diff options
Diffstat (limited to 'arch/arm/mach-imx/pcm970-baseboard.c')
| -rw-r--r-- | arch/arm/mach-imx/pcm970-baseboard.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/pcm970-baseboard.c b/arch/arm/mach-imx/pcm970-baseboard.c new file mode 100644 index 00000000000..f490a406d57 --- /dev/null +++ b/arch/arm/mach-imx/pcm970-baseboard.c @@ -0,0 +1,233 @@ +/* + * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) + * + * 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., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + +#include <linux/gpio.h> +#include <linux/irq.h> +#include <linux/platform_device.h> +#include <linux/can/platform/sja1000.h> + +#include <asm/mach/arch.h> + +#include <mach/common.h> +#include <mach/iomux-mx27.h> +#include <mach/imxfb.h> +#include <mach/hardware.h> +#include <mach/mmc.h> + +#include "devices.h" + +static int pcm970_pins[] = { + /* SDHC */ + PB4_PF_SD2_D0, + PB5_PF_SD2_D1, + PB6_PF_SD2_D2, + PB7_PF_SD2_D3, + PB8_PF_SD2_CMD, + PB9_PF_SD2_CLK, + /* display */ + 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, + /* + * it seems the data line misses a pullup, so we must enable + * the internal pullup as a local workaround + */ + PD17_PF_I2C_DATA | GPIO_PUEN, + PD18_PF_I2C_CLK, + /* Camera */ + PB10_PF_CSI_D0, + PB11_PF_CSI_D1, + PB12_PF_CSI_D2, + PB13_PF_CSI_D3, + PB14_PF_CSI_D4, + PB15_PF_CSI_MCLK, + PB16_PF_CSI_PIXCLK, + PB17_PF_CSI_D5, + PB18_PF_CSI_D6, + PB19_PF_CSI_D7, + PB20_PF_CSI_VSYNC, + PB21_PF_CSI_HSYNC, +}; + +static int pcm970_sdhc2_get_ro(struct device *dev) +{ + return gpio_get_value(GPIO_PORTC + 28); +} + +static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data) +{ + int ret; + + ret = request_irq(IRQ_GPIOC(29), detect_irq, IRQF_TRIGGER_FALLING, + "imx-mmc-detect", data); + if (ret) + return ret; + + ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro"); + if (ret) { + free_irq(IRQ_GPIOC(29), data); + return ret; + } + + gpio_direction_input(GPIO_PORTC + 28); + + return 0; +} + +static void pcm970_sdhc2_exit(struct device *dev, void *data) +{ + free_irq(IRQ_GPIOC(29), data); + gpio_free(GPIO_PORTC + 28); +} + +static struct imxmmc_platform_data sdhc_pdata = { + .get_ro = pcm970_sdhc2_get_ro, + .init = pcm970_sdhc2_init, + .exit = pcm970_sdhc2_exit, +}; + +static struct imx_fb_videomode pcm970_modes[] = { + { + .mode = { + .name = "Sharp-LQ035Q7", + .refresh = 60, + .xres = 240, + .yres = 320, + .pixclock = 188679, /* in ps (5.3MHz) */ + .hsync_len = 7, + .left_margin = 5, + .right_margin = 16, + .vsync_len = 1, + .upper_margin = 7, + .lower_margin = 9, + }, + /* + * - HSYNC active high + * - VSYNC active high + * - clk notenabled while idle + * - clock not inverted + * - data not inverted + * - data enable low active + * - enable sharp mode + */ + .pcr = 0xF00080C0, + .bpp = 16, + }, { + .mode = { + .name = "TX090", + .refresh = 60, + .xres = 240, + .yres = 320, + .pixclock = 38255, + .left_margin = 144, + .right_margin = 0, + .upper_margin = 7, + .lower_margin = 40, + .hsync_len = 96, + .vsync_len = 1, + }, + /* + * - HSYNC active low (1 << 22) + * - VSYNC active low (1 << 23) + * - clk notenabled while idle + * - clock not inverted + * - data not inverted + * - data enable low active + * - enable sharp mode + */ + .pcr = 0xF0008080 | (1<<22) | (1<<23) | (1<<19), + .bpp = 32, + }, +}; + +static struct imx_fb_platform_data pcm038_fb_data = { + .mode = pcm970_modes, + .num_modes = ARRAY_SIZE(pcm970_modes), + + .pwmr = 0x00A903FF, + .lscr1 = 0x00120300, + .dmacr = 0x00020010, +}; + +static struct resource pcm970_sja1000_resources[] = { + { + .start = MX27_CS4_BASE_ADDR, + .end = MX27_CS4_BASE_ADDR + 0x100 - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_GPIOE(19), + .end = IRQ_GPIOE(19), + .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, + }, +}; + +struct sja1000_platform_data pcm970_sja1000_platform_data = { + .osc_freq = 16000000, + .ocr = OCR_TX1_PULLDOWN | OCR_TX0_PUSHPULL, + .cdr = CDR_CBP, +}; + +static struct platform_device pcm970_sja1000 = { + .name = "sja1000_platform", + .dev = { + .platform_data = &pcm970_sja1000_platform_data, + }, + .resource = pcm970_sja1000_resources, + .num_resources = ARRAY_SIZE(pcm970_sja1000_resources), +}; + +/* + * system init for baseboard usage. Will be called by pcm038 init. + * + * Add platform devices present on this baseboard and init + * them from CPU side as far as required to use them later on + */ +void __init pcm970_baseboard_init(void) +{ + mxc_gpio_setup_multiple_pins(pcm970_pins, ARRAY_SIZE(pcm970_pins), + "PCM970"); + + mxc_register_device(&mxc_fb_device, &pcm038_fb_data); + mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_IN); + mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata); + platform_device_register(&pcm970_sja1000); +} |