diff options
Diffstat (limited to 'platforms')
| -rw-r--r-- | platforms/astbmc/witherspoon.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/platforms/astbmc/witherspoon.c b/platforms/astbmc/witherspoon.c index 4604986..6a77306 100644 --- a/platforms/astbmc/witherspoon.c +++ b/platforms/astbmc/witherspoon.c @@ -30,6 +30,273 @@ #include "astbmc.h" +static const struct slot_table_entry witherspoon_gpu0[] = { + { + .etype = st_pluggable_slot, + .location = ST_LOC_DEVFN(0x80,0), + .name = "GPU0", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_gpu1[] = { + { + .etype = st_pluggable_slot, + .location = ST_LOC_DEVFN(0xa0,0), + .name = "GPU1", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_gpu2[] = { + { + .etype = st_pluggable_slot, + .location = ST_LOC_DEVFN(0xc0,0), + .name = "GPU2", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_gpu3[] = { + { + .etype = st_pluggable_slot, + .location = ST_LOC_DEVFN(0x60,0), + .name = "GPU3", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_gpu4[] = { + { + .etype = st_pluggable_slot, + .location = ST_LOC_DEVFN(0x80,0), + .name = "GPU4", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_gpu5[] = { + { + .etype = st_pluggable_slot, + .location = ST_LOC_DEVFN(0xa0,0), + .name = "GPU5", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_plx0_down[] = { + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x4a,0), + .children = witherspoon_gpu0, + .name = "GPU0 down", + }, + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x4b,0), + .children = witherspoon_gpu1, + .name = "GPU1 down", + }, + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x4c,0), + .children = witherspoon_gpu2, + .name = "GPU2 down", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_plx1_down[] = { + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x44,0), + .children = witherspoon_gpu3, + .name = "GPU3 down", + }, + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x45,0), + .children = witherspoon_gpu4, + .name = "GPU4 down", + }, + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x4d,0), + .children = witherspoon_gpu5, + .name = "GPU5 down", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_plx0_up[] = { + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x20,0), + .children = witherspoon_plx0_down, + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_plx1_up[] = { + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0x20,0), + .children = witherspoon_plx1_down, + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_phb0_4_slot[] = { + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0,0), + .children = witherspoon_plx0_up, + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_phb8_5_slot[] = { + { + .etype = st_builtin_dev, + .location = ST_LOC_DEVFN(0,0), + .children = witherspoon_plx1_up, + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_npu0_slots[] = { + { + .etype = st_npu_slot, + .location = ST_LOC_NPU_GROUP(0), + .name = "GPU0", + }, + { + .etype = st_npu_slot, + .location = ST_LOC_NPU_GROUP(1), + .name = "GPU1", + }, + { + .etype = st_npu_slot, + .location = ST_LOC_NPU_GROUP(2), + .name = "GPU2", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_npu8_slots[] = { + { + .etype = st_npu_slot, + .location = ST_LOC_NPU_GROUP(0), + .name = "GPU3", + }, + { + .etype = st_npu_slot, + .location = ST_LOC_NPU_GROUP(1), + .name = "GPU4", + }, + { + .etype = st_npu_slot, + .location = ST_LOC_NPU_GROUP(2), + .name = "GPU5", + }, + { .etype = st_end }, +}; + +static const struct slot_table_entry witherspoon_phb_table[] = { + { + .etype = st_phb, + .location = ST_LOC_PHB(0,4), + .children = witherspoon_phb0_4_slot, + }, + { + .etype = st_phb, + .location = ST_LOC_PHB(0,7), + .children = witherspoon_npu0_slots, + }, + { + .etype = st_phb, + .location = ST_LOC_PHB(8,5), + .children = witherspoon_phb8_5_slot, + }, + { + .etype = st_phb, + .location = ST_LOC_PHB(8,8), + .children = witherspoon_npu8_slots, + }, + { .etype = st_end }, +}; + +#define NPU_BASE 0x5011000 +#define NPU_SIZE 0x2c +#define NPU_INDIRECT0 0x8000000009010c3f +#define NPU_INDIRECT1 0x800000000c010c3f + +static void create_link(struct dt_node *npu, int group, int index) +{ + struct dt_node *link; + uint32_t lane_mask; + uint64_t phy; + char namebuf[32]; + + snprintf(namebuf, sizeof(namebuf), "link@%x", index); + link = dt_new(npu, namebuf); + + dt_add_property_string(link, "compatible", "ibm,npu-link"); + dt_add_property_cells(link, "ibm,npu-link-index", index); + + if (!(index / 3)) + phy = NPU_INDIRECT0; + else + phy = NPU_INDIRECT1; + + switch (index % 3) { + case 0: + lane_mask = 0xf1e000; + break; + + case 1: + lane_mask = 0x0e1870; + break; + + case 2: + lane_mask = 0x00078f; + break; + + default: + assert(0); + } + + dt_add_property_u64s(link, "ibm,npu-phy", phy); + dt_add_property_cells(link, "ibm,npu-lane-mask", lane_mask); + dt_add_property_cells(link, "ibm,npu-group-id", group); +} + +static void dt_create_npu2(void) +{ + struct dt_node *xscom, *npu; + char namebuf[32]; + int phb_index = 7; + int npu_index = 0; + + dt_for_each_compatible(dt_root, xscom, "ibm,xscom") { + snprintf(namebuf, sizeof(namebuf), "npu@%x", NPU_BASE); + npu = dt_new(xscom, namebuf); + dt_add_property_cells(npu, "reg", NPU_BASE, NPU_SIZE); + dt_add_property_strings(npu, "compatible", "ibm,power9-npu"); + + dt_add_property_cells(npu, "ibm,phb-index", phb_index++); + dt_add_property_cells(npu, "ibm,npu-index", npu_index++); + dt_add_property_cells(npu, "ibm,npu-links", 6); + + create_link(npu, 0, 0); + create_link(npu, 0, 1); + create_link(npu, 1, 2); + create_link(npu, 1, 3); + create_link(npu, 2, 4); + create_link(npu, 2, 5); + } +} + #define PHB4_SHARED_SLOT_IDX_WITHERSPOON 3 static bool witherspoon_probe(void) @@ -43,6 +310,11 @@ static bool witherspoon_probe(void) /* Setup UART for use by OPAL (Linux hvc) */ uart_set_console_policy(UART_CONSOLE_OPAL); + /* Add NPU2 bindings */ + dt_create_npu2(); + + slot_table_init(witherspoon_phb_table); + return true; } |