diff options
Diffstat (limited to 'util')
| -rw-r--r-- | util/flash_fp_mcu | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/util/flash_fp_mcu b/util/flash_fp_mcu index bfa97f301a..d6d40179c6 100644 --- a/util/flash_fp_mcu +++ b/util/flash_fp_mcu @@ -293,24 +293,24 @@ config_nocturne() { } config_volteer() { - check_gpio_chip_exists "gpiochip252" - check_gpio_chip_exists "gpiochip445" + check_gpio_chip_exists "gpiochip152" readonly SPIDEV="/dev/spidev1.0" - # See - # third_party/coreboot/src/soc/intel/tigerlake/include/soc/gpio_soc_defs_tgl.h - # for pin name to number mapping. - # Examine `cat /sys/kernel/debug/pinctrl/INT34C5:02/gpio-ranges` and - # `cat /sys/kernel/debug/pinctrl/INT34C5:00/gpio-ranges` on a volteer - # device to determine gpio number from pin number. - - # FPMCU RST_ODL is on GPP_C23 = 252 + (211 - 188) = 275 - readonly GPIO_NRST=275 - # FPMCU BOOT0 is on GPP_C22 = 252 + (210 - 188) = 274 - readonly GPIO_BOOT0=274 - # FP_PWR_EN is on GPP_A21 = 445 + 63 = 508 - readonly GPIO_PWREN=508 + # See kernel/v5.4/drivers/pinctrl/intel/pinctrl-tigerlake.c + # for pin name and pin number. + # Examine `cat /sys/kernel/debug/pinctrl/INT34C5:00/gpio-ranges` on a + # volteer device to determine gpio number from pin number. + # For example: GPP_C23 is UART2_CTS which can be queried from EDS + # the pin number is 194. From the gpio-ranges, the gpio value is + # 408 + (194-171) = 431 + + # FPMCU RST_ODL is on GPP_C23 = 408 + (194 - 171) = 431 + readonly GPIO_NRST=431 + # FPMCU BOOT0 is on GPP_C22 = 408 + (193 - 171) = 430 + readonly GPIO_BOOT0=430 + # FP_PWR_EN is on GPP_A21 = 216 + (63 - 42) = 237 + readonly GPIO_PWREN=237 } # The "platform name" corresponds to the underlying board (reference design) |