mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
f512626f5b
adds rtc support for all Gemini SoC boards nas4220b, rut1xx, wbd111, wbd222 Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
/*
|
|
* Common devices definition for Gemini
|
|
*
|
|
* Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
|
|
*
|
|
* 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/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/io.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/serial_8250.h>
|
|
#include <linux/mtd/physmap.h>
|
|
|
|
#include <mach/irqs.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/global_reg.h>
|
|
|
|
static struct plat_serial8250_port serial_platform_data[] = {
|
|
{
|
|
.membase = (void *)IO_ADDRESS(GEMINI_UART_BASE),
|
|
.mapbase = GEMINI_UART_BASE,
|
|
.irq = IRQ_UART,
|
|
.uartclk = UART_CLK,
|
|
.regshift = 2,
|
|
.iotype = UPIO_MEM,
|
|
.type = PORT_16550A,
|
|
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_FIXED_TYPE,
|
|
},
|
|
{},
|
|
};
|
|
|
|
static struct platform_device serial_device = {
|
|
.name = "serial8250",
|
|
.id = PLAT8250_DEV_PLATFORM,
|
|
.dev = {
|
|
.platform_data = serial_platform_data,
|
|
},
|
|
};
|
|
|
|
int platform_register_uart(void)
|
|
{
|
|
return platform_device_register(&serial_device);
|
|
}
|
|
|
|
static struct resource flash_resource = {
|
|
.start = GEMINI_FLASH_BASE,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct physmap_flash_data pflash_platform_data = {};
|
|
|
|
static struct platform_device pflash_device = {
|
|
.name = "physmap-flash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &pflash_platform_data,
|
|
},
|
|
.resource = &flash_resource,
|
|
.num_resources = 1,
|
|
};
|
|
|
|
int platform_register_pflash(unsigned int size, struct mtd_partition *parts,
|
|
unsigned int nr_parts)
|
|
{
|
|
unsigned int reg;
|
|
|
|
reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_STATUS);
|
|
|
|
if ((reg & FLASH_TYPE_MASK) != FLASH_TYPE_PARALLEL)
|
|
return -ENXIO;
|
|
|
|
if (reg & FLASH_WIDTH_16BIT)
|
|
pflash_platform_data.width = 2;
|
|
else
|
|
pflash_platform_data.width = 1;
|
|
|
|
/* enable parallel flash pins and disable others */
|
|
reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL);
|
|
reg &= ~PFLASH_PADS_DISABLE;
|
|
reg |= SFLASH_PADS_DISABLE | NAND_PADS_DISABLE;
|
|
__raw_writel(reg, IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL);
|
|
|
|
flash_resource.end = flash_resource.start + size - 1;
|
|
|
|
pflash_platform_data.parts = parts;
|
|
pflash_platform_data.nr_parts = nr_parts;
|
|
|
|
return platform_device_register(&pflash_device);
|
|
}
|
|
|
|
static struct resource gemini_rtc_resources[] = {
|
|
[0] = {
|
|
.start = GEMINI_RTC_BASE,
|
|
.end = GEMINI_RTC_BASE + 0x24,
|
|
.flags = IORESOURCE_MEM,
|
|
},
|
|
[1] = {
|
|
.start = IRQ_RTC,
|
|
.end = IRQ_RTC,
|
|
.flags = IORESOURCE_IRQ,
|
|
},
|
|
};
|
|
|
|
static struct platform_device gemini_rtc_device = {
|
|
.name = "rtc-gemini",
|
|
.id = 0,
|
|
.num_resources = ARRAY_SIZE(gemini_rtc_resources),
|
|
.resource = gemini_rtc_resources,
|
|
};
|
|
|
|
int __init platform_register_rtc(void)
|
|
{
|
|
return platform_device_register(&gemini_rtc_device);
|
|
}
|
|
|