diff options
Diffstat (limited to 'src/mainboard/siemens/mc_tcu3/ptn3460.c')
| -rw-r--r-- | src/mainboard/siemens/mc_tcu3/ptn3460.c | 209 |
1 files changed, 0 insertions, 209 deletions
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; - } -} |