X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Ffdtdec.h;h=f77d195630bc088a6d2c82d62f2ee6e3ebb24162;hb=9a32084ea0cf55d22384f083002ee9932e074f31;hp=0b140752ffb058c4fa673b10fe6a3ff6e751aab8;hpb=5675b509165b67465a20e5cf71e07f40b449ef0c;p=u-boot

diff --git a/include/fdtdec.h b/include/fdtdec.h
index 0b140752ff..f77d195630 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -40,10 +40,12 @@
 typedef u64 fdt_addr_t;
 #define FDT_ADDR_T_NONE (-1ULL)
 #define fdt_addr_to_cpu(reg) be64_to_cpu(reg)
+#define fdt_size_to_cpu(reg) be64_to_cpu(reg)
 #else
 typedef u32 fdt_addr_t;
 #define FDT_ADDR_T_NONE (-1U)
 #define fdt_addr_to_cpu(reg) be32_to_cpu(reg)
+#define fdt_size_to_cpu(reg) be32_to_cpu(reg)
 #endif
 
 /* Information obtained about memory from the FDT */
@@ -66,6 +68,17 @@ enum fdt_compat_id {
 	COMPAT_NVIDIA_TEGRA20_EMC_TABLE, /* Tegra20 memory timing table */
 	COMPAT_NVIDIA_TEGRA20_KBC,	/* Tegra20 Keyboard */
 	COMPAT_NVIDIA_TEGRA20_NAND,	/* Tegra2 NAND controller */
+	COMPAT_NVIDIA_TEGRA20_PWM,	/* Tegra 2 PWM controller */
+	COMPAT_NVIDIA_TEGRA20_DC,	/* Tegra 2 Display controller */
+	COMPAT_SMSC_LAN9215,		/* SMSC 10/100 Ethernet LAN9215 */
+	COMPAT_SAMSUNG_EXYNOS5_SROMC,	/* Exynos5 SROMC */
+	COMPAT_SAMSUNG_S3C2440_I2C,	/* Exynos I2C Controller */
+	COMPAT_SAMSUNG_EXYNOS5_SOUND,	/* Exynos Sound */
+	COMPAT_WOLFSON_WM8994_CODEC,	/* Wolfson WM8994 Sound Codec */
+	COMPAT_SAMSUNG_EXYNOS_SPI,	/* Exynos SPI */
+	COMPAT_SAMSUNG_EXYNOS_EHCI,	/* Exynos EHCI controller */
+	COMPAT_SAMSUNG_EXYNOS_USB_PHY,	/* Exynos phy controller for usb2.0 */
+	COMPAT_MAXIM_MAX77686_PMIC,	/* MAX77686 PMIC */
 
 	COMPAT_COUNT,
 };
@@ -87,6 +100,22 @@ struct fdt_gpio_state {
 /* This tells us whether a fdt_gpio_state record is valid or not */
 #define fdt_gpio_isvalid(x) ((x)->gpio != FDT_GPIO_NONE)
 
+/**
+ * Read the GPIO taking into account the polarity of the pin.
+ *
+ * @param gpio		pointer to the decoded gpio
+ * @return value of the gpio if successful, < 0 if unsuccessful
+ */
+int fdtdec_get_gpio(struct fdt_gpio_state *gpio);
+
+/**
+ * Write the GPIO taking into account the polarity of the pin.
+ *
+ * @param gpio		pointer to the decoded gpio
+ * @return 0 if successful
+ */
+int fdtdec_set_gpio(struct fdt_gpio_state *gpio, int val);
+
 /**
  * Find the next numbered alias for a peripheral. This is used to enumerate
  * all the peripherals of a certain type.
@@ -107,6 +136,19 @@ struct fdt_gpio_state {
 int fdtdec_next_alias(const void *blob, const char *name,
 		enum fdt_compat_id id, int *upto);
 
+/**
+ * Find the compatible ID for a given node.
+ *
+ * Generally each node has at least one compatible string attached to it.
+ * This function looks through our list of known compatible strings and
+ * returns the corresponding ID which matches the compatible string.
+ *
+ * @param blob		FDT blob to use
+ * @param node		Node containing compatible string to find
+ * @return compatible ID, or COMPAT_UNKNOWN if we cannot find a match
+ */
+enum fdt_compat_id fdtdec_lookup(const void *blob, int node);
+
 /**
  * Find the next compatible node for a peripheral.
  *
@@ -166,6 +208,21 @@ fdt_addr_t fdtdec_get_addr(const void *blob, int node,
 s32 fdtdec_get_int(const void *blob, int node, const char *prop_name,
 		s32 default_val);
 
+/**
+ * Look up a 64-bit integer property in a node and return it. The property
+ * must have at least 8 bytes of data (2 cells). The first two cells are
+ * concatenated to form a 8 bytes value, where the first cell is top half and
+ * the second cell is bottom half.
+ *
+ * @param blob	FDT blob
+ * @param node	node to examine
+ * @param prop_name	name of property to find
+ * @param default_val	default value to return if the property is not found
+ * @return integer value, if found, or default_val if not
+ */
+uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,
+		uint64_t default_val);
+
 /**
  * Checks whether a node is enabled.
  * This looks for a 'status' property. If this exists, then returns 1 if
@@ -342,6 +399,22 @@ int fdtdec_get_bool(const void *blob, int node, const char *prop_name);
 int fdtdec_decode_gpio(const void *blob, int node, const char *prop_name,
 		struct fdt_gpio_state *gpio);
 
+/**
+ * Decode a list of GPIOs from an FDT. This creates a list of GPIOs with no
+ * terminating item.
+ *
+ * @param blob         FDT blob to use
+ * @param node         Node to look at
+ * @param prop_name    Node property name
+ * @param gpio         Array of gpio elements to fill from FDT. This will be
+ *                     untouched if either 0 or an error is returned
+ * @param max_count    Maximum number of elements allowed
+ * @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.
+ */
+int fdtdec_decode_gpios(const void *blob, int node, const char *prop_name,
+		struct fdt_gpio_state *gpio, int max_count);
+
 /**
  * Set up a GPIO pin according to the provided gpio information. At present this
  * just requests the GPIO.
@@ -354,6 +427,39 @@ int fdtdec_decode_gpio(const void *blob, int node, const char *prop_name,
  */
 int fdtdec_setup_gpio(struct fdt_gpio_state *gpio);
 
+/**
+ * Look in the FDT for a config item with the given name and return its value
+ * as a 32-bit integer. The property must have at least 4 bytes of data. The
+ * value of the first cell is returned.
+ *
+ * @param blob		FDT blob to use
+ * @param prop_name	Node property name
+ * @param default_val	default value to return if the property is not found
+ * @return integer value, if found, or default_val if not
+ */
+int fdtdec_get_config_int(const void *blob, const char *prop_name,
+		int default_val);
+
+/**
+ * Look in the FDT for a config item with the given name
+ * and return whether it exists.
+ *
+ * @param blob		FDT blob
+ * @param prop_name	property name to look up
+ * @return 1, if it exists, or 0 if not
+ */
+int fdtdec_get_config_bool(const void *blob, const char *prop_name);
+
+/**
+ * Look in the FDT for a config item with the given name and return its value
+ * as a string.
+ *
+ * @param blob          FDT blob
+ * @param prop_name     property name to look up
+ * @returns property string, NULL on error.
+ */
+char *fdtdec_get_config_string(const void *blob, const char *prop_name);
+
 /*
  * Look up a property in a node and return its contents in a byte
  * array of given length. The property must have at least enough data for
@@ -385,4 +491,21 @@ int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name,
  */
 const u8 *fdtdec_locate_byte_array(const void *blob, int node,
 			     const char *prop_name, int count);
+
+/**
+ * Look up a property in a node which contains a memory region address and
+ * size. Then return a pointer to this address.
+ *
+ * The property must hold one address with a length. This is only tested on
+ * 32-bit machines.
+ *
+ * @param blob		FDT blob
+ * @param node		node to examine
+ * @param prop_name	name of property to find
+ * @param ptrp		returns pointer to region, or NULL if no address
+ * @param size		returns size of region
+ * @return 0 if ok, -1 on error (propery not found)
+ */
+int fdtdec_decode_region(const void *blob, int node,
+		const char *prop_name, void **ptrp, size_t *size);
 #endif