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@@ -34,7 +34,11 @@
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#define ARMADA_37XX_SPI_DOUT 0xd0010608
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#define ARMADA_37XX_SPI_DIN 0xd001060c
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+#define ETH1_PATH "/soc/internal-regs@d0000000/ethernet@40000"
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+#define MDIO_PATH "/soc/internal-regs@d0000000/mdio@32004"
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+#define SFP_GPIO_PATH "/soc/internal-regs@d0000000/spi@10600/moxtet@1/gpio@0"
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#define PCIE_PATH "/soc/pcie@d0070000"
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+#define SFP_PATH "/sfp"
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DECLARE_GLOBAL_DATA_PTR;
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@@ -459,24 +463,22 @@ int last_stage_init(void)
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}
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break;
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case MOX_MODULE_PCI:
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- if (pci) {
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+ if (pci)
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printf("Error: Only one Mini-PCIe module is supported!\n");
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- } else if (usb) {
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+ else if (usb)
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printf("Error: Mini-PCIe module cannot come after USB 3.0 module!\n");
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- } else if (i && (i != 1 || !passpci)) {
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+ else if (i && (i != 1 || !passpci))
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printf("Error: Mini-PCIe module should be the first connected module or come right after Passthrough Mini-PCIe module!\n");
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- } else {
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+ else
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++pci;
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- }
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break;
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case MOX_MODULE_TOPAZ:
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- if (topaz) {
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+ if (topaz)
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printf("Error: Only one Topaz module is supported!\n");
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- } else if (peridot >= 3) {
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+ else if (peridot >= 3)
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printf("Error: At most two Peridot modules can come before Topaz module!\n");
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- } else {
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+ else
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++topaz;
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- }
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break;
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case MOX_MODULE_PERIDOT:
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if (sfp || topaz) {
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@@ -489,24 +491,22 @@ int last_stage_init(void)
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}
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break;
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case MOX_MODULE_USB3:
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- if (pci) {
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+ if (pci)
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printf("Error: USB 3.0 module cannot come after Mini-PCIe module!\n");
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- } else if (usb) {
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+ else if (usb)
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printf("Error: Only one USB 3.0 module is supported!\n");
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- } else if (i && (i != 1 || !passpci)) {
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+ else if (i && (i != 1 || !passpci))
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printf("Error: USB 3.0 module should be the first connected module or come right after Passthrough Mini-PCIe module!\n");
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- } else {
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+ else
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++usb;
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- }
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break;
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case MOX_MODULE_PASSPCI:
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- if (passpci) {
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+ if (passpci)
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printf("Error: Only one Passthrough Mini-PCIe module is supported!\n");
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- } else if (i != 0) {
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+ else if (i != 0)
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printf("Error: Passthrough Mini-PCIe module should be the first connected module!\n");
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- } else {
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+ else
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++passpci;
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- }
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}
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}
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@@ -551,3 +551,262 @@ int last_stage_init(void)
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return 0;
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}
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+
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+#if defined(CONFIG_OF_BOARD_SETUP)
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+
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+static int vnode_by_path(void *blob, const char *fmt, va_list ap)
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+{
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+ char path[128];
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+
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+ vsnprintf(path, 128, fmt, ap);
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+ return fdt_path_offset(blob, path);
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+}
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+
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+static int node_by_path(void *blob, const char *fmt, ...)
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+{
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+ va_list ap;
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+ int res;
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+
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+ va_start(ap, fmt);
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+ res = vnode_by_path(blob, fmt, ap);
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+ va_end(ap);
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+
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+ return res;
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+}
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+
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+static int phandle_by_path(void *blob, const char *fmt, ...)
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+{
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+ va_list ap;
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+ int node, phandle, res;
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+
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+ va_start(ap, fmt);
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+ node = vnode_by_path(blob, fmt, ap);
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+ va_end(ap);
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+
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+ if (node < 0)
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+ return node;
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+
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+ phandle = fdt_get_phandle(blob, node);
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+ if (phandle > 0)
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+ return phandle;
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+
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+ phandle = fdt_get_max_phandle(blob);
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+ if (phandle < 0)
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+ return phandle;
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+
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+ phandle += 1;
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+
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+ res = fdt_setprop_u32(blob, node, "linux,phandle", phandle);
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+ if (res < 0)
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+ return res;
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+
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+ res = fdt_setprop_u32(blob, node, "phandle", phandle);
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+ if (res < 0)
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+ return res;
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+
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+ return phandle;
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+}
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+
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+static int enable_by_path(void *blob, const char *fmt, ...)
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+{
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+ va_list ap;
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+ int node;
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+
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+ va_start(ap, fmt);
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+ node = vnode_by_path(blob, fmt, ap);
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+ va_end(ap);
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+
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+ if (node < 0)
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+ return node;
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+
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+ return fdt_setprop_string(blob, node, "status", "okay");
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+}
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+
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+static bool is_topaz(int id)
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+{
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+ return topaz && id == peridot + topaz - 1;
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+}
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+
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+static int switch_addr(int id)
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+{
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+ return is_topaz(id) ? 0x2 : 0x10 + id;
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+}
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+
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+static int setup_switch(void *blob, int id)
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+{
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+ int res, addr, i, node, phandle;
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+
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+ addr = switch_addr(id);
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+
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+ /* first enable the switch by setting status = "okay" */
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+ res = enable_by_path(blob, MDIO_PATH "/switch%i@%x", id, addr);
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+ if (res < 0)
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+ return res;
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+
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+ /*
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+ * now if there are more switches or a SFP module coming after,
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+ * enable corresponding ports
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+ */
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+ if (id < peridot + topaz - 1) {
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+ res = enable_by_path(blob,
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+ MDIO_PATH "/switch%i@%x/ports/port@a",
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+ id, addr);
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+ } else if (id == peridot - 1 && !topaz && sfp) {
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+ res = enable_by_path(blob,
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+ MDIO_PATH "/switch%i@%x/ports/port-sfp@a",
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+ id, addr);
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+ } else {
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+ res = 0;
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+ }
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+ if (res < 0)
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+ return res;
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+
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+ if (id >= peridot + topaz - 1)
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+ return 0;
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+
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+ /* finally change link property if needed */
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+ node = node_by_path(blob, MDIO_PATH "/switch%i@%x/ports/port@a", id,
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+ addr);
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+ if (node < 0)
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+ return node;
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+
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+ for (i = id + 1; i < peridot + topaz; ++i) {
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+ phandle = phandle_by_path(blob,
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+ MDIO_PATH "/switch%i@%x/ports/port@%x",
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+ i, switch_addr(i),
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+ is_topaz(i) ? 5 : 9);
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+ if (phandle < 0)
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+ return phandle;
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+
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+ if (i == id + 1)
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+ res = fdt_setprop_u32(blob, node, "link", phandle);
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+ else
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+ res = fdt_appendprop_u32(blob, node, "link", phandle);
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+ if (res < 0)
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+ return res;
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+ }
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+
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+ return 0;
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+}
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+
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+static int remove_disabled_nodes(void *blob)
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+{
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+ while (1) {
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+ int res, offset;
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+
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+ offset = fdt_node_offset_by_prop_value(blob, -1, "status",
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+ "disabled", 9);
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+ if (offset < 0)
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+ break;
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+
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+ res = fdt_del_node(blob, offset);
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+ if (res < 0)
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+ return res;
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+ }
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+
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+ return 0;
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+}
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+
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+int ft_board_setup(void *blob, bd_t *bd)
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+{
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+ int node, phandle, res;
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+
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+ /*
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+ * If MOX B (PCI), MOX F (USB) or MOX G (Passthrough PCI) modules are
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+ * connected, enable the PCIe node.
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+ */
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+ if (pci || usb || passpci) {
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+ node = fdt_path_offset(blob, PCIE_PATH);
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+ if (node < 0)
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+ return node;
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+
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+ res = fdt_setprop_string(blob, node, "status", "okay");
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+ if (res < 0)
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+ return res;
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+ }
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+
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+ /*
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+ * If MOX C (Topaz switch) and/or MOX E (Peridot switch) are connected,
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+ * enable the eth1 node and setup the switches.
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+ */
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+ if (peridot || topaz) {
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+ int i;
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+
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+ res = enable_by_path(blob, ETH1_PATH);
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+ if (res < 0)
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+ return res;
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+
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+ for (i = 0; i < peridot + topaz; ++i) {
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+ res = setup_switch(blob, i);
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+ if (res < 0)
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+ return res;
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+ }
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+ }
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+
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+ /*
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+ * If MOX D (SFP cage module) is connected, enable the SFP node and eth1
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+ * node. If there is no Peridot switch between MOX A and MOX D, add link
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+ * to the SFP node to eth1 node.
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+ * Also enable and configure SFP GPIO controller node.
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+ */
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+ if (sfp) {
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+ res = enable_by_path(blob, SFP_PATH);
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+ if (res < 0)
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+ return res;
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+
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+ res = enable_by_path(blob, ETH1_PATH);
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+ if (res < 0)
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+ return res;
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+
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+ if (!peridot) {
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+ phandle = phandle_by_path(blob, SFP_PATH);
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+ if (phandle < 0)
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+ return res;
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+
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+ node = node_by_path(blob, ETH1_PATH);
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+ if (node < 0)
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+ return node;
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+
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+ res = fdt_setprop_u32(blob, node, "sfp", phandle);
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+ if (res < 0)
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+ return res;
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+
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+ res = fdt_setprop_string(blob, node, "phy-mode",
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+ "sgmii");
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+ if (res < 0)
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+ return res;
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+ }
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+
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+ res = enable_by_path(blob, SFP_GPIO_PATH);
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+ if (res < 0)
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+ return res;
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+
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+ if (sfp_pos) {
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+ char newname[16];
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+
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+ /* moxtet-sfp is on non-zero position, change default */
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+ node = node_by_path(blob, SFP_GPIO_PATH);
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+ if (node < 0)
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+ return node;
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+
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+ res = fdt_setprop_u32(blob, node, "reg", sfp_pos);
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+ if (res < 0)
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+ return res;
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+
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+ sprintf(newname, "gpio@%x", sfp_pos);
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+
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+ res = fdt_set_name(blob, node, newname);
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+ if (res < 0)
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+ return res;
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+ }
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+ }
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+
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+ fdt_fixup_ethernet(blob);
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+
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+ /* Finally remove disabled nodes, as per Rob Herring's request. */
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+ remove_disabled_nodes(blob);
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+
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+ return 0;
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+}
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+
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+#endif
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