603 lines
19 KiB
C
603 lines
19 KiB
C
/*
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* Sonics Silicon Backplane
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* Broadcom ChipCommon Power Management Unit driver
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*
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* Copyright 2009, Michael Buesch <mb@bu3sch.de>
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* Copyright 2007, Broadcom Corporation
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*
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* Licensed under the GNU/GPL. See COPYING for details.
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*/
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#include <linux/ssb/ssb.h>
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#include <linux/ssb/ssb_regs.h>
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#include <linux/ssb/ssb_driver_chipcommon.h>
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#include <linux/delay.h>
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#include "ssb_private.h"
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static u32 ssb_chipco_pll_read(struct ssb_chipcommon *cc, u32 offset)
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{
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chipco_write32(cc, SSB_CHIPCO_PLLCTL_ADDR, offset);
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return chipco_read32(cc, SSB_CHIPCO_PLLCTL_DATA);
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}
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static void ssb_chipco_pll_write(struct ssb_chipcommon *cc,
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u32 offset, u32 value)
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{
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chipco_write32(cc, SSB_CHIPCO_PLLCTL_ADDR, offset);
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chipco_write32(cc, SSB_CHIPCO_PLLCTL_DATA, value);
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}
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static void ssb_chipco_regctl_maskset(struct ssb_chipcommon *cc,
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u32 offset, u32 mask, u32 set)
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{
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u32 value;
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chipco_read32(cc, SSB_CHIPCO_REGCTL_ADDR);
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chipco_write32(cc, SSB_CHIPCO_REGCTL_ADDR, offset);
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chipco_read32(cc, SSB_CHIPCO_REGCTL_ADDR);
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value = chipco_read32(cc, SSB_CHIPCO_REGCTL_DATA);
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value &= mask;
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value |= set;
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chipco_write32(cc, SSB_CHIPCO_REGCTL_DATA, value);
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chipco_read32(cc, SSB_CHIPCO_REGCTL_DATA);
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}
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struct pmu0_plltab_entry {
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u16 freq; /* Crystal frequency in kHz.*/
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u8 xf; /* Crystal frequency value for PMU control */
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u8 wb_int;
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u32 wb_frac;
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};
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static const struct pmu0_plltab_entry pmu0_plltab[] = {
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{ .freq = 12000, .xf = 1, .wb_int = 73, .wb_frac = 349525, },
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{ .freq = 13000, .xf = 2, .wb_int = 67, .wb_frac = 725937, },
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{ .freq = 14400, .xf = 3, .wb_int = 61, .wb_frac = 116508, },
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{ .freq = 15360, .xf = 4, .wb_int = 57, .wb_frac = 305834, },
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{ .freq = 16200, .xf = 5, .wb_int = 54, .wb_frac = 336579, },
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{ .freq = 16800, .xf = 6, .wb_int = 52, .wb_frac = 399457, },
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{ .freq = 19200, .xf = 7, .wb_int = 45, .wb_frac = 873813, },
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{ .freq = 19800, .xf = 8, .wb_int = 44, .wb_frac = 466033, },
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{ .freq = 20000, .xf = 9, .wb_int = 44, .wb_frac = 0, },
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{ .freq = 25000, .xf = 10, .wb_int = 70, .wb_frac = 419430, },
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{ .freq = 26000, .xf = 11, .wb_int = 67, .wb_frac = 725937, },
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{ .freq = 30000, .xf = 12, .wb_int = 58, .wb_frac = 699050, },
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{ .freq = 38400, .xf = 13, .wb_int = 45, .wb_frac = 873813, },
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{ .freq = 40000, .xf = 14, .wb_int = 45, .wb_frac = 0, },
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};
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#define SSB_PMU0_DEFAULT_XTALFREQ 20000
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static const struct pmu0_plltab_entry * pmu0_plltab_find_entry(u32 crystalfreq)
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{
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const struct pmu0_plltab_entry *e;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(pmu0_plltab); i++) {
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e = &pmu0_plltab[i];
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if (e->freq == crystalfreq)
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return e;
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}
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return NULL;
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}
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/* Tune the PLL to the crystal speed. crystalfreq is in kHz. */
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static void ssb_pmu0_pllinit_r0(struct ssb_chipcommon *cc,
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u32 crystalfreq)
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{
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struct ssb_bus *bus = cc->dev->bus;
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const struct pmu0_plltab_entry *e = NULL;
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u32 pmuctl, tmp, pllctl;
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unsigned int i;
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if ((bus->chip_id == 0x5354) && !crystalfreq) {
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/* The 5354 crystal freq is 25MHz */
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crystalfreq = 25000;
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}
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if (crystalfreq)
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e = pmu0_plltab_find_entry(crystalfreq);
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if (!e)
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e = pmu0_plltab_find_entry(SSB_PMU0_DEFAULT_XTALFREQ);
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BUG_ON(!e);
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crystalfreq = e->freq;
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cc->pmu.crystalfreq = e->freq;
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/* Check if the PLL already is programmed to this frequency. */
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pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
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if (((pmuctl & SSB_CHIPCO_PMU_CTL_XTALFREQ) >> SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) == e->xf) {
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/* We're already there... */
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return;
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}
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ssb_printk(KERN_INFO PFX "Programming PLL to %u.%03u MHz\n",
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(crystalfreq / 1000), (crystalfreq % 1000));
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/* First turn the PLL off. */
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switch (bus->chip_id) {
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case 0x4328:
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chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
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~(1 << SSB_PMURES_4328_BB_PLL_PU));
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chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
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~(1 << SSB_PMURES_4328_BB_PLL_PU));
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break;
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case 0x5354:
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chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
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~(1 << SSB_PMURES_5354_BB_PLL_PU));
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chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
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~(1 << SSB_PMURES_5354_BB_PLL_PU));
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break;
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default:
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SSB_WARN_ON(1);
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}
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for (i = 1500; i; i--) {
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tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
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if (!(tmp & SSB_CHIPCO_CLKCTLST_HAVEHT))
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break;
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udelay(10);
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}
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tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
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if (tmp & SSB_CHIPCO_CLKCTLST_HAVEHT)
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ssb_printk(KERN_EMERG PFX "Failed to turn the PLL off!\n");
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/* Set PDIV in PLL control 0. */
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pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL0);
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if (crystalfreq >= SSB_PMU0_PLLCTL0_PDIV_FREQ)
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pllctl |= SSB_PMU0_PLLCTL0_PDIV_MSK;
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else
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pllctl &= ~SSB_PMU0_PLLCTL0_PDIV_MSK;
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ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL0, pllctl);
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/* Set WILD in PLL control 1. */
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pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL1);
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pllctl &= ~SSB_PMU0_PLLCTL1_STOPMOD;
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pllctl &= ~(SSB_PMU0_PLLCTL1_WILD_IMSK | SSB_PMU0_PLLCTL1_WILD_FMSK);
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pllctl |= ((u32)e->wb_int << SSB_PMU0_PLLCTL1_WILD_IMSK_SHIFT) & SSB_PMU0_PLLCTL1_WILD_IMSK;
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pllctl |= ((u32)e->wb_frac << SSB_PMU0_PLLCTL1_WILD_FMSK_SHIFT) & SSB_PMU0_PLLCTL1_WILD_FMSK;
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if (e->wb_frac == 0)
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pllctl |= SSB_PMU0_PLLCTL1_STOPMOD;
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ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL1, pllctl);
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/* Set WILD in PLL control 2. */
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pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL2);
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pllctl &= ~SSB_PMU0_PLLCTL2_WILD_IMSKHI;
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pllctl |= (((u32)e->wb_int >> 4) << SSB_PMU0_PLLCTL2_WILD_IMSKHI_SHIFT) & SSB_PMU0_PLLCTL2_WILD_IMSKHI;
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ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL2, pllctl);
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/* Set the crystalfrequency and the divisor. */
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pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
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pmuctl &= ~SSB_CHIPCO_PMU_CTL_ILP_DIV;
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pmuctl |= (((crystalfreq + 127) / 128 - 1) << SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT)
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& SSB_CHIPCO_PMU_CTL_ILP_DIV;
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pmuctl &= ~SSB_CHIPCO_PMU_CTL_XTALFREQ;
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pmuctl |= ((u32)e->xf << SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) & SSB_CHIPCO_PMU_CTL_XTALFREQ;
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chipco_write32(cc, SSB_CHIPCO_PMU_CTL, pmuctl);
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}
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struct pmu1_plltab_entry {
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u16 freq; /* Crystal frequency in kHz.*/
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u8 xf; /* Crystal frequency value for PMU control */
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u8 ndiv_int;
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u32 ndiv_frac;
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u8 p1div;
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u8 p2div;
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};
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static const struct pmu1_plltab_entry pmu1_plltab[] = {
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{ .freq = 12000, .xf = 1, .p1div = 3, .p2div = 22, .ndiv_int = 0x9, .ndiv_frac = 0xFFFFEF, },
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{ .freq = 13000, .xf = 2, .p1div = 1, .p2div = 6, .ndiv_int = 0xb, .ndiv_frac = 0x483483, },
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{ .freq = 14400, .xf = 3, .p1div = 1, .p2div = 10, .ndiv_int = 0xa, .ndiv_frac = 0x1C71C7, },
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{ .freq = 15360, .xf = 4, .p1div = 1, .p2div = 5, .ndiv_int = 0xb, .ndiv_frac = 0x755555, },
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{ .freq = 16200, .xf = 5, .p1div = 1, .p2div = 10, .ndiv_int = 0x5, .ndiv_frac = 0x6E9E06, },
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{ .freq = 16800, .xf = 6, .p1div = 1, .p2div = 10, .ndiv_int = 0x5, .ndiv_frac = 0x3CF3CF, },
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{ .freq = 19200, .xf = 7, .p1div = 1, .p2div = 9, .ndiv_int = 0x5, .ndiv_frac = 0x17B425, },
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{ .freq = 19800, .xf = 8, .p1div = 1, .p2div = 11, .ndiv_int = 0x4, .ndiv_frac = 0xA57EB, },
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{ .freq = 20000, .xf = 9, .p1div = 1, .p2div = 11, .ndiv_int = 0x4, .ndiv_frac = 0, },
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{ .freq = 24000, .xf = 10, .p1div = 3, .p2div = 11, .ndiv_int = 0xa, .ndiv_frac = 0, },
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{ .freq = 25000, .xf = 11, .p1div = 5, .p2div = 16, .ndiv_int = 0xb, .ndiv_frac = 0, },
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{ .freq = 26000, .xf = 12, .p1div = 1, .p2div = 2, .ndiv_int = 0x10, .ndiv_frac = 0xEC4EC4, },
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{ .freq = 30000, .xf = 13, .p1div = 3, .p2div = 8, .ndiv_int = 0xb, .ndiv_frac = 0, },
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{ .freq = 38400, .xf = 14, .p1div = 1, .p2div = 5, .ndiv_int = 0x4, .ndiv_frac = 0x955555, },
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{ .freq = 40000, .xf = 15, .p1div = 1, .p2div = 2, .ndiv_int = 0xb, .ndiv_frac = 0, },
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};
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#define SSB_PMU1_DEFAULT_XTALFREQ 15360
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static const struct pmu1_plltab_entry * pmu1_plltab_find_entry(u32 crystalfreq)
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{
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const struct pmu1_plltab_entry *e;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(pmu1_plltab); i++) {
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e = &pmu1_plltab[i];
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if (e->freq == crystalfreq)
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return e;
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}
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return NULL;
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}
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/* Tune the PLL to the crystal speed. crystalfreq is in kHz. */
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static void ssb_pmu1_pllinit_r0(struct ssb_chipcommon *cc,
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u32 crystalfreq)
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{
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struct ssb_bus *bus = cc->dev->bus;
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const struct pmu1_plltab_entry *e = NULL;
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u32 buffer_strength = 0;
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u32 tmp, pllctl, pmuctl;
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unsigned int i;
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if (bus->chip_id == 0x4312) {
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/* We do not touch the BCM4312 PLL and assume
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* the default crystal settings work out-of-the-box. */
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cc->pmu.crystalfreq = 20000;
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return;
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}
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if (crystalfreq)
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e = pmu1_plltab_find_entry(crystalfreq);
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if (!e)
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e = pmu1_plltab_find_entry(SSB_PMU1_DEFAULT_XTALFREQ);
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BUG_ON(!e);
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crystalfreq = e->freq;
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cc->pmu.crystalfreq = e->freq;
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/* Check if the PLL already is programmed to this frequency. */
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pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
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if (((pmuctl & SSB_CHIPCO_PMU_CTL_XTALFREQ) >> SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) == e->xf) {
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/* We're already there... */
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return;
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}
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ssb_printk(KERN_INFO PFX "Programming PLL to %u.%03u MHz\n",
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(crystalfreq / 1000), (crystalfreq % 1000));
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/* First turn the PLL off. */
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switch (bus->chip_id) {
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case 0x4325:
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chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
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~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
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(1 << SSB_PMURES_4325_HT_AVAIL)));
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chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
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~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
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(1 << SSB_PMURES_4325_HT_AVAIL)));
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/* Adjust the BBPLL to 2 on all channels later. */
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buffer_strength = 0x222222;
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break;
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default:
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SSB_WARN_ON(1);
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}
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for (i = 1500; i; i--) {
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tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
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if (!(tmp & SSB_CHIPCO_CLKCTLST_HAVEHT))
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break;
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udelay(10);
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}
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tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
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if (tmp & SSB_CHIPCO_CLKCTLST_HAVEHT)
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ssb_printk(KERN_EMERG PFX "Failed to turn the PLL off!\n");
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/* Set p1div and p2div. */
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pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL0);
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pllctl &= ~(SSB_PMU1_PLLCTL0_P1DIV | SSB_PMU1_PLLCTL0_P2DIV);
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pllctl |= ((u32)e->p1div << SSB_PMU1_PLLCTL0_P1DIV_SHIFT) & SSB_PMU1_PLLCTL0_P1DIV;
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pllctl |= ((u32)e->p2div << SSB_PMU1_PLLCTL0_P2DIV_SHIFT) & SSB_PMU1_PLLCTL0_P2DIV;
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ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL0, pllctl);
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/* Set ndiv int and ndiv mode */
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pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL2);
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pllctl &= ~(SSB_PMU1_PLLCTL2_NDIVINT | SSB_PMU1_PLLCTL2_NDIVMODE);
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pllctl |= ((u32)e->ndiv_int << SSB_PMU1_PLLCTL2_NDIVINT_SHIFT) & SSB_PMU1_PLLCTL2_NDIVINT;
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pllctl |= (1 << SSB_PMU1_PLLCTL2_NDIVMODE_SHIFT) & SSB_PMU1_PLLCTL2_NDIVMODE;
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ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL2, pllctl);
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/* Set ndiv frac */
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pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL3);
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pllctl &= ~SSB_PMU1_PLLCTL3_NDIVFRAC;
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pllctl |= ((u32)e->ndiv_frac << SSB_PMU1_PLLCTL3_NDIVFRAC_SHIFT) & SSB_PMU1_PLLCTL3_NDIVFRAC;
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ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL3, pllctl);
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/* Change the drive strength, if required. */
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if (buffer_strength) {
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pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL5);
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pllctl &= ~SSB_PMU1_PLLCTL5_CLKDRV;
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pllctl |= (buffer_strength << SSB_PMU1_PLLCTL5_CLKDRV_SHIFT) & SSB_PMU1_PLLCTL5_CLKDRV;
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ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL5, pllctl);
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}
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/* Tune the crystalfreq and the divisor. */
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pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
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pmuctl &= ~(SSB_CHIPCO_PMU_CTL_ILP_DIV | SSB_CHIPCO_PMU_CTL_XTALFREQ);
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pmuctl |= ((((u32)e->freq + 127) / 128 - 1) << SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT)
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& SSB_CHIPCO_PMU_CTL_ILP_DIV;
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pmuctl |= ((u32)e->xf << SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) & SSB_CHIPCO_PMU_CTL_XTALFREQ;
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chipco_write32(cc, SSB_CHIPCO_PMU_CTL, pmuctl);
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}
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static void ssb_pmu_pll_init(struct ssb_chipcommon *cc)
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{
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struct ssb_bus *bus = cc->dev->bus;
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u32 crystalfreq = 0; /* in kHz. 0 = keep default freq. */
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if (bus->bustype == SSB_BUSTYPE_SSB) {
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/* TODO: The user may override the crystal frequency. */
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}
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switch (bus->chip_id) {
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case 0x4312:
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case 0x4325:
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ssb_pmu1_pllinit_r0(cc, crystalfreq);
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break;
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case 0x4328:
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case 0x5354:
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ssb_pmu0_pllinit_r0(cc, crystalfreq);
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break;
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default:
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ssb_printk(KERN_ERR PFX
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"ERROR: PLL init unknown for device %04X\n",
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bus->chip_id);
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}
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}
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struct pmu_res_updown_tab_entry {
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u8 resource; /* The resource number */
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u16 updown; /* The updown value */
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};
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enum pmu_res_depend_tab_task {
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PMU_RES_DEP_SET = 1,
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PMU_RES_DEP_ADD,
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PMU_RES_DEP_REMOVE,
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};
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struct pmu_res_depend_tab_entry {
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u8 resource; /* The resource number */
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u8 task; /* SET | ADD | REMOVE */
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u32 depend; /* The depend mask */
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};
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static const struct pmu_res_updown_tab_entry pmu_res_updown_tab_4328a0[] = {
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{ .resource = SSB_PMURES_4328_EXT_SWITCHER_PWM, .updown = 0x0101, },
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{ .resource = SSB_PMURES_4328_BB_SWITCHER_PWM, .updown = 0x1F01, },
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{ .resource = SSB_PMURES_4328_BB_SWITCHER_BURST, .updown = 0x010F, },
|
|
{ .resource = SSB_PMURES_4328_BB_EXT_SWITCHER_BURST, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_ILP_REQUEST, .updown = 0x0202, },
|
|
{ .resource = SSB_PMURES_4328_RADIO_SWITCHER_PWM, .updown = 0x0F01, },
|
|
{ .resource = SSB_PMURES_4328_RADIO_SWITCHER_BURST, .updown = 0x0F01, },
|
|
{ .resource = SSB_PMURES_4328_ROM_SWITCH, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_PA_REF_LDO, .updown = 0x0F01, },
|
|
{ .resource = SSB_PMURES_4328_RADIO_LDO, .updown = 0x0F01, },
|
|
{ .resource = SSB_PMURES_4328_AFE_LDO, .updown = 0x0F01, },
|
|
{ .resource = SSB_PMURES_4328_PLL_LDO, .updown = 0x0F01, },
|
|
{ .resource = SSB_PMURES_4328_BG_FILTBYP, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_TX_FILTBYP, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_RX_FILTBYP, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_XTAL_PU, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_XTAL_EN, .updown = 0xA001, },
|
|
{ .resource = SSB_PMURES_4328_BB_PLL_FILTBYP, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_RF_PLL_FILTBYP, .updown = 0x0101, },
|
|
{ .resource = SSB_PMURES_4328_BB_PLL_PU, .updown = 0x0701, },
|
|
};
|
|
|
|
static const struct pmu_res_depend_tab_entry pmu_res_depend_tab_4328a0[] = {
|
|
{
|
|
/* Adjust ILP Request to avoid forcing EXT/BB into burst mode. */
|
|
.resource = SSB_PMURES_4328_ILP_REQUEST,
|
|
.task = PMU_RES_DEP_SET,
|
|
.depend = ((1 << SSB_PMURES_4328_EXT_SWITCHER_PWM) |
|
|
(1 << SSB_PMURES_4328_BB_SWITCHER_PWM)),
|
|
},
|
|
};
|
|
|
|
static const struct pmu_res_updown_tab_entry pmu_res_updown_tab_4325a0[] = {
|
|
{ .resource = SSB_PMURES_4325_XTAL_PU, .updown = 0x1501, },
|
|
};
|
|
|
|
static const struct pmu_res_depend_tab_entry pmu_res_depend_tab_4325a0[] = {
|
|
{
|
|
/* Adjust HT-Available dependencies. */
|
|
.resource = SSB_PMURES_4325_HT_AVAIL,
|
|
.task = PMU_RES_DEP_ADD,
|
|
.depend = ((1 << SSB_PMURES_4325_RX_PWRSW_PU) |
|
|
(1 << SSB_PMURES_4325_TX_PWRSW_PU) |
|
|
(1 << SSB_PMURES_4325_LOGEN_PWRSW_PU) |
|
|
(1 << SSB_PMURES_4325_AFE_PWRSW_PU)),
|
|
},
|
|
};
|
|
|
|
static void ssb_pmu_resources_init(struct ssb_chipcommon *cc)
|
|
{
|
|
struct ssb_bus *bus = cc->dev->bus;
|
|
u32 min_msk = 0, max_msk = 0;
|
|
unsigned int i;
|
|
const struct pmu_res_updown_tab_entry *updown_tab = NULL;
|
|
unsigned int updown_tab_size;
|
|
const struct pmu_res_depend_tab_entry *depend_tab = NULL;
|
|
unsigned int depend_tab_size;
|
|
|
|
switch (bus->chip_id) {
|
|
case 0x4312:
|
|
/* We keep the default settings:
|
|
* min_msk = 0xCBB
|
|
* max_msk = 0x7FFFF
|
|
*/
|
|
break;
|
|
case 0x4325:
|
|
/* Power OTP down later. */
|
|
min_msk = (1 << SSB_PMURES_4325_CBUCK_BURST) |
|
|
(1 << SSB_PMURES_4325_LNLDO2_PU);
|
|
if (chipco_read32(cc, SSB_CHIPCO_CHIPSTAT) &
|
|
SSB_CHIPCO_CHST_4325_PMUTOP_2B)
|
|
min_msk |= (1 << SSB_PMURES_4325_CLDO_CBUCK_BURST);
|
|
/* The PLL may turn on, if it decides so. */
|
|
max_msk = 0xFFFFF;
|
|
updown_tab = pmu_res_updown_tab_4325a0;
|
|
updown_tab_size = ARRAY_SIZE(pmu_res_updown_tab_4325a0);
|
|
depend_tab = pmu_res_depend_tab_4325a0;
|
|
depend_tab_size = ARRAY_SIZE(pmu_res_depend_tab_4325a0);
|
|
break;
|
|
case 0x4328:
|
|
min_msk = (1 << SSB_PMURES_4328_EXT_SWITCHER_PWM) |
|
|
(1 << SSB_PMURES_4328_BB_SWITCHER_PWM) |
|
|
(1 << SSB_PMURES_4328_XTAL_EN);
|
|
/* The PLL may turn on, if it decides so. */
|
|
max_msk = 0xFFFFF;
|
|
updown_tab = pmu_res_updown_tab_4328a0;
|
|
updown_tab_size = ARRAY_SIZE(pmu_res_updown_tab_4328a0);
|
|
depend_tab = pmu_res_depend_tab_4328a0;
|
|
depend_tab_size = ARRAY_SIZE(pmu_res_depend_tab_4328a0);
|
|
break;
|
|
case 0x5354:
|
|
/* The PLL may turn on, if it decides so. */
|
|
max_msk = 0xFFFFF;
|
|
break;
|
|
default:
|
|
ssb_printk(KERN_ERR PFX
|
|
"ERROR: PMU resource config unknown for device %04X\n",
|
|
bus->chip_id);
|
|
}
|
|
|
|
if (updown_tab) {
|
|
for (i = 0; i < updown_tab_size; i++) {
|
|
chipco_write32(cc, SSB_CHIPCO_PMU_RES_TABSEL,
|
|
updown_tab[i].resource);
|
|
chipco_write32(cc, SSB_CHIPCO_PMU_RES_UPDNTM,
|
|
updown_tab[i].updown);
|
|
}
|
|
}
|
|
if (depend_tab) {
|
|
for (i = 0; i < depend_tab_size; i++) {
|
|
chipco_write32(cc, SSB_CHIPCO_PMU_RES_TABSEL,
|
|
depend_tab[i].resource);
|
|
switch (depend_tab[i].task) {
|
|
case PMU_RES_DEP_SET:
|
|
chipco_write32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
|
|
depend_tab[i].depend);
|
|
break;
|
|
case PMU_RES_DEP_ADD:
|
|
chipco_set32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
|
|
depend_tab[i].depend);
|
|
break;
|
|
case PMU_RES_DEP_REMOVE:
|
|
chipco_mask32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
|
|
~(depend_tab[i].depend));
|
|
break;
|
|
default:
|
|
SSB_WARN_ON(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Set the resource masks. */
|
|
if (min_msk)
|
|
chipco_write32(cc, SSB_CHIPCO_PMU_MINRES_MSK, min_msk);
|
|
if (max_msk)
|
|
chipco_write32(cc, SSB_CHIPCO_PMU_MAXRES_MSK, max_msk);
|
|
}
|
|
|
|
void ssb_pmu_init(struct ssb_chipcommon *cc)
|
|
{
|
|
struct ssb_bus *bus = cc->dev->bus;
|
|
u32 pmucap;
|
|
|
|
if (!(cc->capabilities & SSB_CHIPCO_CAP_PMU))
|
|
return;
|
|
|
|
pmucap = chipco_read32(cc, SSB_CHIPCO_PMU_CAP);
|
|
cc->pmu.rev = (pmucap & SSB_CHIPCO_PMU_CAP_REVISION);
|
|
|
|
ssb_dprintk(KERN_DEBUG PFX "Found rev %u PMU (capabilities 0x%08X)\n",
|
|
cc->pmu.rev, pmucap);
|
|
|
|
if (cc->pmu.rev >= 1) {
|
|
if ((bus->chip_id == 0x4325) && (bus->chip_rev < 2)) {
|
|
chipco_mask32(cc, SSB_CHIPCO_PMU_CTL,
|
|
~SSB_CHIPCO_PMU_CTL_NOILPONW);
|
|
} else {
|
|
chipco_set32(cc, SSB_CHIPCO_PMU_CTL,
|
|
SSB_CHIPCO_PMU_CTL_NOILPONW);
|
|
}
|
|
}
|
|
ssb_pmu_pll_init(cc);
|
|
ssb_pmu_resources_init(cc);
|
|
}
|
|
|
|
void ssb_pmu_set_ldo_voltage(struct ssb_chipcommon *cc,
|
|
enum ssb_pmu_ldo_volt_id id, u32 voltage)
|
|
{
|
|
struct ssb_bus *bus = cc->dev->bus;
|
|
u32 addr, shift, mask;
|
|
|
|
switch (bus->chip_id) {
|
|
case 0x4328:
|
|
case 0x5354:
|
|
switch (id) {
|
|
case LDO_VOLT1:
|
|
addr = 2;
|
|
shift = 25;
|
|
mask = 0xF;
|
|
break;
|
|
case LDO_VOLT2:
|
|
addr = 3;
|
|
shift = 1;
|
|
mask = 0xF;
|
|
break;
|
|
case LDO_VOLT3:
|
|
addr = 3;
|
|
shift = 9;
|
|
mask = 0xF;
|
|
break;
|
|
case LDO_PAREF:
|
|
addr = 3;
|
|
shift = 17;
|
|
mask = 0x3F;
|
|
break;
|
|
default:
|
|
SSB_WARN_ON(1);
|
|
return;
|
|
}
|
|
break;
|
|
case 0x4312:
|
|
if (SSB_WARN_ON(id != LDO_PAREF))
|
|
return;
|
|
addr = 0;
|
|
shift = 21;
|
|
mask = 0x3F;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
ssb_chipco_regctl_maskset(cc, addr, ~(mask << shift),
|
|
(voltage & mask) << shift);
|
|
}
|
|
|
|
void ssb_pmu_set_ldo_paref(struct ssb_chipcommon *cc, bool on)
|
|
{
|
|
struct ssb_bus *bus = cc->dev->bus;
|
|
int ldo;
|
|
|
|
switch (bus->chip_id) {
|
|
case 0x4312:
|
|
ldo = SSB_PMURES_4312_PA_REF_LDO;
|
|
break;
|
|
case 0x4328:
|
|
ldo = SSB_PMURES_4328_PA_REF_LDO;
|
|
break;
|
|
case 0x5354:
|
|
ldo = SSB_PMURES_5354_PA_REF_LDO;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
if (on)
|
|
chipco_set32(cc, SSB_CHIPCO_PMU_MINRES_MSK, 1 << ldo);
|
|
else
|
|
chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK, ~(1 << ldo));
|
|
chipco_read32(cc, SSB_CHIPCO_PMU_MINRES_MSK); //SPEC FIXME found via mmiotrace - dummy read?
|
|
}
|
|
|
|
EXPORT_SYMBOL(ssb_pmu_set_ldo_voltage);
|
|
EXPORT_SYMBOL(ssb_pmu_set_ldo_paref);
|