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Documentation: Move intelp2m from description.md to Documention

Browse Source 
The description.md file for the intelp2m utility wasn't the description
that was needed - just a subject, and what language it was written in.
It was instead a set of more full documentation, so move it into the
Documentation directory and create a new description file.

Change-Id: Ia180ae41f91f8b8eb408351a9e44e899edc031d3
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64578
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
This commit is contained in:
Martin Roth
2022-05-22 18:52:18 -06:00
committed by Martin L Roth
parent 1c5209835f
commit 81e0d689c0
4 changed files with 180 additions and 177 deletions
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Documentation/util.md
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@@ -157,6 +157,7 @@ the documentation `Bash`
* [cbfstool](util/cbfstool/index.md) * [cbfstool](util/cbfstool/index.md)
* [ifdtool](util/ifdtool/index.md) * [ifdtool](util/ifdtool/index.md)
* [intelp2m](util/intelp2m/index.md)
## Generated documentation ## Generated documentation

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Intel Pad to Macro (intelp2m) converter
=======================================
This utility allows to convert the configuration DW0/1 registers value
from [inteltool](../inteltool/description.md) dump to coreboot macros.
```bash
(shell)$ make
(shell)$ ./intelp2m -h
(shell)$ ./intelp2m -file /path/to/inteltool.log
```
### Platforms
It is possible to use templates for parsing files of excellent inteltool.log.
To specify such a pattern, use the option -t <template number>. For example,
using template type # 1, you can parse gpio.h from an already added board in
the coreboot project.
```bash
(shell)$ ./intelp2m -h
-t
template type number
0 - inteltool.log (default)
1 - gpio.h
2 - your template
(shell)$ ./intelp2m -t 1 -file coreboot/src/mainboard/yourboard/gpio.h
```
You can also add a template to 'parser/template.go' for your file type with
the configuration of the pads.
platform type is set using the -p option (Sunrise by default):
```bash
-p string
set up a platform
snr - Sunrise PCH with Skylake/Kaby Lake CPU
lbg - Lewisburg PCH with Xeon SP CPU
apl - Apollo Lake SoC
cnl - CannonLake-LP or Whiskeylake/Coffeelake/Cometlake-U SoC
adl - AlderLake PCH
(default "snr")
(shell)$ ./intelp2m -p <platform> -file path/to/inteltool.log
```
### Packages
![][pckgs]
[pckgs]: config/gopackages.png
### Bit fields in macros
Use the -fld=cb option to only generate a sequence of bit fields in a new macro:
```bash
(shell)$ ./intelp2m -fld cb -p apl -file ../apollo-inteltool.log
```
```c
_PAD_CFG_STRUCT(GPIO_37, PAD_FUNC(NF1) | PAD_TRIG(OFF) | PAD_TRIG(OFF), PAD_PULL(DN_20K)), /* LPSS_UART0_TXD */
```
### Raw DW0, DW1 register value
To generate the gpio.c with raw PAD_CFG_DW0 and PAD_CFG_DW1 register values you need
to use the -fld=raw option:
```bash
(shell)$ ./intelp2m -fld raw -file /path/to/inteltool.log
```
```c
_PAD_CFG_STRUCT(GPP_A10, 0x44000500, 0x00000000),
```
```bash
(shell)$ ./intelp2m -iiii -fld raw -file /path/to/inteltool.log
```
```c
/* GPP_A10 - CLKOUT_LPC1 */
/* DW0: 0x44000500, DW1: 0x00000000 */
/* DW0: 0x04000100 - IGNORED */
/* PAD_CFG_NF(GPP_A10, NONE, DEEP, NF1), */
_PAD_CFG_STRUCT(GPP_A10, 0x44000500, 0x00000000),
```
### Macro Check
After generating the macro, the utility checks all used
fields of the configuration registers. If some field has been
ignored, the utility generates field macros. To not check
macros, use the -n option:
```bash
(shell)$ ./intelp2m -n -file /path/to/inteltool.log
```
In this case, some fields of the configuration registers
DW0 will be ignored.
```c
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_38, UP_20K, DEEP, NF1, HIZCRx1, DISPUPD),
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD),
```
### Information level
The utility can generate additional information about the bit
fields of the DW0 and DW1 configuration registers. Using the
options -i, -ii, -iii, -iiii you can set the info level from
1 to 4:
```bash
(shell)$./intelp2m -i -file /path/to/inteltool.log
```
```c
_PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP) | PAD_TRIG(OFF), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)), /* LPSS_UART0_TXD */
```
```bash
(shell)$./intelp2m -ii -file /path/to/inteltool.log
(shell)$./intelp2m -iii -file /path/to/inteltool.log
(shell)$./intelp2m -iiii -file /path/to/inteltool.log
```
```c
/* GPIO_39 - LPSS_UART0_TXD */
/* DW0: 0x44000400, DW1: 0x00003100 */ --> (ii)
/* DW0 : PAD_TRIG(OFF) - IGNORED */ --> (iii)
/* PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD), */ --> (iiii)
_PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP) | PAD_TRIG(OFF), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)),
```
If the -n switch was used and macros was generated without checking:
```c
/* GPIO_39 - LPSS_UART0_TXD */ --> (i)
/* DW0: 0x44000400, DW1: 0x00003100 */ --> (ii)
/* DW0: PAD_TRIG(OFF) - IGNORED */ --> (iii)
/* _PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP) | PAD_TRIG(OFF), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)), */ --> (iiii)
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD),
```
### Ignoring Fields
Utilities can generate the _PAD_CFG_STRUCT macro and exclude fields
from it that are not in the corresponding PAD_CFG_*() macro:
```bash
(shell)$ ./intelp2m -iiii -fld cb -ign -file /path/to/inteltool.log
```
```c
/* GPIO_39 - LPSS_UART0_TXD */
/* DW0: 0x44000400, DW1: 0x00003100 */
/* DW0: PAD_TRIG(OFF) - IGNORED */
/* PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD), */
_PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)),
```
### FSP-style macro
The utility allows to generate macros that include fsp/edk2-palforms style bitfields:
```bash
(shell)$ ./intelp2m -i -fld fsp -p lbg -file ../crb-inteltool.log
```
```c
{ GPIO_SKL_H_GPP_A12, { GpioPadModeGpio, GpioHostOwnAcpi, GpioDirInInvOut, GpioOutLow, GpioIntSci | GpioIntLvlEdgDis, GpioResetNormal, GpioTermNone, GpioPadConfigLock }, /* GPIO */
```
```bash
(shell)$ ./intelp2m -iiii -fld fsp -p lbg -file ../crb-inteltool.log
```
```c
/* GPP_A12 - GPIO */
/* DW0: 0x80880102, DW1: 0x00000000 */
/* PAD_CFG_GPI_SCI(GPP_A12, NONE, PLTRST, LEVEL, INVERT), */
{ GPIO_SKL_H_GPP_A12, { GpioPadModeGpio, GpioHostOwnAcpi, GpioDirInInvOut, GpioOutLow, GpioIntSci | GpioIntLvlEdgDis, GpioResetNormal, GpioTermNone, GpioPadConfigLock },
```
### Supports Chipsets
Sunrise PCH, Lewisburg PCH, Apollo Lake SoC, CannonLake-LP SoCs

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util/intelp2m/description.md
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@@ -1,177 +1,2 @@
Intel Pad to Macro (intelp2m) converter convert the configuration DW0/1 registers value from an inteltool dump
======================================= to coreboot macros. 'go'
This utility allows to convert the configuration DW0/1 registers value
from [inteltool](../inteltool/description.md) dump to coreboot macros.
```bash
(shell)$ make
(shell)$ ./intelp2m -h
(shell)$ ./intelp2m -file /path/to/inteltool.log
```
### Platforms
It is possible to use templates for parsing files of excellent inteltool.log.
To specify such a pattern, use the option -t <template number>. For example,
using template type # 1, you can parse gpio.h from an already added board in
the coreboot project.
```bash
(shell)$ ./intelp2m -h
-t
template type number
0 - inteltool.log (default)
1 - gpio.h
2 - your template
(shell)$ ./intelp2m -t 1 -file coreboot/src/mainboard/yourboard/gpio.h
```
You can also add a template to 'parser/template.go' for your file type with
the configuration of the pads.
platform type is set using the -p option (Sunrise by default):
```bash
-p string
set up a platform
snr - Sunrise PCH with Skylake/Kaby Lake CPU
lbg - Lewisburg PCH with Xeon SP CPU
apl - Apollo Lake SoC
cnl - CannonLake-LP or Whiskeylake/Coffeelake/Cometlake-U SoC
adl - AlderLake PCH
(default "snr")
(shell)$ ./intelp2m -p <platform> -file path/to/inteltool.log
```
### Packages
![][pckgs]
[pckgs]: config/gopackages.png
### Bit fields in macros
Use the -fld=cb option to only generate a sequence of bit fields in a new macro:
```bash
(shell)$ ./intelp2m -fld cb -p apl -file ../apollo-inteltool.log
```
```c
_PAD_CFG_STRUCT(GPIO_37, PAD_FUNC(NF1) | PAD_TRIG(OFF) | PAD_TRIG(OFF), PAD_PULL(DN_20K)), /* LPSS_UART0_TXD */
```
### Raw DW0, DW1 register value
To generate the gpio.c with raw PAD_CFG_DW0 and PAD_CFG_DW1 register values you need
to use the -fld=raw option:
```bash
(shell)$ ./intelp2m -fld raw -file /path/to/inteltool.log
```
```c
_PAD_CFG_STRUCT(GPP_A10, 0x44000500, 0x00000000),
```
```bash
(shell)$ ./intelp2m -iiii -fld raw -file /path/to/inteltool.log
```
```c
/* GPP_A10 - CLKOUT_LPC1 */
/* DW0: 0x44000500, DW1: 0x00000000 */
/* DW0: 0x04000100 - IGNORED */
/* PAD_CFG_NF(GPP_A10, NONE, DEEP, NF1), */
_PAD_CFG_STRUCT(GPP_A10, 0x44000500, 0x00000000),
```
### Macro Check
After generating the macro, the utility checks all used
fields of the configuration registers. If some field has been
ignored, the utility generates field macros. To not check
macros, use the -n option:
```bash
(shell)$ ./intelp2m -n -file /path/to/inteltool.log
```
In this case, some fields of the configuration registers
DW0 will be ignored.
```c
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_38, UP_20K, DEEP, NF1, HIZCRx1, DISPUPD),
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD),
```
### Information level
The utility can generate additional information about the bit
fields of the DW0 and DW1 configuration registers. Using the
options -i, -ii, -iii, -iiii you can set the info level from
1 to 4:
```bash
(shell)$./intelp2m -i -file /path/to/inteltool.log
```
```c
_PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP) | PAD_TRIG(OFF), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)), /* LPSS_UART0_TXD */
```
```bash
(shell)$./intelp2m -ii -file /path/to/inteltool.log
(shell)$./intelp2m -iii -file /path/to/inteltool.log
(shell)$./intelp2m -iiii -file /path/to/inteltool.log
```
```c
/* GPIO_39 - LPSS_UART0_TXD */
/* DW0: 0x44000400, DW1: 0x00003100 */ --> (ii)
/* DW0 : PAD_TRIG(OFF) - IGNORED */ --> (iii)
/* PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD), */ --> (iiii)
_PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP) | PAD_TRIG(OFF), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)),
```
If the -n switch was used and macros was generated without checking:
```c
/* GPIO_39 - LPSS_UART0_TXD */ --> (i)
/* DW0: 0x44000400, DW1: 0x00003100 */ --> (ii)
/* DW0: PAD_TRIG(OFF) - IGNORED */ --> (iii)
/* _PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP) | PAD_TRIG(OFF), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)), */ --> (iiii)
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD),
```
### Ignoring Fields
Utilities can generate the _PAD_CFG_STRUCT macro and exclude fields
from it that are not in the corresponding PAD_CFG_*() macro:
```bash
(shell)$ ./intelp2m -iiii -fld cb -ign -file /path/to/inteltool.log
```
```c
/* GPIO_39 - LPSS_UART0_TXD */
/* DW0: 0x44000400, DW1: 0x00003100 */
/* DW0: PAD_TRIG(OFF) - IGNORED */
/* PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_39, UP_20K, DEEP, NF1, TxLASTRxE, DISPUPD), */
_PAD_CFG_STRUCT(GPIO_39, PAD_FUNC(NF1) | PAD_RESET(DEEP), PAD_PULL(UP_20K) | PAD_IOSTERM(DISPUPD)),
```
### FSP-style macro
The utility allows to generate macros that include fsp/edk2-palforms style bitfields:
```bash
(shell)$ ./intelp2m -i -fld fsp -p lbg -file ../crb-inteltool.log
```
```c
{ GPIO_SKL_H_GPP_A12, { GpioPadModeGpio, GpioHostOwnAcpi, GpioDirInInvOut, GpioOutLow, GpioIntSci | GpioIntLvlEdgDis, GpioResetNormal, GpioTermNone, GpioPadConfigLock }, /* GPIO */
```
```bash
(shell)$ ./intelp2m -iiii -fld fsp -p lbg -file ../crb-inteltool.log
```
```c
/* GPP_A12 - GPIO */
/* DW0: 0x80880102, DW1: 0x00000000 */
/* PAD_CFG_GPI_SCI(GPP_A12, NONE, PLTRST, LEVEL, INVERT), */
{ GPIO_SKL_H_GPP_A12, { GpioPadModeGpio, GpioHostOwnAcpi, GpioDirInInvOut, GpioOutLow, GpioIntSci | GpioIntLvlEdgDis, GpioResetNormal, GpioTermNone, GpioPadConfigLock },
```
### Supports Chipsets
Sunrise PCH, Lewisburg PCH, Apollo Lake SoC, CannonLake-LP SoCs