| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Kalle Valo | 1891 | 95.75% | 5 | 27.78% |
| David-John Willis | 34 | 1.72% | 1 | 5.56% |
| Janne Ylalehto | 15 | 0.76% | 1 | 5.56% |
| Bob Copeland | 13 | 0.66% | 3 | 16.67% |
| Luciano Coelho | 6 | 0.30% | 1 | 5.56% |
| John W. Linville | 4 | 0.20% | 1 | 5.56% |
| Grazvydas Ignotas | 4 | 0.20% | 2 | 11.11% |
| Tejun Heo | 3 | 0.15% | 1 | 5.56% |
| Thomas Gleixner | 2 | 0.10% | 1 | 5.56% |
| David Gnedt | 2 | 0.10% | 1 | 5.56% |
| Roel Kluin | 1 | 0.05% | 1 | 5.56% |
| Total | 1975 | 18 |
// SPDX-License-Identifier: GPL-2.0-only /* * This file is part of wl1251 * * Copyright (C) 2008 Nokia Corporation */ #include <linux/slab.h> #include "reg.h" #include "boot.h" #include "io.h" #include "spi.h" #include "event.h" #include "acx.h" void wl1251_boot_target_enable_interrupts(struct wl1251 *wl) { wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); wl1251_reg_write32(wl, HI_CFG, HI_CFG_DEF_VAL); } int wl1251_boot_soft_reset(struct wl1251 *wl) { unsigned long timeout; u32 boot_data; /* perform soft reset */ wl1251_reg_write32(wl, ACX_REG_SLV_SOFT_RESET, ACX_SLV_SOFT_RESET_BIT); /* SOFT_RESET is self clearing */ timeout = jiffies + usecs_to_jiffies(SOFT_RESET_MAX_TIME); while (1) { boot_data = wl1251_reg_read32(wl, ACX_REG_SLV_SOFT_RESET); wl1251_debug(DEBUG_BOOT, "soft reset bootdata 0x%x", boot_data); if ((boot_data & ACX_SLV_SOFT_RESET_BIT) == 0) break; if (time_after(jiffies, timeout)) { /* 1.2 check pWhalBus->uSelfClearTime if the * timeout was reached */ wl1251_error("soft reset timeout"); return -1; } udelay(SOFT_RESET_STALL_TIME); } /* disable Rx/Tx */ wl1251_reg_write32(wl, ENABLE, 0x0); /* disable auto calibration on start*/ wl1251_reg_write32(wl, SPARE_A2, 0xffff); return 0; } int wl1251_boot_init_seq(struct wl1251 *wl) { u32 scr_pad6, init_data, tmp, elp_cmd, ref_freq; /* * col #1: INTEGER_DIVIDER * col #2: FRACTIONAL_DIVIDER * col #3: ATTN_BB * col #4: ALPHA_BB * col #5: STOP_TIME_BB * col #6: BB_PLL_LOOP_FILTER */ static const u32 LUT[REF_FREQ_NUM][LUT_PARAM_NUM] = { { 83, 87381, 0xB, 5, 0xF00, 3}, /* REF_FREQ_19_2*/ { 61, 141154, 0xB, 5, 0x1450, 2}, /* REF_FREQ_26_0*/ { 41, 174763, 0xC, 6, 0x2D00, 1}, /* REF_FREQ_38_4*/ { 40, 0, 0xC, 6, 0x2EE0, 1}, /* REF_FREQ_40_0*/ { 47, 162280, 0xC, 6, 0x2760, 1} /* REF_FREQ_33_6 */ }; /* read NVS params */ scr_pad6 = wl1251_reg_read32(wl, SCR_PAD6); wl1251_debug(DEBUG_BOOT, "scr_pad6 0x%x", scr_pad6); /* read ELP_CMD */ elp_cmd = wl1251_reg_read32(wl, ELP_CMD); wl1251_debug(DEBUG_BOOT, "elp_cmd 0x%x", elp_cmd); /* set the BB calibration time to be 300 usec (PLL_CAL_TIME) */ ref_freq = scr_pad6 & 0x000000FF; wl1251_debug(DEBUG_BOOT, "ref_freq 0x%x", ref_freq); wl1251_reg_write32(wl, PLL_CAL_TIME, 0x9); /* * PG 1.2: set the clock buffer time to be 210 usec (CLK_BUF_TIME) */ wl1251_reg_write32(wl, CLK_BUF_TIME, 0x6); /* * set the clock detect feature to work in the restart wu procedure * (ELP_CFG_MODE[14]) and Select the clock source type * (ELP_CFG_MODE[13:12]) */ tmp = ((scr_pad6 & 0x0000FF00) << 4) | 0x00004000; wl1251_reg_write32(wl, ELP_CFG_MODE, tmp); /* PG 1.2: enable the BB PLL fix. Enable the PLL_LIMP_CLK_EN_CMD */ elp_cmd |= 0x00000040; wl1251_reg_write32(wl, ELP_CMD, elp_cmd); /* PG 1.2: Set the BB PLL stable time to be 1000usec * (PLL_STABLE_TIME) */ wl1251_reg_write32(wl, CFG_PLL_SYNC_CNT, 0x20); /* PG 1.2: read clock request time */ init_data = wl1251_reg_read32(wl, CLK_REQ_TIME); /* * PG 1.2: set the clock request time to be ref_clk_settling_time - * 1ms = 4ms */ if (init_data > 0x21) tmp = init_data - 0x21; else tmp = 0; wl1251_reg_write32(wl, CLK_REQ_TIME, tmp); /* set BB PLL configurations in RF AFE */ wl1251_reg_write32(wl, 0x003058cc, 0x4B5); /* set RF_AFE_REG_5 */ wl1251_reg_write32(wl, 0x003058d4, 0x50); /* set RF_AFE_CTRL_REG_2 */ wl1251_reg_write32(wl, 0x00305948, 0x11c001); /* * change RF PLL and BB PLL divider for VCO clock and adjust VCO * bais current(RF_AFE_REG_13) */ wl1251_reg_write32(wl, 0x003058f4, 0x1e); /* set BB PLL configurations */ tmp = LUT[ref_freq][LUT_PARAM_INTEGER_DIVIDER] | 0x00017000; wl1251_reg_write32(wl, 0x00305840, tmp); /* set fractional divider according to Appendix C-BB PLL * Calculations */ tmp = LUT[ref_freq][LUT_PARAM_FRACTIONAL_DIVIDER]; wl1251_reg_write32(wl, 0x00305844, tmp); /* set the initial data for the sigma delta */ wl1251_reg_write32(wl, 0x00305848, 0x3039); /* * set the accumulator attenuation value, calibration loop1 * (alpha), calibration loop2 (beta), calibration loop3 (gamma) and * the VCO gain */ tmp = (LUT[ref_freq][LUT_PARAM_ATTN_BB] << 16) | (LUT[ref_freq][LUT_PARAM_ALPHA_BB] << 12) | 0x1; wl1251_reg_write32(wl, 0x00305854, tmp); /* * set the calibration stop time after holdoff time expires and set * settling time HOLD_OFF_TIME_BB */ tmp = LUT[ref_freq][LUT_PARAM_STOP_TIME_BB] | 0x000A0000; wl1251_reg_write32(wl, 0x00305858, tmp); /* * set BB PLL Loop filter capacitor3- BB_C3[2:0] and set BB PLL * constant leakage current to linearize PFD to 0uA - * BB_ILOOPF[7:3] */ tmp = LUT[ref_freq][LUT_PARAM_BB_PLL_LOOP_FILTER] | 0x00000030; wl1251_reg_write32(wl, 0x003058f8, tmp); /* * set regulator output voltage for n divider to * 1.35-BB_REFDIV[1:0], set charge pump current- BB_CPGAIN[4:2], * set BB PLL Loop filter capacitor2- BB_C2[7:5], set gain of BB * PLL auto-call to normal mode- BB_CALGAIN_3DB[8] */ wl1251_reg_write32(wl, 0x003058f0, 0x29); /* enable restart wakeup sequence (ELP_CMD[0]) */ wl1251_reg_write32(wl, ELP_CMD, elp_cmd | 0x1); /* restart sequence completed */ udelay(2000); return 0; } static void wl1251_boot_set_ecpu_ctrl(struct wl1251 *wl, u32 flag) { u32 cpu_ctrl; /* 10.5.0 run the firmware (I) */ cpu_ctrl = wl1251_reg_read32(wl, ACX_REG_ECPU_CONTROL); /* 10.5.1 run the firmware (II) */ cpu_ctrl &= ~flag; wl1251_reg_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl); } int wl1251_boot_run_firmware(struct wl1251 *wl) { int loop, ret; u32 chip_id, acx_intr; wl1251_boot_set_ecpu_ctrl(wl, ECPU_CONTROL_HALT); chip_id = wl1251_reg_read32(wl, CHIP_ID_B); wl1251_debug(DEBUG_BOOT, "chip id after firmware boot: 0x%x", chip_id); if (chip_id != wl->chip_id) { wl1251_error("chip id doesn't match after firmware boot"); return -EIO; } /* wait for init to complete */ loop = 0; while (loop++ < INIT_LOOP) { udelay(INIT_LOOP_DELAY); acx_intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); if (acx_intr == 0xffffffff) { wl1251_error("error reading hardware complete " "init indication"); return -EIO; } /* check that ACX_INTR_INIT_COMPLETE is enabled */ else if (acx_intr & WL1251_ACX_INTR_INIT_COMPLETE) { wl1251_reg_write32(wl, ACX_REG_INTERRUPT_ACK, WL1251_ACX_INTR_INIT_COMPLETE); break; } } if (loop > INIT_LOOP) { wl1251_error("timeout waiting for the hardware to " "complete initialization"); return -EIO; } /* get hardware config command mail box */ wl->cmd_box_addr = wl1251_reg_read32(wl, REG_COMMAND_MAILBOX_PTR); /* get hardware config event mail box */ wl->event_box_addr = wl1251_reg_read32(wl, REG_EVENT_MAILBOX_PTR); /* set the working partition to its "running" mode offset */ wl1251_set_partition(wl, WL1251_PART_WORK_MEM_START, WL1251_PART_WORK_MEM_SIZE, WL1251_PART_WORK_REG_START, WL1251_PART_WORK_REG_SIZE); wl1251_debug(DEBUG_MAILBOX, "cmd_box_addr 0x%x event_box_addr 0x%x", wl->cmd_box_addr, wl->event_box_addr); wl1251_acx_fw_version(wl, wl->fw_ver, sizeof(wl->fw_ver)); /* * in case of full asynchronous mode the firmware event must be * ready to receive event from the command mailbox */ /* enable gpio interrupts */ wl1251_enable_interrupts(wl); /* Enable target's interrupts */ wl->intr_mask = WL1251_ACX_INTR_RX0_DATA | WL1251_ACX_INTR_RX1_DATA | WL1251_ACX_INTR_TX_RESULT | WL1251_ACX_INTR_EVENT_A | WL1251_ACX_INTR_EVENT_B | WL1251_ACX_INTR_INIT_COMPLETE; wl1251_boot_target_enable_interrupts(wl); wl->event_mask = SCAN_COMPLETE_EVENT_ID | BSS_LOSE_EVENT_ID | SYNCHRONIZATION_TIMEOUT_EVENT_ID | ROAMING_TRIGGER_LOW_RSSI_EVENT_ID | ROAMING_TRIGGER_REGAINED_RSSI_EVENT_ID | REGAINED_BSS_EVENT_ID | BT_PTA_SENSE_EVENT_ID | BT_PTA_PREDICTION_EVENT_ID | JOIN_EVENT_COMPLETE_ID | PS_REPORT_EVENT_ID; ret = wl1251_event_unmask(wl); if (ret < 0) { wl1251_error("EVENT mask setting failed"); return ret; } wl1251_event_mbox_config(wl); /* firmware startup completed */ return 0; } static int wl1251_boot_upload_firmware(struct wl1251 *wl) { int addr, chunk_num, partition_limit; size_t fw_data_len, len; u8 *p, *buf; /* whal_FwCtrl_LoadFwImageSm() */ wl1251_debug(DEBUG_BOOT, "chip id before fw upload: 0x%x", wl1251_reg_read32(wl, CHIP_ID_B)); /* 10.0 check firmware length and set partition */ fw_data_len = (wl->fw[4] << 24) | (wl->fw[5] << 16) | (wl->fw[6] << 8) | (wl->fw[7]); wl1251_debug(DEBUG_BOOT, "fw_data_len %zu chunk_size %d", fw_data_len, CHUNK_SIZE); if ((fw_data_len % 4) != 0) { wl1251_error("firmware length not multiple of four"); return -EIO; } buf = kmalloc(CHUNK_SIZE, GFP_KERNEL); if (!buf) { wl1251_error("allocation for firmware upload chunk failed"); return -ENOMEM; } wl1251_set_partition(wl, WL1251_PART_DOWN_MEM_START, WL1251_PART_DOWN_MEM_SIZE, WL1251_PART_DOWN_REG_START, WL1251_PART_DOWN_REG_SIZE); /* 10.1 set partition limit and chunk num */ chunk_num = 0; partition_limit = WL1251_PART_DOWN_MEM_SIZE; while (chunk_num < fw_data_len / CHUNK_SIZE) { /* 10.2 update partition, if needed */ addr = WL1251_PART_DOWN_MEM_START + (chunk_num + 2) * CHUNK_SIZE; if (addr > partition_limit) { addr = WL1251_PART_DOWN_MEM_START + chunk_num * CHUNK_SIZE; partition_limit = chunk_num * CHUNK_SIZE + WL1251_PART_DOWN_MEM_SIZE; wl1251_set_partition(wl, addr, WL1251_PART_DOWN_MEM_SIZE, WL1251_PART_DOWN_REG_START, WL1251_PART_DOWN_REG_SIZE); } /* 10.3 upload the chunk */ addr = WL1251_PART_DOWN_MEM_START + chunk_num * CHUNK_SIZE; p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE; wl1251_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x", p, addr); /* need to copy the chunk for dma */ len = CHUNK_SIZE; memcpy(buf, p, len); wl1251_mem_write(wl, addr, buf, len); chunk_num++; } /* 10.4 upload the last chunk */ addr = WL1251_PART_DOWN_MEM_START + chunk_num * CHUNK_SIZE; p = wl->fw + FW_HDR_SIZE + chunk_num * CHUNK_SIZE; /* need to copy the chunk for dma */ len = fw_data_len % CHUNK_SIZE; memcpy(buf, p, len); wl1251_debug(DEBUG_BOOT, "uploading fw last chunk (%zu B) 0x%p to 0x%x", len, p, addr); wl1251_mem_write(wl, addr, buf, len); kfree(buf); return 0; } static int wl1251_boot_upload_nvs(struct wl1251 *wl) { size_t nvs_len, nvs_bytes_written, burst_len; int nvs_start, i; u32 dest_addr, val; u8 *nvs_ptr, *nvs; nvs = wl->nvs; if (nvs == NULL) return -ENODEV; nvs_ptr = nvs; nvs_len = wl->nvs_len; nvs_start = wl->fw_len; /* * Layout before the actual NVS tables: * 1 byte : burst length. * 2 bytes: destination address. * n bytes: data to burst copy. * * This is ended by a 0 length, then the NVS tables. */ while (nvs_ptr[0]) { burst_len = nvs_ptr[0]; dest_addr = (nvs_ptr[1] & 0xfe) | ((u32)(nvs_ptr[2] << 8)); /* We move our pointer to the data */ nvs_ptr += 3; for (i = 0; i < burst_len; i++) { val = (nvs_ptr[0] | (nvs_ptr[1] << 8) | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24)); wl1251_debug(DEBUG_BOOT, "nvs burst write 0x%x: 0x%x", dest_addr, val); wl1251_mem_write32(wl, dest_addr, val); nvs_ptr += 4; dest_addr += 4; } } /* * We've reached the first zero length, the first NVS table * is 7 bytes further. */ nvs_ptr += 7; nvs_len -= nvs_ptr - nvs; nvs_len = ALIGN(nvs_len, 4); /* Now we must set the partition correctly */ wl1251_set_partition(wl, nvs_start, WL1251_PART_DOWN_MEM_SIZE, WL1251_PART_DOWN_REG_START, WL1251_PART_DOWN_REG_SIZE); /* And finally we upload the NVS tables */ nvs_bytes_written = 0; while (nvs_bytes_written < nvs_len) { val = (nvs_ptr[0] | (nvs_ptr[1] << 8) | (nvs_ptr[2] << 16) | (nvs_ptr[3] << 24)); wl1251_debug(DEBUG_BOOT, "nvs write table 0x%x: 0x%x", nvs_start, val); wl1251_mem_write32(wl, nvs_start, val); nvs_ptr += 4; nvs_bytes_written += 4; nvs_start += 4; } return 0; } int wl1251_boot(struct wl1251 *wl) { int ret = 0, minor_minor_e2_ver; u32 tmp, boot_data; /* halt embedded ARM CPU while loading firmware */ wl1251_reg_write32(wl, ACX_REG_ECPU_CONTROL, ECPU_CONTROL_HALT); ret = wl1251_boot_soft_reset(wl); if (ret < 0) goto out; /* 2. start processing NVS file */ if (wl->use_eeprom) { wl1251_reg_write32(wl, ACX_REG_EE_START, START_EEPROM_MGR); /* Wait for EEPROM NVS burst read to complete */ msleep(40); wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, USE_EEPROM); } else { ret = wl1251_boot_upload_nvs(wl); if (ret < 0) goto out; /* write firmware's last address (ie. it's length) to * ACX_EEPROMLESS_IND_REG */ wl1251_reg_write32(wl, ACX_EEPROMLESS_IND_REG, wl->fw_len); } /* 6. read the EEPROM parameters */ tmp = wl1251_reg_read32(wl, SCR_PAD2); /* 7. read bootdata */ wl->boot_attr.radio_type = (tmp & 0x0000FF00) >> 8; wl->boot_attr.major = (tmp & 0x00FF0000) >> 16; tmp = wl1251_reg_read32(wl, SCR_PAD3); /* 8. check bootdata and call restart sequence */ wl->boot_attr.minor = (tmp & 0x00FF0000) >> 16; minor_minor_e2_ver = (tmp & 0xFF000000) >> 24; wl1251_debug(DEBUG_BOOT, "radioType 0x%x majorE2Ver 0x%x " "minorE2Ver 0x%x minor_minor_e2_ver 0x%x", wl->boot_attr.radio_type, wl->boot_attr.major, wl->boot_attr.minor, minor_minor_e2_ver); ret = wl1251_boot_init_seq(wl); if (ret < 0) goto out; /* 9. NVS processing done */ boot_data = wl1251_reg_read32(wl, ACX_REG_ECPU_CONTROL); wl1251_debug(DEBUG_BOOT, "halt boot_data 0x%x", boot_data); /* 10. check that ECPU_CONTROL_HALT bits are set in * pWhalBus->uBootData and start uploading firmware */ if ((boot_data & ECPU_CONTROL_HALT) == 0) { wl1251_error("boot failed, ECPU_CONTROL_HALT not set"); ret = -EIO; goto out; } ret = wl1251_boot_upload_firmware(wl); if (ret < 0) goto out; /* 10.5 start firmware */ ret = wl1251_boot_run_firmware(wl); if (ret < 0) goto out; out: return ret; }
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