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