--- /dev/null
+/*
+ * Copyright (C) Excito Elektronik i Skåne AB, 2010.
+ * Author: Tor Krill <tor@excito.com>
+ *
+ * Copyright (C) 2015 Stefan Roese <sr@denx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/*
+ * This driver supports the SATA controller of some Mavell SoC's.
+ * Here a (most likely incomplete) list of the supported SoC's:
+ * - Kirkwood
+ * - Armada 370
+ * - Armada XP
+ *
+ * This driver implementation is an alternative to the already available
+ * driver via the "ide" commands interface (drivers/block/mvsata_ide.c).
+ * But this driver only supports PIO mode and as this new driver also
+ * supports transfer via DMA, its much faster.
+ *
+ * Please note, that the newer SoC's (e.g. Armada 38x) are not supported
+ * by this driver. As they have an AHCI compatible SATA controller
+ * integrated.
+ */
+
+/*
+ * TODO:
+ * Better error recovery
+ * No support for using PRDs (Thus max 64KB transfers)
+ * No NCQ support
+ * No port multiplier support
+ */
+
+#include <common.h>
+#include <fis.h>
+#include <libata.h>
+#include <malloc.h>
+#include <sata.h>
+#include <asm/errno.h>
+#include <asm/io.h>
+#include <linux/mbus.h>
+
+#if defined(CONFIG_KIRKWOOD)
+#include <asm/arch/kirkwood.h>
+#define SATAHC_BASE KW_SATA_BASE
+#else
+#include <asm/arch/soc.h>
+#define SATAHC_BASE MVEBU_AXP_SATA_BASE
+#endif
+
+#define SATA0_BASE (SATAHC_BASE + 0x2000)
+#define SATA1_BASE (SATAHC_BASE + 0x4000)
+
+/* EDMA registers */
+#define EDMA_CFG 0x000
+#define EDMA_CFG_NCQ (1 << 5)
+#define EDMA_CFG_EQUE (1 << 9)
+#define EDMA_TIMER 0x004
+#define EDMA_IECR 0x008
+#define EDMA_IEMR 0x00c
+#define EDMA_RQBA_HI 0x010
+#define EDMA_RQIPR 0x014
+#define EDMA_RQIPR_IPMASK (0x1f << 5)
+#define EDMA_RQIPR_IPSHIFT 5
+#define EDMA_RQOPR 0x018
+#define EDMA_RQOPR_OPMASK (0x1f << 5)
+#define EDMA_RQOPR_OPSHIFT 5
+#define EDMA_RSBA_HI 0x01c
+#define EDMA_RSIPR 0x020
+#define EDMA_RSIPR_IPMASK (0x1f << 3)
+#define EDMA_RSIPR_IPSHIFT 3
+#define EDMA_RSOPR 0x024
+#define EDMA_RSOPR_OPMASK (0x1f << 3)
+#define EDMA_RSOPR_OPSHIFT 3
+#define EDMA_CMD 0x028
+#define EDMA_CMD_ENEDMA (0x01 << 0)
+#define EDMA_CMD_DISEDMA (0x01 << 1)
+#define EDMA_CMD_ATARST (0x01 << 2)
+#define EDMA_CMD_FREEZE (0x01 << 4)
+#define EDMA_TEST_CTL 0x02c
+#define EDMA_STATUS 0x030
+#define EDMA_IORTO 0x034
+#define EDMA_CDTR 0x040
+#define EDMA_HLTCND 0x060
+#define EDMA_NTSR 0x094
+
+/* Basic DMA registers */
+#define BDMA_CMD 0x224
+#define BDMA_STATUS 0x228
+#define BDMA_DTLB 0x22c
+#define BDMA_DTHB 0x230
+#define BDMA_DRL 0x234
+#define BDMA_DRH 0x238
+
+/* SATA Interface registers */
+#define SIR_ICFG 0x050
+#define SIR_CFG_GEN2EN (0x1 << 7)
+#define SIR_PLL_CFG 0x054
+#define SIR_SSTATUS 0x300
+#define SSTATUS_DET_MASK (0x0f << 0)
+#define SIR_SERROR 0x304
+#define SIR_SCONTROL 0x308
+#define SIR_SCONTROL_DETEN (0x01 << 0)
+#define SIR_LTMODE 0x30c
+#define SIR_LTMODE_NELBE (0x01 << 7)
+#define SIR_PHYMODE3 0x310
+#define SIR_PHYMODE4 0x314
+#define SIR_PHYMODE1 0x32c
+#define SIR_PHYMODE2 0x330
+#define SIR_BIST_CTRL 0x334
+#define SIR_BIST_DW1 0x338
+#define SIR_BIST_DW2 0x33c
+#define SIR_SERR_IRQ_MASK 0x340
+#define SIR_SATA_IFCTRL 0x344
+#define SIR_SATA_TESTCTRL 0x348
+#define SIR_SATA_IFSTATUS 0x34c
+#define SIR_VEND_UNIQ 0x35c
+#define SIR_FIS_CFG 0x360
+#define SIR_FIS_IRQ_CAUSE 0x364
+#define SIR_FIS_IRQ_MASK 0x368
+#define SIR_FIS_DWORD0 0x370
+#define SIR_FIS_DWORD1 0x374
+#define SIR_FIS_DWORD2 0x378
+#define SIR_FIS_DWORD3 0x37c
+#define SIR_FIS_DWORD4 0x380
+#define SIR_FIS_DWORD5 0x384
+#define SIR_FIS_DWORD6 0x388
+#define SIR_PHYM9_GEN2 0x398
+#define SIR_PHYM9_GEN1 0x39c
+#define SIR_PHY_CFG 0x3a0
+#define SIR_PHYCTL 0x3a4
+#define SIR_PHYM10 0x3a8
+#define SIR_PHYM12 0x3b0
+
+/* Shadow registers */
+#define PIO_DATA 0x100
+#define PIO_ERR_FEATURES 0x104
+#define PIO_SECTOR_COUNT 0x108
+#define PIO_LBA_LOW 0x10c
+#define PIO_LBA_MID 0x110
+#define PIO_LBA_HI 0x114
+#define PIO_DEVICE 0x118
+#define PIO_CMD_STATUS 0x11c
+#define PIO_STATUS_ERR (0x01 << 0)
+#define PIO_STATUS_DRQ (0x01 << 3)
+#define PIO_STATUS_DF (0x01 << 5)
+#define PIO_STATUS_DRDY (0x01 << 6)
+#define PIO_STATUS_BSY (0x01 << 7)
+#define PIO_CTRL_ALTSTAT 0x120
+
+/* SATAHC arbiter registers */
+#define SATAHC_CFG 0x000
+#define SATAHC_RQOP 0x004
+#define SATAHC_RQIP 0x008
+#define SATAHC_ICT 0x00c
+#define SATAHC_ITT 0x010
+#define SATAHC_ICR 0x014
+#define SATAHC_ICR_PORT0 (0x01 << 0)
+#define SATAHC_ICR_PORT1 (0x01 << 1)
+#define SATAHC_MIC 0x020
+#define SATAHC_MIM 0x024
+#define SATAHC_LED_CFG 0x02c
+
+#define REQUEST_QUEUE_SIZE 32
+#define RESPONSE_QUEUE_SIZE REQUEST_QUEUE_SIZE
+
+struct crqb {
+ u32 dtb_low; /* DW0 */
+ u32 dtb_high; /* DW1 */
+ u32 control_flags; /* DW2 */
+ u32 drb_count; /* DW3 */
+ u32 ata_cmd_feat; /* DW4 */
+ u32 ata_addr; /* DW5 */
+ u32 ata_addr_exp; /* DW6 */
+ u32 ata_sect_count; /* DW7 */
+};
+
+#define CRQB_ALIGN 0x400
+
+#define CRQB_CNTRLFLAGS_DIR (0x01 << 0)
+#define CRQB_CNTRLFLAGS_DQTAGMASK (0x1f << 1)
+#define CRQB_CNTRLFLAGS_DQTAGSHIFT 1
+#define CRQB_CNTRLFLAGS_PMPORTMASK (0x0f << 12)
+#define CRQB_CNTRLFLAGS_PMPORTSHIFT 12
+#define CRQB_CNTRLFLAGS_PRDMODE (0x01 << 16)
+#define CRQB_CNTRLFLAGS_HQTAGMASK (0x1f << 17)
+#define CRQB_CNTRLFLAGS_HQTAGSHIFT 17
+
+#define CRQB_CMDFEAT_CMDMASK (0xff << 16)
+#define CRQB_CMDFEAT_CMDSHIFT 16
+#define CRQB_CMDFEAT_FEATMASK (0xff << 16)
+#define CRQB_CMDFEAT_FEATSHIFT 24
+
+#define CRQB_ADDR_LBA_LOWMASK (0xff << 0)
+#define CRQB_ADDR_LBA_LOWSHIFT 0
+#define CRQB_ADDR_LBA_MIDMASK (0xff << 8)
+#define CRQB_ADDR_LBA_MIDSHIFT 8
+#define CRQB_ADDR_LBA_HIGHMASK (0xff << 16)
+#define CRQB_ADDR_LBA_HIGHSHIFT 16
+#define CRQB_ADDR_DEVICE_MASK (0xff << 24)
+#define CRQB_ADDR_DEVICE_SHIFT 24
+
+#define CRQB_ADDR_LBA_LOW_EXP_MASK (0xff << 0)
+#define CRQB_ADDR_LBA_LOW_EXP_SHIFT 0
+#define CRQB_ADDR_LBA_MID_EXP_MASK (0xff << 8)
+#define CRQB_ADDR_LBA_MID_EXP_SHIFT 8
+#define CRQB_ADDR_LBA_HIGH_EXP_MASK (0xff << 16)
+#define CRQB_ADDR_LBA_HIGH_EXP_SHIFT 16
+#define CRQB_ADDR_FEATURE_EXP_MASK (0xff << 24)
+#define CRQB_ADDR_FEATURE_EXP_SHIFT 24
+
+#define CRQB_SECTCOUNT_COUNT_MASK (0xff << 0)
+#define CRQB_SECTCOUNT_COUNT_SHIFT 0
+#define CRQB_SECTCOUNT_COUNT_EXP_MASK (0xff << 8)
+#define CRQB_SECTCOUNT_COUNT_EXP_SHIFT 8
+
+#define MVSATA_WIN_CONTROL(w) (MVEBU_AXP_SATA_BASE + 0x30 + ((w) << 4))
+#define MVSATA_WIN_BASE(w) (MVEBU_AXP_SATA_BASE + 0x34 + ((w) << 4))
+
+struct eprd {
+ u32 phyaddr_low;
+ u32 bytecount_eot;
+ u32 phyaddr_hi;
+ u32 reserved;
+};
+
+#define EPRD_PHYADDR_MASK 0xfffffffe
+#define EPRD_BYTECOUNT_MASK 0x0000ffff
+#define EPRD_EOT (0x01 << 31)
+
+struct crpb {
+ u32 id;
+ u32 flags;
+ u32 timestamp;
+};
+
+#define CRPB_ALIGN 0x100
+
+#define READ_CMD 0
+#define WRITE_CMD 1
+
+/*
+ * Since we don't use PRDs yet max transfer size
+ * is 64KB
+ */
+#define MV_ATA_MAX_SECTORS (65535 / ATA_SECT_SIZE)
+
+/* Keep track if hw is initialized or not */
+static u32 hw_init;
+
+struct mv_priv {
+ char name[12];
+ u32 link;
+ u32 regbase;
+ u32 queue_depth;
+ u16 pio;
+ u16 mwdma;
+ u16 udma;
+
+ void *crqb_alloc;
+ struct crqb *request;
+
+ void *crpb_alloc;
+ struct crpb *response;
+};
+
+static int ata_wait_register(u32 *addr, u32 mask, u32 val, u32 timeout_msec)
+{
+ ulong start;
+
+ start = get_timer(0);
+ do {
+ if ((in_le32(addr) & mask) == val)
+ return 0;
+ } while (get_timer(start) < timeout_msec);
+
+ return -ETIMEDOUT;
+}
+
+/* Cut from sata_mv in linux kernel */
+static int mv_stop_edma_engine(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ int i;
+
+ /* Disable eDMA. The disable bit auto clears. */
+ out_le32(priv->regbase + EDMA_CMD, EDMA_CMD_DISEDMA);
+
+ /* Wait for the chip to confirm eDMA is off. */
+ for (i = 10000; i > 0; i--) {
+ u32 reg = in_le32(priv->regbase + EDMA_CMD);
+ if (!(reg & EDMA_CMD_ENEDMA)) {
+ debug("EDMA stop on port %d succesful\n", port);
+ return 0;
+ }
+ udelay(10);
+ }
+ debug("EDMA stop on port %d failed\n", port);
+ return -1;
+}
+
+static int mv_start_edma_engine(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ u32 tmp;
+
+ /* Check preconditions */
+ tmp = in_le32(priv->regbase + SIR_SSTATUS);
+ if ((tmp & SSTATUS_DET_MASK) != 0x03) {
+ printf("Device error on port: %d\n", port);
+ return -1;
+ }
+
+ tmp = in_le32(priv->regbase + PIO_CMD_STATUS);
+ if (tmp & (ATA_BUSY | ATA_DRQ)) {
+ printf("Device not ready on port: %d\n", port);
+ return -1;
+ }
+
+ /* Clear interrupt cause */
+ out_le32(priv->regbase + EDMA_IECR, 0x0);
+
+ tmp = in_le32(SATAHC_BASE + SATAHC_ICR);
+ tmp &= ~(port == 0 ? SATAHC_ICR_PORT0 : SATAHC_ICR_PORT1);
+ out_le32(SATAHC_BASE + SATAHC_ICR, tmp);
+
+ /* Configure edma operation */
+ tmp = in_le32(priv->regbase + EDMA_CFG);
+ tmp &= ~EDMA_CFG_NCQ; /* No NCQ */
+ tmp &= ~EDMA_CFG_EQUE; /* Dont queue operations */
+ out_le32(priv->regbase + EDMA_CFG, tmp);
+
+ out_le32(priv->regbase + SIR_FIS_IRQ_CAUSE, 0x0);
+
+ /* Configure fis, set all to no-wait for now */
+ out_le32(priv->regbase + SIR_FIS_CFG, 0x0);
+
+ /* Setup request queue */
+ out_le32(priv->regbase + EDMA_RQBA_HI, 0x0);
+ out_le32(priv->regbase + EDMA_RQIPR, priv->request);
+ out_le32(priv->regbase + EDMA_RQOPR, 0x0);
+
+ /* Setup response queue */
+ out_le32(priv->regbase + EDMA_RSBA_HI, 0x0);
+ out_le32(priv->regbase + EDMA_RSOPR, priv->response);
+ out_le32(priv->regbase + EDMA_RSIPR, 0x0);
+
+ /* Start edma */
+ out_le32(priv->regbase + EDMA_CMD, EDMA_CMD_ENEDMA);
+
+ return 0;
+}
+
+static int mv_reset_channel(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+
+ /* Make sure edma is stopped */
+ mv_stop_edma_engine(port);
+
+ out_le32(priv->regbase + EDMA_CMD, EDMA_CMD_ATARST);
+ udelay(25); /* allow reset propagation */
+ out_le32(priv->regbase + EDMA_CMD, 0);
+ mdelay(10);
+
+ return 0;
+}
+
+static void mv_reset_port(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+
+ mv_reset_channel(port);
+
+ out_le32(priv->regbase + EDMA_CMD, 0x0);
+ out_le32(priv->regbase + EDMA_CFG, 0x101f);
+ out_le32(priv->regbase + EDMA_IECR, 0x0);
+ out_le32(priv->regbase + EDMA_IEMR, 0x0);
+ out_le32(priv->regbase + EDMA_RQBA_HI, 0x0);
+ out_le32(priv->regbase + EDMA_RQIPR, 0x0);
+ out_le32(priv->regbase + EDMA_RQOPR, 0x0);
+ out_le32(priv->regbase + EDMA_RSBA_HI, 0x0);
+ out_le32(priv->regbase + EDMA_RSIPR, 0x0);
+ out_le32(priv->regbase + EDMA_RSOPR, 0x0);
+ out_le32(priv->regbase + EDMA_IORTO, 0xfa);
+}
+
+static void mv_reset_one_hc(void)
+{
+ out_le32(SATAHC_BASE + SATAHC_ICT, 0x00);
+ out_le32(SATAHC_BASE + SATAHC_ITT, 0x00);
+ out_le32(SATAHC_BASE + SATAHC_ICR, 0x00);
+}
+
+static int probe_port(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ int tries, tries2, set15 = 0;
+ u32 tmp;
+
+ debug("Probe port: %d\n", port);
+
+ for (tries = 0; tries < 2; tries++) {
+ /* Clear SError */
+ out_le32(priv->regbase + SIR_SERROR, 0x0);
+
+ /* trigger com-init */
+ tmp = in_le32(priv->regbase + SIR_SCONTROL);
+ tmp = (tmp & 0x0f0) | 0x300 | SIR_SCONTROL_DETEN;
+ out_le32(priv->regbase + SIR_SCONTROL, tmp);
+
+ mdelay(1);
+
+ tmp = in_le32(priv->regbase + SIR_SCONTROL);
+ tries2 = 5;
+ do {
+ tmp = (tmp & 0x0f0) | 0x300;
+ out_le32(priv->regbase + SIR_SCONTROL, tmp);
+ mdelay(10);
+ tmp = in_le32(priv->regbase + SIR_SCONTROL);
+ } while ((tmp & 0xf0f) != 0x300 && tries2--);
+
+ mdelay(10);
+
+ for (tries2 = 0; tries2 < 200; tries2++) {
+ tmp = in_le32(priv->regbase + SIR_SSTATUS);
+ if ((tmp & SSTATUS_DET_MASK) == 0x03) {
+ debug("Found device on port\n");
+ return 0;
+ }
+ mdelay(1);
+ }
+
+ if ((tmp & SSTATUS_DET_MASK) == 0) {
+ debug("No device attached on port %d\n", port);
+ return -ENODEV;
+ }
+
+ if (!set15) {
+ /* Try on 1.5Gb/S */
+ debug("Try 1.5Gb link\n");
+ set15 = 1;
+ out_le32(priv->regbase + SIR_SCONTROL, 0x304);
+
+ tmp = in_le32(priv->regbase + SIR_ICFG);
+ tmp &= ~SIR_CFG_GEN2EN;
+ out_le32(priv->regbase + SIR_ICFG, tmp);
+
+ mv_reset_channel(port);
+ }
+ }
+
+ debug("Failed to probe port\n");
+ return -1;
+}
+
+/* Get request queue in pointer */
+static int get_reqip(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ u32 tmp;
+
+ tmp = in_le32(priv->regbase + EDMA_RQIPR) & EDMA_RQIPR_IPMASK;
+ tmp = tmp >> EDMA_RQIPR_IPSHIFT;
+
+ return tmp;
+}
+
+static void set_reqip(int port, int reqin)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ u32 tmp;
+
+ tmp = in_le32(priv->regbase + EDMA_RQIPR) & ~EDMA_RQIPR_IPMASK;
+ tmp |= ((reqin << EDMA_RQIPR_IPSHIFT) & EDMA_RQIPR_IPMASK);
+ out_le32(priv->regbase + EDMA_RQIPR, tmp);
+}
+
+/* Get next available slot, ignoring possible overwrite */
+static int get_next_reqip(int port)
+{
+ int slot = get_reqip(port);
+ slot = (slot + 1) % REQUEST_QUEUE_SIZE;
+ return slot;
+}
+
+/* Get response queue in pointer */
+static int get_rspip(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ u32 tmp;
+
+ tmp = in_le32(priv->regbase + EDMA_RSIPR) & EDMA_RSIPR_IPMASK;
+ tmp = tmp >> EDMA_RSIPR_IPSHIFT;
+
+ return tmp;
+}
+
+/* Get response queue out pointer */
+static int get_rspop(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ u32 tmp;
+
+ tmp = in_le32(priv->regbase + EDMA_RSOPR) & EDMA_RSOPR_OPMASK;
+ tmp = tmp >> EDMA_RSOPR_OPSHIFT;
+ return tmp;
+}
+
+/* Get next response queue pointer */
+static int get_next_rspop(int port)
+{
+ return (get_rspop(port) + 1) % RESPONSE_QUEUE_SIZE;
+}
+
+/* Set response queue pointer */
+static void set_rspop(int port, int reqin)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ u32 tmp;
+
+ tmp = in_le32(priv->regbase + EDMA_RSOPR) & ~EDMA_RSOPR_OPMASK;
+ tmp |= ((reqin << EDMA_RSOPR_OPSHIFT) & EDMA_RSOPR_OPMASK);
+
+ out_le32(priv->regbase + EDMA_RSOPR, tmp);
+}
+
+static int wait_dma_completion(int port, int index, u32 timeout_msec)
+{
+ u32 tmp, res;
+
+ tmp = port == 0 ? SATAHC_ICR_PORT0 : SATAHC_ICR_PORT1;
+ res = ata_wait_register((u32 *)(SATAHC_BASE + SATAHC_ICR), tmp,
+ tmp, timeout_msec);
+ if (res)
+ printf("Failed to wait for completion on port %d\n", port);
+
+ return res;
+}
+
+static void process_responses(int port)
+{
+#ifdef DEBUG
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+#endif
+ u32 tmp;
+ u32 outind = get_rspop(port);
+
+ /* Ack interrupts */
+ tmp = in_le32(SATAHC_BASE + SATAHC_ICR);
+ if (port == 0)
+ tmp &= ~(BIT(0) | BIT(8));
+ else
+ tmp &= ~(BIT(1) | BIT(9));
+ tmp &= ~(BIT(4));
+ out_le32(SATAHC_BASE + SATAHC_ICR, tmp);
+
+ while (get_rspip(port) != outind) {
+#ifdef DEBUG
+ debug("Response index %d flags %08x on port %d\n", outind,
+ priv->response[outind].flags, port);
+#endif
+ outind = get_next_rspop(port);
+ set_rspop(port, outind);
+ }
+}
+
+static int mv_ata_exec_ata_cmd(int port, struct sata_fis_h2d *cfis,
+ u8 *buffer, u32 len, u32 iswrite)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ struct crqb *req;
+ int slot;
+
+ if (len >= 64 * 1024) {
+ printf("We only support <64K transfers for now\n");
+ return -1;
+ }
+
+ /* Initialize request */
+ slot = get_reqip(port);
+ memset(&priv->request[slot], 0, sizeof(struct crqb));
+ req = &priv->request[slot];
+
+ req->dtb_low = (u32)buffer;
+
+ /* Dont use PRDs */
+ req->control_flags = CRQB_CNTRLFLAGS_PRDMODE;
+ req->control_flags |= iswrite ? 0 : CRQB_CNTRLFLAGS_DIR;
+ req->control_flags |=
+ ((cfis->pm_port_c << CRQB_CNTRLFLAGS_PMPORTSHIFT)
+ & CRQB_CNTRLFLAGS_PMPORTMASK);
+
+ req->drb_count = len;
+
+ req->ata_cmd_feat = (cfis->command << CRQB_CMDFEAT_CMDSHIFT) &
+ CRQB_CMDFEAT_CMDMASK;
+ req->ata_cmd_feat |= (cfis->features << CRQB_CMDFEAT_FEATSHIFT) &
+ CRQB_CMDFEAT_FEATMASK;
+
+ req->ata_addr = (cfis->lba_low << CRQB_ADDR_LBA_LOWSHIFT) &
+ CRQB_ADDR_LBA_LOWMASK;
+ req->ata_addr |= (cfis->lba_mid << CRQB_ADDR_LBA_MIDSHIFT) &
+ CRQB_ADDR_LBA_MIDMASK;
+ req->ata_addr |= (cfis->lba_high << CRQB_ADDR_LBA_HIGHSHIFT) &
+ CRQB_ADDR_LBA_HIGHMASK;
+ req->ata_addr |= (cfis->device << CRQB_ADDR_DEVICE_SHIFT) &
+ CRQB_ADDR_DEVICE_MASK;
+
+ req->ata_addr_exp = (cfis->lba_low_exp << CRQB_ADDR_LBA_LOW_EXP_SHIFT) &
+ CRQB_ADDR_LBA_LOW_EXP_MASK;
+ req->ata_addr_exp |=
+ (cfis->lba_mid_exp << CRQB_ADDR_LBA_MID_EXP_SHIFT) &
+ CRQB_ADDR_LBA_MID_EXP_MASK;
+ req->ata_addr_exp |=
+ (cfis->lba_high_exp << CRQB_ADDR_LBA_HIGH_EXP_SHIFT) &
+ CRQB_ADDR_LBA_HIGH_EXP_MASK;
+ req->ata_addr_exp |=
+ (cfis->features_exp << CRQB_ADDR_FEATURE_EXP_SHIFT) &
+ CRQB_ADDR_FEATURE_EXP_MASK;
+
+ req->ata_sect_count =
+ (cfis->sector_count << CRQB_SECTCOUNT_COUNT_SHIFT) &
+ CRQB_SECTCOUNT_COUNT_MASK;
+ req->ata_sect_count |=
+ (cfis->sector_count_exp << CRQB_SECTCOUNT_COUNT_EXP_SHIFT) &
+ CRQB_SECTCOUNT_COUNT_EXP_MASK;
+
+ /* Flush data */
+ flush_dcache_range((u32)req, (u32)req + sizeof(*req));
+
+ /* Trigger operation */
+ slot = get_next_reqip(port);
+ set_reqip(port, slot);
+
+ /* Wait for completion */
+ if (wait_dma_completion(port, slot, 10000)) {
+ printf("ATA operation timed out\n");
+ return -1;
+ }
+
+ process_responses(port);
+
+ /* Invalidate data on read */
+ if (buffer && len)
+ invalidate_dcache_range((u32)buffer, (u32)buffer + len);
+
+ return len;
+}
+
+static u32 mv_sata_rw_cmd_ext(int port, lbaint_t start, u32 blkcnt,
+ u8 *buffer, int is_write)
+{
+ struct sata_fis_h2d cfis;
+ u32 res;
+ u64 block;
+
+ block = (u64)start;
+
+ memset(&cfis, 0, sizeof(struct sata_fis_h2d));
+
+ cfis.fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+ cfis.command = (is_write) ? ATA_CMD_WRITE_EXT : ATA_CMD_READ_EXT;
+
+ cfis.lba_high_exp = (block >> 40) & 0xff;
+ cfis.lba_mid_exp = (block >> 32) & 0xff;
+ cfis.lba_low_exp = (block >> 24) & 0xff;
+ cfis.lba_high = (block >> 16) & 0xff;
+ cfis.lba_mid = (block >> 8) & 0xff;
+ cfis.lba_low = block & 0xff;
+ cfis.device = ATA_LBA;
+ cfis.sector_count_exp = (blkcnt >> 8) & 0xff;
+ cfis.sector_count = blkcnt & 0xff;
+
+ res = mv_ata_exec_ata_cmd(port, &cfis, buffer, ATA_SECT_SIZE * blkcnt,
+ is_write);
+
+ return res >= 0 ? blkcnt : res;
+}
+
+static u32 mv_sata_rw_cmd(int port, lbaint_t start, u32 blkcnt, u8 *buffer,
+ int is_write)
+{
+ struct sata_fis_h2d cfis;
+ lbaint_t block;
+ u32 res;
+
+ block = start;
+
+ memset(&cfis, 0, sizeof(struct sata_fis_h2d));
+
+ cfis.fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+ cfis.command = (is_write) ? ATA_CMD_WRITE : ATA_CMD_READ;
+ cfis.device = ATA_LBA;
+
+ cfis.device |= (block >> 24) & 0xf;
+ cfis.lba_high = (block >> 16) & 0xff;
+ cfis.lba_mid = (block >> 8) & 0xff;
+ cfis.lba_low = block & 0xff;
+ cfis.sector_count = (u8)(blkcnt & 0xff);
+
+ res = mv_ata_exec_ata_cmd(port, &cfis, buffer, ATA_SECT_SIZE * blkcnt,
+ is_write);
+
+ return res >= 0 ? blkcnt : res;
+}
+
+static u32 ata_low_level_rw(int dev, lbaint_t blknr, lbaint_t blkcnt,
+ void *buffer, int is_write)
+{
+ lbaint_t start, blks;
+ u8 *addr;
+ int max_blks;
+
+ debug("%s: %ld %ld\n", __func__, blknr, blkcnt);
+
+ start = blknr;
+ blks = blkcnt;
+ addr = (u8 *)buffer;
+
+ max_blks = MV_ATA_MAX_SECTORS;
+ do {
+ if (blks > max_blks) {
+ if (sata_dev_desc[dev].lba48) {
+ mv_sata_rw_cmd_ext(dev, start, max_blks, addr,
+ is_write);
+ } else {
+ mv_sata_rw_cmd(dev, start, max_blks, addr,
+ is_write);
+ }
+ start += max_blks;
+ blks -= max_blks;
+ addr += ATA_SECT_SIZE * max_blks;
+ } else {
+ if (sata_dev_desc[dev].lba48) {
+ mv_sata_rw_cmd_ext(dev, start, blks, addr,
+ is_write);
+ } else {
+ mv_sata_rw_cmd(dev, start, blks, addr,
+ is_write);
+ }
+ start += blks;
+ blks = 0;
+ addr += ATA_SECT_SIZE * blks;
+ }
+ } while (blks != 0);
+
+ return blkcnt;
+}
+
+static int mv_ata_exec_ata_cmd_nondma(int port,
+ struct sata_fis_h2d *cfis, u8 *buffer,
+ u32 len, u32 iswrite)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ int i;
+ u16 *tp;
+
+ debug("%s\n", __func__);
+
+ out_le32(priv->regbase + PIO_SECTOR_COUNT, cfis->sector_count);
+ out_le32(priv->regbase + PIO_LBA_HI, cfis->lba_high);
+ out_le32(priv->regbase + PIO_LBA_MID, cfis->lba_mid);
+ out_le32(priv->regbase + PIO_LBA_LOW, cfis->lba_low);
+ out_le32(priv->regbase + PIO_ERR_FEATURES, cfis->features);
+ out_le32(priv->regbase + PIO_DEVICE, cfis->device);
+ out_le32(priv->regbase + PIO_CMD_STATUS, cfis->command);
+
+ if (ata_wait_register((u32 *)(priv->regbase + PIO_CMD_STATUS),
+ ATA_BUSY, 0x0, 10000)) {
+ debug("Failed to wait for completion\n");
+ return -1;
+ }
+
+ if (len > 0) {
+ tp = (u16 *)buffer;
+ for (i = 0; i < len / 2; i++) {
+ if (iswrite)
+ out_le16(priv->regbase + PIO_DATA, *tp++);
+ else
+ *tp++ = in_le16(priv->regbase + PIO_DATA);
+ }
+ }
+
+ return len;
+}
+
+static int mv_sata_identify(int port, u16 *id)
+{
+ struct sata_fis_h2d h2d;
+
+ memset(&h2d, 0, sizeof(struct sata_fis_h2d));
+
+ h2d.fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+ h2d.command = ATA_CMD_ID_ATA;
+
+ /* Give device time to get operational */
+ mdelay(10);
+
+ return mv_ata_exec_ata_cmd_nondma(port, &h2d, (u8 *)id,
+ ATA_ID_WORDS * 2, READ_CMD);
+}
+
+static void mv_sata_xfer_mode(int port, u16 *id)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+
+ priv->pio = id[ATA_ID_PIO_MODES];
+ priv->mwdma = id[ATA_ID_MWDMA_MODES];
+ priv->udma = id[ATA_ID_UDMA_MODES];
+ debug("pio %04x, mwdma %04x, udma %04x\n", priv->pio, priv->mwdma,
+ priv->udma);
+}
+
+static void mv_sata_set_features(int port)
+{
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+ struct sata_fis_h2d cfis;
+ u8 udma_cap;
+
+ memset(&cfis, 0, sizeof(struct sata_fis_h2d));
+
+ cfis.fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+ cfis.command = ATA_CMD_SET_FEATURES;
+ cfis.features = SETFEATURES_XFER;
+
+ /* First check the device capablity */
+ udma_cap = (u8) (priv->udma & 0xff);
+
+ if (udma_cap == ATA_UDMA6)
+ cfis.sector_count = XFER_UDMA_6;
+ if (udma_cap == ATA_UDMA5)
+ cfis.sector_count = XFER_UDMA_5;
+ if (udma_cap == ATA_UDMA4)
+ cfis.sector_count = XFER_UDMA_4;
+ if (udma_cap == ATA_UDMA3)
+ cfis.sector_count = XFER_UDMA_3;
+
+ mv_ata_exec_ata_cmd_nondma(port, &cfis, NULL, 0, READ_CMD);
+}
+
+int mv_sata_spin_down(int dev)
+{
+ struct sata_fis_h2d cfis;
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[dev].priv;
+
+ if (priv->link == 0) {
+ debug("No device on port: %d\n", dev);
+ return 1;
+ }
+
+ memset(&cfis, 0, sizeof(struct sata_fis_h2d));
+
+ cfis.fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+ cfis.command = ATA_CMD_STANDBY;
+
+ return mv_ata_exec_ata_cmd_nondma(dev, &cfis, NULL, 0, READ_CMD);
+}
+
+int mv_sata_spin_up(int dev)
+{
+ struct sata_fis_h2d cfis;
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[dev].priv;
+
+ if (priv->link == 0) {
+ debug("No device on port: %d\n", dev);
+ return 1;
+ }
+
+ memset(&cfis, 0, sizeof(struct sata_fis_h2d));
+
+ cfis.fis_type = SATA_FIS_TYPE_REGISTER_H2D;
+ cfis.command = ATA_CMD_IDLE;
+
+ return mv_ata_exec_ata_cmd_nondma(dev, &cfis, NULL, 0, READ_CMD);
+}
+
+ulong sata_read(int dev, ulong blknr, lbaint_t blkcnt, void *buffer)
+{
+ return ata_low_level_rw(dev, blknr, blkcnt, buffer, READ_CMD);
+}
+
+ulong sata_write(int dev, ulong blknr, lbaint_t blkcnt, const void *buffer)
+{
+ return ata_low_level_rw(dev, blknr, blkcnt, (void *)buffer, WRITE_CMD);
+}
+
+/*
+ * Initialize SATA memory windows
+ */
+static void mvsata_ide_conf_mbus_windows(void)
+{
+ const struct mbus_dram_target_info *dram;
+ int i;
+
+ dram = mvebu_mbus_dram_info();
+
+ /* Disable windows, Set Size/Base to 0 */
+ for (i = 0; i < 4; i++) {
+ writel(0, MVSATA_WIN_CONTROL(i));
+ writel(0, MVSATA_WIN_BASE(i));
+ }
+
+ for (i = 0; i < dram->num_cs; i++) {
+ const struct mbus_dram_window *cs = dram->cs + i;
+ writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) |
+ (dram->mbus_dram_target_id << 4) | 1,
+ MVSATA_WIN_CONTROL(i));
+ writel(cs->base & 0xffff0000, MVSATA_WIN_BASE(i));
+ }
+}
+
+int init_sata(int dev)
+{
+ struct mv_priv *priv;
+
+ debug("Initialize sata dev: %d\n", dev);
+
+ if (dev < 0 || dev >= CONFIG_SYS_SATA_MAX_DEVICE) {
+ printf("Invalid sata device %d\n", dev);
+ return -1;
+ }
+
+ priv = (struct mv_priv *)malloc(sizeof(struct mv_priv));
+ if (!priv) {
+ printf("Failed to allocate memory for private sata data\n");
+ return -ENOMEM;
+ }
+
+ memset((void *)priv, 0, sizeof(struct mv_priv));
+
+ /* Allocate and align request buffer */
+ priv->crqb_alloc = malloc(sizeof(struct crqb) * REQUEST_QUEUE_SIZE +
+ CRQB_ALIGN);
+ if (!priv->crqb_alloc) {
+ printf("Unable to allocate memory for request queue\n");
+ return -ENOMEM;
+ }
+ memset(priv->crqb_alloc, 0,
+ sizeof(struct crqb) * REQUEST_QUEUE_SIZE + CRQB_ALIGN);
+ priv->request = (struct crqb *)(((u32) priv->crqb_alloc + CRQB_ALIGN) &
+ ~(CRQB_ALIGN - 1));
+
+ /* Allocate and align response buffer */
+ priv->crpb_alloc = malloc(sizeof(struct crpb) * REQUEST_QUEUE_SIZE +
+ CRPB_ALIGN);
+ if (!priv->crpb_alloc) {
+ printf("Unable to allocate memory for response queue\n");
+ return -ENOMEM;
+ }
+ memset(priv->crpb_alloc, 0,
+ sizeof(struct crpb) * REQUEST_QUEUE_SIZE + CRPB_ALIGN);
+ priv->response = (struct crpb *)(((u32) priv->crpb_alloc + CRPB_ALIGN) &
+ ~(CRPB_ALIGN - 1));
+
+ sata_dev_desc[dev].priv = (void *)priv;
+
+ sprintf(priv->name, "SATA%d", dev);
+
+ priv->regbase = dev == 0 ? SATA0_BASE : SATA1_BASE;
+
+ if (!hw_init) {
+ debug("Initialize sata hw\n");
+ hw_init = 1;
+ mv_reset_one_hc();
+ mvsata_ide_conf_mbus_windows();
+ }
+
+ mv_reset_port(dev);
+
+ if (probe_port(dev)) {
+ priv->link = 0;
+ return -ENODEV;
+ }
+ priv->link = 1;
+
+ return 0;
+}
+
+int reset_sata(int dev)
+{
+ return 0;
+}
+
+int scan_sata(int port)
+{
+ unsigned char serial[ATA_ID_SERNO_LEN + 1];
+ unsigned char firmware[ATA_ID_FW_REV_LEN + 1];
+ unsigned char product[ATA_ID_PROD_LEN + 1];
+ u64 n_sectors;
+ u16 *id;
+ struct mv_priv *priv = (struct mv_priv *)sata_dev_desc[port].priv;
+
+ if (!priv->link)
+ return -ENODEV;
+
+ id = (u16 *)malloc(ATA_ID_WORDS * 2);
+ if (!id) {
+ printf("Failed to malloc id data\n");
+ return -ENOMEM;
+ }
+
+ mv_sata_identify(port, id);
+ ata_swap_buf_le16(id, ATA_ID_WORDS);
+#ifdef DEBUG
+ ata_dump_id(id);
+#endif
+
+ /* Serial number */
+ ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
+ memcpy(sata_dev_desc[port].product, serial, sizeof(serial));
+
+ /* Firmware version */
+ ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
+ memcpy(sata_dev_desc[port].revision, firmware, sizeof(firmware));
+
+ /* Product model */
+ ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
+ memcpy(sata_dev_desc[port].vendor, product, sizeof(product));
+
+ /* Total sectors */
+ n_sectors = ata_id_n_sectors(id);
+ sata_dev_desc[port].lba = n_sectors;
+
+ /* Check if support LBA48 */
+ if (ata_id_has_lba48(id)) {
+ sata_dev_desc[port].lba48 = 1;
+ debug("Device support LBA48\n");
+ }
+
+ /* Get the NCQ queue depth from device */
+ priv->queue_depth = ata_id_queue_depth(id);
+
+ /* Get the xfer mode from device */
+ mv_sata_xfer_mode(port, id);
+
+ /* Set the xfer mode to highest speed */
+ mv_sata_set_features(port);
+
+ /* Start up */
+ mv_start_edma_engine(port);
+
+ return 0;
+}
projects / uboot.git / commitdiff