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Diffstat (limited to 'arch/powerpc/cpu/mpc85xx')
-rw-r--r--arch/powerpc/cpu/mpc85xx/liodn.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/liodn.c b/arch/powerpc/cpu/mpc85xx/liodn.c
index e97388c7ab..2e533672f3 100644
--- a/arch/powerpc/cpu/mpc85xx/liodn.c
+++ b/arch/powerpc/cpu/mpc85xx/liodn.c
@@ -254,6 +254,56 @@ static void fdt_fixup_srio_liodn(void *blob, struct srio_liodn_id_table *tbl)
}
#endif
+#define CONFIG_SYS_MAX_PCI_EPS 8
+#define CONFIG_SYS_PCI_EP_LIODN_START 256
+
+static void fdt_fixup_pci_liodn_offsets(void *fdt, const char *compat)
+{
+ int off, pci_idx = 0, pci_cnt = 0, i, rc;
+ const uint32_t *base_liodn;
+ uint32_t liodn_offs[CONFIG_SYS_MAX_PCI_EPS + 1] = { 0 };
+
+ /*
+ * Count the number of pci nodes.
+ * It's needed later when the interleaved liodn offsets are generated.
+ */
+ off = fdt_node_offset_by_compatible(fdt, -1, compat);
+ while (off != -FDT_ERR_NOTFOUND) {
+ pci_cnt++;
+ off = fdt_node_offset_by_compatible(fdt, off, compat);
+ }
+
+ for (off = fdt_node_offset_by_compatible(fdt, -1, compat);
+ off != -FDT_ERR_NOTFOUND;
+ off = fdt_node_offset_by_compatible(fdt, off, compat)) {
+ base_liodn = fdt_getprop(fdt, off, "fsl,liodn", &rc);
+ if (!base_liodn) {
+ char path[64];
+
+ if (fdt_get_path(fdt, off, path, sizeof(path)) < 0)
+ strcpy(path, "(unknown)");
+ printf("WARNING Could not get liodn of node %s: %s\n",
+ path, fdt_strerror(rc));
+ continue;
+ }
+ for (i = 0; i < CONFIG_SYS_MAX_PCI_EPS; i++)
+ liodn_offs[i + 1] = CONFIG_SYS_PCI_EP_LIODN_START +
+ i * pci_cnt + pci_idx - *base_liodn;
+ rc = fdt_setprop(fdt, off, "fsl,liodn-offset-list",
+ liodn_offs, sizeof(liodn_offs));
+ if (rc) {
+ char path[64];
+
+ if (fdt_get_path(fdt, off, path, sizeof(path)) < 0)
+ strcpy(path, "(unknown)");
+ printf("WARNING Unable to set fsl,liodn-offset-list for "
+ "node %s: %s\n", path, fdt_strerror(rc));
+ continue;
+ }
+ pci_idx++;
+ }
+}
+
static void fdt_fixup_liodn_tbl(void *blob, struct liodn_id_table *tbl, int sz)
{
int i;
@@ -303,4 +353,6 @@ void fdt_fixup_liodn(void *blob)
#ifdef CONFIG_SYS_DPAA_RMAN
fdt_fixup_liodn_tbl(blob, rman_liodn_tbl, rman_liodn_tbl_sz);
#endif
+
+ fdt_fixup_pci_liodn_offsets(blob, "fsl,qoriq-pcie-v2.4");
}