#include <mapmem.h>
#include <linux/libfdt.h>
#include <serial.h>
+#include <asm/global_data.h>
#include <asm/sections.h>
#include <linux/ctype.h>
#include <linux/lzo.h>
COMPAT(NVIDIA_TEGRA20_NAND, "nvidia,tegra20-nand"),
COMPAT(NVIDIA_TEGRA124_XUSB_PADCTL, "nvidia,tegra124-xusb-padctl"),
COMPAT(NVIDIA_TEGRA210_XUSB_PADCTL, "nvidia,tegra210-xusb-padctl"),
- COMPAT(SMSC_LAN9215, "smsc,lan9215"),
- COMPAT(SAMSUNG_EXYNOS5_SROMC, "samsung,exynos-sromc"),
COMPAT(SAMSUNG_EXYNOS_USB_PHY, "samsung,exynos-usb-phy"),
COMPAT(SAMSUNG_EXYNOS5_USB3_PHY, "samsung,exynos5250-usb3-phy"),
COMPAT(SAMSUNG_EXYNOS_TMU, "samsung,exynos-tmu"),
COMPAT(ALTERA_SOCFPGA_CLK_INIT, "altr,socfpga-a10-clk-init")
};
+static const char *const fdt_src_name[] = {
+ [FDTSRC_SEPARATE] = "separate",
+ [FDTSRC_FIT] = "fit",
+ [FDTSRC_BOARD] = "board",
+ [FDTSRC_EMBED] = "embed",
+ [FDTSRC_ENV] = "env",
+};
+
+const char *fdtdec_get_srcname(void)
+{
+ return fdt_src_name[gd->fdt_src];
+}
+
const char *fdtdec_get_compatible(enum fdt_compat_id id)
{
/* We allow reading of the 'unknown' ID for testing purposes */
return fdtdec_get_addr_size(blob, node, prop_name, NULL);
}
-#if CONFIG_IS_ENABLED(PCI) && defined(CONFIG_DM_PCI)
int fdtdec_get_pci_vendev(const void *blob, int node, u16 *vendor, u16 *device)
{
const char *list, *end;
return -EINVAL;
barnum = (barnum - PCI_BASE_ADDRESS_0) / 4;
+
*bar = dm_pci_read_bar32(dev, barnum);
return 0;
return 0;
}
-#endif
uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,
uint64_t default_val)
continue;
/* Get the alias number */
- number = simple_strtoul(path + name_len, NULL, 10);
+ number = dectoul(path + name_len, NULL);
if (number < 0 || number >= maxcount) {
debug("%s: warning: alias '%s' is out of range\n",
__func__, path);
* Adding an extra check to distinguish DT nodes with
* same name
*/
- if (IS_ENABLED(CONFIG_PHANDLE_CHECK_SEQ)) {
- if (fdt_get_phandle(blob, offset) !=
- fdt_get_phandle(blob, fdt_path_offset(blob, prop)))
- continue;
- }
+ if (offset != fdt_path_offset(blob, prop))
+ continue;
val = trailing_strtol(name);
if (val != -1) {
* @param min_len minimum property length in bytes
* @param err 0 if ok, or -FDT_ERR_NOTFOUND if the property is not
found, or -FDT_ERR_BADLAYOUT if not enough data
- * @return pointer to cell, which is only valid if err == 0
+ * Return: pointer to cell, which is only valid if err == 0
*/
static const void *get_prop_check_min_len(const void *blob, int node,
const char *prop_name, int min_len,
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;
-}
-
u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells)
{
u64 number = 0;
while (ptr + na + ns <= end) {
if (i == index) {
- res->start = fdtdec_get_number(ptr, na);
+ if (CONFIG_IS_ENABLED(OF_TRANSLATE))
+ res->start = fdt_translate_address(fdt, node, ptr);
+ else
+ res->start = fdtdec_get_number(ptr, na);
+
res->end = res->start;
res->end += fdtdec_get_number(&ptr[na], ns) - 1;
return 0;
return 0;
}
-#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)
{
+#if CONFIG_IS_ENABLED(MULTI_DTB_FIT_GZIP) ||\
+ CONFIG_IS_ENABLED(MULTI_DTB_FIT_LZO)
size_t sz_out = CONFIG_VAL(MULTI_DTB_FIT_UNCOMPRESS_SZ);
bool gzip = 0, lzo = 0;
ulong sz_in = sz_src;
return -ENOMEM;
}
} else {
-# if CONFIG_IS_ENABLED(MULTI_DTB_FIT_USER_DEFINED_AREA)
+# if CONFIG_IS_ENABLED(MULTI_DTB_FIT_USER_DEFINED_AREA)
dst = (void *)CONFIG_VAL(MULTI_DTB_FIT_USER_DEF_ADDR);
-# else
+# else
return -ENOTSUPP;
-# endif
+# endif
}
if (CONFIG_IS_ENABLED(GZIP) && gzip)
return -EBADMSG;
}
*dstp = dst;
- return 0;
-}
-# else
-static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
-{
+#else
+ *dstp = (void *)src;
*dstp = (void *)src;
+#endif
return 0;
}
-# endif
-#endif
-#if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
-/*
- * For CONFIG_OF_SEPARATE, the board may optionally implement this to
- * provide and/or fixup the fdt.
+/**
+ * fdt_find_separate() - Find a devicetree at the end of the image
+ *
+ * Return: pointer to FDT blob
*/
-__weak void *board_fdt_blob_setup(void)
+static void *fdt_find_separate(void)
{
void *fdt_blob = NULL;
+
+ if (IS_ENABLED(CONFIG_SANDBOX))
+ return NULL;
+
#ifdef CONFIG_SPL_BUILD
/* FDT is at end of BSS unless it is in a different memory region */
- if (CONFIG_IS_ENABLED(SEPARATE_BSS))
+ if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS))
fdt_blob = (ulong *)&_image_binary_end;
else
fdt_blob = (ulong *)&__bss_end;
/* FDT is at end of image */
fdt_blob = (ulong *)&_end;
#endif
+
return fdt_blob;
}
-#endif
int fdtdec_set_ethernet_mac_address(void *fdt, const u8 *mac, size_t size)
{
int fdtdec_add_reserved_memory(void *blob, const char *basename,
const struct fdt_memory *carveout,
- uint32_t *phandlep, bool no_map)
+ const char **compatibles, unsigned int count,
+ uint32_t *phandlep, unsigned long flags)
{
fdt32_t cells[4] = {}, *ptr = cells;
uint32_t upper, lower, phandle;
if (node < 0)
return node;
+ if (flags & FDTDEC_RESERVED_MEMORY_NO_MAP) {
+ err = fdt_setprop(blob, node, "no-map", NULL, 0);
+ if (err < 0)
+ return err;
+ }
+
if (phandlep) {
err = fdt_generate_phandle(blob, &phandle);
if (err < 0)
if (err < 0)
return err;
- if (no_map) {
- err = fdt_setprop(blob, node, "no-map", NULL, 0);
+ if (compatibles && count > 0) {
+ size_t length = 0, len = 0;
+ unsigned int i;
+ char *buffer;
+
+ for (i = 0; i < count; i++)
+ length += strlen(compatibles[i]) + 1;
+
+ buffer = malloc(length);
+ if (!buffer)
+ return -FDT_ERR_INTERNAL;
+
+ for (i = 0; i < count; i++)
+ len += strlcpy(buffer + len, compatibles[i],
+ length - len) + 1;
+
+ err = fdt_setprop(blob, node, "compatible", buffer, length);
+ free(buffer);
if (err < 0)
return err;
}
return 0;
}
-int fdtdec_get_carveout(const void *blob, const char *node, const char *name,
- unsigned int index, struct fdt_memory *carveout)
+int fdtdec_get_carveout(const void *blob, const char *node,
+ const char *prop_name, unsigned int index,
+ struct fdt_memory *carveout, const char **name,
+ const char ***compatiblesp, unsigned int *countp,
+ unsigned long *flags)
{
const fdt32_t *prop;
uint32_t phandle;
if (offset < 0)
return offset;
- prop = fdt_getprop(blob, offset, name, &len);
+ prop = fdt_getprop(blob, offset, prop_name, &len);
if (!prop) {
- debug("failed to get %s for %s\n", name, node);
+ debug("failed to get %s for %s\n", prop_name, node);
return -FDT_ERR_NOTFOUND;
}
if (len < (sizeof(phandle) * (index + 1))) {
debug("invalid phandle index\n");
- return -FDT_ERR_BADPHANDLE;
+ return -FDT_ERR_NOTFOUND;
}
phandle = fdt32_to_cpu(prop[index]);
return offset;
}
+ if (name)
+ *name = fdt_get_name(blob, offset, NULL);
+
+ if (compatiblesp) {
+ const char **compatibles = NULL;
+ const char *start, *end, *ptr;
+ unsigned int count = 0;
+
+ prop = fdt_getprop(blob, offset, "compatible", &len);
+ if (!prop)
+ goto skip_compat;
+
+ start = ptr = (const char *)prop;
+ end = start + len;
+
+ while (ptr < end) {
+ ptr = strchrnul(ptr, '\0');
+ count++;
+ ptr++;
+ }
+
+ compatibles = malloc(sizeof(ptr) * count);
+ if (!compatibles)
+ return -FDT_ERR_INTERNAL;
+
+ ptr = start;
+ count = 0;
+
+ while (ptr < end) {
+ compatibles[count] = ptr;
+ ptr = strchrnul(ptr, '\0');
+ count++;
+ ptr++;
+ }
+
+skip_compat:
+ *compatiblesp = compatibles;
+
+ if (countp)
+ *countp = count;
+ }
+
carveout->start = fdtdec_get_addr_size_auto_noparent(blob, offset,
"reg", 0, &size,
true);
carveout->end = carveout->start + size - 1;
+ if (flags) {
+ *flags = 0;
+
+ if (fdtdec_get_bool(blob, offset, "no-map"))
+ *flags |= FDTDEC_RESERVED_MEMORY_NO_MAP;
+ }
+
return 0;
}
int fdtdec_set_carveout(void *blob, const char *node, const char *prop_name,
- unsigned int index, const char *name,
- const struct fdt_memory *carveout)
+ unsigned int index, const struct fdt_memory *carveout,
+ const char *name, const char **compatibles,
+ unsigned int count, unsigned long flags)
{
uint32_t phandle;
int err, offset, len;
fdt32_t value;
void *prop;
- err = fdtdec_add_reserved_memory(blob, name, carveout, &phandle, false);
+ err = fdtdec_add_reserved_memory(blob, name, carveout, compatibles,
+ count, &phandle, flags);
if (err < 0) {
debug("failed to add reserved memory: %d\n", err);
return err;
return 0;
}
+/* TODO(sjg@chromium.org): This function should not be weak */
__weak int fdtdec_board_setup(const void *fdt_blob)
{
return 0;
}
-int fdtdec_setup(void)
+/**
+ * setup_multi_dtb_fit() - locate the correct dtb from a FIT
+ *
+ * This supports the CONFIG_MULTI_DTB_FIT feature, looking for the dtb in a
+ * supplied FIT
+ *
+ * It accepts the current value of gd->fdt_blob, which points to the FIT, then
+ * updates that gd->fdt_blob, to point to the chosen dtb so that U-Boot uses the
+ * correct one
+ */
+static void setup_multi_dtb_fit(void)
{
- int ret;
-#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 */
-# ifdef CONFIG_SPL_BUILD
- gd->fdt_blob = __dtb_dt_spl_begin;
-# else
- gd->fdt_blob = __dtb_dt_begin;
-# endif
-# elif defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
- /* Allow the board to override the fdt address. */
- gd->fdt_blob = board_fdt_blob_setup();
-# elif defined(CONFIG_OF_HOSTFILE)
- if (sandbox_read_fdt_from_file()) {
- puts("Failed to read control FDT\n");
- return -1;
- }
-# elif defined(CONFIG_OF_PRIOR_STAGE)
- gd->fdt_blob = (void *)prior_stage_fdt_address;
-# endif
-# ifndef CONFIG_SPL_BUILD
- /* Allow the early environment to override the fdt address */
- gd->fdt_blob = map_sysmem
- (env_get_ulong("fdtcontroladdr", 16,
- (unsigned long)map_to_sysmem(gd->fdt_blob)), 0);
-# endif
+ void *blob;
-# 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;
+ if (uncompress_blob(gd->fdt_blob, 0x1000000, &blob) == 0)
+ gd->fdt_blob = 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->multi_dtb_fit = gd->fdt_blob;
- gd->fdt_blob = fdt_blob;
+ blob = locate_dtb_in_fit(gd->fdt_blob);
+ if (blob) {
+ gd_set_multi_dtb_fit(gd->fdt_blob);
+ gd->fdt_blob = blob;
+ gd->fdt_src = FDTSRC_FIT;
}
+}
-# endif
-#endif
+int fdtdec_setup(void)
+{
+ int ret;
+
+ /* The devicetree is typically appended to U-Boot */
+ if (IS_ENABLED(CONFIG_OF_SEPARATE)) {
+ gd->fdt_blob = fdt_find_separate();
+ gd->fdt_src = FDTSRC_SEPARATE;
+ } else { /* embed dtb in ELF file for testing / development */
+ gd->fdt_blob = dtb_dt_embedded();
+ gd->fdt_src = FDTSRC_EMBED;
+ }
+
+ /* Allow the board to override the fdt address. */
+ if (IS_ENABLED(CONFIG_OF_BOARD)) {
+ gd->fdt_blob = board_fdt_blob_setup(&ret);
+ if (ret)
+ return ret;
+ gd->fdt_src = FDTSRC_BOARD;
+ }
+
+ /* Allow the early environment to override the fdt address */
+ if (!IS_ENABLED(CONFIG_SPL_BUILD)) {
+ ulong addr;
+
+ addr = env_get_hex("fdtcontroladdr", 0);
+ if (addr) {
+ gd->fdt_blob = map_sysmem(addr, 0);
+ gd->fdt_src = FDTSRC_ENV;
+ }
+ }
+
+ if (CONFIG_IS_ENABLED(MULTI_DTB_FIT))
+ setup_multi_dtb_fit();
ret = fdtdec_prepare_fdt();
if (!ret)
return ret;
}
-#if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
int fdtdec_resetup(int *rescan)
{
void *fdt_blob;
* FIT image stillpresent there. Save the time and space
* required to uncompress it again.
*/
- if (gd->multi_dtb_fit) {
- fdt_blob = locate_dtb_in_fit(gd->multi_dtb_fit);
+ if (gd_multi_dtb_fit()) {
+ fdt_blob = locate_dtb_in_fit(gd_multi_dtb_fit());
if (fdt_blob == gd->fdt_blob) {
/*
*rescan = 0;
return 0;
}
-#endif
int fdtdec_decode_ram_size(const void *blob, const char *area, int board_id,
phys_addr_t *basep, phys_size_t *sizep,
projects / platform / kernel / u-boot.git / blobdiff