diff options
| -rw-r--r-- | board/CZ.NIC/turris_mox/turris_mox.c | 295 | ||||
| -rw-r--r-- | configs/turris_mox_defconfig | 1 |
2 files changed, 278 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 diff --git a/configs/turris_mox_defconfig b/configs/turris_mox_defconfig index 2e637044c1..3bc69cda4d 100644 --- a/configs/turris_mox_defconfig +++ b/configs/turris_mox_defconfig @@ -37,6 +37,7 @@ CONFIG_CMD_BTRFS=y CONFIG_CMD_EXT4_WRITE=y CONFIG_MAC_PARTITION=y CONFIG_OF_BOARD_FIXUP=y +CONFIG_OF_BOARD_SETUP=y CONFIG_DEFAULT_DEVICE_TREE="armada-3720-turris-mox" CONFIG_ENV_IS_IN_SPI_FLASH=y CONFIG_SYS_RELOC_GD_ENV_ADDR=y |