summaryrefslogtreecommitdiff
path: root/src/mainboard/siemens/mc_apl1/ptn3460.c
diff options
context:
space:
mode:
authorMario Scheithauer <mario.scheithauer@siemens.com>2018-04-25 14:05:09 +0200
committerPatrick Georgi <pgeorgi@google.com>2018-04-27 09:23:52 +0000
commit614135359d66ca242fa9df2d3d67fa9c9d145818 (patch)
tree723ae3b83d8556f6e377b6e1ef32de003f7fbc9f /src/mainboard/siemens/mc_apl1/ptn3460.c
parent5c49d18537bd4a98cbfa1d93b1d0a725c22a30ab (diff)
siemens/mc_apl1: Move board specific things to mc_apl1 variant
The following things are specific characteristic of mc_apl1 board variant: - initialization for the eDP to LVDS converter - enable decoding address range for COM 3 - legacy IRQ routing for PCI devices - wait function for old legacy devices - set coreboot ready LED Change-Id: I5c853e6caae6cc880ead436f232cabddeee6d09a Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com> Reviewed-on: https://review.coreboot.org/25822 Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/siemens/mc_apl1/ptn3460.c')
-rw-r--r--src/mainboard/siemens/mc_apl1/ptn3460.c177
1 files changed, 0 insertions, 177 deletions
diff --git a/src/mainboard/siemens/mc_apl1/ptn3460.c b/src/mainboard/siemens/mc_apl1/ptn3460.c
deleted file mode 100644
index 1877e8b9fa..0000000000
--- a/src/mainboard/siemens/mc_apl1/ptn3460.c
+++ /dev/null
@@ -1,177 +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 <lib.h>
-#include <hwilib.h>
-#include <device/i2c_simple.h>
-#include "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;
-
- /* No clock spreading, 300 mV LVDS swing. */
- cfg.lvds_interface_ctrl2 = 0x03;
- /* 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);
- }
-
- /* 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);
-
- 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;
-}