| Phil Edworthy | 2b3228d | 2011-06-01 07:35:13 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 Renesas Electronics Europe Ltd. |
| 3 | * Copyright (C) 2008 Renesas Solutions Corp. |
| 4 | * Copyright (C) 2008 Nobuhiro Iwamatsu |
| 5 | * |
| 6 | * Based on board/renesas/rsk7203/lowlevel_init.S |
| 7 | * |
| Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 8 | * SPDX-License-Identifier: GPL-2.0+ |
| Phil Edworthy | 2b3228d | 2011-06-01 07:35:13 +0100 | [diff] [blame] | 9 | */ |
| 10 | #include <config.h> |
| Phil Edworthy | 2b3228d | 2011-06-01 07:35:13 +0100 | [diff] [blame] | 11 | |
| 12 | #include <asm/processor.h> |
| 13 | #include <asm/macro.h> |
| 14 | |
| 15 | .global lowlevel_init |
| 16 | |
| 17 | .text |
| 18 | .align 2 |
| 19 | |
| 20 | lowlevel_init: |
| 21 | /* Cache setting */ |
| 22 | write32 CCR1_A ,CCR1_D |
| 23 | |
| 24 | /* io_set_cpg */ |
| 25 | write8 STBCR3_A, STBCR3_D |
| 26 | write8 STBCR4_A, STBCR4_D |
| 27 | write8 STBCR5_A, STBCR5_D |
| 28 | write8 STBCR6_A, STBCR6_D |
| 29 | write8 STBCR7_A, STBCR7_D |
| 30 | write8 STBCR8_A, STBCR8_D |
| 31 | |
| 32 | /* ConfigurePortPins */ |
| 33 | |
| 34 | /* Leaving LED1 ON for sanity test */ |
| 35 | write16 PJCR1_A, PJCR1_D1 |
| 36 | write16 PJCR2_A, PJCR2_D |
| 37 | write16 PJIOR0_A, PJIOR0_D1 |
| 38 | write16 PJDR0_A, PJDR0_D |
| 39 | write16 PJPR0_A, PJPR0_D |
| 40 | |
| 41 | /* Configure EN_PIN & RS_PIN */ |
| 42 | write16 PGCR2_A, PGCR2_D |
| 43 | write16 PGIOR0_A, PGIOR0_D |
| 44 | |
| 45 | /* Configure the port pins connected to UART */ |
| 46 | write16 PJCR1_A, PJCR1_D2 |
| 47 | write16 PJIOR0_A, PJIOR0_D2 |
| 48 | |
| 49 | /* Configure Operating Frequency */ |
| 50 | write16 WTCSR_A, WTCSR_D0 |
| 51 | write16 WTCSR_A, WTCSR_D1 |
| 52 | write16 WTCNT_A, WTCNT_D |
| 53 | |
| 54 | /* Control of RESBANK */ |
| 55 | write16 IBNR_A, IBNR_D |
| 56 | /* Enable SCIF3 module */ |
| 57 | write16 STBCR4_A, STBCR4_D |
| 58 | |
| 59 | /* Set clock mode*/ |
| 60 | write16 FRQCR_A, FRQCR_D |
| 61 | |
| 62 | /* Configure Bus And Memory */ |
| 63 | init_bsc_cs0: |
| 64 | |
| 65 | pfc_settings: |
| 66 | write16 PCCR2_A, PCCR2_D |
| 67 | write16 PCCR1_A, PCCR1_D |
| 68 | write16 PCCR0_A, PCCR0_D |
| 69 | |
| 70 | write16 PBCR0_A, PBCR0_D |
| 71 | write16 PBCR1_A, PBCR1_D |
| 72 | write16 PBCR2_A, PBCR2_D |
| 73 | write16 PBCR3_A, PBCR3_D |
| 74 | write16 PBCR4_A, PBCR4_D |
| 75 | write16 PBCR5_A, PBCR5_D |
| 76 | |
| 77 | write16 PDCR0_A, PDCR0_D |
| 78 | write16 PDCR1_A, PDCR1_D |
| 79 | write16 PDCR2_A, PDCR2_D |
| 80 | write16 PDCR3_A, PDCR3_D |
| 81 | |
| 82 | write32 CS0WCR_A, CS0WCR_D |
| 83 | write32 CS0BCR_A, CS0BCR_D |
| 84 | |
| 85 | init_bsc_cs2: |
| 86 | write16 PJCR0_A, PJCR0_D |
| 87 | write32 CS2WCR_A, CS2WCR_D |
| 88 | |
| 89 | init_sdram: |
| 90 | write32 CS3BCR_A, CS3BCR_D |
| 91 | write32 CS3WCR_A, CS3WCR_D |
| 92 | write32 SDCR_A, SDCR_D |
| 93 | write32 RTCOR_A, RTCOR_D |
| 94 | write32 RTCSR_A, RTCSR_D |
| 95 | |
| 96 | /* wait 200us */ |
| 97 | mov.l REPEAT_D, r3 |
| 98 | mov #0, r2 |
| 99 | repeat0: |
| 100 | add #1, r2 |
| 101 | cmp/hs r3, r2 |
| 102 | bf repeat0 |
| 103 | nop |
| 104 | |
| 105 | mov.l SDRAM_MODE, r1 |
| 106 | mov #0, r0 |
| 107 | mov.l r0, @r1 |
| 108 | |
| 109 | nop |
| 110 | rts |
| 111 | |
| 112 | .align 4 |
| 113 | |
| 114 | CCR1_A: .long CCR1 |
| 115 | CCR1_D: .long 0x0000090B |
| 116 | FRQCR_A: .long 0xFFFE0010 |
| 117 | FRQCR_D: .word 0x1003 |
| 118 | .align 2 |
| 119 | STBCR3_A: .long 0xFFFE0408 |
| 120 | STBCR3_D: .long 0x00000002 |
| 121 | STBCR4_A: .long 0xFFFE040C |
| 122 | STBCR4_D: .word 0x0000 |
| 123 | .align 2 |
| 124 | STBCR5_A: .long 0xFFFE0410 |
| 125 | STBCR5_D: .long 0x00000010 |
| 126 | STBCR6_A: .long 0xFFFE0414 |
| 127 | STBCR6_D: .long 0x00000002 |
| 128 | STBCR7_A: .long 0xFFFE0418 |
| 129 | STBCR7_D: .long 0x0000002A |
| 130 | STBCR8_A: .long 0xFFFE041C |
| 131 | STBCR8_D: .long 0x0000007E |
| 132 | PJCR1_A: .long 0xFFFE390C |
| 133 | PJCR1_D1: .word 0x0000 |
| 134 | PJCR1_D2: .word 0x0022 |
| 135 | PJCR2_A: .long 0xFFFE390A |
| 136 | PJCR2_D: .word 0x0000 |
| 137 | .align 2 |
| 138 | PJIOR0_A: .long 0xFFFE3912 |
| 139 | PJIOR0_D1: .word 0x0FC0 |
| 140 | PJIOR0_D2: .word 0x0FE0 |
| 141 | PJDR0_A: .long 0xFFFE3916 |
| 142 | PJDR0_D: .word 0x0FBF |
| 143 | .align 2 |
| 144 | PJPR0_A: .long 0xFFFE391A |
| 145 | PJPR0_D: .long 0x00000FBF |
| 146 | PGCR2_A: .long 0xFFFE38CA |
| 147 | PGCR2_D: .word 0x0000 |
| 148 | .align 2 |
| 149 | PGIOR0_A: .long 0xFFFE38D2 |
| 150 | PGIOR0_D: .word 0x03F0 |
| 151 | .align 2 |
| 152 | WTCSR_A: .long 0xFFFE0000 |
| 153 | WTCSR_D0: .word 0x0000 |
| 154 | WTCSR_D1: .word 0x0000 |
| 155 | WTCNT_A: .long 0xFFFE0002 |
| 156 | WTCNT_D: .word 0x0000 |
| 157 | .align 2 |
| 158 | PCCR0_A: .long 0xFFFE384E |
| 159 | PDCR0_A: .long 0xFFFE386E |
| 160 | PDCR1_A: .long 0xFFFE386C |
| 161 | PDCR2_A: .long 0xFFFE386A |
| 162 | PDCR3_A: .long 0xFFFE3868 |
| 163 | PBCR0_A: .long 0xFFFE382E |
| 164 | PBCR1_A: .long 0xFFFE382C |
| 165 | PBCR2_A: .long 0xFFFE382A |
| 166 | PBCR3_A: .long 0xFFFE3828 |
| 167 | PBCR4_A: .long 0xFFFE3826 |
| 168 | PBCR5_A: .long 0xFFFE3824 |
| 169 | PCCR0_D: .word 0x1111 |
| 170 | PDCR0_D: .word 0x1111 |
| 171 | PDCR1_D: .word 0x1111 |
| 172 | PDCR2_D: .word 0x1111 |
| 173 | PDCR3_D: .word 0x1111 |
| 174 | PBCR0_D: .word 0x1110 |
| 175 | PBCR1_D: .word 0x1111 |
| 176 | PBCR2_D: .word 0x1111 |
| 177 | PBCR3_D: .word 0x1111 |
| 178 | PBCR4_D: .word 0x1111 |
| 179 | PBCR5_D: .word 0x0111 |
| 180 | .align 2 |
| 181 | CS0WCR_A: .long 0xFFFC0028 |
| 182 | CS0WCR_D: .long 0x00000B41 |
| 183 | CS0BCR_A: .long 0xFFFC0004 |
| 184 | CS0BCR_D: .long 0x10000400 |
| 185 | PJCR0_A: .long 0xFFFE390E |
| Phil Edworthy | 4b50deb | 2012-04-10 00:47:56 +0000 | [diff] [blame] | 186 | PJCR0_D: .word 0x3300 |
| Phil Edworthy | 2b3228d | 2011-06-01 07:35:13 +0100 | [diff] [blame] | 187 | .align 2 |
| 188 | CS2WCR_A: .long 0xFFFC0030 |
| 189 | CS2WCR_D: .long 0x00000B01 |
| 190 | PCCR2_A: .long 0xFFFE384A |
| 191 | PCCR2_D: .word 0x0001 |
| 192 | .align 2 |
| 193 | PCCR1_A: .long 0xFFFE384C |
| 194 | PCCR1_D: .word 0x1111 |
| 195 | .align 2 |
| 196 | CS3BCR_A: .long 0xFFFC0010 |
| 197 | CS3BCR_D: .long 0x00004400 |
| 198 | CS3WCR_A: .long 0xFFFC0034 |
| 199 | CS3WCR_D: .long 0x0000288A |
| 200 | SDCR_A: .long 0xFFFC004C |
| 201 | SDCR_D: .long 0x00000812 |
| 202 | RTCOR_A: .long 0xFFFC0058 |
| 203 | RTCOR_D: .long 0xA55A0046 |
| 204 | RTCSR_A: .long 0xFFFC0050 |
| 205 | RTCSR_D: .long 0xA55A0010 |
| 206 | IBNR_A: .long 0xFFFE080E |
| 207 | IBNR_D: .word 0x0000 |
| 208 | .align 2 |
| 209 | SDRAM_MODE: .long 0xFFFC5040 |
| 210 | REPEAT_D: .long 0x00000085 |