[PATCHv2 07/11] mxc: Add support for the Babbage board

[Amit Kucheria]

Babbage is a reference board from Freescale for their i.MX51 SoC.

Boot tested on a Babbage2.5 board

Signed-off-by: Amit Kucheria <amit.kucheria at canonical.com>
---
 arch/arm/mach-mx5/Kconfig               |    6 ++
 arch/arm/mach-mx5/Makefile              |    2 +
 arch/arm/mach-mx5/board-mx51_babbage.c  |   99 +++++++++++++++++++++++++++++++
 arch/arm/plat-mxc/include/mach/common.h |    1 +
 4 files changed, 108 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-mx5/board-mx51_babbage.c

diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index ccd96fd..80a749c 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -8,4 +8,10 @@ config ARCH_MX51
 
 comment "MX5 platforms:"
 
+config MACH_MX51_BABBAGE
+	bool "Support MX51 BABBAGE platforms"
+	help
+	  Include support for MX51 Babbage platform. This includes specific
+	  configurations for the board and its peripherals.
+
 endif
diff --git a/arch/arm/mach-mx5/Makefile b/arch/arm/mach-mx5/Makefile
index d74ce4f..e4cf91f 100644
--- a/arch/arm/mach-mx5/Makefile
+++ b/arch/arm/mach-mx5/Makefile
@@ -5,3 +5,5 @@
 # Object file lists.
 obj-y   := cpu.o mm.o clock.o devices.o
 
+obj-$(CONFIG_MACH_MX51_BABBAGE) += board-mx51_babbage.o
+
diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
new file mode 100644
index 0000000..6cd0e14
--- /dev/null
+++ b/arch/arm/mach-mx5/board-mx51_babbage.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (C) 2009-2010 Amit Kucheria <amit.kucheria at canonical.com>
+ *
+ * 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
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux-mx51.h>
+
+#include <asm/irq.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "crm_regs.h"
+#include "devices.h"
+
+static struct platform_device *devices[] __initdata = {
+	&mxc_fec_device,
+};
+
+static struct pad_desc mx51babbage_pads[] = {
+	/* UART1 */
+	MX51_BABBAGE_PAD_UART1_RXD__UART1_RXD,
+	MX51_BABBAGE_PAD_UART1_TXD__UART1_TXD,
+	MX51_BABBAGE_PAD_UART1_RTS__UART1_RTS,
+	MX51_BABBAGE_PAD_UART1_CTS__UART1_CTS,
+
+	/* UART2 */
+	MX51_BABBAGE_PAD_UART2_RXD__UART2_RXD,
+	MX51_BABBAGE_PAD_UART2_TXD__UART2_TXD,
+
+	/* UART3 */
+	MX51_BABBAGE_PAD_EIM_D25__UART3_RXD,
+	MX51_BABBAGE_PAD_EIM_D26__UART3_TXD,
+	MX51_BABBAGE_PAD_EIM_D27__UART3_RTS,
+	MX51_BABBAGE_PAD_EIM_D24__UART3_CTS,
+};
+
+/* Serial ports */
+#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
+static struct imxuart_platform_data uart_pdata = {
+	.flags = IMXUART_HAVE_RTSCTS,
+};
+
+static inline void mxc_init_imx_uart(void)
+{
+	mxc_register_device(&mxc_uart_device0, &uart_pdata);
+	mxc_register_device(&mxc_uart_device1, &uart_pdata);
+	mxc_register_device(&mxc_uart_device2, &uart_pdata);
+}
+#else /* !SERIAL_IMX */
+static inline void mxc_init_imx_uart(void)
+{
+}
+#endif /* SERIAL_IMX */
+
+/*
+ * Board specific initialization.
+ */
+static void __init mxc_board_init(void)
+{
+	mxc_iomux_v3_setup_multiple_pads(mx51babbage_pads,
+					ARRAY_SIZE(mx51babbage_pads));
+	mxc_init_imx_uart();
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+static void __init mx51_babbage_timer_init(void)
+{
+	mx51_clocks_init(32768, 24000000, 22579200, 24576000);
+}
+
+static struct sys_timer mxc_timer = {
+	.init	= mx51_babbage_timer_init,
+};
+
+MACHINE_START(MX51_BABBAGE, "Freescale MX51 Babbage Board")
+	/* Maintainer: Amit Kucheria <amit.kucheria at canonical.com> */
+	.phys_io = MX51_AIPS1_BASE_ADDR,
+	.io_pg_offst = ((MX51_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+	.boot_params = PHYS_OFFSET + 0x100,
+	.map_io = mx51_map_io,
+	.init_irq = mx51_init_irq,
+	.init_machine = mxc_board_init,
+	.timer = &mxc_timer,
+MACHINE_END
diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h
index 0a25576..33d4496 100644
--- a/arch/arm/plat-mxc/include/mach/common.h
+++ b/arch/arm/plat-mxc/include/mach/common.h
@@ -21,6 +21,7 @@ extern void mx27_map_io(void);
 extern void mx31_map_io(void);
 extern void mx35_map_io(void);
 extern void mx51_map_io(void);
+extern void mx51_babbage_io_init(void);
 extern void mxc91231_map_io(void);
 extern void mxc_init_irq(void __iomem *);
 extern void tzic_init_irq(void __iomem *);
-- 
1.6.3.3