diff options
Diffstat (limited to 'arch/arm/mach-imx/mach-kzm_arm11_01.c')
| -rw-r--r-- | arch/arm/mach-imx/mach-kzm_arm11_01.c | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-kzm_arm11_01.c b/arch/arm/mach-imx/mach-kzm_arm11_01.c new file mode 100644 index 000000000000..1ecae20cf4e3 --- /dev/null +++ b/arch/arm/mach-imx/mach-kzm_arm11_01.c @@ -0,0 +1,278 @@ +/* + * KZM-ARM11-01 support + * Copyright (C) 2009 Yoichi Yuasa <yuasa@linux-mips.org> + * + * based on code for MX31ADS, + * Copyright (C) 2000 Deep Blue Solutions Ltd + * Copyright (C) 2002 Shane Nay (shane@minirl.com) + * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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. + */ + +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> +#include <linux/smsc911x.h> +#include <linux/types.h> + +#include <asm/irq.h> +#include <asm/mach-types.h> +#include <asm/memory.h> +#include <asm/setup.h> +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> +#include <asm/mach/map.h> +#include <asm/mach/time.h> + +#include <mach/clock.h> +#include <mach/common.h> +#include <mach/iomux-mx3.h> + +#include "devices-imx31.h" + +#define KZM_ARM11_IO_ADDRESS(x) (IOMEM( \ + IMX_IO_P2V_MODULE(x, MX31_CS4) ?: \ + IMX_IO_P2V_MODULE(x, MX31_CS5)) ?: \ + MX31_IO_ADDRESS(x)) + +/* + * KZM-ARM11-01 Board Control Registers on FPGA + */ +#define KZM_ARM11_CTL1 (MX31_CS4_BASE_ADDR + 0x1000) +#define KZM_ARM11_CTL2 (MX31_CS4_BASE_ADDR + 0x1001) +#define KZM_ARM11_RSW1 (MX31_CS4_BASE_ADDR + 0x1002) +#define KZM_ARM11_BACK_LIGHT (MX31_CS4_BASE_ADDR + 0x1004) +#define KZM_ARM11_FPGA_REV (MX31_CS4_BASE_ADDR + 0x1008) +#define KZM_ARM11_7SEG_LED (MX31_CS4_BASE_ADDR + 0x1010) +#define KZM_ARM11_LEDS (MX31_CS4_BASE_ADDR + 0x1020) +#define KZM_ARM11_DIPSW2 (MX31_CS4_BASE_ADDR + 0x1003) + +/* + * External UART for touch panel on FPGA + */ +#define KZM_ARM11_16550 (MX31_CS4_BASE_ADDR + 0x1050) + +#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) +/* + * KZM-ARM11-01 has an external UART on FPGA + */ +static struct plat_serial8250_port serial_platform_data[] = { + { + .membase = KZM_ARM11_IO_ADDRESS(KZM_ARM11_16550), + .mapbase = KZM_ARM11_16550, + .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), + .irqflags = IRQ_TYPE_EDGE_RISING, + .uartclk = 14745600, + .regshift = 0, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | + UPF_BUGGY_UART, + }, + {}, +}; + +static struct resource serial8250_resources[] = { + { + .start = KZM_ARM11_16550, + .end = KZM_ARM11_16550 + 0x10, + .flags = IORESOURCE_MEM, + }, + { + .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), + .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_1), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device serial_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = serial_platform_data, + }, + .num_resources = ARRAY_SIZE(serial8250_resources), + .resource = serial8250_resources, +}; + +static int __init kzm_init_ext_uart(void) +{ + u8 tmp; + + /* + * GPIO 1-1: external UART interrupt line + */ + mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO)); + gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1), "ext-uart-int"); + gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)); + + /* + * Unmask UART interrupt + */ + tmp = __raw_readb(KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); + tmp |= 0x2; + __raw_writeb(tmp, KZM_ARM11_IO_ADDRESS(KZM_ARM11_CTL1)); + + return platform_device_register(&serial_device); +} +#else +static inline int kzm_init_ext_uart(void) +{ + return 0; +} +#endif + +/* + * SMSC LAN9118 + */ +#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE) +static struct smsc911x_platform_config kzm_smsc9118_config = { + .phy_interface = PHY_INTERFACE_MODE_MII, + .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH, + .irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL, + .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS, +}; + +static struct resource kzm_smsc9118_resources[] = { + { + .start = MX31_CS5_BASE_ADDR, + .end = MX31_CS5_BASE_ADDR + SZ_128K - 1, + .flags = IORESOURCE_MEM, + }, + { + .start = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2), + .end = IOMUX_TO_IRQ(MX31_PIN_GPIO1_2), + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, + }, +}; + +static struct platform_device kzm_smsc9118_device = { + .name = "smsc911x", + .id = -1, + .num_resources = ARRAY_SIZE(kzm_smsc9118_resources), + .resource = kzm_smsc9118_resources, + .dev = { + .platform_data = &kzm_smsc9118_config, + }, +}; + +static int __init kzm_init_smsc9118(void) +{ + /* + * GPIO 1-2: SMSC9118 interrupt line + */ + mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO)); + gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2), "smsc9118-int"); + gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_2)); + + return platform_device_register(&kzm_smsc9118_device); +} +#else +static inline int kzm_init_smsc9118(void) +{ + return 0; +} +#endif + +#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE) +static const struct imxuart_platform_data uart_pdata __initconst = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static void __init kzm_init_imx_uart(void) +{ + imx31_add_imx_uart0(&uart_pdata); + imx31_add_imx_uart1(&uart_pdata); +} +#else +static inline void kzm_init_imx_uart(void) +{ +} +#endif + +static int kzm_pins[] __initdata = { + MX31_PIN_CTS1__CTS1, + MX31_PIN_RTS1__RTS1, + MX31_PIN_TXD1__TXD1, + MX31_PIN_RXD1__RXD1, + MX31_PIN_DCD_DCE1__DCD_DCE1, + MX31_PIN_RI_DCE1__RI_DCE1, + MX31_PIN_DSR_DCE1__DSR_DCE1, + MX31_PIN_DTR_DCE1__DTR_DCE1, + MX31_PIN_CTS2__CTS2, + MX31_PIN_RTS2__RTS2, + MX31_PIN_TXD2__TXD2, + MX31_PIN_RXD2__RXD2, + MX31_PIN_DCD_DTE1__DCD_DTE2, + MX31_PIN_RI_DTE1__RI_DTE2, + MX31_PIN_DSR_DTE1__DSR_DTE2, + MX31_PIN_DTR_DTE1__DTR_DTE2, +}; + +/* + * Board specific initialization. + */ +static void __init kzm_board_init(void) +{ + mxc_iomux_setup_multiple_pins(kzm_pins, + ARRAY_SIZE(kzm_pins), "kzm"); + kzm_init_ext_uart(); + kzm_init_smsc9118(); + kzm_init_imx_uart(); + + pr_info("Clock input source is 26MHz\n"); +} + +/* + * This structure defines static mappings for the kzm-arm11-01 board. + */ +static struct map_desc kzm_io_desc[] __initdata = { + { + .virtual = MX31_CS4_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR), + .length = MX31_CS4_SIZE, + .type = MT_DEVICE + }, + { + .virtual = MX31_CS5_BASE_ADDR_VIRT, + .pfn = __phys_to_pfn(MX31_CS5_BASE_ADDR), + .length = MX31_CS5_SIZE, + .type = MT_DEVICE + }, +}; + +/* + * Set up static virtual mappings. + */ +static void __init kzm_map_io(void) +{ + mx31_map_io(); + iotable_init(kzm_io_desc, ARRAY_SIZE(kzm_io_desc)); +} + +static void __init kzm_timer_init(void) +{ + mx31_clocks_init(26000000); +} + +static struct sys_timer kzm_timer = { + .init = kzm_timer_init, +}; + +MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01") + .boot_params = MX3x_PHYS_OFFSET + 0x100, + .map_io = kzm_map_io, + .init_early = imx31_init_early, + .init_irq = mx31_init_irq, + .timer = &kzm_timer, + .init_machine = kzm_board_init, +MACHINE_END |