/* * 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 "devices-imx21.h" /* * Memory-mapped I/O on MX21ADS base board */ #define MX21ADS_MMIO_BASE_ADDR 0xf5000000 #define MX21ADS_MMIO_SIZE SZ_16M #define MX21ADS_REG_ADDR(offset) (void __force __iomem *) \ (MX21ADS_MMIO_BASE_ADDR + (offset)) #define MX21ADS_CS8900A_IRQ IRQ_GPIOE(11) #define MX21ADS_CS8900A_IOBASE_REG MX21ADS_REG_ADDR(0x000000) #define MX21ADS_ST16C255_IOBASE_REG MX21ADS_REG_ADDR(0x200000) #define MX21ADS_VERSION_REG MX21ADS_REG_ADDR(0x400000) #define MX21ADS_IO_REG MX21ADS_REG_ADDR(0x800000) /* MX21ADS_IO_REG bit definitions */ #define MX21ADS_IO_SD_WP 0x0001 /* read */ #define MX21ADS_IO_TP6 0x0001 /* write */ #define MX21ADS_IO_SW_SEL 0x0002 /* read */ #define MX21ADS_IO_TP7 0x0002 /* write */ #define MX21ADS_IO_RESET_E_UART 0x0004 #define MX21ADS_IO_RESET_BASE 0x0008 #define MX21ADS_IO_CSI_CTL2 0x0010 #define MX21ADS_IO_CSI_CTL1 0x0020 #define MX21ADS_IO_CSI_CTL0 0x0040 #define MX21ADS_IO_UART1_EN 0x0080 #define MX21ADS_IO_UART4_EN 0x0100 #define MX21ADS_IO_LCDON 0x0200 #define MX21ADS_IO_IRDA_EN 0x0400 #define MX21ADS_IO_IRDA_FIR_SEL 0x0800 #define MX21ADS_IO_IRDA_MD0_B 0x1000 #define MX21ADS_IO_IRDA_MD1 0x2000 #define MX21ADS_IO_LED4_ON 0x4000 #define MX21ADS_IO_LED3_ON 0x8000 static const int mx21ads_pins[] __initconst = { /* CS8900A */ (GPIO_PORTE | GPIO_GPIO | GPIO_IN | 11), /* UART1 */ PE12_PF_UART1_TXD, PE13_PF_UART1_RXD, PE14_PF_UART1_CTS, PE15_PF_UART1_RTS, /* UART3 (IrDA) - only TXD and RXD */ PE8_PF_UART3_TXD, PE9_PF_UART3_RXD, /* UART4 */ PB26_AF_UART4_RTS, PB28_AF_UART4_TXD, PB29_AF_UART4_CTS, PB31_AF_UART4_RXD, /* LCDC */ 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, PA24_PF_REV, /* Sharp panel dedicated signal */ PA25_PF_CLS, /* Sharp panel dedicated signal */ PA26_PF_PS, /* Sharp panel dedicated signal */ PA27_PF_SPL_SPR, /* Sharp panel dedicated signal */ PA28_PF_HSYNC, PA29_PF_VSYNC, PA30_PF_CONTRAST, PA31_PF_OE_ACD, /* MMC/SDHC */ PE18_PF_SD1_D0, PE19_PF_SD1_D1, PE20_PF_SD1_D2, PE21_PF_SD1_D3, PE22_PF_SD1_CMD, PE23_PF_SD1_CLK, /* NFC */ PF0_PF_NRFB, PF1_PF_NFCE, PF2_PF_NFWP, PF3_PF_NFCLE, PF4_PF_NFALE, PF5_PF_NFRE, PF6_PF_NFWE, PF7_PF_NFIO0, PF8_PF_NFIO1, PF9_PF_NFIO2, PF10_PF_NFIO3, PF11_PF_NFIO4, PF12_PF_NFIO5, PF13_PF_NFIO6, PF14_PF_NFIO7, }; /* ADS's NOR flash: 2x AM29BDS128HE9VKI on 32-bit bus */ static struct physmap_flash_data mx21ads_flash_data = { .width = 4, }; static struct resource mx21ads_flash_resource = { .start = MX21_CS0_BASE_ADDR, .end = MX21_CS0_BASE_ADDR + 0x02000000 - 1, .flags = IORESOURCE_MEM, }; static struct platform_device mx21ads_nor_mtd_device = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &mx21ads_flash_data, }, .num_resources = 1, .resource = &mx21ads_flash_resource, }; static const struct imxuart_platform_data uart_pdata_rts __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; static const struct imxuart_platform_data uart_pdata_norts __initconst = { }; static int mx21ads_fb_init(struct platform_device *pdev) { u16 tmp; tmp = __raw_readw(MX21ADS_IO_REG); tmp |= MX21ADS_IO_LCDON; __raw_writew(tmp, MX21ADS_IO_REG); return 0; } static void mx21ads_fb_exit(struct platform_device *pdev) { u16 tmp; tmp = __raw_readw(MX21ADS_IO_REG); tmp &= ~MX21ADS_IO_LCDON; __raw_writew(tmp, MX21ADS_IO_REG); } /* * Connected is a portrait Sharp-QVGA display * of type: LQ035Q7DB02 */ static struct imx_fb_videomode mx21ads_modes[] = { { .mode = { .name = "Sharp-LQ035Q7", .refresh = 60, .xres = 240, .yres = 320, .pixclock = 188679, /* in ps (5.3MHz) */ .hsync_len = 2, .left_margin = 6, .right_margin = 16, .vsync_len = 1, .upper_margin = 8, .lower_margin = 10, }, .pcr = 0xfb108bc7, .bpp = 16, }, }; static const struct imx_fb_platform_data mx21ads_fb_data __initconst = { .mode = mx21ads_modes, .num_modes = ARRAY_SIZE(mx21ads_modes), .pwmr = 0x00a903ff, .lscr1 = 0x00120300, .dmacr = 0x00020008, .init = mx21ads_fb_init, .exit = mx21ads_fb_exit, }; static int mx21ads_sdhc_get_ro(struct device *dev) { return (__raw_readw(MX21ADS_IO_REG) & MX21ADS_IO_SD_WP) ? 1 : 0; } static int mx21ads_sdhc_init(struct device *dev, irq_handler_t detect_irq, void *data) { return request_irq(IRQ_GPIOD(25), detect_irq, IRQF_TRIGGER_FALLING, "mmc-detect", data); } static void mx21ads_sdhc_exit(struct device *dev, void *data) { free_irq(IRQ_GPIOD(25), data); } static const struct imxmmc_platform_data mx21ads_sdhc_pdata __initconst = { .ocr_avail = MMC_VDD_29_30 | MMC_VDD_30_31, /* 3.0V */ .get_ro = mx21ads_sdhc_get_ro, .init = mx21ads_sdhc_init, .exit = mx21ads_sdhc_exit, }; static const struct mxc_nand_platform_data mx21ads_nand_board_info __initconst = { .width = 1, .hw_ecc = 1, }; static struct map_desc mx21ads_io_desc[] __initdata = { /* * Memory-mapped I/O on MX21ADS Base board: * - CS8900A Ethernet controller * - ST16C2552CJ UART * - CPU and Base board version * - Base board I/O register */ { .virtual = MX21ADS_MMIO_BASE_ADDR, .pfn = __phys_to_pfn(MX21_CS1_BASE_ADDR), .length = MX21ADS_MMIO_SIZE, .type = MT_DEVICE, }, }; static void __init mx21ads_map_io(void) { mx21_map_io(); iotable_init(mx21ads_io_desc, ARRAY_SIZE(mx21ads_io_desc)); } static struct platform_device *platform_devices[] __initdata = { &mx21ads_nor_mtd_device, }; static void __init mx21ads_board_init(void) { imx21_soc_init(); mxc_gpio_setup_multiple_pins(mx21ads_pins, ARRAY_SIZE(mx21ads_pins), "mx21ads"); imx21_add_imx_uart0(&uart_pdata_rts); imx21_add_imx_uart2(&uart_pdata_norts); imx21_add_imx_uart3(&uart_pdata_rts); imx21_add_imx_fb(&mx21ads_fb_data); imx21_add_mxc_mmc(0, &mx21ads_sdhc_pdata); imx21_add_mxc_nand(&mx21ads_nand_board_info); platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); } static void __init mx21ads_timer_init(void) { mx21_clocks_init(32768, 26000000); } static struct sys_timer mx21ads_timer = { .init = mx21ads_timer_init, }; MACHINE_START(MX21ADS, "Freescale i.MX21ADS") /* maintainer: Freescale Semiconductor, Inc. */ .atag_offset = 0x100, .map_io = mx21ads_map_io, .init_early = imx21_init_early, .init_irq = mx21_init_irq, .handle_irq = imx21_handle_irq, .timer = &mx21ads_timer, .init_machine = mx21ads_board_init, MACHINE_END