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@@ -1,476 +0,0 @@
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-/*
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- * Copyright (c) 2010 Broadcom Corporation
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- *
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- * Permission to use, copy, modify, and/or distribute this software for any
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- * purpose with or without fee is hereby granted, provided that the above
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- * copyright notice and this permission notice appear in all copies.
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- *
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- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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- */
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-
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-#include <linux/types.h>
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-#include <bcmdefs.h>
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-#ifdef BRCM_FULLMAC
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-#include <linux/netdevice.h>
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-#endif
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-#include <bcmutils.h>
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-#include <siutils.h>
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-#include <bcmdevs.h>
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-#include <hndsoc.h>
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-#include <sbchipc.h>
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-#include <pci_core.h>
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-#include <pcicfg.h>
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-#include <sbpcmcia.h>
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-#include "siutils_priv.h"
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-
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-/* local prototypes */
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-static uint _sb_coreidx(si_info_t *sii, u32 sba);
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-static uint _sb_scan(si_info_t *sii, u32 sba, void *regs, uint bus,
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- u32 sbba, uint ncores);
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-static u32 _sb_coresba(si_info_t *sii);
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-static void *_sb_setcoreidx(si_info_t *sii, uint coreidx);
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-
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-#define SET_SBREG(sii, r, mask, val) \
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- W_SBREG((sii), (r), ((R_SBREG((sii), (r)) & ~(mask)) | (val)))
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-#define REGS2SB(va) (sbconfig_t *) ((s8 *)(va) + SBCONFIGOFF)
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-
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-/* sonicsrev */
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-#define SONICS_2_2 (SBIDL_RV_2_2 >> SBIDL_RV_SHIFT)
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-#define SONICS_2_3 (SBIDL_RV_2_3 >> SBIDL_RV_SHIFT)
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-
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-#define R_SBREG(sii, sbr) sb_read_sbreg((sii), (sbr))
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-#define W_SBREG(sii, sbr, v) sb_write_sbreg((sii), (sbr), (v))
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-#define AND_SBREG(sii, sbr, v) \
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- W_SBREG((sii), (sbr), (R_SBREG((sii), (sbr)) & (v)))
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-#define OR_SBREG(sii, sbr, v) \
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- W_SBREG((sii), (sbr), (R_SBREG((sii), (sbr)) | (v)))
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-
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-static u32 sb_read_sbreg(si_info_t *sii, volatile u32 *sbr)
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-{
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- return R_REG(sbr);
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-}
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-
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-static void sb_write_sbreg(si_info_t *sii, volatile u32 *sbr, u32 v)
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-{
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- W_REG(sbr, v);
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-}
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-
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-uint sb_coreid(si_t *sih)
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-{
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- si_info_t *sii;
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- sbconfig_t *sb;
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-
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- sii = SI_INFO(sih);
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- sb = REGS2SB(sii->curmap);
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-
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- return (R_SBREG(sii, &sb->sbidhigh) & SBIDH_CC_MASK) >>
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- SBIDH_CC_SHIFT;
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-}
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-
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-/* return core index of the core with address 'sba' */
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-static uint _sb_coreidx(si_info_t *sii, u32 sba)
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-{
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- uint i;
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-
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- for (i = 0; i < sii->numcores; i++)
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- if (sba == sii->coresba[i])
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- return i;
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- return BADIDX;
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-}
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-
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-/* return core address of the current core */
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-static u32 _sb_coresba(si_info_t *sii)
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-{
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- u32 sbaddr = 0;
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-
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- switch (sii->pub.bustype) {
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- case SPI_BUS:
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- case SDIO_BUS:
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- sbaddr = (u32)(unsigned long)sii->curmap;
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- break;
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- default:
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- ASSERT(0);
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- break;
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- }
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-
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- return sbaddr;
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-}
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-
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-uint sb_corerev(si_t *sih)
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-{
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- si_info_t *sii;
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- sbconfig_t *sb;
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- uint sbidh;
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-
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- sii = SI_INFO(sih);
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- sb = REGS2SB(sii->curmap);
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- sbidh = R_SBREG(sii, &sb->sbidhigh);
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-
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- return SBCOREREV(sbidh);
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-}
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-
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-bool sb_iscoreup(si_t *sih)
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-{
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- si_info_t *sii;
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- sbconfig_t *sb;
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-
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- sii = SI_INFO(sih);
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- sb = REGS2SB(sii->curmap);
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-
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- return (R_SBREG(sii, &sb->sbtmstatelow) &
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- (SBTML_RESET | SBTML_REJ_MASK |
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- (SICF_CLOCK_EN << SBTML_SICF_SHIFT))) ==
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- (SICF_CLOCK_EN << SBTML_SICF_SHIFT);
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-}
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-
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-/*
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- * Switch to 'coreidx', issue a single arbitrary 32bit
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- * register mask&set operation,
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- * switch back to the original core, and return the new value.
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- *
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- * When using the silicon backplane, no fidleing with interrupts
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- * or core switches are needed.
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- *
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- * Also, when using pci/pcie, we can optimize away the core switching
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- * for pci registers
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- * and (on newer pci cores) chipcommon registers.
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- */
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-uint sb_corereg(si_t *sih, uint coreidx, uint regoff, uint mask, uint val)
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-{
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- uint origidx = 0;
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- u32 *r = NULL;
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- uint w;
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- uint intr_val = 0;
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- bool fast = false;
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- si_info_t *sii;
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-
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- sii = SI_INFO(sih);
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-
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- ASSERT(GOODIDX(coreidx));
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- ASSERT(regoff < SI_CORE_SIZE);
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- ASSERT((val & ~mask) == 0);
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-
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- if (coreidx >= SI_MAXCORES)
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- return 0;
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-
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- if (!fast) {
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- INTR_OFF(sii, intr_val);
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-
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- /* save current core index */
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- origidx = si_coreidx(&sii->pub);
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-
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- /* switch core */
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- r = (u32 *) ((unsigned char *) sb_setcoreidx(&sii->pub, coreidx) +
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- regoff);
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- }
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- ASSERT(r != NULL);
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-
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- /* mask and set */
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- if (mask || val) {
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- if (regoff >= SBCONFIGOFF) {
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- w = (R_SBREG(sii, r) & ~mask) | val;
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- W_SBREG(sii, r, w);
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- } else {
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- w = (R_REG(r) & ~mask) | val;
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- W_REG(r, w);
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- }
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- }
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-
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- /* readback */
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- if (regoff >= SBCONFIGOFF)
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- w = R_SBREG(sii, r);
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- else
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- w = R_REG(r);
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-
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- if (!fast) {
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- /* restore core index */
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- if (origidx != coreidx)
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- sb_setcoreidx(&sii->pub, origidx);
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-
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- INTR_RESTORE(sii, intr_val);
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- }
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-
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- return w;
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-}
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-
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-/* Scan the enumeration space to find all cores starting from the given
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- * bus 'sbba'. Append coreid and other info to the lists in 'si'. 'sba'
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- * is the default core address at chip POR time and 'regs' is the virtual
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- * address that the default core is mapped at. 'ncores' is the number of
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- * cores expected on bus 'sbba'. It returns the total number of cores
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- * starting from bus 'sbba', inclusive.
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- */
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-#define SB_MAXBUSES 2
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-static uint _sb_scan(si_info_t *sii, u32 sba, void *regs, uint bus, u32 sbba,
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- uint numcores)
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-{
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- uint next;
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- uint ncc = 0;
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- uint i;
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-
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- if (bus >= SB_MAXBUSES) {
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- SI_ERROR(("_sb_scan: bus 0x%08x at level %d is too deep to "
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- "scan\n", sbba, bus));
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- return 0;
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- }
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- SI_MSG(("_sb_scan: scan bus 0x%08x assume %u cores\n",
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- sbba, numcores));
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-
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- /* Scan all cores on the bus starting from core 0.
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- * Core addresses must be contiguous on each bus.
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- */
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- for (i = 0, next = sii->numcores;
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- i < numcores && next < SB_BUS_MAXCORES; i++, next++) {
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- sii->coresba[next] = sbba + (i * SI_CORE_SIZE);
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-
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- /* change core to 'next' and read its coreid */
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- sii->curmap = _sb_setcoreidx(sii, next);
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- sii->curidx = next;
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-
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- sii->coreid[next] = sb_coreid(&sii->pub);
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-
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- /* core specific processing... */
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- /* chipc provides # cores */
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- if (sii->coreid[next] == CC_CORE_ID) {
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- chipcregs_t *cc = (chipcregs_t *) sii->curmap;
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- u32 ccrev = sb_corerev(&sii->pub);
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-
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- /* determine numcores - this is the
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- total # cores in the chip */
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- if (((ccrev == 4) || (ccrev >= 6)))
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- numcores =
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- (R_REG(&cc->chipid) & CID_CC_MASK)
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- >> CID_CC_SHIFT;
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- else {
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- /* Older chips */
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- SI_ERROR(("sb_chip2numcores: unsupported chip "
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- "0x%x\n", sii->pub.chip));
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- ASSERT(0);
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- numcores = 1;
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- }
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-
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- SI_VMSG(("_sb_scan: %u cores in the chip %s\n",
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- numcores, sii->pub.issim ? "QT" : ""));
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- }
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- /* scan bridged SB(s) and add results to the end of the list */
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- else if (sii->coreid[next] == OCP_CORE_ID) {
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- sbconfig_t *sb = REGS2SB(sii->curmap);
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- u32 nsbba = R_SBREG(sii, &sb->sbadmatch1);
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- uint nsbcc;
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-
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- sii->numcores = next + 1;
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-
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- if ((nsbba & 0xfff00000) != SI_ENUM_BASE)
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- continue;
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- nsbba &= 0xfffff000;
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- if (_sb_coreidx(sii, nsbba) != BADIDX)
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- continue;
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-
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- nsbcc =
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- (R_SBREG(sii, &sb->sbtmstatehigh) & 0x000f0000) >>
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- 16;
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- nsbcc = _sb_scan(sii, sba, regs, bus + 1, nsbba, nsbcc);
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- if (sbba == SI_ENUM_BASE)
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- numcores -= nsbcc;
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- ncc += nsbcc;
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- }
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- }
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-
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- SI_MSG(("_sb_scan: found %u cores on bus 0x%08x\n", i, sbba));
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-
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- sii->numcores = i + ncc;
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- return sii->numcores;
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-}
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-
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-/* scan the sb enumerated space to identify all cores */
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-void sb_scan(si_t *sih, void *regs, uint devid)
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-{
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- si_info_t *sii;
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- u32 origsba;
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- sbconfig_t *sb;
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-
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- sii = SI_INFO(sih);
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- sb = REGS2SB(sii->curmap);
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-
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- sii->pub.socirev =
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- (R_SBREG(sii, &sb->sbidlow) & SBIDL_RV_MASK) >> SBIDL_RV_SHIFT;
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-
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- /* Save the current core info and validate it later till we know
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- * for sure what is good and what is bad.
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- */
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- origsba = _sb_coresba(sii);
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-
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- /* scan all SB(s) starting from SI_ENUM_BASE */
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- sii->numcores = _sb_scan(sii, origsba, regs, 0, SI_ENUM_BASE, 1);
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-}
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-
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-/*
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- * This function changes logical "focus" to the indicated core;
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- * must be called with interrupts off.
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- * Moreover, callers should keep interrupts off during switching out of
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- * and back to d11 core
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- */
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-void *sb_setcoreidx(si_t *sih, uint coreidx)
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-{
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- si_info_t *sii;
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-
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- sii = SI_INFO(sih);
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-
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- if (coreidx >= sii->numcores)
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- return NULL;
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-
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- /*
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- * If the user has provided an interrupt mask enabled function,
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- * then assert interrupts are disabled before switching the core.
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- */
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- ASSERT((sii->intrsenabled_fn == NULL)
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- || !(*(sii)->intrsenabled_fn) ((sii)->intr_arg));
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-
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- sii->curmap = _sb_setcoreidx(sii, coreidx);
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- sii->curidx = coreidx;
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-
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- return sii->curmap;
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-}
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-
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-/* This function changes the logical "focus" to the indicated core.
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- * Return the current core's virtual address.
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- */
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-static void *_sb_setcoreidx(si_info_t *sii, uint coreidx)
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-{
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- u32 sbaddr = sii->coresba[coreidx];
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- void *regs;
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-
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- switch (sii->pub.bustype) {
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-#ifdef BCMSDIO
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- case SPI_BUS:
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- case SDIO_BUS:
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- /* map new one */
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- if (!sii->regs[coreidx]) {
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- sii->regs[coreidx] = (void *)sbaddr;
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- ASSERT(GOODREGS(sii->regs[coreidx]));
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- }
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- regs = sii->regs[coreidx];
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- break;
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-#endif /* BCMSDIO */
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- default:
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- ASSERT(0);
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- regs = NULL;
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- break;
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- }
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-
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- return regs;
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-}
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-
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-void sb_core_disable(si_t *sih, u32 bits)
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-{
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- si_info_t *sii;
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- volatile u32 dummy;
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- sbconfig_t *sb;
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-
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- sii = SI_INFO(sih);
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-
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- ASSERT(GOODREGS(sii->curmap));
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- sb = REGS2SB(sii->curmap);
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-
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- /* if core is already in reset, just return */
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- if (R_SBREG(sii, &sb->sbtmstatelow) & SBTML_RESET)
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- return;
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-
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- /* if clocks are not enabled, put into reset and return */
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- if ((R_SBREG(sii, &sb->sbtmstatelow) &
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- (SICF_CLOCK_EN << SBTML_SICF_SHIFT)) == 0)
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- goto disable;
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-
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- /* set target reject and spin until busy is clear
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- (preserve core-specific bits) */
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- OR_SBREG(sii, &sb->sbtmstatelow, SBTML_REJ);
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- dummy = R_SBREG(sii, &sb->sbtmstatelow);
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- udelay(1);
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- SPINWAIT((R_SBREG(sii, &sb->sbtmstatehigh) & SBTMH_BUSY), 100000);
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- if (R_SBREG(sii, &sb->sbtmstatehigh) & SBTMH_BUSY)
|
|
|
- SI_ERROR(("%s: target state still busy\n", __func__));
|
|
|
-
|
|
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- if (R_SBREG(sii, &sb->sbidlow) & SBIDL_INIT) {
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|
|
- OR_SBREG(sii, &sb->sbimstate, SBIM_RJ);
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|
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- dummy = R_SBREG(sii, &sb->sbimstate);
|
|
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- udelay(1);
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|
|
- SPINWAIT((R_SBREG(sii, &sb->sbimstate) & SBIM_BY), 100000);
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|
|
- }
|
|
|
-
|
|
|
- /* set reset and reject while enabling the clocks */
|
|
|
- W_SBREG(sii, &sb->sbtmstatelow,
|
|
|
- (((bits | SICF_FGC | SICF_CLOCK_EN) << SBTML_SICF_SHIFT) |
|
|
|
- SBTML_REJ | SBTML_RESET));
|
|
|
- dummy = R_SBREG(sii, &sb->sbtmstatelow);
|
|
|
- udelay(10);
|
|
|
-
|
|
|
- /* don't forget to clear the initiator reject bit */
|
|
|
- if (R_SBREG(sii, &sb->sbidlow) & SBIDL_INIT)
|
|
|
- AND_SBREG(sii, &sb->sbimstate, ~SBIM_RJ);
|
|
|
-
|
|
|
-disable:
|
|
|
- /* leave reset and reject asserted */
|
|
|
- W_SBREG(sii, &sb->sbtmstatelow,
|
|
|
- ((bits << SBTML_SICF_SHIFT) | SBTML_REJ | SBTML_RESET));
|
|
|
- udelay(1);
|
|
|
-}
|
|
|
-
|
|
|
-/* reset and re-enable a core
|
|
|
- * inputs:
|
|
|
- * bits - core specific bits that are set during and after reset sequence
|
|
|
- * resetbits - core specific bits that are set only during reset sequence
|
|
|
- */
|
|
|
-void sb_core_reset(si_t *sih, u32 bits, u32 resetbits)
|
|
|
-{
|
|
|
- si_info_t *sii;
|
|
|
- sbconfig_t *sb;
|
|
|
- volatile u32 dummy;
|
|
|
-
|
|
|
- sii = SI_INFO(sih);
|
|
|
- ASSERT(GOODREGS(sii->curmap));
|
|
|
- sb = REGS2SB(sii->curmap);
|
|
|
-
|
|
|
- /*
|
|
|
- * Must do the disable sequence first to work for
|
|
|
- * arbitrary current core state.
|
|
|
- */
|
|
|
- sb_core_disable(sih, (bits | resetbits));
|
|
|
-
|
|
|
- /*
|
|
|
- * Now do the initialization sequence.
|
|
|
- */
|
|
|
-
|
|
|
- /* set reset while enabling the clock and
|
|
|
- forcing them on throughout the core */
|
|
|
- W_SBREG(sii, &sb->sbtmstatelow,
|
|
|
- (((bits | resetbits | SICF_FGC | SICF_CLOCK_EN) <<
|
|
|
- SBTML_SICF_SHIFT) | SBTML_RESET));
|
|
|
- dummy = R_SBREG(sii, &sb->sbtmstatelow);
|
|
|
- udelay(1);
|
|
|
-
|
|
|
- if (R_SBREG(sii, &sb->sbtmstatehigh) & SBTMH_SERR)
|
|
|
- W_SBREG(sii, &sb->sbtmstatehigh, 0);
|
|
|
-
|
|
|
- dummy = R_SBREG(sii, &sb->sbimstate);
|
|
|
- if (dummy & (SBIM_IBE | SBIM_TO))
|
|
|
- AND_SBREG(sii, &sb->sbimstate, ~(SBIM_IBE | SBIM_TO));
|
|
|
-
|
|
|
- /* clear reset and allow it to propagate throughout the core */
|
|
|
- W_SBREG(sii, &sb->sbtmstatelow,
|
|
|
- ((bits | resetbits | SICF_FGC | SICF_CLOCK_EN) <<
|
|
|
- SBTML_SICF_SHIFT));
|
|
|
- dummy = R_SBREG(sii, &sb->sbtmstatelow);
|
|
|
- udelay(1);
|
|
|
-
|
|
|
- /* leave clock enabled */
|
|
|
- W_SBREG(sii, &sb->sbtmstatelow,
|
|
|
- ((bits | SICF_CLOCK_EN) << SBTML_SICF_SHIFT));
|
|
|
- dummy = R_SBREG(sii, &sb->sbtmstatelow);
|
|
|
- udelay(1);
|
|
|
-}
|