diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmsmac/pmu.c')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmsmac/pmu.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/pmu.c b/drivers/net/wireless/brcm80211/brcmsmac/pmu.c deleted file mode 100644 index 71b80381f..000000000 --- a/drivers/net/wireless/brcm80211/brcmsmac/pmu.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * Copyright (c) 2011 Broadcom Corporation - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION - * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN - * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <linux/delay.h> -#include <linux/io.h> - -#include <brcm_hw_ids.h> -#include <chipcommon.h> -#include <brcmu_utils.h> -#include "pub.h" -#include "aiutils.h" -#include "pmu.h" -#include "soc.h" - -/* - * external LPO crystal frequency - */ -#define EXT_ILP_HZ 32768 - -/* - * Duration for ILP clock frequency measurment in milliseconds - * - * remark: 1000 must be an integer multiple of this duration - */ -#define ILP_CALC_DUR 10 - -/* Fields in pmucontrol */ -#define PCTL_ILP_DIV_MASK 0xffff0000 -#define PCTL_ILP_DIV_SHIFT 16 -#define PCTL_PLL_PLLCTL_UPD 0x00000400 /* rev 2 */ -#define PCTL_NOILP_ON_WAIT 0x00000200 /* rev 1 */ -#define PCTL_HT_REQ_EN 0x00000100 -#define PCTL_ALP_REQ_EN 0x00000080 -#define PCTL_XTALFREQ_MASK 0x0000007c -#define PCTL_XTALFREQ_SHIFT 2 -#define PCTL_ILP_DIV_EN 0x00000002 -#define PCTL_LPO_SEL 0x00000001 - -/* ILP clock */ -#define ILP_CLOCK 32000 - -/* ALP clock on pre-PMU chips */ -#define ALP_CLOCK 20000000 - -/* pmustatus */ -#define PST_EXTLPOAVAIL 0x0100 -#define PST_WDRESET 0x0080 -#define PST_INTPEND 0x0040 -#define PST_SBCLKST 0x0030 -#define PST_SBCLKST_ILP 0x0010 -#define PST_SBCLKST_ALP 0x0020 -#define PST_SBCLKST_HT 0x0030 -#define PST_ALPAVAIL 0x0008 -#define PST_HTAVAIL 0x0004 -#define PST_RESINIT 0x0003 - -/* PMU resource bit position */ -#define PMURES_BIT(bit) (1 << (bit)) - -/* PMU corerev and chip specific PLL controls. - * PMU<rev>_PLL<num>_XX where <rev> is PMU corerev and <num> is an arbitrary - * number to differentiate different PLLs controlled by the same PMU rev. - */ - -/* pmu XtalFreqRatio */ -#define PMU_XTALFREQ_REG_ILPCTR_MASK 0x00001FFF -#define PMU_XTALFREQ_REG_MEASURE_MASK 0x80000000 -#define PMU_XTALFREQ_REG_MEASURE_SHIFT 31 - -/* 4313 resources */ -#define RES4313_BB_PU_RSRC 0 -#define RES4313_ILP_REQ_RSRC 1 -#define RES4313_XTAL_PU_RSRC 2 -#define RES4313_ALP_AVAIL_RSRC 3 -#define RES4313_RADIO_PU_RSRC 4 -#define RES4313_BG_PU_RSRC 5 -#define RES4313_VREG1P4_PU_RSRC 6 -#define RES4313_AFE_PWRSW_RSRC 7 -#define RES4313_RX_PWRSW_RSRC 8 -#define RES4313_TX_PWRSW_RSRC 9 -#define RES4313_BB_PWRSW_RSRC 10 -#define RES4313_SYNTH_PWRSW_RSRC 11 -#define RES4313_MISC_PWRSW_RSRC 12 -#define RES4313_BB_PLL_PWRSW_RSRC 13 -#define RES4313_HT_AVAIL_RSRC 14 -#define RES4313_MACPHY_CLK_AVAIL_RSRC 15 - -u16 si_pmu_fast_pwrup_delay(struct si_pub *sih) -{ - uint delay = PMU_MAX_TRANSITION_DLY; - - switch (ai_get_chip_id(sih)) { - case BCMA_CHIP_ID_BCM43224: - case BCMA_CHIP_ID_BCM43225: - case BCMA_CHIP_ID_BCM4313: - delay = 3700; - break; - default: - break; - } - - return (u16) delay; -} - -u32 si_pmu_measure_alpclk(struct si_pub *sih) -{ - struct si_info *sii = container_of(sih, struct si_info, pub); - struct bcma_device *core; - u32 alp_khz; - - if (ai_get_pmurev(sih) < 10) - return 0; - - /* Remember original core before switch to chipc */ - core = sii->icbus->drv_cc.core; - - if (bcma_read32(core, CHIPCREGOFFS(pmustatus)) & PST_EXTLPOAVAIL) { - u32 ilp_ctr, alp_hz; - - /* - * Enable the reg to measure the freq, - * in case it was disabled before - */ - bcma_write32(core, CHIPCREGOFFS(pmu_xtalfreq), - 1U << PMU_XTALFREQ_REG_MEASURE_SHIFT); - - /* Delay for well over 4 ILP clocks */ - udelay(1000); - - /* Read the latched number of ALP ticks per 4 ILP ticks */ - ilp_ctr = bcma_read32(core, CHIPCREGOFFS(pmu_xtalfreq)) & - PMU_XTALFREQ_REG_ILPCTR_MASK; - - /* - * Turn off the PMU_XTALFREQ_REG_MEASURE_SHIFT - * bit to save power - */ - bcma_write32(core, CHIPCREGOFFS(pmu_xtalfreq), 0); - - /* Calculate ALP frequency */ - alp_hz = (ilp_ctr * EXT_ILP_HZ) / 4; - - /* - * Round to nearest 100KHz, and at - * the same time convert to KHz - */ - alp_khz = (alp_hz + 50000) / 100000 * 100; - } else - alp_khz = 0; - - return alp_khz; -} |