diff options
| author | Dirk Eibach <dirk.eibach@gdsys.cc> | 2014-07-03 09:28:17 +0200 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-07-07 19:47:18 -0400 |
| commit | edfe9fea7ce0a1cfde67712a67f88b601eb7803f (patch) | |
| tree | 7b53af54931d4de8d678153151d961acc8513cba /board/gdsys/common/dp501.c | |
| parent | 35ecf752305aadd2b048c5942f56bec813d12ad4 (diff) | |
| download | blackbird-obmc-uboot-edfe9fea7ce0a1cfde67712a67f88b601eb7803f.tar.gz blackbird-obmc-uboot-edfe9fea7ce0a1cfde67712a67f88b601eb7803f.zip | |
board: iocon: Support DisplayPort hardware
There is a new iocon hardware flavor, supporting DisplayPort finally.
Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Diffstat (limited to 'board/gdsys/common/dp501.c')
| -rw-r--r-- | board/gdsys/common/dp501.c | 33 |
1 files changed, 23 insertions, 10 deletions
diff --git a/board/gdsys/common/dp501.c b/board/gdsys/common/dp501.c index 52f3ea167f..e00e58997b 100644 --- a/board/gdsys/common/dp501.c +++ b/board/gdsys/common/dp501.c @@ -60,8 +60,31 @@ void dp501_powerup(u8 addr) i2c_reg_write(addr, 0x71, 0x20); /* Enable Aux burst write */ dp501_setbits(addr, 0x78, 0x30); /* Disable HPD2 IRQ */ dp501_clrbits(addr, 0x2f, 0x40); /* Link FIFO reset selection */ + +#ifdef CONFIG_SYS_DP501_VCAPCTRL0 + i2c_reg_write(addr, 0x24, CONFIG_SYS_DP501_VCAPCTRL0); +#else i2c_reg_write(addr, 0x24, 0xc0); /* SDR mode 0, ext. H/VSYNC */ +#endif + +#ifdef CONFIG_SYS_DP501_DIFFERENTIAL + i2c_reg_write(addr + 2, 0x24, 0x10); /* clock input differential */ + i2c_reg_write(addr + 2, 0x25, 0x04); + i2c_reg_write(addr + 2, 0x26, 0x10); +#else i2c_reg_write(addr + 2, 0x24, 0x02); /* clock input single ended */ +#endif + + i2c_reg_write(addr + 2, 0x00, 0x18); /* driving strength */ + i2c_reg_write(addr + 2, 0x03, 0x06); /* driving strength */ + i2c_reg_write(addr, 0x2c, 0x00); /* configure N value */ + i2c_reg_write(addr, 0x2d, 0x00); /* configure N value */ + i2c_reg_write(addr, 0x2e, 0x0c); /* configure N value */ + i2c_reg_write(addr, 0x76, 0xff); /* clear all interrupt */ + dp501_setbits(addr, 0x78, 0x03); /* clear all interrupt */ + i2c_reg_write(addr, 0x75, 0xf8); /* aux channel reset */ + i2c_reg_write(addr, 0x75, 0x00); /* clear aux channel reset */ + i2c_reg_write(addr, 0x87, 0x70); /* set retry counter as 7 */ if (dp501_detect_cable_adapter(addr)) { printf("DVI/HDMI cable adapter detected\n"); @@ -69,16 +92,6 @@ void dp501_powerup(u8 addr) dp501_clrbits(addr, 0x00, 0x08); /* DVI/HDMI HDCP operation */ } else { printf("no DVI/HDMI cable adapter detected\n"); - i2c_reg_write(addr + 2, 0x00, 0x18); /* driving strength */ - i2c_reg_write(addr + 2, 0x03, 0x06); /* driving strength */ - i2c_reg_write(addr, 0x2c, 0x00); /* configure N value */ - i2c_reg_write(addr, 0x2d, 0x00); /* configure N value */ - i2c_reg_write(addr, 0x2e, 0x0c); /* configure N value */ - i2c_reg_write(addr, 0x76, 0xff); /* clear all interrupt */ - dp501_setbits(addr, 0x78, 0x03); /* clear all interrupt */ - i2c_reg_write(addr, 0x75, 0xf8); /* aux channel reset */ - i2c_reg_write(addr, 0x75, 0x00); /* clear aux channel reset */ - i2c_reg_write(addr, 0x87, 0x70); /* set retry counter as 7 */ dp501_setbits(addr, 0x00, 0x08); /* for DP HDCP operation */ dp501_link_training(addr); |
