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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / b259732d36ccdc911e5b3ed83bd55aae90a43532 / . / board / renesas / sh7763rdp / lowlevel_init.S
blob: e8e3d6fae396fb3013bf335207a15a7b1a1c4ab1 [file] [log] [blame]
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]1/*
2 * Copyright (C) 2008 Renesas Solutions Corp.
3 * Copyright (C) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
4 * Copyright (C) 2007 Kenati Technologies, Inc.
5 *
6 * board/sh7763rdp/lowlevel_init.S
7 *
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]8 * SPDX-License-Identifier: GPL-2.0+
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]9 */
10
11#include <config.h>
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]12
13#include <asm/processor.h>
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]14#include <asm/macro.h>
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]15
16 .global lowlevel_init
17
18 .text
19 .align 2
20
21lowlevel_init:
22
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]23 write32 WDTCSR_A, WDTCSR_D /* Watchdog Control / Status Register */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]24
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]25 write32 WDTST_A, WDTST_D /* Watchdog Stop Time Register */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]26
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]27 write32 WDTBST_A, WDTBST_D /*
28 * 0xFFCC0008
29 * Watchdog Base Stop Time Register
30 */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]31
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]32 write32 CCR_A, CCR_CACHE_ICI_D /* Address of Cache Control Register */
33 /* Instruction Cache Invalidate */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]34
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]35 write32 MMUCR_A, MMU_CONTROL_TI_D /* MMU Control Register */
36 /* TI == TLB Invalidate bit */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]37
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]38 write32 MSTPCR0_A, MSTPCR0_D /* Address of Power Control Register 0 */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]39
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]40 write32 MSTPCR1_A, MSTPCR1_D /* Address of Power Control Register 1 */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]41
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]42 write32 RAMCR_A, RAMCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]43
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]44 mov.l MMSELR_A, r1
45 mov.l MMSELR_D, r0
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]46 synco
47 mov.l r0, @r1
48
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]49 mov.l @r1, r2 /* execute two reads after setting MMSELR */
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]50 mov.l @r1, r2
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]51 synco
52
53 /* issue memory read */
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]54 mov.l DDRSD_START_A, r1 /* memory address to read*/
55 mov.l @r1, r0
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]56 synco
57
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]58 write32 MIM8_A, MIM8_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]59
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]60 write32 MIMC_A, MIMC_D1
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]61
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]62 write32 STRC_A, STRC_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]63
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]64 write32 SDR4_A, SDR4_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]65
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]66 write32 MIMC_A, MIMC_D2
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]67
68 nop
69 nop
70 nop
71
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]72 write32 SCR4_A, SCR4_D3
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]73
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]74 write32 SCR4_A, SCR4_D2
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]75
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]76 write32 SDMR02000_A, SDMR02000_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]77
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]78 write32 SDMR00B08_A, SDMR00B08_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]79
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]80 write32 SCR4_A, SCR4_D2
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]81
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]82 write32 SCR4_A, SCR4_D4
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]83
84 nop
85 nop
86 nop
87 nop
88
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]89 write32 SCR4_A, SCR4_D4
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]90
91 nop
92 nop
93 nop
94 nop
95
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]96 write32 SDMR00308_A, SDMR00308_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]97
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]98 write32 MIMC_A, MIMC_D3
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]99
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]100 mov.l SCR4_A, r1
101 mov.l SCR4_D1, r0
102 mov.l DELAY60_D, r3
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]103
104delay_loop_60:
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]105 mov.l r0, @r1
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]106 dt r3
107 bf delay_loop_60
108 nop
109
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]110 write32 CCR_A, CCR_CACHE_D_2 /* Address of Cache Control Register */
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]111
112bsc_init:
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]113 write32 BCR_A, BCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]114
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]115 write32 CS0BCR_A, CS0BCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]116
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]117 write32 CS1BCR_A, CS1BCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]118
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]119 write32 CS2BCR_A, CS2BCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]120
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]121 write32 CS4BCR_A, CS4BCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]122
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]123 write32 CS5BCR_A, CS5BCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]124
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]125 write32 CS6BCR_A, CS6BCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]126
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]127 write32 CS0WCR_A, CS0WCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]128
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]129 write32 CS1WCR_A, CS1WCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]130
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]131 write32 CS2WCR_A, CS2WCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]132
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]133 write32 CS4WCR_A, CS4WCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]134
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]135 write32 CS5WCR_A, CS5WCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]136
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]137 write32 CS6WCR_A, CS6WCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]138
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]139 write32 CS5PCR_A, CS5PCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]140
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]141 write32 CS6PCR_A, CS6PCR_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]142
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]143 mov.l DELAY200_D, r3
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]144
145delay_loop_200:
146 dt r3
147 bf delay_loop_200
148 nop
149
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]150 write16 PSEL0_A, PSEL0_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]151
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]152 write16 PSEL1_A, PSEL1_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]153
Jean-Christophe PLAGNIOL-VILLARDf7e78f32008-12-20 19:29:49 +0100[diff] [blame]154 write32 ICR0_A, ICR0_D
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]155
156 stc sr, r0 /* BL bit off(init=ON) */
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]157 mov.l SR_MASK_D, r1
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]158 and r1, r0
159 ldc r0, sr
160
161 rts
162 nop
163
164 .align 2
165
166DELAY60_D: .long 60
167DELAY200_D: .long 17800
168
169CCR_A: .long 0xFF00001C
170MMUCR_A: .long 0xFF000010
171RAMCR_A: .long 0xFF000074
172
173/* Low power mode control */
174MSTPCR0_A: .long 0xFFC80030
175MSTPCR1_A: .long 0xFFC80038
176
177/* RWBT */
178WDTST_A: .long 0xFFCC0000
179WDTCSR_A: .long 0xFFCC0004
180WDTBST_A: .long 0xFFCC0008
181
182/* BSC */
183MMSELR_A: .long 0xFE600020
184BCR_A: .long 0xFF801000
185CS0BCR_A: .long 0xFF802000
186CS1BCR_A: .long 0xFF802010
187CS2BCR_A: .long 0xFF802020
188CS4BCR_A: .long 0xFF802040
189CS5BCR_A: .long 0xFF802050
190CS6BCR_A: .long 0xFF802060
191CS0WCR_A: .long 0xFF802008
192CS1WCR_A: .long 0xFF802018
193CS2WCR_A: .long 0xFF802028
194CS4WCR_A: .long 0xFF802048
195CS5WCR_A: .long 0xFF802058
196CS6WCR_A: .long 0xFF802068
197CS5PCR_A: .long 0xFF802070
198CS6PCR_A: .long 0xFF802080
199DDRSD_START_A: .long 0xAC000000
200
201/* INTC */
202ICR0_A: .long 0xFFD00000
203
204/* DDR I/F */
205MIM8_A: .long 0xFE800008
206MIMC_A: .long 0xFE80000C
207SCR4_A: .long 0xFE800014
208STRC_A: .long 0xFE80001C
209SDR4_A: .long 0xFE800034
210SDMR00308_A: .long 0xFE900308
211SDMR00B08_A: .long 0xFE900B08
212SDMR02000_A: .long 0xFE902000
213
214/* GPIO */
215PSEL0_A: .long 0xFFEF0070
216PSEL1_A: .long 0xFFEF0072
217
218CCR_CACHE_ICI_D:.long 0x00000800
219CCR_CACHE_D_2: .long 0x00000103
220MMU_CONTROL_TI_D:.long 0x00000004
221RAMCR_D: .long 0x00000200
222MSTPCR0_D: .long 0x00000000
223MSTPCR1_D: .long 0x00000000
224
225MMSELR_D: .long 0xa5a50000
226BCR_D: .long 0x00000000
227CS0BCR_D: .long 0x77777770
228CS1BCR_D: .long 0x77777670
229CS2BCR_D: .long 0x77777670
230CS4BCR_D: .long 0x77777670
231CS5BCR_D: .long 0x77777670
232CS6BCR_D: .long 0x77777670
233CS0WCR_D: .long 0x7777770F
Jean-Christophe PLAGNIOL-VILLARDe4430772008-12-20 19:29:48 +0100[diff] [blame]234CS1WCR_D: .long 0x22000002
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]235CS2WCR_D: .long 0x7777770F
236CS4WCR_D: .long 0x7777770F
237CS5WCR_D: .long 0x7777770F
238CS6WCR_D: .long 0x7777770F
239CS5PCR_D: .long 0x77000000
240CS6PCR_D: .long 0x77000000
241ICR0_D: .long 0x00E00000
242MIM8_D: .long 0x00000000
243MIMC_D1: .long 0x01d10008
244MIMC_D2: .long 0x01d10009
245MIMC_D3: .long 0x01d10209
246SCR4_D1: .long 0x00000001
247SCR4_D2: .long 0x00000002
248SCR4_D3: .long 0x00000003
249SCR4_D4: .long 0x00000004
250STRC_D: .long 0x000f3980
251SDR4_D: .long 0x00000300
252SDMR00308_D: .long 0x00000000
253SDMR00B08_D: .long 0x00000000
254SDMR02000_D: .long 0x00000000
Nobuhiro Iwamatsu31067322010-07-22 15:29:10 +0900[diff] [blame]255PSEL0_D: .word 0x00000001
256PSEL1_D: .word 0x00000244
Nobuhiro Iwamatsu7faddae2008-06-09 13:39:57 +0900[diff] [blame]257SR_MASK_D: .long 0xEFFFFF0F
258WDTST_D: .long 0x5A000FFF
259WDTCSR_D: .long 0xA5000000
260WDTBST_D: .long 0x55000000