diff options
Diffstat (limited to 'arch/arm/boards/imx21ads/imx21ads.c')
| -rw-r--r-- | arch/arm/boards/imx21ads/imx21ads.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/arch/arm/boards/imx21ads/imx21ads.c b/arch/arm/boards/imx21ads/imx21ads.c new file mode 100644 index 0000000000..5e88af4fd8 --- /dev/null +++ b/arch/arm/boards/imx21ads/imx21ads.c @@ -0,0 +1,243 @@ +/* + * Copyright (C) 2009 Ivo Clarysse + * + * Based on imx27ads.c, + * Copyright (C) 2007 Sascha Hauer, Pengutronix + * + * 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 <common.h> +#include <net.h> +#include <init.h> +#include <environment.h> +#include <mach/imx-regs.h> +#include <asm/armlinux.h> +#include <asm/io.h> +#include <mach/gpio.h> +#include <partition.h> +#include <fs.h> +#include <fcntl.h> +#include <asm/mach-types.h> +#include <mach/imx-nand.h> +#include <mach/imxfb.h> +#include <mach/iomux-mx21.h> + +#define MX21ADS_IO_REG 0xCC800000 +#define MX21ADS_IO_LCDON (1 << 9) + +static struct device_d cfi_dev = { + .name = "cfi_flash", + .map_base = 0xC8000000, + .size = 32 * 1024 * 1024, +}; + +static struct memory_platform_data ram_pdata = { + .name = "ram0", + .flags = DEVFS_RDWR, +}; + +static struct device_d sdram_dev = { + .name = "mem", + .map_base = 0xc0000000, + .size = 64 * 1024 * 1024, + .platform_data = &ram_pdata, +}; + +struct imx_nand_platform_data nand_info = { + .width = 1, + .hw_ecc = 1, +}; + +static struct device_d nand_dev = { + .name = "imx_nand", + .map_base = 0xDF003000, + .platform_data = &nand_info, +}; + +static struct device_d cs8900_dev = { + .name = "cs8900", + .map_base = IMX_CS1_BASE, + // IRQ is connected to UART3_RTS +}; + +/* Sharp LQ035Q7DB02 QVGA display */ +static struct imx_fb_videomode imx_fb_modedata = { + .mode = { + .name = "Sharp-LQ035Q7", + .refresh = 60, + .xres = 240, + .yres = 320, + .pixclock = 188679, + .left_margin = 6, + .right_margin = 16, + .upper_margin = 8, + .lower_margin = 10, + .hsync_len = 2, + .vsync_len = 1, + .sync = 0, + .vmode = FB_VMODE_NONINTERLACED, + .flag = 0, + }, + .pcr = 0xfb108bc7, + .bpp = 16, +}; + +static struct imx_fb_platform_data imx_fb_data = { + .mode = &imx_fb_modedata, + .cmap_greyscale = 0, + .cmap_inverse = 0, + .cmap_static = 0, + .pwmr = 0x00a903ff, + .lscr1 = 0x00120300, + .dmacr = 0x00020008, +}; + +static struct device_d imxfb_dev = { + .name = "imxfb", + .map_base = 0x10021000, + .size = 0x1000, + .platform_data = &imx_fb_data, +}; + +static int imx21ads_timing_init(void) +{ + u32 temp; + + /* Configure External Interface Module */ + /* CS0: burst flash */ + CS0U = 0x00003E00; + CS0L = 0x00000E01; + + /* CS1: Ethernet controller, external UART, memory-mapped I/O (16-bit) */ + CS1U = 0x00002000; + CS1L = 0x11118501; + + /* CS2: disable (not available, since CSD0 in use) */ + CS2U = 0x0; + CS2L = 0x0; + + /* CS3: disable */ + CS3U = 0x0; + CS3L = 0x0; + /* CS4: disable */ + CS4U = 0x0; + CS4L = 0x0; + /* CS5: disable */ + CS5U = 0x0; + CS5L = 0x0; + + temp = PCDR0; + temp &= ~0xF000; + temp |= 0xA000; /* Set NFC divider; 0xA yields 24.18MHz */ + PCDR0 = temp; + + return 0; +} + +core_initcall(imx21ads_timing_init); + +static int mx21ads_devices_init(void) +{ + int i; + unsigned int mode[] = { + 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, + PE12_PF_UART1_TXD, + PE13_PF_UART1_RXD, + PE14_PF_UART1_CTS, + PE15_PF_UART1_RTS, + }; + + /* initizalize gpios */ + for (i = 0; i < ARRAY_SIZE(mode); i++) + imx_gpio_mode(mode[i]); + + register_device(&cfi_dev); + register_device(&sdram_dev); + register_device(&nand_dev); + register_device(&cs8900_dev); + register_device(&imxfb_dev); + + armlinux_add_dram(&sdram_dev); + armlinux_set_bootparams((void *)0xc0000100); + armlinux_set_architecture(MACH_TYPE_MX21ADS); + + return 0; +} + +device_initcall(mx21ads_devices_init); + +static int mx21ads_enable_display(void) +{ + u16 tmp; + + tmp = readw(MX21ADS_IO_REG); + tmp |= MX21ADS_IO_LCDON; + writew(tmp, MX21ADS_IO_REG); + return 0; +} + +late_initcall(mx21ads_enable_display); + +static struct device_d mx21ads_serial_device = { + .name = "imx_serial", + .map_base = IMX_UART1_BASE, + .size = 4096, +}; + +static int mx21ads_console_init(void) +{ + register_device(&mx21ads_serial_device); + return 0; +} + +console_initcall(mx21ads_console_init); + +#ifdef CONFIG_NAND_IMX_BOOT +void __bare_init nand_boot(void) +{ + PCCR0 |= PCCR0_NFC_EN; + imx_nand_load_image((void *)TEXT_BASE, 256 * 1024); +} +#endif + |