Commit cb8f55b9 authored by Wolfgang Grandegger's avatar Wolfgang Grandegger Committed by Ralf Baechle
Browse files

MIPS: Alchemy: Add basic support for the GPR board



From: Wolfgang Grandegger <wg@denx.de>

Add basic support for the General Purpose Router (GPR) board from
Trapeze ITS.
Signed-off-by: default avatarWolfgang Grandegger <wg@denx.de>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1460/

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent f6673653
......@@ -128,6 +128,15 @@ config MIPS_XXS1500
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_HAS_EARLY_PRINTK
config MIPS_GPR
bool "Trapeze ITS GPR board"
select SOC_AU1550
select HW_HAS_PCI
select DMA_NONCOHERENT
select MIPS_DISABLE_OBSOLETE_IDE
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_HAS_EARLY_PRINTK
endchoice
config SOC_AU1000
......
......@@ -100,6 +100,11 @@ load-$(CONFIG_MIPS_MTX1) += 0xffffffff80100000
platform-$(CONFIG_MIPS_XXS1500) += alchemy/xxs1500/
load-$(CONFIG_MIPS_XXS1500) += 0xffffffff80100000
#
# Trapeze ITS GRP board
#
platform-$(CONFIG_MIPS_GPR) += alchemy/gpr/
load-$(CONFIG_MIPS_GPR) += 0xffffffff80100000
# boards can specify their own <gpio.h> in one of their include dirs.
# If they do, placing this line here at the end will make sure the
......
#
# Copyright 2003 MontaVista Software Inc.
# Author: MontaVista Software, Inc. <source@mvista.com>
#
# Makefile for Trapeze ITS GPR board.
#
obj-y += board_setup.o init.o platform.o
/*
* Copyright 2010 Wolfgang Grandegger <wg@denx.de>
*
* Copyright 2000-2003, 2008 MontaVista Software Inc.
* Author: MontaVista Software, Inc. <source@mvista.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <asm/reboot.h>
#include <asm/mach-au1x00/au1000.h>
#include <prom.h>
#define UART1_ADDR KSEG1ADDR(UART1_PHYS_ADDR)
#define UART3_ADDR KSEG1ADDR(UART3_PHYS_ADDR)
char irq_tab_alchemy[][5] __initdata = {
[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff },
};
static void gpr_reset(char *c)
{
/* switch System-LED to orange (red# and green# on) */
alchemy_gpio_direction_output(4, 0);
alchemy_gpio_direction_output(5, 0);
/* trigger watchdog to reset board in 200ms */
printk(KERN_EMERG "Triggering watchdog soft reset...\n");
raw_local_irq_disable();
alchemy_gpio_direction_output(1, 0);
udelay(1);
alchemy_gpio_set_value(1, 1);
while (1)
cpu_wait();
}
static void gpr_power_off(void)
{
while (1)
cpu_wait();
}
void __init board_setup(void)
{
printk(KERN_INFO "Tarpeze ITS GPR board\n");
pm_power_off = gpr_power_off;
_machine_halt = gpr_power_off;
_machine_restart = gpr_reset;
/* Enable UART3 */
au_writel(0x1, UART3_ADDR + UART_MOD_CNTRL);/* clock enable (CE) */
au_writel(0x3, UART3_ADDR + UART_MOD_CNTRL); /* CE and "enable" */
/* Enable UART1 */
au_writel(0x1, UART1_ADDR + UART_MOD_CNTRL); /* clock enable (CE) */
au_writel(0x3, UART1_ADDR + UART_MOD_CNTRL); /* CE and "enable" */
/* Take away Reset of UMTS-card */
alchemy_gpio_direction_output(215, 1);
#ifdef CONFIG_PCI
#if defined(__MIPSEB__)
au_writel(0xf | (2 << 6) | (1 << 4), Au1500_PCI_CFG);
#else
au_writel(0xf, Au1500_PCI_CFG);
#endif
#endif
}
/*
* Copyright 2010 Wolfgang Grandegger <wg@denx.de>
*
* Copyright 2003, 2008 MontaVista Software Inc.
* Author: MontaVista Software, Inc. <source@mvista.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm/bootinfo.h>
#include <asm/mach-au1x00/au1000.h>
#include <prom.h>
const char *get_system_type(void)
{
return "GPR";
}
void __init prom_init(void)
{
unsigned char *memsize_str;
unsigned long memsize;
prom_argc = fw_arg0;
prom_argv = (char **)fw_arg1;
prom_envp = (char **)fw_arg2;
prom_init_cmdline();
memsize_str = prom_getenv("memsize");
if (!memsize_str)
memsize = 0x04000000;
else
strict_strtoul(memsize_str, 0, &memsize);
add_memory_region(0, memsize, BOOT_MEM_RAM);
}
void prom_putchar(unsigned char c)
{
alchemy_uart_putchar(UART0_PHYS_ADDR, c);
}
/*
* GPR board platform device registration
*
* Copyright (C) 2010 Wolfgang Grandegger <wg@denx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <asm/mach-au1x00/au1000.h>
/*
* Watchdog
*/
static struct resource gpr_wdt_resource[] = {
[0] = {
.start = 1,
.end = 1,
.name = "gpr-adm6320-wdt",
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device gpr_wdt_device = {
.name = "adm6320-wdt",
.id = 0,
.num_resources = ARRAY_SIZE(gpr_wdt_resource),
.resource = gpr_wdt_resource,
};
/*
* FLASH
*
* 0x00000000-0x00200000 : "kernel"
* 0x00200000-0x00a00000 : "rootfs"
* 0x01d00000-0x01f00000 : "config"
* 0x01c00000-0x01d00000 : "yamon"
* 0x01d00000-0x01d40000 : "yamon env vars"
* 0x00000000-0x00a00000 : "kernel+rootfs"
*/
static struct mtd_partition gpr_mtd_partitions[] = {
{
.name = "kernel",
.size = 0x00200000,
.offset = 0,
},
{
.name = "rootfs",
.size = 0x00800000,
.offset = MTDPART_OFS_APPEND,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "config",
.size = 0x00200000,
.offset = 0x01d00000,
},
{
.name = "yamon",
.size = 0x00100000,
.offset = 0x01c00000,
},
{
.name = "yamon env vars",
.size = 0x00040000,
.offset = MTDPART_OFS_APPEND,
},
{
.name = "kernel+rootfs",
.size = 0x00a00000,
.offset = 0,
},
};
static struct physmap_flash_data gpr_flash_data = {
.width = 4,
.nr_parts = ARRAY_SIZE(gpr_mtd_partitions),
.parts = gpr_mtd_partitions,
};
static struct resource gpr_mtd_resource = {
.start = 0x1e000000,
.end = 0x1fffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device gpr_mtd_device = {
.name = "physmap-flash",
.dev = {
.platform_data = &gpr_flash_data,
},
.num_resources = 1,
.resource = &gpr_mtd_resource,
};
/*
* LEDs
*/
static struct gpio_led gpr_gpio_leds[] = {
{ /* green */
.name = "gpr:green",
.gpio = 4,
.active_low = 1,
},
{ /* red */
.name = "gpr:red",
.gpio = 5,
.active_low = 1,
}
};
static struct gpio_led_platform_data gpr_led_data = {
.num_leds = ARRAY_SIZE(gpr_gpio_leds),
.leds = gpr_gpio_leds,
};
static struct platform_device gpr_led_devices = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpr_led_data,
}
};
/*
* I2C
*/
static struct i2c_gpio_platform_data gpr_i2c_data = {
.sda_pin = 209,
.sda_is_open_drain = 1,
.scl_pin = 210,
.scl_is_open_drain = 1,
.udelay = 2, /* ~100 kHz */
.timeout = HZ,
};
static struct platform_device gpr_i2c_device = {
.name = "i2c-gpio",
.id = -1,
.dev.platform_data = &gpr_i2c_data,
};
static struct i2c_board_info gpr_i2c_info[] __initdata = {
{
I2C_BOARD_INFO("lm83", 0x18),
.type = "lm83"
}
};
static struct platform_device *gpr_devices[] __initdata = {
&gpr_wdt_device,
&gpr_mtd_device,
&gpr_i2c_device,
&gpr_led_devices,
};
static int __init gpr_dev_init(void)
{
i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));
return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
}
device_initcall(gpr_dev_init);
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