| /* |
| * 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 <linux/platform_device.h> |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/map.h> |
| #include <linux/mtd/partitions.h> |
| #include <linux/mtd/physmap.h> |
| #include <linux/i2c.h> |
| #include <linux/irq.h> |
| #include <mach/common.h> |
| #include <mach/hardware.h> |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/time.h> |
| #include <asm/mach/map.h> |
| #include <mach/gpio.h> |
| #include <mach/iomux-mx27.h> |
| |
| #include "devices-imx27.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 const struct imx_fb_platform_data mx27ads_fb_data __initconst = { |
| .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 const struct imxmmc_platform_data sdhc1_pdata __initconst = { |
| .init = mx27ads_sdhc1_init, |
| .exit = mx27ads_sdhc1_exit, |
| }; |
| |
| static const struct imxmmc_platform_data sdhc2_pdata __initconst = { |
| .init = mx27ads_sdhc2_init, |
| .exit = mx27ads_sdhc2_exit, |
| }; |
| |
| static struct platform_device *platform_devices[] __initdata = { |
| &mx27ads_nor_mtd_device, |
| }; |
| |
| static const struct imxuart_platform_data uart_pdata __initconst = { |
| .flags = IMXUART_HAVE_RTSCTS, |
| }; |
| |
| static void __init mx27ads_board_init(void) |
| { |
| imx27_soc_init(); |
| |
| 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); |
| imx27_add_imx_fb(&mx27ads_fb_data); |
| imx27_add_mxc_mmc(0, &sdhc1_pdata); |
| imx27_add_mxc_mmc(1, &sdhc2_pdata); |
| |
| imx27_add_fec(NULL); |
| platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); |
| imx27_add_mxc_w1(NULL); |
| } |
| |
| 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_early = imx27_init_early, |
| .init_irq = mx27_init_irq, |
| .handle_irq = imx27_handle_irq, |
| .timer = &mx27ads_timer, |
| .init_machine = mx27ads_board_init, |
| MACHINE_END |
