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author | Minkyu Kang <mk7.kang@samsung.com> | 2012-12-10 13:44:41 +0900 |
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committer | Minkyu Kang <mk7.kang@samsung.com> | 2012-12-10 14:13:27 +0900 |
commit | 2c601c7208713ba9b2158c57adcf515f4bdbc212 (patch) | |
tree | 9f6e70f33565beceb956b98c261bee19731d50d2 /lib/fdtdec.c | |
parent | b8a7c467960ffb4d5a5e1eef5f7783fb6f594542 (diff) | |
parent | fd4d564b3c80b111f18c93adb14233a6a7ddb0e9 (diff) | |
download | u-boot-imx-2c601c7208713ba9b2158c57adcf515f4bdbc212.zip u-boot-imx-2c601c7208713ba9b2158c57adcf515f4bdbc212.tar.gz u-boot-imx-2c601c7208713ba9b2158c57adcf515f4bdbc212.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot into resolve
Conflicts:
README
board/samsung/universal_c210/universal.c
drivers/misc/Makefile
drivers/power/power_fsl.c
include/configs/mx35pdk.h
include/configs/mx53loco.h
include/configs/seaboard.h
Diffstat (limited to 'lib/fdtdec.c')
-rw-r--r-- | lib/fdtdec.c | 125 |
1 files changed, 98 insertions, 27 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 23e0205..6dba438 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -54,28 +54,6 @@ const char *fdtdec_get_compatible(enum fdt_compat_id id) return compat_names[id]; } -/** - * Look in the FDT for an alias with the given name and return its node. - * - * @param blob FDT blob - * @param name alias name to look up - * @return node offset if found, or an error code < 0 otherwise - */ -static int find_alias_node(const void *blob, const char *name) -{ - const char *path; - int alias_node; - - debug("find_alias_node: %s\n", name); - alias_node = fdt_path_offset(blob, "/aliases"); - if (alias_node < 0) - return alias_node; - path = fdt_getprop(blob, alias_node, name, NULL); - if (!path) - return -FDT_ERR_NOTFOUND; - return fdt_path_offset(blob, path); -} - fdt_addr_t fdtdec_get_addr(const void *blob, int node, const char *prop_name) { @@ -113,6 +91,19 @@ s32 fdtdec_get_int(const void *blob, int node, const char *prop_name, return default_val; } +uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name, + uint64_t default_val) +{ + const uint64_t *cell64; + int length; + + cell64 = fdt_getprop(blob, node, prop_name, &length); + if (!cell64 || length < sizeof(*cell64)) + return default_val; + + return fdt64_to_cpu(*cell64); +} + int fdtdec_get_is_enabled(const void *blob, int node) { const char *cell; @@ -130,7 +121,7 @@ int fdtdec_get_is_enabled(const void *blob, int node) return 1; } -enum fdt_compat_id fd_dec_lookup(const void *blob, int node) +enum fdt_compat_id fdtdec_lookup(const void *blob, int node) { enum fdt_compat_id id; @@ -173,7 +164,7 @@ int fdtdec_next_alias(const void *blob, const char *name, /* snprintf() is not available */ assert(strlen(name) < MAX_STR_LEN); sprintf(str, "%.*s%d", MAX_STR_LEN, name, *upto); - node = find_alias_node(blob, str); + node = fdt_path_offset(blob, str); if (node < 0) return node; err = fdt_node_check_compatible(blob, node, compat_names[id]); @@ -428,9 +419,8 @@ int fdtdec_get_bool(const void *blob, int node, const char *prop_name) * @return number of GPIOs read if ok, -FDT_ERR_BADLAYOUT if max_count would * be exceeded, or -FDT_ERR_NOTFOUND if the property is missing. */ -static int fdtdec_decode_gpios(const void *blob, int node, - const char *prop_name, struct fdt_gpio_state *gpio, - int max_count) +int fdtdec_decode_gpios(const void *blob, int node, const char *prop_name, + struct fdt_gpio_state *gpio, int max_count) { const struct fdt_property *prop; const u32 *cell; @@ -477,6 +467,26 @@ int fdtdec_decode_gpio(const void *blob, int node, const char *prop_name, return err == 1 ? 0 : err; } +int fdtdec_get_gpio(struct fdt_gpio_state *gpio) +{ + int val; + + if (!fdt_gpio_isvalid(gpio)) + return -1; + + val = gpio_get_value(gpio->gpio); + return gpio->flags & FDT_GPIO_ACTIVE_LOW ? val ^ 1 : val; +} + +int fdtdec_set_gpio(struct fdt_gpio_state *gpio, int val) +{ + if (!fdt_gpio_isvalid(gpio)) + return -1; + + val = gpio->flags & FDT_GPIO_ACTIVE_LOW ? val ^ 1 : val; + return gpio_set_value(gpio->gpio, val); +} + int fdtdec_setup_gpio(struct fdt_gpio_state *gpio) { /* @@ -514,3 +524,64 @@ const u8 *fdtdec_locate_byte_array(const void *blob, int node, return NULL; return cell; } + +int fdtdec_get_config_int(const void *blob, const char *prop_name, + int default_val) +{ + int config_node; + + debug("%s: %s\n", __func__, prop_name); + config_node = fdt_path_offset(blob, "/config"); + if (config_node < 0) + return default_val; + return fdtdec_get_int(blob, config_node, prop_name, default_val); +} + +int fdtdec_get_config_bool(const void *blob, const char *prop_name) +{ + int config_node; + const void *prop; + + debug("%s: %s\n", __func__, prop_name); + config_node = fdt_path_offset(blob, "/config"); + if (config_node < 0) + return 0; + prop = fdt_get_property(blob, config_node, prop_name, NULL); + + return prop != NULL; +} + +char *fdtdec_get_config_string(const void *blob, const char *prop_name) +{ + const char *nodep; + int nodeoffset; + int len; + + debug("%s: %s\n", __func__, prop_name); + nodeoffset = fdt_path_offset(blob, "/config"); + if (nodeoffset < 0) + return NULL; + + nodep = fdt_getprop(blob, nodeoffset, prop_name, &len); + if (!nodep) + return NULL; + + return (char *)nodep; +} + +int fdtdec_decode_region(const void *blob, int node, + const char *prop_name, void **ptrp, size_t *size) +{ + const fdt_addr_t *cell; + int len; + + debug("%s: %s\n", __func__, prop_name); + cell = fdt_getprop(blob, node, prop_name, &len); + if (!cell || (len != sizeof(fdt_addr_t) * 2)) + return -1; + + *ptrp = (void *)fdt_addr_to_cpu(*cell); + *size = fdt_size_to_cpu(cell[1]); + debug("%s: size=%zx\n", __func__, *size); + return 0; +} |