6 * Kenati Technologies, Inc.
8 * board/ms7722se/lowlevel_init.S
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/processor.h>
32 * Board specific low level init code, called _very_ early in the
33 * startup sequence. Relocation to SDRAM has not happened yet, no
34 * stack is available, bss section has not been initialised, etc.
36 * (Note: As no stack is available, no subroutines can be called...).
46 /* Address of Cache Control Register */
48 /*Instruction Cache Invalidate */
52 /* Address of MMU Control Register */
54 /* TI == TLB Invalidate bit */
58 /* Address of Power Control Register 0 */
63 /* Address of Power Control Register 2 */
76 /* 0xA4520004 (Watchdog Control / Status Register) */
78 /* 0xA507 -> timer_STOP/WDT_CLK=max */
79 ! mov.w RWTCSR_D_1, r0
82 /* 0xA4520000 (Watchdog Count Register) */
88 /* 0xA4520004 (Watchdog Control / Status Register) */
90 /* 0xA504 -> timer_STOP/CLK=500ms */
94 /* 0xA4150000 Frequency control register */
129 mov.l CMNCR_A, r1 ! CMNCR address -> R1
130 mov.l CMNCR_D, r0 ! CMNCR data -> R0
131 mov.l r0, @r1 ! CMNCR set
133 mov.l CS0BCR_A, r1 ! CS0BCR address -> R1
134 mov.l CS0BCR_D, r0 ! CS0BCR data -> R0
135 mov.l r0, @r1 ! CS0BCR set
137 mov.l CS2BCR_A, r1 ! CS2BCR address -> R1
138 mov.l CS2BCR_D, r0 ! CS2BCR data -> R0
139 mov.l r0, @r1 ! CS2BCR set
141 mov.l CS4BCR_A, r1 ! CS4BCR address -> R1
142 mov.l CS4BCR_D, r0 ! CS4BCR data -> R0
143 mov.l r0, @r1 ! CS4BCR set
145 mov.l CS5ABCR_A, r1 ! CS5ABCR address -> R1
146 mov.l CS5ABCR_D, r0 ! CS5ABCR data -> R0
147 mov.l r0, @r1 ! CS5ABCR set
149 mov.l CS5BBCR_A, r1 ! CS5BBCR address -> R1
150 mov.l CS5BBCR_D, r0 ! CS5BBCR data -> R0
151 mov.l r0, @r1 ! CS5BBCR set
153 mov.l CS6ABCR_A, r1 ! CS6ABCR address -> R1
154 mov.l CS6ABCR_D, r0 ! CS6ABCR data -> R0
155 mov.l r0, @r1 ! CS6ABCR set
157 mov.l CS0WCR_A, r1 ! CS0WCR address -> R1
158 mov.l CS0WCR_D, r0 ! CS0WCR data -> R0
159 mov.l r0, @r1 ! CS0WCR set
161 mov.l CS2WCR_A, r1 ! CS2WCR address -> R1
162 mov.l CS2WCR_D, r0 ! CS2WCR data -> R0
163 mov.l r0, @r1 ! CS2WCR set
165 mov.l CS4WCR_A, r1 ! CS4WCR address -> R1
166 mov.l CS4WCR_D, r0 ! CS4WCR data -> R0
167 mov.l r0, @r1 ! CS4WCR set
169 mov.l CS5AWCR_A, r1 ! CS5AWCR address -> R1
170 mov.l CS5AWCR_D, r0 ! CS5AWCR data -> R0
171 mov.l r0, @r1 ! CS5AWCR set
173 mov.l CS5BWCR_A, r1 ! CS5BWCR address -> R1
174 mov.l CS5BWCR_D, r0 ! CS5BWCR data -> R0
175 mov.l r0, @r1 ! CS5BWCR set
177 mov.l CS6AWCR_A, r1 ! CS6AWCR address -> R1
178 mov.l CS6AWCR_D, r0 ! CS6AWCR data -> R0
179 mov.l r0, @r1 ! CS6AWCR set
181 ! SDRAM initialization
182 mov.l SDCR_A, r1 ! SB_SDCR address -> R1
183 mov.l SDCR_D, r0 ! SB_SDCR data -> R0
184 mov.l r0, @r1 ! SB_SDCR set
186 mov.l SDWCR_A, r1 ! SB_SDWCR address -> R1
187 mov.l SDWCR_D, r0 ! SB_SDWCR data -> R0
188 mov.l r0, @r1 ! SB_SDWCR set
190 mov.l SDPCR_A, r1 ! SB_SDPCR address -> R1
191 mov.l SDPCR_D, r0 ! SB_SDPCR data -> R0
192 mov.l r0, @r1 ! SB_SDPCR set
194 mov.l RTCOR_A, r1 ! SB_RTCOR address -> R1
195 mov.l RTCOR_D, r0 ! SB_RTCOR data -> R0
196 mov.l r0, @r1 ! SB_RTCOR set
198 mov.l RTCSR_A, r1 ! SB_RTCSR address -> R1
199 mov.l RTCSR_D, r0 ! SB_RTCSR data -> R0
200 mov.l r0, @r1 ! SB_RTCSR set
202 mov.l SDMR3_A, r1 ! SDMR3 address -> R1
203 mov #0x00, r0 ! SDMR3 data -> R0
204 mov.b r0, @r1 ! SDMR3 set
206 ! BL bit off (init = ON) (?!?)
208 stc sr, r0 ! BL bit off(init=ON)
220 MSTPCR0_A: .long MSTPCR0
221 MSTPCR2_A: .long MSTPCR2
224 RWTCSR_A: .long RWTCSR
225 RWTCNT_A: .long RWTCNT
228 CCR_D: .long 0x00000800
229 CCR_D_2: .long 0x00000103
230 MMUCR_D: .long 0x00000004
231 MSTPCR0_D: .long 0x00001001
232 MSTPCR2_D: .long 0xffffffff
233 FRQCR_D: .long 0x07022538
235 PSELA_A: .long 0xa405014E
236 PSELA_D: .word 0x0A10
239 DRVCR_A: .long 0xa405018A
240 DRVCR_D: .word 0x0554
243 PCCR_A: .long 0xa4050104
247 PECR_A: .long 0xa4050108
251 PJCR_A: .long 0xa4050110
255 PXCR_A: .long 0xa4050148
260 CMNCR_D: .long 0x00000013
261 CS0BCR_A: .long CS0BCR ! Flash bank 1
262 CS0BCR_D: .long 0x24920400
263 CS2BCR_A: .long CS2BCR ! SRAM
264 CS2BCR_D: .long 0x24920400
265 CS4BCR_A: .long CS4BCR ! FPGA, PCMCIA, USB, ext slot
266 CS4BCR_D: .long 0x24920400
267 CS5ABCR_A: .long CS5ABCR ! Ext slot
268 CS5ABCR_D: .long 0x24920400
269 CS5BBCR_A: .long CS5BBCR ! USB controller
270 CS5BBCR_D: .long 0x24920400
271 CS6ABCR_A: .long CS6ABCR ! Ethernet
272 CS6ABCR_D: .long 0x24920400
274 CS0WCR_A: .long CS0WCR
275 CS0WCR_D: .long 0x00000300
276 CS2WCR_A: .long CS2WCR
277 CS2WCR_D: .long 0x00000300
278 CS4WCR_A: .long CS4WCR
279 CS4WCR_D: .long 0x00000300
280 CS5AWCR_A: .long CS5AWCR
281 CS5AWCR_D: .long 0x00000300
282 CS5BWCR_A: .long CS5BWCR
283 CS5BWCR_D: .long 0x00000300
284 CS6AWCR_A: .long CS6AWCR
285 CS6AWCR_D: .long 0x00000300
287 SDCR_A: .long SBSC_SDCR
288 SDCR_D: .long 0x00020809
289 SDWCR_A: .long SBSC_SDWCR
290 SDWCR_D: .long 0x00164d0d
291 SDPCR_A: .long SBSC_SDPCR
292 SDPCR_D: .long 0x00000087
293 RTCOR_A: .long SBSC_RTCOR
294 RTCOR_D: .long 0xA55A0034
295 RTCSR_A: .long SBSC_RTCSR
296 RTCSR_D: .long 0xA55A0010
297 SDMR3_A: .long 0xFE500180
301 SBSCR_D: .word 0x0040
303 RWTCSR_D_1: .word 0xA507
304 RWTCSR_D_2: .word 0xA507
305 RWTCNT_D: .word 0x5A00
308 SR_MASK_D: .long 0xEFFFFF0F