/*- * Copyright (c) 2016, Hiroki Mori * Copyright (c) 2009 Oleksandr Tymoshenko * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include "opt_ddb.h" #include "opt_ar531x.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include extern char edata[], end[]; uint32_t ar711_base_mac[ETHER_ADDR_LEN]; /* 4KB static data aread to keep a copy of the bootload env until the dynamic kenv is setup */ char boot1_env[4096]; void platform_cpu_init() { /* Nothing special */ } void platform_reset(void) { ar531x_device_reset(); /* Wait for reset */ while(1) ; } /* * Obtain the MAC address via the Redboot environment. */ static void ar5315_redboot_get_macaddr(void) { char *var; int count = 0; /* * "ethaddr" is passed via envp on RedBoot platforms * "kmac" is passed via argv on RouterBOOT platforms */ if ((var = kern_getenv("ethaddr")) != NULL || (var = kern_getenv("kmac")) != NULL) { count = sscanf(var, "%x%*c%x%*c%x%*c%x%*c%x%*c%x", &ar711_base_mac[0], &ar711_base_mac[1], &ar711_base_mac[2], &ar711_base_mac[3], &ar711_base_mac[4], &ar711_base_mac[5]); if (count < 6) memset(ar711_base_mac, 0, sizeof(ar711_base_mac)); freeenv(var); } } #if defined(SOC_VENDOR) || defined(SOC_MODEL) || defined(SOC_REV) static SYSCTL_NODE(_hw, OID_AUTO, soc, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "System on Chip information"); #endif #if defined(SOC_VENDOR) static char hw_soc_vendor[] = SOC_VENDOR; SYSCTL_STRING(_hw_soc, OID_AUTO, vendor, CTLFLAG_RD, hw_soc_vendor, 0, "SoC vendor"); #endif #if defined(SOC_MODEL) static char hw_soc_model[] = SOC_MODEL; SYSCTL_STRING(_hw_soc, OID_AUTO, model, CTLFLAG_RD, hw_soc_model, 0, "SoC model"); #endif #if defined(SOC_REV) static char hw_soc_revision[] = SOC_REV; SYSCTL_STRING(_hw_soc, OID_AUTO, revision, CTLFLAG_RD, hw_soc_revision, 0, "SoC revision"); #endif #if defined(DEVICE_VENDOR) || defined(DEVICE_MODEL) || defined(DEVICE_REV) static SYSCTL_NODE(_hw, OID_AUTO, device, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Board information"); #endif #if defined(DEVICE_VENDOR) static char hw_device_vendor[] = DEVICE_VENDOR; SYSCTL_STRING(_hw_device, OID_AUTO, vendor, CTLFLAG_RD, hw_device_vendor, 0, "Board vendor"); #endif #if defined(DEVICE_MODEL) static char hw_device_model[] = DEVICE_MODEL; SYSCTL_STRING(_hw_device, OID_AUTO, model, CTLFLAG_RD, hw_device_model, 0, "Board model"); #endif #if defined(DEVICE_REV) static char hw_device_revision[] = DEVICE_REV; SYSCTL_STRING(_hw_device, OID_AUTO, revision, CTLFLAG_RD, hw_device_revision, 0, "Board revision"); #endif void platform_start(__register_t a0 __unused, __register_t a1 __unused, __register_t a2 __unused, __register_t a3 __unused) { uint64_t platform_counter_freq; int argc = 0, i; char **argv = NULL; #ifndef AR531X_ENV_UBOOT char **envp = NULL; #endif vm_offset_t kernend; /* * clear the BSS and SBSS segments, this should be first call in * the function */ kernend = (vm_offset_t)&end; memset(&edata, 0, kernend - (vm_offset_t)(&edata)); mips_postboot_fixup(); /* Initialize pcpu stuff */ mips_pcpu0_init(); /* * Until some more sensible abstractions for uboot/redboot * environment handling, we have to make this a compile-time * hack. The existing code handles the uboot environment * very incorrectly so we should just ignore initialising * the relevant pointers. */ #ifndef AR531X_ENV_UBOOT argc = a0; argv = (char**)a1; envp = (char**)a2; #endif /* * Protect ourselves from garbage in registers */ if (MIPS_IS_VALID_PTR(envp)) { for (i = 0; envp[i]; i += 2) { if (strcmp(envp[i], "memsize") == 0) realmem = btoc(strtoul(envp[i+1], NULL, 16)); } } ar5315_detect_sys_type(); // RedBoot SDRAM Detect is missing // ar531x_detect_mem_size(); /* * Just wild guess. RedBoot let us down and didn't reported * memory size */ if (realmem == 0) realmem = btoc(16*1024*1024); /* * Allow build-time override in case Redboot lies * or in other situations (eg where there's u-boot) * where there isn't (yet) a convienent method of * being told how much RAM is available. * * This happens on at least the Ubiquiti LS-SR71A * board, where redboot says there's 16mb of RAM * but in fact there's 32mb. */ #if defined(AR531X_REALMEM) realmem = btoc(AR531X_REALMEM); #endif /* phys_avail regions are in bytes */ phys_avail[0] = MIPS_KSEG0_TO_PHYS(kernel_kseg0_end); phys_avail[1] = ctob(realmem); dump_avail[0] = phys_avail[0]; dump_avail[1] = phys_avail[1] - phys_avail[0]; physmem = realmem; /* * ns8250 uart code uses DELAY so ticker should be inititalized * before cninit. And tick_init_params refers to hz, so * init_param1 * should be called first. */ init_param1(); boothowto |= (RB_SERIAL | RB_MULTIPLE); /* Use multiple consoles */ // boothowto |= RB_VERBOSE; // boothowto |= (RB_SINGLE); /* Detect the system type - this is needed for subsequent chipset-specific calls */ ar531x_device_soc_init(); ar531x_detect_sys_frequency(); platform_counter_freq = ar531x_cpu_freq(); mips_timer_init_params(platform_counter_freq, 1); cninit(); init_static_kenv(boot1_env, sizeof(boot1_env)); printf("CPU platform: %s\n", ar5315_get_system_type()); printf("CPU Frequency=%d MHz\n", ar531x_cpu_freq() / 1000000); printf("CPU DDR Frequency=%d MHz\n", ar531x_ddr_freq() / 1000000); printf("CPU AHB Frequency=%d MHz\n", ar531x_ahb_freq() / 1000000); printf("platform frequency: %lld\n", platform_counter_freq); printf("arguments: \n"); printf(" a0 = %08x\n", a0); printf(" a1 = %08x\n", a1); printf(" a2 = %08x\n", a2); printf(" a3 = %08x\n", a3); strcpy(cpu_model, ar5315_get_system_type()); /* * XXX this code is very redboot specific. */ printf("Cmd line:"); if (MIPS_IS_VALID_PTR(argv)) { for (i = 0; i < argc; i++) { printf(" %s", argv[i]); boothowto |= boot_parse_arg(argv[i]); } } else printf ("argv is invalid"); printf("\n"); printf("Environment:\n"); #if 0 if (MIPS_IS_VALID_PTR(envp)) { if (envp[0] && strchr(envp[0], '=') ) { char *env_val; // for (i = 0; envp[i]; i++) { env_val = strchr(envp[i], '='); /* Not sure if we correct to change data, but env in RAM */ *(env_val++) = '\0'; printf("= %s = %s\n", envp[i], env_val); kern_setenv(envp[i], env_val); } } else { for (i = 0; envp[i]; i+=2) { printf(" %s = %s\n", envp[i], envp[i+1]); kern_setenv(envp[i], envp[i+1]); } } } else printf ("envp is invalid\n"); #else printf ("envp skiped\n"); #endif /* Redboot if_are MAC address is in the environment */ ar5315_redboot_get_macaddr(); init_param2(physmem); mips_cpu_init(); pmap_bootstrap(); mips_proc0_init(); mutex_init(); ar531x_device_start(); kdb_init(); #ifdef KDB if (boothowto & RB_KDB) kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger"); #endif }