From mboxrd@z Thu Jan  1 00:00:00 1970
From: npavel@mini-box.com (Nicu Pavel)
Date: Mon, 31 Oct 2011 16:56:48 +0200
Subject: [PATCH 1/3] Add support for mini-box.com picoSAM9G45 board
Message-ID: <1320073010-19549-1-git-send-email-npavel@mini-box.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

This patch adds support for picoSAM9G45 board from mini-box.com. This board is
based on Atmel G45 SOC. More details can be found at http://arm.mini-box.com


Signed-off-by: Nicu Pavel <npavel@mini-box.com>
---
 arch/arm/mach-at91/board-picosam9g45.c |  436 ++++++++++++++++++++++++++++++++
 1 files changed, 436 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-at91/board-picosam9g45.c

diff --git a/arch/arm/mach-at91/board-picosam9g45.c b/arch/arm/mach-at91/board-picosam9g45.c
new file mode 100644
index 0000000..84d9dff
--- /dev/null
+++ b/arch/arm/mach-at91/board-picosam9g45.c
@@ -0,0 +1,436 @@
+/*
+ *  Board-specific setup code for the picoSAM9G45 board
+ *
+ *  http://www.mini-box.com/pico-SAM9G45-X
+ *
+ *  Copyright (C) 2011 Nicu Pavel <npavel@mini-box.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.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/fb.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/leds.h>
+#include <linux/clk.h>
+#include <linux/atmel-mci.h>
+
+#include <mach/hardware.h>
+#include <video/atmel_lcdc.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/board.h>
+#include <mach/gpio.h>
+#include <mach/at91sam9_smc.h>
+#include <mach/at91_shdwc.h>
+#include <mach/system_rev.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+
+static void __init picosam9g45_init_early(void)
+{
+	/* Initialize processor: 12.000 MHz crystal */
+	at91_initialize(12000000);
+
+	/* DGBU on ttyS0. (Rx & Tx only) */
+	at91_register_uart(0, 0, 0);
+
+	/* USART1 on ttyS1. (Rx, Tx, RTS, CTS) */
+	at91_register_uart(AT91SAM9G45_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
+	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
+	at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
+
+	/* set serial console to ttyS0 (ie, DBGU) */
+	at91_set_serial_console(0);
+}
+
+/*
+ * USB HS Host port (common to OHCI & EHCI)
+ */
+static struct at91_usbh_data __initdata picosam9g45_usbh_hs_data = {
+	.ports		= 2,
+	.vbus_pin	= {AT91_PIN_PD1, AT91_PIN_PD3},
+};
+
+
+/*
+ * USB HS Device port
+ */
+static struct usba_platform_data __initdata picosam9g45_usba_udc_data = {
+	.vbus_pin	= AT91_PIN_PB19,
+};
+
+
+/*
+ * SPI devices.
+ */
+static struct spi_board_info picosam9g45_spi_devices[] = {
+	[0] = {/* SPI0 CS0 on right side connector J7*/
+		.modalias= "spidev",
+		.max_speed_hz= 15 * 1000 * 1000,
+		.bus_num= 0,
+		.chip_select= 0,
+	},
+	[1] = {/* SPI1 CS0 on left side connector J9*/
+		.modalias= "spidev",
+		.max_speed_hz= 15 * 1000 * 1000,
+		.bus_num= 1,
+		.chip_select= 0,
+	},
+};
+
+
+/*
+ * MCI (SD/MMC)
+ */
+static struct mci_platform_data __initdata mci0_data = {
+	.slot[0] = {
+		.bus_width	= 4,
+		.detect_pin	= AT91_PIN_PD10,
+	},
+};
+
+static struct mci_platform_data __initdata mci1_data = {
+	.slot[0] = {
+		.bus_width	= 4,
+		.detect_pin	= AT91_PIN_PD11,
+		.wp_pin		= AT91_PIN_PD29,
+	},
+};
+
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata picosam9g45_macb_data = {
+	.phy_irq_pin	= AT91_PIN_PD5,
+	.is_rmii	= 1,
+};
+
+
+/*
+ * NAND flash
+ */
+static struct mtd_partition __initdata picosam9g45_nand_partition[] = {
+	{
+		.name   = "Bootstrap",
+		.offset = 0,
+		.size   = SZ_4M
+	},
+	{
+		.name= "RootFS",
+		.offset= MTDPART_OFS_NXTBLK,
+		.size= 60 * SZ_1M,
+	},
+	{
+		.name= "Space",
+		.offset= MTDPART_OFS_NXTBLK,
+		.size= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
+{
+	*num_partitions = ARRAY_SIZE(picosam9g45_nand_partition);
+	return picosam9g45_nand_partition;
+}
+
+/* det_pin is not connected */
+static struct atmel_nand_data __initdata picosam9g45_nand_data = {
+	.ale		= 21,
+	.cle		= 22,
+	.rdy_pin	= AT91_PIN_PC8,
+	.enable_pin	= AT91_PIN_PC14,
+	.partition_info	= nand_partitions,
+};
+
+static struct sam9_smc_config __initdata picosam9g45_nand_smc_config = {
+	.ncs_read_setup		= 0,
+	.nrd_setup		= 2,
+	.ncs_write_setup	= 0,
+	.nwe_setup		= 2,
+
+	.ncs_read_pulse		= 4,
+	.nrd_pulse		= 4,
+	.ncs_write_pulse	= 4,
+	.nwe_pulse		= 4,
+
+	.read_cycle		= 7,
+	.write_cycle		= 7,
+
+	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
+	.tdf_cycles		= 3,
+};
+
+static void __init picosam9g45_add_device_nand(void)
+{
+	picosam9g45_nand_data.bus_width_16 = board_have_nand_16bit();
+	/* setup bus-width (8 or 16) */
+	if (picosam9g45_nand_data.bus_width_16)
+		picosam9g45_nand_smc_config.mode |= AT91_SMC_DBW_16;
+	else
+		picosam9g45_nand_smc_config.mode |= AT91_SMC_DBW_8;
+
+	/* configure chip-select 3 (NAND) */
+	sam9_smc_configure(3, &picosam9g45_nand_smc_config);
+
+	at91_add_device_nand(&picosam9g45_nand_data);
+}
+
+
+/*
+ * LCD Controller
+ */
+#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
+static struct fb_videomode at91_tft_vga_modes[] = {
+	{
+		.name           = "HannStar",
+		.refresh	= 60,
+		.xres		= 480,		.yres		= 272,
+		.pixclock	= KHZ2PICOS(9000),
+
+		.left_margin	= 2,		.right_margin	= 2,
+		.upper_margin	= 2,		.lower_margin	= 2,
+		.hsync_len	= 41,		.vsync_len	= 10,
+
+		.sync		= 0,
+		.vmode		= FB_VMODE_NONINTERLACED,
+	},
+};
+
+static struct fb_monspecs at91fb_default_monspecs = {
+	.manufacturer	= "HNS",
+	.monitor        = "HSD043I9W1",
+
+	.modedb		= at91_tft_vga_modes,
+	.modedb_len	= ARRAY_SIZE(at91_tft_vga_modes),
+	.hfmin		= 15000,
+	.hfmax		= 17640,
+	.vfmin		= 57,
+	.vfmax		= 67,
+};
+
+#define AT91SAM9G45_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \
+					| ATMEL_LCDC_DISTYPE_TFT \
+					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
+
+/* Driver datas */
+static struct atmel_lcdfb_info __initdata picosam9g45_lcdc_data = {
+	.lcdcon_is_backlight		= true,
+	.default_bpp			= 16,
+	.default_dmacon			= ATMEL_LCDC_DMAEN,
+	.default_lcdcon2		= AT91SAM9G45_DEFAULT_LCDCON2,
+	.default_monspecs		= &at91fb_default_monspecs,
+	.guard_time			= 9,
+	.lcd_wiring_mode		= ATMEL_LCDC_WIRING_RGB,
+};
+
+#else
+static struct atmel_lcdfb_info __initdata picosam9g45_lcdc_data;
+#endif
+
+
+/*
+ * Touchscreen
+ */
+static struct at91_tsadcc_data picosam9g45_tsadcc_data = {
+	.adc_clock		= 300000,
+	.pendet_debounce	= 0x0d,
+	.ts_sample_hold_time	= 0x0a,
+};
+
+
+/*
+ * GPIO Buttons
+ */
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button picosam9g45_buttons[] = {
+	{	/* J9 pin 5 gnd + pin 11 */
+		.code		= KEY_BACK,
+		.gpio		= AT91_PIN_PB6,
+		.active_low	= 1,
+		.desc		= "Back",
+		.wakeup		= 1,
+	},
+	{	/* J9 pin 5 gnd + pin 13*/
+		.code		= KEY_MENU,
+		.gpio		= AT91_PIN_PB7,
+		.active_low	= 1,
+		.desc		= "Menu",
+		.wakeup		= 1,
+	},
+	{	/* J9 pin 5 gnd + pin 12 */
+		.code		= KEY_HOME,
+		.gpio		= AT91_PIN_PB16,
+		.active_low	= 1,
+		.desc		= "Home",
+	},
+
+};
+
+static struct gpio_keys_platform_data picosam9g45_button_data = {
+	.buttons	= picosam9g45_buttons,
+	.nbuttons	= ARRAY_SIZE(picosam9g45_buttons),
+};
+
+static struct platform_device picosam9g45_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &picosam9g45_button_data,
+	}
+};
+
+static void __init picosam9g45_add_device_buttons(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(picosam9g45_buttons); i++) {
+		at91_set_GPIO_periph(picosam9g45_buttons[i].gpio, 1);
+		at91_set_deglitch(picosam9g45_buttons[i].gpio, 1);
+	}
+
+	platform_device_register(&picosam9g45_button_device);
+}
+#else
+static void __init picosam9g45_add_device_buttons(void) {}
+#endif
+
+
+/*
+ * LEDs ... these could all be PWM-driven, for variable brightness
+ */
+static struct gpio_led picosam9g45_leds[] = {
+	{	/* "pwr" led */
+		.name			= "pwr",
+		.gpio			= AT91_PIN_PD30,
+		.default_trigger	= "heartbeat",
+	},
+	{	/* "u1" led */
+		.name			= "u1",
+		.gpio			= AT91_PIN_PD0,
+		.active_low		= 1,
+		.default_trigger	= "mmc0",
+	},
+#if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
+	{	/* "u2" led */
+		.name			= "u2",
+		.gpio			= AT91_PIN_PD31,
+		.active_low		= 1,
+		.default_trigger	= "none",
+	},
+#endif
+};
+
+
+/*
+ * PWM Leds
+ */
+static struct gpio_led picosam9g45_pwm_led[] = {
+#if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
+	{	/* "right" led, green, userled1, pwm1 */
+		.name			= "d7",
+		.gpio			= 1,	/* is PWM channel number */
+		.active_low		= 1,
+		.default_trigger	= "none",
+	},
+	{	/* picopc buzzer */
+		.name= "buzzer",
+		.gpio= 2, /* is PWM channel number */
+		.active_low= 1,
+		.default_trigger= "none",
+	},
+#endif
+};
+
+
+/*
+ * PWM buzzer
+ */
+static void picosam9g45_setup_device_buzzer(void)
+{
+    at91_set_A_periph(AT91_PIN_PE31, 1);
+}
+
+/*
+ * Capacitive touchscreen
+ */
+#define PICOSAM9G45_CAPTS_IRQ	AT91_PIN_PA27
+static struct i2c_board_info __initdata picosam9g45_i2c1_devices[] = {
+	{
+		I2C_BOARD_INFO("ms-msg20xx", 0x60),
+		.irq = PICOSAM9G45_CAPTS_IRQ,
+	},
+};
+
+static void picosam9g45_setup_device_capts(void)
+{
+    at91_set_gpio_input(PICOSAM9G45_CAPTS_IRQ, 0);
+    at91_set_deglitch(PICOSAM9G45_CAPTS_IRQ, 1);
+}
+
+
+static void __init picosam9g45_board_init(void)
+{
+	/* Buzzer PWM pin */
+	picosam9g45_setup_device_buzzer();
+	/* Capacitive Touch Screen IRQ */
+	picosam9g45_setup_device_capts();
+	/* Serial */
+	at91_add_device_serial();
+	/* USB HS Host */
+	at91_add_device_usbh_ohci(&picosam9g45_usbh_hs_data);
+	at91_add_device_usbh_ehci(&picosam9g45_usbh_hs_data);
+	/* USB HS Device */
+	at91_add_device_usba(&picosam9g45_usba_udc_data);
+	/* SPI */
+	at91_add_device_spi(picosam9g45_spi_devices, ARRAY_SIZE(picosam9g45_spi_devices));
+	/* MMC */
+	at91_add_device_mci(0, &mci0_data);
+	at91_add_device_mci(1, &mci1_data);
+	/* Ethernet */
+	at91_add_device_eth(&picosam9g45_macb_data);
+	/* NAND */
+	picosam9g45_add_device_nand();
+	/* I2C */
+	at91_add_device_i2c(0, NULL, 0);
+	at91_add_device_i2c(1, picosam9g45_i2c1_devices, ARRAY_SIZE(picosam9g45_i2c1_devices));
+	/* LCD Controller */
+	at91_add_device_lcdc(&picosam9g45_lcdc_data);
+	/* Resistive Touch Screen */
+	at91_add_device_tsadcc(&picosam9g45_tsadcc_data);
+	/* Push Buttons */
+	picosam9g45_add_device_buttons();
+	/* LEDs */
+	at91_gpio_leds(picosam9g45_leds, ARRAY_SIZE(picosam9g45_leds));
+	at91_pwm_leds(picosam9g45_pwm_led, ARRAY_SIZE(picosam9g45_pwm_led));
+}
+
+MACHINE_START(MINIBOXPICOSAM9G45, "Mini Box picoSAM9 G45 Board")
+	/* Maintainer: Nicu Pavel */
+	.timer		= &at91sam926x_timer,
+	.map_io		= at91_map_io,
+	.init_early	= picosam9g45_init_early,
+	.init_irq	= at91_init_irq_default,
+	.init_machine	= picosam9g45_board_init,
+MACHINE_END
-- 
1.7.1