diff options
Diffstat (limited to 'drivers/scsi/sata_sx4.c')
| -rw-r--r-- | drivers/scsi/sata_sx4.c | 1502 |
1 files changed, 0 insertions, 1502 deletions
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c deleted file mode 100644 index ccc8cad24f7..00000000000 --- a/drivers/scsi/sata_sx4.c +++ /dev/null @@ -1,1502 +0,0 @@ -/* - * sata_sx4.c - Promise SATA - * - * Maintained by: Jeff Garzik <jgarzik@pobox.com> - * Please ALWAYS copy linux-ide@vger.kernel.org - * on emails. - * - * Copyright 2003-2004 Red Hat, Inc. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - * libata documentation is available via 'make {ps|pdf}docs', - * as Documentation/DocBook/libata.* - * - * Hardware documentation available under NDA. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/blkdev.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/sched.h> -#include <linux/device.h> -#include <scsi/scsi_host.h> -#include <scsi/scsi_cmnd.h> -#include <linux/libata.h> -#include <asm/io.h> -#include "sata_promise.h" - -#define DRV_NAME "sata_sx4" -#define DRV_VERSION "0.9" - - -enum { - PDC_PRD_TBL = 0x44, /* Direct command DMA table addr */ - - PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ - PDC_HDMA_PKT_SUBMIT = 0x100, /* Host DMA packet pointer addr */ - PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ - PDC_HDMA_CTLSTAT = 0x12C, /* Host DMA control / status */ - - PDC_20621_SEQCTL = 0x400, - PDC_20621_SEQMASK = 0x480, - PDC_20621_GENERAL_CTL = 0x484, - PDC_20621_PAGE_SIZE = (32 * 1024), - - /* chosen, not constant, values; we design our own DIMM mem map */ - PDC_20621_DIMM_WINDOW = 0x0C, /* page# for 32K DIMM window */ - PDC_20621_DIMM_BASE = 0x00200000, - PDC_20621_DIMM_DATA = (64 * 1024), - PDC_DIMM_DATA_STEP = (256 * 1024), - PDC_DIMM_WINDOW_STEP = (8 * 1024), - PDC_DIMM_HOST_PRD = (6 * 1024), - PDC_DIMM_HOST_PKT = (128 * 0), - PDC_DIMM_HPKT_PRD = (128 * 1), - PDC_DIMM_ATA_PKT = (128 * 2), - PDC_DIMM_APKT_PRD = (128 * 3), - PDC_DIMM_HEADER_SZ = PDC_DIMM_APKT_PRD + 128, - PDC_PAGE_WINDOW = 0x40, - PDC_PAGE_DATA = PDC_PAGE_WINDOW + - (PDC_20621_DIMM_DATA / PDC_20621_PAGE_SIZE), - PDC_PAGE_SET = PDC_DIMM_DATA_STEP / PDC_20621_PAGE_SIZE, - - PDC_CHIP0_OFS = 0xC0000, /* offset of chip #0 */ - - PDC_20621_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | - (1<<23), - - board_20621 = 0, /* FastTrak S150 SX4 */ - - PDC_RESET = (1 << 11), /* HDMA reset */ - - PDC_MAX_HDMA = 32, - PDC_HDMA_Q_MASK = (PDC_MAX_HDMA - 1), - - PDC_DIMM0_SPD_DEV_ADDRESS = 0x50, - PDC_DIMM1_SPD_DEV_ADDRESS = 0x51, - PDC_MAX_DIMM_MODULE = 0x02, - PDC_I2C_CONTROL_OFFSET = 0x48, - PDC_I2C_ADDR_DATA_OFFSET = 0x4C, - PDC_DIMM0_CONTROL_OFFSET = 0x80, - PDC_DIMM1_CONTROL_OFFSET = 0x84, - PDC_SDRAM_CONTROL_OFFSET = 0x88, - PDC_I2C_WRITE = 0x00000000, - PDC_I2C_READ = 0x00000040, - PDC_I2C_START = 0x00000080, - PDC_I2C_MASK_INT = 0x00000020, - PDC_I2C_COMPLETE = 0x00010000, - PDC_I2C_NO_ACK = 0x00100000, - PDC_DIMM_SPD_SUBADDRESS_START = 0x00, - PDC_DIMM_SPD_SUBADDRESS_END = 0x7F, - PDC_DIMM_SPD_ROW_NUM = 3, - PDC_DIMM_SPD_COLUMN_NUM = 4, - PDC_DIMM_SPD_MODULE_ROW = 5, - PDC_DIMM_SPD_TYPE = 11, - PDC_DIMM_SPD_FRESH_RATE = 12, - PDC_DIMM_SPD_BANK_NUM = 17, - PDC_DIMM_SPD_CAS_LATENCY = 18, - PDC_DIMM_SPD_ATTRIBUTE = 21, - PDC_DIMM_SPD_ROW_PRE_CHARGE = 27, - PDC_DIMM_SPD_ROW_ACTIVE_DELAY = 28, - PDC_DIMM_SPD_RAS_CAS_DELAY = 29, - PDC_DIMM_SPD_ACTIVE_PRECHARGE = 30, - PDC_DIMM_SPD_SYSTEM_FREQ = 126, - PDC_CTL_STATUS = 0x08, - PDC_DIMM_WINDOW_CTLR = 0x0C, - PDC_TIME_CONTROL = 0x3C, - PDC_TIME_PERIOD = 0x40, - PDC_TIME_COUNTER = 0x44, - PDC_GENERAL_CTLR = 0x484, - PCI_PLL_INIT = 0x8A531824, - PCI_X_TCOUNT = 0xEE1E5CFF -}; - - -struct pdc_port_priv { - u8 dimm_buf[(ATA_PRD_SZ * ATA_MAX_PRD) + 512]; - u8 *pkt; - dma_addr_t pkt_dma; -}; - -struct pdc_host_priv { - void __iomem *dimm_mmio; - - unsigned int doing_hdma; - unsigned int hdma_prod; - unsigned int hdma_cons; - struct { - struct ata_queued_cmd *qc; - unsigned int seq; - unsigned long pkt_ofs; - } hdma[32]; -}; - - -static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); -static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_regs *regs); -static void pdc_eng_timeout(struct ata_port *ap); -static void pdc_20621_phy_reset (struct ata_port *ap); -static int pdc_port_start(struct ata_port *ap); -static void pdc_port_stop(struct ata_port *ap); -static void pdc20621_qc_prep(struct ata_queued_cmd *qc); -static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); -static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf); -static void pdc20621_host_stop(struct ata_host_set *host_set); -static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe); -static int pdc20621_detect_dimm(struct ata_probe_ent *pe); -static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, - u32 device, u32 subaddr, u32 *pdata); -static int pdc20621_prog_dimm0(struct ata_probe_ent *pe); -static unsigned int pdc20621_prog_dimm_global(struct ata_probe_ent *pe); -#ifdef ATA_VERBOSE_DEBUG -static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, - void *psource, u32 offset, u32 size); -#endif -static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, - void *psource, u32 offset, u32 size); -static void pdc20621_irq_clear(struct ata_port *ap); -static unsigned int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc); - - -static struct scsi_host_template pdc_sata_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .ioctl = ata_scsi_ioctl, - .queuecommand = ata_scsi_queuecmd, - .can_queue = ATA_DEF_QUEUE, - .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = LIBATA_MAX_PRD, - .cmd_per_lun = ATA_SHT_CMD_PER_LUN, - .emulated = ATA_SHT_EMULATED, - .use_clustering = ATA_SHT_USE_CLUSTERING, - .proc_name = DRV_NAME, - .dma_boundary = ATA_DMA_BOUNDARY, - .slave_configure = ata_scsi_slave_config, - .slave_destroy = ata_scsi_slave_destroy, - .bios_param = ata_std_bios_param, -}; - -static const struct ata_port_operations pdc_20621_ops = { - .port_disable = ata_port_disable, - .tf_load = pdc_tf_load_mmio, - .tf_read = ata_tf_read, - .check_status = ata_check_status, - .exec_command = pdc_exec_command_mmio, - .dev_select = ata_std_dev_select, - .phy_reset = pdc_20621_phy_reset, - .qc_prep = pdc20621_qc_prep, - .qc_issue = pdc20621_qc_issue_prot, - .data_xfer = ata_mmio_data_xfer, - .eng_timeout = pdc_eng_timeout, - .irq_handler = pdc20621_interrupt, - .irq_clear = pdc20621_irq_clear, - .port_start = pdc_port_start, - .port_stop = pdc_port_stop, - .host_stop = pdc20621_host_stop, -}; - -static const struct ata_port_info pdc_port_info[] = { - /* board_20621 */ - { - .sht = &pdc_sata_sht, - .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | - ATA_FLAG_SRST | ATA_FLAG_MMIO | - ATA_FLAG_NO_ATAPI | ATA_FLAG_PIO_POLLING, - .pio_mask = 0x1f, /* pio0-4 */ - .mwdma_mask = 0x07, /* mwdma0-2 */ - .udma_mask = 0x7f, /* udma0-6 ; FIXME */ - .port_ops = &pdc_20621_ops, - }, - -}; - -static const struct pci_device_id pdc_sata_pci_tbl[] = { - { PCI_VENDOR_ID_PROMISE, 0x6622, PCI_ANY_ID, PCI_ANY_ID, 0, 0, - board_20621 }, - { } /* terminate list */ -}; - - -static struct pci_driver pdc_sata_pci_driver = { - .name = DRV_NAME, - .id_table = pdc_sata_pci_tbl, - .probe = pdc_sata_init_one, - .remove = ata_pci_remove_one, -}; - - -static void pdc20621_host_stop(struct ata_host_set *host_set) -{ - struct pci_dev *pdev = to_pci_dev(host_set->dev); - struct pdc_host_priv *hpriv = host_set->private_data; - void __iomem *dimm_mmio = hpriv->dimm_mmio; - - pci_iounmap(pdev, dimm_mmio); - kfree(hpriv); - - pci_iounmap(pdev, host_set->mmio_base); -} - -static int pdc_port_start(struct ata_port *ap) -{ - struct device *dev = ap->host_set->dev; - struct pdc_port_priv *pp; - int rc; - - rc = ata_port_start(ap); - if (rc) - return rc; - - pp = kmalloc(sizeof(*pp), GFP_KERNEL); - if (!pp) { - rc = -ENOMEM; - goto err_out; - } - memset(pp, 0, sizeof(*pp)); - - pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); - if (!pp->pkt) { - rc = -ENOMEM; - goto err_out_kfree; - } - - ap->private_data = pp; - - return 0; - -err_out_kfree: - kfree(pp); -err_out: - ata_port_stop(ap); - return rc; -} - - -static void pdc_port_stop(struct ata_port *ap) -{ - struct device *dev = ap->host_set->dev; - struct pdc_port_priv *pp = ap->private_data; - - ap->private_data = NULL; - dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma); - kfree(pp); - ata_port_stop(ap); -} - - -static void pdc_20621_phy_reset (struct ata_port *ap) -{ - VPRINTK("ENTER\n"); - ap->cbl = ATA_CBL_SATA; - ata_port_probe(ap); - ata_bus_reset(ap); -} - -static inline void pdc20621_ata_sg(struct ata_taskfile *tf, u8 *buf, - unsigned int portno, - unsigned int total_len) -{ - u32 addr; - unsigned int dw = PDC_DIMM_APKT_PRD >> 2; - u32 *buf32 = (u32 *) buf; - - /* output ATA packet S/G table */ - addr = PDC_20621_DIMM_BASE + PDC_20621_DIMM_DATA + - (PDC_DIMM_DATA_STEP * portno); - VPRINTK("ATA sg addr 0x%x, %d\n", addr, addr); - buf32[dw] = cpu_to_le32(addr); - buf32[dw + 1] = cpu_to_le32(total_len | ATA_PRD_EOT); - - VPRINTK("ATA PSG @ %x == (0x%x, 0x%x)\n", - PDC_20621_DIMM_BASE + - (PDC_DIMM_WINDOW_STEP * portno) + - PDC_DIMM_APKT_PRD, - buf32[dw], buf32[dw + 1]); -} - -static inline void pdc20621_host_sg(struct ata_taskfile *tf, u8 *buf, - unsigned int portno, - unsigned int total_len) -{ - u32 addr; - unsigned int dw = PDC_DIMM_HPKT_PRD >> 2; - u32 *buf32 = (u32 *) buf; - - /* output Host DMA packet S/G table */ - addr = PDC_20621_DIMM_BASE + PDC_20621_DIMM_DATA + - (PDC_DIMM_DATA_STEP * portno); - - buf32[dw] = cpu_to_le32(addr); - buf32[dw + 1] = cpu_to_le32(total_len | ATA_PRD_EOT); - - VPRINTK("HOST PSG @ %x == (0x%x, 0x%x)\n", - PDC_20621_DIMM_BASE + - (PDC_DIMM_WINDOW_STEP * portno) + - PDC_DIMM_HPKT_PRD, - buf32[dw], buf32[dw + 1]); -} - -static inline unsigned int pdc20621_ata_pkt(struct ata_taskfile *tf, - unsigned int devno, u8 *buf, - unsigned int portno) -{ - unsigned int i, dw; - u32 *buf32 = (u32 *) buf; - u8 dev_reg; - - unsigned int dimm_sg = PDC_20621_DIMM_BASE + - (PDC_DIMM_WINDOW_STEP * portno) + - PDC_DIMM_APKT_PRD; - VPRINTK("ENTER, dimm_sg == 0x%x, %d\n", dimm_sg, dimm_sg); - - i = PDC_DIMM_ATA_PKT; - - /* - * Set up ATA packet - */ - if ((tf->protocol == ATA_PROT_DMA) && (!(tf->flags & ATA_TFLAG_WRITE))) - buf[i++] = PDC_PKT_READ; - else if (tf->protocol == ATA_PROT_NODATA) - buf[i++] = PDC_PKT_NODATA; - else - buf[i++] = 0; - buf[i++] = 0; /* reserved */ - buf[i++] = portno + 1; /* seq. id */ - buf[i++] = 0xff; /* delay seq. id */ - - /* dimm dma S/G, and next-pkt */ - dw = i >> 2; - if (tf->protocol == ATA_PROT_NODATA) - buf32[dw] = 0; - else - buf32[dw] = cpu_to_le32(dimm_sg); - buf32[dw + 1] = 0; - i += 8; - - if (devno == 0) - dev_reg = ATA_DEVICE_OBS; - else - dev_reg = ATA_DEVICE_OBS | ATA_DEV1; - - /* select device */ - buf[i++] = (1 << 5) | PDC_PKT_CLEAR_BSY | ATA_REG_DEVICE; - buf[i++] = dev_reg; - - /* device control register */ - buf[i++] = (1 << 5) | PDC_REG_DEVCTL; - buf[i++] = tf->ctl; - - return i; -} - -static inline void pdc20621_host_pkt(struct ata_taskfile *tf, u8 *buf, - unsigned int portno) -{ - unsigned int dw; - u32 tmp, *buf32 = (u32 *) buf; - - unsigned int host_sg = PDC_20621_DIMM_BASE + - (PDC_DIMM_WINDOW_STEP * portno) + - PDC_DIMM_HOST_PRD; - unsigned int dimm_sg = PDC_20621_DIMM_BASE + - (PDC_DIMM_WINDOW_STEP * portno) + - PDC_DIMM_HPKT_PRD; - VPRINTK("ENTER, dimm_sg == 0x%x, %d\n", dimm_sg, dimm_sg); - VPRINTK("host_sg == 0x%x, %d\n", host_sg, host_sg); - - dw = PDC_DIMM_HOST_PKT >> 2; - - /* - * Set up Host DMA packet - */ - if ((tf->protocol == ATA_PROT_DMA) && (!(tf->flags & ATA_TFLAG_WRITE))) - tmp = PDC_PKT_READ; - else - tmp = 0; - tmp |= ((portno + 1 + 4) << 16); /* seq. id */ - tmp |= (0xff << 24); /* delay seq. id */ - buf32[dw + 0] = cpu_to_le32(tmp); - buf32[dw + 1] = cpu_to_le32(host_sg); - buf32[dw + 2] = cpu_to_le32(dimm_sg); - buf32[dw + 3] = 0; - - VPRINTK("HOST PKT @ %x == (0x%x 0x%x 0x%x 0x%x)\n", - PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * portno) + - PDC_DIMM_HOST_PKT, - buf32[dw + 0], - buf32[dw + 1], - buf32[dw + 2], - buf32[dw + 3]); -} - -static void pdc20621_dma_prep(struct ata_queued_cmd *qc) -{ - struct scatterlist *sg; - struct ata_port *ap = qc->ap; - struct pdc_port_priv *pp = ap->private_data; - void __iomem *mmio = ap->host_set->mmio_base; - struct pdc_host_priv *hpriv = ap->host_set->private_data; - void __iomem *dimm_mmio = hpriv->dimm_mmio; - unsigned int portno = ap->port_no; - unsigned int i, idx, total_len = 0, sgt_len; - u32 *buf = (u32 *) &pp->dimm_buf[PDC_DIMM_HEADER_SZ]; - - WARN_ON(!(qc->flags & ATA_QCFLAG_DMAMAP)); - - VPRINTK("ata%u: ENTER\n", ap->id); - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - /* - * Build S/G table - */ - idx = 0; - ata_for_each_sg(sg, qc) { - buf[idx++] = cpu_to_le32(sg_dma_address(sg)); - buf[idx++] = cpu_to_le32(sg_dma_len(sg)); - total_len += sg_dma_len(sg); - } - buf[idx - 1] |= cpu_to_le32(ATA_PRD_EOT); - sgt_len = idx * 4; - - /* - * Build ATA, host DMA packets - */ - pdc20621_host_sg(&qc->tf, &pp->dimm_buf[0], portno, total_len); - pdc20621_host_pkt(&qc->tf, &pp->dimm_buf[0], portno); - - pdc20621_ata_sg(&qc->tf, &pp->dimm_buf[0], portno, total_len); - i = pdc20621_ata_pkt(&qc->tf, qc->dev->devno, &pp->dimm_buf[0], portno); - - if (qc->tf.flags & ATA_TFLAG_LBA48) - i = pdc_prep_lba48(&qc->tf, &pp->dimm_buf[0], i); - else - i = pdc_prep_lba28(&qc->tf, &pp->dimm_buf[0], i); - - pdc_pkt_footer(&qc->tf, &pp->dimm_buf[0], i); - - /* copy three S/G tables and two packets to DIMM MMIO window */ - memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP), - &pp->dimm_buf, PDC_DIMM_HEADER_SZ); - memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP) + - PDC_DIMM_HOST_PRD, - &pp->dimm_buf[PDC_DIMM_HEADER_SZ], sgt_len); - - /* force host FIFO dump */ - writel(0x00000001, mmio + PDC_20621_GENERAL_CTL); - - readl(dimm_mmio); /* MMIO PCI posting flush */ - - VPRINTK("ata pkt buf ofs %u, prd size %u, mmio copied\n", i, sgt_len); -} - -static void pdc20621_nodata_prep(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct pdc_port_priv *pp = ap->private_data; - void __iomem *mmio = ap->host_set->mmio_base; - struct pdc_host_priv *hpriv = ap->host_set->private_data; - void __iomem *dimm_mmio = hpriv->dimm_mmio; - unsigned int portno = ap->port_no; - unsigned int i; - - VPRINTK("ata%u: ENTER\n", ap->id); - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - i = pdc20621_ata_pkt(&qc->tf, qc->dev->devno, &pp->dimm_buf[0], portno); - - if (qc->tf.flags & ATA_TFLAG_LBA48) - i = pdc_prep_lba48(&qc->tf, &pp->dimm_buf[0], i); - else - i = pdc_prep_lba28(&qc->tf, &pp->dimm_buf[0], i); - - pdc_pkt_footer(&qc->tf, &pp->dimm_buf[0], i); - - /* copy three S/G tables and two packets to DIMM MMIO window */ - memcpy_toio(dimm_mmio + (portno * PDC_DIMM_WINDOW_STEP), - &pp->dimm_buf, PDC_DIMM_HEADER_SZ); - - /* force host FIFO dump */ - writel(0x00000001, mmio + PDC_20621_GENERAL_CTL); - - readl(dimm_mmio); /* MMIO PCI posting flush */ - - VPRINTK("ata pkt buf ofs %u, mmio copied\n", i); -} - -static void pdc20621_qc_prep(struct ata_queued_cmd *qc) -{ - switch (qc->tf.protocol) { - case ATA_PROT_DMA: - pdc20621_dma_prep(qc); - break; - case ATA_PROT_NODATA: - pdc20621_nodata_prep(qc); - break; - default: - break; - } -} - -static void __pdc20621_push_hdma(struct ata_queued_cmd *qc, - unsigned int seq, - u32 pkt_ofs) -{ - struct ata_port *ap = qc->ap; - struct ata_host_set *host_set = ap->host_set; - void __iomem *mmio = host_set->mmio_base; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4)); - readl(mmio + PDC_20621_SEQCTL + (seq * 4)); /* flush */ - - writel(pkt_ofs, mmio + PDC_HDMA_PKT_SUBMIT); - readl(mmio + PDC_HDMA_PKT_SUBMIT); /* flush */ -} - -static void pdc20621_push_hdma(struct ata_queued_cmd *qc, - unsigned int seq, - u32 pkt_ofs) -{ - struct ata_port *ap = qc->ap; - struct pdc_host_priv *pp = ap->host_set->private_data; - unsigned int idx = pp->hdma_prod & PDC_HDMA_Q_MASK; - - if (!pp->doing_hdma) { - __pdc20621_push_hdma(qc, seq, pkt_ofs); - pp->doing_hdma = 1; - return; - } - - pp->hdma[idx].qc = qc; - pp->hdma[idx].seq = seq; - pp->hdma[idx].pkt_ofs = pkt_ofs; - pp->hdma_prod++; -} - -static void pdc20621_pop_hdma(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct pdc_host_priv *pp = ap->host_set->private_data; - unsigned int idx = pp->hdma_cons & PDC_HDMA_Q_MASK; - - /* if nothing on queue, we're done */ - if (pp->hdma_prod == pp->hdma_cons) { - pp->doing_hdma = 0; - return; - } - - __pdc20621_push_hdma(pp->hdma[idx].qc, pp->hdma[idx].seq, - pp->hdma[idx].pkt_ofs); - pp->hdma_cons++; -} - -#ifdef ATA_VERBOSE_DEBUG -static void pdc20621_dump_hdma(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - unsigned int port_no = ap->port_no; - struct pdc_host_priv *hpriv = ap->host_set->private_data; - void *dimm_mmio = hpriv->dimm_mmio; - - dimm_mmio += (port_no * PDC_DIMM_WINDOW_STEP); - dimm_mmio += PDC_DIMM_HOST_PKT; - - printk(KERN_ERR "HDMA[0] == 0x%08X\n", readl(dimm_mmio)); - printk(KERN_ERR "HDMA[1] == 0x%08X\n", readl(dimm_mmio + 4)); - printk(KERN_ERR "HDMA[2] == 0x%08X\n", readl(dimm_mmio + 8)); - printk(KERN_ERR "HDMA[3] == 0x%08X\n", readl(dimm_mmio + 12)); -} -#else -static inline void pdc20621_dump_hdma(struct ata_queued_cmd *qc) { } -#endif /* ATA_VERBOSE_DEBUG */ - -static void pdc20621_packet_start(struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - struct ata_host_set *host_set = ap->host_set; - unsigned int port_no = ap->port_no; - void __iomem *mmio = host_set->mmio_base; - unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE); - u8 seq = (u8) (port_no + 1); - unsigned int port_ofs; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - VPRINTK("ata%u: ENTER\n", ap->id); - - wmb(); /* flush PRD, pkt writes */ - - port_ofs = PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * port_no); - - /* if writing, we (1) DMA to DIMM, then (2) do ATA command */ - if (rw && qc->tf.protocol == ATA_PROT_DMA) { - seq += 4; - - pdc20621_dump_hdma(qc); - pdc20621_push_hdma(qc, seq, port_ofs + PDC_DIMM_HOST_PKT); - VPRINTK("queued ofs 0x%x (%u), seq %u\n", - port_ofs + PDC_DIMM_HOST_PKT, - port_ofs + PDC_DIMM_HOST_PKT, - seq); - } else { - writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4)); - readl(mmio + PDC_20621_SEQCTL + (seq * 4)); /* flush */ - - writel(port_ofs + PDC_DIMM_ATA_PKT, - (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); - readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); - VPRINTK("submitted ofs 0x%x (%u), seq %u\n", - port_ofs + PDC_DIMM_ATA_PKT, - port_ofs + PDC_DIMM_ATA_PKT, - seq); - } -} - -static unsigned int pdc20621_qc_issue_prot(struct ata_queued_cmd *qc) -{ - switch (qc->tf.protocol) { - case ATA_PROT_DMA: - case ATA_PROT_NODATA: - pdc20621_packet_start(qc); - return 0; - - case ATA_PROT_ATAPI_DMA: - BUG(); - break; - - default: - break; - } - - return ata_qc_issue_prot(qc); -} - -static inline unsigned int pdc20621_host_intr( struct ata_port *ap, - struct ata_queued_cmd *qc, - unsigned int doing_hdma, - void __iomem *mmio) -{ - unsigned int port_no = ap->port_no; - unsigned int port_ofs = - PDC_20621_DIMM_BASE + (PDC_DIMM_WINDOW_STEP * port_no); - u8 status; - unsigned int handled = 0; - - VPRINTK("ENTER\n"); - - if ((qc->tf.protocol == ATA_PROT_DMA) && /* read */ - (!(qc->tf.flags & ATA_TFLAG_WRITE))) { - - /* step two - DMA from DIMM to host */ - if (doing_hdma) { - VPRINTK("ata%u: read hdma, 0x%x 0x%x\n", ap->id, - readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); - /* get drive status; clear intr; complete txn */ - qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); - ata_qc_complete(qc); - pdc20621_pop_hdma(qc); - } - - /* step one - exec ATA command */ - else { - u8 seq = (u8) (port_no + 1 + 4); - VPRINTK("ata%u: read ata, 0x%x 0x%x\n", ap->id, - readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); - - /* submit hdma pkt */ - pdc20621_dump_hdma(qc); - pdc20621_push_hdma(qc, seq, - port_ofs + PDC_DIMM_HOST_PKT); - } - handled = 1; - - } else if (qc->tf.protocol == ATA_PROT_DMA) { /* write */ - - /* step one - DMA from host to DIMM */ - if (doing_hdma) { - u8 seq = (u8) (port_no + 1); - VPRINTK("ata%u: write hdma, 0x%x 0x%x\n", ap->id, - readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); - - /* submit ata pkt */ - writel(0x00000001, mmio + PDC_20621_SEQCTL + (seq * 4)); - readl(mmio + PDC_20621_SEQCTL + (seq * 4)); - writel(port_ofs + PDC_DIMM_ATA_PKT, - (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); - readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); - } - - /* step two - execute ATA command */ - else { - VPRINTK("ata%u: write ata, 0x%x 0x%x\n", ap->id, - readl(mmio + 0x104), readl(mmio + PDC_HDMA_CTLSTAT)); - /* get drive status; clear intr; complete txn */ - qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); - ata_qc_complete(qc); - pdc20621_pop_hdma(qc); - } - handled = 1; - - /* command completion, but no data xfer */ - } else if (qc->tf.protocol == ATA_PROT_NODATA) { - - status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); - DPRINTK("BUS_NODATA (drv_stat 0x%X)\n", status); - qc->err_mask |= ac_err_mask(status); - ata_qc_complete(qc); - handled = 1; - - } else { - ap->stats.idle_irq++; - } - - return handled; -} - -static void pdc20621_irq_clear(struct ata_port *ap) -{ - struct ata_host_set *host_set = ap->host_set; - void __iomem *mmio = host_set->mmio_base; - - mmio += PDC_CHIP0_OFS; - - readl(mmio + PDC_20621_SEQMASK); -} - -static irqreturn_t pdc20621_interrupt (int irq, void *dev_instance, struct pt_regs *regs) -{ - struct ata_host_set *host_set = dev_instance; - struct ata_port *ap; - u32 mask = 0; - unsigned int i, tmp, port_no; - unsigned int handled = 0; - void __iomem *mmio_base; - - VPRINTK("ENTER\n"); - - if (!host_set || !host_set->mmio_base) { - VPRINTK("QUICK EXIT\n"); - return IRQ_NONE; - } - - mmio_base = host_set->mmio_base; - - /* reading should also clear interrupts */ - mmio_base += PDC_CHIP0_OFS; - mask = readl(mmio_base + PDC_20621_SEQMASK); - VPRINTK("mask == 0x%x\n", mask); - - if (mask == 0xffffffff) { - VPRINTK("QUICK EXIT 2\n"); - return IRQ_NONE; - } - mask &= 0xffff; /* only 16 tags possible */ - if (!mask) { - VPRINTK("QUICK EXIT 3\n"); - return IRQ_NONE; - } - - spin_lock(&host_set->lock); - - for (i = 1; i < 9; i++) { - port_no = i - 1; - if (port_no > 3) - port_no -= 4; - if (port_no >= host_set->n_ports) - ap = NULL; - else - ap = host_set->ports[port_no]; - tmp = mask & (1 << i); - VPRINTK("seq %u, port_no %u, ap %p, tmp %x\n", i, port_no, ap, tmp); - if (tmp && ap && - !(ap->flags & ATA_FLAG_DISABLED)) { - struct ata_queued_cmd *qc; - - qc = ata_qc_from_tag(ap, ap->active_tag); - if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) - handled += pdc20621_host_intr(ap, qc, (i > 4), - mmio_base); - } - } - - spin_unlock(&host_set->lock); - - VPRINTK("mask == 0x%x\n", mask); - - VPRINTK("EXIT\n"); - - return IRQ_RETVAL(handled); -} - -static void pdc_eng_timeout(struct ata_port *ap) -{ - u8 drv_stat; - struct ata_host_set *host_set = ap->host_set; - struct ata_queued_cmd *qc; - unsigned long flags; - - DPRINTK("ENTER\n"); - - spin_lock_irqsave(&host_set->lock, flags); - - qc = ata_qc_from_tag(ap, ap->active_tag); - - switch (qc->tf.protocol) { - case ATA_PROT_DMA: - case ATA_PROT_NODATA: - ata_port_printk(ap, KERN_ERR, "command timeout\n"); - qc->err_mask |= __ac_err_mask(ata_wait_idle(ap)); - break; - - default: - drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); - - ata_port_printk(ap, KERN_ERR, - "unknown timeout, cmd 0x%x stat 0x%x\n", - qc->tf.command, drv_stat); - - qc->err_mask |= ac_err_mask(drv_stat); - break; - } - - spin_unlock_irqrestore(&host_set->lock, flags); - ata_eh_qc_complete(qc); - DPRINTK("EXIT\n"); -} - -static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf) -{ - WARN_ON (tf->protocol == ATA_PROT_DMA || - tf->protocol == ATA_PROT_NODATA); - ata_tf_load(ap, tf); -} - - -static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf) -{ - WARN_ON (tf->protocol == ATA_PROT_DMA || - tf->protocol == ATA_PROT_NODATA); - ata_exec_command(ap, tf); -} - - -static void pdc_sata_setup_port(struct ata_ioports *port, unsigned long base) -{ - port->cmd_addr = base; - port->data_addr = base; - port->feature_addr = - port->error_addr = base + 0x4; - port->nsect_addr = base + 0x8; - port->lbal_addr = base + 0xc; - port->lbam_addr = base + 0x10; - port->lbah_addr = base + 0x14; - port->device_addr = base + 0x18; - port->command_addr = - port->status_addr = base + 0x1c; - port->altstatus_addr = - port->ctl_addr = base + 0x38; -} - - -#ifdef ATA_VERBOSE_DEBUG -static void pdc20621_get_from_dimm(struct ata_probe_ent *pe, void *psource, - u32 offset, u32 size) -{ - u32 window_size; - u16 idx; - u8 page_mask; - long dist; - void __iomem *mmio = pe->mmio_base; - struct pdc_host_priv *hpriv = pe->private_data; - void __iomem *dimm_mmio = hpriv->dimm_mmio; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - page_mask = 0x00; - window_size = 0x2000 * 4; /* 32K byte uchar size */ - idx = (u16) (offset / window_size); - - writel(0x01, mmio + PDC_GENERAL_CTLR); - readl(mmio + PDC_GENERAL_CTLR); - writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); - readl(mmio + PDC_DIMM_WINDOW_CTLR); - - offset -= (idx * window_size); - idx++; - dist = ((long) (window_size - (offset + size))) >= 0 ? size : - (long) (window_size - offset); - memcpy_fromio((char *) psource, (char *) (dimm_mmio + offset / 4), - dist); - - psource += dist; - size -= dist; - for (; (long) size >= (long) window_size ;) { - writel(0x01, mmio + PDC_GENERAL_CTLR); - readl(mmio + PDC_GENERAL_CTLR); - writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); - readl(mmio + PDC_DIMM_WINDOW_CTLR); - memcpy_fromio((char *) psource, (char *) (dimm_mmio), - window_size / 4); - psource += window_size; - size -= window_size; - idx ++; - } - - if (size) { - writel(0x01, mmio + PDC_GENERAL_CTLR); - readl(mmio + PDC_GENERAL_CTLR); - writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); - readl(mmio + PDC_DIMM_WINDOW_CTLR); - memcpy_fromio((char *) psource, (char *) (dimm_mmio), - size / 4); - } -} -#endif - - -static void pdc20621_put_to_dimm(struct ata_probe_ent *pe, void *psource, - u32 offset, u32 size) -{ - u32 window_size; - u16 idx; - u8 page_mask; - long dist; - void __iomem *mmio = pe->mmio_base; - struct pdc_host_priv *hpriv = pe->private_data; - void __iomem *dimm_mmio = hpriv->dimm_mmio; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - page_mask = 0x00; - window_size = 0x2000 * 4; /* 32K byte uchar size */ - idx = (u16) (offset / window_size); - - writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); - readl(mmio + PDC_DIMM_WINDOW_CTLR); - offset -= (idx * window_size); - idx++; - dist = ((long)(s32)(window_size - (offset + size))) >= 0 ? size : - (long) (window_size - offset); - memcpy_toio(dimm_mmio + offset / 4, psource, dist); - writel(0x01, mmio + PDC_GENERAL_CTLR); - readl(mmio + PDC_GENERAL_CTLR); - - psource += dist; - size -= dist; - for (; (long) size >= (long) window_size ;) { - writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); - readl(mmio + PDC_DIMM_WINDOW_CTLR); - memcpy_toio(dimm_mmio, psource, window_size / 4); - writel(0x01, mmio + PDC_GENERAL_CTLR); - readl(mmio + PDC_GENERAL_CTLR); - psource += window_size; - size -= window_size; - idx ++; - } - - if (size) { - writel(((idx) << page_mask), mmio + PDC_DIMM_WINDOW_CTLR); - readl(mmio + PDC_DIMM_WINDOW_CTLR); - memcpy_toio(dimm_mmio, psource, size / 4); - writel(0x01, mmio + PDC_GENERAL_CTLR); - readl(mmio + PDC_GENERAL_CTLR); - } -} - - -static unsigned int pdc20621_i2c_read(struct ata_probe_ent *pe, u32 device, - u32 subaddr, u32 *pdata) -{ - void __iomem *mmio = pe->mmio_base; - u32 i2creg = 0; - u32 status; - u32 count =0; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - i2creg |= device << 24; - i2creg |= subaddr << 16; - - /* Set the device and subaddress */ - writel(i2creg, mmio + PDC_I2C_ADDR_DATA_OFFSET); - readl(mmio + PDC_I2C_ADDR_DATA_OFFSET); - - /* Write Control to perform read operation, mask int */ - writel(PDC_I2C_READ | PDC_I2C_START | PDC_I2C_MASK_INT, - mmio + PDC_I2C_CONTROL_OFFSET); - - for (count = 0; count <= 1000; count ++) { - status = readl(mmio + PDC_I2C_CONTROL_OFFSET); - if (status & PDC_I2C_COMPLETE) { - status = readl(mmio + PDC_I2C_ADDR_DATA_OFFSET); - break; - } else if (count == 1000) - return 0; - } - - *pdata = (status >> 8) & 0x000000ff; - return 1; -} - - -static int pdc20621_detect_dimm(struct ata_probe_ent *pe) -{ - u32 data=0 ; - if (pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, - PDC_DIMM_SPD_SYSTEM_FREQ, &data)) { - if (data == 100) - return 100; - } else - return 0; - - if (pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, 9, &data)) { - if(data <= 0x75) - return 133; - } else - return 0; - - return 0; -} - - -static int pdc20621_prog_dimm0(struct ata_probe_ent *pe) -{ - u32 spd0[50]; - u32 data = 0; - int size, i; - u8 bdimmsize; - void __iomem *mmio = pe->mmio_base; - static const struct { - unsigned int reg; - unsigned int ofs; - } pdc_i2c_read_data [] = { - { PDC_DIMM_SPD_TYPE, 11 }, - { PDC_DIMM_SPD_FRESH_RATE, 12 }, - { PDC_DIMM_SPD_COLUMN_NUM, 4 }, - { PDC_DIMM_SPD_ATTRIBUTE, 21 }, - { PDC_DIMM_SPD_ROW_NUM, 3 }, - { PDC_DIMM_SPD_BANK_NUM, 17 }, - { PDC_DIMM_SPD_MODULE_ROW, 5 }, - { PDC_DIMM_SPD_ROW_PRE_CHARGE, 27 }, - { PDC_DIMM_SPD_ROW_ACTIVE_DELAY, 28 }, - { PDC_DIMM_SPD_RAS_CAS_DELAY, 29 }, - { PDC_DIMM_SPD_ACTIVE_PRECHARGE, 30 }, - { PDC_DIMM_SPD_CAS_LATENCY, 18 }, - }; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - for(i=0; i<ARRAY_SIZE(pdc_i2c_read_data); i++) - pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, - pdc_i2c_read_data[i].reg, - &spd0[pdc_i2c_read_data[i].ofs]); - - data |= (spd0[4] - 8) | ((spd0[21] != 0) << 3) | ((spd0[3]-11) << 4); - data |= ((spd0[17] / 4) << 6) | ((spd0[5] / 2) << 7) | - ((((spd0[27] + 9) / 10) - 1) << 8) ; - data |= (((((spd0[29] > spd0[28]) - ? spd0[29] : spd0[28]) + 9) / 10) - 1) << 10; - data |= ((spd0[30] - spd0[29] + 9) / 10 - 2) << 12; - - if (spd0[18] & 0x08) - data |= ((0x03) << 14); - else if (spd0[18] & 0x04) - data |= ((0x02) << 14); - else if (spd0[18] & 0x01) - data |= ((0x01) << 14); - else - data |= (0 << 14); - - /* - Calculate the size of bDIMMSize (power of 2) and - merge the DIMM size by program start/end address. - */ - - bdimmsize = spd0[4] + (spd0[5] / 2) + spd0[3] + (spd0[17] / 2) + 3; - size = (1 << bdimmsize) >> 20; /* size = xxx(MB) */ - data |= (((size / 16) - 1) << 16); - data |= (0 << 23); - data |= 8; - writel(data, mmio + PDC_DIMM0_CONTROL_OFFSET); - readl(mmio + PDC_DIMM0_CONTROL_OFFSET); - return size; -} - - -static unsigned int pdc20621_prog_dimm_global(struct ata_probe_ent *pe) -{ - u32 data, spd0; - int error, i; - void __iomem *mmio = pe->mmio_base; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - /* - Set To Default : DIMM Module Global Control Register (0x022259F1) - DIMM Arbitration Disable (bit 20) - DIMM Data/Control Output Driving Selection (bit12 - bit15) - Refresh Enable (bit 17) - */ - - data = 0x022259F1; - writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET); - readl(mmio + PDC_SDRAM_CONTROL_OFFSET); - - /* Turn on for ECC */ - pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, - PDC_DIMM_SPD_TYPE, &spd0); - if (spd0 == 0x02) { - data |= (0x01 << 16); - writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET); - readl(mmio + PDC_SDRAM_CONTROL_OFFSET); - printk(KERN_ERR "Local DIMM ECC Enabled\n"); - } - - /* DIMM Initialization Select/Enable (bit 18/19) */ - data &= (~(1<<18)); - data |= (1<<19); - writel(data, mmio + PDC_SDRAM_CONTROL_OFFSET); - - error = 1; - for (i = 1; i <= 10; i++) { /* polling ~5 secs */ - data = readl(mmio + PDC_SDRAM_CONTROL_OFFSET); - if (!(data & (1<<19))) { - error = 0; - break; - } - msleep(i*100); - } - return error; -} - - -static unsigned int pdc20621_dimm_init(struct ata_probe_ent *pe) -{ - int speed, size, length; - u32 addr,spd0,pci_status; - u32 tmp=0; - u32 time_period=0; - u32 tcount=0; - u32 ticks=0; - u32 clock=0; - u32 fparam=0; - void __iomem *mmio = pe->mmio_base; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - /* Initialize PLL based upon PCI Bus Frequency */ - - /* Initialize Time Period Register */ - writel(0xffffffff, mmio + PDC_TIME_PERIOD); - time_period = readl(mmio + PDC_TIME_PERIOD); - VPRINTK("Time Period Register (0x40): 0x%x\n", time_period); - - /* Enable timer */ - writel(0x00001a0, mmio + PDC_TIME_CONTROL); - readl(mmio + PDC_TIME_CONTROL); - - /* Wait 3 seconds */ - msleep(3000); - - /* - When timer is enabled, counter is decreased every internal - clock cycle. - */ - - tcount = readl(mmio + PDC_TIME_COUNTER); - VPRINTK("Time Counter Register (0x44): 0x%x\n", tcount); - - /* - If SX4 is on PCI-X bus, after 3 seconds, the timer counter - register should be >= (0xffffffff - 3x10^8). - */ - if(tcount >= PCI_X_TCOUNT) { - ticks = (time_period - tcount); - VPRINTK("Num counters 0x%x (%d)\n", ticks, ticks); - - clock = (ticks / 300000); - VPRINTK("10 * Internal clk = 0x%x (%d)\n", clock, clock); - - clock = (clock * 33); - VPRINTK("10 * Internal clk * 33 = 0x%x (%d)\n", clock, clock); - - /* PLL F Param (bit 22:16) */ - fparam = (1400000 / clock) - 2; - VPRINTK("PLL F Param: 0x%x (%d)\n", fparam, fparam); - - /* OD param = 0x2 (bit 31:30), R param = 0x5 (bit 29:25) */ - pci_status = (0x8a001824 | (fparam << 16)); - } else - pci_status = PCI_PLL_INIT; - - /* Initialize PLL. */ - VPRINTK("pci_status: 0x%x\n", pci_status); - writel(pci_status, mmio + PDC_CTL_STATUS); - readl(mmio + PDC_CTL_STATUS); - - /* - Read SPD of DIMM by I2C interface, - and program the DIMM Module Controller. - */ - if (!(speed = pdc20621_detect_dimm(pe))) { - printk(KERN_ERR "Detect Local DIMM Fail\n"); - return 1; /* DIMM error */ - } - VPRINTK("Local DIMM Speed = %d\n", speed); - - /* Programming DIMM0 Module Control Register (index_CID0:80h) */ - size = pdc20621_prog_dimm0(pe); - VPRINTK("Local DIMM Size = %dMB\n",size); - - /* Programming DIMM Module Global Control Register (index_CID0:88h) */ - if (pdc20621_prog_dimm_global(pe)) { - printk(KERN_ERR "Programming DIMM Module Global Control Register Fail\n"); - return 1; - } - -#ifdef ATA_VERBOSE_DEBUG - { - u8 test_parttern1[40] = {0x55,0xAA,'P','r','o','m','i','s','e',' ', - 'N','o','t',' ','Y','e','t',' ','D','e','f','i','n','e','d',' ', - '1','.','1','0', - '9','8','0','3','1','6','1','2',0,0}; - u8 test_parttern2[40] = {0}; - - pdc20621_put_to_dimm(pe, (void *) test_parttern2, 0x10040, 40); - pdc20621_put_to_dimm(pe, (void *) test_parttern2, 0x40, 40); - - pdc20621_put_to_dimm(pe, (void *) test_parttern1, 0x10040, 40); - pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x40, 40); - printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], - test_parttern2[1], &(test_parttern2[2])); - pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x10040, - 40); - printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], - test_parttern2[1], &(test_parttern2[2])); - - pdc20621_put_to_dimm(pe, (void *) test_parttern1, 0x40, 40); - pdc20621_get_from_dimm(pe, (void *) test_parttern2, 0x40, 40); - printk(KERN_ERR "%x, %x, %s\n", test_parttern2[0], - test_parttern2[1], &(test_parttern2[2])); - } -#endif - - /* ECC initiliazation. */ - - pdc20621_i2c_read(pe, PDC_DIMM0_SPD_DEV_ADDRESS, - PDC_DIMM_SPD_TYPE, &spd0); - if (spd0 == 0x02) { - VPRINTK("Start ECC initialization\n"); - addr = 0; - length = size * 1024 * 1024; - while (addr < length) { - pdc20621_put_to_dimm(pe, (void *) &tmp, addr, - sizeof(u32)); - addr += sizeof(u32); - } - VPRINTK("Finish ECC initialization\n"); - } - return 0; -} - - -static void pdc_20621_init(struct ata_probe_ent *pe) -{ - u32 tmp; - void __iomem *mmio = pe->mmio_base; - - /* hard-code chip #0 */ - mmio += PDC_CHIP0_OFS; - - /* - * Select page 0x40 for our 32k DIMM window - */ - tmp = readl(mmio + PDC_20621_DIMM_WINDOW) & 0xffff0000; - tmp |= PDC_PAGE_WINDOW; /* page 40h; arbitrarily selected */ - writel(tmp, mmio + PDC_20621_DIMM_WINDOW); - - /* - * Reset Host DMA - */ - tmp = readl(mmio + PDC_HDMA_CTLSTAT); - tmp |= PDC_RESET; - writel(tmp, mmio + PDC_HDMA_CTLSTAT); - readl(mmio + PDC_HDMA_CTLSTAT); /* flush */ - - udelay(10); - - tmp = readl(mmio + PDC_HDMA_CTLSTAT); - tmp &= ~PDC_RESET; - writel(tmp, mmio + PDC_HDMA_CTLSTAT); - readl(mmio + PDC_HDMA_CTLSTAT); /* flush */ -} - -static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) -{ - static int printed_version; - struct ata_probe_ent *probe_ent = NULL; - unsigned long base; - void __iomem *mmio_base; - void __iomem *dimm_mmio = NULL; - struct pdc_host_priv *hpriv = NULL; - unsigned int board_idx = (unsigned int) ent->driver_data; - int pci_dev_busy = 0; - int rc; - - if (!printed_version++) - dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); - - rc = pci_enable_device(pdev); - if (rc) - return rc; - - rc = pci_request_regions(pdev, DRV_NAME); - if (rc) { - pci_dev_busy = 1; - goto err_out; - } - - rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - goto err_out_regions; - rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); - if (rc) - goto err_out_regions; - - probe_ent = kmalloc(sizeof(*probe_ent), GFP_KERNEL); - if (probe_ent == NULL) { - rc = -ENOMEM; - goto err_out_regions; - } - - memset(probe_ent, 0, sizeof(*probe_ent)); - probe_ent->dev = pci_dev_to_dev(pdev); - INIT_LIST_HEAD(&probe_ent->node); - - mmio_base = pci_iomap(pdev, 3, 0); - if (mmio_base == NULL) { - rc = -ENOMEM; - goto err_out_free_ent; - } - base = (unsigned long) mmio_base; - - hpriv = kmalloc(sizeof(*hpriv), GFP_KERNEL); - if (!hpriv) { - rc = -ENOMEM; - goto err_out_iounmap; - } - memset(hpriv, 0, sizeof(*hpriv)); - - dimm_mmio = pci_iomap(pdev, 4, 0); - if (!dimm_mmio) { - kfree(hpriv); - rc = -ENOMEM; - goto err_out_iounmap; - } - - hpriv->dimm_mmio = dimm_mmio; - - probe_ent->sht = pdc_port_info[board_idx].sht; - probe_ent->host_flags = pdc_port_info[board_idx].host_flags; - probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask; - probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask; - probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask; - probe_ent->port_ops = pdc_port_info[board_idx].port_ops; - - probe_ent->irq = pdev->irq; - probe_ent->irq_flags = IRQF_SHARED; - probe_ent->mmio_base = mmio_base; - - probe_ent->private_data = hpriv; - base += PDC_CHIP0_OFS; - - probe_ent->n_ports = 4; - pdc_sata_setup_port(&probe_ent->port[0], base + 0x200); - pdc_sata_setup_port(&probe_ent->port[1], base + 0x280); - pdc_sata_setup_port(&probe_ent->port[2], base + 0x300); - pdc_sata_setup_port(&probe_ent->port[3], base + 0x380); - - pci_set_master(pdev); - - /* initialize adapter */ - /* initialize local dimm */ - if (pdc20621_dimm_init(probe_ent)) { - rc = -ENOMEM; - goto err_out_iounmap_dimm; - } - pdc_20621_init(probe_ent); - - /* FIXME: check ata_device_add return value */ - ata_device_add(probe_ent); - kfree(probe_ent); - - return 0; - -err_out_iounmap_dimm: /* only get to this label if 20621 */ - kfree(hpriv); - pci_iounmap(pdev, dimm_mmio); -err_out_iounmap: - pci_iounmap(pdev, mmio_base); -err_out_free_ent: - kfree(probe_ent); -err_out_regions: - pci_release_regions(pdev); -err_out: - if (!pci_dev_busy) - pci_disable_device(pdev); - return rc; -} - - -static int __init pdc_sata_init(void) -{ - return pci_module_init(&pdc_sata_pci_driver); -} - - -static void __exit pdc_sata_exit(void) -{ - pci_unregister_driver(&pdc_sata_pci_driver); -} - - -MODULE_AUTHOR("Jeff Garzik"); -MODULE_DESCRIPTION("Promise SATA low-level driver"); -MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, pdc_sata_pci_tbl); -MODULE_VERSION(DRV_VERSION); - -module_init(pdc_sata_init); -module_exit(pdc_sata_exit); |