X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Ffdtdec.h;h=7fe657d0a0cdbad0d14fb810abfeff8af8fe0893;hb=e81ca88451cf4b692fede0b9c2e3444e4b61e139;hp=2ef3f662cc87c36b7371f16c37c237a42e3650dc;hpb=cc7aebe8198be062ae005448f78c7cdcbba825d4;p=u-boot diff --git a/include/fdtdec.h b/include/fdtdec.h index 2ef3f662cc..7fe657d0a0 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -45,16 +45,6 @@ struct fdt_memory { #define SPL_BUILD 0 #endif -#ifdef CONFIG_OF_CONTROL -# if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_DISABLE_OF_CONTROL) -# define OF_CONTROL 0 -# else -# define OF_CONTROL 1 -# endif -#else -# define OF_CONTROL 0 -#endif - /* * Information about a resource. start is the first address of the resource * and end is the last address (inclusive). The length of the resource will @@ -128,7 +118,6 @@ enum fdt_compat_id { COMPAT_UNKNOWN, COMPAT_NVIDIA_TEGRA20_EMC, /* Tegra20 memory controller */ 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_TEGRA124_DC, /* Tegra 124 Display controller */ @@ -139,9 +128,6 @@ enum fdt_compat_id { COMPAT_NVIDIA_TEGRA124_SDMMC, /* Tegra124 SDMMC controller */ COMPAT_NVIDIA_TEGRA30_SDMMC, /* Tegra30 SDMMC controller */ COMPAT_NVIDIA_TEGRA20_SDMMC, /* Tegra20 SDMMC controller */ - COMPAT_NVIDIA_TEGRA124_PCIE, /* Tegra 124 PCIe controller */ - COMPAT_NVIDIA_TEGRA30_PCIE, /* Tegra 30 PCIe controller */ - COMPAT_NVIDIA_TEGRA20_PCIE, /* Tegra 20 PCIe controller */ COMPAT_NVIDIA_TEGRA124_XUSB_PADCTL, /* Tegra124 XUSB pad controller */ COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL, @@ -164,8 +150,6 @@ enum fdt_compat_id { COMPAT_MAXIM_MAX77686_PMIC, /* MAX77686 PMIC */ COMPAT_GENERIC_SPI_FLASH, /* Generic SPI Flash chip */ COMPAT_MAXIM_98095_CODEC, /* MAX98095 Codec */ - COMPAT_INFINEON_SLB9635_TPM, /* Infineon SLB9635 TPM */ - COMPAT_INFINEON_SLB9645_TPM, /* Infineon SLB9645 TPM */ COMPAT_SAMSUNG_EXYNOS5_I2C, /* Exynos5 High Speed I2C Controller */ COMPAT_SANDBOX_LCD_SDL, /* Sandbox LCD emulation with SDL */ COMPAT_SAMSUNG_EXYNOS_SYSMMU, /* Exynos sysmmu */ @@ -182,6 +166,7 @@ enum fdt_compat_id { COMPAT_INTEL_PCH, /* Intel PCH */ COMPAT_INTEL_IRQ_ROUTER, /* Intel Interrupt Router */ COMPAT_ALTERA_SOCFPGA_DWMAC, /* SoCFPGA Ethernet controller */ + COMPAT_ALTERA_SOCFPGA_DWMMC, /* SoCFPGA DWMMC controller */ COMPAT_INTEL_BAYTRAIL_FSP, /* Intel Bay Trail FSP */ COMPAT_INTEL_BAYTRAIL_FSP_MDP, /* Intel FSP memory-down params */ @@ -306,10 +291,90 @@ int fdtdec_next_compatible(const void *blob, int node, int fdtdec_next_compatible_subnode(const void *blob, int node, enum fdt_compat_id id, int *depthp); -/** - * Look up an address property in a node and return it as an address. - * The property must hold either one address with no trailing data or - * one address with a length. This is only tested on 32-bit machines. +/* + * Look up an address property in a node and return the parsed address, and + * optionally the parsed size. + * + * This variant assumes a known and fixed number of cells are used to + * represent the address and size. + * + * You probably don't want to use this function directly except to parse + * non-standard properties, and never to parse the "reg" property. Instead, + * use one of the "auto" variants below, which automatically honor the + * #address-cells and #size-cells properties in the parent node. + * + * @param blob FDT blob + * @param node node to examine + * @param prop_name name of property to find + * @param index which address to retrieve from a list of addresses. Often 0. + * @param na the number of cells used to represent an address + * @param ns the number of cells used to represent a size + * @param sizep a pointer to store the size into. Use NULL if not required + * @return address, if found, or FDT_ADDR_T_NONE if not + */ +fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node, + const char *prop_name, int index, int na, int ns, + fdt_size_t *sizep); + +/* + * Look up an address property in a node and return the parsed address, and + * optionally the parsed size. + * + * This variant automatically determines the number of cells used to represent + * the address and size by parsing the provided parent node's #address-cells + * and #size-cells properties. + * + * @param blob FDT blob + * @param parent parent node of @node + * @param node node to examine + * @param prop_name name of property to find + * @param index which address to retrieve from a list of addresses. Often 0. + * @param sizep a pointer to store the size into. Use NULL if not required + * @return address, if found, or FDT_ADDR_T_NONE if not + */ +fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent, + int node, const char *prop_name, int index, fdt_size_t *sizep); + +/* + * Look up an address property in a node and return the parsed address, and + * optionally the parsed size. + * + * This variant automatically determines the number of cells used to represent + * the address and size by parsing the parent node's #address-cells + * and #size-cells properties. The parent node is automatically found. + * + * The automatic parent lookup implemented by this function is slow. + * Consequently, fdtdec_get_addr_size_auto_parent() should be used where + * possible. + * + * @param blob FDT blob + * @param parent parent node of @node + * @param node node to examine + * @param prop_name name of property to find + * @param index which address to retrieve from a list of addresses. Often 0. + * @param sizep a pointer to store the size into. Use NULL if not required + * @return address, if found, or FDT_ADDR_T_NONE if not + */ +fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node, + const char *prop_name, int index, fdt_size_t *sizep); + +/* + * Look up an address property in a node and return the parsed address. + * + * This variant hard-codes the number of cells used to represent the address + * and size based on sizeof(fdt_addr_t) and sizeof(fdt_size_t). It also + * always returns the first address value in the property (index 0). + * + * Use of this function is not recommended due to the hard-coding of cell + * counts. There is no programmatic validation that these hard-coded values + * actually match the device tree content in any way at all. This assumption + * can be satisfied by manually ensuring CONFIG_PHYS_64BIT is appropriately + * set in the U-Boot build and exercising strict control over DT content to + * ensure use of matching #address-cells/#size-cells properties. However, this + * approach is error-prone; those familiar with DT will not expect the + * assumption to exist, and could easily invalidate it. If the assumption is + * invalidated, this function will not report the issue, and debugging will + * be required. Instead, use fdtdec_get_addr_size_auto_parent(). * * @param blob FDT blob * @param node node to examine @@ -319,14 +384,29 @@ int fdtdec_next_compatible_subnode(const void *blob, int node, fdt_addr_t fdtdec_get_addr(const void *blob, int node, const char *prop_name); -/** - * Look up an address property in a node and return it as an address. - * The property must hold one address with a length. This is only tested - * on 32-bit machines. +/* + * Look up an address property in a node and return the parsed address, and + * optionally the parsed size. + * + * This variant hard-codes the number of cells used to represent the address + * and size based on sizeof(fdt_addr_t) and sizeof(fdt_size_t). It also + * always returns the first address value in the property (index 0). + * + * Use of this function is not recommended due to the hard-coding of cell + * counts. There is no programmatic validation that these hard-coded values + * actually match the device tree content in any way at all. This assumption + * can be satisfied by manually ensuring CONFIG_PHYS_64BIT is appropriately + * set in the U-Boot build and exercising strict control over DT content to + * ensure use of matching #address-cells/#size-cells properties. However, this + * approach is error-prone; those familiar with DT will not expect the + * assumption to exist, and could easily invalidate it. If the assumption is + * invalidated, this function will not report the issue, and debugging will + * be required. Instead, use fdtdec_get_addr_size_auto_parent(). * * @param blob FDT blob * @param node node to examine * @param prop_name name of property to find + * @param sizep a pointer to store the size into. Use NULL if not required * @return address, if found, or FDT_ADDR_T_NONE if not */ fdt_addr_t fdtdec_get_addr_size(const void *blob, int node, @@ -405,6 +485,19 @@ int fdtdec_get_pci_bar32(const void *blob, int node, s32 fdtdec_get_int(const void *blob, int node, const char *prop_name, s32 default_val); +/** + * Unsigned version of fdtdec_get_int. The property must have at least + * 4 bytes of data. The value of the first cell is returned. + * + * @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 unsigned integer value, if found, or default_val if not + */ +unsigned int fdtdec_get_uint(const void *blob, int node, const char *prop_name, + unsigned int default_val); + /** * Get a variable-sized number from a property * @@ -544,7 +637,16 @@ int fdtdec_get_alias_seq(const void *blob, const char *base, int node, int *seqp); /** - * Get the offset of the given chosen node + * Get a property from the /chosen node + * + * @param blob Device tree blob (if NULL, then NULL is returned) + * @param name Property name to look up + * @return Value of property, or NULL if it does not exist + */ +const char *fdtdec_get_chosen_prop(const void *blob, const char *name); + +/** + * Get the offset of the given /chosen node * * This looks up a property in /chosen containing the path to another node, * then finds the offset of that node.