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/merisc Signed-off-by: Jonas Larsson <jonas.larsson@martinsson.se> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
This commit is contained in:
Jonas Larsson
Haavard Skinnemoen
parent
9477ab2b2a
commit
a16fffdd8e
10 changed files with 1834 additions and 0 deletions
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@ -144,6 +144,19 @@ config BOARD_FAVR_32
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bool "Favr-32 LCD-board"
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select CPU_AT32AP7000
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config BOARD_MERISC
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bool "Merisc board"
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select CPU_AT32AP7000
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help
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Merisc is the family name for a range of AVR32-based boards.
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The boards are designed to be used in a man-machine
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interfacing environment, utilizing a touch-based graphical
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user interface. They host a vast range of I/O peripherals as
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well as a large SDRAM & Flash memory bank.
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For more information see: http://www.martinsson.se/merisc
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config BOARD_MIMC200
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bool "MIMC200 CPU board"
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select CPU_AT32AP7000
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@ -153,6 +166,7 @@ source "arch/avr32/boards/atstk1000/Kconfig"
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source "arch/avr32/boards/atngw100/Kconfig"
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source "arch/avr32/boards/hammerhead/Kconfig"
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source "arch/avr32/boards/favr-32/Kconfig"
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source "arch/avr32/boards/merisc/Kconfig"
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choice
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prompt "Boot loader type"
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@ -35,6 +35,7 @@ core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/
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core-$(CONFIG_BOARD_ATNGW100) += arch/avr32/boards/atngw100/
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core-$(CONFIG_BOARD_HAMMERHEAD) += arch/avr32/boards/hammerhead/
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core-$(CONFIG_BOARD_FAVR_32) += arch/avr32/boards/favr-32/
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core-$(CONFIG_BOARD_MERISC) += arch/avr32/boards/merisc/
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core-$(CONFIG_BOARD_MIMC200) += arch/avr32/boards/mimc200/
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core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/
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core-y += arch/avr32/kernel/
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5
arch/avr32/boards/merisc/Kconfig
Normal file
5
arch/avr32/boards/merisc/Kconfig
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@ -0,0 +1,5 @@
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# Merisc customization
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if BOARD_MERISC
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endif # BOARD_MERISC
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1
arch/avr32/boards/merisc/Makefile
Normal file
1
arch/avr32/boards/merisc/Makefile
Normal file
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@ -0,0 +1 @@
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obj-y += setup.o flash.o display.o merisc_sysfs.o
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65
arch/avr32/boards/merisc/display.c
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65
arch/avr32/boards/merisc/display.c
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@ -0,0 +1,65 @@
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/*
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* Display setup code for the Merisc board
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*
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* Copyright (C) 2008 Martinsson Elektronik AB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/fb.h>
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#include <video/atmel_lcdc.h>
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#include <asm/setup.h>
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#include <mach/board.h>
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#include "merisc.h"
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static struct fb_videomode merisc_fb_videomode[] = {
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{
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.refresh = 44,
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.xres = 640,
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.yres = 480,
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.left_margin = 96,
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.right_margin = 96,
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.upper_margin = 34,
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.lower_margin = 8,
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.hsync_len = 64,
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.vsync_len = 64,
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.name = "640x480 @ 44",
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.pixclock = KHZ2PICOS(25180),
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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};
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static struct fb_monspecs merisc_fb_monspecs = {
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.manufacturer = "Kyo",
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.monitor = "TCG075VG2AD",
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.modedb = merisc_fb_videomode,
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.modedb_len = ARRAY_SIZE(merisc_fb_videomode),
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.hfmin = 30000,
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.hfmax = 33333,
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.vfmin = 60,
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.vfmax = 90,
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.dclkmax = 30000000,
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};
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struct atmel_lcdfb_info merisc_lcdc_data = {
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.default_bpp = 24,
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.default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
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.default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
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| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
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| ATMEL_LCDC_MEMOR_BIG),
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.default_monspecs = &merisc_fb_monspecs,
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.guard_time = 2,
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};
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static int __init merisc_display_init(void)
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{
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at32_add_device_lcdc(0, &merisc_lcdc_data, fbmem_start,
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fbmem_size, 0);
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return 0;
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}
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device_initcall(merisc_display_init);
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139
arch/avr32/boards/merisc/flash.c
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139
arch/avr32/boards/merisc/flash.c
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@ -0,0 +1,139 @@
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/*
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* Merisc board-specific flash initialization
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*
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* Copyright (C) 2008 Martinsson Elektronik AB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <mach/smc.h>
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/* Will be translated to units of 14.3 ns, rounded up */
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static struct smc_timing flash_timing __initdata = {
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.ncs_read_setup = 1 * 14,
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.nrd_setup = 5 * 14,
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.ncs_write_setup = 1 * 14,
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.nwe_setup = 2 * 14,
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.ncs_read_pulse = 12 * 14,
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.nrd_pulse = 7 * 14,
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.ncs_write_pulse = 8 * 14,
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.nwe_pulse = 4 * 14,
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.read_cycle = 14 * 14,
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.write_cycle = 10 * 14,
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};
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static struct smc_config flash_config __initdata = {
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.bus_width = 2,
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.nrd_controlled = 1,
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.nwe_controlled = 1,
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.byte_write = 1,
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.tdf_cycles = 3,
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};
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static struct mtd_partition flash_0_parts[] = {
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{
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.name = "boot",
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.offset = 0x00000000,
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.size = 0x00060000,
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.mask_flags = 0,
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},
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{
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.name = "kernel",
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.offset = 0x00060000,
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.size = 0x00200000,
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.mask_flags = 0,
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},
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{
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.name = "root",
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.offset = 0x00260000,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0,
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},
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};
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static struct mtd_partition flash_1_parts[] = {
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{
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.name = "2ndflash",
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.offset = 0x00000000,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0,
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},
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};
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static struct physmap_flash_data flash_data[] = {
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{
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.width = 2,
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.nr_parts = ARRAY_SIZE(flash_0_parts),
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.parts = flash_0_parts,
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},
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{
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.width = 2,
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.nr_parts = ARRAY_SIZE(flash_1_parts),
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.parts = flash_1_parts,
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}
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};
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static struct resource flash_resource[] = {
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{
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.start = 0x00000000,
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.end = 0x03ffffff,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = 0x04000000,
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.end = 0x07ffffff,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device flash_device[] = {
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{
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.name = "physmap-flash",
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.id = 0,
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.resource = &flash_resource[0],
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.num_resources = 1,
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.dev = {
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.platform_data = &flash_data[0],
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},
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},
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{
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.name = "physmap-flash",
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.id = 1,
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.resource = &flash_resource[1],
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.num_resources = 1,
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.dev = {
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.platform_data = &flash_data[1],
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},
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},
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};
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static int __init merisc_flash_init(void)
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{
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int ret;
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smc_set_timing(&flash_config, &flash_timing);
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ret = smc_set_configuration(0, &flash_config);
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if (ret < 0) {
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printk(KERN_ERR "Merisc: failed to set NOR flash timing #0\n");
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return ret;
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}
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ret = smc_set_configuration(4, &flash_config);
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if (ret < 0) {
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printk(KERN_ERR "Merisc: failed to set NOR flash timing #1\n");
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return ret;
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}
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platform_device_register(&flash_device[0]);
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platform_device_register(&flash_device[1]);
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return 0;
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}
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device_initcall(merisc_flash_init);
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18
arch/avr32/boards/merisc/merisc.h
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18
arch/avr32/boards/merisc/merisc.h
Normal file
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@ -0,0 +1,18 @@
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/*
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* Merisc exports
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*
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* Copyright (C) 2008 Martinsson Elektronik AB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ARCH_AVR32_BOARDS_MERISC_MERISC_H
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#define __ARCH_AVR32_BOARDS_MERISC_MERISC_H
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const char *merisc_revision(void);
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const char *merisc_model(void);
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extern struct class merisc_class;
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#endif /* __ARCH_AVR32_BOARDS_MERISC_MERISC_H */
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65
arch/avr32/boards/merisc/merisc_sysfs.c
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65
arch/avr32/boards/merisc/merisc_sysfs.c
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@ -0,0 +1,65 @@
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/*
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* Merisc sysfs exports
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*
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* Copyright (C) 2008 Martinsson Elektronik AB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/spinlock.h>
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#include <linux/device.h>
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#include <linux/sysdev.h>
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#include <linux/timer.h>
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#include <linux/err.h>
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#include <linux/ctype.h>
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#include "merisc.h"
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static ssize_t merisc_model_show(struct class *class, char *buf)
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{
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ssize_t ret = 0;
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sprintf(buf, "%s\n", merisc_model());
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ret = strlen(buf) + 1;
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return ret;
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}
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static ssize_t merisc_revision_show(struct class *class, char *buf)
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{
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ssize_t ret = 0;
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sprintf(buf, "%s\n", merisc_revision());
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ret = strlen(buf) + 1;
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return ret;
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}
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static struct class_attribute merisc_class_attrs[] = {
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__ATTR(model, S_IRUGO, merisc_model_show, NULL),
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__ATTR(revision, S_IRUGO, merisc_revision_show, NULL),
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__ATTR_NULL,
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};
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struct class merisc_class = {
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.name = "merisc",
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.owner = THIS_MODULE,
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.class_attrs = merisc_class_attrs,
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};
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static int __init merisc_sysfs_init(void)
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{
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int status;
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status = class_register(&merisc_class);
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if (status < 0)
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return status;
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return 0;
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}
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postcore_initcall(merisc_sysfs_init);
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289
arch/avr32/boards/merisc/setup.c
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289
arch/avr32/boards/merisc/setup.c
Normal file
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@ -0,0 +1,289 @@
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/*
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* Board-specific setup code for the Merisc
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*
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* Copyright (C) 2008 Martinsson Elektronik AB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/clk.h>
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#include <linux/etherdevice.h>
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#include <linux/i2c.h>
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#include <linux/i2c-gpio.h>
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/linkage.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <linux/leds.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/irq.h>
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#include <linux/fb.h>
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#include <linux/atmel-mci.h>
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#include <asm/io.h>
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#include <asm/setup.h>
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#include <asm/gpio.h>
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#include <mach/at32ap700x.h>
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#include <mach/board.h>
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#include <mach/init.h>
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#include <mach/portmux.h>
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#include "merisc.h"
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/* Holds the autodetected board model and revision */
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static int merisc_board_id;
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/* Initialized by bootloader-specific startup code. */
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struct tag *bootloader_tags __initdata;
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/* Oscillator frequencies. These are board specific */
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unsigned long at32_board_osc_rates[3] = {
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[0] = 32768, /* 32.768 kHz on RTC osc */
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[1] = 20000000, /* 20 MHz on osc0 */
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[2] = 12000000, /* 12 MHz on osc1 */
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};
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struct eth_addr {
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u8 addr[6];
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};
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static struct eth_addr __initdata hw_addr[2];
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static struct eth_platform_data __initdata eth_data[2];
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static int ads7846_get_pendown_state_PB26(void)
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{
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return !gpio_get_value(GPIO_PIN_PB(26));
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}
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static int ads7846_get_pendown_state_PB28(void)
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{
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return !gpio_get_value(GPIO_PIN_PB(28));
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}
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static struct ads7846_platform_data __initdata ads7846_data = {
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.model = 7846,
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.vref_delay_usecs = 100,
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.vref_mv = 0,
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.keep_vref_on = 0,
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.settle_delay_usecs = 150,
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.penirq_recheck_delay_usecs = 1,
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.x_plate_ohms = 800,
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.debounce_rep = 4,
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.debounce_max = 10,
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.debounce_tol = 50,
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.get_pendown_state = ads7846_get_pendown_state_PB26,
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.filter_init = NULL,
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.filter = NULL,
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.filter_cleanup = NULL,
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};
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static struct spi_board_info __initdata spi0_board_info[] = {
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{
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.modalias = "ads7846",
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.max_speed_hz = 3250000,
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.chip_select = 0,
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.bus_num = 0,
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.platform_data = &ads7846_data,
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.mode = SPI_MODE_0,
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},
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};
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static struct mci_platform_data __initdata mci0_data = {
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.slot[0] = {
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.bus_width = 4,
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.detect_pin = GPIO_PIN_PE(19),
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.wp_pin = GPIO_PIN_PE(20),
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},
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};
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static int __init parse_tag_ethernet(struct tag *tag)
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{
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int i;
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i = tag->u.ethernet.mac_index;
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if (i < ARRAY_SIZE(hw_addr)) {
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memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
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sizeof(hw_addr[i].addr));
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}
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return 0;
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}
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__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
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static void __init set_hw_addr(struct platform_device *pdev)
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{
|
||||
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, ð_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);
|
||||
1237
arch/avr32/configs/merisc_defconfig
Normal file
1237
arch/avr32/configs/merisc_defconfig
Normal file
File diff suppressed because it is too large
Load diff
Loading…
Reference in a new issue