Atmark Armadillo 500 board support.

Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 309 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/armadillo5x0.c b/arch/arm/mach-mx3/armadillo5x0.c
new file mode 100644
index 000000000000..cac4538e20eb
--- /dev/null
+++ b/arch/arm/mach-mx3/armadillo5x0.c
@@ -0,0 +1,309 @@
+/*
+ * armadillo5x0.c
+ *
+ * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
+ * updates in http://alberdroid.blogspot.com/
+ *
+ * Based on Atmark Techno, Inc. armadillo 500 BSP 2008
+ * Based on mx31ads.c and pcm037.c Great Work!
+ *
+ * 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/types.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/smsc911x.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/memory.h>
+#include <asm/mach/map.h>
+
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux-mx3.h>
+#include <mach/board-armadillo5x0.h>
+#include <mach/mmc.h>
+#include <mach/ipu.h>
+#include <mach/mx3fb.h>
+
+#include "devices.h"
+
+static int armadillo5x0_pins[] = {
+        /* UART1 */
+        MX31_PIN_CTS1__CTS1,
+        MX31_PIN_RTS1__RTS1,
+        MX31_PIN_TXD1__TXD1,
+        MX31_PIN_RXD1__RXD1,
+        /* UART2 */
+        MX31_PIN_CTS2__CTS2,
+        MX31_PIN_RTS2__RTS2,
+        MX31_PIN_TXD2__TXD2,
+        MX31_PIN_RXD2__RXD2,
+        /* LAN9118_IRQ */
+        IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO),
+        /* SDHC1 */
+        MX31_PIN_SD1_DATA3__SD1_DATA3,
+        MX31_PIN_SD1_DATA2__SD1_DATA2,
+        MX31_PIN_SD1_DATA1__SD1_DATA1,
+        MX31_PIN_SD1_DATA0__SD1_DATA0,
+        MX31_PIN_SD1_CLK__SD1_CLK,
+        MX31_PIN_SD1_CMD__SD1_CMD,
+        /* Framebuffer */
+        MX31_PIN_LD0__LD0,
+        MX31_PIN_LD1__LD1,
+        MX31_PIN_LD2__LD2,
+        MX31_PIN_LD3__LD3,
+        MX31_PIN_LD4__LD4,
+        MX31_PIN_LD5__LD5,
+        MX31_PIN_LD6__LD6,
+        MX31_PIN_LD7__LD7,
+        MX31_PIN_LD8__LD8,
+        MX31_PIN_LD9__LD9,
+        MX31_PIN_LD10__LD10,
+        MX31_PIN_LD11__LD11,
+        MX31_PIN_LD12__LD12,
+        MX31_PIN_LD13__LD13,
+        MX31_PIN_LD14__LD14,
+        MX31_PIN_LD15__LD15,
+        MX31_PIN_LD16__LD16,
+        MX31_PIN_LD17__LD17,
+        MX31_PIN_VSYNC3__VSYNC3,
+        MX31_PIN_HSYNC__HSYNC,
+        MX31_PIN_FPSHIFT__FPSHIFT,
+        MX31_PIN_DRDY0__DRDY0,
+        IOMUX_MODE(MX31_PIN_LCS1, IOMUX_CONFIG_GPIO), /*ADV7125_PSAVE*/
+
+};
+
+/*
+ * FB support
+ */
+static const struct fb_videomode fb_modedb[] = {
+        {       /* 640x480 @ 60 Hz */
+                .name           = "CRT-VGA",
+                .refresh        = 60,
+                .xres           = 640,
+                .yres           = 480,
+                .pixclock       = 39721,
+                .left_margin    = 35,
+                .right_margin   = 115,
+                .upper_margin   = 43,
+                .lower_margin   = 1,
+                .hsync_len      = 10,
+                .vsync_len      = 1,
+                .sync           = FB_SYNC_OE_ACT_HIGH,
+                .vmode          = FB_VMODE_NONINTERLACED,
+                .flag           = 0,
+        }, {/* 800x600 @ 56 Hz */
+                .name           = "CRT-SVGA",
+                .refresh        = 56,
+                .xres           = 800,
+                .yres           = 600,
+                .pixclock       = 30000,
+                .left_margin    = 30,
+                .right_margin   = 108,
+                .upper_margin   = 13,
+                .lower_margin   = 10,
+                .hsync_len      = 10,
+                .vsync_len      = 1,
+                .sync           = FB_SYNC_OE_ACT_HIGH | FB_SYNC_HOR_HIGH_ACT |
+                                  FB_SYNC_VERT_HIGH_ACT,
+                .vmode          = FB_VMODE_NONINTERLACED,
+                .flag           = 0,
+        },
+};
+
+static struct ipu_platform_data mx3_ipu_data = {
+        .irq_base = MXC_IPU_IRQ_START,
+};
+
+static struct mx3fb_platform_data mx3fb_pdata = {
+        .dma_dev        = &mx3_ipu.dev,
+        .name           = "CRT-VGA",
+        .mode           = fb_modedb,
+        .num_modes      = ARRAY_SIZE(fb_modedb),
+};
+
+/*
+ * SDHC 1
+ * MMC support
+ */
+static int armadillo5x0_sdhc1_get_ro(struct device *dev)
+{
+        return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
+}
+
+static int armadillo5x0_sdhc1_init(struct device *dev,
+                                   irq_handler_t detect_irq, void *data)
+{
+        int ret;
+        int gpio_det, gpio_wp;
+
+        gpio_det = IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK);
+        gpio_wp = IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B);
+
+        ret = gpio_request(gpio_det, "sdhc-card-detect");
+        if (ret)
+                return ret;
+
+        gpio_direction_input(gpio_det);
+
+        ret = gpio_request(gpio_wp, "sdhc-write-protect");
+        if (ret)
+                goto err_gpio_free;
+
+        gpio_direction_input(gpio_wp);
+
+        /* When supported the trigger type have to be BOTH */
+        ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), detect_irq,
+                          IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+                          "sdhc-detect", data);
+
+        if (ret)
+                goto err_gpio_free_2;
+
+        return 0;
+
+err_gpio_free_2:
+        gpio_free(gpio_wp);
+
+err_gpio_free:
+        gpio_free(gpio_det);
+
+        return ret;
+
+}
+
+static void armadillo5x0_sdhc1_exit(struct device *dev, void *data)
+{
+        free_irq(IOMUX_TO_IRQ(MX31_PIN_ATA_DMACK), data);
+        gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK));
+        gpio_free(IOMUX_TO_GPIO(MX31_PIN_ATA_RESET_B));
+}
+
+static struct imxmmc_platform_data sdhc_pdata = {
+        .get_ro = armadillo5x0_sdhc1_get_ro,
+        .init = armadillo5x0_sdhc1_init,
+        .exit = armadillo5x0_sdhc1_exit,
+};
+
+/*
+ * SMSC 9118
+ * Network support
+ */
+static struct resource armadillo5x0_smc911x_resources[] = {
+        {
+                .start  = CS3_BASE_ADDR,
+                .end    = CS3_BASE_ADDR + SZ_32M - 1,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .start  = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
+                .end    = IOMUX_TO_IRQ(MX31_PIN_GPIO1_0),
+                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+        },
+};
+
+static struct smsc911x_platform_config smsc911x_info = {
+        .flags          = SMSC911X_USE_32BIT,
+        .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+        .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
+};
+
+static struct platform_device armadillo5x0_smc911x_device = {
+        .name           = "smsc911x",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(armadillo5x0_smc911x_resources),
+        .resource       = armadillo5x0_smc911x_resources,
+        .dev            = {
+                .platform_data = &smsc911x_info,
+        },
+};
+
+/* UART device data */
+static struct imxuart_platform_data uart_pdata = {
+        .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct platform_device *devices[] __initdata = {
+        &armadillo5x0_smc911x_device,
+};
+
+/*
+ * Perform board specific initializations
+ */
+static void __init armadillo5x0_init(void)
+{
+        mxc_iomux_setup_multiple_pins(armadillo5x0_pins,
+                        ARRAY_SIZE(armadillo5x0_pins), "armadillo5x0");
+
+        platform_add_devices(devices, ARRAY_SIZE(devices));
+
+        /* Register UART */
+        mxc_register_device(&mxc_uart_device0, &uart_pdata);
+        mxc_register_device(&mxc_uart_device1, &uart_pdata);
+
+        /* SMSC9118 IRQ pin */
+        gpio_direction_input(MX31_PIN_GPIO1_0);
+
+        /* Register SDHC */
+        mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
+
+        /* Register FB */
+        mxc_register_device(&mx3_ipu, &mx3_ipu_data);
+        mxc_register_device(&mx3_fb, &mx3fb_pdata);
+}
+
+/*
+ * Set up static virtual mappings.
+ */
+static void __init armadillo5x0_map_io(void)
+{
+        /*
+         * Maps:
+         * - NAND, SDRAM, WEIM, M3IF, EMI controllers
+         * - AVIC (Vectored Interrupt controller)
+         * - AIPS1 and AIPS2
+         **/
+        mxc_map_io();
+}
+
+static void __init armadillo5x0_timer_init(void)
+{
+        mx31_clocks_init(26000000);
+}
+
+static struct sys_timer armadillo5x0_timer = {
+        .init   = armadillo5x0_timer_init,
+};
+
+MACHINE_START(ARMADILLO5X0, "Armadillo-500")
+        /* Maintainer: Alberto Panizzo  */
+        .phys_io        = AIPS1_BASE_ADDR,
+        .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+        .boot_params    = PHYS_OFFSET + 0x00000100,
+        .map_io         = armadillo5x0_map_io,
+        .init_irq       = mxc_init_irq,
+        .timer          = &armadillo5x0_timer,
+        .init_machine   = armadillo5x0_init,
+MACHINE_END