mirror of https://gitee.com/openkylin/linux.git
378 lines
14 KiB
C
378 lines
14 KiB
C
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/*
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* include/asm-arm/arch-ixp2000/ixp2000-regs.h
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*
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* Chipset register definitions for IXP2400/2800 based systems.
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*
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* Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
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*
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* Maintainer: Deepak Saxena <dsaxena@plexity.net>
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*
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* Copyright (C) 2002 Intel Corp.
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* Copyright (C) 2003-2004 MontaVista Software, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef _IXP2000_REGS_H_
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#define _IXP2000_REGS_H_
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/*
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* Static I/O regions.
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*
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* Most of the registers are clumped in 4K regions spread throughout
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* the 0xc0000000 -> 0xc0100000 address range, but we just map in
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* the whole range using a single 1 MB section instead of small
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* 4K pages. This has two advantages for us:
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*
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* 1) We use only one TLB entry for large number of on-chip I/O devices.
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*
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* 2) We can easily set the Section attributes to XCB=101 on the IXP2400
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* as required per erratum #66. We accomplish this by using a
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* new MT_IXP2000_DEVICE memory type with the bits set as required.
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*
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* CAP stands for CSR Access Proxy.
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*
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* If you change the virtual address of this mapping, please propagate
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* the change to arch/arm/kernel/debug.S, which hardcodes the virtual
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* address of the UART located in this region.
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*/
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#define IXP2000_CAP_PHYS_BASE 0xc0000000
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#define IXP2000_CAP_VIRT_BASE 0xfef00000
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#define IXP2000_CAP_SIZE 0x00100000
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/*
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* Addresses for specific on-chip peripherals
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*/
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#define IXP2000_SLOWPORT_CSR_VIRT_BASE 0xfef80000
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#define IXP2000_GLOBAL_REG_VIRT_BASE 0xfef04000
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#define IXP2000_UART_PHYS_BASE 0xc0030000
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#define IXP2000_UART_VIRT_BASE 0xfef30000
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#define IXP2000_TIMER_VIRT_BASE 0xfef20000
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#define IXP2000_GPIO_VIRT_BASE 0Xfef10000
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/*
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* Devices outside of the 0xc0000000 -> 0xc0100000 range. The virtual
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* addresses of the INTCTL and PCI_CSR mappings are hardcoded in
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* entry-macro.S, so if you ever change these please propagate
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* the change.
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*/
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#define IXP2000_INTCTL_PHYS_BASE 0xd6000000
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#define IXP2000_INTCTL_VIRT_BASE 0xfee00000
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#define IXP2000_INTCTL_SIZE 0x00100000
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#define IXP2000_PCI_CREG_PHYS_BASE 0xde000000
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#define IXP2000_PCI_CREG_VIRT_BASE 0xfed00000
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#define IXP2000_PCI_CREG_SIZE 0x00100000
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#define IXP2000_PCI_CSR_PHYS_BASE 0xdf000000
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#define IXP2000_PCI_CSR_VIRT_BASE 0xfec00000
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#define IXP2000_PCI_CSR_SIZE 0x00100000
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#define IXP2000_PCI_IO_PHYS_BASE 0xd8000000
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#define IXP2000_PCI_IO_VIRT_BASE 0xfd000000
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#define IXP2000_PCI_IO_SIZE 0x01000000
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#define IXP2000_PCI_CFG0_PHYS_BASE 0xda000000
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#define IXP2000_PCI_CFG0_VIRT_BASE 0xfc000000
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#define IXP2000_PCI_CFG0_SIZE 0x01000000
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#define IXP2000_PCI_CFG1_PHYS_BASE 0xdb000000
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#define IXP2000_PCI_CFG1_VIRT_BASE 0xfb000000
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#define IXP2000_PCI_CFG1_SIZE 0x01000000
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/*
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* Timers
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*/
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#define IXP2000_TIMER_REG(x) ((volatile unsigned long*)(IXP2000_TIMER_VIRT_BASE | (x)))
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/* Timer control */
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#define IXP2000_T1_CTL IXP2000_TIMER_REG(0x00)
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#define IXP2000_T2_CTL IXP2000_TIMER_REG(0x04)
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#define IXP2000_T3_CTL IXP2000_TIMER_REG(0x08)
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#define IXP2000_T4_CTL IXP2000_TIMER_REG(0x0c)
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/* Store initial value */
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#define IXP2000_T1_CLD IXP2000_TIMER_REG(0x10)
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#define IXP2000_T2_CLD IXP2000_TIMER_REG(0x14)
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#define IXP2000_T3_CLD IXP2000_TIMER_REG(0x18)
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#define IXP2000_T4_CLD IXP2000_TIMER_REG(0x1c)
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/* Read current value */
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#define IXP2000_T1_CSR IXP2000_TIMER_REG(0x20)
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#define IXP2000_T2_CSR IXP2000_TIMER_REG(0x24)
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#define IXP2000_T3_CSR IXP2000_TIMER_REG(0x28)
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#define IXP2000_T4_CSR IXP2000_TIMER_REG(0x2c)
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/* Clear associated timer interrupt */
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#define IXP2000_T1_CLR IXP2000_TIMER_REG(0x30)
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#define IXP2000_T2_CLR IXP2000_TIMER_REG(0x34)
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#define IXP2000_T3_CLR IXP2000_TIMER_REG(0x38)
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#define IXP2000_T4_CLR IXP2000_TIMER_REG(0x3c)
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/* Timer watchdog enable for T4 */
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#define IXP2000_TWDE IXP2000_TIMER_REG(0x40)
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#define WDT_ENABLE 0x00000001
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#define TIMER_DIVIDER_256 0x00000008
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#define TIMER_ENABLE 0x00000080
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#define IRQ_MASK_TIMER1 (1 << 4)
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/*
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* Interrupt controller registers
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*/
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#define IXP2000_INTCTL_REG(x) (volatile unsigned long*)(IXP2000_INTCTL_VIRT_BASE | (x))
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#define IXP2000_IRQ_STATUS IXP2000_INTCTL_REG(0x08)
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#define IXP2000_IRQ_ENABLE IXP2000_INTCTL_REG(0x10)
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#define IXP2000_IRQ_ENABLE_SET IXP2000_INTCTL_REG(0x10)
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#define IXP2000_IRQ_ENABLE_CLR IXP2000_INTCTL_REG(0x18)
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#define IXP2000_FIQ_ENABLE_CLR IXP2000_INTCTL_REG(0x14)
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#define IXP2000_IRQ_ERR_STATUS IXP2000_INTCTL_REG(0x24)
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#define IXP2000_IRQ_ERR_ENABLE_SET IXP2000_INTCTL_REG(0x2c)
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#define IXP2000_FIQ_ERR_ENABLE_CLR IXP2000_INTCTL_REG(0x30)
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#define IXP2000_IRQ_ERR_ENABLE_CLR IXP2000_INTCTL_REG(0x34)
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#define IXP2000_IRQ_THD_RAW_STATUS_A_0 IXP2000_INTCTL_REG(0x60)
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#define IXP2000_IRQ_THD_RAW_STATUS_A_1 IXP2000_INTCTL_REG(0x64)
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#define IXP2000_IRQ_THD_RAW_STATUS_A_2 IXP2000_INTCTL_REG(0x68)
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#define IXP2000_IRQ_THD_RAW_STATUS_A_3 IXP2000_INTCTL_REG(0x6c)
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#define IXP2000_IRQ_THD_RAW_STATUS_B_0 IXP2000_INTCTL_REG(0x80)
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#define IXP2000_IRQ_THD_RAW_STATUS_B_1 IXP2000_INTCTL_REG(0x84)
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#define IXP2000_IRQ_THD_RAW_STATUS_B_2 IXP2000_INTCTL_REG(0x88)
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#define IXP2000_IRQ_THD_RAW_STATUS_B_3 IXP2000_INTCTL_REG(0x8c)
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#define IXP2000_IRQ_THD_ENABLE_SET_A_0 IXP2000_INTCTL_REG(0x160)
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#define IXP2000_IRQ_THD_ENABLE_SET_A_1 IXP2000_INTCTL_REG(0x164)
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#define IXP2000_IRQ_THD_ENABLE_SET_A_2 IXP2000_INTCTL_REG(0x168)
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#define IXP2000_IRQ_THD_ENABLE_SET_A_3 IXP2000_INTCTL_REG(0x16c)
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#define IXP2000_IRQ_THD_ENABLE_SET_B_0 IXP2000_INTCTL_REG(0x180)
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#define IXP2000_IRQ_THD_ENABLE_SET_B_1 IXP2000_INTCTL_REG(0x184)
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#define IXP2000_IRQ_THD_ENABLE_SET_B_2 IXP2000_INTCTL_REG(0x188)
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#define IXP2000_IRQ_THD_ENABLE_SET_B_3 IXP2000_INTCTL_REG(0x18c)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_0 IXP2000_INTCTL_REG(0x1e0)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_1 IXP2000_INTCTL_REG(0x1e4)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_2 IXP2000_INTCTL_REG(0x1e8)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_3 IXP2000_INTCTL_REG(0x1ec)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_0 IXP2000_INTCTL_REG(0x200)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_1 IXP2000_INTCTL_REG(0x204)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_2 IXP2000_INTCTL_REG(0x208)
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#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_3 IXP2000_INTCTL_REG(0x20c)
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/*
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* Mask of valid IRQs in the 32-bit IRQ register. We use
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* this to mark certain IRQs as being invalid.
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*/
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#define IXP2000_VALID_IRQ_MASK 0x0f0fffff
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/*
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* PCI config register access from core
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*/
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#define IXP2000_PCI_CREG(x) (volatile unsigned long*)(IXP2000_PCI_CREG_VIRT_BASE | (x))
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#define IXP2000_PCI_CMDSTAT IXP2000_PCI_CREG(0x04)
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#define IXP2000_PCI_CSR_BAR IXP2000_PCI_CREG(0x10)
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#define IXP2000_PCI_SRAM_BAR IXP2000_PCI_CREG(0x14)
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#define IXP2000_PCI_SDRAM_BAR IXP2000_PCI_CREG(0x18)
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/*
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* PCI CSRs
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*/
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#define IXP2000_PCI_CSR(x) (volatile unsigned long*)(IXP2000_PCI_CSR_VIRT_BASE | (x))
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/*
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* PCI outbound interrupts
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*/
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#define IXP2000_PCI_OUT_INT_STATUS IXP2000_PCI_CSR(0x30)
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#define IXP2000_PCI_OUT_INT_MASK IXP2000_PCI_CSR(0x34)
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/*
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* PCI communications
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*/
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#define IXP2000_PCI_MAILBOX0 IXP2000_PCI_CSR(0x50)
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#define IXP2000_PCI_MAILBOX1 IXP2000_PCI_CSR(0x54)
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#define IXP2000_PCI_MAILBOX2 IXP2000_PCI_CSR(0x58)
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#define IXP2000_PCI_MAILBOX3 IXP2000_PCI_CSR(0x5C)
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#define IXP2000_XSCALE_DOORBELL IXP2000_PCI_CSR(0x60)
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#define IXP2000_XSCALE_DOORBELL_SETUP IXP2000_PCI_CSR(0x64)
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#define IXP2000_PCI_DOORBELL IXP2000_PCI_CSR(0x70)
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#define IXP2000_PCI_DOORBELL_SETUP IXP2000_PCI_CSR(0x74)
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/*
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* DMA engines
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*/
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#define IXP2000_PCI_CH1_BYTE_CNT IXP2000_PCI_CSR(0x80)
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#define IXP2000_PCI_CH1_ADDR IXP2000_PCI_CSR(0x84)
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#define IXP2000_PCI_CH1_DRAM_ADDR IXP2000_PCI_CSR(0x88)
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#define IXP2000_PCI_CH1_DESC_PTR IXP2000_PCI_CSR(0x8C)
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#define IXP2000_PCI_CH1_CNTRL IXP2000_PCI_CSR(0x90)
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#define IXP2000_PCI_CH1_ME_PARAM IXP2000_PCI_CSR(0x94)
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#define IXP2000_PCI_CH2_BYTE_CNT IXP2000_PCI_CSR(0xA0)
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#define IXP2000_PCI_CH2_ADDR IXP2000_PCI_CSR(0xA4)
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#define IXP2000_PCI_CH2_DRAM_ADDR IXP2000_PCI_CSR(0xA8)
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#define IXP2000_PCI_CH2_DESC_PTR IXP2000_PCI_CSR(0xAC)
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#define IXP2000_PCI_CH2_CNTRL IXP2000_PCI_CSR(0xB0)
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#define IXP2000_PCI_CH2_ME_PARAM IXP2000_PCI_CSR(0xB4)
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#define IXP2000_PCI_CH3_BYTE_CNT IXP2000_PCI_CSR(0xC0)
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#define IXP2000_PCI_CH3_ADDR IXP2000_PCI_CSR(0xC4)
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#define IXP2000_PCI_CH3_DRAM_ADDR IXP2000_PCI_CSR(0xC8)
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#define IXP2000_PCI_CH3_DESC_PTR IXP2000_PCI_CSR(0xCC)
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#define IXP2000_PCI_CH3_CNTRL IXP2000_PCI_CSR(0xD0)
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#define IXP2000_PCI_CH3_ME_PARAM IXP2000_PCI_CSR(0xD4)
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#define IXP2000_DMA_INF_MODE IXP2000_PCI_CSR(0xE0)
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/*
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* Size masks for BARs
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*/
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#define IXP2000_PCI_SRAM_BASE_ADDR_MASK IXP2000_PCI_CSR(0xFC)
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#define IXP2000_PCI_DRAM_BASE_ADDR_MASK IXP2000_PCI_CSR(0x100)
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/*
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* Control and uEngine related
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*/
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#define IXP2000_PCI_CONTROL IXP2000_PCI_CSR(0x13C)
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#define IXP2000_PCI_ADDR_EXT IXP2000_PCI_CSR(0x140)
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#define IXP2000_PCI_ME_PUSH_STATUS IXP2000_PCI_CSR(0x148)
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#define IXP2000_PCI_ME_PUSH_EN IXP2000_PCI_CSR(0x14C)
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#define IXP2000_PCI_ERR_STATUS IXP2000_PCI_CSR(0x150)
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#define IXP2000_PCI_ERR_ENABLE IXP2000_PCI_CSR(0x154)
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/*
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* Inbound PCI interrupt control
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*/
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#define IXP2000_PCI_XSCALE_INT_STATUS IXP2000_PCI_CSR(0x158)
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#define IXP2000_PCI_XSCALE_INT_ENABLE IXP2000_PCI_CSR(0x15C)
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#define IXP2000_PCICNTL_PNR (1<<17) /* PCI not Reset bit of PCI_CONTROL */
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#define IXP2000_PCICNTL_PCF (1<<28) /* PCI Centrolfunction bit */
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#define IXP2000_XSCALE_INT (1<<1) /* Interrupt from XScale to PCI */
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/* These are from the IRQ register in the PCI ISR register */
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#define PCI_CONTROL_BE_DEO (1 << 22) /* Big Endian Data Enable Out */
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#define PCI_CONTROL_BE_DEI (1 << 21) /* Big Endian Data Enable In */
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#define PCI_CONTROL_BE_BEO (1 << 20) /* Big Endian Byte Enable Out */
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#define PCI_CONTROL_BE_BEI (1 << 19) /* Big Endian Byte Enable In */
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#define PCI_CONTROL_PNR (1 << 17) /* PCI Not Reset bit */
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#define IXP2000_PCI_RST_REL (1 << 2)
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#define CFG_RST_DIR (*IXP2000_PCI_CONTROL & IXP2000_PCICNTL_PCF)
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#define CFG_PCI_BOOT_HOST (1 << 2)
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#define CFG_BOOT_PROM (1 << 1)
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/*
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* SlowPort CSRs
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*
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* The slowport is used to access things like flash, SONET framer control
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* ports, slave microprocessors, CPLDs, and others of chip memory mapped
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* peripherals.
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*/
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#define SLOWPORT_CSR(x) (volatile unsigned long*)(IXP2000_SLOWPORT_CSR_VIRT_BASE | (x))
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#define IXP2000_SLOWPORT_CCR SLOWPORT_CSR(0x00)
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#define IXP2000_SLOWPORT_WTC1 SLOWPORT_CSR(0x04)
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#define IXP2000_SLOWPORT_WTC2 SLOWPORT_CSR(0x08)
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#define IXP2000_SLOWPORT_RTC1 SLOWPORT_CSR(0x0c)
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#define IXP2000_SLOWPORT_RTC2 SLOWPORT_CSR(0x10)
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#define IXP2000_SLOWPORT_FSR SLOWPORT_CSR(0x14)
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#define IXP2000_SLOWPORT_PCR SLOWPORT_CSR(0x18)
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#define IXP2000_SLOWPORT_ADC SLOWPORT_CSR(0x1C)
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#define IXP2000_SLOWPORT_FAC SLOWPORT_CSR(0x20)
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#define IXP2000_SLOWPORT_FRM SLOWPORT_CSR(0x24)
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#define IXP2000_SLOWPORT_FIN SLOWPORT_CSR(0x28)
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|
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||
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/*
|
||
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|
* CCR values.
|
||
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* The CCR configures the clock division for the slowport interface.
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||
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*/
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#define SLOWPORT_CCR_DIV_1 0x00
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#define SLOWPORT_CCR_DIV_2 0x01
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#define SLOWPORT_CCR_DIV_4 0x02
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#define SLOWPORT_CCR_DIV_6 0x03
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#define SLOWPORT_CCR_DIV_8 0x04
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#define SLOWPORT_CCR_DIV_10 0x05
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#define SLOWPORT_CCR_DIV_12 0x06
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#define SLOWPORT_CCR_DIV_14 0x07
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#define SLOWPORT_CCR_DIV_16 0x08
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#define SLOWPORT_CCR_DIV_18 0x09
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#define SLOWPORT_CCR_DIV_20 0x0a
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#define SLOWPORT_CCR_DIV_22 0x0b
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#define SLOWPORT_CCR_DIV_24 0x0c
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#define SLOWPORT_CCR_DIV_26 0x0d
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#define SLOWPORT_CCR_DIV_28 0x0e
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#define SLOWPORT_CCR_DIV_30 0x0f
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||
|
|
|
||
|
|
/*
|
||
|
|
* PCR values. PCR configure the mode of the interface.
|
||
|
|
*/
|
||
|
|
#define SLOWPORT_MODE_FLASH 0x00
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||
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|
#define SLOWPORT_MODE_LUCENT 0x01
|
||
|
|
#define SLOWPORT_MODE_PMC_SIERRA 0x02
|
||
|
|
#define SLOWPORT_MODE_INTEL_UP 0x03
|
||
|
|
#define SLOWPORT_MODE_MOTOROLA_UP 0x04
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ADC values. Defines data and address bus widths.
|
||
|
|
*/
|
||
|
|
#define SLOWPORT_ADDR_WIDTH_8 0x00
|
||
|
|
#define SLOWPORT_ADDR_WIDTH_16 0x01
|
||
|
|
#define SLOWPORT_ADDR_WIDTH_24 0x02
|
||
|
|
#define SLOWPORT_ADDR_WIDTH_32 0x03
|
||
|
|
#define SLOWPORT_DATA_WIDTH_8 0x00
|
||
|
|
#define SLOWPORT_DATA_WIDTH_16 0x10
|
||
|
|
#define SLOWPORT_DATA_WIDTH_24 0x20
|
||
|
|
#define SLOWPORT_DATA_WIDTH_32 0x30
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Masks and shifts for various fields in the WTC and RTC registers.
|
||
|
|
*/
|
||
|
|
#define SLOWPORT_WRTC_MASK_HD 0x0003
|
||
|
|
#define SLOWPORT_WRTC_MASK_SU 0x003c
|
||
|
|
#define SLOWPORT_WRTC_MASK_PW 0x03c0
|
||
|
|
|
||
|
|
#define SLOWPORT_WRTC_SHIFT_HD 0x00
|
||
|
|
#define SLOWPORT_WRTC_SHIFT_SU 0x02
|
||
|
|
#define SLOWPORT_WRTC_SHFIT_PW 0x06
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* GPIO registers & GPIO interface.
|
||
|
|
*/
|
||
|
|
#define IXP2000_GPIO_REG(x) ((volatile unsigned long*)(IXP2000_GPIO_VIRT_BASE+(x)))
|
||
|
|
#define IXP2000_GPIO_PLR IXP2000_GPIO_REG(0x00)
|
||
|
|
#define IXP2000_GPIO_PDPR IXP2000_GPIO_REG(0x04)
|
||
|
|
#define IXP2000_GPIO_PDSR IXP2000_GPIO_REG(0x08)
|
||
|
|
#define IXP2000_GPIO_PDCR IXP2000_GPIO_REG(0x0c)
|
||
|
|
#define IXP2000_GPIO_POPR IXP2000_GPIO_REG(0x10)
|
||
|
|
#define IXP2000_GPIO_POSR IXP2000_GPIO_REG(0x14)
|
||
|
|
#define IXP2000_GPIO_POCR IXP2000_GPIO_REG(0x18)
|
||
|
|
#define IXP2000_GPIO_REDR IXP2000_GPIO_REG(0x1c)
|
||
|
|
#define IXP2000_GPIO_FEDR IXP2000_GPIO_REG(0x20)
|
||
|
|
#define IXP2000_GPIO_EDSR IXP2000_GPIO_REG(0x24)
|
||
|
|
#define IXP2000_GPIO_LSHR IXP2000_GPIO_REG(0x28)
|
||
|
|
#define IXP2000_GPIO_LSLR IXP2000_GPIO_REG(0x2c)
|
||
|
|
#define IXP2000_GPIO_LDSR IXP2000_GPIO_REG(0x30)
|
||
|
|
#define IXP2000_GPIO_INER IXP2000_GPIO_REG(0x34)
|
||
|
|
#define IXP2000_GPIO_INSR IXP2000_GPIO_REG(0x38)
|
||
|
|
#define IXP2000_GPIO_INCR IXP2000_GPIO_REG(0x3c)
|
||
|
|
#define IXP2000_GPIO_INST IXP2000_GPIO_REG(0x40)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* "Global" registers...whatever that's supposed to mean.
|
||
|
|
*/
|
||
|
|
#define GLOBAL_REG_BASE (IXP2000_GLOBAL_REG_VIRT_BASE + 0x0a00)
|
||
|
|
#define GLOBAL_REG(x) (volatile unsigned long*)(GLOBAL_REG_BASE | (x))
|
||
|
|
|
||
|
|
#define IXP2000_PROD_ID GLOBAL_REG(0x00)
|
||
|
|
|
||
|
|
#define IXP2000_MAJ_PROD_TYPE_MASK 0x001F0000
|
||
|
|
#define IXP2000_MAJ_PROD_TYPE_IXP2000 0x00000000
|
||
|
|
#define IXP2000_MIN_PROD_TYPE_MASK 0x0000FF00
|
||
|
|
#define IXP2000_MIN_PROD_TYPE_IXP2400 0x00000200
|
||
|
|
#define IXP2000_MIN_PROD_TYPE_IXP2850 0x00000100
|
||
|
|
#define IXP2000_MIN_PROD_TYPE_IXP2800 0x00000000
|
||
|
|
#define IXP2000_MAJ_REV_MASK 0x000000F0
|
||
|
|
#define IXP2000_MIN_REV_MASK 0x0000000F
|
||
|
|
#define IXP2000_PROD_ID_MASK 0xFFFFFFFF
|
||
|
|
|
||
|
|
#define IXP2000_MISC_CONTROL GLOBAL_REG(0x04)
|
||
|
|
#define IXP2000_MSF_CLK_CNTRL GLOBAL_REG(0x08)
|
||
|
|
#define IXP2000_RESET0 GLOBAL_REG(0x0c)
|
||
|
|
#define IXP2000_RESET1 GLOBAL_REG(0x10)
|
||
|
|
#define IXP2000_CCR GLOBAL_REG(0x14)
|
||
|
|
#define IXP2000_STRAP_OPTIONS GLOBAL_REG(0x18)
|
||
|
|
|
||
|
|
#define RSTALL (1 << 16)
|
||
|
|
#define WDT_RESET_ENABLE 0x01000000
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* _IXP2000_H_ */
|