MXC: mx21ads base support

[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>

5 files changed, 355 insertions, 0 deletions

diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig
index 42a788842f49..7ce3712ab8ce 100644
--- a/arch/arm/mach-mx2/Kconfig
+++ b/arch/arm/mach-mx2/Kconfig
@@ -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
diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile
index 950649a91540..e583754febad 100644
--- a/arch/arm/mach-mx2/Makefile
+++ b/arch/arm/mach-mx2/Makefile
@@ -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
index 000000000000..a5ee461cb405
--- /dev/null
+++ b/arch/arm/mach-mx2/mx21ads.c
@@ -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
index 000000000000..06701df74c42
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/board-mx21ads.h
@@ -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__ */
diff --git a/arch/arm/plat-mxc/include/mach/debug-macro.S b/arch/arm/plat-mxc/include/mach/debug-macro.S
index 4e7c8d2ad029..cc7e89d42874 100644
--- a/arch/arm/plat-mxc/include/mach/debug-macro.S
+++ b/arch/arm/plat-mxc/include/mach/debug-macro.S
@@ -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