Attachment #128793 for bug #189470

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Lines 850-860 Link Here

(-)a/Documentation/kernel-parameters.txt (-5 lines)
850	lasi= [HW,SCSI] PARISC LASI driver for the 53c700 chip	850	lasi= [HW,SCSI] PARISC LASI driver for the 53c700 chip
851	Format: addr:<io>,irq:<irq>	851	Format: addr:<io>,irq:<irq>
852		852
853	legacy_serial.force [HW,IA-32,X86-64]
854	Probe for COM ports at legacy addresses even
855	if PNPBIOS or ACPI should describe them. This
856	is for working around firmware defects.
857
858	llsc*= [IA64] See function print_params() in	853	llsc*= [IA64] See function print_params() in
859	arch/ia64/sn/kernel/llsc4.c.	854	arch/ia64/sn/kernel/llsc4.c.
860		855

Lines 35-41 Link Here

(-)a/arch/i386/kernel/Makefile (-1 lines)
35	obj-$(CONFIG_ACPI_SRAT) += srat.o	35	obj-$(CONFIG_ACPI_SRAT) += srat.o
36	obj-$(CONFIG_EFI) += efi.o efi_stub.o	36	obj-$(CONFIG_EFI) += efi.o efi_stub.o
37	obj-$(CONFIG_DOUBLEFAULT) += doublefault.o	37	obj-$(CONFIG_DOUBLEFAULT) += doublefault.o
38	obj-$(CONFIG_SERIAL_8250) += legacy_serial.o
39	obj-$(CONFIG_VM86) += vm86.o	38	obj-$(CONFIG_VM86) += vm86.o
40	obj-$(CONFIG_EARLY_PRINTK) += early_printk.o	39	obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
41	obj-$(CONFIG_HPET_TIMER) += hpet.o	40	obj-$(CONFIG_HPET_TIMER) += hpet.o




/*
 * Legacy COM port devices for x86 platforms without PNPBIOS or ACPI.
 * Data taken from include/asm-i386/serial.h.
 *
 * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
 *	Bjorn Helgaas <bjorn.helgaas@hp.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pnp.h>
#include <linux/serial_8250.h>

/* Standard COM flags (except for COM4, because of the 8514 problem) */
#ifdef CONFIG_SERIAL_DETECT_IRQ
#define COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
#define COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
#else
#define COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
#define COM4_FLAGS UPF_BOOT_AUTOCONF
#endif

#define PORT(_base,_irq,_flags)				\
	{						\
		.iobase		= _base,		\
		.irq		= _irq,			\
		.uartclk	= 1843200,		\
		.iotype		= UPIO_PORT,		\
		.flags		= _flags,		\
	}

static struct plat_serial8250_port x86_com_data[] = {
	PORT(0x3F8, 4, COM_FLAGS),
	PORT(0x2F8, 3, COM_FLAGS),
	PORT(0x3E8, 4, COM_FLAGS),
	PORT(0x2E8, 3, COM4_FLAGS),
	{ },
};

static struct platform_device x86_com_device = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM,
	.dev			= {
		.platform_data	= x86_com_data,
	},
};

static int force_legacy_probe;
module_param_named(force, force_legacy_probe, bool, 0);
MODULE_PARM_DESC(force, "Force legacy serial port probe");

static int __init serial8250_x86_com_init(void)
{
	if (pnp_platform_devices && !force_legacy_probe)
		return -ENODEV;

	return platform_device_register(&x86_com_device);
}

module_init(serial8250_x86_com_init);

MODULE_AUTHOR("Bjorn Helgaas");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Generic 8250/16x50 legacy probe module");




	depends on SERIAL_8250 && PCI
	default SERIAL_8250
	help
	  This builds standard PCI serial support. You may be able to
	  disable this feature if you only need legacy serial support.
	  Saves about 9K.
	  will be called 8250_pci.

config SERIAL_8250_PNP
	tristate "8250/16550 PNP device support" if EMBEDDED
	depends on SERIAL_8250 && PNP
	default SERIAL_8250
	help
	  This builds standard PNP serial support. You may be able to
	  disable this feature if you only need legacy serial support.

	  To compile this driver as a module, choose M here: the module
	  will be called 8250_pnp.

config SERIAL_8250_HP300
	tristate




 * megabits/second; but this requires the faster clock.
 */
#define BASE_BAUD ( 1843200 / 16 )

/* Standard COM flags (except for COM4, because of the 8514 problem) */
#ifdef CONFIG_SERIAL_DETECT_IRQ
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
#else
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
#endif

#define SERIAL_PORT_DFNS			\
	/* UART CLK   PORT IRQ     FLAGS        */			\
	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */




 * megabits/second; but this requires the faster clock.
 */
#define BASE_BAUD ( 1843200 / 16 )

/* Standard COM flags (except for COM4, because of the 8514 problem) */
#ifdef CONFIG_SERIAL_DETECT_IRQ
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
#else
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
#endif

#define SERIAL_PORT_DFNS			\
	/* UART CLK   PORT IRQ     FLAGS        */			\
	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */

Return to bug 189470

Lines 1-67 Link Here

(-)a/arch/i386/kernel/legacy_serial.c (-67 lines)
1	/*
2	* Legacy COM port devices for x86 platforms without PNPBIOS or ACPI.
3	* Data taken from include/asm-i386/serial.h.
4	*
5	* (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
6	* Bjorn Helgaas <bjorn.helgaas@hp.com>
7	*
8	* This program is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License version 2 as
10	* published by the Free Software Foundation.
11	*/
12	#include <linux/module.h>
13	#include <linux/init.h>
14	#include <linux/pnp.h>
15	#include <linux/serial_8250.h>
16
17	/* Standard COM flags (except for COM4, because of the 8514 problem) */
18	#ifdef CONFIG_SERIAL_DETECT_IRQ
19	#define COM_FLAGS (UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST \| UPF_AUTO_IRQ)
20	#define COM4_FLAGS (UPF_BOOT_AUTOCONF \| UPF_AUTO_IRQ)
21	#else
22	#define COM_FLAGS (UPF_BOOT_AUTOCONF \| UPF_SKIP_TEST)
23	#define COM4_FLAGS UPF_BOOT_AUTOCONF
24	#endif
25
26	#define PORT(_base,_irq,_flags) \
27	{ \
28	.iobase = _base, \
29	.irq = _irq, \
30	.uartclk = 1843200, \
31	.iotype = UPIO_PORT, \
32	.flags = _flags, \
33	}
34
35	static struct plat_serial8250_port x86_com_data[] = {
36	PORT(0x3F8, 4, COM_FLAGS),
37	PORT(0x2F8, 3, COM_FLAGS),
38	PORT(0x3E8, 4, COM_FLAGS),
39	PORT(0x2E8, 3, COM4_FLAGS),
40	{ },
41	};
42
43	static struct platform_device x86_com_device = {
44	.name = "serial8250",
45	.id = PLAT8250_DEV_PLATFORM,
46	.dev = {
47	.platform_data = x86_com_data,
48	},
49	};
50
51	static int force_legacy_probe;
52	module_param_named(force, force_legacy_probe, bool, 0);
53	MODULE_PARM_DESC(force, "Force legacy serial port probe");
54
55	static int __init serial8250_x86_com_init(void)
56	{
57	if (pnp_platform_devices && !force_legacy_probe)
58	return -ENODEV;
59
60	return platform_device_register(&x86_com_device);
61	}
62
63	module_init(serial8250_x86_com_init);
64
65	MODULE_AUTHOR("Bjorn Helgaas");
66	MODULE_LICENSE("GPL");
67	MODULE_DESCRIPTION("Generic 8250/16x50 legacy probe module");

Lines 32-38 Link Here

(-)a/arch/x86_64/kernel/Makefile (-2 lines)
32	obj-$(CONFIG_IOMMU) += pci-gart.o aperture.o	32	obj-$(CONFIG_IOMMU) += pci-gart.o aperture.o
33	obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary.o tce.o	33	obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary.o tce.o
34	obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o	34	obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
35	obj-$(CONFIG_SERIAL_8250) += legacy_serial.o
36	obj-$(CONFIG_KPROBES) += kprobes.o	35	obj-$(CONFIG_KPROBES) += kprobes.o
37	obj-$(CONFIG_X86_PM_TIMER) += pmtimer.o	36	obj-$(CONFIG_X86_PM_TIMER) += pmtimer.o
38	obj-$(CONFIG_X86_VSMP) += vsmp.o	37	obj-$(CONFIG_X86_VSMP) += vsmp.o
Lines 50-56 Link Here
50		49
51	therm_throt-y += ../../i386/kernel/cpu/mcheck/therm_throt.o	50	therm_throt-y += ../../i386/kernel/cpu/mcheck/therm_throt.o
52	bootflag-y += ../../i386/kernel/bootflag.o	51	bootflag-y += ../../i386/kernel/bootflag.o
53	legacy_serial-y += ../../i386/kernel/legacy_serial.o
54	cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o	52	cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o
55	topology-y += ../../i386/kernel/topology.o	53	topology-y += ../../i386/kernel/topology.o
56	microcode-$(subst m,y,$(CONFIG_MICROCODE)) += ../../i386/kernel/microcode.o	54	microcode-$(subst m,y,$(CONFIG_MICROCODE)) += ../../i386/kernel/microcode.o

Lines 74-94 Link Here

(-)a/drivers/serial/Kconfig (-9 / +5 lines)
74	depends on SERIAL_8250 && PCI	74	depends on SERIAL_8250 && PCI
75	default SERIAL_8250	75	default SERIAL_8250
76	help	76	help
77	Say Y here if you have PCI serial ports.	77	This builds standard PCI serial support. You may be able to
78		78	disable this feature if you only need legacy serial support.
79	To compile this driver as a module, choose M here: the module	79	Saves about 9K.
80	will be called 8250_pci.
81		80
82	config SERIAL_8250_PNP	81	config SERIAL_8250_PNP
83	tristate "8250/16550 PNP device support" if EMBEDDED	82	tristate "8250/16550 PNP device support" if EMBEDDED
84	depends on SERIAL_8250 && PNP	83	depends on SERIAL_8250 && PNP
85	default SERIAL_8250	84	default SERIAL_8250
86	help	85	help
87	Say Y here if you have serial ports described by PNPBIOS or ACPI.	86	This builds standard PNP serial support. You may be able to
88	These are typically ports built into the system board.	87	disable this feature if you only need legacy serial support.
89
90	To compile this driver as a module, choose M here: the module
91	will be called 8250_pnp.
92		88
93	config SERIAL_8250_HP300	89	config SERIAL_8250_HP300
94	tristate	90	tristate

Lines 11-13 Link Here

(-)a/include/asm-i386/serial.h (+16 lines)
11	* megabits/second; but this requires the faster clock.	11	* megabits/second; but this requires the faster clock.
12	*/	12	*/
13	#define BASE_BAUD ( 1843200 / 16 )	13	#define BASE_BAUD ( 1843200 / 16 )
		14
		15	/* Standard COM flags (except for COM4, because of the 8514 problem) */
		16	#ifdef CONFIG_SERIAL_DETECT_IRQ
		17	#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF \| ASYNC_SKIP_TEST \| ASYNC_AUTO_IRQ)
		18	#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF \| ASYNC_AUTO_IRQ)
		19	#else
		20	#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF \| ASYNC_SKIP_TEST)
		21	#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
		22	#endif
		23
		24	#define SERIAL_PORT_DFNS \
		25	/* UART CLK PORT IRQ FLAGS */ \
		26	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
		27	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
		28	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
		29	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */

Lines 11-13 Link Here

(-)a/include/asm-x86_64/serial.h (+16 lines)
11	* megabits/second; but this requires the faster clock.	11	* megabits/second; but this requires the faster clock.
12	*/	12	*/
13	#define BASE_BAUD ( 1843200 / 16 )	13	#define BASE_BAUD ( 1843200 / 16 )
		14
		15	/* Standard COM flags (except for COM4, because of the 8514 problem) */
		16	#ifdef CONFIG_SERIAL_DETECT_IRQ
		17	#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF \| ASYNC_SKIP_TEST \| ASYNC_AUTO_IRQ)
		18	#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF \| ASYNC_AUTO_IRQ)
		19	#else
		20	#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF \| ASYNC_SKIP_TEST)
		21	#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
		22	#endif
		23
		24	#define SERIAL_PORT_DFNS \
		25	/* UART CLK PORT IRQ FLAGS */ \
		26	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
		27	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
		28	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
		29	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */