diff options
| author | Mario Scheithauer <mario.scheithauer@siemens.com> | 2017-03-29 17:09:37 +0200 |
|---|---|---|
| committer | Werner Zeh <werner.zeh@siemens.com> | 2017-04-04 06:44:47 +0200 |
| commit | 956a9f6a9cf0e51c9155738baa566b192897648f (patch) | |
| tree | c8ba5ccb412bbdc9e0657e58824613bf68cf5b77 /src/mainboard/siemens/mc_apl1/mainboard.c | |
| parent | 45ff9cbaa997ddf935cc028beaf66ba9fe0fea56 (diff) | |
siemens/mc_apl1: Activate PTN3460 eDP to LVDS bridge IC
This mainboard uses a LVDS connection for LCD panels. Apollo Lake SoC
provides a display controller with three independent pipes (1x eDP and
2x DP/HDMI). PTN3460 is an embedded DisplayPort to LVDS bridge device
that enables connectivity between an eDP source and LVDS display panel
(http://www.nxp.com/documents/data_sheet/PTN3460.pdf).
The bridge contains an On-chip Extended Display Identification Data
(EDIT) emulation for EDIT data structures.
This patch sets up PTN3460 to be used with the appropriate LCD panel.
Change-Id: Ib8fa79bb608f1842f26c1af3d7bf4bb0513fa94d
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/19043
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/mainboard/siemens/mc_apl1/mainboard.c')
| -rw-r--r-- | src/mainboard/siemens/mc_apl1/mainboard.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/mainboard/siemens/mc_apl1/mainboard.c b/src/mainboard/siemens/mc_apl1/mainboard.c index 692a076ee6..a15daa913c 100644 --- a/src/mainboard/siemens/mc_apl1/mainboard.c +++ b/src/mainboard/siemens/mc_apl1/mainboard.c @@ -14,12 +14,15 @@ * GNU General Public License for more details. */ +#include <device/pci.h> #include <device/device.h> #include <console/console.h> +#include <soc/pci_devs.h> #include <string.h> #include <hwilib.h> #include <i210.h> #include "brd_gpio.h" +#include "ptn3460.h" #define MAX_PATH_DEPTH 12 #define MAX_NUM_MAPPINGS 10 @@ -108,6 +111,22 @@ static void mainboard_init(void *chip_info) gpio_configure_pads(pads, num); } +static void mainboard_final(void *chip_info) +{ + 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"); +} + struct chip_operations mainboard_ops = { .init = mainboard_init, + .final = mainboard_final, }; |