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coreboot-kgpe-d16/src/lib/espi_debug.c

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espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <espi.h>
#include <stdint.h>
void espi_show_slave_general_configuration(uint32_t config)
{
uint32_t io_mode;
uint32_t op_freq;
printk(BIOS_DEBUG, "eSPI Slave configuration:\n");
if (config & ESPI_SLAVE_CRC_ENABLE)
printk(BIOS_DEBUG, " CRC checking enabled\n");
if (config & ESPI_SLAVE_RESP_MOD_ENABLE)
printk(BIOS_DEBUG, " Response modifier enabled\n");
if (config & ESPI_SLAVE_ALERT_MODE_PIN)
printk(BIOS_DEBUG, " Dedicated Alert# used to signal alert event\n");
else
printk(BIOS_DEBUG, " IO bit1 pin used to signal alert event\n");
io_mode = config & ESPI_SLAVE_IO_MODE_SEL_MASK;
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
switch (io_mode) {
case ESPI_SLAVE_IO_MODE_SEL_SINGLE:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI single IO mode selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
case ESPI_SLAVE_IO_MODE_SEL_DUAL:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI dual IO mode selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
case ESPI_SLAVE_IO_MODE_SEL_QUAD:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI quad IO mode selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
default:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " Error: Invalid eSPI IO mode selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
}
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
io_mode = config & ESPI_SLAVE_IO_MODE_SUPP_MASK;
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
switch (io_mode) {
case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_QUAD:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI quad and single IO modes supported\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL:
printk(BIOS_DEBUG, " eSPI dual and single IO modes supported\n");
break;
case ESPI_SLAVE_IO_MODE_SUPP_SINGLE_DUAL_QUAD:
printk(BIOS_DEBUG, " eSPI quad, dual and single IO modes supported\n");
break;
default:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " Only eSPI single IO mode supported\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
}
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
if (config & ESPI_SLAVE_OPEN_DRAIN_ALERT_SEL)
printk(BIOS_DEBUG, " Alert# pin is open-drain\n");
else
printk(BIOS_DEBUG, " Alert# pin is driven\n");
op_freq = config & ESPI_SLAVE_OP_FREQ_SEL_MASK;
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
switch (op_freq) {
case ESPI_SLAVE_OP_FREQ_SEL_20_MHZ:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI 20MHz selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
case ESPI_SLAVE_OP_FREQ_SEL_25_MHZ:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI 25MHz selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
case ESPI_SLAVE_OP_FREQ_SEL_33_MHZ:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI 33MHz selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
case ESPI_SLAVE_OP_FREQ_SEL_50_MHZ:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI 50MHz selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
case ESPI_SLAVE_OP_FREQ_SEL_66_MHZ:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " eSPI 66MHz selected\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
break;
default:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " Error: Invalid eSPI frequency\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
}
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
if (config & ESPI_SLAVE_OPEN_DRAIN_ALERT_SUPP)
printk(BIOS_DEBUG, " Open-drain Alert# pin supported\n");
op_freq = config & ESPI_SLAVE_OP_FREQ_SUPP_MASK;
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
switch (op_freq) {
case ESPI_SLAVE_OP_FREQ_SUPP_20_MHZ:
printk(BIOS_DEBUG, " eSPI up to 20MHz supported\n");
break;
case ESPI_SLAVE_OP_FREQ_SUPP_25_MHZ:
printk(BIOS_DEBUG, " eSPI up to 25MHz supported\n");
break;
case ESPI_SLAVE_OP_FREQ_SUPP_33_MHZ:
printk(BIOS_DEBUG, " eSPI up to 33MHz supported\n");
break;
case ESPI_SLAVE_OP_FREQ_SUPP_50_MHZ:
printk(BIOS_DEBUG, " eSPI up to 50MHz supported\n");
break;
case ESPI_SLAVE_OP_FREQ_SUPP_66_MHZ:
printk(BIOS_DEBUG, " eSPI up to 66MHz supported\n");
break;
default:
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " Error: Invalid eSPI frequency\n");
espi_debug: Use switch case instead of if-else This change updates espi_debug.c to use switch case instead of if-else for operating frequency and i/o mode prints. This is done to address the review comments received on CB:41254. Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I4f323b79f030818e2daa983d4f17ddf7a3192171 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41346 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-13 00:46:16 +02:00
}
espi: Add support for debug helper to print slave capabilities This change adds a Kconfig option to enable eSPI debugging that pulls in a helper function to print slave capabilities. BUG=b:153675913 Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: I8ff250fe85dfa9370bf93ce3c7e2de5c069bf9e9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41254 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-05-11 21:11:27 +02:00
printk(BIOS_DEBUG, " Maximum Wait state: %d\n",
(config & ESPI_SLAVE_MAX_WAIT_MASK) >> ESPI_SLAVE_MAX_WAIT_SHIFT);
if (config & ESPI_SLAVE_PERIPH_CH_SUPP)
printk(BIOS_DEBUG, " Peripheral Channel supported\n");
if (config & ESPI_SLAVE_VW_CH_SUPP)
printk(BIOS_DEBUG, " Virtual Wire Channel supported\n");
if (config & ESPI_SLAVE_OOB_CH_SUPP)
printk(BIOS_DEBUG, " OOB Channel supported\n");
if (config & ESPI_SLAVE_FLASH_CH_SUPP)
printk(BIOS_DEBUG, " Flash Access Channel supported\n");
printk(BIOS_DEBUG, "\n");
}
lib/espi_debug: Add espi_show_slave_peripheral_channel_configuration Prints out the following: eSPI Slave Peripheral configuration: Peripheral Channel Maximum Read Request Size: 64 bytes Peripheral Channel Maximum Payload Size Selected: 64 bytes Peripheral Channel Maximum Payload Size Supported: 64 bytes Bus master: disabled Peripheral Channel: ready Peripheral Channel: enabled BUG=none TEST=boot guybrush Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: I7d598ee4f0f9d8ec0b37767e6a5a70288be2cb86 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52225 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
2021-04-09 22:03:37 +02:00
void espi_show_slave_peripheral_channel_configuration(uint32_t config)
{
uint32_t request_size;
uint32_t payload_size;
printk(BIOS_DEBUG, "eSPI Slave Peripheral configuration:\n");
printk(BIOS_DEBUG, " Peripheral Channel Maximum Read Request Size: ");
request_size = config & ESPI_SLAVE_PERIPH_MAX_READ_SIZE_MASK;
switch (request_size) {
case ESPI_SLAVE_PERIPH_MAX_READ_64B:
printk(BIOS_DEBUG, "64 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_READ_128B:
printk(BIOS_DEBUG, "128 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_READ_256B:
printk(BIOS_DEBUG, "256 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_READ_512B:
printk(BIOS_DEBUG, "512 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_READ_1024B:
printk(BIOS_DEBUG, "1024 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_READ_2048B:
printk(BIOS_DEBUG, "2048 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_READ_4096B:
printk(BIOS_DEBUG, "4096 bytes\n");
break;
default:
printk(BIOS_DEBUG, "Unknown\n");
}
printk(BIOS_DEBUG, " Peripheral Channel Maximum Payload Size Selected: ");
payload_size = config & ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_MASK;
switch (payload_size) {
case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_64B:
printk(BIOS_DEBUG, "64 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_128B:
printk(BIOS_DEBUG, "128 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SEL_256B:
printk(BIOS_DEBUG, "256 bytes\n");
break;
default:
printk(BIOS_DEBUG, "Unknown\n");
}
printk(BIOS_DEBUG, " Peripheral Channel Maximum Payload Size Supported: ");
payload_size = config & ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_MASK;
switch (payload_size) {
case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_64B:
printk(BIOS_DEBUG, "64 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_128B:
printk(BIOS_DEBUG, "128 bytes\n");
break;
case ESPI_SLAVE_PERIPH_MAX_PAYLOAD_SIZE_SUPP_256B:
printk(BIOS_DEBUG, "256 bytes\n");
break;
default:
printk(BIOS_DEBUG, "Unknown\n");
}
printk(BIOS_DEBUG, " Bus master: ");
if (config & ESPI_SLAVE_PERIPH_BUS_MASTER_ENABLE)
printk(BIOS_DEBUG, "enabled\n");
else
printk(BIOS_DEBUG, "disabled\n");
printk(BIOS_DEBUG, " Peripheral Channel: ");
if (config & ESPI_SLAVE_CHANNEL_READY)
printk(BIOS_DEBUG, "ready\n");
else
printk(BIOS_DEBUG, "not ready\n");
printk(BIOS_DEBUG, " Peripheral Channel: ");
if (config & ESPI_SLAVE_CHANNEL_ENABLE)
printk(BIOS_DEBUG, "enabled\n");
else
printk(BIOS_DEBUG, "disabled\n");
}
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