diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/beatnik/marvell/gt.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/beatnik/marvell/gt.c | 1010 |
1 files changed, 0 insertions, 1010 deletions
diff --git a/c/src/lib/libbsp/powerpc/beatnik/marvell/gt.c b/c/src/lib/libbsp/powerpc/beatnik/marvell/gt.c deleted file mode 100644 index c71b7cbdb3..0000000000 --- a/c/src/lib/libbsp/powerpc/beatnik/marvell/gt.c +++ /dev/null @@ -1,1010 +0,0 @@ -/* $NetBSD: gt.c,v 1.5 2003/07/14 15:47:16 lukem Exp $ */ - -/* - * Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed for the NetBSD Project by - * Allegro Networks, Inc., and Wasabi Systems, Inc. - * 4. The name of Allegro Networks, Inc. may not be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * 5. The name of Wasabi Systems, Inc. may not be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND - * WASABI SYSTEMS, INC. ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC. - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * gt.c -- GT system controller driver - */ - -#include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: gt.c,v 1.5 2003/07/14 15:47:16 lukem Exp $"); - -#include "opt_marvell.h" - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/cdefs.h> -#include <sys/extent.h> -#include <sys/device.h> -#include <sys/kernel.h> -#include <sys/malloc.h> - -#define _BUS_SPACE_PRIVATE -#define _BUS_DMA_PRIVATE -#include <machine/bus.h> - -#include <powerpc/spr.h> -#include <powerpc/oea/hid.h> - -#include <dev/marvell/gtreg.h> -#include <dev/marvell/gtintrreg.h> -#include <dev/marvell/gtvar.h> -#include <dev/marvell/gtethreg.h> - -#ifdef DEBUG -#include <sys/systm.h> /* for Debugger() */ -#endif - -#if ((GT_MPP_WATCHDOG & 0xf0f0f0f0) != 0) -# error /* unqualified: configuration botch! */ -#endif -#if ((GT_MPP_WATCHDOG & GT_MPP_INTERRUPTS) != 0) -# error /* conflict: configuration botch! */ -#endif - -static void gt_comm_intr_enb(struct gt_softc *); -static void gt_devbus_intr_enb(struct gt_softc *); -#ifdef GT_ECC -static void gt_ecc_intr_enb(struct gt_softc *); -#endif - -void gt_init_hostid (struct gt_softc *); -void gt_init_interrupt (struct gt_softc *); -static int gt_comm_intr (void *); - -void gt_watchdog_init(struct gt_softc *); -void gt_watchdog_enable(void); -void gt_watchdog_disable(void); -void gt_watchdog_reset(void); - -extern struct cfdriver gt_cd; - -static int gtfound = 0; - -static struct gt_softc *gt_watchdog_sc = 0; -static int gt_watchdog_state = 0; - -int -gt_cfprint (void *aux, const char *pnp) -{ - struct gt_attach_args *ga = aux; - - if (pnp) { - aprint_normal("%s at %s", ga->ga_name, pnp); - } - - aprint_normal(" unit %d", ga->ga_unit); - return (UNCONF); -} - - -static int -gt_cfsearch(struct device *parent, struct cfdata *cf, void *aux) -{ - struct gt_softc *gt = (struct gt_softc *) parent; - struct gt_attach_args ga; - - ga.ga_name = cf->cf_name; - ga.ga_dmat = gt->gt_dmat; - ga.ga_memt = gt->gt_memt; - ga.ga_memh = gt->gt_memh; - ga.ga_unit = cf->cf_loc[GTCF_UNIT]; - - if (config_match(parent, cf, &ga) > 0) - config_attach(parent, cf, &ga, gt_cfprint); - - return (0); -} - -void -gt_attach_common(struct gt_softc *gt) -{ - uint32_t cpucfg, cpumode, cpumstr; -#ifdef DEBUG - uint32_t loaddr, hiaddr; -#endif - - gtfound = 1; - - cpumode = gt_read(gt, GT_CPU_Mode); - aprint_normal(": id %d", GT_CPUMode_MultiGTID_GET(cpumode)); - if (cpumode & GT_CPUMode_MultiGT) - aprint_normal (" (multi)"); - switch (GT_CPUMode_CPUType_GET(cpumode)) { - case 4: aprint_normal(", 60x bus"); break; - case 5: aprint_normal(", MPX bus"); break; - default: aprint_normal(", %#x(?) bus", GT_CPUMode_CPUType_GET(cpumode)); break; - } - - cpumstr = gt_read(gt, GT_CPU_Master_Ctl); - cpumstr &= ~(GT_CPUMstrCtl_CleanBlock|GT_CPUMstrCtl_FlushBlock); -#if 0 - cpumstr |= GT_CPUMstrCtl_CleanBlock|GT_CPUMstrCtl_FlushBlock; -#endif - gt_write(gt, GT_CPU_Master_Ctl, cpumstr); - - switch (cpumstr & (GT_CPUMstrCtl_CleanBlock|GT_CPUMstrCtl_FlushBlock)) { - case 0: break; - case GT_CPUMstrCtl_CleanBlock: aprint_normal(", snoop=clean"); break; - case GT_CPUMstrCtl_FlushBlock: aprint_normal(", snoop=flush"); break; - case GT_CPUMstrCtl_CleanBlock|GT_CPUMstrCtl_FlushBlock: - aprint_normal(", snoop=clean&flush"); break; - } - aprint_normal(" wdog=%#x,%#x\n", - gt_read(gt, GT_WDOG_Config), - gt_read(gt, GT_WDOG_Value)); - -#if DEBUG - loaddr = GT_LowAddr_GET(gt_read(gt, GT_SCS0_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_SCS0_High_Decode)); - aprint_normal("%s: scs[0]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_SCS1_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_SCS1_High_Decode)); - aprint_normal("%s: scs[1]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_SCS2_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_SCS2_High_Decode)); - aprint_normal("%s: scs[2]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_SCS3_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_SCS3_High_Decode)); - aprint_normal("%s: scs[3]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_CS0_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_CS0_High_Decode)); - aprint_normal("%s: cs[0]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_CS1_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_CS1_High_Decode)); - aprint_normal("%s: cs[1]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_CS2_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_CS2_High_Decode)); - aprint_normal("%s: cs[2]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_CS3_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_CS3_High_Decode)); - aprint_normal("%s: cs[3]=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_BootCS_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_BootCS_High_Decode)); - aprint_normal("%s: bootcs=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI0_IO_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI0_IO_High_Decode)); - aprint_normal("%s: pci0io=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI0_IO_Remap); - aprint_normal("remap=%#010x\n", loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI0_Mem0_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI0_Mem0_High_Decode)); - aprint_normal("%s: pci0mem[0]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI0_Mem0_Remap_Low); - hiaddr = gt_read(gt, GT_PCI0_Mem0_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI0_Mem1_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI0_Mem1_High_Decode)); - aprint_normal("%s: pci0mem[1]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI0_Mem1_Remap_Low); - hiaddr = gt_read(gt, GT_PCI0_Mem1_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI0_Mem2_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI0_Mem2_High_Decode)); - aprint_normal("%s: pci0mem[2]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI0_Mem2_Remap_Low); - hiaddr = gt_read(gt, GT_PCI0_Mem2_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI0_Mem3_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI0_Mem3_High_Decode)); - aprint_normal("%s: pci0mem[3]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI0_Mem3_Remap_Low); - hiaddr = gt_read(gt, GT_PCI0_Mem3_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI1_IO_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI1_IO_High_Decode)); - aprint_normal("%s: pci1io=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI1_IO_Remap); - aprint_normal("remap=%#010x\n", loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI1_Mem0_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI1_Mem0_High_Decode)); - aprint_normal("%s: pci1mem[0]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI1_Mem0_Remap_Low); - hiaddr = gt_read(gt, GT_PCI1_Mem0_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI1_Mem1_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI1_Mem1_High_Decode)); - aprint_normal("%s: pci1mem[1]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI1_Mem1_Remap_Low); - hiaddr = gt_read(gt, GT_PCI1_Mem1_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI1_Mem2_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI1_Mem2_High_Decode)); - aprint_normal("%s: pci1mem[2]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI1_Mem2_Remap_Low); - hiaddr = gt_read(gt, GT_PCI1_Mem2_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_PCI1_Mem3_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_PCI1_Mem3_High_Decode)); - aprint_normal("%s: pci1mem[3]=%#10x-%#10x ", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = gt_read(gt, GT_PCI1_Mem3_Remap_Low); - hiaddr = gt_read(gt, GT_PCI1_Mem3_Remap_High); - aprint_normal("remap=%#010x.%#010x\n", hiaddr, loaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_Internal_Decode)); - aprint_normal("%s: internal=%#10x-%#10x\n", gt->gt_dev.dv_xname, - loaddr, loaddr+256*1024); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_CPU0_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_CPU0_High_Decode)); - aprint_normal("%s: cpu0=%#10x-%#10x\n", gt->gt_dev.dv_xname, loaddr, hiaddr); - - loaddr = GT_LowAddr_GET(gt_read(gt, GT_CPU1_Low_Decode)); - hiaddr = GT_HighAddr_GET(gt_read(gt, GT_CPU1_High_Decode)); - aprint_normal("%s: cpu1=%#10x-%#10x", gt->gt_dev.dv_xname, loaddr, hiaddr); -#endif - - aprint_normal("%s:", gt->gt_dev.dv_xname); - - cpucfg = gt_read(gt, GT_CPU_Cfg); - cpucfg |= GT_CPUCfg_ConfSBDis; /* per errata #46 */ - cpucfg |= GT_CPUCfg_AACKDelay; /* per restriction #18 */ - gt_write(gt, GT_CPU_Cfg, cpucfg); - if (cpucfg & GT_CPUCfg_Pipeline) - aprint_normal(" pipeline"); - if (cpucfg & GT_CPUCfg_AACKDelay) - aprint_normal(" aack-delay"); - if (cpucfg & GT_CPUCfg_RdOOO) - aprint_normal(" read-ooo"); - if (cpucfg & GT_CPUCfg_IOSBDis) - aprint_normal(" io-sb-dis"); - if (cpucfg & GT_CPUCfg_ConfSBDis) - aprint_normal(" conf-sb-dis"); - if (cpucfg & GT_CPUCfg_ClkSync) - aprint_normal(" clk-sync"); - aprint_normal("\n"); - - gt_init_hostid(gt); - - gt_watchdog_init(gt); - - gt_init_interrupt(gt); - -#ifdef GT_ECC - gt_ecc_intr_enb(gt); -#endif - - gt_comm_intr_enb(gt); - gt_devbus_intr_enb(gt); - - gt_watchdog_disable(); - config_search(gt_cfsearch, >->gt_dev, NULL); - gt_watchdog_service(); - gt_watchdog_enable(); -} - -void -gt_init_hostid(struct gt_softc *gt) -{ - - hostid = 1; /* XXX: Used by i2c; needs work -- AKB */ -} - -void -gt_init_interrupt(struct gt_softc *gt) -{ - u_int32_t mppirpts = GT_MPP_INTERRUPTS; /* from config */ - u_int32_t r; - u_int32_t mppbit; - u_int32_t mask; - u_int32_t mppsel; - u_int32_t regoff; - - gt_write(gt, ICR_CIM_LO, 0); - gt_write(gt, ICR_CIM_HI, 0); - - /* - * configure the GPP interrupts: - * - set the configured MPP pins in GPP mode - * - set the configured GPP pins to input, active low, interrupt enbl - */ -#ifdef DEBUG - printf("%s: mpp cfg ", gt->gt_dev.dv_xname); - for (regoff = GT_MPP_Control0; regoff <= GT_MPP_Control3; regoff += 4) - printf("%#x ", gt_read(gt, regoff)); - printf(", mppirpts 0x%x\n", mppirpts); -#endif - mppbit = 0x1; - for (regoff = GT_MPP_Control0; regoff <= GT_MPP_Control3; regoff += 4) { - mask = 0; - for (mppsel = 0xf; mppsel; mppsel <<= 4) { - if (mppirpts & mppbit) - mask |= mppsel; - mppbit <<= 1; - } - if (mask) { - r = gt_read(gt, regoff); - r &= ~mask; - gt_write(gt, regoff, r); - } - } - - r = gt_read(gt, GT_GPP_IO_Control); - r &= ~mppirpts; - gt_write(gt, GT_GPP_IO_Control, r); - - r = gt_read(gt, GT_GPP_Level_Control); - r |= mppirpts; - gt_write(gt, GT_GPP_Level_Control, r); - - r = gt_read(gt, GT_GPP_Interrupt_Mask); - r |= mppirpts; - gt_write(gt, GT_GPP_Interrupt_Mask, r); -} - -uint32_t -gt_read_mpp (void) -{ - return gt_read((struct gt_softc *)gt_cd.cd_devs[0], GT_GPP_Value); -} - -#if 0 -int -gt_bs_extent_init(struct discovery_bus_space *bs, char *name) -{ - u_long start, end; - int i, j, error; - - if (bs->bs_nregion == 0) { - bs->bs_extent = extent_create(name, 0xffffffffUL, 0xffffffffUL, - M_DEVBUF, NULL, 0, EX_NOCOALESCE|EX_WAITOK); - KASSERT(bs->bs_extent != NULL); - return 0; - } - /* - * Find the top and bottoms of this bus space. - */ - start = bs->bs_regions[0].br_start; - end = bs->bs_regions[0].br_end; -#ifdef DEBUG - if (gtpci_debug > 1) - printf("gtpci_bs_extent_init: %s: region %d: %#lx-%#lx\n", - name, 0, bs->bs_regions[0].br_start, - bs->bs_regions[0].br_end); -#endif - for (i = 1; i < bs->bs_nregion; i++) { - if (bs->bs_regions[i].br_start < start) - start = bs->bs_regions[i].br_start; - if (bs->bs_regions[i].br_end > end) - end = bs->bs_regions[i].br_end; -#ifdef DEBUG - if (gtpci_debug > 1) - printf("gtpci_bs_extent_init: %s: region %d:" - " %#lx-%#lx\n", - name, i, bs->bs_regions[i].br_start, - bs->bs_regions[i].br_end); -#endif - } - /* - * Now that we have the top and bottom limits of this - * bus space, create the extent map that will manage this - * space for us. - */ -#ifdef DEBUG - if (gtpci_debug > 1) - printf("gtpci_bs_extent_init: %s: create: %#lx-%#lx\n", - name, start, end); -#endif - bs->bs_extent = extent_create(name, start, end, M_DEVBUF, - NULL, 0, EX_NOCOALESCE|EX_WAITOK); - KASSERT(bs->bs_extent != NULL); - - /* If there was more than one bus space region, then there - * might gaps in between them. Allocate the gap so that - * they will not be legal addresses in the extent. - */ - for (i = 0; i < bs->bs_nregion && bs->bs_nregion > 1; i++) { - /* Initial start is "infinity" and the inital end is - * is the end of this bus region. - */ - start = ~0UL; - end = bs->bs_regions[i].br_end; - /* For each region, if it starts after this region but less - * than the saved start, use its start address. If the start - * address is one past the end address, then we're done - */ - for (j = 0; j < bs->bs_nregion && start > end + 1; j++) { - if (i == j) - continue; - if (bs->bs_regions[j].br_start > end && - bs->bs_regions[j].br_start < start) - start = bs->bs_regions[j].br_start; - } - /* - * If we found a gap, allocate it away. - */ - if (start != ~0UL && start != end + 1) { -#ifdef DEBUG - if (gtpci_debug > 1) - printf("gtpci_bs_extent_init: %s: alloc(hole): %#lx-%#lx\n", - name, end + 1, start - 1); -#endif - error = extent_alloc_region(bs->bs_extent, end + 1, - start - (end + 1), EX_NOWAIT); - KASSERT(error == 0); - } - } - return 1; -} -#endif - -/* - * unknown board, enable everything - */ -# define GT_CommUnitIntr_DFLT GT_CommUnitIntr_S0|GT_CommUnitIntr_S1 \ - |GT_CommUnitIntr_E0|GT_CommUnitIntr_E1 \ - |GT_CommUnitIntr_E2 - -static const char * const gt_comm_subunit_name[8] = { - "ethernet 0", - "ethernet 1", - "ethernet 2", - "(reserved)", - "MPSC 0", - "MPSC 1", - "(reserved)", - "(sel)", -}; - -static int -gt_comm_intr(void *arg) -{ - struct gt_softc *gt = (struct gt_softc *)arg; - u_int32_t cause; - u_int32_t addr; - unsigned int mask; - int i; - - cause = gt_read(gt, GT_CommUnitIntr_Cause); - gt_write(gt, GT_CommUnitIntr_Cause, ~cause); - addr = gt_read(gt, GT_CommUnitIntr_ErrAddr); - - printf("%s: Comm Unit irpt, cause %#x addr %#x\n", - gt->gt_dev.dv_xname, cause, addr); - - cause &= GT_CommUnitIntr_DFLT; - if (cause == 0) - return 0; - - mask = 0x7; - for (i=0; i<7; i++) { - if (cause & mask) { - printf("%s: Comm Unit %s:", gt->gt_dev.dv_xname, - gt_comm_subunit_name[i]); - if (cause & 1) - printf(" AddrMiss"); - if (cause & 2) - printf(" AccProt"); - if (cause & 4) - printf(" WrProt"); - printf("\n"); - } - cause >>= 4; - } - return 1; -} - -/* - * gt_comm_intr_init - enable GT-64260 Comm Unit interrupts - */ -static void -gt_comm_intr_enb(struct gt_softc *gt) -{ - u_int32_t cause; - - cause = gt_read(gt, GT_CommUnitIntr_Cause); - if (cause) - gt_write(gt, GT_CommUnitIntr_Cause, ~cause); - gt_write(gt, GT_CommUnitIntr_Mask, GT_CommUnitIntr_DFLT); - (void)gt_read(gt, GT_CommUnitIntr_ErrAddr); - - intr_establish(IRQ_COMM, IST_LEVEL, IPL_GTERR, gt_comm_intr, gt); - printf("%s: Comm Unit irpt at %d\n", gt->gt_dev.dv_xname, IRQ_COMM); -} - -#ifdef GT_ECC -static char *gt_ecc_intr_str[4] = { - "(none)", - "single bit", - "double bit", - "(reserved)" -}; - -static int -gt_ecc_intr(void *arg) -{ - struct gt_softc *gt = (struct gt_softc *)arg; - u_int32_t addr; - u_int32_t dlo; - u_int32_t dhi; - u_int32_t rec; - u_int32_t calc; - u_int32_t count; - int err; - - count = gt_read(gt, GT_ECC_Count); - dlo = gt_read(gt, GT_ECC_Data_Lo); - dhi = gt_read(gt, GT_ECC_Data_Hi); - rec = gt_read(gt, GT_ECC_Rec); - calc = gt_read(gt, GT_ECC_Calc); - addr = gt_read(gt, GT_ECC_Addr); /* read last! */ - gt_write(gt, GT_ECC_Addr, 0); /* clear irpt */ - - err = addr & 0x3; - - printf("%s: ECC error: %s: " - "addr %#x data %#x.%#x rec %#x calc %#x cnt %#x\n", - gt->gt_dev.dv_xname, gt_ecc_intr_str[err], - addr, dhi, dlo, rec, calc, count); - - if (err == 2) - panic("ecc"); - - return (err == 1); -} - -/* - * gt_ecc_intr_enb - enable GT-64260 ECC interrupts - */ -static void -gt_ecc_intr_enb(struct gt_softc *gt) -{ - u_int32_t ctl; - - ctl = gt_read(gt, GT_ECC_Ctl); - ctl |= 1 << 16; /* XXX 1-bit threshold == 1 */ - gt_write(gt, GT_ECC_Ctl, ctl); - (void)gt_read(gt, GT_ECC_Data_Lo); - (void)gt_read(gt, GT_ECC_Data_Hi); - (void)gt_read(gt, GT_ECC_Rec); - (void)gt_read(gt, GT_ECC_Calc); - (void)gt_read(gt, GT_ECC_Addr); /* read last! */ - gt_write(gt, GT_ECC_Addr, 0); /* clear irpt */ - - intr_establish(IRQ_ECC, IST_LEVEL, IPL_GTERR, gt_ecc_intr, gt); - printf("%s: ECC irpt at %d\n", gt->gt_dev.dv_xname, IRQ_ECC); -} -#endif /* GT_ECC */ - - -#ifndef GT_MPP_WATCHDOG -void -gt_watchdog_init(struct gt_softc *gt) -{ - u_int32_t r; - unsigned int omsr; - - omsr = extintr_disable(); - - printf("%s: watchdog", gt->gt_dev.dv_xname); - - /* - * handle case where firmware started watchdog - */ - r = gt_read(gt, GT_WDOG_Config); - printf(" status %#x,%#x:", - r, gt_read(gt, GT_WDOG_Value)); - if ((r & 0x80000000) != 0) { - gt_watchdog_sc = gt; /* enabled */ - gt_watchdog_state = 1; - printf(" firmware-enabled\n"); - gt_watchdog_service(); - return; - } else { - printf(" firmware-disabled\n"); - } - - extintr_restore(omsr); -} - -#else /* GT_MPP_WATCHDOG */ - -void -gt_watchdog_init(struct gt_softc *gt) -{ - u_int32_t mpp_watchdog = GT_MPP_WATCHDOG; /* from config */ - u_int32_t r; - u_int32_t cfgbits; - u_int32_t mppbits; - u_int32_t mppmask=0; - u_int32_t regoff; - unsigned int omsr; - - printf("%s: watchdog", gt->gt_dev.dv_xname); - - if (mpp_watchdog == 0) { - printf(" not configured\n"); - return; - } - -#if 0 - if (afw_wdog_ctl == 1) { - printf(" admin disabled\n"); - return; - } -#endif - - omsr = extintr_disable(); - - /* - * if firmware started watchdog, we disable and start - * from scratch to get it in a known state. - * - * on GT-64260A we always see 0xffffffff - * in both the GT_WDOG_Config_Enb and GT_WDOG_Value regsiters. - * Use AFW-supplied flag to determine run state. - */ - r = gt_read(gt, GT_WDOG_Config); - if (r != ~0) { - if ((r & GT_WDOG_Config_Enb) != 0) { - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1a | GT_WDOG_Preset_DFLT)); - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1b | GT_WDOG_Preset_DFLT)); - } - } else { -#if 0 - if (afw_wdog_state == 1) { - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1a | GT_WDOG_Preset_DFLT)); - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1b | GT_WDOG_Preset_DFLT)); - } -#endif - } - - /* - * "the watchdog timer can be activated only after - * configuring two MPP pins to act as WDE and WDNMI" - */ - mppbits = 0; - cfgbits = 0x3; - for (regoff = GT_MPP_Control0; regoff <= GT_MPP_Control3; regoff += 4) { - if ((mpp_watchdog & cfgbits) == cfgbits) { - mppbits = 0x99; - mppmask = 0xff; - break; - } - cfgbits <<= 2; - if ((mpp_watchdog & cfgbits) == cfgbits) { - mppbits = 0x9900; - mppmask = 0xff00; - break; - } - cfgbits <<= 6; /* skip unqualified bits */ - } - if (mppbits == 0) { - printf(" config error\n"); - extintr_restore(omsr); - return; - } - - r = gt_read(gt, regoff); - r &= ~mppmask; - r |= mppbits; - gt_write(gt, regoff, r); - printf(" mpp %#x %#x", regoff, mppbits); - - gt_write(gt, GT_WDOG_Value, GT_WDOG_NMI_DFLT); - - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1a | GT_WDOG_Preset_DFLT)); - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1b | GT_WDOG_Preset_DFLT)); - - - r = gt_read(gt, GT_WDOG_Config), - printf(" status %#x,%#x: %s", - r, gt_read(gt, GT_WDOG_Value), - ((r & GT_WDOG_Config_Enb) != 0) ? "enabled" : "botch"); - - if ((r & GT_WDOG_Config_Enb) != 0) { - register_t hid0; - - gt_watchdog_sc = gt; /* enabled */ - gt_watchdog_state = 1; - - /* - * configure EMCP in HID0 in case it's not already set - */ - __asm __volatile("sync":::"memory"); - hid0 = mfspr(SPR_HID0); - if ((hid0 & HID0_EMCP) == 0) { - hid0 |= HID0_EMCP; - __asm __volatile("sync":::"memory"); mtspr(SPR_HID0, hid0); - __asm __volatile("sync":::"memory"); hid0 = mfspr(SPR_HID0); - printf(", EMCP set"); - } - } - printf("\n"); - - extintr_restore(omsr); -} -#endif /* GT_MPP_WATCHDOG */ - -#ifdef DEBUG -u_int32_t hid0_print(void); -u_int32_t -hid0_print() -{ - u_int32_t hid0; - __asm __volatile("sync; mfspr %0,1008;" : "=r"(hid0)::"memory"); - printf("hid0: %#x\n", hid0); - return hid0; -} -#endif - -void -gt_watchdog_enable(void) -{ - struct gt_softc *gt; - unsigned int omsr; - - omsr = extintr_disable(); - gt = gt_watchdog_sc; - if ((gt != NULL) && (gt_watchdog_state == 0)) { - gt_watchdog_state = 1; - - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1a | GT_WDOG_Preset_DFLT)); - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1b | GT_WDOG_Preset_DFLT)); - } - extintr_restore(omsr); -} - -void -gt_watchdog_disable(void) -{ - struct gt_softc *gt; - unsigned int omsr; - - omsr = extintr_disable(); - gt = gt_watchdog_sc; - if ((gt != NULL) && (gt_watchdog_state != 0)) { - gt_watchdog_state = 0; - - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1a | GT_WDOG_Preset_DFLT)); - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1b | GT_WDOG_Preset_DFLT)); - } - extintr_restore(omsr); -} - -#ifdef DEBUG -int inhibit_watchdog_service = 0; -#endif -void -gt_watchdog_service(void) -{ - struct gt_softc *gt = gt_watchdog_sc; - - if ((gt == NULL) || (gt_watchdog_state == 0)) - return; /* not enabled */ -#ifdef DEBUG - if (inhibit_watchdog_service) - return; -#endif - - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl2a | GT_WDOG_Preset_DFLT)); - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl2b | GT_WDOG_Preset_DFLT)); -} - -/* - * gt_watchdog_reset - force a watchdog reset using Preset_VAL=0 - */ -void -gt_watchdog_reset() -{ - struct gt_softc *gt = gt_watchdog_sc; - u_int32_t r; - - (void)extintr_disable(); - r = gt_read(gt, GT_WDOG_Config); - gt_write(gt, GT_WDOG_Config, (GT_WDOG_Config_Ctl1a | 0)); - gt_write(gt, GT_WDOG_Config, (GT_WDOG_Config_Ctl1b | 0)); - if ((r & GT_WDOG_Config_Enb) != 0) { - /* - * was enabled, we just toggled it off, toggle on again - */ - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1a | 0)); - gt_write(gt, GT_WDOG_Config, - (GT_WDOG_Config_Ctl1b | 0)); - } - for(;;); -} - -static int -gt_devbus_intr(void *arg) -{ - struct gt_softc *gt = (struct gt_softc *)arg; - u_int32_t cause; - u_int32_t addr; - - cause = gt_read(gt, GT_DEVBUS_ICAUSE); - addr = gt_read(gt, GT_DEVBUS_ERR_ADDR); - gt_write(gt, GT_DEVBUS_ICAUSE, 0); /* clear irpt */ - - if (cause & GT_DEVBUS_DBurstErr) { - printf("%s: Device Bus error: burst violation", - gt->gt_dev.dv_xname); - if ((cause & GT_DEVBUS_Sel) == 0) - printf(", addr %#x", addr); - printf("\n"); - } - if (cause & GT_DEVBUS_DRdyErr) { - printf("%s: Device Bus error: ready timer expired", - gt->gt_dev.dv_xname); - if ((cause & GT_DEVBUS_Sel) != 0) - printf(", addr %#x\n", addr); - printf("\n"); - } - - return (cause != 0); -} - -/* - * gt_ecc_intr_enb - enable GT-64260 ECC interrupts - */ -static void -gt_devbus_intr_enb(struct gt_softc *gt) -{ - gt_write(gt, GT_DEVBUS_IMASK, - GT_DEVBUS_DBurstErr|GT_DEVBUS_DRdyErr); - (void)gt_read(gt, GT_DEVBUS_ERR_ADDR); /* clear addr */ - gt_write(gt, GT_ECC_Addr, 0); /* clear irpt */ - - intr_establish(IRQ_DEV, IST_LEVEL, IPL_GTERR, gt_devbus_intr, gt); - printf("%s: Device Bus Error irpt at %d\n", - gt->gt_dev.dv_xname, IRQ_DEV); -} - - -int -gt_mii_read( - struct device *child, - struct device *parent, - int phy, - int reg) -{ - struct gt_softc * const gt = (struct gt_softc *) parent; - uint32_t data; - int count = 10000; - - do { - DELAY(10); - data = gt_read(gt, ETH_ESMIR); - } while ((data & ETH_ESMIR_Busy) && count-- > 0); - - if (count == 0) { - printf("%s: mii read for phy %d reg %d busied out\n", - child->dv_xname, phy, reg); - return ETH_ESMIR_Value_GET(data); - } - - gt_write(gt, ETH_ESMIR, ETH_ESMIR_READ(phy, reg)); - - count = 10000; - do { - DELAY(10); - data = gt_read(gt, ETH_ESMIR); - } while ((data & ETH_ESMIR_ReadValid) == 0 && count-- > 0); - - if (count == 0) - printf("%s: mii read for phy %d reg %d timed out\n", - child->dv_xname, phy, reg); -#if defined(GTMIIDEBUG) - printf("%s: mii_read(%d, %d): %#x data %#x\n", - child->dv_xname, phy, reg, - data, ETH_ESMIR_Value_GET(data)); -#endif - return ETH_ESMIR_Value_GET(data); -} - -void -gt_mii_write ( - struct device *child, - struct device *parent, - int phy, int reg, - int value) -{ - struct gt_softc * const gt = (struct gt_softc *) parent; - uint32_t data; - int count = 10000; - - do { - DELAY(10); - data = gt_read(gt, ETH_ESMIR); - } while ((data & ETH_ESMIR_Busy) && count-- > 0); - - if (count == 0) { - printf("%s: mii write for phy %d reg %d busied out (busy)\n", - child->dv_xname, phy, reg); - return; - } - - gt_write(gt, ETH_ESMIR, - ETH_ESMIR_WRITE(phy, reg, value)); - - count = 10000; - do { - DELAY(10); - data = gt_read(gt, ETH_ESMIR); - } while ((data & ETH_ESMIR_Busy) && count-- > 0); - - if (count == 0) - printf("%s: mii write for phy %d reg %d timed out\n", - child->dv_xname, phy, reg); -#if defined(GTMIIDEBUG) - printf("%s: mii_write(%d, %d, %#x)\n", - child->dv_xname, phy, reg, value); -#endif -} - |