From d73f30e1c9a9af14757fa5bf4014343926047156 Mon Sep 17 00:00:00 2001 From: Alan Date: Mon, 8 Jan 2007 17:11:13 +0000 Subject: [PATCH] sata_via: PATA support Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- drivers/ata/sata_via.c | 108 ++++++++++++++++++++++++++++++++++++++--- 1 file changed, 102 insertions(+), 6 deletions(-) diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 038d49d0f2ab..e95acfac30b9 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -59,11 +59,14 @@ enum { SATA_INT_GATE = 0x41, /* SATA interrupt gating */ SATA_NATIVE_MODE = 0x42, /* Native mode enable */ SATA_PATA_SHARING = 0x49, /* PATA/SATA sharing func ctrl */ - + PATA_UDMA_TIMING = 0xB3, /* PATA timing for DMA/ cable detect */ + PATA_PIO_TIMING = 0xAB, /* PATA timing register */ + PORT0 = (1 << 1), PORT1 = (1 << 0), ALL_PORTS = PORT0 | PORT1, - N_PORTS = 2, + PATA_PORT = 2, /* PATA is port 2 */ + N_PORTS = 3, NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4), @@ -76,6 +79,11 @@ static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg); static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); static void svia_noop_freeze(struct ata_port *ap); static void vt6420_error_handler(struct ata_port *ap); +static void vt6421_sata_error_handler(struct ata_port *ap); +static void vt6421_pata_error_handler(struct ata_port *ap); +static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev); +static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev); +static int vt6421_port_start(struct ata_port *ap); static const struct pci_device_id svia_pci_tbl[] = { { PCI_VDEVICE(VIA, 0x5337), vt6420 }, @@ -142,9 +150,43 @@ static const struct ata_port_operations vt6420_sata_ops = { .host_stop = ata_host_stop, }; -static const struct ata_port_operations vt6421_sata_ops = { +static const struct ata_port_operations vt6421_pata_ops = { .port_disable = ata_port_disable, + + .set_piomode = vt6421_set_pio_mode, + .set_dmamode = vt6421_set_dma_mode, + + .tf_load = ata_tf_load, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = ata_exec_command, + .dev_select = ata_std_dev_select, + + .bmdma_setup = ata_bmdma_setup, + .bmdma_start = ata_bmdma_start, + .bmdma_stop = ata_bmdma_stop, + .bmdma_status = ata_bmdma_status, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + .data_xfer = ata_pio_data_xfer, + + .freeze = ata_bmdma_freeze, + .thaw = ata_bmdma_thaw, + .error_handler = vt6421_pata_error_handler, + .post_internal_cmd = ata_bmdma_post_internal_cmd, + .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + + .port_start = vt6421_port_start, + .port_stop = ata_port_stop, + .host_stop = ata_host_stop, +}; + +static const struct ata_port_operations vt6421_sata_ops = { + .port_disable = ata_port_disable, + .tf_load = ata_tf_load, .tf_read = ata_tf_read, .check_status = ata_check_status, @@ -162,7 +204,7 @@ static const struct ata_port_operations vt6421_sata_ops = { .freeze = ata_bmdma_freeze, .thaw = ata_bmdma_thaw, - .error_handler = ata_bmdma_error_handler, + .error_handler = vt6421_sata_error_handler, .post_internal_cmd = ata_bmdma_post_internal_cmd, .irq_handler = ata_interrupt, @@ -171,7 +213,7 @@ static const struct ata_port_operations vt6421_sata_ops = { .scr_read = svia_scr_read, .scr_write = svia_scr_write, - .port_start = ata_port_start, + .port_start = vt6421_port_start, .port_stop = ata_port_stop, .host_stop = ata_host_stop, }; @@ -289,6 +331,61 @@ static void vt6420_error_handler(struct ata_port *ap) NULL, ata_std_postreset); } +static int vt6421_pata_prereset(struct ata_port *ap) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + u8 tmp; + + pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp); + if (tmp & 0x10) + ap->cbl = ATA_CBL_PATA40; + else + ap->cbl = ATA_CBL_PATA80; + return 0; +} + +static void vt6421_pata_error_handler(struct ata_port *ap) +{ + return ata_bmdma_drive_eh(ap, vt6421_pata_prereset, ata_std_softreset, + NULL, ata_std_postreset); +} + +static int vt6421_sata_prereset(struct ata_port *ap) +{ + ap->cbl = ATA_CBL_SATA; + return 0; +} + +static void vt6421_sata_error_handler(struct ata_port *ap) +{ + return ata_bmdma_drive_eh(ap, vt6421_sata_prereset, ata_std_softreset, + NULL, ata_std_postreset); +} + +static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 }; + pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]); +} + +static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev) +{ + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 }; + pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->pio_mode - XFER_UDMA_0]); +} + +static int vt6421_port_start(struct ata_port *ap) +{ + if (ap->port_no == PATA_PORT) { + ap->ops = &vt6421_pata_ops; + ap->mwdma_mask = 0; + ap->flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST; + } + return ata_port_start(ap); +} + static const unsigned int svia_bar_sizes[] = { 8, 4, 8, 4, 16, 256 }; @@ -511,4 +608,3 @@ static void __exit svia_exit(void) module_init(svia_init); module_exit(svia_exit); - -- 2.20.1