hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[ARM] Add rtc-cmos driver for ISA-based footbridge platforms 

... but the rtc-cmos is rather broken; if PNP is enabled, it assumes
that we have ACPI (!) which is quite bogus on these platforms -
which may have ISAPNP but not ACPI.  Something to be solved in the
future.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2007-09-30 17:39:05 +01:00 committed by Russell King
parent 883042d6ea
commit cba774ae87
1 changed files with 44 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
arch/arm/mach-footbridge/isa.c
View File

@ -12,6 +12,39 @@
#include <asm/irq.h>
static struct resource rtc_resources[] = {
[0] = {
.start = 0x70,
.end = 0x73,
.flags = IORESOURCE_IO,
},
[1] = {
.start = IRQ_ISA_RTC_ALARM,
.end = IRQ_ISA_RTC_ALARM,
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device rtc_device = {
.name = "rtc_cmos",
.id = -1,
.resource = rtc_resources,
.num_resources = ARRAY_SIZE(rtc_resources),
};
static struct resource serial_resources[] = {
[0] = {
.start = 0x3f8,
.end = 0x3ff,
.flags = IORESOURCE_IO,
},
[1] = {
.start = 0x2f8,
.end = 0x2ff,
.flags = IORESOURCE_IO,
},
};
static struct plat_serial8250_port serial_platform_data[] = {
{
.iobase = 0x3f8,
@ -38,11 +71,21 @@ static struct platform_device serial_device = {
.dev = {
.platform_data = serial_platform_data,
},
.resource = serial_resources,
.num_resources = ARRAY_SIZE(serial_resources),
};
static int __init footbridge_isa_init(void)
{
return platform_device_register(&serial_device);
int err;
err = platform_device_register(&rtc_device);
if (err)
printk(KERN_ERR "Unable to register RTC device: %d\n", err);
err = platform_device_register(&serial_device);
if (err)
printk(KERN_ERR "Unable to register serial device: %d\n", err);
return 0;
}
arch_initcall(footbridge_isa_init);