fm: fdt: Move fman ucode fixup to driver code
Not only powerpc/mpc85xx but also Freescale Layerscape platforms will
use fdt_fixup_fman_firmware() to insert Fman ucode blob into the device
tree. So move the function to Fman driver code.
Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/drivers/net/fm/Makefile b/drivers/net/fm/Makefile
index a3c9f99..493cdc6 100644
--- a/drivers/net/fm/Makefile
+++ b/drivers/net/fm/Makefile
@@ -6,6 +6,7 @@
obj-y += dtsec.o
obj-y += eth.o
+obj-y += fdt.o
obj-y += fm.o
obj-y += init.o
obj-y += tgec.o
diff --git a/drivers/net/fm/fdt.c b/drivers/net/fm/fdt.c
new file mode 100644
index 0000000..830d228
--- /dev/null
+++ b/drivers/net/fm/fdt.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <asm/io.h>
+#include <fsl_qe.h> /* For struct qe_firmware */
+
+#ifdef CONFIG_SYS_DPAA_FMAN
+/**
+ * fdt_fixup_fman_firmware -- insert the Fman firmware into the device tree
+ *
+ * The binding for an Fman firmware node is documented in
+ * Documentation/powerpc/dts-bindings/fsl/dpaa/fman.txt. This node contains
+ * the actual Fman firmware binary data. The operating system is expected to
+ * be able to parse the binary data to determine any attributes it needs.
+ */
+void fdt_fixup_fman_firmware(void *blob)
+{
+ int rc, fmnode, fwnode = -1;
+ uint32_t phandle;
+ struct qe_firmware *fmanfw;
+ const struct qe_header *hdr;
+ unsigned int length;
+ uint32_t crc;
+ const char *p;
+
+ /* The first Fman we find will contain the actual firmware. */
+ fmnode = fdt_node_offset_by_compatible(blob, -1, "fsl,fman");
+ if (fmnode < 0)
+ /* Exit silently if there are no Fman devices */
+ return;
+
+ /* If we already have a firmware node, then also exit silently. */
+ if (fdt_node_offset_by_compatible(blob, -1, "fsl,fman-firmware") > 0)
+ return;
+
+ /* If the environment variable is not set, then exit silently */
+ p = getenv("fman_ucode");
+ if (!p)
+ return;
+
+ fmanfw = (struct qe_firmware *)simple_strtoul(p, NULL, 16);
+ if (!fmanfw)
+ return;
+
+ hdr = &fmanfw->header;
+ length = be32_to_cpu(hdr->length);
+
+ /* Verify the firmware. */
+ if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
+ (hdr->magic[2] != 'F')) {
+ printf("Data at %p is not an Fman firmware\n", fmanfw);
+ return;
+ }
+
+ if (length > CONFIG_SYS_QE_FMAN_FW_LENGTH) {
+ printf("Fman firmware at %p is too large (size=%u)\n",
+ fmanfw, length);
+ return;
+ }
+
+ length -= sizeof(u32); /* Subtract the size of the CRC */
+ crc = be32_to_cpu(*(u32 *)((void *)fmanfw + length));
+ if (crc != crc32_no_comp(0, (void *)fmanfw, length)) {
+ printf("Fman firmware at %p has invalid CRC\n", fmanfw);
+ return;
+ }
+
+ /* Increase the size of the fdt to make room for the node. */
+ rc = fdt_increase_size(blob, fmanfw->header.length);
+ if (rc < 0) {
+ printf("Unable to make room for Fman firmware: %s\n",
+ fdt_strerror(rc));
+ return;
+ }
+
+ /* Create the firmware node. */
+ fwnode = fdt_add_subnode(blob, fmnode, "fman-firmware");
+ if (fwnode < 0) {
+ char s[64];
+ fdt_get_path(blob, fmnode, s, sizeof(s));
+ printf("Could not add firmware node to %s: %s\n", s,
+ fdt_strerror(fwnode));
+ return;
+ }
+ rc = fdt_setprop_string(blob, fwnode, "compatible",
+ "fsl,fman-firmware");
+ if (rc < 0) {
+ char s[64];
+ fdt_get_path(blob, fwnode, s, sizeof(s));
+ printf("Could not add compatible property to node %s: %s\n", s,
+ fdt_strerror(rc));
+ return;
+ }
+ phandle = fdt_create_phandle(blob, fwnode);
+ if (!phandle) {
+ char s[64];
+ fdt_get_path(blob, fwnode, s, sizeof(s));
+ printf("Could not add phandle property to node %s: %s\n", s,
+ fdt_strerror(rc));
+ return;
+ }
+ rc = fdt_setprop(blob, fwnode, "fsl,firmware", fmanfw,
+ fmanfw->header.length);
+ if (rc < 0) {
+ char s[64];
+ fdt_get_path(blob, fwnode, s, sizeof(s));
+ printf("Could not add firmware property to node %s: %s\n", s,
+ fdt_strerror(rc));
+ return;
+ }
+
+ /* Find all other Fman nodes and point them to the firmware node. */
+ while ((fmnode = fdt_node_offset_by_compatible(blob, fmnode,
+ "fsl,fman")) > 0) {
+ rc = fdt_setprop_cell(blob, fmnode, "fsl,firmware-phandle",
+ phandle);
+ if (rc < 0) {
+ char s[64];
+ fdt_get_path(blob, fmnode, s, sizeof(s));
+ printf("Could not add pointer property to node %s: %s\n",
+ s, fdt_strerror(rc));
+ return;
+ }
+ }
+}
+#endif