Add support for the i.MX28 EVK

This patch was originally put together in January 2011 by Roshni.

1 files changed, 165 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/serial.h b/arch/arm/mach-mx3/serial.h
new file mode 100644
index 000000000000..a11e228267e6
--- /dev/null
+++ b/arch/arm/mach-mx3/serial.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2004-2010 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 __ARCH_ARM_MACH_MX3_SERIAL_H__
+#define __ARCH_ARM_MACH_MX3_SERIAL_H__
+
+/*!
+ * @file mach-mx3/serial.h
+ *
+ * @ingroup MSL_MX31
+ */
+#include <mach/mxc_uart.h>
+
+/*
+ * UART Chip level Configuration that a user may not have to edit. These
+ * configuration vary depending on how the UART module is integrated with
+ * the ARM core
+ */
+#define MXC_UART_NR 5
+/*!
+ * This option is used to set or clear the RXDMUXSEL bit in control reg 3.
+ * Certain platforms need this bit to be set in order to receive Irda data.
+ */
+#define MXC_UART_IR_RXDMUX      0x0004
+/*!
+ * This option is used to set or clear the RXDMUXSEL bit in control reg 3.
+ * Certain platforms need this bit to be set in order to receive UART data.
+ */
+#define MXC_UART_RXDMUX         0x0004
+
+/* UART 1 configuration */
+/*!
+ * This option allows to choose either an interrupt-driven software controlled
+ * hardware flow control (set this option to 0) or hardware-driven hardware
+ * flow control (set this option to 1).
+ */
+/* UART used as wakeup source */
+#define UART1_HW_FLOW           0
+/*!
+ * This specifies the threshold at which the CTS pin is deasserted by the
+ * RXFIFO. Set this value in Decimal to anything from 0 to 32 for
+ * hardware-driven hardware flow control. Read the HW spec while specifying
+ * this value. When using interrupt-driven software controlled hardware
+ * flow control set this option to -1.
+ */
+#define UART1_UCR4_CTSTL        16
+/*!
+ * This is option to enable (set this option to 1) or disable DMA data transfer
+ */
+#define UART1_DMA_ENABLE        0
+/*!
+ * Specify the size of the DMA receive buffer. The minimum buffer size is 512
+ * bytes. The buffer size should be a multiple of 256.
+ */
+#define UART1_DMA_RXBUFSIZE     1024
+/*!
+ * Specify the MXC UART's Receive Trigger Level. This controls the threshold at
+ * which a maskable interrupt is generated by the RxFIFO. Set this value in
+ * Decimal to anything from 0 to 32. Read the HW spec while specifying this
+ * value.
+ */
+#define UART1_UFCR_RXTL         16
+/*!
+ * Specify the MXC UART's Transmit Trigger Level. This controls the threshold at
+ * which a maskable interrupt is generated by the TxFIFO. Set this value in
+ * Decimal to anything from 0 to 32. Read the HW spec while specifying this
+ * value.
+ */
+#define UART1_UFCR_TXTL         16
+/* UART 2 configuration */
+#define UART2_HW_FLOW           0
+#define UART2_UCR4_CTSTL        -1
+#define UART2_DMA_ENABLE        0
+#define UART2_DMA_RXBUFSIZE     512
+#define UART2_UFCR_RXTL         16
+#define UART2_UFCR_TXTL         16
+/* UART 3 configuration */
+#define UART3_HW_FLOW           1
+#define UART3_UCR4_CTSTL        16
+#define UART3_DMA_ENABLE        1
+#define UART3_DMA_RXBUFSIZE     1024
+#define UART3_UFCR_RXTL         16
+#define UART3_UFCR_TXTL         16
+/* UART 4 configuration */
+#define UART4_HW_FLOW           1
+#define UART4_UCR4_CTSTL        16
+#define UART4_DMA_ENABLE        0
+#define UART4_DMA_RXBUFSIZE     512
+#define UART4_UFCR_RXTL         16
+#define UART4_UFCR_TXTL         16
+/* UART 5 configuration */
+#define UART5_HW_FLOW           1
+#define UART5_UCR4_CTSTL        16
+#define UART5_DMA_ENABLE        0
+#define UART5_DMA_RXBUFSIZE     512
+#define UART5_UFCR_RXTL         16
+#define UART5_UFCR_TXTL         16
+/*
+ * UART Chip level Configuration that a user may not have to edit. These
+ * configuration vary depending on how the UART module is integrated with
+ * the ARM core
+ */
+/*
+ * Is the MUXED interrupt output sent to the ARM core
+ */
+#define INTS_NOTMUXED           0
+#define INTS_MUXED              1
+/* UART 1 configuration */
+/*!
+ * This define specifies whether the muxed ANDed interrupt line or the
+ * individual interrupts from the UART port is integrated with the ARM core.
+ * There exists a define like this for each UART port. Valid values that can
+ * be used are \b INTS_NOTMUXED or \b INTS_MUXED.
+ */
+#define UART1_MUX_INTS          INTS_MUXED
+/*!
+ * This define specifies the transmitter interrupt number or the interrupt
+ * number of the ANDed interrupt in case the interrupts are muxed. There exists
+ * a define like this for each UART port.
+ */
+#define UART1_INT1              MXC_INT_UART1
+/*!
+ * This define specifies the receiver interrupt number. If the interrupts of
+ * the UART are muxed, then we specify here a dummy value -1. There exists a
+ * define like this for each UART port.
+ */
+#define UART1_INT2              -1
+/*!
+ * This specifies the master interrupt number. If the interrupts of the UART
+ * are muxed, then we specify here a dummy value of -1. There exists a define
+ * like this for each UART port.
+ */
+#define UART1_INT3              -1
+/* UART 2 configuration */
+#define UART2_MUX_INTS          INTS_MUXED
+#define UART2_INT1              MXC_INT_UART2
+#define UART2_INT2              -1
+#define UART2_INT3              -1
+/* UART 3 configuration */
+#define UART3_MUX_INTS          INTS_MUXED
+#define UART3_INT1              MXC_INT_UART3
+#define UART3_INT2              -1
+#define UART3_INT3              -1
+/* UART 4 configuration */
+#define UART4_MUX_INTS          INTS_MUXED
+#define UART4_INT1              MXC_INT_UART4
+#define UART4_INT2              -1
+#define UART4_INT3              -1
+/* UART 5 configuration */
+#define UART5_MUX_INTS          INTS_MUXED
+#define UART5_INT1              MXC_INT_UART5
+#define UART5_INT2              -1
+#define UART5_INT3              -1
+
+#endif				/* __ARCH_ARM_MACH_MX3_SERIAL_H__ */