sh_arch.cpp revision 1.1.2.2
1 /* $NetBSD: sh_arch.cpp,v 1.1.2.2 2001/02/11 19:10:12 bouyer Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sh3/sh_arch.h> 40 #include "scifreg.h" 41 42 struct SHArchitecture::intr_priority SHArchitecture::ipr_table[] = { 43 { "TMU0", ICU_IPRA_REG16, 12 }, 44 { "TMU1", ICU_IPRA_REG16, 8 }, 45 { "TMU2", ICU_IPRA_REG16, 4 }, 46 { "RTC", ICU_IPRA_REG16, 0 }, 47 { "WDT", ICU_IPRB_REG16, 12 }, 48 { "REF", ICU_IPRB_REG16, 8 }, 49 { "SCI", ICU_IPRB_REG16, 4 }, 50 { "reserve", ICU_IPRB_REG16, 0 }, 51 { "IRQ3", ICU_IPRC_REG16, 12 }, 52 { "IRQ2", ICU_IPRC_REG16, 8 }, 53 { "IRQ1", ICU_IPRC_REG16, 4 }, 54 { "IRQ0", ICU_IPRC_REG16, 0 }, 55 { "PINT0-7", ICU_IPRD_REG16, 12 }, 56 { "PINT8-15", ICU_IPRD_REG16, 8 }, 57 { "IRQ5", ICU_IPRD_REG16, 4 }, 58 { "IRQ4", ICU_IPRD_REG16, 0 }, 59 { "DMAC", ICU_IPRE_REG16, 12 }, 60 { "IrDA", ICU_IPRE_REG16, 8 }, 61 { "SCIF", ICU_IPRE_REG16, 4 }, 62 { "ADC", ICU_IPRE_REG16, 0 }, 63 { 0, 0, 0} /* terminator */ 64 }; 65 66 BOOL 67 SHArchitecture::init(void) 68 { 69 if (!_mem->init()) { 70 DPRINTF((TEXT("can't initialize memory manager.\n"))); 71 return FALSE; 72 } 73 // set D-RAM information 74 _mem->loadBank(DRAM_BANK0_START, DRAM_BANK_SIZE); 75 _mem->loadBank(DRAM_BANK1_START, DRAM_BANK_SIZE); 76 77 return TRUE; 78 } 79 80 BOOL 81 SHArchitecture::setupLoader() 82 { 83 vaddr_t v; 84 85 if (!_mem->getPage(v , _loader_addr)) { 86 DPRINTF((TEXT("can't get page for 2nd loader.\n"))); 87 return FALSE; 88 } 89 DPRINTF((TEXT("2nd bootloader vaddr=0x%08x paddr=0x%08x\n"), 90 (unsigned)v,(unsigned)_loader_addr)); 91 92 memcpy(LPVOID(v), LPVOID(_boot_func), _mem->getPageSize()); 93 DPRINTF((TEXT("2nd bootloader copy done.\n"))); 94 95 return TRUE; 96 } 97 98 void 99 SHArchitecture::jump(paddr_t info, paddr_t pvec) 100 { 101 kaddr_t sp; 102 vaddr_t v; 103 paddr_t p; 104 105 // stack for bootloader 106 _mem->getPage(v, p); 107 sp = ptokv(p + _mem->getPageSize() / 2); 108 109 info = ptokv(info); 110 pvec = ptokv(pvec); 111 _loader_addr = ptokv(_loader_addr); 112 DPRINTF((TEXT("BootArgs 0x%08x Stack 0x%08x\nBooting kernel...\n"), 113 info, sp)); 114 115 // Change to privilege-mode. 116 SetKMode(1); 117 118 // Disable external interrupt. 119 suspendIntr(); 120 121 // Cache flush(for 2nd bootloader) 122 cache_flush(); 123 124 // jump to 2nd loader.(run P1) at this time I still use MMU. 125 __asm("mov r6, r15\n" 126 "jmp @r7\n" 127 "nop\n", info, pvec, sp, _loader_addr); 128 // NOTREACHED 129 } 130 131 // disable external interrupt and save its priority. 132 u_int32_t 133 suspendIntr(void) 134 { 135 u_int32_t sr; 136 __asm("stc sr, r0\n" 137 "mov.l r0, @r4\n" 138 "or r5, r0\n" 139 "ldc r0, sr\n", &sr, 0x000000f0); 140 return sr & 0x000000f0; 141 } 142 143 // resume external interrupt priority. 144 void 145 resumeIntr(u_int32_t s) 146 { 147 __asm("stc sr, r0\n" 148 "and r5, r0\n" 149 "or r4, r0\n" 150 "ldc r0, sr\n", s, 0xffffff0f); 151 } 152 153 void 154 SHArchitecture::print_stack_pointer(void) 155 { 156 int sp; 157 __asm("mov.l r15, @r4", &sp); 158 DPRINTF((TEXT("SP 0x%08x\n"), sp)); 159 } 160 161 void 162 SHArchitecture::systemInfo() 163 { 164 u_int32_t reg; 165 166 Architecture::systemInfo(); 167 168 _kmode = SetKMode(1); 169 170 // Cache 171 reg = VOLATILE_REF(CCR); 172 DPRINTF((TEXT("Cache "))); 173 if (reg & CCR_CE) 174 DPRINTF((TEXT("Enabled. %s-mode, P0/U0/P3 Write-%s, P1 Write-%s\n"), 175 reg & CCR_RA ? TEXT("RAM") : TEXT("normal"), 176 reg & CCR_WT ? TEXT("Through") : TEXT("Back"), 177 reg & CCR_CB ? TEXT("Back") : TEXT("Through"))); 178 else 179 DPRINTF((TEXT("Disabled.\n"))); 180 181 // MMU 182 reg = VOLATILE_REF(MMUCR); 183 DPRINTF((TEXT("MMU "))); 184 if (reg & MMUCR_AT) 185 DPRINTF((TEXT("Enabled. %s index-mode, %s virtual storage mode\n"), 186 reg & MMUCR_IX 187 ? TEXT("ASID + VPN") : TEXT("VPN only"), 188 reg & MMUCR_SV ? TEXT("single") : TEXT("multiple"))); 189 else 190 DPRINTF((TEXT("Disabled.\n"))); 191 192 // Status register 193 reg = 0; 194 __asm("stc sr, r0\n" 195 "mov.l r0, @r4", ®); 196 DPRINTF((TEXT("SR 0x%08x\n"), reg)); 197 198 // SCIF 199 scif_dump(19200); 200 201 // ICU 202 print_stack_pointer(); 203 icu_dump(); 204 205 #if 0 // Frame Buffer (this test is destructive.) 206 hd64461_framebuffer_test(); 207 #endif 208 209 SetKMode(_kmode); 210 } 211 212 void 213 SHArchitecture::icu_dump(void) 214 { 215 print_stack_pointer(); 216 217 DPRINTF((TEXT("ICR0 0x%08x\n"), reg_read16(ICU_ICR0_REG16))); 218 DPRINTF((TEXT("ICR1 0x%08x\n"), reg_read16(ICU_ICR1_REG16))); 219 DPRINTF((TEXT("ICR2 0x%08x\n"), reg_read16(ICU_ICR2_REG16))); 220 DPRINTF((TEXT("PINTER 0x%08x\n"), reg_read16(ICU_PINTER_REG16))); 221 DPRINTF((TEXT("IPRA 0x%08x\n"), reg_read16(ICU_IPRA_REG16))); 222 DPRINTF((TEXT("IPRB 0x%08x\n"), reg_read16(ICU_IPRB_REG16))); 223 DPRINTF((TEXT("IPRC 0x%08x\n"), reg_read16(ICU_IPRC_REG16))); 224 DPRINTF((TEXT("IPRD 0x%08x\n"), reg_read16(ICU_IPRD_REG16))); 225 DPRINTF((TEXT("IPRE 0x%08x\n"), reg_read16(ICU_IPRE_REG16))); 226 DPRINTF((TEXT("IRR0 0x%08x\n"), reg_read8(ICU_IRR0_REG8))); 227 DPRINTF((TEXT("IRR1 0x%08x\n"), reg_read8(ICU_IRR1_REG8))); 228 DPRINTF((TEXT("IRR2 0x%08x\n"), reg_read8(ICU_IRR2_REG8))); 229 icu_control(); 230 icu_priority(); 231 } 232 233 void 234 SHArchitecture::icu_priority(void) 235 { 236 struct intr_priority *tab; 237 DPRINTF((TEXT("----interrupt priority----\n"))); 238 for (tab = ipr_table; tab->name; tab++) { 239 DPRINTF((TEXT("%-10S %d\n"), tab->name, 240 (reg_read16(tab->reg) >> tab->shift) & ICU_IPR_MASK)); 241 } 242 DPRINTF((TEXT("--------------------------\n"))); 243 } 244 245 void 246 SHArchitecture::icu_control(void) 247 { 248 const char *sense_select[] = { 249 "falling edge", 250 "raising edge", 251 "low level", 252 "reserved", 253 }; 254 u_int16_t r; 255 // PINT0-15 256 DPRINTF((TEXT("PINT enable(on |) :"))); 257 bitdisp(reg_read16(ICU_PINTER_REG16)); 258 DPRINTF((TEXT("PINT detect(high |):"))); 259 bitdisp(reg_read16(ICU_ICR2_REG16)); 260 // NMI 261 r = reg_read16(ICU_ICR0_REG16); 262 DPRINTF((TEXT("NMI(%S %S-edge),"), 263 r & ICU_ICR0_NMIL ? "High" : "Low", 264 r & ICU_ICR0_NMIE ? "raising" : "falling")); 265 r = reg_read16(ICU_ICR1_REG16); 266 DPRINTF((TEXT(" %S maskable,"), r & ICU_ICR1_MAI ? "" : "never")); 267 DPRINTF((TEXT(" SR.BL %S\n"), 268 r & ICU_ICR1_BLMSK ? "ignored" : "maskable")); 269 // IRQ0-5 270 DPRINTF((TEXT("IRQ[3:0] : %S source\n"), 271 r & ICU_ICR1_IRQLVL ? "IRL 15level" : 272 "dependent IRQ[0:3](IRL disabled)")); 273 if (r & ICU_ICR1_IRQLVL) { 274 DPRINTF((TEXT("IRLS[0:3] %S\n"), 275 r & ICU_ICR1_IRLSEN ? "enabled" : "disabled")); 276 } 277 // sense select 278 for (int i = 5; i >= 0; i--) { 279 DPRINTF((TEXT("IRQ[%d] %S\n"), i, 280 sense_select [ 281 (r >>(i * 2)) & ICU_SENSE_SELECT_MASK])); 282 } 283 } 284 285 SH_BOOT_FUNC_(7709); 286 SH_BOOT_FUNC_(7709A); 287 288 // 289 // Debug Functions. 290 // 291 void 292 SHArchitecture::scif_dump(int bps) 293 { 294 u_int16_t r16; 295 u_int8_t r8; 296 int n; 297 298 /* mode */ 299 r8 = SHREG_SCSMR2; 300 n = 1 <<((r8 & SCSMR2_CKS) << 1); 301 DPRINTF((TEXT("mode: %dbit %S-parity %d stop bit clock PCLOCK/%d\n"), 302 r8 & SCSMR2_CHR ? 7 : 8, 303 r8 & SCSMR2_PE ? r8 & SCSMR2_OE ? "odd" : "even" : "non", 304 r8 & SCSMR2_STOP ? 2 : 1, 305 n)); 306 /* bit rate */ 307 r8 = SHREG_SCBRR2; 308 DPRINTF((TEXT("SCBRR=%d(%dbps) estimated PCLOCK %dHz\n"), r8, bps, 309 32 * bps *(r8 + 1) * n)); 310 311 /* control */ 312 #define DBG_BIT_PRINT(r, m) _dbg_bit_print(r, SCSCR2_##m, #m) 313 DPRINTF((TEXT("SCSCR2: "))); 314 r8 = SHREG_SCSCR2; 315 DBG_BIT_PRINT(r8, TIE); 316 DBG_BIT_PRINT(r8, RIE); 317 DBG_BIT_PRINT(r8, TE); 318 DBG_BIT_PRINT(r8, RE); 319 DPRINTF((TEXT("CKE=%d\n"), r8 & SCSCR2_CKE)); 320 #undef DBG_BIT_PRINT 321 322 /* status */ 323 #define DBG_BIT_PRINT(r, m) _dbg_bit_print(r, SCSSR2_##m, #m) 324 r16 = SHREG_SCSSR2; 325 DPRINTF((TEXT("SCSSR2: "))); 326 DBG_BIT_PRINT(r16, ER); 327 DBG_BIT_PRINT(r16, TEND); 328 DBG_BIT_PRINT(r16, TDFE); 329 DBG_BIT_PRINT(r16, BRK); 330 DBG_BIT_PRINT(r16, FER); 331 DBG_BIT_PRINT(r16, PER); 332 DBG_BIT_PRINT(r16, RDF); 333 DBG_BIT_PRINT(r16, DR); 334 #undef DBG_BIT_PRINT 335 336 /* FIFO control */ 337 #define DBG_BIT_PRINT(r, m) _dbg_bit_print(r, SCFCR2_##m, #m) 338 r8 = SHREG_SCFCR2; 339 DPRINTF((TEXT("SCFCR2: "))); 340 DBG_BIT_PRINT(r8, RTRG1); 341 DBG_BIT_PRINT(r8, RTRG0); 342 DBG_BIT_PRINT(r8, TTRG1); 343 DBG_BIT_PRINT(r8, TTRG0); 344 DBG_BIT_PRINT(r8, MCE); 345 DBG_BIT_PRINT(r8, TFRST); 346 DBG_BIT_PRINT(r8, RFRST); 347 DBG_BIT_PRINT(r8, LOOP); 348 DPRINTF((TEXT("\n"))); 349 #undef DBG_BIT_PRINT 350 } 351 352 void 353 SHArchitecture::hd64461_framebuffer_test() 354 { 355 DPRINTF((TEXT("frame buffer test start\n"))); 356 #if SH7709TEST 357 u_int32_t sh7707_fb_dma_addr; 358 u_int16_t val; 359 int s; 360 361 s = suspendIntr(); 362 VOLATILE_REF16(SH7707_LCDAR_REG16) = SH7707_LCDAR_LCDDMR0; 363 val = VOLATILE_REF16(SH7707_LCDDMR_REG16); 364 sh7707_fb_dma_addr = val; 365 VOLATILE_REF16(SH7707_LCDAR_REG16) = SH7707_LCDAR_LCDDMR1; 366 val = VOLATILE_REF16(SH7707_LCDDMR_REG16); 367 sh7707_fb_dma_addr |= (val << 16); 368 resumeIntr(s); 369 370 DPRINTF((TEXT("SH7707 frame buffer dma address: 0x%08x\n"), 371 sh7707_fb_dma_addr)); 372 #else 373 u_int8_t *fb = reinterpret_cast<u_int8_t *>(HD64461_FB_ADDR); 374 375 for (int i = 0; i < 480 * 240 * 2 / 8; i++) 376 *fb++ = 0xff; 377 #endif 378 DPRINTF((TEXT("frame buffer test end\n"))); 379 } 380
Indexes created Tue Sep 23 02:09:52 GMT 2025