diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/jasperlake/fsp_params.c | 126 |
1 files changed, 1 insertions, 125 deletions
diff --git a/src/soc/intel/jasperlake/fsp_params.c b/src/soc/intel/jasperlake/fsp_params.c index b787192f6f..ff9bfbfe72 100644 --- a/src/soc/intel/jasperlake/fsp_params.c +++ b/src/soc/intel/jasperlake/fsp_params.c @@ -7,6 +7,7 @@ #include <fsp/util.h> #include <intelblocks/lpss.h> #include <intelblocks/mp_init.h> +#include <intelblocks/pmclib.h> #include <intelblocks/xdci.h> #include <intelpch/lockdown.h> #include <soc/intel/common/vbt.h> @@ -42,38 +43,6 @@ static const pci_devfn_t serial_io_dev[] = { PCH_DEVFN_UART2 }; -/* List of Minimum Assertion durations in microseconds */ -enum min_assrt_dur { - MinAssrtDur0s = 0, - MinAssrtDur60us = 60, - MinAssrtDur1ms = 1000, - MinAssrtDur50ms = 50000, - MinAssrtDur98ms = 98000, - MinAssrtDur500ms = 500000, - MinAssrtDur1s = 1000000, - MinAssrtDur2s = 2000000, - MinAssrtDur3s = 3000000, - MinAssrtDur4s = 4000000, -}; - -/* Signal Assertion duration values */ -struct cfg_assrt_dur { - /* Minimum assertion duration of SLP_A signal */ - enum min_assrt_dur slp_a; - - /* Minimum assertion duration of SLP_4 signal */ - enum min_assrt_dur slp_s4; - - /* Minimum assertion duration of SLP_3 signal */ - enum min_assrt_dur slp_s3; - - /* PCH PM Power Cycle duration */ - enum min_assrt_dur pm_pwr_cyc_dur; -}; - -/* Default value of PchPmPwrCycDur */ -#define PCH_PM_PWR_CYC_DUR 0 - static void parse_devicetree(FSP_S_CONFIG *params) { const struct soc_intel_jasperlake_config *config = config_of_soc(); @@ -109,99 +78,6 @@ static void parse_devicetree(FSP_S_CONFIG *params) sizeof(config->SerialIoUartMode)); } -/* This function returns the highest assertion duration of the SLP_Sx assertion widths */ -static enum min_assrt_dur get_high_assrt_width(const struct cfg_assrt_dur *cfg_assrt_dur) -{ - enum min_assrt_dur max_assert_dur = cfg_assrt_dur->slp_s4; - - if (max_assert_dur < cfg_assrt_dur->slp_s3) - max_assert_dur = cfg_assrt_dur->slp_s3; - - if (max_assert_dur < cfg_assrt_dur->slp_a) - max_assert_dur = cfg_assrt_dur->slp_a; - - return max_assert_dur; -} - -/* This function converts assertion durations from register-encoded to microseconds */ -static void get_min_assrt_dur(uint8_t slp_s4_min_assrt, uint8_t slp_s3_min_assrt, - uint8_t slp_a_min_assrt, uint8_t pm_pwr_cyc_dur, - struct cfg_assrt_dur *cfg_assrt_dur) -{ - /* - * Ensure slp_x_dur_list[] elements in the devicetree config are in sync with - * FSP encoded values. - */ - - /* slp_s4_assrt_dur_list : 1s, 1s(default), 2s, 3s, 4s */ - const enum min_assrt_dur slp_s4_assrt_dur_list[] = { - MinAssrtDur1s, MinAssrtDur1s, MinAssrtDur2s, MinAssrtDur3s, MinAssrtDur4s - }; - - /* slp_s3_assrt_dur_list: 50ms, 60us, 1ms, 50ms (Default), 2s */ - const enum min_assrt_dur slp_s3_assrt_dur_list[] = { - MinAssrtDur50ms, MinAssrtDur60us, MinAssrtDur1ms, MinAssrtDur50ms, MinAssrtDur2s - }; - - /* slp_a_assrt_dur_list: 2s, 0s, 4s, 98ms, 2s(Default) */ - const enum min_assrt_dur slp_a_assrt_dur_list[] = { - MinAssrtDur2s, MinAssrtDur0s, MinAssrtDur4s, MinAssrtDur98ms, MinAssrtDur2s - }; - - /* pm_pwr_cyc_dur_list: 4s(Default), 1s, 2s, 3s, 4s */ - const enum min_assrt_dur pm_pwr_cyc_dur_list[] = { - MinAssrtDur4s, MinAssrtDur1s, MinAssrtDur2s, MinAssrtDur3s, MinAssrtDur4s - }; - - /* Get signal assertion width */ - if (slp_s4_min_assrt < ARRAY_SIZE(slp_s4_assrt_dur_list)) - cfg_assrt_dur->slp_s4 = slp_s4_assrt_dur_list[slp_s4_min_assrt]; - - if (slp_s3_min_assrt < ARRAY_SIZE(slp_s3_assrt_dur_list)) - cfg_assrt_dur->slp_s3 = slp_s3_assrt_dur_list[slp_s3_min_assrt]; - - if (slp_a_min_assrt < ARRAY_SIZE(slp_a_assrt_dur_list)) - cfg_assrt_dur->slp_a = slp_a_assrt_dur_list[slp_a_min_assrt]; - - if (pm_pwr_cyc_dur < ARRAY_SIZE(pm_pwr_cyc_dur_list)) - cfg_assrt_dur->pm_pwr_cyc_dur = pm_pwr_cyc_dur_list[pm_pwr_cyc_dur]; -} - -/* This function ensures that the duration programmed in the PchPmPwrCycDur will never be - * smaller than the SLP_Sx assertion widths. - * If the pm_pwr_cyc_dur is less than any of the SLP_Sx assertion widths then it returns the - * default value PCH_PM_PWR_CYC_DUR. - */ -static uint8_t get_pm_pwr_cyc_dur(uint8_t slp_s4_min_assrt, uint8_t slp_s3_min_assrt, - uint8_t slp_a_min_assrt, uint8_t pm_pwr_cyc_dur) -{ - /* Set default values for the minimum assertion duration */ - struct cfg_assrt_dur cfg_assrt_dur = { - .slp_a = MinAssrtDur2s, - .slp_s4 = MinAssrtDur1s, - .slp_s3 = MinAssrtDur50ms, - .pm_pwr_cyc_dur = MinAssrtDur4s - }; - - enum min_assrt_dur high_assrt_width; - - /* Convert assertion durations from register-encoded to microseconds */ - get_min_assrt_dur(slp_s4_min_assrt, slp_s3_min_assrt, slp_a_min_assrt, pm_pwr_cyc_dur, - &cfg_assrt_dur); - - /* Get the highest assertion duration among PCH EDS specified signals for pwr_cyc_dur */ - high_assrt_width = get_high_assrt_width(&cfg_assrt_dur); - - if (cfg_assrt_dur.pm_pwr_cyc_dur >= high_assrt_width) - return pm_pwr_cyc_dur; - - printk(BIOS_DEBUG, - "Set PmPwrCycDur to 4s as configured PmPwrCycDur (%d) violates PCH EDS " - "spec\n", pm_pwr_cyc_dur); - - return PCH_PM_PWR_CYC_DUR; -} - /* UPD parameters to be initialized before SiliconInit */ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) { |