ARM: 5629/1: Add support for Eukrea's CPU9260 & CPU9G20

CPU9260 and CPU9G20 share the same PCB populated with either
Atmel's AT91SAM9260B or AT91SAM9G20B with up to 64MB Strataflash,
up to 128MB SDRAM, up to 2GB NAND and an ethernet PHY in RMII mode.

Signed-off-by: Eric Benard <eric@eukrea.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 385 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/board-cpu9krea.c b/arch/arm/mach-at91/board-cpu9krea.c
new file mode 100644
index 000000000000..4bc2e9f6ebb5
--- /dev/null
+++ b/arch/arm/mach-at91/board-cpu9krea.c
@@ -0,0 +1,385 @@
+/*
+ * linux/arch/arm/mach-at91/board-cpu9krea.c
+ *
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2006 Atmel
+ *  Copyright (C) 2009 Eric Benard - eric@eukrea.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 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/mtd/physmap.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/hardware.h>
+#include <mach/board.h>
+#include <mach/gpio.h>
+#include <mach/at91sam9_smc.h>
+#include <mach/at91sam9260_matrix.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+static void __init cpu9krea_map_io(void)
+{
+        /* Initialize processor: 18.432 MHz crystal */
+        at91sam9260_initialize(18432000);
+
+        /* DGBU on ttyS0. (Rx & Tx only) */
+        at91_register_uart(0, 0, 0);
+
+        /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+        at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
+                ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
+                ATMEL_UART_DCD | ATMEL_UART_RI);
+
+        /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
+        at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
+                ATMEL_UART_RTS);
+
+        /* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
+        at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
+                ATMEL_UART_RTS);
+
+        /* USART3 on ttyS4. (Rx, Tx) */
+        at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
+
+        /* USART4 on ttyS5. (Rx, Tx) */
+        at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
+
+        /* USART5 on ttyS6. (Rx, Tx) */
+        at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
+
+        /* set serial console to ttyS0 (ie, DBGU) */
+        at91_set_serial_console(0);
+}
+
+static void __init cpu9krea_init_irq(void)
+{
+        at91sam9260_init_interrupts(NULL);
+}
+
+/*
+ * USB Host port
+ */
+static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
+        .ports          = 2,
+};
+
+/*
+ * USB Device port
+ */
+static struct at91_udc_data __initdata cpu9krea_udc_data = {
+        .vbus_pin       = AT91_PIN_PC8,
+        .pullup_pin     = 0,            /* pull-up driven by UDC */
+};
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata cpu9krea_macb_data = {
+        .is_rmii        = 1,
+};
+
+/*
+ * NAND flash
+ */
+static struct atmel_nand_data __initdata cpu9krea_nand_data = {
+        .ale            = 21,
+        .cle            = 22,
+        .rdy_pin        = AT91_PIN_PC13,
+        .enable_pin     = AT91_PIN_PC14,
+        .bus_width_16   = 0,
+};
+
+#ifdef CONFIG_MACH_CPU9260
+static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
+        .ncs_read_setup         = 0,
+        .nrd_setup              = 1,
+        .ncs_write_setup        = 0,
+        .nwe_setup              = 1,
+
+        .ncs_read_pulse         = 3,
+        .nrd_pulse              = 3,
+        .ncs_write_pulse        = 3,
+        .nwe_pulse              = 3,
+
+        .read_cycle             = 5,
+        .write_cycle            = 5,
+
+        .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
+                | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
+        .tdf_cycles             = 2,
+};
+#else
+static struct sam9_smc_config __initdata cpu9krea_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 | AT91_SMC_DBW_8,
+        .tdf_cycles             = 3,
+};
+#endif
+
+static void __init cpu9krea_add_device_nand(void)
+{
+        sam9_smc_configure(3, &cpu9krea_nand_smc_config);
+        at91_add_device_nand(&cpu9krea_nand_data);
+}
+
+/*
+ * NOR flash
+ */
+static struct physmap_flash_data cpuat9260_nor_data = {
+        .width          = 2,
+};
+
+#define NOR_BASE        AT91_CHIPSELECT_0
+#define NOR_SIZE        SZ_64M
+
+static struct resource nor_flash_resources[] = {
+        {
+                .start  = NOR_BASE,
+                .end    = NOR_BASE + NOR_SIZE - 1,
+                .flags  = IORESOURCE_MEM,
+        }
+};
+
+static struct platform_device cpu9krea_nor_flash = {
+        .name           = "physmap-flash",
+        .id             = 0,
+        .dev            = {
+                .platform_data  = &cpuat9260_nor_data,
+        },
+        .resource       = nor_flash_resources,
+        .num_resources  = ARRAY_SIZE(nor_flash_resources),
+};
+
+#ifdef CONFIG_MACH_CPU9260
+static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
+        .ncs_read_setup         = 0,
+        .nrd_setup              = 1,
+        .ncs_write_setup        = 0,
+        .nwe_setup              = 1,
+
+        .ncs_read_pulse         = 10,
+        .nrd_pulse              = 10,
+        .ncs_write_pulse        = 6,
+        .nwe_pulse              = 6,
+
+        .read_cycle             = 12,
+        .write_cycle            = 8,
+
+        .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
+                        | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
+                        | AT91_SMC_DBW_16,
+        .tdf_cycles             = 2,
+};
+#else
+static struct sam9_smc_config __initdata cpu9krea_nor_smc_config = {
+        .ncs_read_setup         = 0,
+        .nrd_setup              = 1,
+        .ncs_write_setup        = 0,
+        .nwe_setup              = 1,
+
+        .ncs_read_pulse         = 13,
+        .nrd_pulse              = 13,
+        .ncs_write_pulse        = 8,
+        .nwe_pulse              = 8,
+
+        .read_cycle             = 15,
+        .write_cycle            = 10,
+
+        .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
+                        | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
+                        | AT91_SMC_DBW_16,
+        .tdf_cycles             = 2,
+};
+#endif
+
+static __init void cpu9krea_add_device_nor(void)
+{
+        unsigned long csa;
+
+        csa = at91_sys_read(AT91_MATRIX_EBICSA);
+        at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
+
+        /* configure chip-select 0 (NOR) */
+        sam9_smc_configure(0, &cpu9krea_nor_smc_config);
+
+        platform_device_register(&cpu9krea_nor_flash);
+}
+
+/*
+ * LEDs
+ */
+static struct gpio_led cpu9krea_leds[] = {
+        {       /* LED1 */
+                .name                   = "LED1",
+                .gpio                   = AT91_PIN_PC11,
+                .active_low             = 1,
+                .default_trigger        = "timer",
+        },
+        {       /* LED2 */
+                .name                   = "LED2",
+                .gpio                   = AT91_PIN_PC12,
+                .active_low             = 1,
+                .default_trigger        = "heartbeat",
+        },
+        {       /* LED3 */
+                .name                   = "LED3",
+                .gpio                   = AT91_PIN_PC7,
+                .active_low             = 1,
+                .default_trigger        = "none",
+        },
+        {       /* LED4 */
+                .name                   = "LED4",
+                .gpio                   = AT91_PIN_PC9,
+                .active_low             = 1,
+                .default_trigger        = "none",
+        }
+};
+
+static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
+        {
+                I2C_BOARD_INFO("rtc-ds1307", 0x68),
+                .type   = "ds1339",
+        },
+};
+
+/*
+ * GPIO Buttons
+ */
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button cpu9krea_buttons[] = {
+        {
+                .gpio           = AT91_PIN_PC3,
+                .code           = BTN_0,
+                .desc           = "BP1",
+                .active_low     = 1,
+                .wakeup         = 1,
+        },
+        {
+                .gpio           = AT91_PIN_PB20,
+                .code           = BTN_1,
+                .desc           = "BP2",
+                .active_low     = 1,
+                .wakeup         = 1,
+        }
+};
+
+static struct gpio_keys_platform_data cpu9krea_button_data = {
+        .buttons        = cpu9krea_buttons,
+        .nbuttons       = ARRAY_SIZE(cpu9krea_buttons),
+};
+
+static struct platform_device cpu9krea_button_device = {
+        .name           = "gpio-keys",
+        .id             = -1,
+        .num_resources  = 0,
+        .dev            = {
+                .platform_data  = &cpu9krea_button_data,
+        }
+};
+
+static void __init cpu9krea_add_device_buttons(void)
+{
+        at91_set_gpio_input(AT91_PIN_PC3, 1);   /* BP1 */
+        at91_set_deglitch(AT91_PIN_PC3, 1);
+        at91_set_gpio_input(AT91_PIN_PB20, 1);  /* BP2 */
+        at91_set_deglitch(AT91_PIN_PB20, 1);
+
+        platform_device_register(&cpu9krea_button_device);
+}
+#else
+static void __init cpu9krea_add_device_buttons(void)
+{
+}
+#endif
+
+/*
+ * MCI (SD/MMC)
+ */
+static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
+        .slot_b         = 0,
+        .wire4          = 1,
+        .det_pin        = AT91_PIN_PA29,
+};
+
+static void __init cpu9krea_board_init(void)
+{
+        /* NOR */
+        cpu9krea_add_device_nor();
+        /* Serial */
+        at91_add_device_serial();
+        /* USB Host */
+        at91_add_device_usbh(&cpu9krea_usbh_data);
+        /* USB Device */
+        at91_add_device_udc(&cpu9krea_udc_data);
+        /* NAND */
+        cpu9krea_add_device_nand();
+        /* Ethernet */
+        at91_add_device_eth(&cpu9krea_macb_data);
+        /* MMC */
+        at91_add_device_mmc(0, &cpu9krea_mmc_data);
+        /* I2C */
+        at91_add_device_i2c(cpu9krea_i2c_devices,
+                ARRAY_SIZE(cpu9krea_i2c_devices));
+        /* LEDs */
+        at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
+        /* Push Buttons */
+        cpu9krea_add_device_buttons();
+}
+
+#ifdef CONFIG_MACH_CPU9260
+MACHINE_START(CPUAT9260, "Eukrea CPU9260")
+#else
+MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
+#endif
+        /* Maintainer: Eric Benard - EUKREA Electromatique */
+        .phys_io        = AT91_BASE_SYS,
+        .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
+        .boot_params    = AT91_SDRAM_BASE + 0x100,
+        .timer          = &at91sam926x_timer,
+        .map_io         = cpu9krea_map_io,
+        .init_irq       = cpu9krea_init_irq,
+        .init_machine   = cpu9krea_board_init,
+MACHINE_END