Commit a16fffdd authored by Jonas Larsson's avatar Jonas Larsson Committed by Haavard Skinnemoen

Add Merisc board support

Merisc is the family name for a range of AVR32-based boards.

The boards are designed to be used in a man-machine interfacing
environment, utilizing a touch-based graphical user interface. They host
a vast range of I/O peripherals as well as a large SDRAM & Flash memory
bank.

For more information see: http://www.martinsson.se/meriscSigned-off-by: default avatarJonas Larsson <jonas.larsson@martinsson.se>
Signed-off-by: default avatarHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
parent 9477ab2b
......@@ -144,6 +144,19 @@ config BOARD_FAVR_32
bool "Favr-32 LCD-board"
select CPU_AT32AP7000
config BOARD_MERISC
bool "Merisc board"
select CPU_AT32AP7000
help
Merisc is the family name for a range of AVR32-based boards.
The boards are designed to be used in a man-machine
interfacing environment, utilizing a touch-based graphical
user interface. They host a vast range of I/O peripherals as
well as a large SDRAM & Flash memory bank.
For more information see: http://www.martinsson.se/merisc
config BOARD_MIMC200
bool "MIMC200 CPU board"
select CPU_AT32AP7000
......@@ -153,6 +166,7 @@ source "arch/avr32/boards/atstk1000/Kconfig"
source "arch/avr32/boards/atngw100/Kconfig"
source "arch/avr32/boards/hammerhead/Kconfig"
source "arch/avr32/boards/favr-32/Kconfig"
source "arch/avr32/boards/merisc/Kconfig"
choice
prompt "Boot loader type"
......
......@@ -35,6 +35,7 @@ core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/
core-$(CONFIG_BOARD_ATNGW100) += arch/avr32/boards/atngw100/
core-$(CONFIG_BOARD_HAMMERHEAD) += arch/avr32/boards/hammerhead/
core-$(CONFIG_BOARD_FAVR_32) += arch/avr32/boards/favr-32/
core-$(CONFIG_BOARD_MERISC) += arch/avr32/boards/merisc/
core-$(CONFIG_BOARD_MIMC200) += arch/avr32/boards/mimc200/
core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/
core-y += arch/avr32/kernel/
......
# Merisc customization
if BOARD_MERISC
endif # BOARD_MERISC
obj-y += setup.o flash.o display.o merisc_sysfs.o
/*
* Display setup code for the Merisc board
*
* Copyright (C) 2008 Martinsson Elektronik AB
*
* 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/init.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <video/atmel_lcdc.h>
#include <asm/setup.h>
#include <mach/board.h>
#include "merisc.h"
static struct fb_videomode merisc_fb_videomode[] = {
{
.refresh = 44,
.xres = 640,
.yres = 480,
.left_margin = 96,
.right_margin = 96,
.upper_margin = 34,
.lower_margin = 8,
.hsync_len = 64,
.vsync_len = 64,
.name = "640x480 @ 44",
.pixclock = KHZ2PICOS(25180),
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
};
static struct fb_monspecs merisc_fb_monspecs = {
.manufacturer = "Kyo",
.monitor = "TCG075VG2AD",
.modedb = merisc_fb_videomode,
.modedb_len = ARRAY_SIZE(merisc_fb_videomode),
.hfmin = 30000,
.hfmax = 33333,
.vfmin = 60,
.vfmax = 90,
.dclkmax = 30000000,
};
struct atmel_lcdfb_info merisc_lcdc_data = {
.default_bpp = 24,
.default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
.default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
| ATMEL_LCDC_MEMOR_BIG),
.default_monspecs = &merisc_fb_monspecs,
.guard_time = 2,
};
static int __init merisc_display_init(void)
{
at32_add_device_lcdc(0, &merisc_lcdc_data, fbmem_start,
fbmem_size, 0);
return 0;
}
device_initcall(merisc_display_init);
/*
* Merisc board-specific flash initialization
*
* Copyright (C) 2008 Martinsson Elektronik AB
*
* 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/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <mach/smc.h>
/* Will be translated to units of 14.3 ns, rounded up */
static struct smc_timing flash_timing __initdata = {
.ncs_read_setup = 1 * 14,
.nrd_setup = 5 * 14,
.ncs_write_setup = 1 * 14,
.nwe_setup = 2 * 14,
.ncs_read_pulse = 12 * 14,
.nrd_pulse = 7 * 14,
.ncs_write_pulse = 8 * 14,
.nwe_pulse = 4 * 14,
.read_cycle = 14 * 14,
.write_cycle = 10 * 14,
};
static struct smc_config flash_config __initdata = {
.bus_width = 2,
.nrd_controlled = 1,
.nwe_controlled = 1,
.byte_write = 1,
.tdf_cycles = 3,
};
static struct mtd_partition flash_0_parts[] = {
{
.name = "boot",
.offset = 0x00000000,
.size = 0x00060000,
.mask_flags = 0,
},
{
.name = "kernel",
.offset = 0x00060000,
.size = 0x00200000,
.mask_flags = 0,
},
{
.name = "root",
.offset = 0x00260000,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static struct mtd_partition flash_1_parts[] = {
{
.name = "2ndflash",
.offset = 0x00000000,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static struct physmap_flash_data flash_data[] = {
{
.width = 2,
.nr_parts = ARRAY_SIZE(flash_0_parts),
.parts = flash_0_parts,
},
{
.width = 2,
.nr_parts = ARRAY_SIZE(flash_1_parts),
.parts = flash_1_parts,
}
};
static struct resource flash_resource[] = {
{
.start = 0x00000000,
.end = 0x03ffffff,
.flags = IORESOURCE_MEM,
},
{
.start = 0x04000000,
.end = 0x07ffffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device flash_device[] = {
{
.name = "physmap-flash",
.id = 0,
.resource = &flash_resource[0],
.num_resources = 1,
.dev = {
.platform_data = &flash_data[0],
},
},
{
.name = "physmap-flash",
.id = 1,
.resource = &flash_resource[1],
.num_resources = 1,
.dev = {
.platform_data = &flash_data[1],
},
},
};
static int __init merisc_flash_init(void)
{
int ret;
smc_set_timing(&flash_config, &flash_timing);
ret = smc_set_configuration(0, &flash_config);
if (ret < 0) {
printk(KERN_ERR "Merisc: failed to set NOR flash timing #0\n");
return ret;
}
ret = smc_set_configuration(4, &flash_config);
if (ret < 0) {
printk(KERN_ERR "Merisc: failed to set NOR flash timing #1\n");
return ret;
}
platform_device_register(&flash_device[0]);
platform_device_register(&flash_device[1]);
return 0;
}
device_initcall(merisc_flash_init);
/*
* Merisc exports
*
* Copyright (C) 2008 Martinsson Elektronik AB
*
* 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.
*/
#ifndef __ARCH_AVR32_BOARDS_MERISC_MERISC_H
#define __ARCH_AVR32_BOARDS_MERISC_MERISC_H
const char *merisc_revision(void);
const char *merisc_model(void);
extern struct class merisc_class;
#endif /* __ARCH_AVR32_BOARDS_MERISC_MERISC_H */
/*
* Merisc sysfs exports
*
* Copyright (C) 2008 Martinsson Elektronik AB
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/sysdev.h>
#include <linux/timer.h>
#include <linux/err.h>
#include <linux/ctype.h>
#include "merisc.h"
static ssize_t merisc_model_show(struct class *class, char *buf)
{
ssize_t ret = 0;
sprintf(buf, "%s\n", merisc_model());
ret = strlen(buf) + 1;
return ret;
}
static ssize_t merisc_revision_show(struct class *class, char *buf)
{
ssize_t ret = 0;
sprintf(buf, "%s\n", merisc_revision());
ret = strlen(buf) + 1;
return ret;
}
static struct class_attribute merisc_class_attrs[] = {
__ATTR(model, S_IRUGO, merisc_model_show, NULL),
__ATTR(revision, S_IRUGO, merisc_revision_show, NULL),
__ATTR_NULL,
};
struct class merisc_class = {
.name = "merisc",
.owner = THIS_MODULE,
.class_attrs = merisc_class_attrs,
};
static int __init merisc_sysfs_init(void)
{
int status;
status = class_register(&merisc_class);
if (status < 0)
return status;
return 0;
}
postcore_initcall(merisc_sysfs_init);
/*
* Board-specific setup code for the Merisc
*
* Copyright (C) 2008 Martinsson Elektronik AB
*
* 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/clk.h>
#include <linux/etherdevice.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/linkage.h>
#include <linux/platform_device.h>
#include <linux/types.h>
#include <linux/leds.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/irq.h>
#include <linux/fb.h>
#include <linux/atmel-mci.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/gpio.h>
#include <mach/at32ap700x.h>
#include <mach/board.h>
#include <mach/init.h>
#include <mach/portmux.h>
#include "merisc.h"
/* Holds the autodetected board model and revision */
static int merisc_board_id;
/* Initialized by bootloader-specific startup code. */
struct tag *bootloader_tags __initdata;
/* Oscillator frequencies. These are board specific */
unsigned long at32_board_osc_rates[3] = {
[0] = 32768, /* 32.768 kHz on RTC osc */
[1] = 20000000, /* 20 MHz on osc0 */
[2] = 12000000, /* 12 MHz on osc1 */
};
struct eth_addr {
u8 addr[6];
};
static struct eth_addr __initdata hw_addr[2];
static struct eth_platform_data __initdata eth_data[2];
static int ads7846_get_pendown_state_PB26(void)
{
return !gpio_get_value(GPIO_PIN_PB(26));
}
static int ads7846_get_pendown_state_PB28(void)
{
return !gpio_get_value(GPIO_PIN_PB(28));
}
static struct ads7846_platform_data __initdata ads7846_data = {
.model = 7846,
.vref_delay_usecs = 100,
.vref_mv = 0,
.keep_vref_on = 0,
.settle_delay_usecs = 150,
.penirq_recheck_delay_usecs = 1,
.x_plate_ohms = 800,
.debounce_rep = 4,
.debounce_max = 10,
.debounce_tol = 50,
.get_pendown_state = ads7846_get_pendown_state_PB26,
.filter_init = NULL,
.filter = NULL,
.filter_cleanup = NULL,
};
static struct spi_board_info __initdata spi0_board_info[] = {
{
.modalias = "ads7846",
.max_speed_hz = 3250000,
.chip_select = 0,
.bus_num = 0,
.platform_data = &ads7846_data,
.mode = SPI_MODE_0,
},
};
static struct mci_platform_data __initdata mci0_data = {
.slot[0] = {
.bus_width = 4,
.detect_pin = GPIO_PIN_PE(19),
.wp_pin = GPIO_PIN_PE(20),
},
};
static int __init parse_tag_ethernet(struct tag *tag)
{
int i;
i = tag->u.ethernet.mac_index;
if (i < ARRAY_SIZE(hw_addr)) {
memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
sizeof(hw_addr[i].addr));
}
return 0;
}
__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
static void __init set_hw_addr(struct platform_device *pdev)
{
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
const u8 *addr;
void __iomem *regs;
struct clk *pclk;
if (!res)
return;
if (pdev->id >= ARRAY_SIZE(hw_addr))
return;
addr = hw_addr[pdev->id].addr;
if (!is_valid_ether_addr(addr))
return;
regs = (void __iomem __force *)res->start;
pclk = clk_get(&pdev->dev, "pclk");
if (!pclk)
return;
clk_enable(pclk);
__raw_writel((addr[3] << 24) | (addr[2] << 16)
| (addr[1] << 8) | addr[0], regs + 0x98);
__raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
clk_disable(pclk);
clk_put(pclk);
}
static struct i2c_gpio_platform_data i2c_gpio_data = {
.sda_pin = GPIO_PIN_PA(6),
.scl_pin = GPIO_PIN_PA(7),
.sda_is_open_drain = 1,
.scl_is_open_drain = 1,
.udelay = 2,
};
static struct platform_device i2c_gpio_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &i2c_gpio_data,
},
};
#ifdef CONFIG_LEDS_ATMEL_PWM
static struct gpio_led stk_pwm_led[] = {
{
.name = "backlight",
.gpio = 0, /* PWM channel 0 (LCD backlight) */
},
};
static struct gpio_led_platform_data stk_pwm_led_data = {
.num_leds = ARRAY_SIZE(stk_pwm_led),
.leds = stk_pwm_led,
};
static struct platform_device stk_pwm_led_dev = {
.name = "leds-atmel-pwm",
.id = -1,
.dev = {
.platform_data = &stk_pwm_led_data,
},
};
#endif
const char *merisc_model(void)
{
switch (merisc_board_id) {
case 0:
case 1:
return "500-01";
case 2:
return "BT";
default:
return "Unknown";
}
}
const char *merisc_revision(void)
{
switch (merisc_board_id) {
case 0:
return "B";
case 1:
return "D";
case 2:
return "A";
default:
return "Unknown";
}
}
static void detect_merisc_board_id(void)
{
/* Board ID pins MUST be set as input or the board may be damaged */
at32_select_gpio(GPIO_PIN_PA(24), AT32_GPIOF_PULLUP);
at32_select_gpio(GPIO_PIN_PA(25), AT32_GPIOF_PULLUP);
at32_select_gpio(GPIO_PIN_PA(26), AT32_GPIOF_PULLUP);
at32_select_gpio(GPIO_PIN_PA(27), AT32_GPIOF_PULLUP);
merisc_board_id = !gpio_get_value(GPIO_PIN_PA(24)) +
!gpio_get_value(GPIO_PIN_PA(25)) * 2 +
!gpio_get_value(GPIO_PIN_PA(26)) * 4 +
!gpio_get_value(GPIO_PIN_PA(27)) * 8;
}
void __init setup_board(void)
{
at32_map_usart(0, 0);
at32_map_usart(1, 1);
at32_map_usart(3, 3);
at32_setup_serial_console(1);
}
static int __init merisc_init(void)
{
detect_merisc_board_id();
printk(KERN_NOTICE "BOARD: Merisc %s revision %s\n", merisc_model(),
merisc_revision());
/* Reserve pins for SDRAM */
at32_reserve_pin(GPIO_PIOE_BASE, ATMEL_EBI_PE_DATA_ALL | (1 << 26));
if (merisc_board_id >= 1)
at32_map_usart(2, 2);
at32_add_device_usart(0);
at32_add_device_usart(1);
if (merisc_board_id >= 1)
at32_add_device_usart(2);
at32_add_device_usart(3);
set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
/* ADS7846 PENIRQ */
if (merisc_board_id == 0) {
ads7846_data.get_pendown_state = ads7846_get_pendown_state_PB26;
at32_select_periph(GPIO_PIOB_BASE, 1 << 26,
GPIO_PERIPH_A, AT32_GPIOF_PULLUP);
spi0_board_info[0].irq = AT32_EXTINT(1);
} else {
ads7846_data.get_pendown_state = ads7846_get_pendown_state_PB28;
at32_select_periph(GPIO_PIOB_BASE, 1 << 28, GPIO_PERIPH_A,
AT32_GPIOF_PULLUP);
spi0_board_info[0].irq = AT32_EXTINT(3);
}
/* ADS7846 busy pin */
at32_select_gpio(GPIO_PIN_PA(4), AT32_GPIOF_PULLUP);
at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
at32_add_device_mci(0, &mci0_data);
#ifdef CONFIG_LEDS_ATMEL_PWM
at32_add_device_pwm((1 << 0) | (1 << 2));
platform_device_register(&stk_pwm_led_dev);
#else
at32_add_device_pwm((1 << 2));
#endif
at32_select_gpio(i2c_gpio_data.sda_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
at32_select_gpio(i2c_gpio_data.scl_pin,
AT32_GPIOF_MULTIDRV | AT32_GPIOF_OUTPUT | AT32_GPIOF_HIGH);
platform_device_register(&i2c_gpio_device);
return 0;
}
postcore_initcall(merisc_init);
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