Author: mav Date: Tue Oct 2 22:03:21 2012 New Revision: 241144 URL: http://svn.freebsd.org/changeset/base/241144
Log: Implement SATA revision (speed) control for legacy SATA controller for both boot (via loader tunables) and run-time (via `camcontrol negotiate`). Tested to work at least on NVIDIA MCP55 chipset. H/w provided by: glebius Modified: head/share/man/man4/ata.4 head/sys/dev/ata/ata-all.c head/sys/dev/ata/ata-all.h head/sys/dev/ata/ata-sata.c Modified: head/share/man/man4/ata.4 ============================================================================== --- head/share/man/man4/ata.4 Tue Oct 2 19:10:19 2012 (r241143) +++ head/share/man/man4/ata.4 Tue Oct 2 22:03:21 2012 (r241144) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd June 18, 2012 +.Dd October 3, 2012 .Dt ATA 4 .Os .Sh NAME @@ -99,7 +99,7 @@ set to 0 to disable the 80pin cable chec set to 1 to allow Message Signalled Interrupts (MSI) to be used by the specified PCI ATA controller, if supported. .It Va hint.ata.X.devX.mode -limits the initial ATA mode for the specified device on specified the channel. +limits the initial ATA mode for the specified device on the specified channel. .It Va hint.ata.X.mode limits the initial ATA mode for every device on the specified channel. .It Va hint.ata.X.pm_level @@ -120,6 +120,12 @@ host initiates SLUMBER PM state transiti .El .Pp Modes 2 and 3 are only supported for AHCI. +.It Va hint.ata. Ns Ar X Ns Va .dev Ns Ar X Ns Va .sata_rev +limits the initial SATA revision (speed) for the specified device +on the specified channel. +Values 1, 2 and 3 are respectively 1.5, 3 and 6Gbps. +.It Va hint.ata. Ns Ar X Ns Va .sata_rev +Same, but for every device on the specified channel. .El .Sh DESCRIPTION The Modified: head/sys/dev/ata/ata-all.c ============================================================================== --- head/sys/dev/ata/ata-all.c Tue Oct 2 19:10:19 2012 (r241143) +++ head/sys/dev/ata/ata-all.c Tue Oct 2 22:03:21 2012 (r241144) @@ -172,6 +172,15 @@ ata_attach(device_t dev) TASK_INIT(&ch->conntask, 0, ata_conn_event, dev); #ifdef ATA_CAM for (i = 0; i < 16; i++) { + ch->user[i].revision = 0; + snprintf(buf, sizeof(buf), "dev%d.sata_rev", i); + if (resource_int_value(device_get_name(dev), + device_get_unit(dev), buf, &mode) != 0 && + resource_int_value(device_get_name(dev), + device_get_unit(dev), "sata_rev", &mode) != 0) + mode = -1; + if (mode >= 0) + ch->user[i].revision = mode; ch->user[i].mode = 0; snprintf(buf, sizeof(buf), "dev%d.mode", i); if (resource_string_value(device_get_name(dev), Modified: head/sys/dev/ata/ata-all.h ============================================================================== --- head/sys/dev/ata/ata-all.h Tue Oct 2 19:10:19 2012 (r241143) +++ head/sys/dev/ata/ata-all.h Tue Oct 2 22:03:21 2012 (r241144) @@ -142,6 +142,7 @@ #define ATA_SC_SPD_NO_SPEED 0x00000000 #define ATA_SC_SPD_SPEED_GEN1 0x00000010 #define ATA_SC_SPD_SPEED_GEN2 0x00000020 +#define ATA_SC_SPD_SPEED_GEN3 0x00000040 #define ATA_SC_IPM_MASK 0x00000f00 #define ATA_SC_IPM_NONE 0x00000000 Modified: head/sys/dev/ata/ata-sata.c ============================================================================== --- head/sys/dev/ata/ata-sata.c Tue Oct 2 19:10:19 2012 (r241143) +++ head/sys/dev/ata/ata-sata.c Tue Oct 2 22:03:21 2012 (r241144) @@ -152,8 +152,12 @@ int ata_sata_phy_reset(device_t dev, int port, int quick) { struct ata_channel *ch = device_get_softc(dev); - int loop, retry; - uint32_t val; + int loop, retry, sata_rev; + uint32_t val, val1; + + sata_rev = ch->user[port < 0 ? 0 : port].revision; + if (sata_rev > 0) + quick = 0; if (quick) { if (ata_sata_scr_read(ch, port, ATA_SCONTROL, &val)) @@ -173,9 +177,18 @@ ata_sata_phy_reset(device_t dev, int por device_printf(dev, "p%d: hard reset ...\n", port); } } + if (sata_rev == 1) + val1 = ATA_SC_SPD_SPEED_GEN1; + else if (sata_rev == 2) + val1 = ATA_SC_SPD_SPEED_GEN2; + else if (sata_rev == 3) + val1 = ATA_SC_SPD_SPEED_GEN3; + else + val1 = 0; for (retry = 0; retry < 10; retry++) { for (loop = 0; loop < 10; loop++) { - if (ata_sata_scr_write(ch, port, ATA_SCONTROL, ATA_SC_DET_RESET)) + if (ata_sata_scr_write(ch, port, ATA_SCONTROL, ATA_SC_DET_RESET | + val1 | ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER)) goto fail; ata_udelay(100); if (ata_sata_scr_read(ch, port, ATA_SCONTROL, &val)) @@ -186,7 +199,7 @@ ata_sata_phy_reset(device_t dev, int por ata_udelay(5000); for (loop = 0; loop < 10; loop++) { if (ata_sata_scr_write(ch, port, ATA_SCONTROL, - ATA_SC_DET_IDLE | ((ch->pm_level > 0) ? 0 : + ATA_SC_DET_IDLE | val1 | ((ch->pm_level > 0) ? 0 : ATA_SC_IPM_DIS_PARTIAL | ATA_SC_IPM_DIS_SLUMBER))) goto fail; ata_udelay(100); _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"