diff options
Diffstat (limited to 'drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c')
| -rw-r--r-- | drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c | 187 |
1 files changed, 179 insertions, 8 deletions
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c index 56fb048c4ddc..967f0fd07fcf 100644 --- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c +++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c @@ -31,32 +31,45 @@ #define HW_ATL_MPI_SPEED_MSK 0xFFFF0000U #define HW_ATL_MPI_SPEED_SHIFT 16U +#define HW_ATL_MPI_DAISY_CHAIN_STATUS 0x704 +#define HW_ATL_MPI_BOOT_EXIT_CODE 0x388 + +#define HW_ATL_MAC_PHY_CONTROL 0x4000 +#define HW_ATL_MAC_PHY_MPI_RESET_BIT 0x1D + #define HW_ATL_FW_VER_1X 0x01050006U #define HW_ATL_FW_VER_2X 0x02000000U #define HW_ATL_FW_VER_3X 0x03000000U +#define FORCE_FLASHLESS 0 + static int hw_atl_utils_ver_match(u32 ver_expected, u32 ver_actual); int hw_atl_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops) { int err = 0; + err = hw_atl_utils_soft_reset(self); + if (err) + return err; + hw_atl_utils_hw_chip_features_init(self, &self->chip_features); hw_atl_utils_get_fw_version(self, &self->fw_ver_actual); - if (hw_atl_utils_ver_match(HW_ATL_FW_VER_1X, self->fw_ver_actual) == 0) + if (hw_atl_utils_ver_match(HW_ATL_FW_VER_1X, + self->fw_ver_actual) == 0) { *fw_ops = &aq_fw_1x_ops; - else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_2X, - self->fw_ver_actual) == 0) + } else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_2X, + self->fw_ver_actual) == 0) { *fw_ops = &aq_fw_2x_ops; - else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_3X, - self->fw_ver_actual) == 0) + } else if (hw_atl_utils_ver_match(HW_ATL_FW_VER_3X, + self->fw_ver_actual) == 0) { *fw_ops = &aq_fw_2x_ops; - else { + } else { aq_pr_err("Bad FW version detected: %x\n", - self->fw_ver_actual); + self->fw_ver_actual); return -EOPNOTSUPP; } self->aq_fw_ops = *fw_ops; @@ -64,6 +77,164 @@ int hw_atl_utils_initfw(struct aq_hw_s *self, const struct aq_fw_ops **fw_ops) return err; } +static int hw_atl_utils_soft_reset_flb(struct aq_hw_s *self) +{ + int k = 0; + u32 gsr; + + aq_hw_write_reg(self, 0x404, 0x40e1); + AQ_HW_SLEEP(50); + + /* Cleanup SPI */ + aq_hw_write_reg(self, 0x534, 0xA0); + aq_hw_write_reg(self, 0x100, 0x9F); + aq_hw_write_reg(self, 0x100, 0x809F); + + gsr = aq_hw_read_reg(self, HW_ATL_GLB_SOFT_RES_ADR); + aq_hw_write_reg(self, HW_ATL_GLB_SOFT_RES_ADR, (gsr & 0xBFFF) | 0x8000); + + /* Kickstart MAC */ + aq_hw_write_reg(self, 0x404, 0x80e0); + aq_hw_write_reg(self, 0x32a8, 0x0); + aq_hw_write_reg(self, 0x520, 0x1); + AQ_HW_SLEEP(10); + aq_hw_write_reg(self, 0x404, 0x180e0); + + for (k = 0; k < 1000; k++) { + u32 flb_status = aq_hw_read_reg(self, + HW_ATL_MPI_DAISY_CHAIN_STATUS); + + flb_status = flb_status & 0x10; + if (flb_status) + break; + AQ_HW_SLEEP(10); + } + if (k == 1000) { + aq_pr_err("MAC kickstart failed\n"); + return -EIO; + } + + /* FW reset */ + aq_hw_write_reg(self, 0x404, 0x80e0); + AQ_HW_SLEEP(50); + aq_hw_write_reg(self, 0x3a0, 0x1); + + /* Kickstart PHY - skipped */ + + /* Global software reset*/ + hw_atl_rx_rx_reg_res_dis_set(self, 0U); + hw_atl_tx_tx_reg_res_dis_set(self, 0U); + aq_hw_write_reg_bit(self, HW_ATL_MAC_PHY_CONTROL, + BIT(HW_ATL_MAC_PHY_MPI_RESET_BIT), + HW_ATL_MAC_PHY_MPI_RESET_BIT, 0x0); + gsr = aq_hw_read_reg(self, HW_ATL_GLB_SOFT_RES_ADR); + aq_hw_write_reg(self, HW_ATL_GLB_SOFT_RES_ADR, (gsr & 0xBFFF) | 0x8000); + + for (k = 0; k < 1000; k++) { + u32 fw_state = aq_hw_read_reg(self, HW_ATL_MPI_FW_VERSION); + + if (fw_state) + break; + AQ_HW_SLEEP(10); + } + if (k == 1000) { + aq_pr_err("FW kickstart failed\n"); + return -EIO; + } + + return 0; +} + +static int hw_atl_utils_soft_reset_rbl(struct aq_hw_s *self) +{ + u32 gsr, rbl_status; + int k; + + aq_hw_write_reg(self, 0x404, 0x40e1); + aq_hw_write_reg(self, 0x3a0, 0x1); + aq_hw_write_reg(self, 0x32a8, 0x0); + + /* Alter RBL status */ + aq_hw_write_reg(self, 0x388, 0xDEAD); + + /* Global software reset*/ + hw_atl_rx_rx_reg_res_dis_set(self, 0U); + hw_atl_tx_tx_reg_res_dis_set(self, 0U); + aq_hw_write_reg_bit(self, HW_ATL_MAC_PHY_CONTROL, + BIT(HW_ATL_MAC_PHY_MPI_RESET_BIT), + HW_ATL_MAC_PHY_MPI_RESET_BIT, 0x0); + gsr = aq_hw_read_reg(self, HW_ATL_GLB_SOFT_RES_ADR); + aq_hw_write_reg(self, HW_ATL_GLB_SOFT_RES_ADR, + (gsr & 0xFFFFBFFF) | 0x8000); + + if (FORCE_FLASHLESS) + aq_hw_write_reg(self, 0x534, 0x0); + + aq_hw_write_reg(self, 0x404, 0x40e0); + + /* Wait for RBL boot */ + for (k = 0; k < 1000; k++) { + rbl_status = aq_hw_read_reg(self, 0x388) & 0xFFFF; + if (rbl_status && rbl_status != 0xDEAD) + break; + AQ_HW_SLEEP(10); + } + if (!rbl_status || rbl_status == 0xDEAD) { + aq_pr_err("RBL Restart failed"); + return -EIO; + } + + /* Restore NVR */ + if (FORCE_FLASHLESS) + aq_hw_write_reg(self, 0x534, 0xA0); + + if (rbl_status == 0xF1A7) { + aq_pr_err("No FW detected. Dynamic FW load not implemented\n"); + return -ENOTSUPP; + } + + for (k = 0; k < 1000; k++) { + u32 fw_state = aq_hw_read_reg(self, HW_ATL_MPI_FW_VERSION); + + if (fw_state) + break; + AQ_HW_SLEEP(10); + } + if (k == 1000) { + aq_pr_err("FW kickstart failed\n"); + return -EIO; + } + + return 0; +} + +int hw_atl_utils_soft_reset(struct aq_hw_s *self) +{ + int k; + u32 boot_exit_code = 0; + + for (k = 0; k < 1000; ++k) { + u32 flb_status = aq_hw_read_reg(self, + HW_ATL_MPI_DAISY_CHAIN_STATUS); + boot_exit_code = aq_hw_read_reg(self, + HW_ATL_MPI_BOOT_EXIT_CODE); + if (flb_status != 0x06000000 || boot_exit_code != 0) + break; + } + + if (k == 1000) { + aq_pr_err("Neither RBL nor FLB firmware started\n"); + return -EOPNOTSUPP; + } + + self->rbl_enabled = (boot_exit_code != 0); + + if (self->rbl_enabled) + return hw_atl_utils_soft_reset_rbl(self); + else + return hw_atl_utils_soft_reset_flb(self); +} + int hw_atl_utils_fw_downld_dwords(struct aq_hw_s *self, u32 a, u32 *p, u32 cnt) { @@ -598,7 +769,7 @@ int hw_atl_utils_hw_get_regs(struct aq_hw_s *self, for (i = 0; i < aq_hw_caps->mac_regs_count; i++) regs_buff[i] = aq_hw_read_reg(self, - hw_atl_utils_hw_mac_regs[i]); + hw_atl_utils_hw_mac_regs[i]); return 0; } |