diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/mainboard/hp/8760w.md | 6 | ||||
| -rw-r--r-- | Documentation/mainboard/hp/hp_kbc1126_laptops.md (renamed from Documentation/mainboard/hp/elitebook_series.md) | 30 | ||||
| -rw-r--r-- | Documentation/mainboard/index.md | 2 |
3 files changed, 20 insertions, 18 deletions
diff --git a/Documentation/mainboard/hp/8760w.md b/Documentation/mainboard/hp/8760w.md index 714745aa04..071d35e251 100644 --- a/Documentation/mainboard/hp/8760w.md +++ b/Documentation/mainboard/hp/8760w.md @@ -2,6 +2,9 @@ This page describes how to run coreboot on the [HP EliteBook 8760w]. +The coreboot code for this laptop is still not merged, you need to +checkout the [code on gerrit] to build coreboot for the laptop. + ## Flashing coreboot ```eval_rst @@ -29,7 +32,7 @@ This page describes how to run coreboot on the [HP EliteBook 8760w]. ## Required proprietary blobs - Intel Firmware Descriptor, ME and GbE firmware -- EC: please read [EliteBook Series](elitebook_series) +- EC: please read [HP Laptops with KBC1126 Embedded Controller](hp_kbc1126_laptops) ## Flashing instructions @@ -80,3 +83,4 @@ clip to read and flash the chip. ``` [HP EliteBook 8760w]: https://support.hp.com/us-en/product/hp-elitebook-8760w-mobile-workstation/5071180 +[code on gerrit]: https://review.coreboot.org/c/coreboot/+/30936 diff --git a/Documentation/mainboard/hp/elitebook_series.md b/Documentation/mainboard/hp/hp_kbc1126_laptops.md index 6668928008..357af4fb42 100644 --- a/Documentation/mainboard/hp/elitebook_series.md +++ b/Documentation/mainboard/hp/hp_kbc1126_laptops.md @@ -1,13 +1,14 @@ -# HP EliteBook series +# HP Laptops with KBC1126 Embedded Controller This document is about HP EliteBook series laptops up to Ivy Bridge era which use SMSC KBC1126 as embedded controller. -## EC +SMSC KBC1126 (and older similar chips like KBC1098) has been used in +HP EliteBooks for many generations. BIOS and EC firmware share an SPI +flash chip in these laptops, so we need to put firmware blobs for the +EC to the coreboot image. -SMSC KBC1098/KBC1126 has been used in HP EliteBooks for many generations. -They use similar EC firmware that will load other code and data from the -SPI flash chip, so we need to put some firmware blobs to the coreboot image. +## EC firmware extraction and coreboot building The following document takes EliteBook 2760p as an example. @@ -32,18 +33,15 @@ Chipset ---> (2760p-fw2.bin) KBC1126 filename #2 path and filename ``` -## Super I/O +## Porting guide for HP laptops with KBC1126 -EliteBook 8000 series laptops have SMSC LPC47n217 Super I/O to provide -a serial port and a parallel port, you can debug the laptop via this -serial port. - -## porting - -To port coreboot to an HP EliteBook laptop, you need to do the following: +To port coreboot to an HP laptop with KBC1126, you need to do the +following: - select Kconfig option `EC_HP_KBC1126` -- select Kconfig option `SUPERIO_SMSC_LPC47N217` if there is LPC47n217 Super I/O +- select Kconfig option `SUPERIO_SMSC_LPC47N217` if there is LPC47n217 + Super I/O, usually in EliteBook 8000 series, which can be used for + debugging via serial port - initialize EC and Super I/O in romstage - add EC and Super I/O support to devicetree.cb @@ -51,8 +49,8 @@ To get the related values for EC in devicetree.cb, you need to extract the EFI module EcThermalInit from the vendor UEFI firmware with [UEFITool]. Usually, `ec_data_port`, `ec_cmd_port` and `ec_ctrl_reg` has the following values: -- For xx60 series: 0x60, 0x64, 0xca -- For xx70 series: 0x62, 0x66, 0x81 +- For EliteBook xx60 series: 0x60, 0x64, 0xca +- For EliteBook xx70 series: 0x62, 0x66, 0x81 You can use [radare2] and the following [r2pipe] Python script to find these values from the EcThermalInit EFI module: diff --git a/Documentation/mainboard/index.md b/Documentation/mainboard/index.md index 7637f7bcbe..57df302986 100644 --- a/Documentation/mainboard/index.md +++ b/Documentation/mainboard/index.md @@ -58,7 +58,7 @@ The boards in this section are not real mainboards, but emulators. ### EliteBook series -- [EliteBook common](hp/elitebook_series.md) +- [HP Laptops with KBC1126 EC](hp/hp_kbc1126_laptops.md) - [EliteBook 8760w](hp/8760w.md) ## Intel |