Merge git://git.denx.de/u-boot-fsl-qoriq
[oweals/u-boot.git] / lib / fdtdec.c
index c072e54cffa6f9c3ac1955d806bb809f45d024f8..45f3fe7baf8e76505e4b769bb945a62452ba1522 100644 (file)
@@ -5,14 +5,17 @@
 
 #ifndef USE_HOSTCC
 #include <common.h>
+#include <boot_fit.h>
 #include <dm.h>
+#include <dm/of_extra.h>
 #include <errno.h>
-#include <serial.h>
-#include <libfdt.h>
-#include <fdt_support.h>
 #include <fdtdec.h>
+#include <fdt_support.h>
+#include <libfdt.h>
+#include <serial.h>
 #include <asm/sections.h>
 #include <linux/ctype.h>
+#include <linux/lzo.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -32,12 +35,6 @@ static const char * const compat_names[COMPAT_COUNT] = {
        COMPAT(NVIDIA_TEGRA20_EMC, "nvidia,tegra20-emc"),
        COMPAT(NVIDIA_TEGRA20_EMC_TABLE, "nvidia,tegra20-emc-table"),
        COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"),
-       COMPAT(NVIDIA_TEGRA124_PMC, "nvidia,tegra124-pmc"),
-       COMPAT(NVIDIA_TEGRA186_SDMMC, "nvidia,tegra186-sdhci"),
-       COMPAT(NVIDIA_TEGRA210_SDMMC, "nvidia,tegra210-sdhci"),
-       COMPAT(NVIDIA_TEGRA124_SDMMC, "nvidia,tegra124-sdhci"),
-       COMPAT(NVIDIA_TEGRA30_SDMMC, "nvidia,tegra30-sdhci"),
-       COMPAT(NVIDIA_TEGRA20_SDMMC, "nvidia,tegra20-sdhci"),
        COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"),
        COMPAT(NVIDIA_TEGRA210_XUSB_PADCTL, "nvidia,tegra210-xusb-padctl"),
        COMPAT(SMSC_LAN9215, "smsc,lan9215"),
@@ -940,38 +937,6 @@ int fdtdec_decode_region(const void *blob, int node, const char *prop_name,
        return 0;
 }
 
-/**
- * Read a flash entry from the fdt
- *
- * @param blob         FDT blob
- * @param node         Offset of node to read
- * @param name         Name of node being read
- * @param entry                Place to put offset and size of this node
- * @return 0 if ok, -ve on error
- */
-int fdtdec_read_fmap_entry(const void *blob, int node, const char *name,
-                          struct fmap_entry *entry)
-{
-       const char *prop;
-       u32 reg[2];
-
-       if (fdtdec_get_int_array(blob, node, "reg", reg, 2)) {
-               debug("Node '%s' has bad/missing 'reg' property\n", name);
-               return -FDT_ERR_NOTFOUND;
-       }
-       entry->offset = reg[0];
-       entry->length = reg[1];
-       entry->used = fdtdec_get_int(blob, node, "used", entry->length);
-       prop = fdt_getprop(blob, node, "compress", NULL);
-       entry->compress_algo = prop && !strcmp(prop, "lzo") ?
-               FMAP_COMPRESS_LZO : FMAP_COMPRESS_NONE;
-       prop = fdt_getprop(blob, node, "hash", &entry->hash_size);
-       entry->hash_algo = prop ? FMAP_HASH_SHA256 : FMAP_HASH_NONE;
-       entry->hash = (uint8_t *)prop;
-
-       return 0;
-}
-
 u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells)
 {
        u64 number = 0;
@@ -1200,7 +1165,8 @@ int fdtdec_setup_memory_size(void)
        }
 
        gd->ram_size = (phys_size_t)(res.end - res.start + 1);
-       debug("%s: Initial DRAM size %llx\n", __func__, (u64)gd->ram_size);
+       debug("%s: Initial DRAM size %llx\n", __func__,
+             (unsigned long long)gd->ram_size);
 
        return 0;
 }
@@ -1238,9 +1204,66 @@ int fdtdec_setup_memory_banksize(void)
 }
 #endif
 
+#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
+# if CONFIG_IS_ENABLED(MULTI_DTB_FIT_GZIP) ||\
+       CONFIG_IS_ENABLED(MULTI_DTB_FIT_LZO)
+static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
+{
+       size_t sz_out = CONFIG_SPL_MULTI_DTB_FIT_UNCOMPRESS_SZ;
+       ulong sz_in = sz_src;
+       void *dst;
+       int rc;
+
+       if (CONFIG_IS_ENABLED(GZIP))
+               if (gzip_parse_header(src, sz_in) < 0)
+                       return -1;
+       if (CONFIG_IS_ENABLED(LZO))
+               if (!lzop_is_valid_header(src))
+                       return -EBADMSG;
+
+       if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) {
+               dst = malloc(sz_out);
+               if (!dst) {
+                       puts("uncompress_blob: Unable to allocate memory\n");
+                       return -ENOMEM;
+               }
+       } else  {
+#  if CONFIG_IS_ENABLED(MULTI_DTB_FIT_USER_DEFINED_AREA)
+               dst = (void *)CONFIG_VAL(MULTI_DTB_FIT_USER_DEF_ADDR);
+#  else
+               return -ENOTSUPP;
+#  endif
+       }
+
+       if (CONFIG_IS_ENABLED(GZIP))
+               rc = gunzip(dst, sz_out, (u8 *)src, &sz_in);
+       else if (CONFIG_IS_ENABLED(LZO))
+               rc = lzop_decompress(src, sz_in, dst, &sz_out);
+
+       if (rc < 0) {
+               /* not a valid compressed blob */
+               puts("uncompress_blob: Unable to uncompress\n");
+               if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC))
+                       free(dst);
+               return -EBADMSG;
+       }
+       *dstp = dst;
+       return 0;
+}
+# else
+static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
+{
+       return -ENOTSUPP;
+}
+# endif
+#endif
+
 int fdtdec_setup(void)
 {
 #if CONFIG_IS_ENABLED(OF_CONTROL)
+# if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
+       void *fdt_blob;
+# endif
 # ifdef CONFIG_OF_EMBED
        /* Get a pointer to the FDT */
        gd->fdt_blob = __dtb_dt_begin;
@@ -1266,10 +1289,30 @@ int fdtdec_setup(void)
 # endif
 # ifndef CONFIG_SPL_BUILD
        /* Allow the early environment to override the fdt address */
-       gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
+       gd->fdt_blob = (void *)env_get_ulong("fdtcontroladdr", 16,
                                                (uintptr_t)gd->fdt_blob);
 # endif
+
+# if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
+       /*
+        * Try and uncompress the blob.
+        * Unfortunately there is no way to know how big the input blob really
+        * is. So let us set the maximum input size arbitrarily high. 16MB
+        * ought to be more than enough for packed DTBs.
+        */
+       if (uncompress_blob(gd->fdt_blob, 0x1000000, &fdt_blob) == 0)
+               gd->fdt_blob = fdt_blob;
+
+       /*
+        * Check if blob is a FIT images containings DTBs.
+        * If so, pick the most relevant
+        */
+       fdt_blob = locate_dtb_in_fit(gd->fdt_blob);
+       if (fdt_blob)
+               gd->fdt_blob = fdt_blob;
+# endif
 #endif
+
        return fdtdec_prepare_fdt();
 }