diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 2 | ||||
| -rw-r--r-- | common/cmd_bootm.c | 2 | ||||
| -rw-r--r-- | common/cmd_fdt.c | 301 | ||||
| -rw-r--r-- | common/fdt_support.c | 323 |
4 files changed, 356 insertions, 272 deletions
diff --git a/common/Makefile b/common/Makefile index 74a6af2..5dfd3a8 100644 --- a/common/Makefile +++ b/common/Makefile @@ -45,7 +45,7 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o cmd_autoscript.o \ env_nand.o env_dataflash.o env_flash.o env_eeprom.o \ env_nvram.o env_nowhere.o \ exports.o \ - flash.o fpga.o ft_build.o \ + fdt_support.o flash.o fpga.o ft_build.o \ hush.o kgdb.o lcd.o lists.o lynxkdi.o \ memsize.o miiphybb.o miiphyutil.o \ s_record.o serial.o soft_i2c.o soft_spi.o spartan2.o spartan3.o \ diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 2721216b..3eeb03c 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -950,7 +950,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, printf (" Loading Device Tree to %08lx, end %08lx ... ", of_start, of_start + of_len - 1); - err = fdt_open_into(of_start, of_data, of_len); + err = fdt_open_into((void *)of_start, (void *)of_data, of_len); if (err != 0) { printf ("libfdt: %s\n", fdt_strerror(err)); } diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c index 968bade..08fe351 100644 --- a/common/cmd_fdt.c +++ b/common/cmd_fdt.c @@ -30,9 +30,11 @@ #include <linux/types.h> #ifdef CONFIG_OF_LIBFDT + #include <asm/global_data.h> #include <fdt.h> #include <libfdt.h> +#include <fdt_support.h> #define MAX_LEVEL 32 /* how deeply nested we will go */ #define SCRATCHPAD 1024 /* bytes of scratchpad memory */ @@ -53,9 +55,6 @@ static char data[SCRATCHPAD]; */ static int fdt_valid(void); static void print_data(const void *data, int len); -static int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end); -static int fdt_env(void *fdt); -static int fdt_bd_t(void *fdt); /* @@ -437,7 +436,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) * Create a chosen node ********************************************************************/ } else if (op == 'c') { - fdt_chosen(fdt, 0, 0); + fdt_chosen(fdt, 0, 0, 1); /******************************************************************** * Create a u-boot-env node @@ -466,25 +465,36 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) static int fdt_valid(void) { + int err; + if (fdt == NULL) { - printf ("The address of the fdt is invalid.\n"); - return 0; - } - if (!fdt || (fdt_magic(fdt) != FDT_MAGIC)) { - fdt = NULL; - printf ("Unrecognized fdt: bad magic\n"); - return 0; - } - if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION) { - printf ("Unsupported fdt version: $d < %d\n", - FDT_FIRST_SUPPORTED_VERSION, fdt_version(fdt)); - fdt = NULL; + printf ("The address of the fdt is invalid (NULL).\n"); return 0; } - if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION) { - printf ("Unsupported fdt version: $d > %d\n", - fdt_version(fdt), FDT_LAST_SUPPORTED_VERSION); - fdt = NULL; + + err = fdt_check_header(fdt); + if (err == 0) + return 1; /* valid */ + + if (err < 0) { + printf("libfdt: %s", fdt_strerror(err)); + /* + * Be more informative on bad version. + */ + if (err == -FDT_ERR_BADVERSION) { + if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION) { + printf (" - too old, fdt $d < %d", + fdt_version(fdt), FDT_FIRST_SUPPORTED_VERSION); + fdt = NULL; + } + if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION) { + printf (" - too new, fdt $d > %d", + fdt_version(fdt), FDT_LAST_SUPPORTED_VERSION); + fdt = NULL; + } + return 0; + } + printf("\n"); return 0; } return 1; @@ -593,255 +603,6 @@ static void print_data(const void *data, int len) /********************************************************************/ -static int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end) -{ - bd_t *bd = gd->bd; - int nodeoffset; - int err; - u32 tmp; /* used to set 32 bit integer properties */ - char *str; /* used to set string properties */ - ulong clock; - - if (initrd_start && initrd_end) { - err = fdt_add_reservemap_entry(fdt, - initrd_start, initrd_end - initrd_start + 1); - if (err < 0) { - printf("libfdt: %s\n", fdt_strerror(err)); - return err; - } - } - - /* - * See if we already have a "chosen" node, create it if not. - */ - nodeoffset = fdt_path_offset (fdt, "/chosen"); - if (nodeoffset < 0) { - /* - * Create a new node "/chosen" (offset 0 is root level) - */ - nodeoffset = fdt_add_subnode(fdt, 0, "chosen"); - if (nodeoffset < 0) { - printf("libfdt: %s\n", fdt_strerror(nodeoffset)); - return nodeoffset; - } - } - - str = getenv("bootargs"); - if (str != NULL) { - err = fdt_setprop(fdt, nodeoffset, "bootargs", str, strlen(str)+1); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - } - if (initrd_start && initrd_end) { - tmp = __cpu_to_be32(initrd_start); - err = fdt_setprop(fdt, nodeoffset, "linux,initrd-start", &tmp, sizeof(tmp)); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - tmp = __cpu_to_be32(initrd_end); - err = fdt_setprop(fdt, nodeoffset, "linux,initrd-end", &tmp, sizeof(tmp)); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - } -#ifdef OF_STDOUT_PATH - err = fdt_setprop(fdt, nodeoffset, "linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); -#endif - - nodeoffset = fdt_path_offset (fdt, "/cpus"); - if (nodeoffset >= 0) { - clock = cpu_to_be32(bd->bi_intfreq); - err = fdt_setprop(fdt, nodeoffset, "clock-frequency", &clock, 4); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - } -#ifdef OF_TBCLK - nodeoffset = fdt_path_offset (fdt, "/cpus/" OF_CPU "/timebase-frequency"); - if (nodeoffset >= 0) { - clock = cpu_to_be32(OF_TBCLK); - err = fdt_setprop(fdt, nodeoffset, "clock-frequency", &clock, 4); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - } -#endif -} - -/********************************************************************/ - -#ifdef CONFIG_OF_HAS_BD_T - -/* Function that returns a character from the environment */ -extern uchar(*env_get_char) (int); - -#define BDM(x) { .name = #x, .offset = offsetof(bd_t, bi_ ##x ) } - -static const struct { - const char *name; - int offset; -} bd_map[] = { - BDM(memstart), - BDM(memsize), - BDM(flashstart), - BDM(flashsize), - BDM(flashoffset), - BDM(sramstart), - BDM(sramsize), -#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \ - || defined(CONFIG_E500) - BDM(immr_base), -#endif -#if defined(CONFIG_MPC5xxx) - BDM(mbar_base), -#endif -#if defined(CONFIG_MPC83XX) - BDM(immrbar), -#endif -#if defined(CONFIG_MPC8220) - BDM(mbar_base), - BDM(inpfreq), - BDM(pcifreq), - BDM(pevfreq), - BDM(flbfreq), - BDM(vcofreq), -#endif - BDM(bootflags), - BDM(ip_addr), - BDM(intfreq), - BDM(busfreq), -#ifdef CONFIG_CPM2 - BDM(cpmfreq), - BDM(brgfreq), - BDM(sccfreq), - BDM(vco), -#endif -#if defined(CONFIG_MPC5xxx) - BDM(ipbfreq), - BDM(pcifreq), -#endif - BDM(baudrate), -}; - -static int fdt_env(void *fdt) -{ - int nodeoffset; - int err; - int k, nxt; - int i; - static char tmpenv[256]; - - /* - * See if we already have a "u-boot-env" node, delete it if so. - * Then create a new empty node. - */ - nodeoffset = fdt_path_offset (fdt, "/u-boot-env"); - if (nodeoffset >= 0) { - err = fdt_del_node(fdt, nodeoffset); - if (err < 0) { - printf("libfdt: %s\n", fdt_strerror(err)); - return err; - } - } - /* - * Create a new node "/u-boot-env" (offset 0 is root level) - */ - nodeoffset = fdt_add_subnode(fdt, 0, "u-boot-env"); - if (nodeoffset < 0) { - printf("libfdt: %s\n", fdt_strerror(nodeoffset)); - return nodeoffset; - } - - for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { - char *s, *lval, *rval; - - /* - * Find the end of the name=definition - */ - for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) - ; - s = tmpenv; - for (k = i; k < nxt && s < &tmpenv[sizeof(tmpenv) - 1]; ++k) - *s++ = env_get_char(k); - *s++ = '\0'; - lval = tmpenv; - /* - * Find the first '=': it separates the name from the value - */ - s = strchr(tmpenv, '='); - if (s != NULL) { - *s++ = '\0'; - rval = s; - } else - continue; - err = fdt_setprop(fdt, nodeoffset, lval, rval, strlen(rval)+1); - if (err < 0) { - printf("\"%s\" - libfdt: %s\n", lval, fdt_strerror(err)); - return err; - } - } - return 0; -} -#endif /* CONFIG_OF_HAS_UBOOT_ENV */ - -/********************************************************************/ - -#ifdef CONFIG_OF_HAS_BD_T -static int fdt_bd_t(void *fdt) -{ - bd_t *bd = gd->bd; - int nodeoffset; - int err; - u32 tmp; /* used to set 32 bit integer properties */ - int i; - - /* - * See if we already have a "bd_t" node, delete it if so. - * Then create a new empty node. - */ - nodeoffset = fdt_path_offset (fdt, "/bd_t"); - if (nodeoffset >= 0) { - err = fdt_del_node(fdt, nodeoffset); - if (err < 0) { - printf("libfdt: %s\n", fdt_strerror(err)); - return err; - } - } - /* - * Create a new node "/bd_t" (offset 0 is root level) - */ - nodeoffset = fdt_add_subnode(fdt, 0, "bd_t"); - if (nodeoffset < 0) { - printf("libfdt: %s\n", fdt_strerror(nodeoffset)); - return nodeoffset; - } - /* - * Use the string/pointer structure to create the entries... - */ - for (i = 0; i < sizeof(bd_map)/sizeof(bd_map[0]); i++) { - tmp = cpu_to_be32(getenv("bootargs")); - err = fdt_setprop(fdt, nodeoffset, bd_map[i].name, &tmp, sizeof(tmp)); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - } - /* - * Add a couple of oddball entries... - */ - err = fdt_setprop(fdt, nodeoffset, "enetaddr", &bd->bi_enetaddr, 6); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - err = fdt_setprop(fdt, nodeoffset, "ethspeed", &bd->bi_ethspeed, 4); - if (err < 0) - printf("libfdt: %s\n", fdt_strerror(err)); - -#ifdef CONFIG_OF_BOARD_SETUP - ft_board_setup(fdt, bd); -#endif - - return 0; -} -#endif /* CONFIG_OF_HAS_BD_T */ - -/********************************************************************/ - U_BOOT_CMD( fdt, 5, 0, do_fdt, "fdt - flattened device tree utility commands\n", @@ -871,4 +632,4 @@ U_BOOT_CMD( " fdt set /cpus \"#address-cells\" \"[00 00 00 01]\"\n" ); -#endif /* CONFIG_OF_FLAT_TREE */ +#endif /* CONFIG_OF_LIBFDT */ diff --git a/common/fdt_support.c b/common/fdt_support.c new file mode 100644 index 0000000..14a4df5 --- /dev/null +++ b/common/fdt_support.c @@ -0,0 +1,323 @@ +/* + * (C) Copyright 2007 + * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <linux/ctype.h> +#include <linux/types.h> + +#ifdef CONFIG_OF_LIBFDT + +#include <asm/global_data.h> +#include <fdt.h> +#include <libfdt.h> +#include <fdt_support.h> + +/* + * Global data (for the gd->bd) + */ +DECLARE_GLOBAL_DATA_PTR; + + +/********************************************************************/ + +int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end, int force) +{ + bd_t *bd = gd->bd; + int nodeoffset; + int err; + u32 tmp; /* used to set 32 bit integer properties */ + char *str; /* used to set string properties */ + ulong clock; + + err = fdt_check_header(fdt); + if (err < 0) { + printf("libfdt: %s\n", fdt_strerror(err)); + return err; + } + +#warning "Don't double-add the reserved map" + if (initrd_start && initrd_end) { + err = fdt_add_reservemap_entry(fdt, + initrd_start, initrd_end - initrd_start + 1); + if (err < 0) { + printf("libfdt: %s\n", fdt_strerror(err)); + return err; + } + } + + /* + * Find the "chosen" node. + */ + nodeoffset = fdt_path_offset (fdt, "/chosen"); + + /* + * If we have a "chosen" node already the "force the writing" + * is not set, our job is done. + */ + if ((nodeoffset >= 0) && !force) + return 0; + + /* + * No "chosen" node in the blob: create it. + */ + if (nodeoffset < 0) { + /* + * Create a new node "/chosen" (offset 0 is root level) + */ + nodeoffset = fdt_add_subnode(fdt, 0, "chosen"); + if (nodeoffset < 0) { + printf("libfdt: %s\n", fdt_strerror(nodeoffset)); + return nodeoffset; + } + } + + /* + * Update pre-existing properties, create them if non-existant. + */ + str = getenv("bootargs"); + if (str != NULL) { + err = fdt_setprop(fdt, nodeoffset, "bootargs", str, strlen(str)+1); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + } + if (initrd_start && initrd_end) { + tmp = __cpu_to_be32(initrd_start); + err = fdt_setprop(fdt, nodeoffset, "linux,initrd-start", &tmp, sizeof(tmp)); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + tmp = __cpu_to_be32(initrd_end); + err = fdt_setprop(fdt, nodeoffset, "linux,initrd-end", &tmp, sizeof(tmp)); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + } +#ifdef OF_STDOUT_PATH + err = fdt_setprop(fdt, nodeoffset, "linux,stdout-path", OF_STDOUT_PATH, strlen(OF_STDOUT_PATH)+1); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); +#endif + + nodeoffset = fdt_path_offset (fdt, "/cpus"); + if (nodeoffset >= 0) { + clock = cpu_to_be32(bd->bi_intfreq); + err = fdt_setprop(fdt, nodeoffset, "clock-frequency", &clock, 4); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + } +#ifdef OF_TBCLK + nodeoffset = fdt_path_offset (fdt, "/cpus/" OF_CPU "/timebase-frequency"); + if (nodeoffset >= 0) { + clock = cpu_to_be32(OF_TBCLK); + err = fdt_setprop(fdt, nodeoffset, "clock-frequency", &clock, 4); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + } +#endif + return err; +} + +/********************************************************************/ + +#ifdef CONFIG_OF_HAS_UBOOT_ENV + +/* Function that returns a character from the environment */ +extern uchar(*env_get_char) (int); + + +int fdt_env(void *fdt) +{ + int nodeoffset; + int err; + int k, nxt; + int i; + static char tmpenv[256]; + + err = fdt_check_header(fdt); + if (err < 0) { + printf("libfdt: %s\n", fdt_strerror(err)); + return err; + } + + /* + * See if we already have a "u-boot-env" node, delete it if so. + * Then create a new empty node. + */ + nodeoffset = fdt_path_offset (fdt, "/u-boot-env"); + if (nodeoffset >= 0) { + err = fdt_del_node(fdt, nodeoffset); + if (err < 0) { + printf("libfdt: %s\n", fdt_strerror(err)); + return err; + } + } + /* + * Create a new node "/u-boot-env" (offset 0 is root level) + */ + nodeoffset = fdt_add_subnode(fdt, 0, "u-boot-env"); + if (nodeoffset < 0) { + printf("libfdt: %s\n", fdt_strerror(nodeoffset)); + return nodeoffset; + } + + for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) { + char *s, *lval, *rval; + + /* + * Find the end of the name=definition + */ + for (nxt = i; env_get_char(nxt) != '\0'; ++nxt) + ; + s = tmpenv; + for (k = i; k < nxt && s < &tmpenv[sizeof(tmpenv) - 1]; ++k) + *s++ = env_get_char(k); + *s++ = '\0'; + lval = tmpenv; + /* + * Find the first '=': it separates the name from the value + */ + s = strchr(tmpenv, '='); + if (s != NULL) { + *s++ = '\0'; + rval = s; + } else + continue; + err = fdt_setprop(fdt, nodeoffset, lval, rval, strlen(rval)+1); + if (err < 0) { + printf("libfdt: %s\n", lval, fdt_strerror(err)); + return err; + } + } + return 0; +} +#endif /* CONFIG_OF_HAS_UBOOT_ENV */ + +/********************************************************************/ + +#ifdef CONFIG_OF_HAS_BD_T + +#define BDM(x) { .name = #x, .offset = offsetof(bd_t, bi_ ##x ) } + +static const struct { + const char *name; + int offset; +} bd_map[] = { + BDM(memstart), + BDM(memsize), + BDM(flashstart), + BDM(flashsize), + BDM(flashoffset), + BDM(sramstart), + BDM(sramsize), +#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) \ + || defined(CONFIG_E500) + BDM(immr_base), +#endif +#if defined(CONFIG_MPC5xxx) + BDM(mbar_base), +#endif +#if defined(CONFIG_MPC83XX) + BDM(immrbar), +#endif +#if defined(CONFIG_MPC8220) + BDM(mbar_base), + BDM(inpfreq), + BDM(pcifreq), + BDM(pevfreq), + BDM(flbfreq), + BDM(vcofreq), +#endif + BDM(bootflags), + BDM(ip_addr), + BDM(intfreq), + BDM(busfreq), +#ifdef CONFIG_CPM2 + BDM(cpmfreq), + BDM(brgfreq), + BDM(sccfreq), + BDM(vco), +#endif +#if defined(CONFIG_MPC5xxx) + BDM(ipbfreq), + BDM(pcifreq), +#endif + BDM(baudrate), +}; + + +int fdt_bd_t(void *fdt) +{ + bd_t *bd = gd->bd; + int nodeoffset; + int err; + u32 tmp; /* used to set 32 bit integer properties */ + int i; + + err = fdt_check_header(fdt); + if (err < 0) { + printf("libfdt: %s\n", fdt_strerror(err)); + return err; + } + + /* + * See if we already have a "bd_t" node, delete it if so. + * Then create a new empty node. + */ + nodeoffset = fdt_path_offset (fdt, "/bd_t"); + if (nodeoffset >= 0) { + err = fdt_del_node(fdt, nodeoffset); + if (err < 0) { + printf("libfdt: %s\n", fdt_strerror(err)); + return err; + } + } + /* + * Create a new node "/bd_t" (offset 0 is root level) + */ + nodeoffset = fdt_add_subnode(fdt, 0, "bd_t"); + if (nodeoffset < 0) { + printf("libfdt: %s\n", fdt_strerror(nodeoffset)); + return nodeoffset; + } + /* + * Use the string/pointer structure to create the entries... + */ + for (i = 0; i < sizeof(bd_map)/sizeof(bd_map[0]); i++) { + tmp = cpu_to_be32(getenv("bootargs")); + err = fdt_setprop(fdt, nodeoffset, bd_map[i].name, &tmp, sizeof(tmp)); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + } + /* + * Add a couple of oddball entries... + */ + err = fdt_setprop(fdt, nodeoffset, "enetaddr", &bd->bi_enetaddr, 6); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + err = fdt_setprop(fdt, nodeoffset, "ethspeed", &bd->bi_ethspeed, 4); + if (err < 0) + printf("libfdt: %s\n", fdt_strerror(err)); + + return 0; +} +#endif /* CONFIG_OF_HAS_BD_T */ + +#endif /* CONFIG_OF_LIBFDT */ |