diff --git a/drivers/staging/rdma/hfi1/chip.h b/drivers/staging/rdma/hfi1/chip.h index f89a432c7334..497c5de23d53 100644 --- a/drivers/staging/rdma/hfi1/chip.h +++ b/drivers/staging/rdma/hfi1/chip.h @@ -609,6 +609,7 @@ static inline void write_uctxt_csr(struct hfi1_devdata *dd, int ctxt, u64 create_pbc(struct hfi1_pportdata *ppd, u64, int, u32, u32); /* firmware.c */ +#define SBUS_MASTER_BROADCAST 0xfd #define NUM_PCIE_SERDES 16 /* number of PCIe serdes on the SBus */ extern const u8 pcie_serdes_broadcast[]; extern const u8 pcie_pcs_addrs[2][NUM_PCIE_SERDES]; diff --git a/drivers/staging/rdma/hfi1/firmware.c b/drivers/staging/rdma/hfi1/firmware.c index 15c9cb7a3150..ace75ce3da3f 100644 --- a/drivers/staging/rdma/hfi1/firmware.c +++ b/drivers/staging/rdma/hfi1/firmware.c @@ -924,9 +924,6 @@ static int load_8051_firmware(struct hfi1_devdata *dd, return 0; } -/* SBus Master broadcast address */ -#define SBUS_MASTER_BROADCAST 0xfd - /* * Write the SBus request register * @@ -1255,6 +1252,7 @@ int load_firmware(struct hfi1_devdata *dd) ret = load_sbus_firmware(dd, &fw_sbus); if (ret) goto clear; + fw_sbus_load = 0; } if (fw_fabric_serdes_load) { diff --git a/drivers/staging/rdma/hfi1/pcie.c b/drivers/staging/rdma/hfi1/pcie.c index ac5653c0f65e..3b50cdda1c0a 100644 --- a/drivers/staging/rdma/hfi1/pcie.c +++ b/drivers/staging/rdma/hfi1/pcie.c @@ -946,9 +946,20 @@ int do_pcie_gen3_transition(struct hfi1_devdata *dd) __func__); } +retry: + if (therm) { + /* toggle SPICO_ENABLE to get back to the state + just after the firmware load */ + sbus_request(dd, SBUS_MASTER_BROADCAST, 0x01, + WRITE_SBUS_RECEIVER, 0x00000040); + sbus_request(dd, SBUS_MASTER_BROADCAST, 0x01, + WRITE_SBUS_RECEIVER, 0x00000140); + dd_dev_info(dd, "%s: toggle SPICO_ENABLE to reset the bus\n", + __func__); + } + /* step 3: download SBus Master firmware */ /* step 4: download PCIe Gen3 SerDes firmware */ -retry: dd_dev_info(dd, "%s: downloading firmware\n", __func__); ret = load_pcie_firmware(dd); if (ret)