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-rw-r--r--board/CZ.NIC/turris_mox/turris_mox.c295
1 files changed, 277 insertions, 18 deletions
diff --git a/board/CZ.NIC/turris_mox/turris_mox.c b/board/CZ.NIC/turris_mox/turris_mox.c
index 0b13d1d190..6e937826d0 100644
--- a/board/CZ.NIC/turris_mox/turris_mox.c
+++ b/board/CZ.NIC/turris_mox/turris_mox.c
@@ -34,7 +34,11 @@
#define ARMADA_37XX_SPI_DOUT 0xd0010608
#define ARMADA_37XX_SPI_DIN 0xd001060c
+#define ETH1_PATH "/soc/internal-regs@d0000000/ethernet@40000"
+#define MDIO_PATH "/soc/internal-regs@d0000000/mdio@32004"
+#define SFP_GPIO_PATH "/soc/internal-regs@d0000000/spi@10600/moxtet@1/gpio@0"
#define PCIE_PATH "/soc/pcie@d0070000"
+#define SFP_PATH "/sfp"
DECLARE_GLOBAL_DATA_PTR;
@@ -459,24 +463,22 @@ int last_stage_init(void)
}
break;
case MOX_MODULE_PCI:
- if (pci) {
+ if (pci)
printf("Error: Only one Mini-PCIe module is supported!\n");
- } else if (usb) {
+ else if (usb)
printf("Error: Mini-PCIe module cannot come after USB 3.0 module!\n");
- } else if (i && (i != 1 || !passpci)) {
+ else if (i && (i != 1 || !passpci))
printf("Error: Mini-PCIe module should be the first connected module or come right after Passthrough Mini-PCIe module!\n");
- } else {
+ else
++pci;
- }
break;
case MOX_MODULE_TOPAZ:
- if (topaz) {
+ if (topaz)
printf("Error: Only one Topaz module is supported!\n");
- } else if (peridot >= 3) {
+ else if (peridot >= 3)
printf("Error: At most two Peridot modules can come before Topaz module!\n");
- } else {
+ else
++topaz;
- }
break;
case MOX_MODULE_PERIDOT:
if (sfp || topaz) {
@@ -489,24 +491,22 @@ int last_stage_init(void)
}
break;
case MOX_MODULE_USB3:
- if (pci) {
+ if (pci)
printf("Error: USB 3.0 module cannot come after Mini-PCIe module!\n");
- } else if (usb) {
+ else if (usb)
printf("Error: Only one USB 3.0 module is supported!\n");
- } else if (i && (i != 1 || !passpci)) {
+ else if (i && (i != 1 || !passpci))
printf("Error: USB 3.0 module should be the first connected module or come right after Passthrough Mini-PCIe module!\n");
- } else {
+ else
++usb;
- }
break;
case MOX_MODULE_PASSPCI:
- if (passpci) {
+ if (passpci)
printf("Error: Only one Passthrough Mini-PCIe module is supported!\n");
- } else if (i != 0) {
+ else if (i != 0)
printf("Error: Passthrough Mini-PCIe module should be the first connected module!\n");
- } else {
+ else
++passpci;
- }
}
}
@@ -551,3 +551,262 @@ int last_stage_init(void)
return 0;
}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+
+static int vnode_by_path(void *blob, const char *fmt, va_list ap)
+{
+ char path[128];
+
+ vsnprintf(path, 128, fmt, ap);
+ return fdt_path_offset(blob, path);
+}
+
+static int node_by_path(void *blob, const char *fmt, ...)
+{
+ va_list ap;
+ int res;
+
+ va_start(ap, fmt);
+ res = vnode_by_path(blob, fmt, ap);
+ va_end(ap);
+
+ return res;
+}
+
+static int phandle_by_path(void *blob, const char *fmt, ...)
+{
+ va_list ap;
+ int node, phandle, res;
+
+ va_start(ap, fmt);
+ node = vnode_by_path(blob, fmt, ap);
+ va_end(ap);
+
+ if (node < 0)
+ return node;
+
+ phandle = fdt_get_phandle(blob, node);
+ if (phandle > 0)
+ return phandle;
+
+ phandle = fdt_get_max_phandle(blob);
+ if (phandle < 0)
+ return phandle;
+
+ phandle += 1;
+
+ res = fdt_setprop_u32(blob, node, "linux,phandle", phandle);
+ if (res < 0)
+ return res;
+
+ res = fdt_setprop_u32(blob, node, "phandle", phandle);
+ if (res < 0)
+ return res;
+
+ return phandle;
+}
+
+static int enable_by_path(void *blob, const char *fmt, ...)
+{
+ va_list ap;
+ int node;
+
+ va_start(ap, fmt);
+ node = vnode_by_path(blob, fmt, ap);
+ va_end(ap);
+
+ if (node < 0)
+ return node;
+
+ return fdt_setprop_string(blob, node, "status", "okay");
+}
+
+static bool is_topaz(int id)
+{
+ return topaz && id == peridot + topaz - 1;
+}
+
+static int switch_addr(int id)
+{
+ return is_topaz(id) ? 0x2 : 0x10 + id;
+}
+
+static int setup_switch(void *blob, int id)
+{
+ int res, addr, i, node, phandle;
+
+ addr = switch_addr(id);
+
+ /* first enable the switch by setting status = "okay" */
+ res = enable_by_path(blob, MDIO_PATH "/switch%i@%x", id, addr);
+ if (res < 0)
+ return res;
+
+ /*
+ * now if there are more switches or a SFP module coming after,
+ * enable corresponding ports
+ */
+ if (id < peridot + topaz - 1) {
+ res = enable_by_path(blob,
+ MDIO_PATH "/switch%i@%x/ports/port@a",
+ id, addr);
+ } else if (id == peridot - 1 && !topaz && sfp) {
+ res = enable_by_path(blob,
+ MDIO_PATH "/switch%i@%x/ports/port-sfp@a",
+ id, addr);
+ } else {
+ res = 0;
+ }
+ if (res < 0)
+ return res;
+
+ if (id >= peridot + topaz - 1)
+ return 0;
+
+ /* finally change link property if needed */
+ node = node_by_path(blob, MDIO_PATH "/switch%i@%x/ports/port@a", id,
+ addr);
+ if (node < 0)
+ return node;
+
+ for (i = id + 1; i < peridot + topaz; ++i) {
+ phandle = phandle_by_path(blob,
+ MDIO_PATH "/switch%i@%x/ports/port@%x",
+ i, switch_addr(i),
+ is_topaz(i) ? 5 : 9);
+ if (phandle < 0)
+ return phandle;
+
+ if (i == id + 1)
+ res = fdt_setprop_u32(blob, node, "link", phandle);
+ else
+ res = fdt_appendprop_u32(blob, node, "link", phandle);
+ if (res < 0)
+ return res;
+ }
+
+ return 0;
+}
+
+static int remove_disabled_nodes(void *blob)
+{
+ while (1) {
+ int res, offset;
+
+ offset = fdt_node_offset_by_prop_value(blob, -1, "status",
+ "disabled", 9);
+ if (offset < 0)
+ break;
+
+ res = fdt_del_node(blob, offset);
+ if (res < 0)
+ return res;
+ }
+
+ return 0;
+}
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+ int node, phandle, res;
+
+ /*
+ * If MOX B (PCI), MOX F (USB) or MOX G (Passthrough PCI) modules are
+ * connected, enable the PCIe node.
+ */
+ if (pci || usb || passpci) {
+ node = fdt_path_offset(blob, PCIE_PATH);
+ if (node < 0)
+ return node;
+
+ res = fdt_setprop_string(blob, node, "status", "okay");
+ if (res < 0)
+ return res;
+ }
+
+ /*
+ * If MOX C (Topaz switch) and/or MOX E (Peridot switch) are connected,
+ * enable the eth1 node and setup the switches.
+ */
+ if (peridot || topaz) {
+ int i;
+
+ res = enable_by_path(blob, ETH1_PATH);
+ if (res < 0)
+ return res;
+
+ for (i = 0; i < peridot + topaz; ++i) {
+ res = setup_switch(blob, i);
+ if (res < 0)
+ return res;
+ }
+ }
+
+ /*
+ * If MOX D (SFP cage module) is connected, enable the SFP node and eth1
+ * node. If there is no Peridot switch between MOX A and MOX D, add link
+ * to the SFP node to eth1 node.
+ * Also enable and configure SFP GPIO controller node.
+ */
+ if (sfp) {
+ res = enable_by_path(blob, SFP_PATH);
+ if (res < 0)
+ return res;
+
+ res = enable_by_path(blob, ETH1_PATH);
+ if (res < 0)
+ return res;
+
+ if (!peridot) {
+ phandle = phandle_by_path(blob, SFP_PATH);
+ if (phandle < 0)
+ return res;
+
+ node = node_by_path(blob, ETH1_PATH);
+ if (node < 0)
+ return node;
+
+ res = fdt_setprop_u32(blob, node, "sfp", phandle);
+ if (res < 0)
+ return res;
+
+ res = fdt_setprop_string(blob, node, "phy-mode",
+ "sgmii");
+ if (res < 0)
+ return res;
+ }
+
+ res = enable_by_path(blob, SFP_GPIO_PATH);
+ if (res < 0)
+ return res;
+
+ if (sfp_pos) {
+ char newname[16];
+
+ /* moxtet-sfp is on non-zero position, change default */
+ node = node_by_path(blob, SFP_GPIO_PATH);
+ if (node < 0)
+ return node;
+
+ res = fdt_setprop_u32(blob, node, "reg", sfp_pos);
+ if (res < 0)
+ return res;
+
+ sprintf(newname, "gpio@%x", sfp_pos);
+
+ res = fdt_set_name(blob, node, newname);
+ if (res < 0)
+ return res;
+ }
+ }
+
+ fdt_fixup_ethernet(blob);
+
+ /* Finally remove disabled nodes, as per Rob Herring's request. */
+ remove_disabled_nodes(blob);
+
+ return 0;
+}
+
+#endif
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