4a45ab8bd3
While I was working on updating the headers to move copyrights into the AUTHORS file, I got a request to switch to SPDX headers as well. Linux has moved completely to SPDX headers, which are easier to maintain, have good definitions, are very short, and can be checked automatically. This is completely unlike our current header situation. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: Ie86d34f7fa7bf7434ad8a38aa1eadcfece7124b3 Reviewed-on: https://review.coreboot.org/c/coreboot/+/36176 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
51 lines
995 B
C
51 lines
995 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* This file is part of the coreboot project. */
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#include "sata.h"
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#include <arch/acpi.h>
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#include <arch/acpigen.h>
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/* e.g.
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* generate_sata_ssdt_ports("\_SB.PCI0.SATA", 0x3);
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* generates:
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* Scope (\_SB.PCI0.SATA)
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* {
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* Device (PR00)
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* {
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* Name (_ADR, 0x0000FFFF) // _ADR: Address
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* }
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*
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* Device (PR01)
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* {
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* Name (_ADR, 0x0001FFFF) // _ADR: Address
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* }
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* }
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*
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*/
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void generate_sata_ssdt_ports(const char *scope, uint32_t enable_map)
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{
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int i;
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uint32_t bit;
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char port_name[4] = "PR00";
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acpigen_write_scope(scope);
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/* generate a device for every enabled port */
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for (i = 0; i < 32; i++) {
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bit = 1 << i;
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if (!(bit & enable_map))
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continue;
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port_name[2] = '0' + i / 10;
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port_name[3] = '0' + i % 10;
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acpigen_write_device(port_name);
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acpigen_write_name_dword("_ADR", 0xffff + i * 0x10000);
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acpigen_pop_len(); /* close PRT%d */
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}
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acpigen_pop_len(); /* close scope */
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}
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