#include <libfdt.h>
#include <fdtdec.h>
-/* we need the generic GPIO interface here */
-#include <asm-generic/gpio.h>
+#include <asm/gpio.h>
DECLARE_GLOBAL_DATA_PTR;
static const char * const compat_names[COMPAT_COUNT] = {
COMPAT(UNKNOWN, "<none>"),
COMPAT(NVIDIA_TEGRA20_USB, "nvidia,tegra20-ehci"),
+ COMPAT(NVIDIA_TEGRA114_I2C, "nvidia,tegra114-i2c"),
COMPAT(NVIDIA_TEGRA20_I2C, "nvidia,tegra20-i2c"),
COMPAT(NVIDIA_TEGRA20_DVC, "nvidia,tegra20-i2c-dvc"),
COMPAT(NVIDIA_TEGRA20_EMC, "nvidia,tegra20-emc"),
COMPAT(NVIDIA_TEGRA20_EMC_TABLE, "nvidia,tegra20-emc-table"),
COMPAT(NVIDIA_TEGRA20_KBC, "nvidia,tegra20-kbc"),
+ COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"),
+ COMPAT(NVIDIA_TEGRA20_PWM, "nvidia,tegra20-pwm"),
+ COMPAT(NVIDIA_TEGRA20_DC, "nvidia,tegra20-dc"),
+ COMPAT(NVIDIA_TEGRA30_SDMMC, "nvidia,tegra30-sdhci"),
+ COMPAT(NVIDIA_TEGRA20_SDMMC, "nvidia,tegra20-sdhci"),
+ COMPAT(NVIDIA_TEGRA20_SFLASH, "nvidia,tegra20-sflash"),
+ COMPAT(NVIDIA_TEGRA20_SLINK, "nvidia,tegra20-slink"),
+ COMPAT(NVIDIA_TEGRA114_SPI, "nvidia,tegra114-spi"),
+ COMPAT(SMSC_LAN9215, "smsc,lan9215"),
+ COMPAT(SAMSUNG_EXYNOS5_SROMC, "samsung,exynos-sromc"),
+ COMPAT(SAMSUNG_S3C2440_I2C, "samsung,s3c2440-i2c"),
+ COMPAT(SAMSUNG_EXYNOS5_SOUND, "samsung,exynos-sound"),
+ COMPAT(WOLFSON_WM8994_CODEC, "wolfson,wm8994-codec"),
+ COMPAT(SAMSUNG_EXYNOS_SPI, "samsung,exynos-spi"),
+ COMPAT(SAMSUNG_EXYNOS_EHCI, "samsung,exynos-ehci"),
+ COMPAT(SAMSUNG_EXYNOS_USB_PHY, "samsung,exynos-usb-phy"),
+ COMPAT(SAMSUNG_EXYNOS_TMU, "samsung,exynos-tmu"),
+ COMPAT(SAMSUNG_EXYNOS_FIMD, "samsung,exynos-fimd"),
+ COMPAT(SAMSUNG_EXYNOS5_DP, "samsung,exynos5-dp"),
+ COMPAT(SAMSUNG_EXYNOS5_DWMMC, "samsung,exynos5250-dwmmc"),
+ COMPAT(MAXIM_MAX77686_PMIC, "maxim,max77686_pmic"),
+ COMPAT(GENERIC_SPI_FLASH, "spi-flash"),
+ COMPAT(MAXIM_98095_CODEC, "maxim,max98095-codec"),
+ COMPAT(INFINEON_SLB9635_TPM, "infineon,slb9635-tpm"),
};
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)
+fdt_addr_t fdtdec_get_addr_size(const void *blob, int node,
+ const char *prop_name, fdt_size_t *sizep)
{
- const char *path;
- int alias_node;
+ const fdt_addr_t *cell;
+ int len;
- 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);
+ debug("%s: %s: ", __func__, prop_name);
+ cell = fdt_getprop(blob, node, prop_name, &len);
+ if (cell && ((!sizep && len == sizeof(fdt_addr_t)) ||
+ len == sizeof(fdt_addr_t) * 2)) {
+ fdt_addr_t addr = fdt_addr_to_cpu(*cell);
+ if (sizep) {
+ const fdt_size_t *size;
+
+ size = (fdt_size_t *)((char *)cell +
+ sizeof(fdt_addr_t));
+ *sizep = fdt_size_to_cpu(*size);
+ debug("addr=%p, size=%p\n", (void *)addr,
+ (void *)*sizep);
+ } else {
+ debug("%p\n", (void *)addr);
+ }
+ return addr;
+ }
+ debug("(not found)\n");
+ return FDT_ADDR_T_NONE;
}
fdt_addr_t fdtdec_get_addr(const void *blob, int node,
const char *prop_name)
{
- const fdt_addr_t *cell;
- int len;
-
- debug("get_addr: %s\n", prop_name);
- cell = fdt_getprop(blob, node, prop_name, &len);
- if (cell && (len == sizeof(fdt_addr_t) ||
- len == sizeof(fdt_addr_t) * 2))
- return fdt_addr_to_cpu(*cell);
- return FDT_ADDR_T_NONE;
+ return fdtdec_get_addr_size(blob, node, prop_name, NULL);
}
s32 fdtdec_get_int(const void *blob, int node, const char *prop_name,
const s32 *cell;
int len;
- debug("get_size: %s\n", prop_name);
+ debug("%s: %s: ", __func__, prop_name);
cell = fdt_getprop(blob, node, prop_name, &len);
- if (cell && len >= sizeof(s32))
- return fdt32_to_cpu(cell[0]);
+ if (cell && len >= sizeof(s32)) {
+ s32 val = fdt32_to_cpu(cell[0]);
+
+ debug("%#x (%d)\n", val, val);
+ return val;
+ }
+ debug("(not found)\n");
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;
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;
/* 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]);
*/
int fdtdec_prepare_fdt(void)
{
- if (((uintptr_t)gd->fdt_blob & 3) || fdt_check_header(gd->fdt_blob)) {
+ if (!gd->fdt_blob || ((uintptr_t)gd->fdt_blob & 3) ||
+ fdt_check_header(gd->fdt_blob)) {
printf("No valid FDT found - please append one to U-Boot "
"binary, use u-boot-dtb.bin or define "
- "CONFIG_OF_EMBED\n");
+ "CONFIG_OF_EMBED. For sandbox, use -d <file.dtb>\n");
return -1;
}
return 0;
const u32 *phandle;
int lookup;
+ debug("%s: %s\n", __func__, prop_name);
phandle = fdt_getprop(blob, node, prop_name, NULL);
if (!phandle)
return -FDT_ERR_NOTFOUND;
* @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;
assert(max_count > 0);
prop = fdt_get_property(blob, node, prop_name, &len);
if (!prop) {
- debug("FDT: %s: property '%s' missing\n", __func__, prop_name);
+ debug("%s: property '%s' missing\n", __func__, prop_name);
return -FDT_ERR_NOTFOUND;
}
cell = (u32 *)prop->data;
len /= sizeof(u32) * 3; /* 3 cells per GPIO record */
if (len > max_count) {
- debug("FDT: %s: too many GPIOs / cells for "
+ debug(" %s: too many GPIOs / cells for "
"property '%s'\n", __func__, prop_name);
return -FDT_ERR_BADLAYOUT;
}
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)
{
/*
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;
+}
projects / karo-tx-uboot.git / blobdiff