1 // SPDX-License-Identifier: GPL-2.0-only
32 	if (memcmp(h->oem_id, "QCOM  ", ACPI_OEM_ID_SIZE))  in qdf2400_erratum_44_present()
35 	if (!memcmp(h->oem_table_id, "QDF2432 ", ACPI_OEM_TABLE_ID_SIZE))  in qdf2400_erratum_44_present()
38 	if (!memcmp(h->oem_table_id, "QDF2400 ", ACPI_OEM_TABLE_ID_SIZE) &&  in qdf2400_erratum_44_present()
39 			h->oem_revision == 1)  in qdf2400_erratum_44_present()
46  * APM X-Gene v1 and v2 UART hardware is an 16550 like device but has its
47  * register aligned to 32-bit. In addition, the BIOS also encoded the
54 	if (tb->interface_type != ACPI_DBG2_16550_COMPATIBLE)  in xgene_8250_erratum_present()
57 	if (memcmp(tb->header.oem_id, "APMC0D", ACPI_OEM_ID_SIZE) &&  in xgene_8250_erratum_present()
58 	    memcmp(tb->header.oem_id, "HPE   ", ACPI_OEM_ID_SIZE))  in xgene_8250_erratum_present()
61 	if (!memcmp(tb->header.oem_table_id, "XGENESPC",  in xgene_8250_erratum_present()
62 	    ACPI_OEM_TABLE_ID_SIZE) && tb->header.oem_revision == 0)  in xgene_8250_erratum_present()
65 	if (!memcmp(tb->header.oem_table_id, "ProLiant",  in xgene_8250_erratum_present()
66 	    ACPI_OEM_TABLE_ID_SIZE) && tb->header.oem_revision == 1)  in xgene_8250_erratum_present()
73  * acpi_parse_spcr() - parse ACPI SPCR table and add preferred console
96 		return -ENODEV;  in acpi_parse_spcr()
100 		return -ENOENT;  in acpi_parse_spcr()
102 	if (table->header.revision < 2)  in acpi_parse_spcr()
103 		pr_info("SPCR table version %d\n", table->header.revision);  in acpi_parse_spcr()
105 	if (table->serial_port.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {  in acpi_parse_spcr()
106 		u32 bit_width = table->serial_port.access_width;  in acpi_parse_spcr()
129 	switch (table->interface_type) {  in acpi_parse_spcr()
148 		err = -ENOENT;  in acpi_parse_spcr()
153 	 * SPCR 1.09 defines Precise Baud Rate Filed contains a specific  in acpi_parse_spcr()
154 	 * non-zero baud rate which overrides the value of the Configured  in acpi_parse_spcr()
155 	 * Baud Rate field. If this field is zero or not present, Configured  in acpi_parse_spcr()
156 	 * Baud Rate is used.  in acpi_parse_spcr()
158 	if (table->header.revision >= 4 && table->precise_baudrate)  in acpi_parse_spcr()
159 		baud_rate = table->precise_baudrate;  in acpi_parse_spcr()
160 	else switch (table->baud_rate) {  in acpi_parse_spcr()
181 		err = -ENOENT;  in acpi_parse_spcr()
187 	 * driver to implement the work-around.  in acpi_parse_spcr()
203 	if (qdf2400_erratum_44_present(&table->header)) {  in acpi_parse_spcr()
213 		 * For xgene v1 and v2 we don't know the clock rate of the  in acpi_parse_spcr()
214 		 * UART so don't attempt to change to the baud rate state  in acpi_parse_spcr()
222 			 table->serial_port.address);  in acpi_parse_spcr()
225 			 table->serial_port.address, baud_rate);  in acpi_parse_spcr()