_TX_PHY_CTL_2_VCO_GAIN_MASK VC4_MASK(19, 16) |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA2_SHIFT 12 |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA2_MASK VC4_MASK(15, 12) |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA1_SHIFT 8 |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA1_MASK VC4_MASK(11, 8) |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA0_SHIFT 4 |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA0_MASK VC4_MASK(7, 4) |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELCK_SHIFT 0 |
| #define VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELCK_MASK VC4_MASK(3, 0) |
| |
| #define VC4_HDMI_TX_PHY_CTL_3_RP_SHIFT 17 |
| #define VC4_HDMI_TX_PHY_CTL_3_RP_MASK VC4_MASK(19, 17) |
| #define VC4_HDMI_TX_PHY_CTL_3_RZ_SHIFT 12 |
| #define VC4_HDMI_TX_PHY_CTL_3_RZ_MASK VC4_MASK(16, 12) |
| #define VC4_HDMI_TX_PHY_CTL_3_CP1_SHIFT 10 |
| #define VC4_HDMI_TX_PHY_CTL_3_CP1_MASK VC4_MASK(11, 10) |
| #define VC4_HDMI_TX_PHY_CTL_3_CP_SHIFT 8 |
| #define VC4_HDMI_TX_PHY_CTL_3_CP_MASK VC4_MASK(9, 8) |
| #define VC4_HDMI_TX_PHY_CTL_3_CZ_SHIFT 6 |
| #define VC4_HDMI_TX_PHY_CTL_3_CZ_MASK VC4_MASK(7, 6) |
| #define VC4_HDMI_TX_PHY_CTL_3_ICP_SHIFT 0 |
| #define VC4_HDMI_TX_PHY_CTL_3_ICP_MASK VC4_MASK(5, 0) |
| |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_MASH11_MODE BIT(13) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_VC_RANGE_EN BIT(12) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_EMULATE_VC_LOW BIT(11) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_EMULATE_VC_HIGH BIT(10) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_SEL_SHIFT 9 |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_SEL_MASK VC4_MASK(9, 9) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_FB_DIV2 BIT(8) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_POST_DIV2 BIT(7) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_CONT_EN BIT(6) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_0_ENA_VCO_CLK BIT(5) |
| |
| #define VC4_HDMI_TX_PHY_PLL_CTL_1_CPP_SHIFT 16 |
| #define VC4_HDMI_TX_PHY_PLL_CTL_1_CPP_MASK VC4_MASK(27, 16) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_DELAY_SHIFT 14 |
| #define VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_DELAY_MASK VC4_MASK(15, 14) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_ENABLE BIT(13) |
| #define VC4_HDMI_TX_PHY_PLL_CTL_1_POST_RST_SEL_SHIFT 11 |
| #define VC4_HDMI_TX_PHY_PLL_CTL_1_POST_RST_SEL_MASK VC4_MASK(12, 11) |
| |
| #define VC4_HDMI_TX_PHY_CLK_DIV_VCO_SHIFT 8 |
| #define VC4_HDMI_TX_PHY_CLK_DIV_VCO_MASK VC4_MASK(15, 8) |
| |
| #define VC4_HDMI_TX_PHY_PLL_CFG_PDIV_SHIFT 0 |
| #define VC4_HDMI_TX_PHY_PLL_CFG_PDIV_MASK VC4_MASK(3, 0) |
| |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TXCK_OUT_SEL_MASK VC4_MASK(13, 12) |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TXCK_OUT_SEL_SHIFT 12 |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX2_OUT_SEL_MASK VC4_MASK(9, 8) |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX2_OUT_SEL_SHIFT 8 |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX1_OUT_SEL_MASK VC4_MASK(5, 4) |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX1_OUT_SEL_SHIFT 4 |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX0_OUT_SEL_MASK VC4_MASK(1, 0) |
| #define VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX0_OUT_SEL_SHIFT 0 |
| |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT_MASK VC4_MASK(27, 0) |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT_SHIFT 0 |
| |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT_MASK VC4_MASK(27, 0) |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT_SHIFT 0 |
| |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_STABLE_THRESHOLD_MASK VC4_MASK(31, 16) |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_STABLE_THRESHOLD_SHIFT 16 |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_HOLD_THRESHOLD_MASK VC4_MASK(15, 0) |
| #define VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_HOLD_THRESHOLD_SHIFT 0 |
| |
| #define VC4_HDMI_RM_CONTROL_EN_FREEZE_COUNTERS BIT(19) |
| #define VC4_HDMI_RM_CONTROL_EN_LOAD_INTEGRATOR BIT(17) |
| #define VC4_HDMI_RM_CONTROL_FREE_RUN BIT(4) |
| |
| #define VC4_HDMI_RM_OFFSET_ONLY BIT(31) |
| #define VC4_HDMI_RM_OFFSET_OFFSET_SHIFT 0 |
| #define VC4_HDMI_RM_OFFSET_OFFSET_MASK VC4_MASK(30, 0) |
| |
| #define VC4_HDMI_RM_FORMAT_SHIFT_SHIFT 24 |
| #define VC4_HDMI_RM_FORMAT_SHIFT_MASK VC4_MASK(25, 24) |
| |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_BG_PWRUP BIT(8) |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_LDO_PWRUP BIT(7) |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_BIAS_PWRUP BIT(6) |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_RNDGEN_PWRUP BIT(4) |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_CK_PWRUP BIT(3) |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_2_PWRUP BIT(2) |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_1_PWRUP BIT(1) |
| #define VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_0_PWRUP BIT(0) |
| |
| #define VC6_HDMI_TX_PHY_PLL_REFCLK_REFCLK_SEL_CMOS BIT(13) |
| #define VC6_HDMI_TX_PHY_PLL_REFCLK_REFFRQ_MASK VC4_MASK(9, 0) |
| |
| #define VC6_HDMI_TX_PHY_PLL_POST_KDIV_CLK0_SEL_MASK VC4_MASK(3, 2) |
| #define VC6_HDMI_TX_PHY_PLL_POST_KDIV_KDIV_MASK VC4_MASK(1, 0) |
| |
| #define VC6_HDMI_TX_PHY_PLL_VCOCLK_DIV_VCODIV_EN BIT(10) |
| #define VC6_HDMI_TX_PHY_PLL_VCOCLK_DIV_VCODIV_MASK VC4_MASK(9, 0) |
| |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_CTL_MASK VC4_MASK(31, 28) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_ENABLE_MASK VC4_MASK(27, 27) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_RATE_CTL_MASK VC4_MASK(26, 26) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_POST_TAP_EN_MASK VC4_MASK(25, 25) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_LDMOS_BIAS_CTL_MASK VC4_MASK(24, 23) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_COM_MODE_LDMOS_EN_MASK VC4_MASK(22, 22) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EDGE_SEL_MASK VC4_MASK(21, 21) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_HS_EN_MASK VC4_MASK(20, 20) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_TERM_CTL_MASK VC4_MASK(19, 18) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_EN_MASK VC4_MASK(17, 17) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_EN_MASK VC4_MASK(16, 16) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_CTL_MASK VC4_MASK(15, 12) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_HS_EN_MASK VC4_MASK(11, 11) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_MAIN_TAP_CURRENT_SELECT_MASK VC4_MASK(10, 8) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_POST_TAP_CURRENT_SELECT_MASK VC4_MASK(7, 5) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_LOADING_MASK VC4_MASK(4, 3) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_DRIVING_MASK VC4_MASK(2, 1) |
| #define VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_PRE_TAP_EN_MASK VC4_MASK(0, 0) |
| |
| #define VC6_HDMI_TX_PHY_PLL_RESET_CTL_PLL_PLLPOST_RESETB BIT(1) |
| #define VC6_HDMI_TX_PHY_PLL_RESET_CTL_PLL_RESETB BIT(0) |
| |
| #define VC6_HDMI_TX_PHY_PLL_POWERUP_CTL_PLL_PWRUP BIT(0) |
| |
| #define OSCILLATOR_FREQUENCY 54000000 |
| |
| void vc4_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, |
| struct drm_connector_state *conn_state) |
| { |
| unsigned long flags; |
| |
| /* PHY should be in reset, like |
| * vc4_hdmi_encoder_disable() does. |
| */ |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16); |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0); |
| |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| void vc4_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0xf << 16); |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| void vc4_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| HDMI_WRITE(HDMI_TX_PHY_CTL_0, |
| HDMI_READ(HDMI_TX_PHY_CTL_0) & |
| ~VC4_HDMI_TX_PHY_RNG_PWRDN); |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| void vc4_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| HDMI_WRITE(HDMI_TX_PHY_CTL_0, |
| HDMI_READ(HDMI_TX_PHY_CTL_0) | |
| VC4_HDMI_TX_PHY_RNG_PWRDN); |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| static unsigned long long |
| phy_get_vco_freq(unsigned long long clock, u8 *vco_sel, u8 *vco_div) |
| { |
| unsigned long long vco_freq = clock; |
| unsigned int _vco_div = 0; |
| unsigned int _vco_sel = 0; |
| |
| while (vco_freq < 3000000000ULL) { |
| _vco_div++; |
| vco_freq = clock * _vco_div * 10; |
| } |
| |
| if (vco_freq > 4500000000ULL) |
| _vco_sel = 1; |
| |
| *vco_sel = _vco_sel; |
| *vco_div = _vco_div; |
| |
| return vco_freq; |
| } |
| |
| static u8 phy_get_cp_current(unsigned long vco_freq) |
| { |
| if (vco_freq < 3700000000ULL) |
| return 0x1c; |
| |
| return 0x18; |
| } |
| |
| static u32 phy_get_rm_offset(unsigned long long vco_freq) |
| { |
| unsigned long long fref = OSCILLATOR_FREQUENCY; |
| u64 offset = 0; |
| |
| /* RM offset is stored as 9.22 format */ |
| offset = vco_freq * 2; |
| offset = offset << 22; |
| do_div(offset, fref); |
| offset >>= 2; |
| |
| return offset; |
| } |
| |
| static u8 phy_get_vco_gain(unsigned long long vco_freq) |
| { |
| if (vco_freq < 3350000000ULL) |
| return 0xf; |
| |
| if (vco_freq < 3700000000ULL) |
| return 0xc; |
| |
| if (vco_freq < 4050000000ULL) |
| return 0x6; |
| |
| if (vco_freq < 4800000000ULL) |
| return 0x5; |
| |
| if (vco_freq < 5200000000ULL) |
| return 0x7; |
| |
| return 0x2; |
| } |
| |
| struct phy_lane_settings { |
| struct { |
| u8 preemphasis; |
| u8 main_driver; |
| } amplitude; |
| |
| u8 res_sel_data; |
| u8 term_res_sel_data; |
| }; |
| |
| struct phy_settings { |
| unsigned long long min_rate; |
| unsigned long long max_rate; |
| struct phy_lane_settings channel[3]; |
| struct phy_lane_settings clock; |
| }; |
| |
| static const struct phy_settings vc5_hdmi_phy_settings[] = { |
| { |
| 0, 50000000, |
| { |
| {{0x0, 0x0A}, 0x12, 0x0}, |
| {{0x0, 0x0A}, 0x12, 0x0}, |
| {{0x0, 0x0A}, 0x12, 0x0} |
| }, |
| {{0x0, 0x0A}, 0x18, 0x0}, |
| }, |
| { |
| 50000001, 75000000, |
| { |
| {{0x0, 0x09}, 0x12, 0x0}, |
| {{0x0, 0x09}, 0x12, 0x0}, |
| {{0x0, 0x09}, 0x12, 0x0} |
| }, |
| {{0x0, 0x0C}, 0x18, 0x3}, |
| }, |
| { |
| 75000001, 165000000, |
| { |
| {{0x0, 0x09}, 0x12, 0x0}, |
| {{0x0, 0x09}, 0x12, 0x0}, |
| {{0x0, 0x09}, 0x12, 0x0} |
| }, |
| {{0x0, 0x0C}, 0x18, 0x3}, |
| }, |
| { |
| 165000001, 250000000, |
| { |
| {{0x0, 0x0F}, 0x12, 0x1}, |
| {{0x0, 0x0F}, 0x12, 0x1}, |
| {{0x0, 0x0F}, 0x12, 0x1} |
| }, |
| {{0x0, 0x0C}, 0x18, 0x3}, |
| }, |
| { |
| 250000001, 340000000, |
| { |
| {{0x2, 0x0D}, 0x12, 0x1}, |
| {{0x2, 0x0D}, 0x12, 0x1}, |
| {{0x2, 0x0D}, 0x12, 0x1} |
| }, |
| {{0x0, 0x0C}, 0x18, 0xF}, |
| }, |
| { |
| 340000001, 450000000, |
| { |
| {{0x0, 0x1B}, 0x12, 0xF}, |
| {{0x0, 0x1B}, 0x12, 0xF}, |
| {{0x0, 0x1B}, 0x12, 0xF} |
| }, |
| {{0x0, 0x0A}, 0x12, 0xF}, |
| }, |
| { |
| 450000001, 600000000, |
| { |
| {{0x0, 0x1C}, 0x12, 0xF}, |
| {{0x0, 0x1C}, 0x12, 0xF}, |
| {{0x0, 0x1C}, 0x12, 0xF} |
| }, |
| {{0x0, 0x0B}, 0x13, 0xF}, |
| }, |
| }; |
| |
| static const struct phy_settings *phy_get_settings(unsigned long long tmds_rate) |
| { |
| unsigned int count = ARRAY_SIZE(vc5_hdmi_phy_settings); |
| unsigned int i; |
| |
| for (i = 0; i < count; i++) { |
| const struct phy_settings *s = &vc5_hdmi_phy_settings[i]; |
| |
| if (tmds_rate >= s->min_rate && tmds_rate <= s->max_rate) |
| return s; |
| } |
| |
| /* |
| * If the pixel clock exceeds our max setting, try the max |
| * setting anyway. |
| */ |
| return &vc5_hdmi_phy_settings[count - 1]; |
| } |
| |
| static const struct phy_lane_settings * |
| phy_get_channel_settings(enum vc4_hdmi_phy_channel chan, |
| unsigned long long tmds_rate) |
| { |
| const struct phy_settings *settings = phy_get_settings(tmds_rate); |
| |
| if (chan == PHY_LANE_CK) |
| return &settings->clock; |
| |
| return &settings->channel[chan]; |
| } |
| |
| static void vc5_hdmi_reset_phy(struct vc4_hdmi *vc4_hdmi) |
| { |
| lockdep_assert_held(&vc4_hdmi->hw_lock); |
| |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0x0f); |
| HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL, BIT(10)); |
| } |
| |
| void vc5_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, |
| struct drm_connector_state *conn_state) |
| { |
| const struct phy_lane_settings *chan0_settings, *chan1_settings, *chan2_settings, *clock_settings; |
| const struct vc4_hdmi_variant *variant = vc4_hdmi->variant; |
| unsigned long long pixel_freq = conn_state->hdmi.tmds_char_rate; |
| unsigned long long vco_freq; |
| unsigned char word_sel; |
| unsigned long flags; |
| u8 vco_sel, vco_div; |
| |
| vco_freq = phy_get_vco_freq(pixel_freq, &vco_sel, &vco_div); |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| |
| vc5_hdmi_reset_phy(vc4_hdmi); |
| |
| HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL, |
| VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN); |
| |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, |
| HDMI_READ(HDMI_TX_PHY_RESET_CTL) & |
| ~VC4_HDMI_TX_PHY_RESET_CTL_TX_0_RESET & |
| ~VC4_HDMI_TX_PHY_RESET_CTL_TX_1_RESET & |
| ~VC4_HDMI_TX_PHY_RESET_CTL_TX_2_RESET & |
| ~VC4_HDMI_TX_PHY_RESET_CTL_TX_CK_RESET); |
| |
| HDMI_WRITE(HDMI_RM_CONTROL, |
| HDMI_READ(HDMI_RM_CONTROL) | |
| VC4_HDMI_RM_CONTROL_EN_FREEZE_COUNTERS | |
| VC4_HDMI_RM_CONTROL_EN_LOAD_INTEGRATOR | |
| VC4_HDMI_RM_CONTROL_FREE_RUN); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1, |
| (HDMI_READ(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1) & |
| ~VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT_MASK) | |
| VC4_SET_FIELD(0, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_1_MIN_LIMIT)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2, |
| (HDMI_READ(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2) & |
| ~VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT_MASK) | |
| VC4_SET_FIELD(0, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_2_MAX_LIMIT)); |
| |
| HDMI_WRITE(HDMI_RM_OFFSET, |
| VC4_SET_FIELD(phy_get_rm_offset(vco_freq), |
| VC4_HDMI_RM_OFFSET_OFFSET) | |
| VC4_HDMI_RM_OFFSET_ONLY); |
| |
| HDMI_WRITE(HDMI_TX_PHY_CLK_DIV, |
| VC4_SET_FIELD(vco_div, VC4_HDMI_TX_PHY_CLK_DIV_VCO)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4, |
| VC4_SET_FIELD(0xe147, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_HOLD_THRESHOLD) | |
| VC4_SET_FIELD(0xe14, VC4_HDMI_TX_PHY_PLL_CALIBRATION_CONFIG_4_STABLE_THRESHOLD)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_CTL_0, |
| VC4_HDMI_TX_PHY_PLL_CTL_0_ENA_VCO_CLK | |
| VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_CONT_EN | |
| VC4_HDMI_TX_PHY_PLL_CTL_0_MASH11_MODE | |
| VC4_SET_FIELD(vco_sel, VC4_HDMI_TX_PHY_PLL_CTL_0_VCO_SEL)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_CTL_1, |
| HDMI_READ(HDMI_TX_PHY_PLL_CTL_1) | |
| VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_ENABLE | |
| VC4_SET_FIELD(3, VC4_HDMI_TX_PHY_PLL_CTL_1_POST_RST_SEL) | |
| VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_PLL_CTL_1_FREQ_DOUBLER_DELAY) | |
| VC4_SET_FIELD(0x8a, VC4_HDMI_TX_PHY_PLL_CTL_1_CPP)); |
| |
| HDMI_WRITE(HDMI_RM_FORMAT, |
| HDMI_READ(HDMI_RM_FORMAT) | |
| VC4_SET_FIELD(2, VC4_HDMI_RM_FORMAT_SHIFT)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_CFG, |
| HDMI_READ(HDMI_TX_PHY_PLL_CFG) | |
| VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_PLL_CFG_PDIV)); |
| |
| if (pixel_freq >= 340000000) |
| word_sel = 3; |
| else |
| word_sel = 0; |
| HDMI_WRITE(HDMI_TX_PHY_TMDS_CLK_WORD_SEL, word_sel); |
| |
| HDMI_WRITE(HDMI_TX_PHY_CTL_3, |
| VC4_SET_FIELD(phy_get_cp_current(vco_freq), |
| VC4_HDMI_TX_PHY_CTL_3_ICP) | |
| VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_CTL_3_CP) | |
| VC4_SET_FIELD(1, VC4_HDMI_TX_PHY_CTL_3_CP1) | |
| VC4_SET_FIELD(3, VC4_HDMI_TX_PHY_CTL_3_CZ) | |
| VC4_SET_FIELD(4, VC4_HDMI_TX_PHY_CTL_3_RP) | |
| VC4_SET_FIELD(6, VC4_HDMI_TX_PHY_CTL_3_RZ)); |
| |
| chan0_settings = |
| phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_0], |
| pixel_freq); |
| chan1_settings = |
| phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_1], |
| pixel_freq); |
| chan2_settings = |
| phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_2], |
| pixel_freq); |
| clock_settings = |
| phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_CK], |
| pixel_freq); |
| |
| HDMI_WRITE(HDMI_TX_PHY_CTL_0, |
| VC4_SET_FIELD(chan0_settings->amplitude.preemphasis, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_PREEMP) | |
| VC4_SET_FIELD(chan0_settings->amplitude.main_driver, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_0_MAINDRV) | |
| VC4_SET_FIELD(chan1_settings->amplitude.preemphasis, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_PREEMP) | |
| VC4_SET_FIELD(chan1_settings->amplitude.main_driver, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_1_MAINDRV) | |
| VC4_SET_FIELD(chan2_settings->amplitude.preemphasis, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_PREEMP) | |
| VC4_SET_FIELD(chan2_settings->amplitude.main_driver, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_2_MAINDRV) | |
| VC4_SET_FIELD(clock_settings->amplitude.preemphasis, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_PREEMP) | |
| VC4_SET_FIELD(clock_settings->amplitude.main_driver, |
| VC4_HDMI_TX_PHY_CTL_0_PREEMP_CK_MAINDRV)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_CTL_1, |
| HDMI_READ(HDMI_TX_PHY_CTL_1) | |
| VC4_SET_FIELD(chan0_settings->res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA0) | |
| VC4_SET_FIELD(chan1_settings->res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA1) | |
| VC4_SET_FIELD(chan2_settings->res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_1_RES_SEL_DATA2) | |
| VC4_SET_FIELD(clock_settings->res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_1_RES_SEL_CK)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_CTL_2, |
| VC4_SET_FIELD(chan0_settings->term_res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA0) | |
| VC4_SET_FIELD(chan1_settings->term_res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA1) | |
| VC4_SET_FIELD(chan2_settings->term_res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELDATA2) | |
| VC4_SET_FIELD(clock_settings->term_res_sel_data, |
| VC4_HDMI_TX_PHY_CTL_2_TERM_RES_SELCK) | |
| VC4_SET_FIELD(phy_get_vco_gain(vco_freq), |
| VC4_HDMI_TX_PHY_CTL_2_VCO_GAIN)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_CHANNEL_SWAP, |
| VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_0], |
| VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX0_OUT_SEL) | |
| VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_1], |
| VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX1_OUT_SEL) | |
| VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_2], |
| VC4_HDMI_TX_PHY_CHANNEL_SWAP_TX2_OUT_SEL) | |
| VC4_SET_FIELD(variant->phy_lane_mapping[PHY_LANE_CK], |
| VC4_HDMI_TX_PHY_CHANNEL_SWAP_TXCK_OUT_SEL)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, |
| HDMI_READ(HDMI_TX_PHY_RESET_CTL) & |
| ~(VC4_HDMI_TX_PHY_RESET_CTL_PLL_RESETB | |
| VC4_HDMI_TX_PHY_RESET_CTL_PLLDIV_RESETB)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, |
| HDMI_READ(HDMI_TX_PHY_RESET_CTL) | |
| VC4_HDMI_TX_PHY_RESET_CTL_PLL_RESETB | |
| VC4_HDMI_TX_PHY_RESET_CTL_PLLDIV_RESETB); |
| |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| void vc5_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| vc5_hdmi_reset_phy(vc4_hdmi); |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| void vc5_hdmi_phy_rng_enable(struct vc4_hdmi *vc4_hdmi) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL, |
| HDMI_READ(HDMI_TX_PHY_POWERDOWN_CTL) & |
| ~VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN); |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| void vc5_hdmi_phy_rng_disable(struct vc4_hdmi *vc4_hdmi) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| HDMI_WRITE(HDMI_TX_PHY_POWERDOWN_CTL, |
| HDMI_READ(HDMI_TX_PHY_POWERDOWN_CTL) | |
| VC4_HDMI_TX_PHY_POWERDOWN_CTL_RNDGEN_PWRDN); |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| #define VC6_VCO_MIN_FREQ (8ULL * 1000 * 1000 * 1000) |
| #define VC6_VCO_MAX_FREQ (12ULL * 1000 * 1000 * 1000) |
| |
| static unsigned long long |
| vc6_phy_get_vco_freq(unsigned long long tmds_rate, unsigned int *vco_div) |
| { |
| unsigned int min_div; |
| unsigned int max_div; |
| unsigned int div; |
| |
| div = 0; |
| while (tmds_rate * div * 10 < VC6_VCO_MIN_FREQ) |
| div++; |
| min_div = div; |
| |
| while (tmds_rate * (div + 1) * 10 < VC6_VCO_MAX_FREQ) |
| div++; |
| max_div = div; |
| |
| div = min_div + (max_div - min_div) / 2; |
| |
| *vco_div = div; |
| return tmds_rate * div * 10; |
| } |
| |
| struct vc6_phy_lane_settings { |
| unsigned int ext_current_ctl:4; |
| unsigned int ffe_enable:1; |
| unsigned int slew_rate_ctl:1; |
| unsigned int ffe_post_tap_en:1; |
| unsigned int ldmos_bias_ctl:2; |
| unsigned int com_mode_ldmos_en:1; |
| unsigned int edge_sel:1; |
| unsigned int ext_current_src_hs_en:1; |
| unsigned int term_ctl:2; |
| unsigned int ext_current_src_en:1; |
| unsigned int int_current_src_en:1; |
| unsigned int int_current_ctl:4; |
| unsigned int int_current_src_hs_en:1; |
| unsigned int main_tap_current_select:3; |
| unsigned int post_tap_current_select:3; |
| unsigned int slew_ctl_slow_loading:2; |
| unsigned int slew_ctl_slow_driving:2; |
| unsigned int ffe_pre_tap_en:1; |
| }; |
| |
| struct vc6_phy_settings { |
| unsigned long long min_rate; |
| unsigned long long max_rate; |
| struct vc6_phy_lane_settings channel[3]; |
| struct vc6_phy_lane_settings clock; |
| }; |
| |
| static const struct vc6_phy_settings vc6_hdmi_phy_settings[] = { |
| { |
| 0, 222000000, |
| { |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| }, |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| }, |
| { |
| 222000001, 297000000, |
| { |
| { |
| /* 200mA and 180mA ?! */ |
| .ext_current_ctl = 12, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* 100 Ohm */ |
| .term_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| }, |
| { |
| /* 200mA and 180mA ?! */ |
| .ext_current_ctl = 12, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* 100 Ohm */ |
| .term_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| }, |
| { |
| /* 200mA and 180mA ?! */ |
| .ext_current_ctl = 12, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* 100 Ohm */ |
| .term_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| }, |
| }, |
| { |
| /* 200mA and 180mA ?! */ |
| .ext_current_ctl = 12, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* 100 Ohm */ |
| .term_ctl = 1, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| |
| /* Internal Current Source Half Swing Enable*/ |
| .int_current_src_hs_en = 1, |
| }, |
| }, |
| { |
| 297000001, 597000044, |
| { |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* Normal Slew Rate Control */ |
| .slew_rate_ctl = 1, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* 50 Ohms */ |
| .term_ctl = 3, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* Normal Slew Rate Control */ |
| .slew_rate_ctl = 1, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* 50 Ohms */ |
| .term_ctl = 3, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* Normal Slew Rate Control */ |
| .slew_rate_ctl = 1, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* 50 Ohms */ |
| .term_ctl = 3, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| }, |
| { |
| /* 200mA */ |
| .ext_current_ctl = 8, |
| |
| /* Normal Slew Rate Control */ |
| .slew_rate_ctl = 1, |
| |
| /* 0.85V */ |
| .ldmos_bias_ctl = 1, |
| |
| /* External Current Source Half Swing Enable*/ |
| .ext_current_src_hs_en = 1, |
| |
| /* 50 Ohms */ |
| .term_ctl = 3, |
| |
| /* Enable External Current Source */ |
| .ext_current_src_en = 1, |
| |
| /* Enable Internal Current Source */ |
| .int_current_src_en = 1, |
| |
| /* 200mA */ |
| .int_current_ctl = 8, |
| |
| /* Internal Current Source Half Swing Enable*/ |
| .int_current_src_hs_en = 1, |
| |
| /* 17.6 mA */ |
| .main_tap_current_select = 7, |
| }, |
| }, |
| }; |
| |
| static const struct vc6_phy_settings * |
| vc6_phy_get_settings(unsigned long long tmds_rate) |
| { |
| unsigned int count = ARRAY_SIZE(vc6_hdmi_phy_settings); |
| unsigned int i; |
| |
| for (i = 0; i < count; i++) { |
| const struct vc6_phy_settings *s = &vc6_hdmi_phy_settings[i]; |
| |
| if (tmds_rate >= s->min_rate && tmds_rate <= s->max_rate) |
| return s; |
| } |
| |
| /* |
| * If the pixel clock exceeds our max setting, try the max |
| * setting anyway. |
| */ |
| return &vc6_hdmi_phy_settings[count - 1]; |
| } |
| |
| static const struct vc6_phy_lane_settings * |
| vc6_phy_get_channel_settings(enum vc4_hdmi_phy_channel chan, |
| unsigned long long tmds_rate) |
| { |
| const struct vc6_phy_settings *settings = vc6_phy_get_settings(tmds_rate); |
| |
| if (chan == PHY_LANE_CK) |
| return &settings->clock; |
| |
| return &settings->channel[chan]; |
| } |
| |
| static void vc6_hdmi_reset_phy(struct vc4_hdmi *vc4_hdmi) |
| { |
| lockdep_assert_held(&vc4_hdmi->hw_lock); |
| |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0); |
| HDMI_WRITE(HDMI_TX_PHY_POWERUP_CTL, 0); |
| } |
| |
| void vc6_hdmi_phy_init(struct vc4_hdmi *vc4_hdmi, |
| struct drm_connector_state *conn_state) |
| { |
| const struct vc6_phy_lane_settings *chan0_settings; |
| const struct vc6_phy_lane_settings *chan1_settings; |
| const struct vc6_phy_lane_settings *chan2_settings; |
| const struct vc6_phy_lane_settings *clock_settings; |
| const struct vc4_hdmi_variant *variant = vc4_hdmi->variant; |
| unsigned long long pixel_freq = conn_state->hdmi.tmds_char_rate; |
| unsigned long long vco_freq; |
| unsigned char word_sel; |
| unsigned long flags; |
| unsigned int vco_div; |
| |
| vco_freq = vc6_phy_get_vco_freq(pixel_freq, &vco_div); |
| |
| spin_lock_irqsave(&vc4_hdmi->hw_lock, flags); |
| |
| vc6_hdmi_reset_phy(vc4_hdmi); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_0, 0x810c6000); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_1, 0x00b8c451); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_2, 0x46402e31); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_3, 0x00b8c005); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_4, 0x42410261); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_5, 0xcc021001); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_6, 0xc8301c80); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_7, 0xb0804444); |
| HDMI_WRITE(HDMI_TX_PHY_PLL_MISC_8, 0xf80f8000); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_REFCLK, |
| VC6_HDMI_TX_PHY_PLL_REFCLK_REFCLK_SEL_CMOS | |
| VC4_SET_FIELD(54, VC6_HDMI_TX_PHY_PLL_REFCLK_REFFRQ)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_RESET_CTL, 0x7f); |
| |
| HDMI_WRITE(HDMI_RM_OFFSET, |
| VC4_HDMI_RM_OFFSET_ONLY | |
| VC4_SET_FIELD(phy_get_rm_offset(vco_freq), |
| VC4_HDMI_RM_OFFSET_OFFSET)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_VCOCLK_DIV, |
| VC6_HDMI_TX_PHY_PLL_VCOCLK_DIV_VCODIV_EN | |
| VC4_SET_FIELD(vco_div, |
| VC6_HDMI_TX_PHY_PLL_VCOCLK_DIV_VCODIV)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_CFG, |
| VC4_SET_FIELD(0, VC4_HDMI_TX_PHY_PLL_CFG_PDIV)); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_POST_KDIV, |
| VC4_SET_FIELD(2, VC6_HDMI_TX_PHY_PLL_POST_KDIV_CLK0_SEL) | |
| VC4_SET_FIELD(1, VC6_HDMI_TX_PHY_PLL_POST_KDIV_KDIV)); |
| |
| chan0_settings = |
| vc6_phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_0], |
| pixel_freq); |
| HDMI_WRITE(HDMI_TX_PHY_CTL_0, |
| VC4_SET_FIELD(chan0_settings->ext_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_CTL) | |
| VC4_SET_FIELD(chan0_settings->ffe_enable, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_ENABLE) | |
| VC4_SET_FIELD(chan0_settings->slew_rate_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_RATE_CTL) | |
| VC4_SET_FIELD(chan0_settings->ffe_post_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_POST_TAP_EN) | |
| VC4_SET_FIELD(chan0_settings->ldmos_bias_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_LDMOS_BIAS_CTL) | |
| VC4_SET_FIELD(chan0_settings->com_mode_ldmos_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_COM_MODE_LDMOS_EN) | |
| VC4_SET_FIELD(chan0_settings->edge_sel, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EDGE_SEL) | |
| VC4_SET_FIELD(chan0_settings->ext_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(chan0_settings->term_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_TERM_CTL) | |
| VC4_SET_FIELD(chan0_settings->ext_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(chan0_settings->int_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(chan0_settings->int_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_CTL) | |
| VC4_SET_FIELD(chan0_settings->int_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(chan0_settings->main_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_MAIN_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(chan0_settings->post_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_POST_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(chan0_settings->slew_ctl_slow_loading, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_LOADING) | |
| VC4_SET_FIELD(chan0_settings->slew_ctl_slow_driving, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_DRIVING) | |
| VC4_SET_FIELD(chan0_settings->ffe_pre_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_PRE_TAP_EN)); |
| |
| chan1_settings = |
| vc6_phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_1], |
| pixel_freq); |
| HDMI_WRITE(HDMI_TX_PHY_CTL_1, |
| VC4_SET_FIELD(chan1_settings->ext_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_CTL) | |
| VC4_SET_FIELD(chan1_settings->ffe_enable, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_ENABLE) | |
| VC4_SET_FIELD(chan1_settings->slew_rate_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_RATE_CTL) | |
| VC4_SET_FIELD(chan1_settings->ffe_post_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_POST_TAP_EN) | |
| VC4_SET_FIELD(chan1_settings->ldmos_bias_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_LDMOS_BIAS_CTL) | |
| VC4_SET_FIELD(chan1_settings->com_mode_ldmos_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_COM_MODE_LDMOS_EN) | |
| VC4_SET_FIELD(chan1_settings->edge_sel, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EDGE_SEL) | |
| VC4_SET_FIELD(chan1_settings->ext_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(chan1_settings->term_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_TERM_CTL) | |
| VC4_SET_FIELD(chan1_settings->ext_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(chan1_settings->int_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(chan1_settings->int_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_CTL) | |
| VC4_SET_FIELD(chan1_settings->int_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(chan1_settings->main_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_MAIN_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(chan1_settings->post_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_POST_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(chan1_settings->slew_ctl_slow_loading, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_LOADING) | |
| VC4_SET_FIELD(chan1_settings->slew_ctl_slow_driving, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_DRIVING) | |
| VC4_SET_FIELD(chan1_settings->ffe_pre_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_PRE_TAP_EN)); |
| |
| chan2_settings = |
| vc6_phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_2], |
| pixel_freq); |
| HDMI_WRITE(HDMI_TX_PHY_CTL_2, |
| VC4_SET_FIELD(chan2_settings->ext_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_CTL) | |
| VC4_SET_FIELD(chan2_settings->ffe_enable, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_ENABLE) | |
| VC4_SET_FIELD(chan2_settings->slew_rate_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_RATE_CTL) | |
| VC4_SET_FIELD(chan2_settings->ffe_post_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_POST_TAP_EN) | |
| VC4_SET_FIELD(chan2_settings->ldmos_bias_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_LDMOS_BIAS_CTL) | |
| VC4_SET_FIELD(chan2_settings->com_mode_ldmos_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_COM_MODE_LDMOS_EN) | |
| VC4_SET_FIELD(chan2_settings->edge_sel, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EDGE_SEL) | |
| VC4_SET_FIELD(chan2_settings->ext_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(chan2_settings->term_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_TERM_CTL) | |
| VC4_SET_FIELD(chan2_settings->ext_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(chan2_settings->int_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(chan2_settings->int_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_CTL) | |
| VC4_SET_FIELD(chan2_settings->int_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(chan2_settings->main_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_MAIN_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(chan2_settings->post_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_POST_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(chan2_settings->slew_ctl_slow_loading, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_LOADING) | |
| VC4_SET_FIELD(chan2_settings->slew_ctl_slow_driving, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_DRIVING) | |
| VC4_SET_FIELD(chan2_settings->ffe_pre_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_PRE_TAP_EN)); |
| |
| clock_settings = |
| vc6_phy_get_channel_settings(variant->phy_lane_mapping[PHY_LANE_CK], |
| pixel_freq); |
| HDMI_WRITE(HDMI_TX_PHY_CTL_CK, |
| VC4_SET_FIELD(clock_settings->ext_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_CTL) | |
| VC4_SET_FIELD(clock_settings->ffe_enable, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_ENABLE) | |
| VC4_SET_FIELD(clock_settings->slew_rate_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_RATE_CTL) | |
| VC4_SET_FIELD(clock_settings->ffe_post_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_POST_TAP_EN) | |
| VC4_SET_FIELD(clock_settings->ldmos_bias_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_LDMOS_BIAS_CTL) | |
| VC4_SET_FIELD(clock_settings->com_mode_ldmos_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_COM_MODE_LDMOS_EN) | |
| VC4_SET_FIELD(clock_settings->edge_sel, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EDGE_SEL) | |
| VC4_SET_FIELD(clock_settings->ext_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(clock_settings->term_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_TERM_CTL) | |
| VC4_SET_FIELD(clock_settings->ext_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_EXT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(clock_settings->int_current_src_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_EN) | |
| VC4_SET_FIELD(clock_settings->int_current_ctl, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_CTL) | |
| VC4_SET_FIELD(clock_settings->int_current_src_hs_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_INT_CURRENT_SRC_HS_EN) | |
| VC4_SET_FIELD(clock_settings->main_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_MAIN_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(clock_settings->post_tap_current_select, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_POST_TAP_CURRENT_SELECT) | |
| VC4_SET_FIELD(clock_settings->slew_ctl_slow_loading, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_LOADING) | |
| VC4_SET_FIELD(clock_settings->slew_ctl_slow_driving, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_SLEW_CTL_SLOW_DRIVING) | |
| VC4_SET_FIELD(clock_settings->ffe_pre_tap_en, |
| VC6_HDMI_TX_PHY_HDMI_CTRL_CHX_FFE_PRE_TAP_EN)); |
| |
| if (pixel_freq >= 340000000) |
| word_sel = 3; |
| else |
| word_sel = 0; |
| HDMI_WRITE(HDMI_TX_PHY_TMDS_CLK_WORD_SEL, word_sel); |
| |
| HDMI_WRITE(HDMI_TX_PHY_POWERUP_CTL, |
| VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_BG_PWRUP | |
| VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_LDO_PWRUP | |
| VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_BIAS_PWRUP | |
| VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_CK_PWRUP | |
| VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_2_PWRUP | |
| VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_1_PWRUP | |
| VC6_HDMI_TX_PHY_HDMI_POWERUP_CTL_TX_0_PWRUP); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_POWERUP_CTL, |
| VC6_HDMI_TX_PHY_PLL_POWERUP_CTL_PLL_PWRUP); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_RESET_CTL, |
| HDMI_READ(HDMI_TX_PHY_PLL_RESET_CTL) & |
| ~VC6_HDMI_TX_PHY_PLL_RESET_CTL_PLL_RESETB); |
| |
| HDMI_WRITE(HDMI_TX_PHY_PLL_RESET_CTL, |
| HDMI_READ(HDMI_TX_PHY_PLL_RESET_CTL) | |
| VC6_HDMI_TX_PHY_PLL_RESET_CTL_PLL_RESETB); |
| |
| spin_unlock_irqrestore(&vc4_hdmi->hw_lock, flags); |
| } |
| |
| void vc6_hdmi_phy_disable(struct vc4_hdmi *vc4_hdmi) |
| { |
| } |
