Provide attaching hpc devices with the eeprom contents, should a chip be
connected to the HPC. The only real reason for doing this is to get the mac addresses off of E++ ethernet boards and the Challenge S IOPLUS board. If no eeprom is present, we read in invalid data and take some default action (query ARCBIOS).
This commit is contained in:
rumble
parent
0ff4104d82
commit
121e1e9bfa
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@ -1,4 +1,4 @@
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/* $NetBSD: hpc.c,v 1.41 2006/12/22 05:26:01 rumble Exp $ */
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/* $NetBSD: hpc.c,v 1.42 2006/12/22 08:17:14 rumble Exp $ */
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/*
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* Copyright (c) 2000 Soren S. Jorvang
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@ -35,7 +35,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: hpc.c,v 1.41 2006/12/22 05:26:01 rumble Exp $");
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__KERNEL_RCSID(0, "$NetBSD: hpc.c,v 1.42 2006/12/22 08:17:14 rumble Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -55,6 +55,8 @@ __KERNEL_RCSID(0, "$NetBSD: hpc.c,v 1.41 2006/12/22 05:26:01 rumble Exp $");
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#include <sgimips/hpc/hpcreg.h>
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#include <sgimips/ioc/iocreg.h>
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#include <dev/ic/smc93cx6var.h>
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#include "locators.h"
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static const struct hpc_device {
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@ -339,6 +341,9 @@ static struct callout hpc_blink_ch = CALLOUT_INITIALIZER;
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static void hpc_blink(void *);
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#endif
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static int hpc_read_eeprom(int, bus_space_tag_t, bus_space_handle_t,
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uint8_t *, size_t);
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CFATTACH_DECL(hpc, sizeof(struct hpc_softc),
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hpc_match, hpc_attach, NULL, NULL);
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@ -417,6 +422,8 @@ hpc_attach(struct device *parent, struct device *self, void *aux)
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else
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ha.hpc_regs = &hpc1_values;
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ha.hpc_regs->revision = hpctype;
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hpc_read_eeprom(hpctype, ha.ha_st, ha.ha_sh, ha.hpc_eeprom,
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sizeof(ha.hpc_eeprom));
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(void) config_found_sm_loc(self, "hpc", NULL, &ha, hpc_print,
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hpc_submatch);
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@ -592,3 +599,49 @@ hpc_blink(void *self)
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}
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#endif
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/*
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* Read the eeprom associated with one of the HPC's.
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*
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* NB: An eeprom is not always present, but the HPC should be able to
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* handle this gracefully. Any consumers should validate the data to
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* ensure it's reasonable.
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*/
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static int
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hpc_read_eeprom(int hpctype, bus_space_tag_t t, bus_space_handle_t h,
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uint8_t *buf, size_t len)
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{
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struct seeprom_descriptor sd;
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bus_space_handle_t bsh;
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bus_space_tag_t tag;
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bus_size_t offset;
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if (!len || len & 0x1)
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return (1);
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offset = (hpctype == 3) ? HPC3_EEPROM_DATA : HPC1_AUX_EEPROM;
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tag = SGIMIPS_BUS_SPACE_NORMAL;
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if (bus_space_subregion(t, h, offset, 1, &bsh) != 0)
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return (1);
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sd.sd_chip = C56_66;
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sd.sd_tag = tag;
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sd.sd_bsh = bsh;
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sd.sd_regsize = 1;
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sd.sd_control_offset = 0;
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sd.sd_status_offset = 0;
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sd.sd_dataout_offset = 0;
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sd.sd_DI = 0x10; /* EEPROM -> CPU */
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sd.sd_DO = 0x08; /* CPU -> EEPROM */
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sd.sd_CK = 0x04;
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sd.sd_CS = 0x02;
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sd.sd_MS = 0;
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sd.sd_RDY = 0;
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if (read_seeprom(&sd, (uint16_t *)buf, 0, len / 2) != 1)
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return (1);
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bus_space_unmap(t, bsh, 1);
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return (0);
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: hpcreg.h,v 1.15 2006/12/22 05:08:56 rumble Exp $ */
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/* $NetBSD: hpcreg.h,v 1.16 2006/12/22 08:17:14 rumble Exp $ */
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/*
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* Copyright (c) 2001 Rafal K. Boni
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@ -253,7 +253,8 @@ struct hpc_dma_desc {
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#define HPC3_GIO_MISC 0x00030004 /* GIO64 misc register */
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#define HPC3_EEPROM_DATA 0x00030008 /* Serial EEPROM data reg. */
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#define HPC3_EEPROM_DATA 0x0003000b /* Serial EEPROM data reg. */
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/* (byte) */
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#define HPC3_GIO_BUSERR 0x00030010 /* GIO64 bus error intr stat */
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@ -455,8 +456,8 @@ struct hpc_dma_desc {
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#define HPC1_LPT_DMACFG 0x00000014 /* DMA Configuration */
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#define HPC1_LPT_DEVREGS 0x00000132 /* Ext. Parallel Registers */
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#define HPC1_LPT_DEVREGS_SIZE 0x00000001 /* Size of External Registers */
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#define HPC1_AUX_REGS 0x1fb801bc /* Serial EEPROM/LED Control */
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#define HPC1_AUX_REGS_SIZE 0x00000001 /* One Byte */
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#define HPC1_AUX_LED 0x000001bc /* LED Control (byte) */
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#define HPC1_AUX_CONSLED 0x01 /* Console LED */
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#define HPC1_AUX_EEPROM 0x000001bf /* Serial EEPROM Control(byte)*/
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#endif /* _ARCH_SGIMIPS_HPC_HPCREG_H_ */
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@ -1,4 +1,4 @@
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/* $NetBSD: hpcvar.h,v 1.8 2005/12/11 12:18:53 christos Exp $ */
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/* $NetBSD: hpcvar.h,v 1.9 2006/12/22 08:17:14 rumble Exp $ */
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/*
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* Copyright (c) 2001 Rafal K. Boni
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@ -114,6 +114,8 @@ struct hpc_attach_args {
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bus_dma_tag_t ha_dmat; /* HPC DMA tag */
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struct hpc_values *hpc_regs; /* HPC register definitions */
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uint8_t hpc_eeprom[256];/* HPC eeprom contents */
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};
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#endif /* _ARCH_SGIMIPS_HPC_HPCVAR_H_ */
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@ -1,4 +1,4 @@
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/* $NetBSD: if_sq.c,v 1.29 2005/12/11 12:18:53 christos Exp $ */
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/* $NetBSD: if_sq.c,v 1.30 2006/12/22 08:17:14 rumble Exp $ */
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/*
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* Copyright (c) 2001 Rafal K. Boni
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@ -33,7 +33,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: if_sq.c,v 1.29 2005/12/11 12:18:53 christos Exp $");
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__KERNEL_RCSID(0, "$NetBSD: if_sq.c,v 1.30 2006/12/22 08:17:14 rumble Exp $");
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#include "bpfilter.h"
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@ -137,6 +137,13 @@ CFATTACH_DECL(sq, sizeof(struct sq_softc),
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#define sq_hpc_write(sc, off, val) \
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bus_space_write_4(sc->sc_hpct, sc->sc_hpch, off, val)
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/* MAC address offset for non-onboard implementations */
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#define SQ_HPC_EEPROM_ENADDR 250
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#define SGI_OUI_0 0x08
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#define SGI_OUI_1 0x00
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#define SGI_OUI_2 0x69
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static int
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sq_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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}
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}
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if ((macaddr = ARCBIOS->GetEnvironmentVariable("eaddr")) == NULL) {
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printf(": unable to get MAC address!\n");
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goto fail_6;
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memcpy(sc->sc_enaddr, &haa->hpc_eeprom[SQ_HPC_EEPROM_ENADDR],
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ETHER_ADDR_LEN);
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/*
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* If our mac address is bogus, obtain it from ARCBIOS. This will
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* be true of the onboard HPC3 on IP22, since there is no eeprom,
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* but rather the DS1386 RTC's battery-backed ram is used.
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*/
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if (sc->sc_enaddr[0] != SGI_OUI_0 || sc->sc_enaddr[1] != SGI_OUI_1 ||
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sc->sc_enaddr[2] != SGI_OUI_2) {
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macaddr = ARCBIOS->GetEnvironmentVariable("eaddr");
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if (macaddr == NULL) {
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printf(": unable to get MAC address!\n");
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goto fail_6;
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}
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enaddr_aton(macaddr, sc->sc_enaddr);
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}
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evcnt_attach_dynamic(&sc->sq_intrcnt, EVCNT_TYPE_INTR, NULL,
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printf(": SGI Seeq %s\n",
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sc->sc_type == SQ_TYPE_80C03 ? "80c03" : "8003");
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enaddr_aton(macaddr, sc->sc_enaddr);
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printf("%s: Ethernet address %s\n", sc->sc_dev.dv_xname,
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ether_sprintf(sc->sc_enaddr));
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