diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx/boot.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/boot.c | 591 |
1 files changed, 0 insertions, 591 deletions
diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c deleted file mode 100644 index 1eafb817583..00000000000 --- a/drivers/net/wireless/wl12xx/boot.c +++ /dev/null @@ -1,591 +0,0 @@ -/* - * This file is part of wl1271 - * - * Copyright (C) 2008-2010 Nokia Corporation - * - * Contact: Luciano Coelho <luciano.coelho@nokia.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/gpio.h> -#include <linux/slab.h> - -#include "acx.h" -#include "reg.h" -#include "boot.h" -#include "io.h" -#include "event.h" - -static struct wl1271_partition_set part_table[PART_TABLE_LEN] = { - [PART_DOWN] = { - .mem = { - .start = 0x00000000, - .size = 0x000177c0 - }, - .reg = { - .start = REGISTERS_BASE, - .size = 0x00008800 - }, - .mem2 = { - .start = 0x00000000, - .size = 0x00000000 - }, - .mem3 = { - .start = 0x00000000, - .size = 0x00000000 - }, - }, - - [PART_WORK] = { - .mem = { - .start = 0x00040000, - .size = 0x00014fc0 - }, - .reg = { - .start = REGISTERS_BASE, - .size = 0x0000a000 - }, - .mem2 = { - .start = 0x003004f8, - .size = 0x00000004 - }, - .mem3 = { - .start = 0x00040404, - .size = 0x00000000 - }, - }, - - [PART_DRPW] = { - .mem = { - .start = 0x00040000, - .size = 0x00014fc0 - }, - .reg = { - .start = DRPW_BASE, - .size = 0x00006000 - }, - .mem2 = { - .start = 0x00000000, - .size = 0x00000000 - }, - .mem3 = { - .start = 0x00000000, - .size = 0x00000000 - } - } -}; - -static void wl1271_boot_set_ecpu_ctrl(struct wl1271 *wl, u32 flag) -{ - u32 cpu_ctrl; - - /* 10.5.0 run the firmware (I) */ - cpu_ctrl = wl1271_read32(wl, ACX_REG_ECPU_CONTROL); - - /* 10.5.1 run the firmware (II) */ - cpu_ctrl |= flag; - wl1271_write32(wl, ACX_REG_ECPU_CONTROL, cpu_ctrl); -} - -static void wl1271_boot_fw_version(struct wl1271 *wl) -{ - struct wl1271_static_data static_data; - - wl1271_read(wl, wl->cmd_box_addr, &static_data, sizeof(static_data), - false); - - strncpy(wl->chip.fw_ver, static_data.fw_version, - sizeof(wl->chip.fw_ver)); - - /* make sure the string is NULL-terminated */ - wl->chip.fw_ver[sizeof(wl->chip.fw_ver) - 1] = '\0'; -} - -static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf, - size_t fw_data_len, u32 dest) -{ - struct wl1271_partition_set partition; - int addr, chunk_num, partition_limit; - u8 *p, *chunk; - - /* whal_FwCtrl_LoadFwImageSm() */ - - wl1271_debug(DEBUG_BOOT, "starting firmware upload"); - - wl1271_debug(DEBUG_BOOT, "fw_data_len %zd chunk_size %d", - fw_data_len, CHUNK_SIZE); - - if ((fw_data_len % 4) != 0) { - wl1271_error("firmware length not multiple of four"); - return -EIO; - } - - chunk = kmalloc(CHUNK_SIZE, GFP_KERNEL); - if (!chunk) { - wl1271_error("allocation for firmware upload chunk failed"); - return -ENOMEM; - } - - memcpy(&partition, &part_table[PART_DOWN], sizeof(partition)); - partition.mem.start = dest; - wl1271_set_partition(wl, &partition); - - /* 10.1 set partition limit and chunk num */ - chunk_num = 0; - partition_limit = part_table[PART_DOWN].mem.size; - - while (chunk_num < fw_data_len / CHUNK_SIZE) { - /* 10.2 update partition, if needed */ - addr = dest + (chunk_num + 2) * CHUNK_SIZE; - if (addr > partition_limit) { - addr = dest + chunk_num * CHUNK_SIZE; - partition_limit = chunk_num * CHUNK_SIZE + - part_table[PART_DOWN].mem.size; - partition.mem.start = addr; - wl1271_set_partition(wl, &partition); - } - - /* 10.3 upload the chunk */ - addr = dest + chunk_num * CHUNK_SIZE; - p = buf + chunk_num * CHUNK_SIZE; - memcpy(chunk, p, CHUNK_SIZE); - wl1271_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x", - p, addr); - wl1271_write(wl, addr, chunk, CHUNK_SIZE, false); - - chunk_num++; - } - - /* 10.4 upload the last chunk */ - addr = dest + chunk_num * CHUNK_SIZE; - p = buf + chunk_num * CHUNK_SIZE; - memcpy(chunk, p, fw_data_len % CHUNK_SIZE); - wl1271_debug(DEBUG_BOOT, "uploading fw last chunk (%zd B) 0x%p to 0x%x", - fw_data_len % CHUNK_SIZE, p, addr); - wl1271_write(wl, addr, chunk, fw_data_len % CHUNK_SIZE, false); - - kfree(chunk); - return 0; -} - -static int wl1271_boot_upload_firmware(struct wl1271 *wl) -{ - u32 chunks, addr, len; - int ret = 0; - u8 *fw; - - fw = wl->fw; - chunks = be32_to_cpup((__be32 *) fw); - fw += sizeof(u32); - - wl1271_debug(DEBUG_BOOT, "firmware chunks to be uploaded: %u", chunks); - - while (chunks--) { - addr = be32_to_cpup((__be32 *) fw); - fw += sizeof(u32); - len = be32_to_cpup((__be32 *) fw); - fw += sizeof(u32); - - if (len > 300000) { - wl1271_info("firmware chunk too long: %u", len); - return -EINVAL; - } - wl1271_debug(DEBUG_BOOT, "chunk %d addr 0x%x len %u", - chunks, addr, len); - ret = wl1271_boot_upload_firmware_chunk(wl, fw, len, addr); - if (ret != 0) - break; - fw += len; - } - - return ret; -} - -static int wl1271_boot_upload_nvs(struct wl1271 *wl) -{ - size_t nvs_len, burst_len; - int i; - u32 dest_addr, val; - u8 *nvs_ptr, *nvs_aligned; - - if (wl->nvs == NULL) - return -ENODEV; - - /* - * FIXME: the LEGACY NVS image support (NVS's missing the 5GHz band - * configurations) can be removed when those NVS files stop floating - * around. - */ - if (wl->nvs_len == sizeof(struct wl1271_nvs_file) || - wl->nvs_len == WL1271_INI_LEGACY_NVS_FILE_SIZE) { - if (wl->nvs->general_params.dual_mode_select) - wl->enable_11a = true; - } - - if (wl->nvs_len != sizeof(struct wl1271_nvs_file) && - (wl->nvs_len != WL1271_INI_LEGACY_NVS_FILE_SIZE || - wl->enable_11a)) { - wl1271_error("nvs size is not as expected: %zu != %zu", - wl->nvs_len, sizeof(struct wl1271_nvs_file)); - kfree(wl->nvs); - wl->nvs = NULL; - wl->nvs_len = 0; - return -EILSEQ; - } - - /* only the first part of the NVS needs to be uploaded */ - nvs_len = sizeof(wl->nvs->nvs); - nvs_ptr = (u8 *)wl->nvs->nvs; - - /* update current MAC address to NVS */ - nvs_ptr[11] = wl->mac_addr[0]; - nvs_ptr[10] = wl->mac_addr[1]; - nvs_ptr[6] = wl->mac_addr[2]; - nvs_ptr[5] = wl->mac_addr[3]; - nvs_ptr[4] = wl->mac_addr[4]; - nvs_ptr[3] = wl->mac_addr[5]; - - /* - * 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. - */ - - /* FIXME: Do we need to check here whether the LSB is 1? */ - while (nvs_ptr[0]) { - burst_len = nvs_ptr[0]; - dest_addr = (nvs_ptr[1] & 0xfe) | ((u32)(nvs_ptr[2] << 8)); - - /* - * Due to our new wl1271_translate_reg_addr function, - * we need to add the REGISTER_BASE to the destination - */ - dest_addr += REGISTERS_BASE; - - /* 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)); - - wl1271_debug(DEBUG_BOOT, - "nvs burst write 0x%x: 0x%x", - dest_addr, val); - wl1271_write32(wl, dest_addr, val); - - nvs_ptr += 4; - dest_addr += 4; - } - } - - /* - * We've reached the first zero length, the first NVS table - * is located at an aligned offset which is at least 7 bytes further. - */ - nvs_ptr = (u8 *)wl->nvs->nvs + - ALIGN(nvs_ptr - (u8 *)wl->nvs->nvs + 7, 4); - nvs_len -= nvs_ptr - (u8 *)wl->nvs->nvs; - - /* Now we must set the partition correctly */ - wl1271_set_partition(wl, &part_table[PART_WORK]); - - /* Copy the NVS tables to a new block to ensure alignment */ - nvs_aligned = kmemdup(nvs_ptr, nvs_len, GFP_KERNEL); - if (!nvs_aligned) - return -ENOMEM; - - /* And finally we upload the NVS tables */ - wl1271_write(wl, CMD_MBOX_ADDRESS, nvs_aligned, nvs_len, false); - - kfree(nvs_aligned); - return 0; -} - -static void wl1271_boot_enable_interrupts(struct wl1271 *wl) -{ - wl1271_enable_interrupts(wl); - wl1271_write32(wl, ACX_REG_INTERRUPT_MASK, - WL1271_ACX_INTR_ALL & ~(WL1271_INTR_MASK)); - wl1271_write32(wl, HI_CFG, HI_CFG_DEF_VAL); -} - -static int wl1271_boot_soft_reset(struct wl1271 *wl) -{ - unsigned long timeout; - u32 boot_data; - - /* perform soft reset */ - wl1271_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 = wl1271_read32(wl, ACX_REG_SLV_SOFT_RESET); - wl1271_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 */ - wl1271_error("soft reset timeout"); - return -1; - } - - udelay(SOFT_RESET_STALL_TIME); - } - - /* disable Rx/Tx */ - wl1271_write32(wl, ENABLE, 0x0); - - /* disable auto calibration on start*/ - wl1271_write32(wl, SPARE_A2, 0xffff); - - return 0; -} - -static int wl1271_boot_run_firmware(struct wl1271 *wl) -{ - int loop, ret; - u32 chip_id, intr; - - wl1271_boot_set_ecpu_ctrl(wl, ECPU_CONTROL_HALT); - - chip_id = wl1271_read32(wl, CHIP_ID_B); - - wl1271_debug(DEBUG_BOOT, "chip id after firmware boot: 0x%x", chip_id); - - if (chip_id != wl->chip.id) { - wl1271_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); - intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR); - - if (intr == 0xffffffff) { - wl1271_error("error reading hardware complete " - "init indication"); - return -EIO; - } - /* check that ACX_INTR_INIT_COMPLETE is enabled */ - else if (intr & WL1271_ACX_INTR_INIT_COMPLETE) { - wl1271_write32(wl, ACX_REG_INTERRUPT_ACK, - WL1271_ACX_INTR_INIT_COMPLETE); - break; - } - } - - if (loop > INIT_LOOP) { - wl1271_error("timeout waiting for the hardware to " - "complete initialization"); - return -EIO; - } - - /* get hardware config command mail box */ - wl->cmd_box_addr = wl1271_read32(wl, REG_COMMAND_MAILBOX_PTR); - - /* get hardware config event mail box */ - wl->event_box_addr = wl1271_read32(wl, REG_EVENT_MAILBOX_PTR); - - /* set the working partition to its "running" mode offset */ - wl1271_set_partition(wl, &part_table[PART_WORK]); - - wl1271_debug(DEBUG_MAILBOX, "cmd_box_addr 0x%x event_box_addr 0x%x", - wl->cmd_box_addr, wl->event_box_addr); - - wl1271_boot_fw_version(wl); - - /* - * in case of full asynchronous mode the firmware event must be - * ready to receive event from the command mailbox - */ - - /* unmask required mbox events */ - wl->event_mask = BSS_LOSE_EVENT_ID | - SCAN_COMPLETE_EVENT_ID | - PS_REPORT_EVENT_ID | - JOIN_EVENT_COMPLETE_ID | - DISCONNECT_EVENT_COMPLETE_ID | - RSSI_SNR_TRIGGER_0_EVENT_ID | - PSPOLL_DELIVERY_FAILURE_EVENT_ID | - SOFT_GEMINI_SENSE_EVENT_ID; - - ret = wl1271_event_unmask(wl); - if (ret < 0) { - wl1271_error("EVENT mask setting failed"); - return ret; - } - - wl1271_event_mbox_config(wl); - - /* firmware startup completed */ - return 0; -} - -static int wl1271_boot_write_irq_polarity(struct wl1271 *wl) -{ - u32 polarity; - - polarity = wl1271_top_reg_read(wl, OCP_REG_POLARITY); - - /* We use HIGH polarity, so unset the LOW bit */ - polarity &= ~POLARITY_LOW; - wl1271_top_reg_write(wl, OCP_REG_POLARITY, polarity); - - return 0; -} - -static void wl1271_boot_hw_version(struct wl1271 *wl) -{ - u32 fuse; - - fuse = wl1271_top_reg_read(wl, REG_FUSE_DATA_2_1); - fuse = (fuse & PG_VER_MASK) >> PG_VER_OFFSET; - - wl->hw_pg_ver = (s8)fuse; -} - -int wl1271_boot(struct wl1271 *wl) -{ - int ret = 0; - u32 tmp, clk, pause; - - wl1271_boot_hw_version(wl); - - if (wl->ref_clock == 0 || wl->ref_clock == 2 || wl->ref_clock == 4) - /* ref clk: 19.2/38.4/38.4-XTAL */ - clk = 0x3; - else if (wl->ref_clock == 1 || wl->ref_clock == 3) - /* ref clk: 26/52 */ - clk = 0x5; - else - return -EINVAL; - - if (wl->ref_clock != 0) { - u16 val; - /* Set clock type (open drain) */ - val = wl1271_top_reg_read(wl, OCP_REG_CLK_TYPE); - val &= FREF_CLK_TYPE_BITS; - wl1271_top_reg_write(wl, OCP_REG_CLK_TYPE, val); - - /* Set clock pull mode (no pull) */ - val = wl1271_top_reg_read(wl, OCP_REG_CLK_PULL); - val |= NO_PULL; - wl1271_top_reg_write(wl, OCP_REG_CLK_PULL, val); - } else { - u16 val; - /* Set clock polarity */ - val = wl1271_top_reg_read(wl, OCP_REG_CLK_POLARITY); - val &= FREF_CLK_POLARITY_BITS; - val |= CLK_REQ_OUTN_SEL; - wl1271_top_reg_write(wl, OCP_REG_CLK_POLARITY, val); - } - - wl1271_write32(wl, PLL_PARAMETERS, clk); - - pause = wl1271_read32(wl, PLL_PARAMETERS); - - wl1271_debug(DEBUG_BOOT, "pause1 0x%x", pause); - - pause &= ~(WU_COUNTER_PAUSE_VAL); - pause |= WU_COUNTER_PAUSE_VAL; - wl1271_write32(wl, WU_COUNTER_PAUSE, pause); - - /* Continue the ELP wake up sequence */ - wl1271_write32(wl, WELP_ARM_COMMAND, WELP_ARM_COMMAND_VAL); - udelay(500); - - wl1271_set_partition(wl, &part_table[PART_DRPW]); - - /* Read-modify-write DRPW_SCRATCH_START register (see next state) - to be used by DRPw FW. The RTRIM value will be added by the FW - before taking DRPw out of reset */ - - wl1271_debug(DEBUG_BOOT, "DRPW_SCRATCH_START %08x", DRPW_SCRATCH_START); - clk = wl1271_read32(wl, DRPW_SCRATCH_START); - - wl1271_debug(DEBUG_BOOT, "clk2 0x%x", clk); - - clk |= (wl->ref_clock << 1) << 4; - wl1271_write32(wl, DRPW_SCRATCH_START, clk); - - wl1271_set_partition(wl, &part_table[PART_WORK]); - - /* Disable interrupts */ - wl1271_write32(wl, ACX_REG_INTERRUPT_MASK, WL1271_ACX_INTR_ALL); - - ret = wl1271_boot_soft_reset(wl); - if (ret < 0) - goto out; - - /* 2. start processing NVS file */ - ret = wl1271_boot_upload_nvs(wl); - if (ret < 0) - goto out; - - /* write firmware's last address (ie. it's length) to - * ACX_EEPROMLESS_IND_REG */ - wl1271_debug(DEBUG_BOOT, "ACX_EEPROMLESS_IND_REG"); - - wl1271_write32(wl, ACX_EEPROMLESS_IND_REG, ACX_EEPROMLESS_IND_REG); - - tmp = wl1271_read32(wl, CHIP_ID_B); - - wl1271_debug(DEBUG_BOOT, "chip id 0x%x", tmp); - - /* 6. read the EEPROM parameters */ - tmp = wl1271_read32(wl, SCR_PAD2); - - ret = wl1271_boot_write_irq_polarity(wl); - if (ret < 0) - goto out; - - wl1271_write32(wl, ACX_REG_INTERRUPT_MASK, - WL1271_ACX_ALL_EVENTS_VECTOR); - - /* WL1271: The reference driver skips steps 7 to 10 (jumps directly - * to upload_fw) */ - - ret = wl1271_boot_upload_firmware(wl); - if (ret < 0) - goto out; - - /* 10.5 start firmware */ - ret = wl1271_boot_run_firmware(wl); - if (ret < 0) - goto out; - - /* Enable firmware interrupts now */ - wl1271_boot_enable_interrupts(wl); - - /* set the wl1271 default filters */ - wl->rx_config = WL1271_DEFAULT_RX_CONFIG; - wl->rx_filter = WL1271_DEFAULT_RX_FILTER; - - wl1271_event_mbox_config(wl); - -out: - return ret; -} |