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Diffstat (limited to 'drivers/net/wireless/wl12xx/boot.c')
-rw-r--r--drivers/net/wireless/wl12xx/boot.c295
1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c
deleted file mode 100644
index 48ac08c429b..00000000000
--- a/drivers/net/wireless/wl12xx/boot.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * This file is part of wl12xx
- *
- * Copyright (C) 2008 Nokia Corporation
- *
- * Contact: Kalle Valo <kalle.valo@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 "reg.h"
-#include "boot.h"
-#include "spi.h"
-#include "event.h"
-
-static void wl12xx_boot_enable_interrupts(struct wl12xx *wl)
-{
- enable_irq(wl->irq);
-}
-
-void wl12xx_boot_target_enable_interrupts(struct wl12xx *wl)
-{
- wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask));
- wl12xx_reg_write32(wl, HI_CFG, HI_CFG_DEF_VAL);
-}
-
-int wl12xx_boot_soft_reset(struct wl12xx *wl)
-{
- unsigned long timeout;
- u32 boot_data;
-
- /* perform soft reset */
- wl12xx_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 = wl12xx_reg_read32(wl, ACX_REG_SLV_SOFT_RESET);
- wl12xx_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 */
- wl12xx_error("soft reset timeout");
- return -1;
- }
-
- udelay(SOFT_RESET_STALL_TIME);
- }
-
- /* disable Rx/Tx */
- wl12xx_reg_write32(wl, ENABLE, 0x0);
-
- /* disable auto calibration on start*/
- wl12xx_reg_write32(wl, SPARE_A2, 0xffff);
-
- return 0;
-}
-
-int wl12xx_boot_init_seq(struct wl12xx *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 = wl12xx_reg_read32(wl, SCR_PAD6);
- wl12xx_debug(DEBUG_BOOT, "scr_pad6 0x%x", scr_pad6);
-
- /* read ELP_CMD */
- elp_cmd = wl12xx_reg_read32(wl, ELP_CMD);
- wl12xx_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;
- wl12xx_debug(DEBUG_BOOT, "ref_freq 0x%x", ref_freq);
-
- wl12xx_reg_write32(wl, PLL_CAL_TIME, 0x9);
-
- /*
- * PG 1.2: set the clock buffer time to be 210 usec (CLK_BUF_TIME)
- */
- wl12xx_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;
- wl12xx_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;
- wl12xx_reg_write32(wl, ELP_CMD, elp_cmd);
-
- /* PG 1.2: Set the BB PLL stable time to be 1000usec
- * (PLL_STABLE_TIME) */
- wl12xx_reg_write32(wl, CFG_PLL_SYNC_CNT, 0x20);
-
- /* PG 1.2: read clock request time */
- init_data = wl12xx_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;
- wl12xx_reg_write32(wl, CLK_REQ_TIME, tmp);
-
- /* set BB PLL configurations in RF AFE */
- wl12xx_reg_write32(wl, 0x003058cc, 0x4B5);
-
- /* set RF_AFE_REG_5 */
- wl12xx_reg_write32(wl, 0x003058d4, 0x50);
-
- /* set RF_AFE_CTRL_REG_2 */
- wl12xx_reg_write32(wl, 0x00305948, 0x11c001);
-
- /*
- * change RF PLL and BB PLL divider for VCO clock and adjust VCO
- * bais current(RF_AFE_REG_13)
- */
- wl12xx_reg_write32(wl, 0x003058f4, 0x1e);
-
- /* set BB PLL configurations */
- tmp = LUT[ref_freq][LUT_PARAM_INTEGER_DIVIDER] | 0x00017000;
- wl12xx_reg_write32(wl, 0x00305840, tmp);
-
- /* set fractional divider according to Appendix C-BB PLL
- * Calculations
- */
- tmp = LUT[ref_freq][LUT_PARAM_FRACTIONAL_DIVIDER];
- wl12xx_reg_write32(wl, 0x00305844, tmp);
-
- /* set the initial data for the sigma delta */
- wl12xx_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;
- wl12xx_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;
- wl12xx_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;
- wl12xx_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]
- */
- wl12xx_reg_write32(wl, 0x003058f0, 0x29);
-
- /* enable restart wakeup sequence (ELP_CMD[0]) */
- wl12xx_reg_write32(wl, ELP_CMD, elp_cmd | 0x1);
-
- /* restart sequence completed */
- udelay(2000);
-
- return 0;
-}
-
-int wl12xx_boot_run_firmware(struct wl12xx *wl)
-{
- int loop, ret;
- u32 chip_id, interrupt;
-
- wl->chip.op_set_ecpu_ctrl(wl, ECPU_CONTROL_HALT);
-
- chip_id = wl12xx_reg_read32(wl, CHIP_ID_B);
-
- wl12xx_debug(DEBUG_BOOT, "chip id after firmware boot: 0x%x", chip_id);
-
- if (chip_id != wl->chip.id) {
- wl12xx_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);
- interrupt = wl12xx_reg_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
-
- if (interrupt == 0xffffffff) {
- wl12xx_error("error reading hardware complete "
- "init indication");
- return -EIO;
- }
- /* check that ACX_INTR_INIT_COMPLETE is enabled */
- else if (interrupt & wl->chip.intr_init_complete) {
- wl12xx_reg_write32(wl, ACX_REG_INTERRUPT_ACK,
- wl->chip.intr_init_complete);
- break;
- }
- }
-
- if (loop >= INIT_LOOP) {
- wl12xx_error("timeout waiting for the hardware to "
- "complete initialization");
- return -EIO;
- }
-
- /* get hardware config command mail box */
- wl->cmd_box_addr = wl12xx_reg_read32(wl, REG_COMMAND_MAILBOX_PTR);
-
- /* get hardware config event mail box */
- wl->event_box_addr = wl12xx_reg_read32(wl, REG_EVENT_MAILBOX_PTR);
-
- /* set the working partition to its "running" mode offset */
- wl12xx_set_partition(wl,
- wl->chip.p_table[PART_WORK].mem.start,
- wl->chip.p_table[PART_WORK].mem.size,
- wl->chip.p_table[PART_WORK].reg.start,
- wl->chip.p_table[PART_WORK].reg.size);
-
- wl12xx_debug(DEBUG_MAILBOX, "cmd_box_addr 0x%x event_box_addr 0x%x",
- wl->cmd_box_addr, wl->event_box_addr);
-
- /*
- * in case of full asynchronous mode the firmware event must be
- * ready to receive event from the command mailbox
- */
-
- /* enable gpio interrupts */
- wl12xx_boot_enable_interrupts(wl);
-
- wl->chip.op_target_enable_interrupts(wl);
-
- /* unmask all mbox events */
- wl->event_mask = 0xffffffff;
-
- ret = wl12xx_event_unmask(wl);
- if (ret < 0) {
- wl12xx_error("EVENT mask setting failed");
- return ret;
- }
-
- wl12xx_event_mbox_config(wl);
-
- /* firmware startup completed */
- return 0;
-}