Merge branch 'master' of git://git.denx.de/u-boot-sunxi

[u-boot] / include / fdtdec.h

diff --git a/include/fdtdec.h b/include/fdtdec.h
index 4afb9ac5012c20d82402b0206cf97bfd20c4b461..58d5b721aa6011eee76e472bca6a91ce95719c3a 100644 (file)
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef __fdtdec_h
@@ -14,7 +14,7 @@
  * changes to support FDT are minimized.
  */
 
-#include <libfdt.h>
+#include <linux/libfdt.h>
 #include <pci.h>
 
 /*
@@ -24,7 +24,7 @@
 typedef phys_addr_t fdt_addr_t;
 typedef phys_size_t fdt_size_t;
 #ifdef CONFIG_PHYS_64BIT
-#define FDT_ADDR_T_NONE (-1ULL)
+#define FDT_ADDR_T_NONE (-1U)
 #define fdt_addr_to_cpu(reg) be64_to_cpu(reg)
 #define fdt_size_to_cpu(reg) be64_to_cpu(reg)
 typedef fdt64_t fdt_val_t;
@@ -41,12 +41,18 @@ struct fdt_memory {
        fdt_addr_t end;
 };
 
+struct bd_info;
+
 #ifdef CONFIG_SPL_BUILD
 #define SPL_BUILD      1
 #else
 #define SPL_BUILD      0
 #endif
 
+#if CONFIG_IS_ENABLED(OF_PRIOR_STAGE)
+extern phys_addr_t prior_stage_fdt_address;
+#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
@@ -136,7 +142,6 @@ enum fdt_compat_id {
        COMPAT_SAMSUNG_EXYNOS_MIPI_DSI, /* Exynos mipi dsi */
        COMPAT_SAMSUNG_EXYNOS_DWMMC,    /* Exynos DWMMC controller */
        COMPAT_SAMSUNG_EXYNOS_MMC,      /* Exynos MMC controller */
-       COMPAT_MAXIM_MAX77686_PMIC,     /* MAX77686 PMIC */
        COMPAT_GENERIC_SPI_FLASH,       /* Generic SPI Flash chip */
        COMPAT_MAXIM_98095_CODEC,       /* MAX98095 Codec */
        COMPAT_SAMSUNG_EXYNOS5_I2C,     /* Exynos5 High Speed I2C Controller */
@@ -161,6 +166,7 @@ enum fdt_compat_id {
        COMPAT_ALTERA_SOCFPGA_F2SDR2,           /* SoCFPGA fpga2SDRAM2 bridge */
        COMPAT_ALTERA_SOCFPGA_FPGA0,            /* SOCFPGA FPGA manager */
        COMPAT_ALTERA_SOCFPGA_NOC,              /* SOCFPGA Arria 10 NOC */
+       COMPAT_ALTERA_SOCFPGA_CLK_INIT,         /* SOCFPGA Arria 10 clk init */
 
        COMPAT_COUNT,
 };
@@ -993,6 +999,40 @@ int fdtdec_setup(void);
  * Called when CONFIG_OF_BOARD is defined, or if CONFIG_OF_SEPARATE is defined
  * and the board implements it.
  */
-void *board_fdt_blob_setup(void);
+
+/*
+ * Decode the size of memory
+ *
+ * RAM size is normally set in a /memory node and consists of a list of
+ * (base, size) cells in the 'reg' property. This information is used to
+ * determine the total available memory as well as the address and size
+ * of each bank.
+ *
+ * Optionally the memory configuration can vary depending on a board id,
+ * typically read from strapping resistors or an EEPROM on the board.
+ *
+ * Finally, memory size can be detected (within certain limits) by probing
+ * the available memory. It is safe to do so within the limits provides by
+ * the board's device tree information. This makes it possible to produce
+ * boards with different memory sizes, where the device tree specifies the
+ * maximum memory configuration, and the smaller memory configuration is
+ * probed.
+ *
+ * This function decodes that information, returning the memory base address,
+ * size and bank information. See the memory.txt binding for full
+ * documentation.
+ *
+ * @param blob         Device tree blob
+ * @param area         Name of node to check (NULL means "/memory")
+ * @param board_id     Board ID to look up
+ * @param basep                Returns base address of first memory bank (NULL to
+ *                     ignore)
+ * @param sizep                Returns total memory size (NULL to ignore)
+ * @param bd           Updated with the memory bank information (NULL to skip)
+ * @return 0 if OK, -ve on error
+ */
+int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id,
+                          phys_addr_t *basep, phys_size_t *sizep,
+                          struct bd_info *bd);
 
 #endif