/* * KZM-ARM11-01 support * Copyright (C) 2009 Yoichi Yuasa * * 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. * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "devices.h" #define KZM_ARM11_IO_ADDRESS(x) ( \ IMX_IO_ADDRESS(x, MX31_CS4) ?: \ IMX_IO_ADDRESS(x, MX31_CS5) ?: \ MX31_IO_ADDRESS(x)) #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 struct imxuart_platform_data uart_pdata = { .flags = IMXUART_HAVE_RTSCTS, }; static void __init kzm_init_imx_uart(void) { mxc_register_device(&mxc_uart_device0, &uart_pdata); mxc_register_device(&mxc_uart_device1, &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, }; /* * The following uses standard kernel macros define in arch.h in order to * initialize __mach_desc_KZM_ARM11_01 data structure. */ MACHINE_START(KZM_ARM11_01, "Kyoto Microcomputer Co., Ltd. KZM-ARM11-01") .phys_io = MX31_AIPS1_BASE_ADDR, .io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc, .boot_params = MX3x_PHYS_OFFSET + 0x100, .map_io = kzm_map_io, .init_irq = mx31_init_irq, .init_machine = kzm_board_init, .timer = &kzm_timer, MACHINE_END