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1/*
2 * arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h
3 *
4 * Chipset register definitions for IXP2400/2800 based systems.
5 *
6 * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
7 *
8 * Maintainer: Deepak Saxena <dsaxena@plexity.net>
9 *
10 * Copyright (C) 2002 Intel Corp.
11 * Copyright (C) 2003-2004 MontaVista Software, Inc.
12 *
13 *  This program is free software; you can redistribute  it and/or modify it
14 *  under  the terms of  the GNU General  Public License as published by the
15 *  Free Software Foundation;  either version 2 of the  License, or (at your
16 *  option) any later version.
17 */
18#ifndef _IXP2000_REGS_H_
19#define _IXP2000_REGS_H_
20
21/*
22 * IXP2000 linux memory map:
23 *
24 * virt		phys		size
25 * fb000000	db000000	16M		PCI CFG1
26 * fc000000	da000000	16M		PCI CFG0
27 * fd000000	d8000000	16M		PCI I/O
28 * fe[0-7]00000			8M		per-platform mappings
29 * fe900000	80000000	1M		SRAM #0 (first MB)
30 * fea00000	cb400000	1M		SCRATCH ring get/put
31 * feb00000	c8000000	1M		MSF
32 * fec00000	df000000	1M		PCI CSRs
33 * fed00000	de000000	1M		PCI CREG
34 * fee00000	d6000000	1M		INTCTL
35 * fef00000	c0000000	1M		CAP
36 */
37
38/*
39 * Static I/O regions.
40 *
41 * Most of the registers are clumped in 4K regions spread throughout
42 * the 0xc0000000 -> 0xc0100000 address range, but we just map in
43 * the whole range using a single 1 MB section instead of small
44 * 4K pages.
45 *
46 * CAP stands for CSR Access Proxy.
47 *
48 * If you change the virtual address of this mapping, please propagate
49 * the change to arch/arm/kernel/debug.S, which hardcodes the virtual
50 * address of the UART located in this region.
51 */
52
53#define	IXP2000_CAP_PHYS_BASE		0xc0000000
54#define	IXP2000_CAP_VIRT_BASE		0xfef00000
55#define	IXP2000_CAP_SIZE		0x00100000
56
57/*
58 * Addresses for specific on-chip peripherals.
59 */
60#define	IXP2000_SLOWPORT_CSR_VIRT_BASE	0xfef80000
61#define	IXP2000_GLOBAL_REG_VIRT_BASE	0xfef04000
62#define	IXP2000_UART_PHYS_BASE		0xc0030000
63#define	IXP2000_UART_VIRT_BASE		0xfef30000
64#define	IXP2000_TIMER_VIRT_BASE		0xfef20000
65#define	IXP2000_UENGINE_CSR_VIRT_BASE	0xfef18000
66#define	IXP2000_GPIO_VIRT_BASE		0xfef10000
67
68/*
69 * Devices outside of the 0xc0000000 -> 0xc0100000 range.  The virtual
70 * addresses of the INTCTL and PCI_CSR mappings are hardcoded in
71 * entry-macro.S, so if you ever change these please propagate
72 * the change.
73 */
74#define IXP2000_INTCTL_PHYS_BASE	0xd6000000
75#define	IXP2000_INTCTL_VIRT_BASE	0xfee00000
76#define	IXP2000_INTCTL_SIZE		0x00100000
77
78#define IXP2000_PCI_CREG_PHYS_BASE	0xde000000
79#define	IXP2000_PCI_CREG_VIRT_BASE	0xfed00000
80#define	IXP2000_PCI_CREG_SIZE		0x00100000
81
82#define IXP2000_PCI_CSR_PHYS_BASE	0xdf000000
83#define	IXP2000_PCI_CSR_VIRT_BASE	0xfec00000
84#define	IXP2000_PCI_CSR_SIZE		0x00100000
85
86#define IXP2000_MSF_PHYS_BASE		0xc8000000
87#define IXP2000_MSF_VIRT_BASE		0xfeb00000
88#define IXP2000_MSF_SIZE		0x00100000
89
90#define IXP2000_SCRATCH_RING_PHYS_BASE	0xcb400000
91#define IXP2000_SCRATCH_RING_VIRT_BASE	0xfea00000
92#define IXP2000_SCRATCH_RING_SIZE	0x00100000
93
94#define IXP2000_SRAM0_PHYS_BASE		0x80000000
95#define IXP2000_SRAM0_VIRT_BASE		0xfe900000
96#define IXP2000_SRAM0_SIZE		0x00100000
97
98#define IXP2000_PCI_IO_PHYS_BASE	0xd8000000
99#define	IXP2000_PCI_IO_VIRT_BASE	0xfd000000
100#define IXP2000_PCI_IO_SIZE     	0x01000000
101
102#define IXP2000_PCI_CFG0_PHYS_BASE	0xda000000
103#define IXP2000_PCI_CFG0_VIRT_BASE	0xfc000000
104#define IXP2000_PCI_CFG0_SIZE   	0x01000000
105
106#define IXP2000_PCI_CFG1_PHYS_BASE	0xdb000000
107#define IXP2000_PCI_CFG1_VIRT_BASE	0xfb000000
108#define IXP2000_PCI_CFG1_SIZE		0x01000000
109
110/*
111 * Timers
112 */
113#define	IXP2000_TIMER_REG(x)		((volatile unsigned long*)(IXP2000_TIMER_VIRT_BASE | (x)))
114/* Timer control */
115#define	IXP2000_T1_CTL			IXP2000_TIMER_REG(0x00)
116#define	IXP2000_T2_CTL			IXP2000_TIMER_REG(0x04)
117#define	IXP2000_T3_CTL			IXP2000_TIMER_REG(0x08)
118#define	IXP2000_T4_CTL			IXP2000_TIMER_REG(0x0c)
119/* Store initial value */
120#define	IXP2000_T1_CLD			IXP2000_TIMER_REG(0x10)
121#define	IXP2000_T2_CLD			IXP2000_TIMER_REG(0x14)
122#define	IXP2000_T3_CLD			IXP2000_TIMER_REG(0x18)
123#define	IXP2000_T4_CLD			IXP2000_TIMER_REG(0x1c)
124/* Read current value */
125#define	IXP2000_T1_CSR			IXP2000_TIMER_REG(0x20)
126#define	IXP2000_T2_CSR			IXP2000_TIMER_REG(0x24)
127#define	IXP2000_T3_CSR			IXP2000_TIMER_REG(0x28)
128#define	IXP2000_T4_CSR			IXP2000_TIMER_REG(0x2c)
129/* Clear associated timer interrupt */
130#define	IXP2000_T1_CLR			IXP2000_TIMER_REG(0x30)
131#define	IXP2000_T2_CLR			IXP2000_TIMER_REG(0x34)
132#define	IXP2000_T3_CLR			IXP2000_TIMER_REG(0x38)
133#define	IXP2000_T4_CLR			IXP2000_TIMER_REG(0x3c)
134/* Timer watchdog enable for T4 */
135#define	IXP2000_TWDE			IXP2000_TIMER_REG(0x40)
136
137#define	WDT_ENABLE			0x00000001
138#define	TIMER_DIVIDER_256		0x00000008
139#define	TIMER_ENABLE			0x00000080
140#define	IRQ_MASK_TIMER1         	(1 << 4)
141
142/*
143 * Interrupt controller registers
144 */
145#define IXP2000_INTCTL_REG(x)		(volatile unsigned long*)(IXP2000_INTCTL_VIRT_BASE | (x))
146#define IXP2000_IRQ_STATUS		IXP2000_INTCTL_REG(0x08)
147#define IXP2000_IRQ_ENABLE		IXP2000_INTCTL_REG(0x10)
148#define IXP2000_IRQ_ENABLE_SET		IXP2000_INTCTL_REG(0x10)
149#define IXP2000_IRQ_ENABLE_CLR		IXP2000_INTCTL_REG(0x18)
150#define IXP2000_FIQ_ENABLE_CLR		IXP2000_INTCTL_REG(0x14)
151#define IXP2000_IRQ_ERR_STATUS		IXP2000_INTCTL_REG(0x24)
152#define IXP2000_IRQ_ERR_ENABLE_SET	IXP2000_INTCTL_REG(0x2c)
153#define IXP2000_FIQ_ERR_ENABLE_CLR	IXP2000_INTCTL_REG(0x30)
154#define IXP2000_IRQ_ERR_ENABLE_CLR	IXP2000_INTCTL_REG(0x34)
155#define IXP2000_IRQ_THD_RAW_STATUS_A_0	IXP2000_INTCTL_REG(0x60)
156#define IXP2000_IRQ_THD_RAW_STATUS_A_1	IXP2000_INTCTL_REG(0x64)
157#define IXP2000_IRQ_THD_RAW_STATUS_A_2	IXP2000_INTCTL_REG(0x68)
158#define IXP2000_IRQ_THD_RAW_STATUS_A_3	IXP2000_INTCTL_REG(0x6c)
159#define IXP2000_IRQ_THD_RAW_STATUS_B_0	IXP2000_INTCTL_REG(0x80)
160#define IXP2000_IRQ_THD_RAW_STATUS_B_1	IXP2000_INTCTL_REG(0x84)
161#define IXP2000_IRQ_THD_RAW_STATUS_B_2	IXP2000_INTCTL_REG(0x88)
162#define IXP2000_IRQ_THD_RAW_STATUS_B_3	IXP2000_INTCTL_REG(0x8c)
163#define IXP2000_IRQ_THD_STATUS_A_0	IXP2000_INTCTL_REG(0xe0)
164#define IXP2000_IRQ_THD_STATUS_A_1	IXP2000_INTCTL_REG(0xe4)
165#define IXP2000_IRQ_THD_STATUS_A_2	IXP2000_INTCTL_REG(0xe8)
166#define IXP2000_IRQ_THD_STATUS_A_3	IXP2000_INTCTL_REG(0xec)
167#define IXP2000_IRQ_THD_STATUS_B_0	IXP2000_INTCTL_REG(0x100)
168#define IXP2000_IRQ_THD_STATUS_B_1	IXP2000_INTCTL_REG(0x104)
169#define IXP2000_IRQ_THD_STATUS_B_2	IXP2000_INTCTL_REG(0x108)
170#define IXP2000_IRQ_THD_STATUS_B_3	IXP2000_INTCTL_REG(0x10c)
171#define IXP2000_IRQ_THD_ENABLE_SET_A_0	IXP2000_INTCTL_REG(0x160)
172#define IXP2000_IRQ_THD_ENABLE_SET_A_1	IXP2000_INTCTL_REG(0x164)
173#define IXP2000_IRQ_THD_ENABLE_SET_A_2	IXP2000_INTCTL_REG(0x168)
174#define IXP2000_IRQ_THD_ENABLE_SET_A_3	IXP2000_INTCTL_REG(0x16c)
175#define IXP2000_IRQ_THD_ENABLE_SET_B_0	IXP2000_INTCTL_REG(0x180)
176#define IXP2000_IRQ_THD_ENABLE_SET_B_1	IXP2000_INTCTL_REG(0x184)
177#define IXP2000_IRQ_THD_ENABLE_SET_B_2	IXP2000_INTCTL_REG(0x188)
178#define IXP2000_IRQ_THD_ENABLE_SET_B_3	IXP2000_INTCTL_REG(0x18c)
179#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_0	IXP2000_INTCTL_REG(0x1e0)
180#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_1	IXP2000_INTCTL_REG(0x1e4)
181#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_2	IXP2000_INTCTL_REG(0x1e8)
182#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_3	IXP2000_INTCTL_REG(0x1ec)
183#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_0	IXP2000_INTCTL_REG(0x200)
184#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_1	IXP2000_INTCTL_REG(0x204)
185#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_2	IXP2000_INTCTL_REG(0x208)
186#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_3	IXP2000_INTCTL_REG(0x20c)
187
188/*
189 * Mask of valid IRQs in the 32-bit IRQ register. We use
190 * this to mark certain IRQs as being invalid.
191 */
192#define	IXP2000_VALID_IRQ_MASK	0x0f0fffff
193
194/*
195 * PCI config register access from core
196 */
197#define IXP2000_PCI_CREG(x)		(volatile unsigned long*)(IXP2000_PCI_CREG_VIRT_BASE | (x))
198#define IXP2000_PCI_CMDSTAT 		IXP2000_PCI_CREG(0x04)
199#define IXP2000_PCI_CSR_BAR		IXP2000_PCI_CREG(0x10)
200#define IXP2000_PCI_SRAM_BAR		IXP2000_PCI_CREG(0x14)
201#define IXP2000_PCI_SDRAM_BAR		IXP2000_PCI_CREG(0x18)
202
203/*
204 * PCI CSRs
205 */
206#define IXP2000_PCI_CSR(x)		(volatile unsigned long*)(IXP2000_PCI_CSR_VIRT_BASE | (x))
207
208/*
209 * PCI outbound interrupts
210 */
211#define IXP2000_PCI_OUT_INT_STATUS	IXP2000_PCI_CSR(0x30)
212#define IXP2000_PCI_OUT_INT_MASK	IXP2000_PCI_CSR(0x34)
213/*
214 * PCI communications
215 */
216#define IXP2000_PCI_MAILBOX0		IXP2000_PCI_CSR(0x50)
217#define IXP2000_PCI_MAILBOX1		IXP2000_PCI_CSR(0x54)
218#define IXP2000_PCI_MAILBOX2		IXP2000_PCI_CSR(0x58)
219#define IXP2000_PCI_MAILBOX3		IXP2000_PCI_CSR(0x5C)
220#define IXP2000_XSCALE_DOORBELL		IXP2000_PCI_CSR(0x60)
221#define IXP2000_XSCALE_DOORBELL_SETUP	IXP2000_PCI_CSR(0x64)
222#define IXP2000_PCI_DOORBELL		IXP2000_PCI_CSR(0x70)
223#define IXP2000_PCI_DOORBELL_SETUP	IXP2000_PCI_CSR(0x74)
224
225/*
226 * DMA engines
227 */
228#define IXP2000_PCI_CH1_BYTE_CNT	IXP2000_PCI_CSR(0x80)
229#define IXP2000_PCI_CH1_ADDR		IXP2000_PCI_CSR(0x84)
230#define IXP2000_PCI_CH1_DRAM_ADDR	IXP2000_PCI_CSR(0x88)
231#define IXP2000_PCI_CH1_DESC_PTR	IXP2000_PCI_CSR(0x8C)
232#define IXP2000_PCI_CH1_CNTRL		IXP2000_PCI_CSR(0x90)
233#define IXP2000_PCI_CH1_ME_PARAM	IXP2000_PCI_CSR(0x94)
234#define IXP2000_PCI_CH2_BYTE_CNT	IXP2000_PCI_CSR(0xA0)
235#define IXP2000_PCI_CH2_ADDR		IXP2000_PCI_CSR(0xA4)
236#define IXP2000_PCI_CH2_DRAM_ADDR	IXP2000_PCI_CSR(0xA8)
237#define IXP2000_PCI_CH2_DESC_PTR	IXP2000_PCI_CSR(0xAC)
238#define IXP2000_PCI_CH2_CNTRL		IXP2000_PCI_CSR(0xB0)
239#define IXP2000_PCI_CH2_ME_PARAM	IXP2000_PCI_CSR(0xB4)
240#define IXP2000_PCI_CH3_BYTE_CNT	IXP2000_PCI_CSR(0xC0)
241#define IXP2000_PCI_CH3_ADDR		IXP2000_PCI_CSR(0xC4)
242#define IXP2000_PCI_CH3_DRAM_ADDR	IXP2000_PCI_CSR(0xC8)
243#define IXP2000_PCI_CH3_DESC_PTR	IXP2000_PCI_CSR(0xCC)
244#define IXP2000_PCI_CH3_CNTRL		IXP2000_PCI_CSR(0xD0)
245#define IXP2000_PCI_CH3_ME_PARAM	IXP2000_PCI_CSR(0xD4)
246#define IXP2000_DMA_INF_MODE		IXP2000_PCI_CSR(0xE0)
247/*
248 * Size masks for BARs
249 */
250#define IXP2000_PCI_SRAM_BASE_ADDR_MASK	IXP2000_PCI_CSR(0xFC)
251#define IXP2000_PCI_DRAM_BASE_ADDR_MASK	IXP2000_PCI_CSR(0x100)
252/*
253 * Control and uEngine related
254 */
255#define IXP2000_PCI_CONTROL		IXP2000_PCI_CSR(0x13C)
256#define IXP2000_PCI_ADDR_EXT		IXP2000_PCI_CSR(0x140)
257#define IXP2000_PCI_ME_PUSH_STATUS	IXP2000_PCI_CSR(0x148)
258#define IXP2000_PCI_ME_PUSH_EN		IXP2000_PCI_CSR(0x14C)
259#define IXP2000_PCI_ERR_STATUS		IXP2000_PCI_CSR(0x150)
260#define IXP2000_PCI_ERR_ENABLE		IXP2000_PCI_CSR(0x154)
261/*
262 * Inbound PCI interrupt control
263 */
264#define IXP2000_PCI_XSCALE_INT_STATUS	IXP2000_PCI_CSR(0x158)
265#define IXP2000_PCI_XSCALE_INT_ENABLE	IXP2000_PCI_CSR(0x15C)
266
267#define IXP2000_PCICNTL_PNR		(1<<17)	/* PCI not Reset bit of PCI_CONTROL */
268#define IXP2000_PCICNTL_PCF		(1<<28)	/* PCI Central function bit */
269#define IXP2000_XSCALE_INT		(1<<1)	/* Interrupt from XScale to PCI */
270
271/* These are from the IRQ register in the PCI ISR register */
272#define PCI_CONTROL_BE_DEO		(1 << 22)	/* Big Endian Data Enable Out */
273#define PCI_CONTROL_BE_DEI		(1 << 21)	/* Big Endian Data Enable In  */
274#define PCI_CONTROL_BE_BEO		(1 << 20)	/* Big Endian Byte Enable Out */
275#define PCI_CONTROL_BE_BEI		(1 << 19)	/* Big Endian Byte Enable In  */
276#define PCI_CONTROL_IEE			(1 << 17)	/* I/O cycle Endian swap Enable */
277
278#define IXP2000_PCI_RST_REL		(1 << 2)
279#define CFG_RST_DIR			(*IXP2000_PCI_CONTROL & IXP2000_PCICNTL_PCF)
280#define CFG_PCI_BOOT_HOST		(1 << 2)
281#define CFG_BOOT_PROM			(1 << 1)
282
283/*
284 * SlowPort CSRs
285 *
286 * The slowport is used to access things like flash, SONET framer control
287 * ports, slave microprocessors, CPLDs, and others of chip memory mapped
288 * peripherals.
289 */
290#define	SLOWPORT_CSR(x)		(volatile unsigned long*)(IXP2000_SLOWPORT_CSR_VIRT_BASE | (x))
291
292#define	IXP2000_SLOWPORT_CCR		SLOWPORT_CSR(0x00)
293#define	IXP2000_SLOWPORT_WTC1		SLOWPORT_CSR(0x04)
294#define	IXP2000_SLOWPORT_WTC2		SLOWPORT_CSR(0x08)
295#define	IXP2000_SLOWPORT_RTC1		SLOWPORT_CSR(0x0c)
296#define	IXP2000_SLOWPORT_RTC2		SLOWPORT_CSR(0x10)
297#define	IXP2000_SLOWPORT_FSR		SLOWPORT_CSR(0x14)
298#define	IXP2000_SLOWPORT_PCR		SLOWPORT_CSR(0x18)
299#define	IXP2000_SLOWPORT_ADC		SLOWPORT_CSR(0x1C)
300#define	IXP2000_SLOWPORT_FAC		SLOWPORT_CSR(0x20)
301#define	IXP2000_SLOWPORT_FRM		SLOWPORT_CSR(0x24)
302#define	IXP2000_SLOWPORT_FIN		SLOWPORT_CSR(0x28)
303
304/*
305 * CCR values.
306 * The CCR configures the clock division for the slowport interface.
307 */
308#define	SLOWPORT_CCR_DIV_1		0x00
309#define	SLOWPORT_CCR_DIV_2		0x01
310#define	SLOWPORT_CCR_DIV_4		0x02
311#define	SLOWPORT_CCR_DIV_6		0x03
312#define	SLOWPORT_CCR_DIV_8		0x04
313#define	SLOWPORT_CCR_DIV_10		0x05
314#define	SLOWPORT_CCR_DIV_12		0x06
315#define	SLOWPORT_CCR_DIV_14		0x07
316#define	SLOWPORT_CCR_DIV_16		0x08
317#define	SLOWPORT_CCR_DIV_18		0x09
318#define	SLOWPORT_CCR_DIV_20		0x0a
319#define	SLOWPORT_CCR_DIV_22		0x0b
320#define	SLOWPORT_CCR_DIV_24		0x0c
321#define	SLOWPORT_CCR_DIV_26		0x0d
322#define	SLOWPORT_CCR_DIV_28		0x0e
323#define	SLOWPORT_CCR_DIV_30		0x0f
324
325/*
326 * PCR values.  PCR configure the mode of the interface.
327 */
328#define	SLOWPORT_MODE_FLASH		0x00
329#define	SLOWPORT_MODE_LUCENT		0x01
330#define	SLOWPORT_MODE_PMC_SIERRA	0x02
331#define	SLOWPORT_MODE_INTEL_UP		0x03
332#define	SLOWPORT_MODE_MOTOROLA_UP	0x04
333
334/*
335 * ADC values.  Defines data and address bus widths.
336 */
337#define	SLOWPORT_ADDR_WIDTH_8		0x00
338#define	SLOWPORT_ADDR_WIDTH_16		0x01
339#define	SLOWPORT_ADDR_WIDTH_24		0x02
340#define	SLOWPORT_ADDR_WIDTH_32		0x03
341#define	SLOWPORT_DATA_WIDTH_8		0x00
342#define	SLOWPORT_DATA_WIDTH_16		0x10
343#define	SLOWPORT_DATA_WIDTH_24		0x20
344#define	SLOWPORT_DATA_WIDTH_32		0x30
345
346/*
347 * Masks and shifts for various fields in the WTC and RTC registers.
348 */
349#define	SLOWPORT_WRTC_MASK_HD		0x0003
350#define	SLOWPORT_WRTC_MASK_PW		0x003c
351#define	SLOWPORT_WRTC_MASK_SU		0x03c0
352
353#define	SLOWPORT_WRTC_SHIFT_HD		0x00
354#define	SLOWPORT_WRTC_SHIFT_SU		0x02
355#define	SLOWPORT_WRTC_SHFIT_PW		0x06
356
357
358/*
359 * GPIO registers & GPIO interface.
360 */
361#define IXP2000_GPIO_REG(x)		((volatile unsigned long*)(IXP2000_GPIO_VIRT_BASE+(x)))
362#define IXP2000_GPIO_PLR		IXP2000_GPIO_REG(0x00)
363#define IXP2000_GPIO_PDPR		IXP2000_GPIO_REG(0x04)
364#define IXP2000_GPIO_PDSR		IXP2000_GPIO_REG(0x08)
365#define IXP2000_GPIO_PDCR		IXP2000_GPIO_REG(0x0c)
366#define IXP2000_GPIO_POPR		IXP2000_GPIO_REG(0x10)
367#define IXP2000_GPIO_POSR		IXP2000_GPIO_REG(0x14)
368#define IXP2000_GPIO_POCR		IXP2000_GPIO_REG(0x18)
369#define IXP2000_GPIO_REDR		IXP2000_GPIO_REG(0x1c)
370#define IXP2000_GPIO_FEDR		IXP2000_GPIO_REG(0x20)
371#define IXP2000_GPIO_EDSR		IXP2000_GPIO_REG(0x24)
372#define IXP2000_GPIO_LSHR		IXP2000_GPIO_REG(0x28)
373#define IXP2000_GPIO_LSLR		IXP2000_GPIO_REG(0x2c)
374#define IXP2000_GPIO_LDSR		IXP2000_GPIO_REG(0x30)
375#define IXP2000_GPIO_INER		IXP2000_GPIO_REG(0x34)
376#define IXP2000_GPIO_INSR		IXP2000_GPIO_REG(0x38)
377#define IXP2000_GPIO_INCR		IXP2000_GPIO_REG(0x3c)
378#define IXP2000_GPIO_INST		IXP2000_GPIO_REG(0x40)
379
380/*
381 * "Global" registers...whatever that's supposed to mean.
382 */
383#define GLOBAL_REG_BASE			(IXP2000_GLOBAL_REG_VIRT_BASE + 0x0a00)
384#define GLOBAL_REG(x)			(volatile unsigned long*)(GLOBAL_REG_BASE | (x))
385
386#define IXP2000_MAJ_PROD_TYPE_MASK	0x001F0000
387#define IXP2000_MAJ_PROD_TYPE_IXP2000	0x00000000
388#define IXP2000_MIN_PROD_TYPE_MASK 	0x0000FF00
389#define IXP2000_MIN_PROD_TYPE_IXP2400	0x00000200
390#define IXP2000_MIN_PROD_TYPE_IXP2850	0x00000100
391#define IXP2000_MIN_PROD_TYPE_IXP2800	0x00000000
392#define IXP2000_MAJ_REV_MASK	      	0x000000F0
393#define IXP2000_MIN_REV_MASK	      	0x0000000F
394#define IXP2000_PROD_ID_MASK		0xFFFFFFFF
395
396#define IXP2000_PRODUCT_ID		GLOBAL_REG(0x00)
397#define IXP2000_MISC_CONTROL		GLOBAL_REG(0x04)
398#define IXP2000_MSF_CLK_CNTRL  		GLOBAL_REG(0x08)
399#define IXP2000_RESET0      		GLOBAL_REG(0x0c)
400#define IXP2000_RESET1      		GLOBAL_REG(0x10)
401#define IXP2000_CCR            		GLOBAL_REG(0x14)
402#define	IXP2000_STRAP_OPTIONS  		GLOBAL_REG(0x18)
403
404#define	RSTALL				(1 << 16)
405#define	WDT_RESET_ENABLE		0x01000000
406
407
408/*
409 * MSF registers.  The IXP2400 and IXP2800 have somewhat different MSF
410 * units, but the registers that differ between the two don't overlap,
411 * so we can have one register list for both.
412 */
413#define IXP2000_MSF_REG(x)			((volatile unsigned long*)(IXP2000_MSF_VIRT_BASE + (x)))
414#define IXP2000_MSF_RX_CONTROL			IXP2000_MSF_REG(0x0000)
415#define IXP2000_MSF_TX_CONTROL			IXP2000_MSF_REG(0x0004)
416#define IXP2000_MSF_INTERRUPT_STATUS		IXP2000_MSF_REG(0x0008)
417#define IXP2000_MSF_INTERRUPT_ENABLE		IXP2000_MSF_REG(0x000c)
418#define IXP2000_MSF_CSIX_TYPE_MAP		IXP2000_MSF_REG(0x0010)
419#define IXP2000_MSF_FC_EGRESS_STATUS		IXP2000_MSF_REG(0x0014)
420#define IXP2000_MSF_FC_INGRESS_STATUS		IXP2000_MSF_REG(0x0018)
421#define IXP2000_MSF_HWM_CONTROL			IXP2000_MSF_REG(0x0024)
422#define IXP2000_MSF_FC_STATUS_OVERRIDE		IXP2000_MSF_REG(0x0028)
423#define IXP2000_MSF_CLOCK_CONTROL		IXP2000_MSF_REG(0x002c)
424#define IXP2000_MSF_RX_PORT_MAP			IXP2000_MSF_REG(0x0040)
425#define IXP2000_MSF_RBUF_ELEMENT_DONE		IXP2000_MSF_REG(0x0044)
426#define IXP2000_MSF_RX_MPHY_POLL_LIMIT		IXP2000_MSF_REG(0x0048)
427#define IXP2000_MSF_RX_CALENDAR_LENGTH		IXP2000_MSF_REG(0x0048)
428#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_0	IXP2000_MSF_REG(0x0050)
429#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_1	IXP2000_MSF_REG(0x0054)
430#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_2	IXP2000_MSF_REG(0x0058)
431#define IXP2000_MSF_TX_SEQUENCE_0		IXP2000_MSF_REG(0x0060)
432#define IXP2000_MSF_TX_SEQUENCE_1		IXP2000_MSF_REG(0x0064)
433#define IXP2000_MSF_TX_SEQUENCE_2		IXP2000_MSF_REG(0x0068)
434#define IXP2000_MSF_TX_MPHY_POLL_LIMIT		IXP2000_MSF_REG(0x0070)
435#define IXP2000_MSF_TX_CALENDAR_LENGTH		IXP2000_MSF_REG(0x0070)
436#define IXP2000_MSF_RX_UP_CONTROL_0		IXP2000_MSF_REG(0x0080)
437#define IXP2000_MSF_RX_UP_CONTROL_1		IXP2000_MSF_REG(0x0084)
438#define IXP2000_MSF_RX_UP_CONTROL_2		IXP2000_MSF_REG(0x0088)
439#define IXP2000_MSF_RX_UP_CONTROL_3		IXP2000_MSF_REG(0x008c)
440#define IXP2000_MSF_TX_UP_CONTROL_0		IXP2000_MSF_REG(0x0090)
441#define IXP2000_MSF_TX_UP_CONTROL_1		IXP2000_MSF_REG(0x0094)
442#define IXP2000_MSF_TX_UP_CONTROL_2		IXP2000_MSF_REG(0x0098)
443#define IXP2000_MSF_TX_UP_CONTROL_3		IXP2000_MSF_REG(0x009c)
444#define IXP2000_MSF_TRAIN_DATA			IXP2000_MSF_REG(0x00a0)
445#define IXP2000_MSF_TRAIN_CALENDAR		IXP2000_MSF_REG(0x00a4)
446#define IXP2000_MSF_TRAIN_FLOW_CONTROL		IXP2000_MSF_REG(0x00a8)
447#define IXP2000_MSF_TX_CALENDAR_0		IXP2000_MSF_REG(0x1000)
448#define IXP2000_MSF_RX_PORT_CALENDAR_STATUS	IXP2000_MSF_REG(0x1400)
449
450
451#endif				/* _IXP2000_H_ */
452