2 * arch/xtensa/platform/xtavnet/include/platform/hardware.h
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
8 * Copyright (C) 2006 Tensilica Inc.
12 * This file contains the hardware configuration of the XTAVNET boards.
15 #ifndef __XTENSA_XTAVNET_HARDWARE_H
16 #define __XTENSA_XTAVNET_HARDWARE_H
18 /* Memory configuration. */
20 #define PLATFORM_DEFAULT_MEM_START 0x00000000
21 #define PLATFORM_DEFAULT_MEM_SIZE 0x04000000
23 /* Interrupt configuration. */
25 #define PLATFORM_NR_IRQS 10
27 /* Default assignment of LX60 devices to external interrupts. */
29 #ifdef CONFIG_XTENSA_MX
30 #define DUART16552_INTNUM XCHAL_EXTINT3_NUM
31 #define OETH_IRQ XCHAL_EXTINT4_NUM
33 #define DUART16552_INTNUM XCHAL_EXTINT0_NUM
34 #define OETH_IRQ XCHAL_EXTINT1_NUM
38 * Device addresses and parameters.
42 #define DUART16552_PADDR (XCHAL_KIO_PADDR + 0x0D050020)
43 /* LCD instruction and data addresses. */
44 #define LCD_INSTR_ADDR ((char *)IOADDR(0x0D040000))
45 #define LCD_DATA_ADDR ((char *)IOADDR(0x0D040004))
48 #define XTFPGA_FPGAREGS_VADDR IOADDR(0x0D020000)
49 /* Clock frequency in Hz (read-only): */
50 #define XTFPGA_CLKFRQ_VADDR (XTFPGA_FPGAREGS_VADDR + 0x04)
51 /* Setting of 8 DIP switches: */
52 #define DIP_SWITCHES_VADDR (XTFPGA_FPGAREGS_VADDR + 0x0C)
53 /* Software reset (write 0xdead): */
54 #define XTFPGA_SWRST_VADDR (XTFPGA_FPGAREGS_VADDR + 0x10)
56 /* OpenCores Ethernet controller: */
57 /* regs + RX/TX descriptors */
58 #define OETH_REGS_PADDR (XCHAL_KIO_PADDR + 0x0D030000)
59 #define OETH_REGS_SIZE 0x1000
60 #define OETH_SRAMBUFF_PADDR (XCHAL_KIO_PADDR + 0x0D800000)
62 /* 5*rx buffs + 5*tx buffs */
63 #define OETH_SRAMBUFF_SIZE (5 * 0x600 + 5 * 0x600)
65 #endif /* __XTENSA_XTAVNET_HARDWARE_H */