1187423Sgonzo/*- 2187423Sgonzo * Copyright (c) 2009 Oleksandr Tymoshenko 3187423Sgonzo * All rights reserved. 4187423Sgonzo * 5187423Sgonzo * Redistribution and use in source and binary forms, with or without 6187423Sgonzo * modification, are permitted provided that the following conditions 7187423Sgonzo * are met: 8187423Sgonzo * 1. Redistributions of source code must retain the above copyright 9187423Sgonzo * notice, this list of conditions and the following disclaimer. 10187423Sgonzo * 2. Redistributions in binary form must reproduce the above copyright 11187423Sgonzo * notice, this list of conditions and the following disclaimer in the 12187423Sgonzo * documentation and/or other materials provided with the distribution. 13187423Sgonzo * 14187423Sgonzo * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15187423Sgonzo * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16187423Sgonzo * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17187423Sgonzo * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18187423Sgonzo * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19187423Sgonzo * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20187423Sgonzo * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21187423Sgonzo * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22187423Sgonzo * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23187423Sgonzo * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24187423Sgonzo * SUCH DAMAGE. 25187423Sgonzo */ 26187423Sgonzo 27187423Sgonzo#include <sys/cdefs.h> 28187423Sgonzo__FBSDID("$FreeBSD$"); 29187423Sgonzo 30187423Sgonzo#include "opt_ddb.h" 31187423Sgonzo 32187423Sgonzo#include <sys/param.h> 33187423Sgonzo#include <sys/conf.h> 34187423Sgonzo#include <sys/kernel.h> 35187423Sgonzo#include <sys/systm.h> 36187423Sgonzo#include <sys/bus.h> 37187423Sgonzo#include <sys/cons.h> 38187423Sgonzo#include <sys/kdb.h> 39198562Sthompsa#include <sys/reboot.h> 40187423Sgonzo 41187423Sgonzo#include <vm/vm.h> 42187423Sgonzo#include <vm/vm_page.h> 43187423Sgonzo 44192178Sgonzo#include <net/ethernet.h> 45192178Sgonzo 46187423Sgonzo#include <machine/clock.h> 47187423Sgonzo#include <machine/cpu.h> 48223562Skevlo#include <machine/cpuregs.h> 49187423Sgonzo#include <machine/hwfunc.h> 50187423Sgonzo#include <machine/md_var.h> 51187423Sgonzo#include <machine/trap.h> 52187423Sgonzo#include <machine/vmparam.h> 53187423Sgonzo 54187456Sgonzo#include <mips/atheros/ar71xxreg.h> 55187423Sgonzo 56211476Sadrian#include <mips/atheros/ar71xx_setup.h> 57211476Sadrian#include <mips/atheros/ar71xx_cpudef.h> 58211476Sadrian 59223562Skevlo#include <mips/sentry5/s5reg.h> 60223562Skevlo 61202954Sgonzoextern char edata[], end[]; 62202954Sgonzo 63192178Sgonzouint32_t ar711_base_mac[ETHER_ADDR_LEN]; 64198562Sthompsa/* 4KB static data aread to keep a copy of the bootload env until 65198562Sthompsa the dynamic kenv is setup */ 66198562Sthompsachar boot1_env[4096]; 67187423Sgonzo 68198562Sthompsa/* 69198562Sthompsa * We get a string in from Redboot with the all the arguments together, 70198562Sthompsa * "foo=bar bar=baz". Split them up and save in kenv. 71198562Sthompsa */ 72198562Sthompsastatic void 73198562Sthompsaparse_argv(char *str) 74198562Sthompsa{ 75198562Sthompsa char *n, *v; 76198562Sthompsa 77198562Sthompsa while ((v = strsep(&str, " ")) != NULL) { 78198562Sthompsa if (*v == '\0') 79198562Sthompsa continue; 80198562Sthompsa if (*v == '-') { 81198562Sthompsa while (*v != '\0') { 82198562Sthompsa v++; 83198562Sthompsa switch (*v) { 84198562Sthompsa case 'a': boothowto |= RB_ASKNAME; break; 85198562Sthompsa case 'd': boothowto |= RB_KDB; break; 86198562Sthompsa case 'g': boothowto |= RB_GDB; break; 87198562Sthompsa case 's': boothowto |= RB_SINGLE; break; 88198562Sthompsa case 'v': boothowto |= RB_VERBOSE; break; 89198562Sthompsa } 90198562Sthompsa } 91198562Sthompsa } else { 92198562Sthompsa n = strsep(&v, "="); 93198562Sthompsa if (v == NULL) 94198562Sthompsa setenv(n, "1"); 95198562Sthompsa else 96198562Sthompsa setenv(n, v); 97198562Sthompsa } 98198562Sthompsa } 99198562Sthompsa} 100198562Sthompsa 101187423Sgonzovoid 102198669Srrsplatform_cpu_init() 103198669Srrs{ 104198669Srrs /* Nothing special */ 105198669Srrs} 106198669Srrs 107198669Srrsvoid 108187423Sgonzoplatform_halt(void) 109187423Sgonzo{ 110187423Sgonzo 111187423Sgonzo} 112187423Sgonzo 113187423Sgonzovoid 114187423Sgonzoplatform_identify(void) 115187423Sgonzo{ 116187423Sgonzo 117187423Sgonzo} 118187423Sgonzo 119187423Sgonzovoid 120187423Sgonzoplatform_reset(void) 121187423Sgonzo{ 122211480Sadrian ar71xx_device_stop(RST_RESET_FULL_CHIP); 123187463Sgonzo /* Wait for reset */ 124187463Sgonzo while(1) 125187463Sgonzo ; 126187423Sgonzo} 127187423Sgonzo 128187423Sgonzovoid 129187423Sgonzoplatform_trap_enter(void) 130187423Sgonzo{ 131187423Sgonzo 132187423Sgonzo} 133187423Sgonzo 134187423Sgonzovoid 135187423Sgonzoplatform_trap_exit(void) 136187423Sgonzo{ 137187423Sgonzo 138187423Sgonzo} 139187423Sgonzo 140220056Sadrian/* 141220056Sadrian * Obtain the MAC address via the Redboot environment. 142220056Sadrian */ 143220056Sadrianstatic void 144220056Sadrianar71xx_redboot_get_macaddr(void) 145220056Sadrian{ 146220056Sadrian char *var; 147220056Sadrian int count = 0; 148220056Sadrian 149220056Sadrian /* 150220056Sadrian * "ethaddr" is passed via envp on RedBoot platforms 151220056Sadrian * "kmac" is passed via argv on RouterBOOT platforms 152220056Sadrian */ 153220056Sadrian if ((var = getenv("ethaddr")) != NULL || 154220056Sadrian (var = getenv("kmac")) != NULL) { 155220056Sadrian count = sscanf(var, "%x%*c%x%*c%x%*c%x%*c%x%*c%x", 156220056Sadrian &ar711_base_mac[0], &ar711_base_mac[1], 157220056Sadrian &ar711_base_mac[2], &ar711_base_mac[3], 158220056Sadrian &ar711_base_mac[4], &ar711_base_mac[5]); 159220056Sadrian if (count < 6) 160220056Sadrian memset(ar711_base_mac, 0, 161220056Sadrian sizeof(ar711_base_mac)); 162220056Sadrian freeenv(var); 163220056Sadrian } 164220056Sadrian} 165220056Sadrian 166187423Sgonzovoid 167187423Sgonzoplatform_start(__register_t a0 __unused, __register_t a1 __unused, 168187423Sgonzo __register_t a2 __unused, __register_t a3 __unused) 169187423Sgonzo{ 170195513Sgonzo uint64_t platform_counter_freq; 171220056Sadrian int argc, i; 172220056Sadrian char **argv, **envp; 173202954Sgonzo vm_offset_t kernend; 174187423Sgonzo 175202954Sgonzo /* 176202954Sgonzo * clear the BSS and SBSS segments, this should be first call in 177202954Sgonzo * the function 178202954Sgonzo */ 179202954Sgonzo kernend = (vm_offset_t)&end; 180187423Sgonzo memset(&edata, 0, kernend - (vm_offset_t)(&edata)); 181187423Sgonzo 182202954Sgonzo mips_postboot_fixup(); 183202954Sgonzo 184201845Simp /* Initialize pcpu stuff */ 185201881Simp mips_pcpu0_init(); 186201845Simp 187192178Sgonzo argc = a0; 188192178Sgonzo argv = (char**)a1; 189192178Sgonzo envp = (char**)a2; 190192178Sgonzo /* 191192178Sgonzo * Protect ourselves from garbage in registers 192192178Sgonzo */ 193192178Sgonzo if (MIPS_IS_VALID_PTR(envp)) { 194212774Sthompsa for (i = 0; envp[i]; i += 2) { 195192178Sgonzo if (strcmp(envp[i], "memsize") == 0) 196192178Sgonzo realmem = btoc(strtoul(envp[i+1], NULL, 16)); 197192178Sgonzo } 198192178Sgonzo } 199192178Sgonzo 200192178Sgonzo /* 201192178Sgonzo * Just wild guess. RedBoot let us down and didn't reported 202192178Sgonzo * memory size 203192178Sgonzo */ 204192178Sgonzo if (realmem == 0) 205192178Sgonzo realmem = btoc(32*1024*1024); 206192178Sgonzo 207220052Sadrian /* 208220052Sadrian * Allow build-time override in case Redboot lies 209220052Sadrian * or in other situations (eg where there's u-boot) 210220052Sadrian * where there isn't (yet) a convienent method of 211220052Sadrian * being told how much RAM is available. 212220052Sadrian * 213220052Sadrian * This happens on at least the Ubiquiti LS-SR71A 214220052Sadrian * board, where redboot says there's 16mb of RAM 215220052Sadrian * but in fact there's 32mb. 216220052Sadrian */ 217220052Sadrian#if defined(AR71XX_REALMEM) 218220096Sadrian realmem = btoc(AR71XX_REALMEM); 219220052Sadrian#endif 220220052Sadrian 221187424Sgonzo /* phys_avail regions are in bytes */ 222202954Sgonzo phys_avail[0] = MIPS_KSEG0_TO_PHYS(kernel_kseg0_end); 223187424Sgonzo phys_avail[1] = ctob(realmem); 224187423Sgonzo 225216318Sgonzo dump_avail[0] = phys_avail[0]; 226216318Sgonzo dump_avail[1] = phys_avail[1] - phys_avail[0]; 227216318Sgonzo 228187424Sgonzo physmem = realmem; 229187423Sgonzo 230187423Sgonzo /* 231187424Sgonzo * ns8250 uart code uses DELAY so ticker should be inititalized 232187424Sgonzo * before cninit. And tick_init_params refers to hz, so * init_param1 233187424Sgonzo * should be called first. 234187424Sgonzo */ 235187424Sgonzo init_param1(); 236211476Sadrian 237211476Sadrian /* Detect the system type - this is needed for subsequent chipset-specific calls */ 238211476Sadrian ar71xx_detect_sys_type(); 239211476Sadrian ar71xx_detect_sys_frequency(); 240211476Sadrian 241195513Sgonzo platform_counter_freq = ar71xx_cpu_freq(); 242192365Sgonzo mips_timer_init_params(platform_counter_freq, 1); 243187424Sgonzo cninit(); 244198562Sthompsa init_static_kenv(boot1_env, sizeof(boot1_env)); 245187423Sgonzo 246211476Sadrian printf("CPU platform: %s\n", ar71xx_get_system_type()); 247211476Sadrian printf("CPU Frequency=%d MHz\n", u_ar71xx_cpu_freq / 1000000); 248211476Sadrian printf("CPU DDR Frequency=%d MHz\n", u_ar71xx_ddr_freq / 1000000); 249211476Sadrian printf("CPU AHB Frequency=%d MHz\n", u_ar71xx_ahb_freq / 1000000); 250211476Sadrian 251192132Sgonzo printf("platform frequency: %lld\n", platform_counter_freq); 252187424Sgonzo printf("arguments: \n"); 253187423Sgonzo printf(" a0 = %08x\n", a0); 254187423Sgonzo printf(" a1 = %08x\n", a1); 255187423Sgonzo printf(" a2 = %08x\n", a2); 256187423Sgonzo printf(" a3 = %08x\n", a3); 257187423Sgonzo 258192178Sgonzo printf("Cmd line:"); 259192178Sgonzo if (MIPS_IS_VALID_PTR(argv)) { 260198562Sthompsa for (i = 0; i < argc; i++) { 261192178Sgonzo printf(" %s", argv[i]); 262198562Sthompsa parse_argv(argv[i]); 263198562Sthompsa } 264192178Sgonzo } 265192178Sgonzo else 266192178Sgonzo printf ("argv is invalid"); 267192178Sgonzo printf("\n"); 268192178Sgonzo 269192178Sgonzo printf("Environment:\n"); 270192178Sgonzo if (MIPS_IS_VALID_PTR(envp)) { 271198562Sthompsa for (i = 0; envp[i]; i+=2) { 272192178Sgonzo printf(" %s = %s\n", envp[i], envp[i+1]); 273198562Sthompsa setenv(envp[i], envp[i+1]); 274198562Sthompsa } 275192178Sgonzo } 276192178Sgonzo else 277192178Sgonzo printf ("envp is invalid\n"); 278192178Sgonzo 279220056Sadrian /* Redboot if_arge MAC address is in the environment */ 280220056Sadrian ar71xx_redboot_get_macaddr(); 281212774Sthompsa 282187424Sgonzo init_param2(physmem); 283187424Sgonzo mips_cpu_init(); 284187424Sgonzo pmap_bootstrap(); 285187424Sgonzo mips_proc0_init(); 286187424Sgonzo mutex_init(); 287187423Sgonzo 288188882Sgonzo /* 289188882Sgonzo * Reset USB devices 290188882Sgonzo */ 291211481Sadrian ar71xx_init_usb_peripheral(); 292188882Sgonzo 293187424Sgonzo kdb_init(); 294202849Simp#ifdef KDB 295202849Simp if (boothowto & RB_KDB) 296202849Simp kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger"); 297187423Sgonzo#endif 298187423Sgonzo} 299