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Diffstat (limited to 'drivers/firmware/pcdp.c')
-rw-r--r--drivers/firmware/pcdp.c135
1 files changed, 0 insertions, 135 deletions
diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
deleted file mode 100644
index 715a45442d..0000000000
--- a/drivers/firmware/pcdp.c
+++ /dev/null
@@ -1,135 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Parse the EFI PCDP table to locate the console device.
- *
- * (c) Copyright 2002, 2003, 2004 Hewlett-Packard Development Company, L.P.
- * Khalid Aziz <khalid.aziz@hp.com>
- * Alex Williamson <alex.williamson@hp.com>
- * Bjorn Helgaas <bjorn.helgaas@hp.com>
- */
-
-#include <linux/acpi.h>
-#include <linux/console.h>
-#include <linux/efi.h>
-#include <linux/serial.h>
-#include <linux/serial_core.h>
-#include <asm/vga.h>
-#include "pcdp.h"
-
-static int __init
-setup_serial_console(struct pcdp_uart *uart)
-{
-#ifdef CONFIG_SERIAL_8250_CONSOLE
- int mmio;
- static char options[64], *p = options;
- char parity;
-
- mmio = (uart->addr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY);
- p += sprintf(p, "uart8250,%s,0x%llx",
- mmio ? "mmio" : "io", uart->addr.address);
- if (uart->baud) {
- p += sprintf(p, ",%llu", uart->baud);
- if (uart->bits) {
- switch (uart->parity) {
- case 0x2: parity = 'e'; break;
- case 0x3: parity = 'o'; break;
- default: parity = 'n';
- }
- p += sprintf(p, "%c%d", parity, uart->bits);
- }
- }
-
- add_preferred_console("uart", 8250, &options[9]);
- return setup_earlycon(options);
-#else
- return -ENODEV;
-#endif
-}
-
-static int __init
-setup_vga_console(struct pcdp_device *dev)
-{
-#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
- u8 *if_ptr;
-
- if_ptr = ((u8 *)dev + sizeof(struct pcdp_device));
- if (if_ptr[0] == PCDP_IF_PCI) {
- struct pcdp_if_pci if_pci;
-
- /* struct copy since ifptr might not be correctly aligned */
-
- memcpy(&if_pci, if_ptr, sizeof(if_pci));
-
- if (if_pci.trans & PCDP_PCI_TRANS_IOPORT)
- vga_console_iobase = if_pci.ioport_tra;
-
- if (if_pci.trans & PCDP_PCI_TRANS_MMIO)
- vga_console_membase = if_pci.mmio_tra;
- }
-
- if (efi_mem_type(vga_console_membase + 0xA0000) == EFI_CONVENTIONAL_MEMORY) {
- printk(KERN_ERR "PCDP: VGA selected, but frame buffer is not MMIO!\n");
- return -ENODEV;
- }
-
- conswitchp = &vga_con;
- printk(KERN_INFO "PCDP: VGA console\n");
- return 0;
-#else
- return -ENODEV;
-#endif
-}
-
-extern unsigned long hcdp_phys;
-
-int __init
-efi_setup_pcdp_console(char *cmdline)
-{
- struct pcdp *pcdp;
- struct pcdp_uart *uart;
- struct pcdp_device *dev, *end;
- int i, serial = 0;
- int rc = -ENODEV;
-
- if (hcdp_phys == EFI_INVALID_TABLE_ADDR)
- return -ENODEV;
-
- pcdp = early_memremap(hcdp_phys, 4096);
- printk(KERN_INFO "PCDP: v%d at 0x%lx\n", pcdp->rev, hcdp_phys);
-
- if (strstr(cmdline, "console=hcdp")) {
- if (pcdp->rev < 3)
- serial = 1;
- } else if (strstr(cmdline, "console=")) {
- printk(KERN_INFO "Explicit \"console=\"; ignoring PCDP\n");
- goto out;
- }
-
- if (pcdp->rev < 3 && efi_uart_console_only())
- serial = 1;
-
- for (i = 0, uart = pcdp->uart; i < pcdp->num_uarts; i++, uart++) {
- if (uart->flags & PCDP_UART_PRIMARY_CONSOLE || serial) {
- if (uart->type == PCDP_CONSOLE_UART) {
- rc = setup_serial_console(uart);
- goto out;
- }
- }
- }
-
- end = (struct pcdp_device *) ((u8 *) pcdp + pcdp->length);
- for (dev = (struct pcdp_device *) (pcdp->uart + pcdp->num_uarts);
- dev < end;
- dev = (struct pcdp_device *) ((u8 *) dev + dev->length)) {
- if (dev->flags & PCDP_PRIMARY_CONSOLE) {
- if (dev->type == PCDP_CONSOLE_VGA) {
- rc = setup_vga_console(dev);
- goto out;
- }
- }
- }
-
-out:
- early_memunmap(pcdp, 4096);
- return rc;
-}