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Signed-off-by: Serhii Iliushyk --- .../core/nt400dxx/reset/nthw_fpga_rst9569.c | 90 ++++++++++++++++++- 1 file changed, 88 insertions(+), 2 deletions(-) diff --git a/drivers/net/ntnic/nthw/core/nt400dxx/reset/nthw_fpga_rst9569.c b/drivers/net/ntnic/nthw/core/nt400dxx/reset/nthw_fpga_rst9569.c index 5ddf0a093e..29e32ffb22 100644 --- a/drivers/net/ntnic/nthw/core/nt400dxx/reset/nthw_fpga_rst9569.c +++ b/drivers/net/ntnic/nthw/core/nt400dxx/reset/nthw_fpga_rst9569.c @@ -100,6 +100,11 @@ static bool nthw_fpga_rst9569_get_phy_ftile_rst_done_stat(struct nthw_fpga_rst_n return nthw_field_get_updated(p->p_fld_stat_phy_ftile_rst_done) != 0; } +static bool nthw_fpga_rst9569_get_phy_ftile_rdy_stat(struct nthw_fpga_rst_nt400dxx *const p) +{ + return nthw_field_get_updated(p->p_fld_stat_phy_ftile_rdy) != 0; +} + static bool nthw_fpga_rst9569_get_ddr4_calib_complete_latch(struct nthw_fpga_rst_nt400dxx *const p) { return nthw_field_get_updated(p->p_fld_latch_ddr4_calib_complete) != 0; @@ -155,6 +160,40 @@ static int nthw_fpga_rst9569_wait_ddr4_calibration_complete(struct fpga_info_s * return 0; } +static int nthw_fpga_rst9569_wait_phy_ftile_rdy(struct fpga_info_s *p_fpga_info, + struct nthw_fpga_rst_nt400dxx *p_rst) +{ + const char *const p_adapter_id_str = p_fpga_info->mp_adapter_id_str; + uint32_t complete; + uint32_t timeout; + + /* 5: wait until PHY_FTILE reset done */ + NT_LOG(DBG, NTHW, "%s: %s: PHY FTILE ready", p_adapter_id_str, __func__); + timeout = 50000;/* initial timeout must be set to 5 sec. */ + + do { + complete = nthw_fpga_rst9569_get_phy_ftile_rdy_stat(p_rst); + + if (!complete) { + nthw_os_wait_usec(100); + + } else { + NT_LOG(DBG, NTHW, "%s: PHY FTILE ready, margin to timeout %u", + p_adapter_id_str, timeout); + } + + timeout--; + + if (timeout == 0) { + NT_LOG_DBGX(ERR, NTHW, "%s: Timeout waiting for PHY FTILE ready", + p_adapter_id_str); + return -1; + } + } while (!complete); + + return 0; +} + static int nthw_fpga_rst9569_wait_phy_ftile_rst_done(struct fpga_info_s *p_fpga_info, struct nthw_fpga_rst_nt400dxx *p_rst) { @@ -232,7 +271,8 @@ static int nthw_fpga_rst9569_product_reset(struct fpga_info_s *p_fpga_info, p_adapter_id_str, __func__); } - bool success = true; + int tries = 0; + bool success = false; do { /* Only wait for ftile rst done if ftile is indeed in reset. */ @@ -256,8 +296,54 @@ static int nthw_fpga_rst9569_product_reset(struct fpga_info_s *p_fpga_info, nthw_os_wait_usec(10000); - } while (!success); + /* (7) Wait until PHY_FTILE ready */ + if (nthw_fpga_rst9569_wait_phy_ftile_rdy(p_fpga_info, p_rst) == -1) { + if (++tries >= 5) { + /* Give up */ + NT_LOG_DBGX(ERR, NTHW, "%s: PHY_TILE not ready after %u attempts", + p_adapter_id_str, tries); + return res; + } + /* Try to recover with as little effort as possible */ + nthw_phy_tile_t *p_phy_tile = p_fpga_info->mp_nthw_agx.p_phy_tile; + + for (uint8_t i = 0; i < nthw_phy_tile_get_no_intfs(p_phy_tile); i++) { + /* Also consider TX_PLL_LOCKED == 0 */ + if (!nthw_phy_tile_get_port_status_tx_lanes_stable(p_phy_tile, + i)) { + success = false; + NT_LOG_DBGX(WRN, NTHW, + "%s: PHY_TILE Intf %u TX_LANES_STABLE == FALSE", + p_adapter_id_str, i); + + /* Active low */ + nthw_phy_tile_set_port_config_rst(p_phy_tile, i, 0); + int32_t count = 1000; + + do { + nthw_os_wait_usec(1000); + } while + (!nthw_phy_tile_get_port_status_reset_ack(p_phy_tile, i) && + (--count > 0)); + + if (count <= 0) { + NT_LOG(ERR, NTHW, + "%s: IntfNo %u: Time-out waiting for PortStatusResetAck", + p_adapter_id_str, i); + } + + /* Active low */ + nthw_phy_tile_set_port_config_rst(p_phy_tile, i, 1); + nthw_os_wait_usec(20000); + } + } + + } else { + NT_LOG_DBGX(DBG, NTHW, "%s: PHY_TILE ready", p_adapter_id_str); + success = true; + } + } while (!success); return 0; } -- 2.45.0