MXC: mx21ads base support
authorIvo Clarysse <ivo.clarysse@gmail.com>
Wed, 15 Apr 2009 13:39:27 +0000 (15:39 +0200)
committerSascha Hauer <s.hauer@pengutronix.de>
Thu, 7 May 2009 14:16:24 +0000 (16:16 +0200)
[PATCH v6] MXC: mx21ads base support

Base machine support for the  Freescale i.MX21ADS
(M9328MX21ADSE) Application Development System.

Signed-off-by: Ivo Clarysse <ivo.clarysse@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
arch/arm/mach-mx2/Kconfig
arch/arm/mach-mx2/Makefile
arch/arm/mach-mx2/mx21ads.c [new file with mode: 0644]
arch/arm/plat-mxc/include/mach/board-mx21ads.h [new file with mode: 0644]
arch/arm/plat-mxc/include/mach/debug-macro.S

index 42a7888..7ce3712 100644 (file)
@@ -18,6 +18,13 @@ endchoice
 
 comment "MX2 platforms:"
 
+config MACH_MX21ADS
+       bool "MX21ADS platform"
+       depends on MACH_MX21
+       help
+         Include support for MX21ADS platform. This includes specific
+         configurations for the board and its peripherals.
+
 config MACH_MX27ADS
        bool "MX27ADS platform"
        depends on MACH_MX27
index 950649a..e583754 100644 (file)
@@ -11,6 +11,7 @@ obj-$(CONFIG_MACH_MX21) += clock_imx21.o
 obj-$(CONFIG_MACH_MX27) += cpu_imx27.o
 obj-$(CONFIG_MACH_MX27) += clock_imx27.o
 
+obj-$(CONFIG_MACH_MX21ADS) += mx21ads.o
 obj-$(CONFIG_MACH_MX27ADS) += mx27ads.o
 obj-$(CONFIG_MACH_PCM038) += pcm038.o
 obj-$(CONFIG_MACH_PCM970_BASEBOARD) += pcm970-baseboard.o
diff --git a/arch/arm/mach-mx2/mx21ads.c b/arch/arm/mach-mx2/mx21ads.c
new file mode 100644 (file)
index 0000000..a5ee461
--- /dev/null
@@ -0,0 +1,286 @@
+/*
+ *  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.
+ *
+ * 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 <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/physmap.h>
+#include <linux/gpio.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/imx-uart.h>
+#include <mach/imxfb.h>
+#include <mach/iomux.h>
+#include <mach/mxc_nand.h>
+#include <mach/mmc.h>
+#include <mach/board-mx21ads.h>
+
+#include "devices.h"
+
+static unsigned int mx21ads_pins[] = {
+
+       /* CS8900A */
+       (GPIO_PORTE | GPIO_GPIO | GPIO_IN | 11),
+
+       /* UART1 */
+       PE12_PF_UART1_TXD,
+       PE13_PF_UART1_RXD,
+       PE14_PF_UART1_CTS,
+       PE15_PF_UART1_RTS,
+
+       /* UART3 (IrDA) - only TXD and RXD */
+       PE8_PF_UART3_TXD,
+       PE9_PF_UART3_RXD,
+
+       /* UART4 */
+       PB26_AF_UART4_RTS,
+       PB28_AF_UART4_TXD,
+       PB29_AF_UART4_CTS,
+       PB31_AF_UART4_RXD,
+
+       /* LCDC */
+       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,
+       PA24_PF_REV,     /* Sharp panel dedicated signal */
+       PA25_PF_CLS,     /* Sharp panel dedicated signal */
+       PA26_PF_PS,      /* Sharp panel dedicated signal */
+       PA27_PF_SPL_SPR, /* Sharp panel dedicated signal */
+       PA28_PF_HSYNC,
+       PA29_PF_VSYNC,
+       PA30_PF_CONTRAST,
+       PA31_PF_OE_ACD,
+
+       /* MMC/SDHC */
+       PE18_PF_SD1_D0,
+       PE19_PF_SD1_D1,
+       PE20_PF_SD1_D2,
+       PE21_PF_SD1_D3,
+       PE22_PF_SD1_CMD,
+       PE23_PF_SD1_CLK,
+
+       /* NFC */
+       PF0_PF_NRFB,
+       PF1_PF_NFCE,
+       PF2_PF_NFWP,
+       PF3_PF_NFCLE,
+       PF4_PF_NFALE,
+       PF5_PF_NFRE,
+       PF6_PF_NFWE,
+       PF7_PF_NFIO0,
+       PF8_PF_NFIO1,
+       PF9_PF_NFIO2,
+       PF10_PF_NFIO3,
+       PF11_PF_NFIO4,
+       PF12_PF_NFIO5,
+       PF13_PF_NFIO6,
+       PF14_PF_NFIO7,
+};
+
+/* ADS's NOR flash: 2x AM29BDS128HE9VKI on 32-bit bus */
+static struct physmap_flash_data mx21ads_flash_data = {
+       .width = 4,
+};
+
+static struct resource mx21ads_flash_resource = {
+       .start = CS0_BASE_ADDR,
+       .end = CS0_BASE_ADDR + 0x02000000 - 1,
+       .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device mx21ads_nor_mtd_device = {
+       .name = "physmap-flash",
+       .id = 0,
+       .dev = {
+               .platform_data = &mx21ads_flash_data,
+       },
+       .num_resources = 1,
+       .resource = &mx21ads_flash_resource,
+};
+
+static struct imxuart_platform_data uart_pdata = {
+       .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct imxuart_platform_data uart_norts_pdata = {
+};
+
+
+static int mx21ads_fb_init(struct platform_device *pdev)
+{
+       u16 tmp;
+
+       tmp = __raw_readw(MX21ADS_IO_REG);
+       tmp |= MX21ADS_IO_LCDON;
+       __raw_writew(tmp, MX21ADS_IO_REG);
+       return 0;
+}
+
+static void mx21ads_fb_exit(struct platform_device *pdev)
+{
+       u16 tmp;
+
+       tmp = __raw_readw(MX21ADS_IO_REG);
+       tmp &= ~MX21ADS_IO_LCDON;
+       __raw_writew(tmp, MX21ADS_IO_REG);
+}
+
+/*
+ * Connected is a portrait Sharp-QVGA display
+ * of type: LQ035Q7DB02
+ */
+static struct imx_fb_platform_data mx21ads_fb_data = {
+       .pixclock       = 188679, /* in ps */
+       .xres           = 240,
+       .yres           = 320,
+
+       .bpp            = 16,
+       .hsync_len      = 2,
+       .left_margin    = 6,
+       .right_margin   = 16,
+
+       .vsync_len      = 1,
+       .upper_margin   = 8,
+       .lower_margin   = 10,
+       .fixed_screen_cpu = 0,
+
+       .pcr            = 0xFB108BC7,
+       .pwmr           = 0x00A901ff,
+       .lscr1          = 0x00120300,
+       .dmacr          = 0x00020008,
+
+       .init = mx21ads_fb_init,
+       .exit = mx21ads_fb_exit,
+};
+
+static int mx21ads_sdhc_get_ro(struct device *dev)
+{
+       return (__raw_readw(MX21ADS_IO_REG) & MX21ADS_IO_SD_WP) ? 1 : 0;
+}
+
+static int mx21ads_sdhc_init(struct device *dev, irq_handler_t detect_irq,
+       void *data)
+{
+       int ret;
+
+       ret = request_irq(IRQ_GPIOD(25), detect_irq,
+               IRQF_TRIGGER_FALLING, "mmc-detect", data);
+       if (ret)
+               goto out;
+       return 0;
+out:
+       return ret;
+}
+
+static void mx21ads_sdhc_exit(struct device *dev, void *data)
+{
+       free_irq(IRQ_GPIOD(25), data);
+}
+
+static struct imxmmc_platform_data mx21ads_sdhc_pdata = {
+       .ocr_avail = MMC_VDD_29_30 | MMC_VDD_30_31, /* 3.0V */
+       .get_ro = mx21ads_sdhc_get_ro,
+       .init = mx21ads_sdhc_init,
+       .exit = mx21ads_sdhc_exit,
+};
+
+static struct mxc_nand_platform_data mx21ads_nand_board_info = {
+       .width = 1,
+       .hw_ecc = 1,
+};
+
+static struct map_desc mx21ads_io_desc[] __initdata = {
+       /*
+        * Memory-mapped I/O on MX21ADS Base board:
+        *   - CS8900A Ethernet controller
+        *   - ST16C2552CJ UART
+        *   - CPU and Base board version
+        *   - Base board I/O register
+        */
+       {
+               .virtual = MX21ADS_MMIO_BASE_ADDR,
+               .pfn = __phys_to_pfn(CS1_BASE_ADDR),
+               .length = MX21ADS_MMIO_SIZE,
+               .type = MT_DEVICE,
+       },
+};
+
+static void __init mx21ads_map_io(void)
+{
+       mx21_map_io();
+       iotable_init(mx21ads_io_desc, ARRAY_SIZE(mx21ads_io_desc));
+}
+
+static struct platform_device *platform_devices[] __initdata = {
+       &mx21ads_nor_mtd_device,
+};
+
+static void __init mx21ads_board_init(void)
+{
+       mxc_gpio_setup_multiple_pins(mx21ads_pins, ARRAY_SIZE(mx21ads_pins),
+                       "mx21ads");
+
+       mxc_register_device(&mxc_uart_device0, &uart_pdata);
+       mxc_register_device(&mxc_uart_device2, &uart_norts_pdata);
+       mxc_register_device(&mxc_uart_device3, &uart_pdata);
+       mxc_register_device(&mxc_fb_device, &mx21ads_fb_data);
+       mxc_register_device(&mxc_sdhc_device0, &mx21ads_sdhc_pdata);
+       mxc_register_device(&mxc_nand_device, &mx21ads_nand_board_info);
+
+       platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+}
+
+static void __init mx21ads_timer_init(void)
+{
+       mx21_clocks_init(32768, 26000000);
+}
+
+static struct sys_timer mx21ads_timer = {
+       .init   = mx21ads_timer_init,
+};
+
+MACHINE_START(MX21ADS, "Freescale i.MX21ADS")
+       /* maintainer: Freescale Semiconductor, Inc. */
+       .phys_io        = AIPI_BASE_ADDR,
+       .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+       .boot_params    = PHYS_OFFSET + 0x100,
+       .map_io         = mx21ads_map_io,
+       .init_irq       = mxc_init_irq,
+       .init_machine   = mx21ads_board_init,
+       .timer          = &mx21ads_timer,
+MACHINE_END
diff --git a/arch/arm/plat-mxc/include/mach/board-mx21ads.h b/arch/arm/plat-mxc/include/mach/board-mx21ads.h
new file mode 100644 (file)
index 0000000..06701df
--- /dev/null
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __ASM_ARCH_MXC_BOARD_MX21ADS_H__
+#define __ASM_ARCH_MXC_BOARD_MX21ADS_H__
+
+/*
+ * MXC UART EVB board level configurations
+ */
+#define MXC_LL_UART_PADDR       UART1_BASE_ADDR
+#define MXC_LL_UART_VADDR       AIPI_IO_ADDRESS(UART1_BASE_ADDR)
+
+/*
+ * Memory-mapped I/O on MX21ADS base board
+ */
+#define MX21ADS_MMIO_BASE_ADDR   0xF5000000
+#define MX21ADS_MMIO_SIZE        SZ_16M
+
+#define MX21ADS_REG_ADDR(offset)    (void __force __iomem *) \
+               (MX21ADS_MMIO_BASE_ADDR + (offset))
+
+#define MX21ADS_CS8900A_IRQ         IRQ_GPIOE(11)
+#define MX21ADS_CS8900A_IOBASE_REG  MX21ADS_REG_ADDR(0x000000)
+#define MX21ADS_ST16C255_IOBASE_REG MX21ADS_REG_ADDR(0x200000)
+#define MX21ADS_VERSION_REG         MX21ADS_REG_ADDR(0x400000)
+#define MX21ADS_IO_REG              MX21ADS_REG_ADDR(0x800000)
+
+/* MX21ADS_IO_REG bit definitions */
+#define MX21ADS_IO_SD_WP        0x0001 /* read */
+#define MX21ADS_IO_TP6          0x0001 /* write */
+#define MX21ADS_IO_SW_SEL       0x0002 /* read */
+#define MX21ADS_IO_TP7          0x0002 /* write */
+#define MX21ADS_IO_RESET_E_UART 0x0004
+#define MX21ADS_IO_RESET_BASE   0x0008
+#define MX21ADS_IO_CSI_CTL2     0x0010
+#define MX21ADS_IO_CSI_CTL1     0x0020
+#define MX21ADS_IO_CSI_CTL0     0x0040
+#define MX21ADS_IO_UART1_EN     0x0080
+#define MX21ADS_IO_UART4_EN     0x0100
+#define MX21ADS_IO_LCDON        0x0200
+#define MX21ADS_IO_IRDA_EN      0x0400
+#define MX21ADS_IO_IRDA_FIR_SEL 0x0800
+#define MX21ADS_IO_IRDA_MD0_B   0x1000
+#define MX21ADS_IO_IRDA_MD1     0x2000
+#define MX21ADS_IO_LED4_ON      0x4000
+#define MX21ADS_IO_LED3_ON      0x8000
+
+#endif                         /* __ASM_ARCH_MXC_BOARD_MX21ADS_H__ */
index 4e7c8d2..cc7e89d 100644 (file)
@@ -25,6 +25,9 @@
 #ifdef CONFIG_MACH_MX27ADS
 #include <mach/board-mx27ads.h>
 #endif
+#ifdef CONFIG_MACH_MX21ADS
+#include <mach/board-mx21ads.h>
+#endif
 #ifdef CONFIG_MACH_PCM038
 #include <mach/board-pcm038.h>
 #endif