diff options
| author | Julius Werner <jwerner@chromium.org> | 2019-05-03 18:29:28 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-06-04 11:23:48 +0000 |
| commit | fbec63d15f761e01c934078570acbef779e707ba (patch) | |
| tree | 64adbebdfed8205b3dfe7b12d490f32759a830b2 /src/soc | |
| parent | f36d53c6539ec9e221a5005f00a56960f791a81f (diff) | |
device_tree: Have absolute paths start with '/'
Currently DT paths are *not* expected to start with '/'. This is not
what the spec says (see Devicetree Specification v0.2, 2.2.3 Path Names)
and also not what is done by Linux.
Change dt_find_node_by_path() to expect paths to start with '/' and add
a leading '/' to all DT path strings. Besides the compatibility with the
spec this change is also needed to support aliases in the future.
This patch was adapted from depthcharge's http://crosreview.com/1252770
Change-Id: Ibdf59ccbb4ead38c6193b630642fd1f1e847dd89
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32865
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/cavium/cn81xx/soc.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/soc/cavium/cn81xx/soc.c b/src/soc/cavium/cn81xx/soc.c index 20542e5fa2..efe7d6d204 100644 --- a/src/soc/cavium/cn81xx/soc.c +++ b/src/soc/cavium/cn81xx/soc.c @@ -185,7 +185,7 @@ static int dt_platform_fixup(struct device_tree_fixup *fixup, size_t i; /* Set the sclk clock rate. */ - dt_node = dt_find_node_by_path(tree, "soc@0/sclk", NULL, NULL, 0); + dt_node = dt_find_node_by_path(tree, "/soc@0/sclk", NULL, NULL, 0); if (dt_node) { const u32 freq = thunderx_get_io_clock(); printk(BIOS_INFO, "%s: Set SCLK to %u Hz\n", __func__, freq); @@ -195,7 +195,7 @@ static int dt_platform_fixup(struct device_tree_fixup *fixup, __func__); /* Set refclkuaa clock rate. */ - dt_node = dt_find_node_by_path(tree, "soc@0/refclkuaa", NULL, + dt_node = dt_find_node_by_path(tree, "/soc@0/refclkuaa", NULL, NULL, 0); if (dt_node) { const u32 freq = uart_platform_refclk(); @@ -211,7 +211,7 @@ static int dt_platform_fixup(struct device_tree_fixup *fixup, char path[32]; const uint64_t addr = UAAx_PF_BAR0(i); /* Remove the node */ - snprintf(path, sizeof(path), "soc@0/serial@%llx", addr); + snprintf(path, sizeof(path), "/soc@0/serial@%llx", addr); dt_node = dt_find_node_by_path(tree, path, NULL, NULL, 0); if (!dt_node || uart_is_enabled(i)) { printk(BIOS_INFO, "%s: ignoring %s\n", __func__, path); @@ -227,7 +227,7 @@ static int dt_platform_fixup(struct device_tree_fixup *fixup, u32 phandle = 0; const uint64_t addr = PEM_PEMX_PF_BAR0(i); /* Remove the node */ - snprintf(path, sizeof(path), "soc@0/pci@%llx", addr); + snprintf(path, sizeof(path), "/soc@0/pci@%llx", addr); dt_node = dt_find_node_by_path(tree, path, NULL, NULL, 0); if (!dt_node || bdk_pcie_is_running(0, i)) { printk(BIOS_INFO, "%s: ignoring %s\n", __func__, path); @@ -239,7 +239,7 @@ static int dt_platform_fixup(struct device_tree_fixup *fixup, list_remove(&dt_node->list_node); /* Remove phandle to non existing nodes */ - snprintf(path, sizeof(path), "soc@0/smmu0@%llx", SMMU_PF_BAR0); + snprintf(path, sizeof(path), "/soc@0/smmu0@%llx", SMMU_PF_BAR0); dt_node = dt_find_node_by_path(tree, path, NULL, NULL, 0); if (!dt_node) { printk(BIOS_ERR, "%s: SMMU entry not found\n", |