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-rw-r--r--arch/arm/mach-imx/pcm970-baseboard.c233
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
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+++ b/arch/arm/mach-imx/pcm970-baseboard.c
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+/*
+ * 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);
+}
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