6c4edff487
Currently coreboot and EC had different logic to interpret TCSS port number which would break retimer update functionality since coreboot would pass wrong port information to EC. This change clones the implementation on Alder Lake which converts the phyiscal port mapping to EC's abstract port mapping. BUG=b:207057940 BRANCH=None Signed-off-by: John Zhao <john.zhao@intel.com> Change-Id: If4451598dbb83528ae6d88dbc1b65c206f24fe1f Reviewed-on: https://review.coreboot.org/c/coreboot/+/60972 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
33 lines
735 B
C
33 lines
735 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#include <console/console.h>
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#include <device/device.h>
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#include <drivers/intel/usb4/retimer/retimer.h>
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#include <intelblocks/tcss.h>
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int retimer_get_index_for_typec(uint8_t typec_port)
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{
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int ec_port = 0;
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const struct device *tcss_port_arr[] = {
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DEV_PTR(tcss_usb3_port1),
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DEV_PTR(tcss_usb3_port2),
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DEV_PTR(tcss_usb3_port3),
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DEV_PTR(tcss_usb3_port4),
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};
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for (uint8_t i = 0; i < MAX_TYPE_C_PORTS; i++) {
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if (i == typec_port) {
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printk(BIOS_ERR, "USB Type-C %d mapped to EC port %d\n", typec_port,
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ec_port);
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return ec_port;
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}
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if (is_dev_enabled(tcss_port_arr[i]))
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ec_port++;
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}
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// Code should not come here if typec_port input is correct
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return -1;
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}
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