1/* 2 * Copyright (C) 2009 Renesas Solutions Corp. 3 * Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> 4 * 5 * board/espt/lowlevel_init.S 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10#include <config.h> 11#include <version.h> 12#include <asm/processor.h> 13#include <asm/macro.h> 14 15 .global lowlevel_init 16 17 .text 18 .align 2 19 20lowlevel_init: 21 22 write32 WDTCSR_A, WDTCSR_D 23 24 write32 WDTST_A, WDTST_D 25 26 write32 WDTBST_A, WDTBST_D 27 28 write32 CCR_A, CCR_CACHE_ICI_D 29 30 write32 MMUCR_A, MMU_CONTROL_TI_D 31 32 write32 MSTPCR0_A, MSTPCR0_D 33 34 write32 MSTPCR1_A, MSTPCR1_D 35 36 write32 RAMCR_A, RAMCR_D 37 38 /* 39 * Setting infomation from 40 * original ESPT-GIGA bootloader register 41 */ 42 write32 MMSEL_A, MMSEL_D 43 44 /* dummy */ 45 mov.l @r1, r2 46 mov.l @r1, r2 47 synco 48 49 write32 BCR_A, BCR_D 50 51 write32 CS0BCR_A, CS0BCR_D 52 53 write32 CS0WCR_A, CS0WCR_D 54 55 /* 56 * DDR-SDRAM setting 57 */ 58 59 /* set DDR-SDRAM dummy read */ 60 write32 MMSEL_A, MMSEL_D 61 62 write32 MMSEL_A, CS0_A 63 64 /* set DDR-SDRAM bus/endian etc */ 65 write32 MIM_U_A, MIM_U_D 66 67 write32 MIM_L_A, MIM_L_D0 68 69 write32 SDR_L_A, SDR_L_A_D0 70 71 write32 STR_L_A, STR_L_A_D0 72 73 /* DDR-SDRAM access control */ 74 write32 MIM_L_A, MIM_L_D1 75 76 write32 SCR_L_A, SCR_L_A_D0 77 78 write32 SCR_L_A, SCR_L_A_D1 79 80 write32 EMRS_A, EMRS_D 81 82 write32 MRS1_A, MRS1_D 83 84 write32 MIM_U_A, MIM_U_D 85 86 write32 MIM_L_A, MIM_L_A_D2 87 88 write32 SCR_L_A, SCR_L_A_D2 89 90 write32 SCR_L_A, SCR_L_A_D2 91 92 write32 MRS2_A, MRS2_D 93 94 /* wait 200us */ 95 wait_timer REPEAT_R3 96 97 /* GPIO setting */ 98 write16 PSEL0_A, PSEL0_D 99 100 write16 PSEL1_A, PSEL1_D 101 102 write16 PSEL2_A, PSEL2_D 103 104 write16 PSEL3_A, PSEL3_D 105 106 write16 PSEL4_A, PSEL4_D 107 108 write8 PADR_A, PADR_D 109 110 write16 PACR_A, PACR_D 111 112 write8 PBDR_A, PBDR_D 113 114 write16 PBCR_A, PBCR_D 115 116 write8 PCDR_A, PCDR_D 117 118 write16 PCCR_A, PCCR_D 119 120 write8 PDDR_A, PDDR_D 121 122 write16 PDCR_A, PDCR_D 123 124 write16 PECR_A, PECR_D 125 126 write16 PFCR_A, PFCR_D 127 128 write16 PGCR_A, PGCR_D 129 130 write16 PHCR_A, PHCR_D 131 132 write16 PICR_A, PICR_D 133 134 write8 PJDR_A, PJDR_D 135 136 write16 PJCR_A, PJCR_D 137 138 /* wait 50us */ 139 wait_timer REPEAT_R3 140 141 write8 PKDR_A, PKDR_D 142 143 write16 PKCR_A, PKCR_D 144 145 write16 PLCR_A, PLCR_D 146 147 write16 PMCR_A, PMCR_D 148 149 write16 PNCR_A, PNCR_D 150 151 write16 POCR_A, POCR_D 152 153 154 /* ICR0 ,ICR1 */ 155 write32 ICR0_A, ICR0_D 156 157 write32 ICR1_A, ICR1_D 158 159 /* USB Host */ 160 write32 USB_USBHSC_A, USB_USBHSC_D 161 162 write32 CCR_A, CCR_CACHE_D_2 163 164 rts 165 nop 166 167 .align 2 168 169/* GPIO Crontrol Register */ 170PACR_A: .long 0xFFEF0000 171PBCR_A: .long 0xFFEF0002 172PCCR_A: .long 0xFFEF0004 173PDCR_A: .long 0xFFEF0006 174PECR_A: .long 0xFFEF0008 175PFCR_A: .long 0xFFEF000A 176PGCR_A: .long 0xFFEF000C 177PHCR_A: .long 0xFFEF000E 178PICR_A: .long 0xFFEF0010 179PJCR_A: .long 0xFFEF0012 180PKCR_A: .long 0xFFEF0014 181PLCR_A: .long 0xFFEF0016 182PMCR_A: .long 0xFFEF0018 183PNCR_A: .long 0xFFEF001A 184POCR_A: .long 0xFFEF001C 185 186/* GPIO Data Register */ 187PADR_A: .long 0xFFEF0020 188PBDR_A: .long 0xFFEF0022 189PCDR_A: .long 0xFFEF0024 190PDDR_A: .long 0xFFEF0026 191PJDR_A: .long 0xFFEF0032 192PKDR_A: .long 0xFFEF0034 193 194/* GPIO Set data */ 195PADR_D: .long 0x00000000 196PACR_D: .word 0x1400 197.align 2 198PBDR_D: .long 0x00000000 199PBCR_D: .word 0x555A 200.align 2 201PCDR_D: .long 0x00000000 202PCCR_D: .word 0x5555 203.align 2 204PDDR_D: .long 0x00000000 205PDCR_D: .word 0x0155 206PECR_D: .word 0x0000 207PFCR_D: .word 0x0000 208PGCR_D: .word 0x0000 209PHCR_D: .word 0x0000 210PICR_D: .word 0x0800 211PJDR_D: .long 0x00000006 212PJCR_D: .word 0x5A57 213.align 2 214PKDR_D: .long 0x00000000 215PKCR_D: .word 0xFFF9 216.align 2 217PLCR_D: .word 0xC330 218PMCR_D: .word 0xFFFF 219PNCR_D: .word 0x0242 220POCR_D: .word 0x0000 221 222/* Pin Select */ 223PSEL0_A: .long 0xFFEF0070 224PSEL1_A: .long 0xFFEF0072 225PSEL2_A: .long 0xFFEF0074 226PSEL3_A: .long 0xFFEF0076 227PSEL4_A: .long 0xFFEF0078 228PSEL0_D: .word 0x0001 229PSEL1_D: .word 0x2400 230PSEL2_D: .word 0x0000 231PSEL3_D: .word 0x2421 232PSEL4_D: .word 0x0000 233.align 2 234 235MMSEL_A: .long 0xFE600020 236BCR_A: .long 0xFF801000 237CS0BCR_A: .long 0xFF802000 238CS0WCR_A: .long 0xFF802008 239ICR0_A: .long 0xFFD00000 240ICR1_A: .long 0xFFD0001C 241 242MMSEL_D: .long 0xA5A50000 243BCR_D: .long 0x05000000 244CS0BCR_D: .long 0x232306F0 245CS0WCR_D: .long 0x00011104 246ICR0_D: .long 0x80C00000 247ICR1_D: .long 0x00020000 248 249/* RWBT Address */ 250WDTST_A: .long 0xFFCC0000 251WDTCSR_A: .long 0xFFCC0004 252WDTBST_A: .long 0xFFCC0008 253/* RWBT Data */ 254WDTST_D: .long 0x5A000FFF 255WDTCSR_D: .long 0xA5000000 256WDTBST_D: .long 0x55000000 257 258/* Cache Address */ 259CCR_A: .long 0xFF00001C 260MMUCR_A: .long 0xFF000010 261RAMCR_A: .long 0xFF000074 262 263/* Cache Data */ 264CCR_CACHE_ICI_D:.long 0x00000800 265CCR_CACHE_D_2: .long 0x00000103 266MMU_CONTROL_TI_D:.long 0x00000004 267RAMCR_D: .long 0x00000200 268 269/* Low power mode control Address */ 270MSTPCR0_A: .long 0xFFC80030 271MSTPCR1_A: .long 0xFFC80038 272/* Low power mode control Data */ 273MSTPCR0_D: .long 0x00000000 274MSTPCR1_D: .long 0x00000000 275 276REPEAT0_R3: .long 0x00002000 277REPEAT_R3: .long 0x00000200 278CS0_A: .long 0xA8000000 279 280MIM_U_A: .long 0xFE800008 281MIM_L_A: .long 0xFE80000C 282SCR_U_A: .long 0xFE800010 283SCR_L_A: .long 0xFE800014 284STR_U_A: .long 0xFE800018 285STR_L_A: .long 0xFE80001C 286SDR_U_A: .long 0xFE800030 287SDR_L_A: .long 0xFE800034 288EMRS_A: .long 0xFE902000 289MRS1_A: .long 0xFE900B08 290MRS2_A: .long 0xFE900308 291 292MIM_U_D: .long 0x00000000 293MIM_L_D0: .long 0x04100008 294MIM_L_D1: .long 0x02EE0009 295MIM_L_D2: .long 0x02EE0209 296 297SDR_L_A_D0: .long 0x00000300 298STR_L_A_D0: .long 0x00010040 299MIM_L_A_D1: .long 0x04100009 300SCR_L_A_D0: .long 0x00000003 301SCR_L_A_D1: .long 0x00000002 302MIM_L_A_D2: .long 0x04100209 303SCR_L_A_D2: .long 0x00000004 304 305SCR_L_NORMAL: .long 0x00000000 306SCR_L_NOP: .long 0x00000001 307SCR_L_PALL: .long 0x00000002 308SCR_L_CKE_EN: .long 0x00000003 309SCR_L_CBR: .long 0x00000004 310 311STR_L_D: .long 0x000F3980 312SDR_L_D: .long 0x00000400 313EMRS_D: .long 0x00000000 314MRS1_D: .long 0x00000000 315MRS2_D: .long 0x00000000 316 317/* USB */ 318USB_USBHSC_A: .long 0xFFEC80F0 319USB_USBHSC_D: .long 0x00000000 320