/* * Copyright (C) 2000 Deep Blue Solutions Ltd * Copyright (C) 2002 Shane Nay (shane@minirl.com) * Copyright 2006-2007 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "devices-imx27.h" #include "devices.h" /* * Base address of PBC controller, CS4 */ #define PBC_BASE_ADDRESS 0xf4300000 #define PBC_REG_ADDR(offset) (void __force __iomem *) \ (PBC_BASE_ADDRESS + (offset)) /* When the PBC address connection is fixed in h/w, defined as 1 */ #define PBC_ADDR_SH 0 /* Offsets for the PBC Controller register */ /* * PBC Board version register offset */ #define PBC_VERSION_REG PBC_REG_ADDR(0x00000 >> PBC_ADDR_SH) /* * PBC Board control register 1 set address. */ #define PBC_BCTRL1_SET_REG PBC_REG_ADDR(0x00008 >> PBC_ADDR_SH) /* * PBC Board control register 1 clear address. */ #define PBC_BCTRL1_CLEAR_REG PBC_REG_ADDR(0x0000C >> PBC_ADDR_SH) /* PBC Board Control Register 1 bit definitions */ #define PBC_BCTRL1_LCDON 0x0800 /* Enable the LCD */ /* to determine the correct external crystal reference */ #define CKIH_27MHZ_BIT_SET (1 << 3) static const int mx27ads_pins[] __initconst = { /* UART0 */ PE12_PF_UART1_TXD, PE13_PF_UART1_RXD, PE14_PF_UART1_CTS, PE15_PF_UART1_RTS, /* UART1 */ PE3_PF_UART2_CTS, PE4_PF_UART2_RTS, PE6_PF_UART2_TXD, PE7_PF_UART2_RXD, /* UART2 */ PE8_PF_UART3_TXD, PE9_PF_UART3_RXD, PE10_PF_UART3_CTS, PE11_PF_UART3_RTS, /* UART3 */ PB26_AF_UART4_RTS, PB28_AF_UART4_TXD, PB29_AF_UART4_CTS, PB31_AF_UART4_RXD, /* UART4 */ PB18_AF_UART5_TXD, PB19_AF_UART5_RXD, PB20_AF_UART5_CTS, PB21_AF_UART5_RTS, /* UART5 */ PB10_AF_UART6_TXD, PB12_AF_UART6_CTS, PB11_AF_UART6_RXD, PB13_AF_UART6_RTS, /* FEC */ PD0_AIN_FEC_TXD0, PD1_AIN_FEC_TXD1, PD2_AIN_FEC_TXD2, PD3_AIN_FEC_TXD3, PD4_AOUT_FEC_RX_ER, PD5_AOUT_FEC_RXD1, PD6_AOUT_FEC_RXD2, PD7_AOUT_FEC_RXD3, PD8_AF_FEC_MDIO, PD9_AIN_FEC_MDC, PD10_AOUT_FEC_CRS, PD11_AOUT_FEC_TX_CLK, PD12_AOUT_FEC_RXD0, PD13_AOUT_FEC_RX_DV, PD14_AOUT_FEC_RX_CLK, PD15_AOUT_FEC_COL, PD16_AIN_FEC_TX_ER, PF23_AIN_FEC_TX_EN, /* I2C2 */ PC5_PF_I2C2_SDA, PC6_PF_I2C2_SCL, /* FB */ PA5_PF_LSCLK, PA6_PF_LD0, PA7_PF_LD1, PA8_PF_LD2, PA9_PF_LD3, PA10_PF_LD4, PA11_PF_LD5, PA12_PF_LD6, PA13_PF_LD7, PA14_PF_LD8, PA15_PF_LD9, PA16_PF_LD10, PA17_PF_LD11, PA18_PF_LD12, PA19_PF_LD13, PA20_PF_LD14, PA21_PF_LD15, PA22_PF_LD16, PA23_PF_LD17, PA24_PF_REV, PA25_PF_CLS, PA26_PF_PS, PA27_PF_SPL_SPR, PA28_PF_HSYNC, PA29_PF_VSYNC, PA30_PF_CONTRAST, PA31_PF_OE_ACD, /* OWIRE */ PE16_AF_OWIRE, /* SDHC1*/ PE18_PF_SD1_D0, PE19_PF_SD1_D1, PE20_PF_SD1_D2, PE21_PF_SD1_D3, PE22_PF_SD1_CMD, PE23_PF_SD1_CLK, /* SDHC2*/ PB4_PF_SD2_D0, PB5_PF_SD2_D1, PB6_PF_SD2_D2, PB7_PF_SD2_D3, PB8_PF_SD2_CMD, PB9_PF_SD2_CLK, }; static const struct mxc_nand_platform_data mx27ads_nand_board_info __initconst = { .width = 1, .hw_ecc = 1, }; /* ADS's NOR flash */ static struct physmap_flash_data mx27ads_flash_data = { .width = 2, }; static struct resource mx27ads_flash_resource = { .start = 0xc0000000, .end = 0xc0000000 + 0x02000000 - 1, .flags = IORESOURCE_MEM, }; static struct platform_device mx27ads_nor_mtd_device = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &mx27ads_flash_data, }, .num_resources = 1, .resource = &mx27ads_flash_resource, }; static const struct imxi2c_platform_data mx27ads_i2c1_data __initconst = { .bitrate = 100000, }; static struct i2c_board_info mx27ads_i2c_devices[] = { }; void lcd_power(int on) { if (on) __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG); else __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG); } static struct imx_fb_videomode mx27ads_modes[] = { { .mode = { .name = "Sharp-LQ035Q7", .refresh = 60, .xres = 240, .yres = 320, .pixclock = 188679, /* in ps (5.3MHz) */ .hsync_len = 1, .left_margin = 9, .right_margin = 16, .vsync_len = 1, .upper_margin = 7, .lower_margin = 9, }, .bpp = 16, .pcr = 0xFB008BC0, }, }; static struct imx_fb_platform_data mx27ads_fb_data = { .mode = mx27ads_modes, .num_modes = ARRAY_SIZE(mx27ads_modes), /* * - HSYNC active high * - VSYNC active high * - clk notenabled while idle * - clock inverted * - data not inverted * - data enable low active * - enable sharp mode */ .pwmr = 0x00A903FF, .lscr1 = 0x00120300, .dmacr = 0x00020010, .lcd_power = lcd_power, }; static int mx27ads_sdhc1_init(struct device *dev, irq_handler_t detect_irq, void *data) { return request_irq(IRQ_GPIOE(21), detect_irq, IRQF_TRIGGER_RISING, "sdhc1-card-detect", data); } static int mx27ads_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data) { return request_irq(IRQ_GPIOB(7), detect_irq, IRQF_TRIGGER_RISING, "sdhc2-card-detect", data); } static void mx27ads_sdhc1_exit(struct device *dev, void *data) { free_irq(IRQ_GPIOE(21), data); } static void mx27ads_sdhc2_exit(struct device *dev, void *data) { free_irq(IRQ_GPIOB(7), data); } static struct imxmmc_platform_data sdhc1_pdata = { .init = mx27ads_sdhc1_init, .exit = mx27ads_sdhc1_exit, }; static struct imxmmc_platform_data sdhc2_pdata = { .init = mx27ads_sdhc2_init, .exit = mx27ads_sdhc2_exit, }; static struct platform_device *platform_devices[] __initdata = { &mx27ads_nor_mtd_device, &mxc_w1_master_device, }; static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; static void __init mx27ads_board_init(void) { mxc_gpio_setup_multiple_pins(mx27ads_pins, ARRAY_SIZE(mx27ads_pins), "mx27ads"); imx27_add_imx_uart0(&uart_pdata); imx27_add_imx_uart1(&uart_pdata); imx27_add_imx_uart2(&uart_pdata); imx27_add_imx_uart3(&uart_pdata); imx27_add_imx_uart4(&uart_pdata); imx27_add_imx_uart5(&uart_pdata); imx27_add_mxc_nand(&mx27ads_nand_board_info); /* only the i2c master 1 is used on this CPU card */ i2c_register_board_info(1, mx27ads_i2c_devices, ARRAY_SIZE(mx27ads_i2c_devices)); imx27_add_imx_i2c(1, &mx27ads_i2c1_data); mxc_register_device(&mxc_fb_device, &mx27ads_fb_data); mxc_register_device(&mxc_sdhc_device0, &sdhc1_pdata); mxc_register_device(&mxc_sdhc_device1, &sdhc2_pdata); imx27_add_fec(NULL); platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); } static void __init mx27ads_timer_init(void) { unsigned long fref = 26000000; if ((__raw_readw(PBC_VERSION_REG) & CKIH_27MHZ_BIT_SET) == 0) fref = 27000000; mx27_clocks_init(fref); } static struct sys_timer mx27ads_timer = { .init = mx27ads_timer_init, }; static struct map_desc mx27ads_io_desc[] __initdata = { { .virtual = PBC_BASE_ADDRESS, .pfn = __phys_to_pfn(MX27_CS4_BASE_ADDR), .length = SZ_1M, .type = MT_DEVICE, }, }; static void __init mx27ads_map_io(void) { mx27_map_io(); iotable_init(mx27ads_io_desc, ARRAY_SIZE(mx27ads_io_desc)); } MACHINE_START(MX27ADS, "Freescale i.MX27ADS") /* maintainer: Freescale Semiconductor, Inc. */ .boot_params = MX27_PHYS_OFFSET + 0x100, .map_io = mx27ads_map_io, .init_irq = mx27_init_irq, .init_machine = mx27ads_board_init, .timer = &mx27ads_timer, MACHINE_END