Add support for the nForce2/3/4 SMBus controllers which all contain two
SMBus busses. Because of limitations in smbus_if.m, the second smbus is attached to an amdpm1 device that is a child of amdpm0. Submitted by: Artemiev Igor ai (at) bmc dot brk dot ru
This commit is contained in:
John Baldwin
parent
e20daf376d
commit
23de16f9a7
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=153419
183
sys/pci/amdpm.c
183
sys/pci/amdpm.c
@ -71,10 +71,17 @@ static int amdpm_debug = 0;
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/* nVidia nForce chipset */
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#define AMDPM_VENDORID_NVIDIA 0x10de
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#define AMDPM_DEVICEID_NF_SMB 0x01b4
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#define AMDPM_DEVICEID_NF2_SMB 0x0064
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#define AMDPM_DEVICEID_NF2_ULTRA_SMB 0x0084
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#define AMDPM_DEVICEID_NF3_PRO150_SMB 0x00D4
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#define AMDPM_DEVICEID_NF3_250GB_SMB 0x00E4
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#define AMDPM_DEVICEID_NF4_SMB 0x0052
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/* PCI Configuration space registers */
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#define AMDPCI_PMBASE 0x58
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#define NFPCI_PMBASE 0x14
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#define NF2PCI_PMBASE_1 0x50
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#define NF2PCI_PMBASE_2 0x54
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#define AMDPCI_GEN_CONFIG_PM 0x41
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#define AMDPCI_PMIOEN (1<<7)
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@ -126,6 +133,7 @@ struct amdpm_softc {
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bus_space_handle_t smbsh;
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device_t smbus;
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device_t subdev;
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};
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#define AMDPM_SMBINB(amdpm,register) \
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@ -137,6 +145,14 @@ struct amdpm_softc {
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#define AMDPM_SMBOUTW(amdpm,register,value) \
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(bus_space_write_2(amdpm->smbst, amdpm->smbsh, register, value))
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static int
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amdpmsub_probe(device_t dev)
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{
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device_set_desc(dev, "nForce2/3/4 MCP SMBus Controller");
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return (0);
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}
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static int
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amdpm_probe(device_t dev)
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{
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@ -153,7 +169,7 @@ amdpm_probe(device_t dev)
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(did == AMDPM_DEVICEID_AMD8111PM))) {
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device_set_desc(dev, "AMD 756/766/768/8111 Power Management Controller");
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/*
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/*
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* We have to do this, since the BIOS won't give us the
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* resource info (not mine, anyway).
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*/
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@ -164,31 +180,80 @@ amdpm_probe(device_t dev)
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return (BUS_PROBE_DEFAULT);
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}
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if ((vid == AMDPM_VENDORID_NVIDIA) &&
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(did == AMDPM_DEVICEID_NF_SMB)) {
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device_set_desc(dev, "nForce SMBus Controller");
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if (vid == AMDPM_VENDORID_NVIDIA) {
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switch(did) {
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case AMDPM_DEVICEID_NF_SMB:
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device_set_desc(dev, "nForce SMBus Controller");
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/*
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* We have to do this, since the BIOS won't give us the
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* resource info (not mine, anyway).
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*/
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base = pci_read_config(dev, NFPCI_PMBASE, 4);
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base &= 0xff00;
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bus_set_resource(dev, SYS_RES_IOPORT, NFPCI_PMBASE,
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base, 32);
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/*
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* We have to do this, since the BIOS won't give us the
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* resource info (not mine, anyway).
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*/
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base = pci_read_config(dev, NFPCI_PMBASE, 4);
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base &= 0xff00;
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bus_set_resource(dev, SYS_RES_IOPORT, NFPCI_PMBASE,
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base, 32);
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return (BUS_PROBE_DEFAULT);
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return (BUS_PROBE_DEFAULT);
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case AMDPM_DEVICEID_NF2_SMB:
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case AMDPM_DEVICEID_NF2_ULTRA_SMB:
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case AMDPM_DEVICEID_NF3_PRO150_SMB:
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case AMDPM_DEVICEID_NF3_250GB_SMB:
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case AMDPM_DEVICEID_NF4_SMB:
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device_set_desc(dev, "nForce2/3/4 MCP SMBus Controller");
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base = pci_read_config(dev, NF2PCI_PMBASE_1, 4);
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base &= 0xff00;
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bus_set_resource(dev, SYS_RES_IOPORT, NF2PCI_PMBASE_1,
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base, 32);
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return (BUS_PROBE_DEFAULT);
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default:
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break;
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}
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}
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return ENXIO;
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}
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static int
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amdpmsub_attach(device_t dev)
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{
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device_t parent;
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int base;
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struct amdpm_softc *amdpmsub_sc = device_get_softc(dev);
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parent = device_get_parent(dev);
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amdpmsub_sc->rid = NF2PCI_PMBASE_2;
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base = pci_read_config(parent, NF2PCI_PMBASE_2, 4);
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base &= 0xff00;
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bus_set_resource(parent, SYS_RES_IOPORT, NF2PCI_PMBASE_2, base, 32);
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amdpmsub_sc->res = bus_alloc_resource_any(parent, SYS_RES_IOPORT,
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&amdpmsub_sc->rid, RF_ACTIVE);
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if (amdpmsub_sc->res == NULL) {
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device_printf(dev, "could not map i/o space\n");
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return (ENXIO);
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}
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amdpmsub_sc->smbst = rman_get_bustag(amdpmsub_sc->res);
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amdpmsub_sc->smbsh = rman_get_bushandle(amdpmsub_sc->res);
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amdpmsub_sc->smbus = device_add_child(dev, "smbus", -1);
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if (amdpmsub_sc->smbus == NULL)
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return (EINVAL);
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bus_generic_attach(dev);
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return (0);
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}
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static int
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amdpm_attach(device_t dev)
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{
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struct amdpm_softc *amdpm_sc = device_get_softc(dev);
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u_char val_b;
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/* Enable I/O block access */
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val_b = pci_read_config(dev, AMDPCI_GEN_CONFIG_PM, 1);
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pci_write_config(dev, AMDPCI_GEN_CONFIG_PM, val_b | AMDPCI_PMIOEN, 1);
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@ -196,15 +261,17 @@ amdpm_attach(device_t dev)
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/* Allocate I/O space */
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if (pci_get_vendor(dev) == AMDPM_VENDORID_AMD)
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amdpm_sc->rid = AMDPCI_PMBASE;
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else
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else if (pci_get_device(dev) == AMDPM_DEVICEID_NF_SMB)
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amdpm_sc->rid = NFPCI_PMBASE;
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else
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amdpm_sc->rid = NF2PCI_PMBASE_1;
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amdpm_sc->res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
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&amdpm_sc->rid, RF_ACTIVE);
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if (amdpm_sc->res == NULL) {
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device_printf(dev, "could not map i/o space\n");
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return (ENXIO);
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}
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}
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amdpm_sc->smbst = rman_get_bustag(amdpm_sc->res);
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amdpm_sc->smbsh = rman_get_bushandle(amdpm_sc->res);
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@ -214,16 +281,55 @@ amdpm_attach(device_t dev)
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if (!amdpm_sc->smbus)
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return (EINVAL);
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amdpm_sc->subdev = NULL;
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if (pci_get_vendor(dev) == AMDPM_VENDORID_NVIDIA)
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switch (pci_get_device(dev)) {
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case AMDPM_DEVICEID_NF2_SMB:
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case AMDPM_DEVICEID_NF2_ULTRA_SMB:
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case AMDPM_DEVICEID_NF3_PRO150_SMB:
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case AMDPM_DEVICEID_NF3_250GB_SMB:
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case AMDPM_DEVICEID_NF4_SMB:
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/* Trying to add secondary device as slave */
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amdpm_sc->subdev = device_add_child(dev, "amdpm", -1);
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if (!amdpm_sc->subdev) return (EINVAL);
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break;
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default:
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break;
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}
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bus_generic_attach(dev);
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return (0);
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}
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static int
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amdpmsub_detach(device_t dev)
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{
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device_t parent;
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struct amdpm_softc *amdpmsub_sc = device_get_softc(dev);
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parent = device_get_parent(dev);
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if (amdpmsub_sc->smbus) {
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device_delete_child(dev, amdpmsub_sc->smbus);
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amdpmsub_sc->smbus = NULL;
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}
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if (amdpmsub_sc->res)
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bus_release_resource(parent, SYS_RES_IOPORT, amdpmsub_sc->rid,
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amdpmsub_sc->res);
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return 0;
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}
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static int
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amdpm_detach(device_t dev)
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{
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struct amdpm_softc *amdpm_sc = device_get_softc(dev);
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if (amdpm_sc->subdev) {
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device_delete_child(dev, amdpm_sc->subdev);
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amdpm_sc->subdev = NULL;
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}
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if (amdpm_sc->smbus) {
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device_delete_child(dev, amdpm_sc->smbus);
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amdpm_sc->smbus = NULL;
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@ -266,7 +372,7 @@ static int
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amdpm_abort(struct amdpm_softc *sc)
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{
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u_short l;
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l = AMDPM_SMBINW(sc, AMDSMB_GLOBAL_ENABLE);
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AMDPM_SMBOUTW(sc, AMDSMB_GLOBAL_ENABLE, l | AMDSMB_GE_ABORT);
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@ -518,7 +624,7 @@ amdpm_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf)
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len = min(remain, 32);
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AMDPM_SMBOUTW(sc, AMDSMB_HSTADDR, slave & ~LSB);
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/*
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* Do we have to reset the internal 32-byte buffer?
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* Can't see how to do this from the data sheet.
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@ -562,12 +668,12 @@ amdpm_bread(device_t dev, u_char slave, char cmd, u_char count, char *buf)
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remain = count;
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while (remain) {
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AMDPM_SMBOUTW(sc, AMDSMB_HSTADDR, slave | LSB);
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AMDPM_SMBOUTB(sc, AMDSMB_HSTCMD, cmd);
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l = AMDPM_SMBINW(sc, AMDSMB_GLOBAL_ENABLE);
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AMDPM_SMBOUTW(sc, AMDSMB_GLOBAL_ENABLE, (l & 0xfff8) | AMDSMB_GE_CYC_BLOCK | AMDSMB_GE_HOST_STC);
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if ((error = amdpm_wait(sc)) != SMB_ENOERR)
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goto error;
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@ -587,14 +693,13 @@ amdpm_bread(device_t dev, u_char slave, char cmd, u_char count, char *buf)
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return (error);
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}
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static devclass_t amdpm_devclass;
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static device_method_t amdpm_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, amdpm_probe),
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DEVMETHOD(device_attach, amdpm_attach),
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DEVMETHOD(device_detach, amdpm_detach),
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/* SMBus interface */
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DEVMETHOD(smbus_callback, amdpm_callback),
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DEVMETHOD(smbus_quick, amdpm_quick),
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@ -606,17 +711,47 @@ static device_method_t amdpm_methods[] = {
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DEVMETHOD(smbus_readw, amdpm_readw),
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DEVMETHOD(smbus_bwrite, amdpm_bwrite),
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DEVMETHOD(smbus_bread, amdpm_bread),
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{ 0, 0 }
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};
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static device_method_t amdpmsub_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, amdpmsub_probe),
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DEVMETHOD(device_attach, amdpmsub_attach),
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DEVMETHOD(device_detach, amdpmsub_detach),
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/* SMBus interface */
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DEVMETHOD(smbus_callback, amdpm_callback),
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DEVMETHOD(smbus_quick, amdpm_quick),
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DEVMETHOD(smbus_sendb, amdpm_sendb),
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DEVMETHOD(smbus_recvb, amdpm_recvb),
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DEVMETHOD(smbus_writeb, amdpm_writeb),
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DEVMETHOD(smbus_readb, amdpm_readb),
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DEVMETHOD(smbus_writew, amdpm_writew),
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DEVMETHOD(smbus_readw, amdpm_readw),
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DEVMETHOD(smbus_bwrite, amdpm_bwrite),
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DEVMETHOD(smbus_bread, amdpm_bread),
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{ 0, 0 }
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};
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static devclass_t amdpm_devclass;
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static driver_t amdpm_driver = {
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"amdpm",
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amdpm_methods,
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sizeof(struct amdpm_softc),
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};
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static driver_t amdpmsub_driver = {
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"amdpm",
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amdpmsub_methods,
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sizeof(struct amdpm_softc),
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};
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DRIVER_MODULE(amdpm, pci, amdpm_driver, amdpm_devclass, 0, 0);
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DRIVER_MODULE(amdpm, amdpm, amdpmsub_driver, amdpm_devclass, 0, 0);
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MODULE_DEPEND(amdpm, pci, 1, 1, 1);
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MODULE_DEPEND(amdpm, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER);
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