diff options
| -rw-r--r-- | drivers/ata/sata_promise.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c index 9c4389b5689a..8daf5d67dfe2 100644 --- a/drivers/ata/sata_promise.c +++ b/drivers/ata/sata_promise.c @@ -52,13 +52,13 @@ enum { PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ - PDC_TBG_MODE = 0x41C, /* TBG mode */ PDC_FLASH_CTL = 0x44, /* Flash control register */ PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */ PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */ PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */ PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */ - PDC_SLEW_CTL = 0x470, /* slew rate control reg */ + PDC_TBG_MODE = 0x41C, /* TBG mode (not SATAII) */ + PDC_SLEW_CTL = 0x470, /* slew rate control reg (not SATAII) */ PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | (1<<8) | (1<<9) | (1<<10), @@ -77,6 +77,9 @@ enum { PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST | ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI | ATA_FLAG_PIO_POLLING, + + /* hp->flags bits */ + PDC_FLAG_GEN_II = (1 << 0), }; @@ -86,6 +89,7 @@ struct pdc_port_priv { }; struct pdc_host_priv { + unsigned long flags; int hotplug_offset; }; @@ -234,20 +238,20 @@ static const struct ata_port_info pdc_port_info[] = { static const struct pci_device_id pdc_ata_pci_tbl[] = { { PCI_VDEVICE(PROMISE, 0x3371), board_2037x }, - { PCI_VDEVICE(PROMISE, 0x3570), board_2037x }, - { PCI_VDEVICE(PROMISE, 0x3571), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3373), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3375), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3376), board_2037x }, + { PCI_VDEVICE(PROMISE, 0x3570), board_2057x }, + { PCI_VDEVICE(PROMISE, 0x3571), board_2057x }, { PCI_VDEVICE(PROMISE, 0x3574), board_2057x }, + { PCI_VDEVICE(PROMISE, 0x3d73), board_2057x }, { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x }, - { PCI_VDEVICE(PROMISE, 0x3d73), board_2037x }, { PCI_VDEVICE(PROMISE, 0x3318), board_20319 }, { PCI_VDEVICE(PROMISE, 0x3319), board_20319 }, { PCI_VDEVICE(PROMISE, 0x3515), board_20319 }, { PCI_VDEVICE(PROMISE, 0x3519), board_20319 }, - { PCI_VDEVICE(PROMISE, 0x3d17), board_20319 }, + { PCI_VDEVICE(PROMISE, 0x3d17), board_40518 }, { PCI_VDEVICE(PROMISE, 0x3d18), board_40518 }, { PCI_VDEVICE(PROMISE, 0x6629), board_20619 }, @@ -639,9 +643,11 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) * "TODO: figure out why we do this" */ - /* change FIFO_SHD to 8 dwords, enable BMR_BURST */ + /* enable BMR_BURST, maybe change FIFO_SHD to 8 dwords */ tmp = readl(mmio + PDC_FLASH_CTL); - tmp |= 0x12000; /* bit 16 (fifo 8 dw) and 13 (bmr burst?) */ + tmp |= 0x02000; /* bit 13 (enable bmr burst) */ + if (!(hp->flags & PDC_FLAG_GEN_II)) + tmp |= 0x10000; /* bit 16 (fifo threshold at 8 dw) */ writel(tmp, mmio + PDC_FLASH_CTL); /* clear plug/unplug flags for all ports */ @@ -652,6 +658,10 @@ static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) tmp = readl(mmio + hotplug_offset); writel(tmp | 0xff0000, mmio + hotplug_offset); + /* don't initialise TBG or SLEW on 2nd generation chips */ + if (hp->flags & PDC_FLAG_GEN_II) + return; + /* reduce TBG clock to 133 Mhz. */ tmp = readl(mmio + PDC_TBG_MODE); tmp &= ~0x30000; /* clear bit 17, 16*/ @@ -745,6 +755,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e /* notice 4-port boards */ switch (board_idx) { case board_40518: + hp->flags |= PDC_FLAG_GEN_II; /* Override hotplug offset for SATAII150 */ hp->hotplug_offset = PDC2_SATA_PLUG_CSR; /* Fall through */ @@ -758,15 +769,14 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e probe_ent->port[3].scr_addr = base + 0x700; break; case board_2057x: + case board_20771: + hp->flags |= PDC_FLAG_GEN_II; /* Override hotplug offset for SATAII150 */ hp->hotplug_offset = PDC2_SATA_PLUG_CSR; /* Fall through */ case board_2037x: probe_ent->n_ports = 2; break; - case board_20771: - probe_ent->n_ports = 2; - break; case board_20619: probe_ent->n_ports = 4; |