Add basic support for MX31PDK board.

Add basic support to the MX31PDK development board, also known
as MX31 3DS or MX31 3-stack board (http://www.freescale.com/imx31pdk).

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: sascha Hauer <s.hauer@pengutronix.de>

5 files changed, 145 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig
index db9431dee1b..dc96ddedc2f 100644
--- a/arch/arm/mach-mx3/Kconfig
+++ b/arch/arm/mach-mx3/Kconfig
@@ -21,5 +21,12 @@ config MACH_MX31LITE
           Include support for MX31 LITEKIT platform. This includes specific
           configurations for the board and its peripherals.
 
+config MACH_MX31_3DS
+        bool "Support MX31PDK (3DS)"
+        default n
+        help
+          Include support for MX31PDK (3DS) platform. This includes specific
+          configurations for the board and its peripherals.
+
 endmenu
 
diff --git a/arch/arm/mach-mx3/Makefile b/arch/arm/mach-mx3/Makefile
index 8b21abb71fb..10a0886b32c 100644
--- a/arch/arm/mach-mx3/Makefile
+++ b/arch/arm/mach-mx3/Makefile
@@ -8,3 +8,4 @@ obj-y			:= mm.o clock.o devices.o iomux.o
 obj-$(CONFIG_MACH_MX31ADS)      += mx31ads.o
 obj-$(CONFIG_MACH_MX31LITE)     += mx31lite.o
 obj-$(CONFIG_MACH_PCM037)       += pcm037.o
+obj-$(CONFIG_MACH_MX31_3DS)     += mx31pdk.o
diff --git a/arch/arm/mach-mx3/mx31pdk.c b/arch/arm/mach-mx3/mx31pdk.c
new file mode 100644
index 00000000000..d464d068a4a
--- /dev/null
+++ b/arch/arm/mach-mx3/mx31pdk.c
@@ -0,0 +1,115 @@
+/*
+ *  Copyright 2008 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/types.h>
+#include <linux/init.h>
+#include <linux/clk.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/board-mx31pdk.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux-mx3.h>
+#include "devices.h"
+
+/*!
+ * @file mx31pdk.c
+ *
+ * @brief This file contains the board-specific initialization routines.
+ *
+ * @ingroup System
+ */
+
+static struct imxuart_platform_data uart_pdata = {
+        .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static inline void mxc_init_imx_uart(void)
+{
+        mxc_iomux_mode(MX31_PIN_CTS1__CTS1);
+        mxc_iomux_mode(MX31_PIN_RTS1__RTS1);
+        mxc_iomux_mode(MX31_PIN_TXD1__TXD1);
+        mxc_iomux_mode(MX31_PIN_RXD1__RXD1);
+
+        mxc_register_device(&mxc_uart_device0, &uart_pdata);
+}
+
+/*!
+ * This structure defines static mappings for the i.MX31PDK board.
+ */
+static struct map_desc mx31pdk_io_desc[] __initdata = {
+        {
+                .virtual        = AIPS1_BASE_ADDR_VIRT,
+                .pfn            = __phys_to_pfn(AIPS1_BASE_ADDR),
+                .length         = AIPS1_SIZE,
+                .type           = MT_DEVICE_NONSHARED
+        }, {
+                .virtual        = AIPS2_BASE_ADDR_VIRT,
+                .pfn            = __phys_to_pfn(AIPS2_BASE_ADDR),
+                .length         = AIPS2_SIZE,
+                .type           = MT_DEVICE_NONSHARED
+        },
+};
+
+/*!
+ * Set up static virtual mappings.
+ */
+static void __init mx31pdk_map_io(void)
+{
+        mxc_map_io();
+        iotable_init(mx31pdk_io_desc, ARRAY_SIZE(mx31pdk_io_desc));
+}
+
+/*!
+ * Board specific initialization.
+ */
+static void __init mxc_board_init(void)
+{
+        mxc_init_imx_uart();
+}
+
+static void __init mx31pdk_timer_init(void)
+{
+        mxc_clocks_init(26000000);
+        mxc_timer_init("ipg_clk.0");
+}
+
+static struct sys_timer mx31pdk_timer = {
+        .init   = mx31pdk_timer_init,
+};
+
+/*
+ * The following uses standard kernel macros defined in arch.h in order to
+ * initialize __mach_desc_MX31PDK data structure.
+ */
+MACHINE_START(MX31_3DS, "Freescale MX31PDK (3DS)")
+        /* Maintainer: Freescale Semiconductor, Inc. */
+        .phys_io        = AIPS1_BASE_ADDR,
+        .io_pg_offst    = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+        .boot_params    = PHYS_OFFSET + 0x100,
+        .map_io         = mx31pdk_map_io,
+        .init_irq       = mxc_init_irq,
+        .init_machine   = mxc_board_init,
+        .timer          = &mx31pdk_timer,
+MACHINE_END
diff --git a/arch/arm/plat-mxc/include/mach/board-mx31pdk.h b/arch/arm/plat-mxc/include/mach/board-mx31pdk.h
new file mode 100644
index 00000000000..2b6b316d0f5
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/board-mx31pdk.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2008 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARCH_MXC_BOARD_MX31PDK_H__
+#define __ASM_ARCH_MXC_BOARD_MX31PDK_H__
+
+/* mandatory for CONFIG_LL_DEBUG */
+
+#define MXC_LL_UART_PADDR       UART1_BASE_ADDR
+#define MXC_LL_UART_VADDR       AIPS1_IO_ADDRESS(UART1_BASE_ADDR)
+
+#endif /* __ASM_ARCH_MXC_BOARD_MX31PDK_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/debug-macro.S b/arch/arm/plat-mxc/include/mach/debug-macro.S
index b9907bebba3..602768b427e 100644
--- a/arch/arm/plat-mxc/include/mach/debug-macro.S
+++ b/arch/arm/plat-mxc/include/mach/debug-macro.S
@@ -28,6 +28,9 @@
 #ifdef CONFIG_MACH_PCM038
 #include <mach/board-pcm038.h>
 #endif
+#ifdef CONFIG_MACH_MX31_3DS
+#include <mach/board-mx31pdk.h>
+#endif
                 .macro  addruart,rx
                 mrc     p15, 0, \rx, c1, c0
                 tst     \rx, #1                 @ MMU enabled?