treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / arch / mips / ath25 / ar2315_regs.h
blob16e86149cb7436dda76a10f8e39f3d8d4118704e
1 /*
2 * Register definitions for AR2315+
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
6 * for more details.
8 * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
9 * Copyright (C) 2006 FON Technology, SL.
10 * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
11 * Copyright (C) 2006-2008 Felix Fietkau <nbd@openwrt.org>
14 #ifndef __ASM_MACH_ATH25_AR2315_REGS_H
15 #define __ASM_MACH_ATH25_AR2315_REGS_H
18 * IRQs
20 #define AR2315_IRQ_MISC (MIPS_CPU_IRQ_BASE + 2) /* C0_CAUSE: 0x0400 */
21 #define AR2315_IRQ_WLAN0 (MIPS_CPU_IRQ_BASE + 3) /* C0_CAUSE: 0x0800 */
22 #define AR2315_IRQ_ENET0 (MIPS_CPU_IRQ_BASE + 4) /* C0_CAUSE: 0x1000 */
23 #define AR2315_IRQ_LCBUS_PCI (MIPS_CPU_IRQ_BASE + 5) /* C0_CAUSE: 0x2000 */
24 #define AR2315_IRQ_WLAN0_POLL (MIPS_CPU_IRQ_BASE + 6) /* C0_CAUSE: 0x4000 */
27 * Miscellaneous interrupts, which share IP2.
29 #define AR2315_MISC_IRQ_UART0 0
30 #define AR2315_MISC_IRQ_I2C_RSVD 1
31 #define AR2315_MISC_IRQ_SPI 2
32 #define AR2315_MISC_IRQ_AHB 3
33 #define AR2315_MISC_IRQ_APB 4
34 #define AR2315_MISC_IRQ_TIMER 5
35 #define AR2315_MISC_IRQ_GPIO 6
36 #define AR2315_MISC_IRQ_WATCHDOG 7
37 #define AR2315_MISC_IRQ_IR_RSVD 8
38 #define AR2315_MISC_IRQ_COUNT 9
41 * Address map
43 #define AR2315_SPI_READ_BASE 0x08000000 /* SPI flash */
44 #define AR2315_SPI_READ_SIZE 0x01000000
45 #define AR2315_WLAN0_BASE 0x10000000 /* Wireless MMR */
46 #define AR2315_PCI_BASE 0x10100000 /* PCI MMR */
47 #define AR2315_PCI_SIZE 0x00001000
48 #define AR2315_SDRAMCTL_BASE 0x10300000 /* SDRAM MMR */
49 #define AR2315_SDRAMCTL_SIZE 0x00000020
50 #define AR2315_LOCAL_BASE 0x10400000 /* Local bus MMR */
51 #define AR2315_ENET0_BASE 0x10500000 /* Ethernet MMR */
52 #define AR2315_RST_BASE 0x11000000 /* Reset control MMR */
53 #define AR2315_RST_SIZE 0x00000100
54 #define AR2315_UART0_BASE 0x11100000 /* UART MMR */
55 #define AR2315_SPI_MMR_BASE 0x11300000 /* SPI flash MMR */
56 #define AR2315_SPI_MMR_SIZE 0x00000010
57 #define AR2315_PCI_EXT_BASE 0x80000000 /* PCI external */
58 #define AR2315_PCI_EXT_SIZE 0x40000000
61 * Configuration registers
64 /* Cold reset register */
65 #define AR2315_COLD_RESET 0x0000
67 #define AR2315_RESET_COLD_AHB 0x00000001
68 #define AR2315_RESET_COLD_APB 0x00000002
69 #define AR2315_RESET_COLD_CPU 0x00000004
70 #define AR2315_RESET_COLD_CPUWARM 0x00000008
71 #define AR2315_RESET_SYSTEM (RESET_COLD_CPU |\
72 RESET_COLD_APB |\
73 RESET_COLD_AHB) /* full system */
74 #define AR2317_RESET_SYSTEM 0x00000010
76 /* Reset register */
77 #define AR2315_RESET 0x0004
79 #define AR2315_RESET_WARM_WLAN0_MAC 0x00000001 /* warm reset WLAN0 MAC */
80 #define AR2315_RESET_WARM_WLAN0_BB 0x00000002 /* warm reset WLAN0 BB */
81 #define AR2315_RESET_MPEGTS_RSVD 0x00000004 /* warm reset MPEG-TS */
82 #define AR2315_RESET_PCIDMA 0x00000008 /* warm reset PCI ahb/dma */
83 #define AR2315_RESET_MEMCTL 0x00000010 /* warm reset mem control */
84 #define AR2315_RESET_LOCAL 0x00000020 /* warm reset local bus */
85 #define AR2315_RESET_I2C_RSVD 0x00000040 /* warm reset I2C bus */
86 #define AR2315_RESET_SPI 0x00000080 /* warm reset SPI iface */
87 #define AR2315_RESET_UART0 0x00000100 /* warm reset UART0 */
88 #define AR2315_RESET_IR_RSVD 0x00000200 /* warm reset IR iface */
89 #define AR2315_RESET_EPHY0 0x00000400 /* cold reset ENET0 phy */
90 #define AR2315_RESET_ENET0 0x00000800 /* cold reset ENET0 MAC */
92 /* AHB master arbitration control */
93 #define AR2315_AHB_ARB_CTL 0x0008
95 #define AR2315_ARB_CPU 0x00000001 /* CPU, default */
96 #define AR2315_ARB_WLAN 0x00000002 /* WLAN */
97 #define AR2315_ARB_MPEGTS_RSVD 0x00000004 /* MPEG-TS */
98 #define AR2315_ARB_LOCAL 0x00000008 /* Local bus */
99 #define AR2315_ARB_PCI 0x00000010 /* PCI bus */
100 #define AR2315_ARB_ETHERNET 0x00000020 /* Ethernet */
101 #define AR2315_ARB_RETRY 0x00000100 /* Retry policy (debug) */
103 /* Config Register */
104 #define AR2315_ENDIAN_CTL 0x000c
106 #define AR2315_CONFIG_AHB 0x00000001 /* EC-AHB bridge endian */
107 #define AR2315_CONFIG_WLAN 0x00000002 /* WLAN byteswap */
108 #define AR2315_CONFIG_MPEGTS_RSVD 0x00000004 /* MPEG-TS byteswap */
109 #define AR2315_CONFIG_PCI 0x00000008 /* PCI byteswap */
110 #define AR2315_CONFIG_MEMCTL 0x00000010 /* Mem controller endian */
111 #define AR2315_CONFIG_LOCAL 0x00000020 /* Local bus byteswap */
112 #define AR2315_CONFIG_ETHERNET 0x00000040 /* Ethernet byteswap */
113 #define AR2315_CONFIG_MERGE 0x00000200 /* CPU write buffer merge */
114 #define AR2315_CONFIG_CPU 0x00000400 /* CPU big endian */
115 #define AR2315_CONFIG_BIG 0x00000400
116 #define AR2315_CONFIG_PCIAHB 0x00000800
117 #define AR2315_CONFIG_PCIAHB_BRIDGE 0x00001000
118 #define AR2315_CONFIG_SPI 0x00008000 /* SPI byteswap */
119 #define AR2315_CONFIG_CPU_DRAM 0x00010000
120 #define AR2315_CONFIG_CPU_PCI 0x00020000
121 #define AR2315_CONFIG_CPU_MMR 0x00040000
123 /* NMI control */
124 #define AR2315_NMI_CTL 0x0010
126 #define AR2315_NMI_EN 1
128 /* Revision Register - Initial value is 0x3010 (WMAC 3.0, AR231X 1.0). */
129 #define AR2315_SREV 0x0014
131 #define AR2315_REV_MAJ 0x000000f0
132 #define AR2315_REV_MAJ_S 4
133 #define AR2315_REV_MIN 0x0000000f
134 #define AR2315_REV_MIN_S 0
135 #define AR2315_REV_CHIP (AR2315_REV_MAJ | AR2315_REV_MIN)
137 /* Interface Enable */
138 #define AR2315_IF_CTL 0x0018
140 #define AR2315_IF_MASK 0x00000007
141 #define AR2315_IF_DISABLED 0 /* Disable all */
142 #define AR2315_IF_PCI 1 /* PCI */
143 #define AR2315_IF_TS_LOCAL 2 /* Local bus */
144 #define AR2315_IF_ALL 3 /* Emulation only */
145 #define AR2315_IF_LOCAL_HOST 0x00000008
146 #define AR2315_IF_PCI_HOST 0x00000010
147 #define AR2315_IF_PCI_INTR 0x00000020
148 #define AR2315_IF_PCI_CLK_MASK 0x00030000
149 #define AR2315_IF_PCI_CLK_INPUT 0
150 #define AR2315_IF_PCI_CLK_OUTPUT_LOW 1
151 #define AR2315_IF_PCI_CLK_OUTPUT_CLK 2
152 #define AR2315_IF_PCI_CLK_OUTPUT_HIGH 3
153 #define AR2315_IF_PCI_CLK_SHIFT 16
155 /* APB Interrupt control */
156 #define AR2315_ISR 0x0020
157 #define AR2315_IMR 0x0024
158 #define AR2315_GISR 0x0028
160 #define AR2315_ISR_UART0 0x00000001 /* high speed UART */
161 #define AR2315_ISR_I2C_RSVD 0x00000002 /* I2C bus */
162 #define AR2315_ISR_SPI 0x00000004 /* SPI bus */
163 #define AR2315_ISR_AHB 0x00000008 /* AHB error */
164 #define AR2315_ISR_APB 0x00000010 /* APB error */
165 #define AR2315_ISR_TIMER 0x00000020 /* Timer */
166 #define AR2315_ISR_GPIO 0x00000040 /* GPIO */
167 #define AR2315_ISR_WD 0x00000080 /* Watchdog */
168 #define AR2315_ISR_IR_RSVD 0x00000100 /* IR */
170 #define AR2315_GISR_MISC 0x00000001 /* Misc */
171 #define AR2315_GISR_WLAN0 0x00000002 /* WLAN0 */
172 #define AR2315_GISR_MPEGTS_RSVD 0x00000004 /* MPEG-TS */
173 #define AR2315_GISR_LOCALPCI 0x00000008 /* Local/PCI bus */
174 #define AR2315_GISR_WMACPOLL 0x00000010
175 #define AR2315_GISR_TIMER 0x00000020
176 #define AR2315_GISR_ETHERNET 0x00000040 /* Ethernet */
178 /* Generic timer */
179 #define AR2315_TIMER 0x0030
180 #define AR2315_RELOAD 0x0034
182 /* Watchdog timer */
183 #define AR2315_WDT_TIMER 0x0038
184 #define AR2315_WDT_CTRL 0x003c
186 #define AR2315_WDT_CTRL_IGNORE 0x00000000 /* ignore expiration */
187 #define AR2315_WDT_CTRL_NMI 0x00000001 /* NMI on watchdog */
188 #define AR2315_WDT_CTRL_RESET 0x00000002 /* reset on watchdog */
190 /* CPU Performance Counters */
191 #define AR2315_PERFCNT0 0x0048
192 #define AR2315_PERFCNT1 0x004c
194 #define AR2315_PERF0_DATAHIT 0x00000001 /* Count Data Cache Hits */
195 #define AR2315_PERF0_DATAMISS 0x00000002 /* Count Data Cache Misses */
196 #define AR2315_PERF0_INSTHIT 0x00000004 /* Count Instruction Cache Hits */
197 #define AR2315_PERF0_INSTMISS 0x00000008 /* Count Instruction Cache Misses */
198 #define AR2315_PERF0_ACTIVE 0x00000010 /* Count Active Processor Cycles */
199 #define AR2315_PERF0_WBHIT 0x00000020 /* Count CPU Write Buffer Hits */
200 #define AR2315_PERF0_WBMISS 0x00000040 /* Count CPU Write Buffer Misses */
202 #define AR2315_PERF1_EB_ARDY 0x00000001 /* Count EB_ARdy signal */
203 #define AR2315_PERF1_EB_AVALID 0x00000002 /* Count EB_AValid signal */
204 #define AR2315_PERF1_EB_WDRDY 0x00000004 /* Count EB_WDRdy signal */
205 #define AR2315_PERF1_EB_RDVAL 0x00000008 /* Count EB_RdVal signal */
206 #define AR2315_PERF1_VRADDR 0x00000010 /* Count valid read address cycles*/
207 #define AR2315_PERF1_VWADDR 0x00000020 /* Count valid write address cycl.*/
208 #define AR2315_PERF1_VWDATA 0x00000040 /* Count valid write data cycles */
210 /* AHB Error Reporting */
211 #define AR2315_AHB_ERR0 0x0050 /* error */
212 #define AR2315_AHB_ERR1 0x0054 /* haddr */
213 #define AR2315_AHB_ERR2 0x0058 /* hwdata */
214 #define AR2315_AHB_ERR3 0x005c /* hrdata */
215 #define AR2315_AHB_ERR4 0x0060 /* status */
217 #define AR2315_AHB_ERROR_DET 1 /* AHB Error has been detected, */
218 /* write 1 to clear all bits in ERR0 */
219 #define AR2315_AHB_ERROR_OVR 2 /* AHB Error overflow has been detected */
220 #define AR2315_AHB_ERROR_WDT 4 /* AHB Error due to wdt instead of hresp */
222 #define AR2315_PROCERR_HMAST 0x0000000f
223 #define AR2315_PROCERR_HMAST_DFLT 0
224 #define AR2315_PROCERR_HMAST_WMAC 1
225 #define AR2315_PROCERR_HMAST_ENET 2
226 #define AR2315_PROCERR_HMAST_PCIENDPT 3
227 #define AR2315_PROCERR_HMAST_LOCAL 4
228 #define AR2315_PROCERR_HMAST_CPU 5
229 #define AR2315_PROCERR_HMAST_PCITGT 6
230 #define AR2315_PROCERR_HMAST_S 0
231 #define AR2315_PROCERR_HWRITE 0x00000010
232 #define AR2315_PROCERR_HSIZE 0x00000060
233 #define AR2315_PROCERR_HSIZE_S 5
234 #define AR2315_PROCERR_HTRANS 0x00000180
235 #define AR2315_PROCERR_HTRANS_S 7
236 #define AR2315_PROCERR_HBURST 0x00000e00
237 #define AR2315_PROCERR_HBURST_S 9
239 /* Clock Control */
240 #define AR2315_PLLC_CTL 0x0064
241 #define AR2315_PLLV_CTL 0x0068
242 #define AR2315_CPUCLK 0x006c
243 #define AR2315_AMBACLK 0x0070
244 #define AR2315_SYNCCLK 0x0074
245 #define AR2315_DSL_SLEEP_CTL 0x0080
246 #define AR2315_DSL_SLEEP_DUR 0x0084
248 /* PLLc Control fields */
249 #define AR2315_PLLC_REF_DIV_M 0x00000003
250 #define AR2315_PLLC_REF_DIV_S 0
251 #define AR2315_PLLC_FDBACK_DIV_M 0x0000007c
252 #define AR2315_PLLC_FDBACK_DIV_S 2
253 #define AR2315_PLLC_ADD_FDBACK_DIV_M 0x00000080
254 #define AR2315_PLLC_ADD_FDBACK_DIV_S 7
255 #define AR2315_PLLC_CLKC_DIV_M 0x0001c000
256 #define AR2315_PLLC_CLKC_DIV_S 14
257 #define AR2315_PLLC_CLKM_DIV_M 0x00700000
258 #define AR2315_PLLC_CLKM_DIV_S 20
260 /* CPU CLK Control fields */
261 #define AR2315_CPUCLK_CLK_SEL_M 0x00000003
262 #define AR2315_CPUCLK_CLK_SEL_S 0
263 #define AR2315_CPUCLK_CLK_DIV_M 0x0000000c
264 #define AR2315_CPUCLK_CLK_DIV_S 2
266 /* AMBA CLK Control fields */
267 #define AR2315_AMBACLK_CLK_SEL_M 0x00000003
268 #define AR2315_AMBACLK_CLK_SEL_S 0
269 #define AR2315_AMBACLK_CLK_DIV_M 0x0000000c
270 #define AR2315_AMBACLK_CLK_DIV_S 2
272 /* PCI Clock Control */
273 #define AR2315_PCICLK 0x00a4
275 #define AR2315_PCICLK_INPUT_M 0x00000003
276 #define AR2315_PCICLK_INPUT_S 0
277 #define AR2315_PCICLK_PLLC_CLKM 0
278 #define AR2315_PCICLK_PLLC_CLKM1 1
279 #define AR2315_PCICLK_PLLC_CLKC 2
280 #define AR2315_PCICLK_REF_CLK 3
281 #define AR2315_PCICLK_DIV_M 0x0000000c
282 #define AR2315_PCICLK_DIV_S 2
283 #define AR2315_PCICLK_IN_FREQ 0
284 #define AR2315_PCICLK_IN_FREQ_DIV_6 1
285 #define AR2315_PCICLK_IN_FREQ_DIV_8 2
286 #define AR2315_PCICLK_IN_FREQ_DIV_10 3
288 /* Observation Control Register */
289 #define AR2315_OCR 0x00b0
291 #define AR2315_OCR_GPIO0_IRIN 0x00000040
292 #define AR2315_OCR_GPIO1_IROUT 0x00000080
293 #define AR2315_OCR_GPIO3_RXCLR 0x00000200
295 /* General Clock Control */
296 #define AR2315_MISCCLK 0x00b4
298 #define AR2315_MISCCLK_PLLBYPASS_EN 0x00000001
299 #define AR2315_MISCCLK_PROCREFCLK 0x00000002
302 * SDRAM Controller
303 * - No read or write buffers are included.
305 #define AR2315_MEM_CFG 0x0000
306 #define AR2315_MEM_CTRL 0x000c
307 #define AR2315_MEM_REF 0x0010
309 #define AR2315_MEM_CFG_DATA_WIDTH_M 0x00006000
310 #define AR2315_MEM_CFG_DATA_WIDTH_S 13
311 #define AR2315_MEM_CFG_COL_WIDTH_M 0x00001e00
312 #define AR2315_MEM_CFG_COL_WIDTH_S 9
313 #define AR2315_MEM_CFG_ROW_WIDTH_M 0x000001e0
314 #define AR2315_MEM_CFG_ROW_WIDTH_S 5
315 #define AR2315_MEM_CFG_BANKADDR_BITS_M 0x00000018
316 #define AR2315_MEM_CFG_BANKADDR_BITS_S 3
319 * Local Bus Interface Registers
321 #define AR2315_LB_CONFIG 0x0000
323 #define AR2315_LBCONF_OE 0x00000001 /* =1 OE is low-true */
324 #define AR2315_LBCONF_CS0 0x00000002 /* =1 first CS is low-true */
325 #define AR2315_LBCONF_CS1 0x00000004 /* =1 2nd CS is low-true */
326 #define AR2315_LBCONF_RDY 0x00000008 /* =1 RDY is low-true */
327 #define AR2315_LBCONF_WE 0x00000010 /* =1 Write En is low-true */
328 #define AR2315_LBCONF_WAIT 0x00000020 /* =1 WAIT is low-true */
329 #define AR2315_LBCONF_ADS 0x00000040 /* =1 Adr Strobe is low-true */
330 #define AR2315_LBCONF_MOT 0x00000080 /* =0 Intel, =1 Motorola */
331 #define AR2315_LBCONF_8CS 0x00000100 /* =1 8 bits CS, 0= 16bits */
332 #define AR2315_LBCONF_8DS 0x00000200 /* =1 8 bits Data S, 0=16bits */
333 #define AR2315_LBCONF_ADS_EN 0x00000400 /* =1 Enable ADS */
334 #define AR2315_LBCONF_ADR_OE 0x00000800 /* =1 Adr cap on OE, WE or DS */
335 #define AR2315_LBCONF_ADDT_MUX 0x00001000 /* =1 Adr and Data share bus */
336 #define AR2315_LBCONF_DATA_OE 0x00002000 /* =1 Data cap on OE, WE, DS */
337 #define AR2315_LBCONF_16DATA 0x00004000 /* =1 Data is 16 bits wide */
338 #define AR2315_LBCONF_SWAPDT 0x00008000 /* =1 Byte swap data */
339 #define AR2315_LBCONF_SYNC 0x00010000 /* =1 Bus synchronous to clk */
340 #define AR2315_LBCONF_INT 0x00020000 /* =1 Intr is low true */
341 #define AR2315_LBCONF_INT_CTR0 0x00000000 /* GND high-Z, Vdd is high-Z */
342 #define AR2315_LBCONF_INT_CTR1 0x00040000 /* GND drive, Vdd is high-Z */
343 #define AR2315_LBCONF_INT_CTR2 0x00080000 /* GND high-Z, Vdd drive */
344 #define AR2315_LBCONF_INT_CTR3 0x000c0000 /* GND drive, Vdd drive */
345 #define AR2315_LBCONF_RDY_WAIT 0x00100000 /* =1 RDY is negative of WAIT */
346 #define AR2315_LBCONF_INT_PULSE 0x00200000 /* =1 Interrupt is a pulse */
347 #define AR2315_LBCONF_ENABLE 0x00400000 /* =1 Falcon respond to LB */
349 #define AR2315_LB_CLKSEL 0x0004
351 #define AR2315_LBCLK_EXT 0x00000001 /* use external clk for lb */
353 #define AR2315_LB_1MS 0x0008
355 #define AR2315_LB1MS_MASK 0x0003ffff /* # of AHB clk cycles in 1ms */
357 #define AR2315_LB_MISCCFG 0x000c
359 #define AR2315_LBM_TXD_EN 0x00000001 /* Enable TXD for fragments */
360 #define AR2315_LBM_RX_INTEN 0x00000002 /* Enable LB ints on RX ready */
361 #define AR2315_LBM_MBOXWR_INTEN 0x00000004 /* Enable LB ints on mbox wr */
362 #define AR2315_LBM_MBOXRD_INTEN 0x00000008 /* Enable LB ints on mbox rd */
363 #define AR2315_LMB_DESCSWAP_EN 0x00000010 /* Byte swap desc enable */
364 #define AR2315_LBM_TIMEOUT_M 0x00ffff80
365 #define AR2315_LBM_TIMEOUT_S 7
366 #define AR2315_LBM_PORTMUX 0x07000000
368 #define AR2315_LB_RXTSOFF 0x0010
370 #define AR2315_LB_TX_CHAIN_EN 0x0100
372 #define AR2315_LB_TXEN_0 0x00000001
373 #define AR2315_LB_TXEN_1 0x00000002
374 #define AR2315_LB_TXEN_2 0x00000004
375 #define AR2315_LB_TXEN_3 0x00000008
377 #define AR2315_LB_TX_CHAIN_DIS 0x0104
378 #define AR2315_LB_TX_DESC_PTR 0x0200
380 #define AR2315_LB_RX_CHAIN_EN 0x0400
382 #define AR2315_LB_RXEN 0x00000001
384 #define AR2315_LB_RX_CHAIN_DIS 0x0404
385 #define AR2315_LB_RX_DESC_PTR 0x0408
387 #define AR2315_LB_INT_STATUS 0x0500
389 #define AR2315_LB_INT_TX_DESC 0x00000001
390 #define AR2315_LB_INT_TX_OK 0x00000002
391 #define AR2315_LB_INT_TX_ERR 0x00000004
392 #define AR2315_LB_INT_TX_EOF 0x00000008
393 #define AR2315_LB_INT_RX_DESC 0x00000010
394 #define AR2315_LB_INT_RX_OK 0x00000020
395 #define AR2315_LB_INT_RX_ERR 0x00000040
396 #define AR2315_LB_INT_RX_EOF 0x00000080
397 #define AR2315_LB_INT_TX_TRUNC 0x00000100
398 #define AR2315_LB_INT_TX_STARVE 0x00000200
399 #define AR2315_LB_INT_LB_TIMEOUT 0x00000400
400 #define AR2315_LB_INT_LB_ERR 0x00000800
401 #define AR2315_LB_INT_MBOX_WR 0x00001000
402 #define AR2315_LB_INT_MBOX_RD 0x00002000
404 /* Bit definitions for INT MASK are the same as INT_STATUS */
405 #define AR2315_LB_INT_MASK 0x0504
407 #define AR2315_LB_INT_EN 0x0508
408 #define AR2315_LB_MBOX 0x0600
410 #endif /* __ASM_MACH_ATH25_AR2315_REGS_H */