diff options
Diffstat (limited to 'src/mainboard/siemens')
29 files changed, 476 insertions, 1193 deletions
diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Kconfig b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Kconfig index 76d62fcf20..8b10a74ab5 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Kconfig +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Kconfig @@ -8,5 +8,6 @@ config BOARD_SPECIFIC_OPTIONS select DRIVER_SIEMENS_NC_FPGA select NC_FPGA_NOTIFY_CB_READY select APL_SKIP_SET_POWER_LIMITS + select DRIVERS_I2C_PTN3460 endif # BOARD_SIEMENS_MC_APL1 diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc index adf9aff0d4..81633a1d93 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/Makefile.inc @@ -1,2 +1,2 @@ ramstage-y += mainboard.c -ramstage-y += ptn3460.c +ramstage-y += lcd_panel.c diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/devicetree.cb b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/devicetree.cb index d65ac4e0a4..0e72fcf743 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/devicetree.cb +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/devicetree.cb @@ -93,6 +93,10 @@ chip soc/intel/apollolake register "user_weekday" = "4" device i2c 0x32 on end # RTC RX6110 SA end + # Enable external display bridge (eDP to LVDS) + chip drivers/i2c/ptn3460 + device i2c 0x20 on end # PTN3460 DP2LVDS Bridge + end end device pci 16.1 off end # - I2C 1 device pci 16.2 off end # - I2C 2 diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/include/variant/ptn3460.h b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/include/variant/ptn3460.h deleted file mode 100644 index 3ff35d9ee8..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/include/variant/ptn3460.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2017 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef PTN3460_H_ -#define PTN3460_H_ - -#include <stdint.h> - -#define PTN_SLAVE_ADR 0x20 -#define PTN_I2C_CONTROLLER 0 - -#define PTN_EDID_OFF 0x00 -#define PTN_EDID_LEN 0x80 -#define PTN_CONFIG_OFF 0x80 -#define PTN_FLASH_CFG_OFF 0xE8 -#define PTN_FLASH_CFG_LEN 0x04 -#define PTN_MAX_EDID_NUM 6 - -/* Define some error codes that can be used. */ -#define PTN_NO_ERROR 0x00000000 -#define PTN_BUS_ERROR 0x10000000 -#define PTN_INVALID_EDID 0x20000000 - -struct ptn_3460_config { - /* DisplayPort interface control. */ - uint8_t dp_interface_ctrl; - /* LVDS interface control register 1. */ - uint8_t lvds_interface_ctrl1; - /* LVDS interface control register 2. */ - uint8_t lvds_interface_ctrl2; - /* LVDS interface control register 3. */ - uint8_t lvds_interface_ctrl3; - /* Select which EDID-block is emulated. */ - uint8_t edid_rom_emulation; - /* Select which EDID block to map to 0..0x7F. */ - uint8_t edid_rom_access_ctrl; - /* Smallest PWM frequency for back light. */ - uint8_t pwm_min[3]; - /* Biggest PWM frequency for back light. */ - uint8_t pwm_max[3]; - /* Fast link training control register. */ - uint8_t fast_link_ctrl; - /* Pin configuration control register 1. */ - uint8_t pin_cfg_ctrl1; - /* Pin configuration control register 2. */ - uint8_t pin_cfg_ctrl2; - /* Default PWM bit count in DPCD register. */ - uint8_t pwm_default; - /* Current PWM bit count in DPCD register. */ - uint16_t pwm_value; - /* Default PWM frequency in DPCD register. */ - uint8_t pwm_default_freq; - /* Panel T3 timing value. */ - uint8_t t3_timing; - /* Panel T12 timing value. */ - uint8_t t12_timing; - /* Back light control register. */ - uint8_t backlight_ctrl; - /* Panel T2 delay. */ - uint8_t t2_delay; - /* Panel T4 timing value. */ - uint8_t t4_timing; - /* Panel T5 delay. */ - uint8_t t5_delay; -} __packed; - -struct ptn_3460_flash { - /* Flash command (erase or erase and flash). */ - uint8_t cmd; - /* Magic number needed by the flash algorithm. */ - uint16_t magic; - /* Trigger for starting flash operation. */ - uint8_t trigger; -} __packed; - -int ptn3460_init(const char *hwi_block); -int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]); -int ptn_select_edid(uint8_t edid_num); -#endif /* PTN3460_H_ */ diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/lcd_panel.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/lcd_panel.c new file mode 100644 index 0000000000..e61588a02e --- /dev/null +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/lcd_panel.c @@ -0,0 +1,102 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014-2019 Siemens AG + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <console/console.h> +#include <device/device.h> +#include <drivers/i2c/ptn3460/ptn3460.h> +#include <hwilib.h> +#include <types.h> + +/** \brief This function provides EDID data to the driver for DP2LVDS Bridge (PTN3460) + * @param edid_data pointer to EDID data in driver +*/ +enum cb_err mb_get_edid(uint8_t edid_data[0x80]) +{ + const char *hwi_block = "hwinfo.hex"; + + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return CB_ERR; + } + + /* Get EDID data from hwinfo block */ + if (hwilib_get_field(Edid, edid_data, PTN_EDID_LEN) != PTN_EDID_LEN) { + printk(BIOS_ERR, "LCD: No EDID data available in %s\n", hwi_block); + return CB_ERR; + } + return CB_SUCCESS; +} + +/** \brief This function provides EDID block [0..6] to the driver for DP2LVDS Bridge (PTN3460) + * which has to be used. +*/ +uint8_t mb_select_edid_table(void) +{ + return 6; /* With this mainboard we use EDID block 6 for emulation in PTN3460. */ +} + +/** \brief Function to enable mainboard to adjust the config data of PTN3460. + * @param *cfg_ptr Pointer to the PTN config structure to modify. + * @return -1 on error; PTN_CFG_MODIFIED if data was modified and needs to be updated. +*/ +int mb_adjust_cfg(struct ptn_3460_config *cfg) +{ + const char *hwi_block = "hwinfo.hex"; + uint8_t disp_con = 0, color_depth = 0; + + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return -1; + } + + if (hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != sizeof(disp_con)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + if (hwilib_get_field(PF_Color_Depth, &color_depth, + sizeof(color_depth)) != sizeof(color_depth)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + /* Set up configuration data according to the hwinfo block we got. */ + cfg->dp_interface_ctrl = 0x00; + cfg->lvds_interface_ctrl1 = 0x00; + if (disp_con == PF_DISPLCON_LVDS_DUAL) { + /* Turn on dual LVDS lane and clock. */ + cfg->lvds_interface_ctrl1 |= 0x0b; + } + if (color_depth == PF_COLOR_DEPTH_6BIT) { + /* Use 18 bits per pixel. */ + cfg->lvds_interface_ctrl1 |= 0x20; + } + /* 1 % clock spreading, 300 mV LVDS swing. */ + cfg->lvds_interface_ctrl2 = 0x13; + /* No LVDS lane swap. */ + cfg->lvds_interface_ctrl3 = 0x00; + /* Delay T2 (VDD to LVDS active) by 16 ms. */ + cfg->t2_delay = 1; + /* 500 ms from LVDS to backlight active. */ + cfg->t3_timing = 10; + /* 1 second re-power delay. */ + cfg->t12_timing = 20; + /* 150 ms backlight off to LVDS inactive. */ + cfg->t4_timing = 3; + /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ + cfg->t5_delay = 1; + /* Enable backlight control. */ + cfg->backlight_ctrl = 0; + + return PTN_CFG_MODIFIED; +} diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/mainboard.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/mainboard.c index df6fc21bde..f119d5d19b 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/mainboard.c +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/mainboard.c @@ -26,26 +26,14 @@ #include <timestamp.h> #include <baseboard/variants.h> #include <types.h> -#include <variant/ptn3460.h> #define TX_DWORD3 0xa8c void variant_mainboard_final(void) { - int status; struct device *dev = NULL; /* - * Set up the DP2LVDS converter. - * ptn3460_init() may only be executed after i2c bus init. - */ - status = ptn3460_init("hwinfo.hex"); - if (status) - printk(BIOS_ERR, "LCD: Set up PTN with status 0x%x\n", status); - else - printk(BIOS_INFO, "LCD: Set up PTN was successful.\n"); - - /* * PIR6 register mapping for PCIe root ports * INTA#->PIRQB#, INTB#->PIRQC#, INTC#->PIRQD#, INTD#-> PIRQA# */ diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/ptn3460.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl1/ptn3460.c deleted file mode 100644 index c0770f3124..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl1/ptn3460.c +++ /dev/null @@ -1,171 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2017 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <console/console.h> -#include <hwilib.h> -#include <device/i2c_simple.h> -#include <types.h> -#include <variant/ptn3460.h> - -/** - * This function sets up the DP2LVDS-converter to be used with the appropriate - * lcd panel. - * - * @param *hwi_block Filename in CBFS of the block to use as HW-Info. - * @return 0 on success or HWI-Data/PTN error code. - */ -int ptn3460_init(const char *hwi_block) -{ - struct ptn_3460_config cfg; - int status; - uint8_t disp_con = 0, color_depth = 0; - uint8_t edid_data[PTN_EDID_LEN]; - int i; - - if (!hwi_block || hwilib_find_blocks(hwi_block) != CB_SUCCESS) { - printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", - hwi_block); - return 1; - } - /* Get all needed information from hwinfo block. */ - if (hwilib_get_field(Edid, edid_data, sizeof(edid_data)) != - sizeof(edid_data)) { - printk(BIOS_ERR, "LCD: No EDID data available in %s\n", - hwi_block); - return 1; - } - if ((hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != - sizeof(disp_con))) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - if (hwilib_get_field(PF_Color_Depth, &color_depth, sizeof(color_depth)) - != sizeof(color_depth)) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - /* - * Here, all the desired information for setting up DP2LVDS converter - * is present. Inside the converter, table 6 will be used for the - * timings. - */ - status = ptn3460_write_edid(6, edid_data); - if (status) - return status; - /* Select this table to be emulated. */ - ptn_select_edid(6); - /* Read PTN configuration data. */ - status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF, (uint8_t *)&cfg, - sizeof(cfg)); - if (status) - return (PTN_BUS_ERROR | status); - /* Set up configuration data according to the hwinfo block we get. */ - cfg.dp_interface_ctrl = 0; - cfg.lvds_interface_ctrl1 = 0x00; - if (disp_con == PF_DISPLCON_LVDS_DUAL) - /* Turn on dual LVDS lane and clock. */ - cfg.lvds_interface_ctrl1 |= 0x0b; - if (color_depth == PF_COLOR_DEPTH_6BIT) - /* Use 18 bits per pixel. */ - cfg.lvds_interface_ctrl1 |= 0x20; - - /* 1 % clock spreading, 300 mV LVDS swing. */ - cfg.lvds_interface_ctrl2 = 0x13; - /* No LVDS signal swap. */ - cfg.lvds_interface_ctrl3 = 0x00; - /* Delay T2 (VDD to LVDS active) by 16 ms. */ - cfg.t2_delay = 1; - /* 250 ms from LVDS to backlight active. */ - cfg.t3_timing = 10; - /* 1 second re-power delay. */ - cfg.t12_timing = 20; - /* 150 ms backlight off to LVDS inactive. */ - cfg.t4_timing = 3; - /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ - cfg.t5_delay = 1; - /* Enable backlight control. */ - cfg.backlight_ctrl = 0; - - /* Write back configuration data to PTN3460. */ - for (i = 0; i < sizeof(struct ptn_3460_config); i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF+i, - *(((uint8_t *)&cfg)+i)); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/** - * This function writes one Extended Display Identification Data (EDID) - * structure to PTN3460. - * - * @param edid_num Number of EDID that must be written (0..6). - * @param *data Pointer to a buffer where data to write is stored in. - * @return 0 on success or error code. - */ -int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]) -{ - int status; - int i; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - - /* First enable access to the desired EDID table. */ - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 5, edid_num); - if (status) - return (PTN_BUS_ERROR | status); - - /* Now we can simply write EDID-data to ptn3460. */ - for (i = 0; i < PTN_EDID_LEN; i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_EDID_OFF + i, data[i]); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/** - * This function selects one of 7 EDID-tables inside PTN3460 which should be - * emulated on DisplayPort and turn emulation ON. - * - * @param edid_num Number of EDID to emulate (0..6). - * @return 0 on success or error code. - */ -int ptn_select_edid(uint8_t edid_num) -{ - int status; - uint8_t val; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - /* Enable emulation of the desired EDID table. */ - val = (edid_num << 1) | 1; - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 4, val); - if (status) - return (PTN_BUS_ERROR | status); - else - return PTN_NO_ERROR; -} diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig index 31317b9280..b10bdc846b 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Kconfig @@ -8,6 +8,7 @@ config BOARD_SPECIFIC_OPTIONS select MAINBOARD_HAS_TPM2 select MAINBOARD_HAS_LPC_TPM select TPM_ON_FAST_SPI + select DRIVERS_I2C_PTN3460 config UART_FOR_CONSOLE default 1 diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc index 482abf83dc..b1e6a0f74f 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/Makefile.inc @@ -2,5 +2,4 @@ romstage-y += memory.c romstage-y += gpio.c ramstage-y += gpio.c -ramstage-y += mainboard.c -ramstage-y += ptn3460.c +ramstage-y += lcd_panel.c diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/devicetree.cb b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/devicetree.cb index fc9885ce7f..4074bae3bc 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/devicetree.cb +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/devicetree.cb @@ -75,7 +75,12 @@ chip soc/intel/apollolake device pci 17.0 on end # - I2C 4 device pci 17.1 on end # - I2C 5 device pci 17.2 on end # - I2C 6 - device pci 17.3 on end # - I2C 7 + device pci 17.3 on # - I2C 7 + # Enable external display bridge (eDP to LVDS) + chip drivers/i2c/ptn3460 + device i2c 0x60 on end # PTN3460 DP2LVDS Bridge + end + end device pci 18.0 on end # - UART 0 device pci 18.1 on end # - UART 1 device pci 18.2 on end # - UART 2 diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/include/variant/ptn3460.h b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/include/variant/ptn3460.h deleted file mode 100644 index 2a52bf5e02..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/include/variant/ptn3460.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2018 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef PTN3460_H_ -#define PTN3460_H_ - -#include <stdint.h> - -#define PTN_SLAVE_ADR 0x60 -#define PTN_I2C_CONTROLLER 7 - -#define PTN_EDID_OFF 0x00 -#define PTN_EDID_LEN 0x80 -#define PTN_CONFIG_OFF 0x80 -#define PTN_FLASH_CFG_OFF 0xE8 -#define PTN_FLASH_CFG_LEN 0x04 -#define PTN_MAX_EDID_NUM 6 - -/* Define some error codes that can be used. */ -#define PTN_NO_ERROR 0x00000000 -#define PTN_BUS_ERROR 0x10000000 -#define PTN_INVALID_EDID 0x20000000 - -struct ptn_3460_config { - /* DisplayPort interface control. */ - uint8_t dp_interface_ctrl; - /* LVDS interface control register 1. */ - uint8_t lvds_interface_ctrl1; - /* LVDS interface control register 2. */ - uint8_t lvds_interface_ctrl2; - /* LVDS interface control register 3. */ - uint8_t lvds_interface_ctrl3; - /* Select which EDID-block is emulated. */ - uint8_t edid_rom_emulation; - /* Select which EDID block to map to 0..0x7F. */ - uint8_t edid_rom_access_ctrl; - /* Smallest PWM frequency for back light. */ - uint8_t pwm_min[3]; - /* Biggest PWM frequency for back light. */ - uint8_t pwm_max[3]; - /* Fast link training control register. */ - uint8_t fast_link_ctrl; - /* Pin configuration control register 1. */ - uint8_t pin_cfg_ctrl1; - /* Pin configuration control register 2. */ - uint8_t pin_cfg_ctrl2; - /* Default PWM bit count in DPCD register. */ - uint8_t pwm_default; - /* Current PWM bit count in DPCD register. */ - uint16_t pwm_value; - /* Default PWM frequency in DPCD register. */ - uint8_t pwm_default_freq; - /* Panel T3 timing value. */ - uint8_t t3_timing; - /* Panel T12 timing value. */ - uint8_t t12_timing; - /* Back light control register. */ - uint8_t backlight_ctrl; - /* Panel T2 delay. */ - uint8_t t2_delay; - /* Panel T4 timing value. */ - uint8_t t4_timing; - /* Panel T5 delay. */ - uint8_t t5_delay; -} __packed; - -struct ptn_3460_flash { - /* Flash command (erase or erase and flash). */ - uint8_t cmd; - /* Magic number needed by the flash algorithm. */ - uint16_t magic; - /* Trigger for starting flash operation. */ - uint8_t trigger; -} __packed; - -int ptn3460_init(const char *hwi_block); -int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]); -int ptn_select_edid(uint8_t edid_num); -#endif /* PTN3460_H_ */ diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/lcd_panel.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/lcd_panel.c new file mode 100644 index 0000000000..abfcfe37a8 --- /dev/null +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/lcd_panel.c @@ -0,0 +1,103 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014-2019 Siemens AG + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <console/console.h> +#include <device/device.h> +#include <drivers/i2c/ptn3460/ptn3460.h> +#include <hwilib.h> +#include <types.h> + +/** \brief This function provides EDID data to the driver for DP2LVDS Bridge (PTN3460) + * @param edid_data pointer to EDID data in driver +*/ +enum cb_err mb_get_edid(uint8_t edid_data[0x80]) +{ + const char *hwi_block = "hwinfo.hex"; + + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return CB_ERR; + } + + /* Get EDID data from hwinfo block */ + if (hwilib_get_field(Edid, edid_data, PTN_EDID_LEN) != PTN_EDID_LEN) { + printk(BIOS_ERR, "LCD: No EDID data available in %s\n", hwi_block); + return CB_ERR; + } + return CB_SUCCESS; +} + +/** \brief This function provides EDID block [0..6] to the driver for DP2LVDS Bridge (PTN3460) + * which has to be used. +*/ +uint8_t mb_select_edid_table(void) +{ + return 6; /* With this mainboard we use EDID block 6 for emulation in PTN3460. */ +} + +/** \brief Function to enable mainboard to adjust the config data of PTN3460. + * @param *cfg_ptr Pointer to the PTN config structure to modify. + * @return -1 on error; PTN_CFG_MODIFIED if data was modified and needs to be updated. +*/ +int mb_adjust_cfg(struct ptn_3460_config *cfg) +{ + const char *hwi_block = "hwinfo.hex"; + uint8_t disp_con = 0, color_depth = 0; + + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return -1; + } + + if (hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != sizeof(disp_con)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + if (hwilib_get_field(PF_Color_Depth, &color_depth, + sizeof(color_depth)) != sizeof(color_depth)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + /* Set up configuration data according to the hwinfo block we got. */ + cfg->dp_interface_ctrl = 0x00; + /* Use odd-bus for clock distribution only. */ + cfg->lvds_interface_ctrl1 = 0x01; + if (disp_con == PF_DISPLCON_LVDS_DUAL) { + /* Turn on dual LVDS lane and clock. */ + cfg->lvds_interface_ctrl1 |= 0x0b; + } + if (color_depth == PF_COLOR_DEPTH_6BIT) { + /* Use 18 bits per pixel. */ + cfg->lvds_interface_ctrl1 |= 0x20; + } + /* No clock spreading, 300 mV LVDS swing. */ + cfg->lvds_interface_ctrl2 = 0x03; + /* Swap LVDS lanes (N vs. P). */ + cfg->lvds_interface_ctrl3 = 0x04; + /* Delay T2 (VDD to LVDS active) by 16 ms. */ + cfg->t2_delay = 1; + /* 500 ms from LVDS to backlight active. */ + cfg->t3_timing = 10; + /* 1 second re-power delay. */ + cfg->t12_timing = 20; + /* 150 ms backlight off to LVDS inactive. */ + cfg->t4_timing = 3; + /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ + cfg->t5_delay = 1; + /* Enable backlight control. */ + cfg->backlight_ctrl = 0; + + return PTN_CFG_MODIFIED; +} diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/mainboard.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/mainboard.c deleted file mode 100644 index 65e78bb378..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/mainboard.c +++ /dev/null @@ -1,35 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2018 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <bootstate.h> -#include <console/console.h> -#include <hwilib.h> -#include <baseboard/variants.h> -#include <variant/ptn3460.h> - -void variant_mainboard_final(void) -{ - int status; - - /* - * Set up the DP2LVDS converter. - * ptn3460_init() may only be executed after i2c bus init. - */ - status = ptn3460_init("hwinfo.hex"); - if (status) - printk(BIOS_ERR, "LCD: Set up PTN with status 0x%x\n", status); - else - printk(BIOS_INFO, "LCD: Set up PTN was successful.\n"); -} diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c deleted file mode 100644 index 47763ae5d8..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl4/ptn3460.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2018 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <console/console.h> -#include <hwilib.h> -#include <device/i2c_simple.h> -#include <types.h> -#include <variant/ptn3460.h> - -/* - * This function sets up the DP2LVDS-converter to be used with the appropriate - * lcd panel. - * - * @param *hwi_block Filename in CBFS of the block to use as HW-Info. - * @return 0 on success or HWI-Data/PTN error code. - */ -int ptn3460_init(const char *hwi_block) -{ - struct ptn_3460_config cfg; - int status; - uint8_t disp_con = 0, color_depth = 0; - uint8_t edid_data[PTN_EDID_LEN]; - int i; - - if (!hwi_block || hwilib_find_blocks(hwi_block) != CB_SUCCESS) { - printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", - hwi_block); - return 1; - } - /* Get all needed information from hwinfo block. */ - if (hwilib_get_field(Edid, edid_data, sizeof(edid_data)) != - sizeof(edid_data)) { - printk(BIOS_ERR, "LCD: No EDID data available in %s\n", - hwi_block); - return 1; - } - if ((hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != - sizeof(disp_con))) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - if (hwilib_get_field(PF_Color_Depth, &color_depth, sizeof(color_depth)) - != sizeof(color_depth)) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - /* - * Here, all the desired information for setting up DP2LVDS converter - * is present. Inside the converter, table 6 will be used for the - * timings. - */ - status = ptn3460_write_edid(6, edid_data); - if (status) - return status; - /* Select this table to be emulated. */ - ptn_select_edid(6); - /* Read PTN configuration data. */ - status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF, (uint8_t *)&cfg, - sizeof(cfg)); - if (status) - return (PTN_BUS_ERROR | status); - /* Set up configuration data according to the hwinfo block we get. */ - cfg.dp_interface_ctrl = 0; - /* Use odd-bus for clock distribution only. */ - cfg.lvds_interface_ctrl1 = 0x01; - if (disp_con == PF_DISPLCON_LVDS_DUAL) - /* Turn on dual LVDS lane and clock. */ - cfg.lvds_interface_ctrl1 |= 0x0b; - if (color_depth == PF_COLOR_DEPTH_6BIT) - /* Use 18 bits per pixel. */ - cfg.lvds_interface_ctrl1 |= 0x20; - - /* No clock spreading, 300 mV LVDS swing. */ - cfg.lvds_interface_ctrl2 = 0x03; - /* Swap LVDS signal (N vs. P). */ - cfg.lvds_interface_ctrl3 = 0x04; - /* Delay T2 (VDD to LVDS active) by 16 ms. */ - cfg.t2_delay = 1; - /* 250 ms from LVDS to backlight active. */ - cfg.t3_timing = 10; - /* 1 second re-power delay. */ - cfg.t12_timing = 20; - /* 150 ms backlight off to LVDS inactive. */ - cfg.t4_timing = 3; - /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ - cfg.t5_delay = 1; - /* Enable backlight control. */ - cfg.backlight_ctrl = 0; - - /* Write back configuration data to PTN3460. */ - for (i = 0; i < sizeof(struct ptn_3460_config); i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF+i, - *(((uint8_t *)&cfg)+i)); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/* - * This function writes one Extended Display Identification Data (EDID) - * structure to PTN3460. - * - * @param edid_num Number of EDID that must be written (0..6). - * @param *data Pointer to a buffer where data to write is stored in. - * @return 0 on success or error code. - */ -int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]) -{ - int status; - int i; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - - /* First enable access to the desired EDID table. */ - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 5, edid_num); - if (status) - return (PTN_BUS_ERROR | status); - - /* Now we can simply write EDID-data to ptn3460. */ - for (i = 0; i < PTN_EDID_LEN; i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_EDID_OFF + i, data[i]); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/* - * This function selects one of 7 EDID-tables inside PTN3460 which should be - * emulated on DisplayPort and turn emulation ON. - * - * @param edid_num Number of EDID to emulate (0..6). - * @return 0 on success or error code. - */ -int ptn_select_edid(uint8_t edid_num) -{ - int status; - uint8_t val; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - /* Enable emulation of the desired EDID table. */ - val = (edid_num << 1) | 1; - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 4, val); - if (status) - return (PTN_BUS_ERROR | status); - else - return PTN_NO_ERROR; -} diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig index 21d7ac7b78..e46a0de6f9 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Kconfig @@ -11,6 +11,7 @@ config BOARD_SPECIFIC_OPTIONS select MAINBOARD_HAS_TPM2 select MAINBOARD_HAS_LPC_TPM select TPM_ON_FAST_SPI + select DRIVERS_I2C_PTN3460 config CBFS_SIZE default 0xb4e000 diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc index 03759d2633..bd81552afc 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/Makefile.inc @@ -2,4 +2,4 @@ romstage-y += gpio.c ramstage-y += gpio.c ramstage-y += mainboard.c -ramstage-y += ptn3460.c +ramstage-y += lcd_panel.c diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb index 3b28a26396..723ecb369c 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/devicetree.cb @@ -84,6 +84,10 @@ chip soc/intel/apollolake register "user_weekday" = "4" device i2c 0x32 on end # RTC RX6110 SA end + # Enable external display bridge (eDP to LVDS) + chip drivers/i2c/ptn3460 + device i2c 0x20 on end # PTN3460 DP2LVDS Bridge + end end device pci 16.1 off end # - I2C 1 device pci 16.2 off end # - I2C 2 diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/include/variant/ptn3460.h b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/include/variant/ptn3460.h deleted file mode 100644 index 3ff35d9ee8..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/include/variant/ptn3460.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2017 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef PTN3460_H_ -#define PTN3460_H_ - -#include <stdint.h> - -#define PTN_SLAVE_ADR 0x20 -#define PTN_I2C_CONTROLLER 0 - -#define PTN_EDID_OFF 0x00 -#define PTN_EDID_LEN 0x80 -#define PTN_CONFIG_OFF 0x80 -#define PTN_FLASH_CFG_OFF 0xE8 -#define PTN_FLASH_CFG_LEN 0x04 -#define PTN_MAX_EDID_NUM 6 - -/* Define some error codes that can be used. */ -#define PTN_NO_ERROR 0x00000000 -#define PTN_BUS_ERROR 0x10000000 -#define PTN_INVALID_EDID 0x20000000 - -struct ptn_3460_config { - /* DisplayPort interface control. */ - uint8_t dp_interface_ctrl; - /* LVDS interface control register 1. */ - uint8_t lvds_interface_ctrl1; - /* LVDS interface control register 2. */ - uint8_t lvds_interface_ctrl2; - /* LVDS interface control register 3. */ - uint8_t lvds_interface_ctrl3; - /* Select which EDID-block is emulated. */ - uint8_t edid_rom_emulation; - /* Select which EDID block to map to 0..0x7F. */ - uint8_t edid_rom_access_ctrl; - /* Smallest PWM frequency for back light. */ - uint8_t pwm_min[3]; - /* Biggest PWM frequency for back light. */ - uint8_t pwm_max[3]; - /* Fast link training control register. */ - uint8_t fast_link_ctrl; - /* Pin configuration control register 1. */ - uint8_t pin_cfg_ctrl1; - /* Pin configuration control register 2. */ - uint8_t pin_cfg_ctrl2; - /* Default PWM bit count in DPCD register. */ - uint8_t pwm_default; - /* Current PWM bit count in DPCD register. */ - uint16_t pwm_value; - /* Default PWM frequency in DPCD register. */ - uint8_t pwm_default_freq; - /* Panel T3 timing value. */ - uint8_t t3_timing; - /* Panel T12 timing value. */ - uint8_t t12_timing; - /* Back light control register. */ - uint8_t backlight_ctrl; - /* Panel T2 delay. */ - uint8_t t2_delay; - /* Panel T4 timing value. */ - uint8_t t4_timing; - /* Panel T5 delay. */ - uint8_t t5_delay; -} __packed; - -struct ptn_3460_flash { - /* Flash command (erase or erase and flash). */ - uint8_t cmd; - /* Magic number needed by the flash algorithm. */ - uint16_t magic; - /* Trigger for starting flash operation. */ - uint8_t trigger; -} __packed; - -int ptn3460_init(const char *hwi_block); -int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]); -int ptn_select_edid(uint8_t edid_num); -#endif /* PTN3460_H_ */ diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/lcd_panel.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/lcd_panel.c new file mode 100644 index 0000000000..1b0f730d0b --- /dev/null +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/lcd_panel.c @@ -0,0 +1,128 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014-2019 Siemens AG + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <console/console.h> +#include <device/device.h> +#include <device/pci_ops.h> +#include <drivers/i2c/ptn3460/ptn3460.h> +#include <hwilib.h> +#include <soc/pci_devs.h> +#include <types.h> + +static void igd_disable(void) +{ + struct device *root_dev = pcidev_path_on_root(SA_DEVFN_ROOT); + uint8_t deven; + uint16_t ggc; + + /* GMCH Graphics Control Register */ + ggc = pci_read_config16(root_dev, 0x50); + /* Set size of Graphics Translation Table Memory (GGMS) [7:6] + * to 0 and select 0 MB for Graphics Memory (GMS) [15:8]. */ + ggc &= ~(0xffc0); + /* Disable IGD VGA (IVD). */ + ggc |= 0x2; + pci_write_config16(root_dev, 0x50, ggc); + /* Device Enable Register */ + deven = pci_read_config8(root_dev, 0x54); + /* Disable IGD device (D2F0EN). */ + deven &= ~(0x10); + pci_write_config8(root_dev, 0x54, deven); +} + +/** \brief This function provides EDID data to the driver for DP2LVDS Bridge (PTN3460) + * @param edid_data pointer to EDID data in driver +*/ +enum cb_err mb_get_edid(uint8_t edid_data[0x80]) +{ + const char *hwi_block = "hwinfo.hex"; + + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return CB_ERR; + } + + /* Get EDID data from hwinfo block */ + if (hwilib_get_field(Edid, edid_data, PTN_EDID_LEN) != PTN_EDID_LEN) { + /* Disable IGD to avoid panel failures. */ + igd_disable(); + printk(BIOS_ERR, "LCD: No EDID data available in %s\n", hwi_block); + return CB_ERR; + } + return CB_SUCCESS; +} + +/** \brief This function provides EDID block [0..6] to the driver for DP2LVDS Bridge (PTN3460) + * which has to be used. +*/ +uint8_t mb_select_edid_table(void) +{ + return 6; /* With this mainboard we use EDID block 6 for emulation in PTN3460. */ +} + +/** \brief Function to enable mainboard to adjust the config data of PTN3460. + * @param *cfg_ptr Pointer to the PTN config structure to modify. + * @return -1 on error; PTN_CFG_MODIFIED if data was modified and needs to be updated. +*/ +int mb_adjust_cfg(struct ptn_3460_config *cfg) +{ + const char *hwi_block = "hwinfo.hex"; + uint8_t disp_con = 0, color_depth = 0; + + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return -1; + } + + if (hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != sizeof(disp_con)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + if (hwilib_get_field(PF_Color_Depth, &color_depth, + sizeof(color_depth)) != sizeof(color_depth)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + /* Set up configuration data according to the hwinfo block we got. */ + cfg->dp_interface_ctrl = 0x00; + /* Drive LVDS clock for single mode on odd bus per default. */ + cfg->lvds_interface_ctrl1 = 0x01; + if (disp_con == PF_DISPLCON_LVDS_DUAL) { + /* Turn on dual LVDS lane and clock. */ + cfg->lvds_interface_ctrl1 |= 0x0b; + } + if (color_depth == PF_COLOR_DEPTH_6BIT) { + /* Use 18 bits per pixel. */ + cfg->lvds_interface_ctrl1 |= 0x20; + } + /* 1 % clock spreading, 300 mV LVDS swing. */ + cfg->lvds_interface_ctrl2 = 0x13; + /* No LVDS lane swap. */ + cfg->lvds_interface_ctrl3 = 0x00; + /* Delay T2 (VDD to LVDS active) by 16 ms. */ + cfg->t2_delay = 1; + /* 500 ms from LVDS to backlight active. */ + cfg->t3_timing = 10; + /* 1 second re-power delay. */ + cfg->t12_timing = 20; + /* 150 ms backlight off to LVDS inactive. */ + cfg->t4_timing = 3; + /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ + cfg->t5_delay = 1; + /* Enable backlight control. */ + cfg->backlight_ctrl = 0; + + return PTN_CFG_MODIFIED; +} diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/mainboard.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/mainboard.c index e1b56bda13..f43cf8588c 100644 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/mainboard.c +++ b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/mainboard.c @@ -27,27 +27,15 @@ #include <timestamp.h> #include <baseboard/variants.h> #include <types.h> -#include <variant/ptn3460.h> #define TX_DWORD3 0xa8c void variant_mainboard_final(void) { - int status; struct device *dev = NULL; uint16_t cmd; /* - * Set up the DP2LVDS converter. - * ptn3460_init() may only be executed after i2c bus init. - */ - status = ptn3460_init("hwinfo.hex"); - if (status) - printk(BIOS_ERR, "LCD: Set up PTN with status 0x%x\n", status); - else - printk(BIOS_INFO, "LCD: Set up PTN was successful.\n"); - - /* * PIR6 register mapping for PCIe root ports * INTA#->PIRQB#, INTB#->PIRQC#, INTC#->PIRQD#, INTD#-> PIRQA# */ diff --git a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/ptn3460.c b/src/mainboard/siemens/mc_apl1/variants/mc_apl5/ptn3460.c deleted file mode 100644 index 2cc7dd4532..0000000000 --- a/src/mainboard/siemens/mc_apl1/variants/mc_apl5/ptn3460.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2017 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <console/console.h> -#include <hwilib.h> -#include <device/i2c_simple.h> -#include <device/pci_ops.h> -#include <soc/pci_devs.h> -#include <types.h> -#include <variant/ptn3460.h> - -static void igd_disable(void) -{ - struct device *root_dev = pcidev_path_on_root(SA_DEVFN_ROOT); - uint8_t deven; - uint16_t ggc; - - /* GMCH Graphics Control Register */ - ggc = pci_read_config16(root_dev, 0x50); - /* Set size of Graphics Translation Table Memory (GGMS) [7:6] - * to 0 and select 0 MB for Graphics Memory (GMS) [15:8]. */ - ggc &= ~(0xffc0); - /* Disable IGD VGA (IVD). */ - ggc |= 0x2; - pci_write_config16(root_dev, 0x50, ggc); - /* Device Enable Register */ - deven = pci_read_config8(root_dev, 0x54); - /* Disable IGD device (D2F0EN). */ - deven &= ~(0x10); - pci_write_config8(root_dev, 0x54, deven); -} - -/** - * This function sets up the DP2LVDS-converter to be used with the appropriate - * lcd panel. - * - * @param *hwi_block Filename in CBFS of the block to use as HW-Info. - * @return 0 on success or HWI-Data/PTN error code. - */ -int ptn3460_init(const char *hwi_block) -{ - struct ptn_3460_config cfg; - int status; - uint8_t disp_con = 0, color_depth = 0; - uint8_t edid_data[PTN_EDID_LEN]; - int i; - - if (!hwi_block || hwilib_find_blocks(hwi_block) != CB_SUCCESS) { - printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", - hwi_block); - return 1; - } - /* Get all needed information from hwinfo block. */ - if (hwilib_get_field(Edid, edid_data, sizeof(edid_data)) != - sizeof(edid_data)) { - /* Disable IGD to avoid panel failures. */ - igd_disable(); - printk(BIOS_ERR, "LCD: No EDID data available in %s\n", - hwi_block); - return 1; - } - if ((hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != - sizeof(disp_con))) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - if (hwilib_get_field(PF_Color_Depth, &color_depth, sizeof(color_depth)) - != sizeof(color_depth)) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - /* - * Here, all the desired information for setting up DP2LVDS converter - * is present. Inside the converter, table 6 will be used for the - * timings. - */ - status = ptn3460_write_edid(6, edid_data); - if (status) - return status; - /* Select this table to be emulated. */ - ptn_select_edid(6); - /* Read PTN configuration data. */ - status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF, (uint8_t *)&cfg, - sizeof(cfg)); - if (status) - return (PTN_BUS_ERROR | status); - /* Set up configuration data according to the hwinfo block we get. */ - cfg.dp_interface_ctrl = 0; - /* Drive LVDS clock for single mode on odd bus per default. */ - cfg.lvds_interface_ctrl1 = 0x01; - if (disp_con == PF_DISPLCON_LVDS_DUAL) - /* Turn on dual LVDS lane and clock. */ - cfg.lvds_interface_ctrl1 |= 0x0b; - if (color_depth == PF_COLOR_DEPTH_6BIT) - /* Use 18 bits per pixel. */ - cfg.lvds_interface_ctrl1 |= 0x20; - - /* 1 % clock spreading, 300 mV LVDS swing. */ - cfg.lvds_interface_ctrl2 = 0x13; - /* No LVDS signal swap. */ - cfg.lvds_interface_ctrl3 = 0x00; - /* Delay T2 (VDD to LVDS active) by 16 ms. */ - cfg.t2_delay = 1; - /* 250 ms from LVDS to backlight active. */ - cfg.t3_timing = 10; - /* 1 second re-power delay. */ - cfg.t12_timing = 20; - /* 150 ms backlight off to LVDS inactive. */ - cfg.t4_timing = 3; - /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ - cfg.t5_delay = 1; - /* Enable backlight control. */ - cfg.backlight_ctrl = 0; - - /* Write back configuration data to PTN3460. */ - for (i = 0; i < sizeof(struct ptn_3460_config); i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF+i, - *(((uint8_t *)&cfg)+i)); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/** - * This function writes one Extended Display Identification Data (EDID) - * structure to PTN3460. - * - * @param edid_num Number of EDID that must be written (0..6). - * @param *data Pointer to a buffer where data to write is stored in. - * @return 0 on success or error code. - */ -int ptn3460_write_edid(uint8_t edid_num, const uint8_t data[PTN_EDID_LEN]) -{ - int status; - int i; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - - /* First enable access to the desired EDID table. */ - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 5, edid_num); - if (status) - return (PTN_BUS_ERROR | status); - - /* Now we can simply write EDID-data to ptn3460. */ - for (i = 0; i < PTN_EDID_LEN; i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_EDID_OFF + i, data[i]); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/** - * This function selects one of 7 EDID-tables inside PTN3460 which should be - * emulated on DisplayPort and turn emulation ON. - * - * @param edid_num Number of EDID to emulate (0..6). - * @return 0 on success or error code. - */ -int ptn_select_edid(uint8_t edid_num) -{ - int status; - uint8_t val; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - /* Enable emulation of the desired EDID table. */ - val = (edid_num << 1) | 1; - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, - PTN_CONFIG_OFF + 4, val); - if (status) - return (PTN_BUS_ERROR | status); - else - return PTN_NO_ERROR; -} diff --git a/src/mainboard/siemens/mc_tcu3/Kconfig b/src/mainboard/siemens/mc_tcu3/Kconfig index 508aaebefb..8e01cdec4f 100644 --- a/src/mainboard/siemens/mc_tcu3/Kconfig +++ b/src/mainboard/siemens/mc_tcu3/Kconfig @@ -29,6 +29,7 @@ config BOARD_SPECIFIC_OPTIONS select USE_BLOBS select CBFS_AUTOGEN_ATTRIBUTES select USE_SIEMENS_HWILIB + select DRIVERS_I2C_PTN3460 config MAINBOARD_DIR string diff --git a/src/mainboard/siemens/mc_tcu3/Makefile.inc b/src/mainboard/siemens/mc_tcu3/Makefile.inc index 05b4e60193..3de042242b 100644 --- a/src/mainboard/siemens/mc_tcu3/Makefile.inc +++ b/src/mainboard/siemens/mc_tcu3/Makefile.inc @@ -17,4 +17,3 @@ ramstage-y += gpio.c ramstage-y += irqroute.c ramstage-y += lcd_panel.c -ramstage-y += ptn3460.c diff --git a/src/mainboard/siemens/mc_tcu3/devicetree.cb b/src/mainboard/siemens/mc_tcu3/devicetree.cb index 433eebeabf..a1416e490e 100644 --- a/src/mainboard/siemens/mc_tcu3/devicetree.cb +++ b/src/mainboard/siemens/mc_tcu3/devicetree.cb @@ -50,7 +50,12 @@ chip soc/intel/fsp_baytrail device pci 16.0 off end # 8086 0F37 - OTG controller device pci 17.0 on end # 8086 0F50 - EMMC 4.5 Port (MMC1 pins) - Only 1 EMMC port at a time device pci 18.0 on end # 8086 0F40 - SIO - DMA - device pci 18.1 on end # 8086 0F41 - I2C Port 1 + device pci 18.1 on # 8086 0F41 - I2C Port 1 + # Enable external display bridge (eDP to LVDS) + chip drivers/i2c/ptn3460 + device i2c 0x20 on end # PTN3460 DP2LVDS Bridge + end + end device pci 18.2 on end # 8086 0F42 - I2C Port 2 device pci 18.3 on end # 8086 0F43 - I2C Port 3 device pci 18.4 on end # 8086 0F44 - I2C Port 4 diff --git a/src/mainboard/siemens/mc_tcu3/lcd_panel.c b/src/mainboard/siemens/mc_tcu3/lcd_panel.c index c4456afb7a..c4660ee8cc 100644 --- a/src/mainboard/siemens/mc_tcu3/lcd_panel.c +++ b/src/mainboard/siemens/mc_tcu3/lcd_panel.c @@ -1,7 +1,7 @@ /* - * This file is part of the coreboot project. +* This file is part of the coreboot project. * - * Copyright (C) 2014 Siemens AG + * Copyright (C) 2014-2019 Siemens AG * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -14,17 +14,22 @@ */ #include <console/console.h> +#include <device/device.h> +#include <drivers/i2c/ptn3460/ptn3460.h> +#include <hwilib.h> #include <string.h> +#include <types.h> + #include "soc/gpio.h" #include "lcd_panel.h" -#include "ptn3460.h" +# define MAX_HWI_NAME_LENGTH 20 /** \brief Reads GPIOs used for LCD panel encoding and returns the 4 bit value * @param no parameters * @return LCD panel type encoded in 4 bits */ -u8 get_lcd_panel_type(void) +static u8 get_lcd_panel_type(void) { u8 lcd_type_gpio; @@ -35,48 +40,134 @@ u8 get_lcd_panel_type(void) /* There is an inverter in this signals so we need to invert them as well */ return ((~lcd_type_gpio) & 0x0f); } - -/** \brief Set up LCD panel - * @param no parameters - * @return 0 on success otherwise error value +/** \brief This function checks which LCD panel type is used with the mainboard + * and provides the name of the matching EDID data set in CBFS. + * @param Pointer to the filename in CBFS where the EDID data is located + * @return CB_SUCCESS on success otherwise CB_ERR */ -int setup_lcd_panel(void) +static enum cb_err get_hwi_filename(char *hwi_block) { u8 lcd_type; - int status; - char blockname[33]; + enum cb_err ret = CB_SUCCESS; lcd_type = get_lcd_panel_type(); printk(BIOS_INFO, "LCD: Found panel type %d\n", lcd_type); switch (lcd_type) { case LCD_PANEL_TYPE_10_INCH: - strcpy(blockname, "hwinfo10.hex"); + strcpy(hwi_block, "hwinfo10.hex"); break; case LCD_PANEL_TYPE_12_INCH: - strcpy(blockname, "hwinfo12.hex"); + strcpy(hwi_block, "hwinfo12.hex"); break; case LCD_PANEL_TYPE_15_INCH: - strcpy(blockname, "hwinfo15.hex"); + strcpy(hwi_block, "hwinfo15.hex"); break; case LCD_PANEL_TYPE_19_INCH: - strcpy(blockname, "hwinfo19.hex"); + strcpy(hwi_block, "hwinfo19.hex"); break; case LCD_PANEL_TYPE_EDID: - strcpy(blockname, "hwinfo.hex"); + strcpy(hwi_block, "hwinfo.hex"); break; default: printk(BIOS_ERR, "LCD: No supported panel found.\n"); - return 1; + ret = CB_ERR; break; } + return ret; +} + +/** \brief This function provides EDID data to the driver for DP2LVDS Bridge (PTN3460) + * @param edid_data pointer to EDID data in driver +*/ +enum cb_err mb_get_edid(uint8_t edid_data[0x80]) +{ + char hwi_block[MAX_HWI_NAME_LENGTH]; + + if (get_hwi_filename(hwi_block) != CB_SUCCESS) + return CB_ERR; + + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return CB_ERR; + } + + /* Get EDID data from hwinfo block */ + if (hwilib_get_field(Edid, edid_data, PTN_EDID_LEN) != PTN_EDID_LEN) { + printk(BIOS_ERR, "LCD: No EDID data available in %s\n", hwi_block); + return CB_ERR; + } + return CB_SUCCESS; +} + +/** \brief This function provides EDID block [0..6] to the driver for DP2LVDS Bridge (PTN3460) + * which has to be used. +*/ +uint8_t mb_select_edid_table(void) +{ + return 6; /* With this mainboard we use EDID block 6 for emulation in PTN3460. */ +} + +/** \brief Function to enable mainboard to adjust the config data of PTN3460. + * @param *cfg_ptr Pointer to the PTN config structure to modify. + * @return -1 on error; PTN_CFG_MODIFIED if data was modified and needs to be updated. +*/ +int mb_adjust_cfg(struct ptn_3460_config *cfg) +{ + char hwi_block[MAX_HWI_NAME_LENGTH]; + uint8_t disp_con = 0, color_depth = 0; + uint8_t hwid[4], tcu31_hwid[4] = {7, 9, 2, 0}; + + if (get_hwi_filename(hwi_block) != CB_SUCCESS) + return -1; + if (hwilib_find_blocks(hwi_block) != CB_SUCCESS) { + printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", hwi_block); + return -1; + } - /* Now that we have the panel type, set up the DP2LVDS converter */ - status = ptn3460_init(blockname); - if (status) - printk(BIOS_ERR, "LCD: Setup PTN with status 0x%x\n", status); - else - printk(BIOS_INFO, "LCD: Setup PTN with status 0x%x\n", status); + if (hwilib_get_field(PF_DisplCon, &disp_con, sizeof(disp_con)) != sizeof(disp_con)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + if (hwilib_get_field(PF_Color_Depth, &color_depth, + sizeof(color_depth)) != sizeof(color_depth)) { + printk(BIOS_ERR, "LCD: Missing panel features from %s\n", hwi_block); + return -1; + } + /* Set up configuration data according to the hwinfo block we got. */ + cfg->dp_interface_ctrl = 0x00; + cfg->lvds_interface_ctrl1 = 0x00; + if (disp_con == PF_DISPLCON_LVDS_DUAL) { + /* Turn on dual LVDS lane and clock. */ + cfg->lvds_interface_ctrl1 |= 0x0b; + } + if (color_depth == PF_COLOR_DEPTH_6BIT) { + /* Use 18 bits per pixel. */ + cfg->lvds_interface_ctrl1 |= 0x20; + } + /* No clock spreading, 300 mV LVDS swing. */ + cfg->lvds_interface_ctrl2 = 0x03; + /* Swap LVDS even and odd lanes for HW-ID 7.9.2.0 only. */ + if (hwilib_get_field(HWID, hwid, sizeof(hwid)) == sizeof(hwid) && + !(memcmp(hwid, tcu31_hwid, sizeof(hwid)))) { + /* Swap LVDS even and odd lane. */ + cfg->lvds_interface_ctrl3 = 0x01; + } else { + /* no LVDS lane swap */ + cfg->lvds_interface_ctrl3 = 0x00; + } + /* Delay T2 (VDD to LVDS active) by 16 ms. */ + cfg->t2_delay = 1; + /* 500 ms from LVDS to backlight active. */ + cfg->t3_timing = 10; + /* 1 second re-power delay. */ + cfg->t12_timing = 20; + /* 150 ms backlight off to LVDS inactive. */ + cfg->t4_timing = 3; + /* Delay T5 (LVDS to VDD inactive) by 16 ms. */ + cfg->t5_delay = 1; + /* Enable backlight control. */ + cfg->backlight_ctrl = 0; - return status; + return PTN_CFG_MODIFIED; } diff --git a/src/mainboard/siemens/mc_tcu3/lcd_panel.h b/src/mainboard/siemens/mc_tcu3/lcd_panel.h index a27cc52e4d..e119d7aaef 100644 --- a/src/mainboard/siemens/mc_tcu3/lcd_panel.h +++ b/src/mainboard/siemens/mc_tcu3/lcd_panel.h @@ -1,7 +1,7 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2014 Siemens AG + * Copyright (C) 2014-2019 Siemens AG * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -28,8 +28,4 @@ #define LCD_PANEL_TYPE_19_INCH 1 #define LCD_PANEL_TYPE_EDID 15 -u8 get_lcd_panel_type(void); -int setup_lcd_panel(void); - - #endif /* _LCD_PANEL_H_ */ diff --git a/src/mainboard/siemens/mc_tcu3/mainboard.c b/src/mainboard/siemens/mc_tcu3/mainboard.c index 955193fec2..7950572e99 100644 --- a/src/mainboard/siemens/mc_tcu3/mainboard.c +++ b/src/mainboard/siemens/mc_tcu3/mainboard.c @@ -23,8 +23,6 @@ #endif #include <hwilib.h> #include <i210.h> -#include "lcd_panel.h" - /** \brief This function will search for a MAC address which can be assigned * to a MACPHY. @@ -69,12 +67,10 @@ enum cb_err mainboard_get_mac_address(struct device *dev, uint8_t mac[6]) */ static void mainboard_enable(struct device *dev) { - } static void mainboard_final(void *chip_info) { - setup_lcd_panel(); } struct chip_operations mainboard_ops = { diff --git a/src/mainboard/siemens/mc_tcu3/ptn3460.c b/src/mainboard/siemens/mc_tcu3/ptn3460.c deleted file mode 100644 index 56f51f9647..0000000000 --- a/src/mainboard/siemens/mc_tcu3/ptn3460.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014-2019 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <console/console.h> -#include <hwilib.h> -#include <string.h> -#include <delay.h> -#include <types.h> -#include <device/i2c_simple.h> -#include "soc/i2c.h" -#include "ptn3460.h" - -/** \brief This functions sets up the DP2LVDS-converter to be used with the - * appropriate lcd panel - * @param *hwi_block Filename in CBFS of the block to use as HW-Info - * @return 0 on success or error code - */ -int ptn3460_init(char *hwi_block) -{ - struct ptn_3460_config cfg; - int status; - uint8_t disp_con = 0, color_depth = 0; - uint8_t edid_data[0x80]; - uint8_t hwid[4], tcu31_hwid[4] = {7, 9, 2, 0}; - uint8_t i; - - if (!hwi_block || hwilib_find_blocks(hwi_block) != CB_SUCCESS) { - printk(BIOS_ERR, "LCD: Info block \"%s\" not found!\n", - hwi_block); - return 1; - } - - /* Get all needed information from hwinfo block */ - if (hwilib_get_field(Edid, edid_data, 0x80) != sizeof(edid_data)) { - printk(BIOS_ERR, "LCD: No EDID data available in %s\n", - hwi_block); - return 1; - } - if ((hwilib_get_field(PF_DisplCon, &disp_con, 1) != 1)) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - if (hwilib_get_field(PF_Color_Depth, &color_depth, 1) != 1) { - printk(BIOS_ERR, "LCD: Missing panel features from %s\n", - hwi_block); - return 1; - } - /* Here, all the desired information for setting up DP2LVDS converter*/ - /* are present. Inside the converter, table 6 will be used for */ - /* the timings. */ - if ((status = ptn3460_write_edid(6, edid_data)) != 0) - return status; - /* Select this table to be emulated */ - ptn_select_edid(6); - /* Read PTN configuration data */ - status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_CONFIG_OFF, (u8 *) &cfg, - sizeof(struct ptn_3460_config)); - if (status) - return (PTN_BUS_ERROR | status); - - /* Set up configuration data according to the hwinfo blocks we get */ - cfg.dp_interface_ctrl = 0; - cfg.lvds_interface_ctrl1 = 0x00; - if (disp_con == PF_DISPLCON_LVDS_DUAL) - cfg.lvds_interface_ctrl1 |= 0x0b; /* Turn on dual LVDS lane and clock */ - if (color_depth == PF_COLOR_DEPTH_6BIT) - cfg.lvds_interface_ctrl1 |= 0x20; /* Use 18 bits per pixel */ - cfg.lvds_interface_ctrl2 = 0x03; /* no clock spreading, 300 mV LVDS swing */ - /* Swap LVDS even and odd lanes for HW-ID 7.9.2.0 only. */ - if (hwilib_get_field(HWID, hwid, sizeof(hwid)) == sizeof(hwid) && - !(memcmp(hwid, tcu31_hwid, sizeof(hwid)))) { - cfg.lvds_interface_ctrl3 = 0x01; /* swap LVDS even and odd */ - } else - cfg.lvds_interface_ctrl3 = 0x00; /* no LVDS signal swap */ - cfg.t2_delay = 1; /* Delay T2 (VDD to LVDS active) by 16 ms */ - cfg.t3_timing = 10; /* 500 ms from LVDS to backlight active */ - cfg.t12_timing = 20; /* 1 second re-power delay */ - cfg.t4_timing = 3; /* 150 ms backlight off to LVDS inactive */ - cfg.t5_delay = 1; /* Delay T5 (LVDS to VDD inactive) by 16 ms */ - cfg.backlight_ctrl = 0; /* Enable backlight control */ - - /* Write back configuration data to PTN3460 */ - for (i = 0; i < sizeof(struct ptn_3460_config); i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_CONFIG_OFF + i, - *(((uint8_t *) &cfg) + i)); - if (status) - return (PTN_BUS_ERROR | status); - } - - return PTN_NO_ERROR; -} - -/** \brief This functions reads one desired EDID data structure from PTN3460 - * @param edid_num Number of EDID that must be read (0..6) - * @param *data Pointer to a buffer where to store read data - * @return 0 on success or error code - */ -int ptn3460_read_edid(u8 edid_num, u8 *data) -{ - int status; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - /* First enable access to the desired EDID table */ - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_CONFIG_OFF + 5, edid_num); - if (status) - return (PTN_BUS_ERROR | status); - - /* Now we can simply read back EDID-data */ - status = i2c_read_bytes(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_EDID_OFF, data, - PTN_EDID_LEN); - if (status) - return (PTN_BUS_ERROR | status); - else - return PTN_NO_ERROR; -} - -/** \brief This functions writes one EDID data structure to PTN3460 - * @param edid_num Number of EDID that must be written (0..6) - * @param *data Pointer to a buffer where data to write is stored in - * @return 0 on success or error code - */ -int ptn3460_write_edid(u8 edid_num, u8 *data) -{ - int status; - int i; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - - /* First enable access to the desired EDID table */ - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_CONFIG_OFF + 5, edid_num); - if (status) - return (PTN_BUS_ERROR | status); - - /* Now we can simply write EDID-data to ptn3460 */ - for (i = 0; i < PTN_EDID_LEN; i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_EDID_OFF + i, - data[i]); - if (status) - return (PTN_BUS_ERROR | status); - } - return PTN_NO_ERROR; -} - -/** \brief This functions selects one of 7 EDID-tables inside PTN3460 - * which should be emulated on display port and turn emulation ON - * @param edid_num Number of EDID to emulate (0..6) - * @return 0 on success or error code - */ -int ptn_select_edid (u8 edid_num) -{ - int status; - u8 val; - - if (edid_num > PTN_MAX_EDID_NUM) - return PTN_INVALID_EDID; - /* Enable emulation of the desired EDID table */ - val = (edid_num << 1) | 1; - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_CONFIG_OFF + 4, val); - if (status) - return (PTN_BUS_ERROR | status); - else - return PTN_NO_ERROR; -} - -/** \brief This functions performs a flash operation which will write - * current configuration table (all the EDID-tables and the - * configuration space with a total amount of 1 KByte) - * to the internal flash of PTN3460 - * @param none - * @return 0 on success or error code - */ -int ptn3460_flash_config(void) -{ - int status, i; - struct ptn_3460_flash flash; - - flash.cmd = 0x01; /* perform erase and flash cycle */ - flash.magic = 0x7845; /* Magic number to protect flash operation */ - flash.trigger = 0x56; /* This value starts flash operation */ - - for (i = 0; i < sizeof(struct ptn_3460_flash); i++) { - status = i2c_writeb(PTN_I2C_CONTROLLER, PTN_SLAVE_ADR, PTN_FLASH_CFG_OFF+i, - *(((uint8_t *) &flash) + i)); - if (status) - return (PTN_BUS_ERROR | status); - } - if (status) { - return (PTN_BUS_ERROR | status); - } else { - /* To ensure the flash operation is finished, we have to wait 300 ms */ - mdelay(300); - return PTN_NO_ERROR; - } -} diff --git a/src/mainboard/siemens/mc_tcu3/ptn3460.h b/src/mainboard/siemens/mc_tcu3/ptn3460.h deleted file mode 100644 index 8dc002dc39..0000000000 --- a/src/mainboard/siemens/mc_tcu3/ptn3460.h +++ /dev/null @@ -1,72 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 Siemens AG - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#ifndef PTN3460_H_ -#define PTN3460_H_ - -#include "lcd_panel.h" - -#define PTN_SLAVE_ADR 0x20 -#define PTN_I2C_CONTROLLER 0 - -#define PTN_EDID_OFF 0x00 -#define PTN_EDID_LEN 0x80 -#define PTN_CONFIG_OFF 0x80 -#define PTN_CONFIG_LEN 0x19 -#define PTN_FLASH_CFG_OFF 0xE8 -#define PTN_FLASH_CFG_LEN 0x04 -#define PTN_MAX_EDID_NUM 6 - -/* Define some error codes that can be used */ -#define PTN_NO_ERROR 0x00000000 -#define PTN_BUS_ERROR 0x10000000 -#define PTN_INVALID_EDID 0x20000000 - -struct ptn_3460_config{ - u8 dp_interface_ctrl; /* DisplayPort interface control */ - u8 lvds_interface_ctrl1; /* LVDS interface control register 1 */ - u8 lvds_interface_ctrl2; /* LVDS interface control register 2 */ - u8 lvds_interface_ctrl3; /* LVDS interface control register 3 */ - u8 edid_rom_emulation; /* select which EDID-block is emulated */ - u8 edid_rom_access_ctrl; /* select which EDID block to map to 0..0x7F */ - u8 pwm_min[3]; /* smallest PWM frequency for back light */ - u8 pwm_max[3]; /* biggest PWM frequency for back light */ - u8 fast_link_ctrl; /* Fast link training control register */ - u8 pin_cfg_ctrl1; /* Pin configuration control register 1 */ - u8 pin_cfg_ctrl2; /* Pin configuration control register 2 */ - u8 pwm_default; /* Default PWM bit count in DPCD register */ - u16 pwm_value; /* Current PWM bit count in DPCD register */ - u8 pwm_default_freq; /* Default PWM frequency in DPCD register */ - u8 t3_timing; /* Panel T3 timing value */ - u8 t12_timing; /* Panel T12 timing value */ - u8 backlight_ctrl; /* Back light control register */ - u8 t2_delay; /* Panel T2 delay */ - u8 t4_timing; /* Panel T4 timing value */ - u8 t5_delay; /* Panel T5 delay */ -} __packed; - -struct ptn_3460_flash{ - u8 cmd; /* Flash command (erase or erase and flash) */ - u16 magic; /* Magic number needed by the flash algorithm */ - u8 trigger; /* Trigger for starting flash operation */ -} __packed; - - -int ptn3460_init(char *hwi_block); -int ptn3460_read_edid(u8 edid_num, u8 *data); -int ptn3460_write_edid(u8 edid_num, u8 *data); -int ptn_select_edid(u8 edid_num); -int ptn3460_flash_config(void); -#endif /* PTN3460_H_ */ |