diff options
Diffstat (limited to 'src/vendorcode/cavium/bdk/libbdk-hal/bdk-config.c')
| -rw-r--r-- | src/vendorcode/cavium/bdk/libbdk-hal/bdk-config.c | 1420 |
1 files changed, 264 insertions, 1156 deletions
diff --git a/src/vendorcode/cavium/bdk/libbdk-hal/bdk-config.c b/src/vendorcode/cavium/bdk/libbdk-hal/bdk-config.c index d4b412d439..91f05d3ae7 100644 --- a/src/vendorcode/cavium/bdk/libbdk-hal/bdk-config.c +++ b/src/vendorcode/cavium/bdk/libbdk-hal/bdk-config.c @@ -1,81 +1,265 @@ -/***********************license start*********************************** -* Copyright (c) 2003-2017 Cavium Inc. (support@cavium.com). All rights -* reserved. -* -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions are -* met: -* -* * Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* -* * 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. -* -* * Neither the name of Cavium Inc. nor the names of -* its contributors may be used to endorse or promote products -* derived from this software without specific prior written -* permission. -* -* This Software, including technical data, may be subject to U.S. export -* control laws, including the U.S. Export Administration Act and its -* associated regulations, and may be subject to export or import -* regulations in other countries. -* -* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" -* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR -* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT -* TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY -* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT -* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES -* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR -* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, -* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK -* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU. -***********************license end**************************************/ +/* + * This file is part of the coreboot project. + * + * Copyright (c) 2003-2017 Cavium Inc. (support@cavium.com). All rights + * reserved. + * Copyright 2018-present Facebook, Inc. + * + * SPDX-License-Identifier: BSD-3-Clause + * + * This file consists of data imported from bdk-config.c + */ + #include <bdk.h> -#include <stdarg.h> -#include <libfdt.h> -#include <unistd.h> -#include "libbdk-arch/bdk-csrs-mio_fus.h" -#include "libbdk-arch/bdk-csrs-fus.h" +#include <libbdk-hal/bdk-config.h> +#include <string.h> +#include <assert.h> +#include <lame_string.h> + +static struct bdk_devicetree_key_value *config_fdt; + +#if !defined(__PRE_RAM__) +static struct bdk_devicetree_key_value *bdk_config_duplicate( + const struct bdk_devicetree_key_value *old, + size_t free_space) +{ + struct bdk_devicetree_key_value *new; + size_t len = sizeof(struct bdk_devicetree_key_value) + free_space; + const struct bdk_devicetree_key_value *iter = old; + while (iter->key) { + iter++; + len += sizeof(struct bdk_devicetree_key_value); + } + new = malloc(len); + if (!new) + return NULL; -/* Set this define to override the trace the BDK uses. This is most - useful with trusted boot when the setup menus are not able to - configure the trace level. A possible example: */ -//#define BDK_TRACE_OVERRIDE (1ull << BDK_TRACE_ENABLE_INIT) -#define BDK_TRACE_OVERRIDE 0 + memcpy(new, old, len); + + return new; +} +#endif +/** + * Set the device tree used for configuration + * + * @param fdt Device tree to use. Memory is assumed to be from malloc() and bdk_config takes + * over ownership on success + * + * @return Zero on success, negative on failure + */ +int bdk_config_set_fdt(const struct bdk_devicetree_key_value *fdt) +{ +#if !defined(__PRE_RAM__) + config_fdt = bdk_config_duplicate(fdt, 0); +#else + config_fdt = (void *)fdt; +#endif + return 0; +} -typedef enum +/** + * Look up a configuration item in the environment and replace it. + * + * @param name + * + * @return + */ +static void set_value(const char *name, const char *val) { - BDK_CONFIG_TYPE_INT, - BDK_CONFIG_TYPE_STR, - BDK_CONFIG_TYPE_STR_LIST, - BDK_CONFIG_TYPE_BINARY, -} bdk_config_type_t; +#if !defined(__PRE_RAM__) + struct bdk_devicetree_key_value *iter; + char n[64]; + + strncpy(n, name, sizeof(n)); + n[sizeof(n)-1] = '\0'; + + iter = config_fdt; + while (iter->key) { + if (strcmp(iter->key, n) == 0) { + // we are leaking memory here... + iter->value = (const char *)strdup(val); + return; + } + iter++; + } + /* Not found: Create one */ + iter = bdk_config_duplicate(config_fdt, + sizeof(struct bdk_devicetree_key_value)); + if (!iter) + return; -typedef struct + free(config_fdt); + config_fdt = iter; + while (iter->key) { + iter++; + } + iter->key = (const char *)strdup(name); + iter->value = (const char *)strdup(val); + iter++; + iter->key = 0; + iter->value = 0; +#endif +} + +/** + * Look up a configuration item in the environment. + * + * @param name + * + * @return + */ +static const char *get_value(const char *name) { - const char *format; /* Printf style format string to create the item name */ - const bdk_config_type_t ctype;/* Type of this item */ - int64_t default_value; /* Default value when no present. String defaults are cast to pointers from this */ - const int64_t min_value;/* Minimum valid value for INT parameters. Unused for Strings */ - const int64_t max_value;/* Maximum valid value for INT parameters. Unused for Strings */ -} bdk_config_info_t; + const struct bdk_devicetree_key_value *iter; + char n[64]; -static void config_set_defaults(void); + strncpy(n, name, sizeof(n)); + n[sizeof(n)-1] = '\0'; -/* Tracing defaults to the level specified here before config files are loaded */ -uint64_t bdk_trace_enables = BDK_TRACE_OVERRIDE; + while (*n) { + iter = config_fdt; + while (iter->key) { + if (strcmp(iter->key, n) == 0) + return iter->value; + iter++; + } -/* Global variables that contain the config inside a FDT */ -static void *config_fdt; -static int config_node; + char *p = strrchr(n, '.'); + if (p) + *p = '\0'; + else + break; + } + return NULL; +} -static bdk_config_info_t config_info[__BDK_CONFIG_END] = { +/** + * Get an integer configuration item + * + * @param cfg_item Config item to get. If the item takes parameters (see bdk_config_t), then the + * parameters are listed following cfg_item. + * + * @return The value of the configuration item, or def_value if the item is not set + */ +int64_t bdk_config_get_int(bdk_config_t cfg_item, ...) +{ + char name[64]; + size_t count; + int64_t tmp; + + assert(cfg_item < __BDK_CONFIG_END); + + /* Make sure the correct access function was called */ + assert(config_info[cfg_item].ctype == BDK_CONFIG_TYPE_INT); + + if (!config_fdt) + return config_info[cfg_item].default_value; + + va_list args; + va_start(args, cfg_item); + vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); + va_end(args); + + const char *val = get_value(name); + if (!val) + return config_info[cfg_item].default_value; + +#if 0 + if ((val[0] == '0') && (val[1] == 'x')) + count = sscanf(val + 2, "%lx", &tmp); + else + count = sscanf(val, "%li", &tmp); +#endif + + if ((val[0] == '0') && (val[1] == 'x')) + count = str_to_hex(val + 2, &tmp); + else + count = str_to_int(val, &tmp); + if (count == 1) { + if ((tmp < config_info[cfg_item].min_value) || + (tmp > config_info[cfg_item].max_value)) { + printk(BIOS_WARNING, "Out of range for %s = %s, using " + "default\n", name, val); + return config_info[cfg_item].default_value; + } + return tmp; + } + + printk(BIOS_WARNING, "Failed to parse %s = %s, using default\n", + name, val); + return config_info[cfg_item].default_value; +} + +/** + * Set an integer configuration item. Note this only sets the item in memory, + * persistent storage is not updated. + * + * @param value Configuration item value + * @param cfg_item Config item to set. If the item takes parameters (see bdk_config_t), then the + * parameters are listed following cfg_item. + */ +void bdk_config_set_int(int64_t value, bdk_config_t cfg_item, ...) +{ + char name[64], val[32]; + + assert(cfg_item < __BDK_CONFIG_END); + + /* Make sure the correct access function was called */ + assert(config_info[cfg_item].ctype == BDK_CONFIG_TYPE_INT); + + if (!config_fdt) + return; + + va_list args; + va_start(args, cfg_item); + vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); + va_end(args); + + snprintf(val, sizeof(val), "0x%016llx", value); + set_value(name, val); +} + +/** + * Get a string configuration item + * + * @param cfg_item Config item to get. If the item takes parameters (see bdk_config_t), then the + * parameters are listed following cfg_item. + * + * @return The value of the configuration item, or def_value if the item is not set + */ +const char *bdk_config_get_str(bdk_config_t cfg_item, ...) +{ + char name[64]; + + /* Make sure the correct access function was called */ + assert(config_info[cfg_item].ctype == BDK_CONFIG_TYPE_STR); + + if (!config_fdt) + return (const char *)config_info[cfg_item].default_value; + + va_list args; + va_start(args, cfg_item); + vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); + + if (BDK_CONFIG_QLM_MODE == cfg_item) { + char name2[64]; + vsnprintf(name2, sizeof(name2)-1,"QLM-MODE.N%d.DLM%d" , args); + const char *val = get_value(name2); + if (val) + printk(BIOS_WARNING, "%s: QLM-MODE.N%%d.DLM%%d format " + "depricated. Please use QLM-MODE.N%%d.QLM%%d " + "instead\n", name2); + } + va_end(args); + + const char *val = get_value(name); + if (val) + return val; + else + return (const char *)config_info[cfg_item].default_value; +} + +bdk_config_info_t config_info[] = { /* Board manufacturing data */ [BDK_CONFIG_BOARD_MODEL] = { .format = "BOARD-MODEL", /* String, No parameters */ @@ -251,11 +435,11 @@ static bdk_config_info_t config_info[__BDK_CONFIG_END] = { .max_value = 0xffff, }, [BDK_CONFIG_PCIE_WIDTH] = { - .format = "PCIE-WIDTH.N%d.PORT%d", /* Parameters: Node, Port */ - .ctype = BDK_CONFIG_TYPE_INT, - .default_value = -1, /* Width override for PCIe links */ - .min_value = -1, - .max_value = 16, + .format = "PCIE-WIDTH.N%d.PORT%d", /* Parameters: Node, Port */ + .ctype = BDK_CONFIG_TYPE_INT, + .default_value = -1, /* Width override for PCIe links */ + .min_value = -1, + .max_value = 16, }, [BDK_CONFIG_PCIE_PHYSICAL_SLOT] = { .format = "PCIE-PHYSICAL-SLOT.N%d.PORT%d", /* Parameters: Node, Port */ @@ -264,6 +448,13 @@ static bdk_config_info_t config_info[__BDK_CONFIG_END] = { .min_value = -1, .max_value = 8191, }, + [BDK_CONFIG_PCIE_SKIP_LINK_TRAIN] = { + .format = "PCIE-SKIP-LINK-TRAIN.N%d.PORT%d", /* Parameters: Node, Port */ + .ctype = BDK_CONFIG_TYPE_INT, + .default_value = 0, /* Define which physical slot we connect to on the board */ + .min_value = 0, + .max_value = 1, + }, [BDK_CONFIG_PCIE_FLASH] = { .format = "PCIE-FLASH.N%d.PORT%d", /* Parameters: Node, Port */ .ctype = BDK_CONFIG_TYPE_STR_LIST, @@ -361,7 +552,6 @@ static bdk_config_info_t config_info[__BDK_CONFIG_END] = { .min_value = -1, .max_value = 40, }, - /* DRAM configuration options */ [BDK_CONFIG_DDR_SPEED] = { .format = "DDR-SPEED.N%d", /* Parameters: Node */ @@ -862,1085 +1052,3 @@ static bdk_config_info_t config_info[__BDK_CONFIG_END] = { }, }; -/** - * Look up a configuration item in the environment. - * - * @param name - * - * @return - */ -static const char *get_value(const char *name, int *blob_size) -{ - if (!config_fdt) - { - bdk_error("bdk-config asked for %s before configuration loaded\n", name); - return NULL; - } - - char n[64]; - strncpy(n, name, sizeof(n)); - n[sizeof(n)-1] = '\0'; - - while (*n) - { - const char *val = fdt_getprop(config_fdt, config_node, n, blob_size); - if (val) - return val; - - char *p = strrchr(n, '.'); - if (p) - *p = '\0'; - else - break; - } - return NULL; -} - -/** - * Get an integer configuration item - * - * @param cfg_item Config item to get. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - * - * @return The value of the configuration item, or def_value if the item is not set - */ -int64_t bdk_config_get_int(bdk_config_t cfg_item, ...) -{ - /* Make sure the correct access function was called */ - if (config_info[cfg_item].ctype != BDK_CONFIG_TYPE_INT) - bdk_fatal("bdk_config_get_int() called for %s, not an int\n", - config_info[cfg_item].format); - - char name[64]; - va_list args; - va_start(args, cfg_item); - vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); - va_end(args); - - const char *val = get_value(name, NULL); - if (val) - { - int count; - int64_t tmp; - if ((val[0] == '0') && (val[1] == 'x')) - count = sscanf(val + 2, "%lx", &tmp); - else - count = sscanf(val, "%li", &tmp); - if (count == 1) - { - if ((tmp < config_info[cfg_item].min_value) || (tmp > config_info[cfg_item].max_value)) - { - bdk_warn("Out of range for %s = \"%s\", using default\n", name, val); - return config_info[cfg_item].default_value; - } - return tmp; - } - else - { - bdk_warn("Failed to parse %s = \"%s\", using default\n", name, val); - return config_info[cfg_item].default_value; - } - } - else - return config_info[cfg_item].default_value; -} - -/** - * Get a string configuration item - * - * @param cfg_item Config item to get. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - * - * @return The value of the configuration item, or def_value if the item is not set - */ -const char *bdk_config_get_str(bdk_config_t cfg_item, ...) -{ - /* Make sure the correct access function was called */ - if (config_info[cfg_item].ctype != BDK_CONFIG_TYPE_STR) - bdk_fatal("bdk_config_get_str() called for %s, not a str\n", - config_info[cfg_item].format); - - char name[64]; - va_list args; - va_start(args, cfg_item); - vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); - - if (BDK_CONFIG_QLM_MODE == cfg_item) - { - char name2[64]; - vsnprintf(name2, sizeof(name2)-1,"QLM-MODE.N%d.DLM%d" , args); - const char *val = get_value(name2, NULL); - if (val) - bdk_warn("%s: QLM-MODE.N%%d.DLM%%d format depricated. Please use QLM-MODE.N%%d.QLM%%d instead\n", name2); - - } - va_end(args); - - const char *val = get_value(name, NULL); - if (val) - return val; - else - return (const char *)config_info[cfg_item].default_value; -} - -/** - * Get a binary blob - * - * @param blob_size Integer to receive the size of the blob - * @param cfg_item Config item to get. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - * - * @return The value of the configuration item, or def_value if the item is not set - */ -const void* bdk_config_get_blob(int *blob_size, bdk_config_t cfg_item, ...) -{ - char name[64]; - va_list args; - va_start(args, cfg_item); - vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); - va_end(args); - - const void *val = get_value(name, blob_size); - if (val) - return val; - else - return (const void *)config_info[cfg_item].default_value; -} - -/** - * Set an integer configuration item. Note this only sets the item in memory, - * persistent storage is not updated. The optional parameters for the setting are - * not supplied, meaning this function only changes the global default. - * - * @param value Configuration item value - * @param cfg_item Config item to set. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - */ -void bdk_config_set_int_no_param(int64_t value, bdk_config_t cfg_item) -{ - /* Make sure the correct access function was called */ - if (config_info[cfg_item].ctype != BDK_CONFIG_TYPE_INT) - bdk_fatal("bdk_config_set_int_no_param() called for %s, not an int\n", - config_info[cfg_item].format); - - char name[64]; - char valstr[20]; - /* Create a name without the optional parameters */ - strncpy(name, config_info[cfg_item].format, sizeof(name) - 1); - name[sizeof(name) - 1] = 0; - char *ptr = strchr(name, '.'); - if (ptr) - *ptr = 0; - - if (!config_fdt) - { - bdk_error("bdk-config set %s before configuration loaded\n", name); - return; - } - if ((value < config_info[cfg_item].min_value) || (value > config_info[cfg_item].max_value)) - { - bdk_error("Set out of range for %s = \"0x%lx\", ignoring\n", name, value); - return; - } - - if (value < 10) - snprintf(valstr, sizeof(valstr), "%ld", value); - else - snprintf(valstr, sizeof(valstr), "0x%lx", value); - - int status = fdt_setprop_string(config_fdt, config_node, name, valstr); - if (status < 0) - bdk_fatal("Failed to set %s=%s in FDT\n", name, valstr); -} - -/** - * Set an integer configuration item. Note this only sets the item in memory, - * persistent storage is not updated. - * - * @param value Configuration item value - * @param cfg_item Config item to set. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - */ -void bdk_config_set_int(int64_t value, bdk_config_t cfg_item, ...) -{ - /* Make sure the correct access function was called */ - if (config_info[cfg_item].ctype != BDK_CONFIG_TYPE_INT) - bdk_fatal("bdk_config_set_int() called for %s, not an int\n", - config_info[cfg_item].format); - - char name[64]; - char valstr[20]; - va_list args; - va_start(args, cfg_item); - vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); - va_end(args); - - if (!config_fdt) - { - bdk_error("bdk-config set %s before configuration loaded\n", name); - return; - } - if ((value < config_info[cfg_item].min_value) || (value > config_info[cfg_item].max_value)) - { - bdk_error("Set out of range for %s = \"0x%lx\", ignoring\n", name, value); - return; - } - - if (value < 10) - snprintf(valstr, sizeof(valstr), "%ld", value); - else - snprintf(valstr, sizeof(valstr), "0x%lx", value); - - int status = fdt_setprop_string(config_fdt, config_node, name, valstr); - if (status < 0) - bdk_fatal("Failed to set %s=%s in FDT\n", name, valstr); -} - -/** - * Set an integer configuration item. Note this only sets the item in memory, - * persistent storage is not updated. - * - * @param value Configuration item value - * @param cfg_item Config item to set. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - */ -void bdk_config_set_str(const char *value, bdk_config_t cfg_item, ...) -{ - /* Make sure the correct access function was called */ - if (config_info[cfg_item].ctype != BDK_CONFIG_TYPE_STR) - bdk_fatal("bdk_config_set_str() called for %s, not a str\n", - config_info[cfg_item].format); - - char name[64]; - va_list args; - - va_start(args, cfg_item); - vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); - va_end(args); - - if (!config_fdt) - { - bdk_error("bdk-config set %s before configuration loaded\n", name); - return; - } - - int status; - if (value) - status = fdt_setprop_string(config_fdt, config_node, name, value); - else - status = fdt_delprop(config_fdt, config_node, name); - - if ((status < 0) && (status != -FDT_ERR_NOTFOUND)) - bdk_fatal("Failed to set %s=%s in FDT\n", name, value); -} - -/** - * Set a blob configuration item. Note this only sets the - * item in memory, persistent storage is not updated. The optional - * parameters for the setting are not supplied, meaning this function - * only changes the global default. - * - * @param size Size of the item in bytes. A size of zero removes the device tree field - * @param value Configuration item value - * @param cfg_item Config item to set. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - */ -void bdk_config_set_blob_no_param(int size, const void *value, bdk_config_t cfg_item) -{ - /* Make sure the correct access function was called */ - if ((config_info[cfg_item].ctype != BDK_CONFIG_TYPE_BINARY) && - (config_info[cfg_item].ctype != BDK_CONFIG_TYPE_STR_LIST)) - bdk_fatal("bdk_config_set_blob() called for %s, not binary\n", - config_info[cfg_item].format); - - char name[64]; - /* Create a name without the optional parameters */ - strncpy(name, config_info[cfg_item].format, sizeof(name) - 1); - name[sizeof(name) - 1] = 0; - char *ptr = strchr(name, '.'); - if (ptr) - *ptr = 0; - - if (!config_fdt) - { - bdk_error("bdk-config set %s before configuration loaded\n", name); - return; - } - - int status; - if (size) - status = fdt_setprop(config_fdt, config_node, name, value, size); - else - status = fdt_delprop(config_fdt, config_node, name); - - if ((status < 0) && (status != -FDT_ERR_NOTFOUND)) - bdk_fatal("Failed to set %s in FDT\n", name); -} - -/** - * Set a blob configuration item. Note this only sets the - * item in memory, persistent storage is not updated. - * - * @param size Size of the item in bytes. A size of zero removes the device tree field - * @param value Configuration item value - * @param cfg_item Config item to set. If the item takes parameters (see bdk_config_t), then the - * parameters are listed following cfg_item. - */ -void bdk_config_set_blob(int size, const void *value, bdk_config_t cfg_item, ...) -{ - /* Make sure the correct access function was called */ - if ((config_info[cfg_item].ctype != BDK_CONFIG_TYPE_BINARY) && - (config_info[cfg_item].ctype != BDK_CONFIG_TYPE_STR_LIST)) - bdk_fatal("bdk_config_set_blob() called for %s, not binary\n", - config_info[cfg_item].format); - - char name[64]; - va_list args; - - va_start(args, cfg_item); - vsnprintf(name, sizeof(name)-1, config_info[cfg_item].format, args); - va_end(args); - - if (!config_fdt) - { - bdk_error("bdk-config set %s before configuration loaded\n", name); - return; - } - - int status; - if (size) - status = fdt_setprop(config_fdt, config_node, name, value, size); - else - status = fdt_delprop(config_fdt, config_node, name); - - if ((status < 0) && (status != -FDT_ERR_NOTFOUND)) - bdk_fatal("Failed to set %s in FDT\n", name); -} - -/** - * Multiple functions need to display the config item help string in a format - * suitable for inclusion in a device tree. This function displays the help - * message properly indented and such. - * - * @param cfg Config item to display help for - */ -static void display_help(bdk_config_t cfg) -{ - /* Print the help text as a comment before the entry */ - /* Indent with tabs like Linux requires */ - printf("\n"); - printf("\t/* "); - const char *ptr = bdk_config_get_help(cfg); - while (*ptr) - { - putchar(*ptr); - if (*ptr == '\n') - putchar('\t'); - ptr++; - } - printf(" */\n"); - /* Print the parameter and its default value a comment. This will be - a reference that is easy for the user to change */ - printf("\t//%s = ", config_info[cfg].format); - switch (config_info[cfg].ctype) - { - case BDK_CONFIG_TYPE_INT: - if (config_info[cfg].default_value < 10) - printf("\"%ld\"", config_info[cfg].default_value); - else - printf("\"0x%lx\"", config_info[cfg].default_value); - break; - case BDK_CONFIG_TYPE_STR: - case BDK_CONFIG_TYPE_STR_LIST: - if (config_info[cfg].default_value) - printf("\"%s\"", (const char *)config_info[cfg].default_value); - else - printf("\"\""); - break; - case BDK_CONFIG_TYPE_BINARY: - printf("[]"); - break; - } - printf(";\n"); -} - -/** - * Display the active configuration as a valid device tree - */ -void bdk_config_show(void) -{ - /* Output the standard DTS headers */ - printf("/dts-v1/;\n"); - printf("\n"); - printf("/ {\n"); - printf("cavium,bdk {\n"); - for (bdk_config_t cfg = 0; cfg < __BDK_CONFIG_END; cfg++) - { - /* Show the help message */ - display_help(cfg); - - /* Figure out how much of the config item is fixed versus - the optional parameters */ - const char *format = config_info[cfg].format; - const char *format_param = strchr(format, '.'); - int format_length = 0; - if (format_param) - format_length = format_param - format; - - /* Loop through all device tree entries displaying the ones that - match this format */ - int offset = fdt_first_property_offset(config_fdt, config_node); - while (offset >= 0) - { - /* Get the device tree item */ - const char *name = NULL; - int data_size = 0; - const char *data = fdt_getprop_by_offset(config_fdt, offset, &name, &data_size); - const char *data_end = data + data_size; - /* Find the first param */ - const char *name_param = strchr(name, '.'); - int name_length = 0; - if (name_param) - { - /* We want to compare up to the first param */ - name_length = name_param - name; - /* If the lengths are different not including the parameters, - then we force a full matchn which will always fail */ - if (name_length != format_length) - name_length = 0; - } - else /* No params, match base of format */ - name_length = format_length; - - /* Check if it matches the current config format */ - int match; - if (name_length) - { - /* Check the prefix */ - match = strncmp(name, format, name_length); - if (match == 0) - { - /* Prefix matched. We only really match if the next - character is the end of the string or a '.' */ - if ((name[name_length] != 0) && (name[name_length] != '.')) - match = 1; - } - } - else - match = strcmp(name, format); - /* Print matching entries */ - if (match == 0) - { - if (config_info[cfg].ctype == BDK_CONFIG_TYPE_BINARY) - { - printf("\t%s = [", name); - const char *ptr = data; - while (ptr < data_end) - { - printf(" %02x", (int)*ptr); - ptr++; - } - printf(" ]"); - } - else - { - printf("\t%s = \"%s\"", name, data); - data += strlen(data) + 1; - while (data < data_end) - { - printf(",\n\t\t\"%s\"", data); - data += strlen(data) + 1; - } - } - printf(";\n"); - } - offset = fdt_next_property_offset(config_fdt, offset); - } - } - /* Output the standard DTS footers */ - printf("}; /* cavium,bdk */\n"); - printf("}; /* / */\n"); -} - -/** - * Display a list of all possible config items with help text - */ -void bdk_config_help(void) -{ - /* Write out formatted as part of a device tree source (dts) file */ - printf("/dts-v1/;\n"); - printf("\n"); - printf("/ {\n"); - printf("cavium,bdk {\n"); - for (bdk_config_t cfg = 0; cfg < __BDK_CONFIG_END; cfg++) - display_help(cfg); - printf("}; /* cavium,bdk */\n"); - printf("}; /* / */\n"); -} - - -/** - * Save the current configuration to flash - * - * @return Zero on success, negative on failure - */ -int bdk_config_save(void) -{ - /* Pack the FDT so it uses less space */ - int status = fdt_pack(config_fdt); - if (status < 0) - { - bdk_error("FDT error %d: %s\n", status, fdt_strerror(status)); - return -1; - } - - /* Calculate a CRC32 of the FDT */ - int fdt_size = fdt_totalsize(config_fdt); - uint32_t crc32 = bdk_crc32(config_fdt, fdt_size, 0); - - /* Open the output file */ - FILE *outf = fopen("/fatfs/default.dtb", "wb"); - if (!outf) - { - bdk_error("Failed to open flash"); - return -1; - } - - /* Write the FDT */ - if (fwrite(config_fdt, fdt_size, 1, outf) != 1) - { - bdk_error("Failed to write FDT"); - fclose(outf); - return -1; - } - - /* Save the CRC32 in the same endianness as the FDT */ - crc32 = cpu_to_fdt32(crc32); - if (fwrite(&crc32, sizeof(crc32), 1, outf) != 1) - { - bdk_error("Failed to write FDT CRC32"); - fclose(outf); - return -1; - } - - fclose(outf); - return 0; -} - -/** - * Takes the current live device tree and exports it to a memory address suitable - * for passing to the next binary in register X1. - * - * @return Physical address of the device tree, or 0 on failure - */ -uint64_t __bdk_config_export_to_mem(void) -{ - void *end_ptr = sbrk(0); - bdk_node_t node = bdk_numa_master(); - int fdt_size = fdt_totalsize(config_fdt); - - /* Round size up to 4KB boundary, be sure to add 4 bytes for CRC32 */ - int fdt_space = (fdt_size + 4 + 0xfff) & -4096; - /* First try 4MB - FDT size as this keeps the FDT in the 4MB secure space - setup by ATF */ - void *fdt_ptr = bdk_phys_to_ptr(0x400000 - fdt_space); - if (!__bdk_is_dram_enabled(node)) - { - /* Address must be in L2 */ - int l2_size = bdk_l2c_get_cache_size_bytes(node); - void *l2_ptr = bdk_phys_to_ptr(l2_size - fdt_space); - if (l2_ptr < fdt_ptr) - fdt_ptr = l2_ptr; - if (fdt_ptr < end_ptr) - { - bdk_error("No room for FDT to pass to next binary\n"); - return 0; - } - } - else - { - /* We have DRAM, make sure we're past the end of this image */ - if (fdt_ptr < end_ptr) - fdt_ptr = end_ptr; - } - uint32_t crc32 = bdk_crc32(config_fdt, fdt_size, 0); - fdt_move(config_fdt, fdt_ptr, fdt_size); - /* CRC32 is stored in same endianness as FDT at the end */ - *(uint32_t *)((const char *)fdt_ptr + fdt_size) = cpu_to_fdt32(crc32); - BDK_TRACE(FDT_OS, "Exported device tree to memory %p, size 0x%x, CRC32 %08x\n", - fdt_ptr, fdt_size, crc32); - return bdk_ptr_to_phys(fdt_ptr); -} - -/** - * Return a pointer to the device tree used for configuration - * - * @return FDT or NULL on failure - */ -void* bdk_config_get_fdt(void) -{ - return config_fdt; -} - -/** - * Set the device tree used for configuration - * - * @param fdt Device tree to use. Memory is assumed to be from malloc() and bdk_config takes - * over ownership on success - * - * @return Zero on success, negative on failure - */ -int bdk_config_set_fdt(void *fdt) -{ - int offset = fdt_path_offset(fdt, "/cavium,bdk"); /* Find our node */ - if (offset < 0) - return -1; - free(config_fdt); - config_fdt = fdt; - config_node = offset; - return 0; -} - -/** - * Write all default values to a FDT. Missing config items get defaults in the - * BDK config, this function adds those defaults to the FDT. This way other code - * gets the default value without needing special code. - * - * @param fdt FDT structure to fill defaults into - * - * @return Zero on success, negative on failure - */ -int bdk_config_expand_defaults(void *fdt) -{ - const struct fdt_property *prop; - - /* The best defaults may have changed while this image was running if DRAM - is setup. Update the defaults before expanding them */ - config_set_defaults(); - - int fdt_node = fdt_path_offset(fdt, "/cavium,bdk"); /* Find our node */ - if (fdt_node < 0) - { - bdk_error("Failed to find top node, FDT error %d: %s\n", - fdt_node, fdt_strerror(fdt_node)); - return -1; - } - - /* Loop through all configuration items */ - for (bdk_config_t cfg = 0; cfg < __BDK_CONFIG_END; cfg++) - { - /* Figure out the base name without and dot parameters */ - const char *name = config_info[cfg].format; - const char *name_end = strchr(name, '.'); - int name_len; - if (name_end) - name_len = name_end - name; - else - name_len = strlen(name); - /* Try and find the base name in the FDT */ - prop = fdt_get_property_namelen(fdt, fdt_node, name, name_len, NULL); - /* If it wasn't found, then we need to add the default */ - if (prop == NULL) - { - /* Create a copy of the name for use in FDT calls */ - char temp_name[name_len + 1]; - memcpy(temp_name, name, name_len); - temp_name[name_len] = 0; - /* Call the correct FDT call based on the type */ - int status = 0; - switch (config_info[cfg].ctype) - { - case BDK_CONFIG_TYPE_INT: - { - char temp_value[20]; - if (config_info[cfg].default_value < 10) - snprintf(temp_value, sizeof(temp_value), "%ld", config_info[cfg].default_value); - else - snprintf(temp_value, sizeof(temp_value), "0x%lx", config_info[cfg].default_value); - /* Store the default int value */ - status = fdt_setprop_string(fdt, fdt_node, temp_name, temp_value); - break; - } - case BDK_CONFIG_TYPE_STR: - /* Store the default string value, if present */ - if (config_info[cfg].default_value) - { - status = fdt_setprop_string(fdt, fdt_node, temp_name, - (const char *)config_info[cfg].default_value); - } - break; - case BDK_CONFIG_TYPE_STR_LIST: - /* Do nothing, string list default to empty */ - break; - case BDK_CONFIG_TYPE_BINARY: - /* Do nothing, binary defaults to empty */ - break; - } - if (status < 0) - { - bdk_error("Failed to set default for %s, FDT error %d: %s\n", - temp_name, status, fdt_strerror(status)); - return -1; - } - } - } - return 0; -} - -/** - * Some of the default config values can vary based on runtime parameters. This - * function sets those default parameters. It must be run before anyone calls - * bdk_config_get_*(). - */ -static void config_set_defaults(void) -{ - bool isEmulation = bdk_is_platform(BDK_PLATFORM_EMULATOR); - /* This is Cavium's OUI with the local admin bit. We will use this as a - default as it won't collide with official addresses, but is sort of - part of the Cavium range. The lower three bytes will be updated with - the wafer info */ - uint64_t mac_address = 0x020fb7000000ull; - /* Set the lower MAC address bits based on the chip manufacturing - information. This should give reasonable MAC address defaults - for production parts */ - if (CAVIUM_IS_MODEL(CAVIUM_CN8XXX)) - { - BDK_CSR_INIT(fus_dat0, bdk_numa_local(), BDK_MIO_FUS_DAT0); - mac_address |= fus_dat0.u & 0xffffff; - } - else - { - mac_address |= bdk_fuse_read_range(bdk_numa_local(), BDK_FUS_FUSE_NUM_E_MFG_INFOX(0), 24); - } - config_info[BDK_CONFIG_MAC_ADDRESS].default_value = mac_address; - - /* Set the number of packet buffers */ - int num_packet_buffers = 4096; - /* If DRAM is setup, allocate 8K buffers for 8 ports plus some slop */ - if (__bdk_is_dram_enabled(bdk_numa_master())) - num_packet_buffers = 8192 * 16 + 1024; - else if (isEmulation) { - if (CAVIUM_IS_MODEL(CAVIUM_CN83XX)) - num_packet_buffers = 4096 * 4; - } - config_info[BDK_CONFIG_NUM_PACKET_BUFFERS].default_value = num_packet_buffers; - config_info[BDK_CONFIG_PACKET_BUFFER_SIZE].default_value = 1024; - - /* Asim doesn't scale to 48 cores well. Limit to 4 */ - if (bdk_is_platform(BDK_PLATFORM_ASIM)) - config_info[BDK_CONFIG_COREMASK].default_value = 0xf; - /* CN88XX pass 1.x doesn't support EA */ - if (CAVIUM_IS_MODEL(CAVIUM_CN88XX_PASS1_X)) - config_info[BDK_CONFIG_PCIE_EA].default_value = 0; - /* Emulator only supports 4 cores */ - if (isEmulation) - config_info[BDK_CONFIG_COREMASK].default_value = 0xf; -} - -/** - * BDK configuration items are stored in a device tree so thay can be passed to - * other software later. This function creates the initial empty device tree - * used for BDK configuration items. The values will be populated as configuration - * files are read from flash. - */ -static void config_setup_fdt(void) -{ - const int FDT_SIZE = 0x10000; - config_fdt = calloc(1, FDT_SIZE); - if (!config_fdt) - bdk_fatal("Unable to allocate memory for config FDT\n"); - if (fdt_create_empty_tree(config_fdt, FDT_SIZE) < 0) - bdk_fatal("Unable to create FDT for config\n"); - config_node = fdt_add_subnode(config_fdt, 0, "cavium,bdk"); - if (config_node < 0) - bdk_fatal("Unable to create cavium,bdk node in FDT\n"); -} - -/** - * Parse a FDT and copy its properties to our configuration FDT - * - * @param fdt FDT to parse - */ -static int config_parse_fdt(const void *fdt, const char *base_path) -{ - /* Check the FDT header */ - int result = fdt_check_header(fdt); - if (result) - goto fail; - - /* Find our node */ - result = fdt_path_offset(fdt, base_path); - if (result < 0) - goto fail; - - /* Copy all parameters to our in memory FDT */ - int offset = fdt_first_property_offset(fdt, result); - while (offset >= 0) - { - const char *name = NULL; - int blob_size = 0; - const char *data = fdt_getprop_by_offset(fdt, offset, &name, &blob_size); - result = fdt_setprop(config_fdt, config_node, name, data, blob_size); - offset = fdt_next_property_offset(fdt, offset); - } - return 0; -fail: - bdk_error("FDT error %d: %s\n", result, fdt_strerror(result)); - return -1; -} - -/** - * Load a FDT from a file and pull in its configuration properties - * - * @param filename File to read from - * @param offset Offset into the file to read from - * - * @return Zero on success, negative on failure - */ -static int config_load_file(const char *filename, uint64_t offset) -{ - uint64_t ftd_size = 0; - bdk_signed_flags_t sign_flags = BDK_SIGNED_FLAG_NONE; - if (offset) - sign_flags = BDK_SIGNED_FLAG_ALLOW_UNSIGNED | BDK_SIGNED_FLAG_NOT_ENCRYPTED; - void *fdt = bdk_signed_load(filename, offset, BDK_SIGNED_DTS, sign_flags, &ftd_size); - if (!fdt) - return -1; - - /* Make sure the read succeeded */ - if (ftd_size < (int)sizeof(struct fdt_header)) - { - bdk_error("Invalid device tee %s\n", filename); - free(fdt); - return -1; - } - - if (fdt_check_header(fdt)) - { - bdk_error("Invalid FDT header read from %s\n", filename); - free(fdt); - return -1; - } - - /* Make sure we read enough data to contain the FDT */ - int correct_size = fdt_totalsize(fdt); - if ((int)ftd_size < correct_size) - { - bdk_error("Unable to read FDT from %s\n", filename); - free(fdt); - return -1; - } - - /* Check if a CRC32 was added on the end of the FDT */ - if ((int)ftd_size >= correct_size + 4) - { - uint32_t crc32 = bdk_crc32(fdt, correct_size, 0); - uint32_t correct_crc32 = *(uint32_t *)((const char *)fdt + correct_size); - /* CRC32 is stored in same endianness as FDT */ - correct_crc32 = fdt32_to_cpu(correct_crc32); - if (crc32 != correct_crc32) - { - bdk_error("FDT failed CRC32 verification (%s)\n", filename); - free(fdt); - return -1; - } - //printf("PASS: FDT CRC32 verification (%s)\n", filename); - } - - /* Parse the device tree, adding its configuration to ours */ - if (config_parse_fdt(fdt, "/cavium,bdk")) - { - free(fdt); - return -1; - } - - free(fdt); - return 0; -} - -/** - * Internal BDK function to initialize the config system. Must be called before - * any configuration functions are called - */ -void __bdk_config_init(void) -{ - bool done_trust_init = false; - /* Set default that can vary dynamically at runtime */ - config_set_defaults(); - - /* Regsiter X1 is expected to be a device tree when we boot. Check that - the physical address seems correct, then load the device tree */ - if ((__bdk_init_reg_x1 > 0) && /* Not zero */ - (__bdk_init_reg_x1 < 0x1000000) && /* In the lower 16MB */ - ((__bdk_init_reg_x1 & 0xfff) == 0)) /* Aligned on a 4KB boundary */ - { - const void *fdt = (const void *)__bdk_init_reg_x1; - /* Check the FDT header */ - int result = fdt_check_header(fdt); - if (result) - result = -1; /* Invalid tree */ - else - { - int fdt_size = fdt_totalsize(fdt); - uint32_t crc32 = bdk_crc32(fdt, fdt_size, 0); - uint32_t correct_crc32 = *(uint32_t *)((const char *)fdt + fdt_size); - /* CRC32 is stored in same endianness as FDT */ - correct_crc32 = fdt32_to_cpu(correct_crc32); - if (crc32 == correct_crc32) - { - //printf("Previous image FDT passed CRC32 verification(%p, size 0x%x, CRC32 %08x)\n", fdt, fdt_size, crc32); - result = fdt_path_offset(fdt, "/cavium,bdk"); /* Find our node */ - } - else - { - bdk_error("Previous image FDT failed CRC32 verification(%p, size 0x%x)\n", fdt, fdt_size); - result = -1; /* Invalid tree */ - } - } - /* If tree is valid so far, attempt to move it into our memory space */ - if (result > 0) - { - /* 4KB extra room for growth */ - const int fdt_size = fdt_totalsize(fdt) + 4096; - config_fdt = calloc(1, fdt_size); - if (config_fdt) - { - int result = fdt_move(fdt, config_fdt, fdt_size); - if (result == 0) - { - /* Find our node */ - config_node = fdt_path_offset(config_fdt, "/cavium,bdk"); - if (config_node > 0) - { - printf("Using configuration from previous image\n"); - goto done; - } - else - { - bdk_error("Unable to find BDK node after move\n"); - free(config_fdt); - config_node = 0; - config_fdt = NULL; - } - } - else - { - bdk_error("Unable to move passed device tree\n"); - free(config_fdt); - config_fdt = NULL; - } - } - else - bdk_error("Failed to allocate memory for passed device tree (%d bytes)\n", fdt_size); - } - } - - /* Create the global device tree used to store config items */ - config_setup_fdt(); - /* Setup trust level so reading device trees works */ - __bdk_trust_init(); - done_trust_init = true; - - if (bdk_is_platform(BDK_PLATFORM_ASIM)) - { - if (CAVIUM_IS_MODEL(CAVIUM_CN88XX)) - bdk_config_set_str("ASIM-CN88XX", BDK_CONFIG_BOARD_MODEL); - else if (CAVIUM_IS_MODEL(CAVIUM_CN83XX)) - bdk_config_set_str("ASIM-CN83XX", BDK_CONFIG_BOARD_MODEL); - else if (CAVIUM_IS_MODEL(CAVIUM_CN81XX)) - bdk_config_set_str("ASIM-CN81XX", BDK_CONFIG_BOARD_MODEL); - else if (CAVIUM_IS_MODEL(CAVIUM_CN93XX)) - bdk_config_set_str("ASIM-CN93XX", BDK_CONFIG_BOARD_MODEL); - } - else if (bdk_is_platform(BDK_PLATFORM_EMULATOR)) - { - if (CAVIUM_IS_MODEL(CAVIUM_CN88XX)) - bdk_config_set_str("EMUL-CN88XX", BDK_CONFIG_BOARD_MODEL); - else if (CAVIUM_IS_MODEL(CAVIUM_CN83XX)) - bdk_config_set_str("EMUL-CN83XX", BDK_CONFIG_BOARD_MODEL); - else if (CAVIUM_IS_MODEL(CAVIUM_CN81XX)) - bdk_config_set_str("EMUL-CN81XX", BDK_CONFIG_BOARD_MODEL); - else if (CAVIUM_IS_MODEL(CAVIUM_CN93XX)) - bdk_config_set_str("EMUL-CN93XX", BDK_CONFIG_BOARD_MODEL); - } - else if (config_load_file("/rom/boardcfg.dtb", 0) == 0) - { - printf("Board manufacturing information loaded from ROM-FS\n"); - } - /* Load manufacturing data from the top 64KB of flash */ - else if (config_load_file("/boot", BDK_CONFIG_MANUFACTURING_ADDRESS) != 0) - { - printf("\33[1m"); /* Bold */ - bdk_warn("\n"); - bdk_warn("********************************************************\n"); - bdk_warn("* Board manufacturing information not found. Program\n"); - bdk_warn("* the board manufacturing information in the Setup menu.\n"); - bdk_warn("********************************************************\n"); - bdk_warn("\n"); - printf("\33[0m"); /* Normal */ - goto done; - } - - const char *model = bdk_config_get_str(BDK_CONFIG_BOARD_MODEL); - const char *revision = bdk_config_get_str(BDK_CONFIG_BOARD_REVISION); - - /* Load BOARD-REVISION.cfg if it is on ROM-FS */ - if (model && revision) - { - char filename[64]; - snprintf(filename, sizeof(filename), "/rom/%s-%s.dtb", model, revision); - if (config_load_file(filename, 0) == 0) - goto done; - } - - /* Load BOARD.cfg if it is on ROM-FS */ - if (model) - { - char filename[64]; - snprintf(filename, sizeof(filename), "/rom/%s.dtb", model); - if (config_load_file(filename, 0) == 0) - goto done; - } - - /* Load default.dtb if it is there */ - if (config_load_file("/fatfs/default.dtb", 0) == 0) - goto done; - - /* Load BOARD-REVISION.cfg if it is there */ - if (model && revision) - { - char filename[64]; - snprintf(filename, sizeof(filename), "/fatfs/%s-%s.dtb", model, revision); - if (config_load_file(filename, 0) == 0) - goto done; - } - - /* Load BOARD.cfg if it is there */ - if (model) - { - char filename[64]; - snprintf(filename, sizeof(filename), "/fatfs/%s.dtb", model); - if (config_load_file(filename, 0) == 0) - goto done; - } - - /* No board specific configuration was found. Warn the user */ - printf("\33[1m"); /* Bold */ - bdk_warn("\n"); - bdk_warn("********************************************************\n"); - bdk_warn("* Board configuration file not found. Either the board\n"); - bdk_warn("* model is incorrect, or factory settings are not\n"); - bdk_warn("* available. DTB file not found for board \"%s\".\n", model); - bdk_warn("********************************************************\n"); - bdk_warn("\n"); - printf("\33[0m"); /* Normal */ - -done: - bdk_config_set_str(bdk_version_string(), BDK_CONFIG_VERSION); - /* Load the tracing level */ - bdk_trace_enables = bdk_config_get_int(BDK_CONFIG_TRACE); - if (BDK_TRACE_OVERRIDE) - bdk_trace_enables = BDK_TRACE_OVERRIDE; - if (!done_trust_init) - __bdk_trust_init(); -} |