1235 lines
32 KiB
C
1235 lines
32 KiB
C
/*
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* Copyright (c) 2006-2020, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2020-08-19 lizhirui porting to ls2k
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*/
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#include <rtthread.h>
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#include <rtdef.h>
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#include <mips_addrspace.h>
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#include <ata_interface.h>
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#include <ahci.h>
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#include <dwc_ahsata.h>
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#include <fis.h>
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#include <libata.h>
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#include <ata_debug.h>
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#include <blk_device.h>
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#include "dwc_ahsata_priv.h"
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struct sata_port_regs
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{
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u32 clb;
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u32 clbu;
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u32 fb;
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u32 fbu;
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u32 is;
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u32 ie;
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u32 cmd;
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u32 res1[1];
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u32 tfd;
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u32 sig;
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u32 ssts;
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u32 sctl;
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u32 serr;
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u32 sact;
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u32 ci;
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u32 sntf;
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u32 res2[1];
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u32 dmacr;
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u32 res3[1];
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u32 phycr;
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u32 physr;
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};
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struct sata_host_regs
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{
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u32 cap;
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u32 ghc;
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u32 is;
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u32 pi;
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u32 vs;
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u32 ccc_ctl;
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u32 ccc_ports;
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u32 res1[2];
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u32 cap2;
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u32 res2[30];
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u32 bistafr;
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u32 bistcr;
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u32 bistfctr;
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u32 bistsr;
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u32 bistdecr;
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u32 res3[2];
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u32 oobr;
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u32 res4[8];
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u32 timer1ms;
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u32 res5[1];
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u32 gparam1r;
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u32 gparam2r;
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u32 pparamr;
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u32 testr;
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u32 versionr;
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u32 idr;
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};
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#define MAX_DATA_BYTES_PER_SG (4 * 1024 * 1024)
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#define MAX_BYTES_PER_TRANS (AHCI_MAX_SG * MAX_DATA_BYTES_PER_SG)
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#define writel_with_flush(a, b) \
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do \
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{ \
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writel(a, b); \
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readl(b); \
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} while (0)
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static inline void __iomem *ahci_port_base(void __iomem *base, u32 port)
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{
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return base + 0x100 + (port * 0x80);
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}
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static int waiting_for_cmd_completed(u8 *offset, int timeout_msec, u32 sign)
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{
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int i;
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u32 status;
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for (i = 0; ((status = readl(offset)) & sign) && i < timeout_msec; i++)
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{
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mdelay(1);
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}
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return (i < timeout_msec) ? 0 : -1;
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}
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static int ahci_setup_oobr(struct ahci_uc_priv *uc_priv, int clk)
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{
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struct sata_host_regs *host_mmio = uc_priv->mmio_base;
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writel(SATA_HOST_OOBR_WE, &host_mmio->oobr);
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writel(0x02060b14, &host_mmio->oobr);
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return 0;
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}
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int ahci_host_init(struct ahci_uc_priv *uc_priv)
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{
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u32 tmp, cap_save, num_ports;
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int i, j, timeout = 1000;
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struct sata_port_regs *port_mmio = NULL;
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struct sata_host_regs *host_mmio = uc_priv->mmio_base;
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//prepare to enable staggered spin-up
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cap_save = readl(&host_mmio->cap);
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cap_save |= SATA_HOST_CAP_SSS;
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/* global controller reset */
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tmp = readl(&host_mmio->ghc);
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//ahsata controller reset
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if ((tmp & SATA_HOST_GHC_HR) == 0)
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{
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writel_with_flush(tmp | SATA_HOST_GHC_HR, &host_mmio->ghc);
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}
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//wait for reset finishing
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while ((readl(&host_mmio->ghc) & SATA_HOST_GHC_HR) && --timeout)
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;
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//reset timeout
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if (timeout <= 0)
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{
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debug("controller reset failed (0x%x)\n", tmp);
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return -1;
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}
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/* Set timer 1ms @ 100MHz*/
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writel(100000000 / 1000, &host_mmio->timer1ms);
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ahci_setup_oobr(uc_priv, 0);
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//enable ahci
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writel_with_flush(SATA_HOST_GHC_AE, &host_mmio->ghc);
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//enable staggered spin-up
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writel(cap_save, &host_mmio->cap);
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//get sata port number
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num_ports = (cap_save & SATA_HOST_CAP_NP_MASK) + 1;
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//initialize pi register to set correct port number
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writel_with_flush((1 << num_ports) - 1, &host_mmio->pi);
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/*
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* Determine which Ports are implemented by the DWC_ahsata,
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* by reading the PI register. This bit map value aids the
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* software to determine how many Ports are available and
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* which Port registers need to be initialized.
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*/
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uc_priv->cap = readl(&host_mmio->cap);
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uc_priv->port_map = readl(&host_mmio->pi);
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/* Determine how many command slots the HBA supports */
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uc_priv->n_ports = (uc_priv->cap & SATA_HOST_CAP_NP_MASK) + 1;
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debug("cap 0x%x port_map 0x%x n_ports %d\n",
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uc_priv->cap, uc_priv->port_map, uc_priv->n_ports);
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for (i = 0; i < uc_priv->n_ports; i++)
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{
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uc_priv->port[i].port_mmio = ahci_port_base(host_mmio, i);
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port_mmio = uc_priv->port[i].port_mmio;
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/* Ensure that the DWC_ahsata is in idle state */
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tmp = readl(&port_mmio->cmd);
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/*
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* When P#CMD.ST, P#CMD.CR, P#CMD.FRE and P#CMD.FR
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* are all cleared, the Port is in an idle state.
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*/
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if (tmp & (SATA_PORT_CMD_CR | SATA_PORT_CMD_FR |
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SATA_PORT_CMD_FRE | SATA_PORT_CMD_ST))
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{
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/*
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* System software places a Port into the idle state by
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* clearing P#CMD.ST and waiting for P#CMD.CR to return
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* 0 when read.
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*/
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tmp &= ~SATA_PORT_CMD_ST;
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writel_with_flush(tmp, &port_mmio->cmd);
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/*
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* spec says 500 msecs for each bit, so
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* this is slightly incorrect.
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*/
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mdelay(500);
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timeout = 1000;
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while ((readl(&port_mmio->cmd) & SATA_PORT_CMD_CR) && --timeout)
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;
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if (timeout <= 0)
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{
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debug("port reset failed (0x%x)\n", tmp);
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return -1;
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}
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}
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/* Spin-up device */
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tmp = readl(&port_mmio->cmd);
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writel((tmp | SATA_PORT_CMD_SUD), &port_mmio->cmd);
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/* Wait for spin-up to finish */
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timeout = 1000;
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while (!(readl(&port_mmio->cmd) | SATA_PORT_CMD_SUD) && --timeout)
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;
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if (timeout <= 0)
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{
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debug("Spin-Up can't finish!\n");
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return -1;
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}
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for (j = 0; j < 100; ++j)
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{
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mdelay(10);
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tmp = readl(&port_mmio->ssts);
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if (((tmp & SATA_PORT_SSTS_DET_MASK) == 0x3) ||
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((tmp & SATA_PORT_SSTS_DET_MASK) == 0x1))
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{
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break;
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}
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}
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/* Wait for COMINIT bit 26 (DIAG_X) in SERR */
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timeout = 1000;
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while (!(readl(&port_mmio->serr) & SATA_PORT_SERR_DIAG_X) && --timeout)
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;
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if (timeout <= 0)
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{
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debug("Can't find DIAG_X set!\n");
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return -1;
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}
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/*
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* For each implemented Port, clear the P#SERR
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* register, by writing ones to each implemented\
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* bit location.
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*/
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tmp = readl(&port_mmio->serr);
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debug("P#SERR 0x%x\n",
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tmp);
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writel(tmp, &port_mmio->serr);
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/* Ack any pending irq events for this port */
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tmp = readl(&host_mmio->is);
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debug("IS 0x%x\n", tmp);
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if (tmp)
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{
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writel(tmp, &host_mmio->is);
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}
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writel(1 << i, &host_mmio->is);
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/* set irq mask (enables interrupts) */
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writel(DEF_PORT_IRQ, &port_mmio->ie);
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/* register linkup ports */
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tmp = readl(&port_mmio->ssts);
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debug("Port %d status: 0x%x\n", i, tmp);
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if ((tmp & SATA_PORT_SSTS_DET_MASK) == 0x03)
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{
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uc_priv->link_port_map |= (0x01 << i);
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}
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}
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tmp = readl(&host_mmio->ghc);
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debug("GHC 0x%x\n", tmp);
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//Interrupt Enable
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writel(tmp | SATA_HOST_GHC_IE, &host_mmio->ghc);
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tmp = readl(&host_mmio->ghc);
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debug("GHC 0x%x\n", tmp);
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return 0;
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}
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int rt_hw_ahci_host_init()
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{
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struct ahci_uc_priv *ahci_device;
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ahci_device = (struct ahci_uc_priv *)rt_device_create(RT_Device_Class_Miscellaneous, sizeof(struct ahci_uc_priv) - sizeof(struct rt_device));
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ahci_device->mmio_base = (void *)DWCAHSATA_BASE;
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ahci_device->parent.init = NULL;
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ahci_device->parent.open = NULL;
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ahci_device->parent.close = NULL;
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ahci_device->parent.read = NULL;
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ahci_device->parent.write = NULL;
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ahci_device->parent.control = NULL;
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if (rt_device_register((rt_device_t)ahci_device, "dwc_ahsata_ahci", 0) != RT_EOK)
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{
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rt_kprintf("dwc_ahsata_ahci device register failed!\n");
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return -RT_ERROR;
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}
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if (dwc_ahsata_probe((rt_device_t)ahci_device) != 0)
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{
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rt_kprintf("ahci probe failed!\n");
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return -RT_ERROR;
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}
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if (dwc_ahsata_scan((rt_device_t)ahci_device) != 0)
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{
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rt_kprintf("ahci host sata device scan failed!\n");
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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INIT_COMPONENT_EXPORT(rt_hw_ahci_host_init);
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static void ahci_print_info(struct ahci_uc_priv *uc_priv)
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{
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struct sata_host_regs *host_mmio = uc_priv->mmio_base;
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u32 vers, cap, impl, speed;
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const char *speed_s;
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const char *scc_s;
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vers = readl(&host_mmio->vs);
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cap = uc_priv->cap;
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impl = uc_priv->port_map;
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speed = (cap & SATA_HOST_CAP_ISS_MASK) >> SATA_HOST_CAP_ISS_OFFSET;
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if (speed == 1)
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{
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speed_s = "1.5";
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}
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else if (speed == 2)
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{
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speed_s = "3";
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}
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else
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{
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speed_s = "?";
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}
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scc_s = "SATA";
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rt_kprintf("AHCI %02x%02x.%02x%02x "
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"%u slots %u ports %s Gbps 0x%x impl %s mode\n",
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(vers >> 24) & 0xff,
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(vers >> 16) & 0xff,
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(vers >> 8) & 0xff,
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vers & 0xff,
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((cap >> 8) & 0x1f) + 1,
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(cap & 0x1f) + 1,
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speed_s,
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impl,
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scc_s);
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rt_kprintf("flags: "
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"%s%s%s%s%s%s"
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"%s%s%s%s%s%s%s\n",
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cap & (1 << 31) ? "64bit " : "",
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cap & (1 << 30) ? "ncq " : "",
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cap & (1 << 28) ? "ilck " : "",
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cap & (1 << 27) ? "stag " : "",
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cap & (1 << 26) ? "pm " : "",
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cap & (1 << 25) ? "led " : "",
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cap & (1 << 24) ? "clo " : "",
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cap & (1 << 19) ? "nz " : "",
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cap & (1 << 18) ? "only " : "",
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cap & (1 << 17) ? "pmp " : "",
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cap & (1 << 15) ? "pio " : "",
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cap & (1 << 14) ? "slum " : "",
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cap & (1 << 13) ? "part " : "");
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rt_kprintf("version = %08x\n", ((struct sata_host_regs *)(uc_priv->mmio_base))->versionr);
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}
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static int ahci_fill_sg(struct ahci_uc_priv *uc_priv, u8 port,
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unsigned char *buf, int buf_len)
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{
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struct ahci_ioports *pp = &uc_priv->port[port];
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struct ahci_sg *ahci_sg = pp->cmd_tbl_sg;
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u32 sg_count, max_bytes;
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int i;
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max_bytes = MAX_DATA_BYTES_PER_SG;
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sg_count = ((buf_len - 1) / max_bytes) + 1;
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if (sg_count > AHCI_MAX_SG)
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{
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rt_kprintf("Error:Too much sg!\n");
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return -1;
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}
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for (i = 0; i < sg_count; i++)
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{
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ahci_sg->addr = VADDR_TO_PHY(buf + i * max_bytes);
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//ahci_sg->addr_hi = 0;
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ahci_sg->flags_size = cpu_to_le32(0x3fffff &
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(buf_len < max_bytes
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? (buf_len - 1)
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: (max_bytes - 1)));
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ahci_sg++;
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buf_len -= max_bytes;
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}
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return sg_count;
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}
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static void ahci_fill_cmd_slot(struct ahci_ioports *pp, u32 cmd_slot, u32 opts)
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{
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struct ahci_cmd_hdr *cmd_hdr = (struct ahci_cmd_hdr *)(pp->cmd_slot +
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AHCI_CMD_SLOT_SZ * cmd_slot);
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memset(cmd_hdr, 0, AHCI_CMD_SLOT_SZ);
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cmd_hdr->opts = cpu_to_le32(opts);
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cmd_hdr->status = 0;
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pp->cmd_slot->tbl_addr = VADDR_TO_PHY(pp->cmd_tbl);
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/*#ifdef CONFIG_PHYS_64BIT
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pp->cmd_slot->tbl_addr_hi =
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cpu_to_le32((u32)(((pp->cmd_tbl) >> 16) >> 16));
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#endif*/
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}
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#define AHCI_GET_CMD_SLOT(c) ((c) ? ffs(c) : 0)
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static int ahci_exec_ata_cmd(struct ahci_uc_priv *uc_priv, u8 port,
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struct sata_fis_h2d *cfis, u8 *buf, u32 buf_len,
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s32 is_write)
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{
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struct ahci_ioports *pp = &uc_priv->port[port];
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struct sata_port_regs *port_mmio = pp->port_mmio;
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u32 opts;
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int sg_count = 0, cmd_slot = 0;
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cmd_slot = AHCI_GET_CMD_SLOT(readl(&port_mmio->ci));
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if (32 == cmd_slot)
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{
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rt_kprintf("Can't find empty command slot!\n");
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return 0;
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}
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/* Check xfer length */
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if (buf_len > MAX_BYTES_PER_TRANS)
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{
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rt_kprintf("Max transfer length is %dB\n\r",
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MAX_BYTES_PER_TRANS);
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return 0;
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}
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memcpy((u8 *)(pp->cmd_tbl), cfis, sizeof(struct sata_fis_h2d));
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if (buf && buf_len)
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{
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sg_count = ahci_fill_sg(uc_priv, port, buf, buf_len);
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}
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opts = (sizeof(struct sata_fis_h2d) >> 2) | (sg_count << 16);
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if (is_write)
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{
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opts |= 0x40;
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flush_cache((ulong)buf, buf_len);
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}
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ahci_fill_cmd_slot(pp, cmd_slot, opts);
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flush_cache((int)(pp->cmd_slot), AHCI_PORT_PRIV_DMA_SZ);
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writel_with_flush(1 << cmd_slot, &port_mmio->ci);
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if (waiting_for_cmd_completed((u8 *)&port_mmio->ci, 10000,
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0x1 << cmd_slot))
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{
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rt_kprintf("timeout exit!\n");
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return -1;
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}
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invalidate_dcache_range((int)(pp->cmd_slot),
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(int)(pp->cmd_slot) + AHCI_PORT_PRIV_DMA_SZ);
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debug("ahci_exec_ata_cmd: %d byte transferred.\n",
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pp->cmd_slot->status);
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if (!is_write)
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{
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invalidate_dcache_range((ulong)buf, (ulong)buf + buf_len);
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}
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return buf_len;
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}
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static void ahci_set_feature(struct ahci_uc_priv *uc_priv, u8 port)
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{
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struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
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struct sata_fis_h2d *cfis = &h2d;
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|
|
memset(cfis, 0, sizeof(struct sata_fis_h2d));
|
|
cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
|
|
cfis->pm_port_c = 1 << 7;
|
|
cfis->command = ATA_CMD_SET_FEATURES;
|
|
cfis->features = SETFEATURES_XFER;
|
|
cfis->sector_count = ffs(uc_priv->udma_mask + 1) + 0x3e;
|
|
|
|
ahci_exec_ata_cmd(uc_priv, port, cfis, NULL, 0, READ_CMD);
|
|
}
|
|
|
|
static int ahci_port_start(struct ahci_uc_priv *uc_priv, u8 port)
|
|
{
|
|
struct ahci_ioports *pp = &uc_priv->port[port];
|
|
struct sata_port_regs *port_mmio = pp->port_mmio;
|
|
u32 port_status;
|
|
u64 mem;
|
|
int timeout = 10000000;
|
|
|
|
debug("Enter start port: %d\n", port);
|
|
port_status = readl(&port_mmio->ssts);
|
|
debug("Port %d status: %x\n", port, port_status);
|
|
|
|
if ((port_status & 0xf) != 0x03)
|
|
{
|
|
rt_kprintf("No Link on this port!\n");
|
|
return -1;
|
|
}
|
|
|
|
mem = (u64)malloc(AHCI_PORT_PRIV_DMA_SZ + 1024);
|
|
|
|
if (!mem)
|
|
{
|
|
rt_kprintf("No mem for table!\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mem = (mem + 0x400) & (~0x3ff); /* Aligned to 1024-bytes */
|
|
memset((u8 *)mem, 0, AHCI_PORT_PRIV_DMA_SZ);
|
|
|
|
/*
|
|
* First item in chunk of DMA memory: 32-slot command table,
|
|
* 32 bytes each in size
|
|
*/
|
|
pp->cmd_slot = (struct ahci_cmd_hdr *)mem;
|
|
debug("cmd_slot = 0x%p\n", pp->cmd_slot);
|
|
mem += (AHCI_CMD_SLOT_SZ * DWC_AHSATA_MAX_CMD_SLOTS);
|
|
|
|
/*
|
|
* Second item: Received-FIS area, 256-Byte aligned
|
|
*/
|
|
pp->rx_fis = mem;
|
|
mem += AHCI_RX_FIS_SZ;
|
|
|
|
/*
|
|
* Third item: data area for storing a single command
|
|
* and its scatter-gather table
|
|
*/
|
|
pp->cmd_tbl = mem;
|
|
debug("cmd_tbl_dma = 0x%lx\n", pp->cmd_tbl);
|
|
|
|
mem += AHCI_CMD_TBL_HDR;
|
|
|
|
writel_with_flush(0x00004444, &port_mmio->dmacr);
|
|
pp->cmd_tbl_sg = (struct ahci_sg *)mem;
|
|
writel_with_flush(LOW_PHY(pp->cmd_slot), &port_mmio->clb);
|
|
writel_with_flush(HIGH_PHY(pp->cmd_slot), &port_mmio->clbu);
|
|
writel_with_flush(LOW_PHY(pp->rx_fis), &port_mmio->fb);
|
|
writel_with_flush(HIGH_PHY(pp->rx_fis), &port_mmio->fbu);
|
|
|
|
/* Enable FRE */
|
|
writel_with_flush((SATA_PORT_CMD_FRE | readl(&port_mmio->cmd)),
|
|
&port_mmio->cmd);
|
|
|
|
/* Wait device ready */
|
|
while ((readl(&port_mmio->tfd) & (SATA_PORT_TFD_STS_ERR |
|
|
SATA_PORT_TFD_STS_DRQ | SATA_PORT_TFD_STS_BSY)) &&
|
|
--timeout)
|
|
;
|
|
if (timeout <= 0)
|
|
{
|
|
debug("Device not ready for BSY, DRQ and"
|
|
"ERR in TFD!\n");
|
|
return -1;
|
|
}
|
|
|
|
writel_with_flush(PORT_CMD_ICC_ACTIVE | PORT_CMD_FIS_RX |
|
|
PORT_CMD_POWER_ON | PORT_CMD_SPIN_UP |
|
|
PORT_CMD_START,
|
|
&port_mmio->cmd);
|
|
|
|
debug("Exit start port %d\n", port);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void dwc_ahsata_print_info(struct blk_device *pdev)
|
|
{
|
|
rt_kprintf("SATA Device Info:\n\r");
|
|
rt_kprintf("S/N: %s\n\rProduct model number: %s\n\r"
|
|
"Firmware version: %s\n\rCapacity: %lu sectors\n\r",
|
|
pdev->product, pdev->vendor, pdev->revision, pdev->lba);
|
|
}
|
|
|
|
static void dwc_ahsata_identify(struct ahci_uc_priv *uc_priv, u16 *id)
|
|
{
|
|
struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
|
|
struct sata_fis_h2d *cfis = &h2d;
|
|
u8 port = uc_priv->hard_port_no;
|
|
|
|
memset(cfis, 0, sizeof(struct sata_fis_h2d));
|
|
|
|
cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
|
|
cfis->pm_port_c = 0x80; /* is command */
|
|
cfis->command = ATA_CMD_ID_ATA;
|
|
|
|
ahci_exec_ata_cmd(uc_priv, port, cfis, (u8 *)id, ATA_ID_WORDS * 2,
|
|
READ_CMD);
|
|
ata_swap_buf_le16(id, ATA_ID_WORDS);
|
|
}
|
|
|
|
static void dwc_ahsata_xfer_mode(struct ahci_uc_priv *uc_priv, u16 *id)
|
|
{
|
|
uc_priv->pio_mask = id[ATA_ID_PIO_MODES];
|
|
uc_priv->udma_mask = id[ATA_ID_UDMA_MODES];
|
|
debug("pio %04x, udma %04x\n\r", uc_priv->pio_mask, uc_priv->udma_mask);
|
|
}
|
|
|
|
static u32 dwc_ahsata_rw_cmd(struct ahci_uc_priv *uc_priv, u32 start,
|
|
u32 blkcnt, u8 *buffer, int is_write)
|
|
{
|
|
struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
|
|
struct sata_fis_h2d *cfis = &h2d;
|
|
u8 port = uc_priv->hard_port_no;
|
|
u32 block;
|
|
|
|
block = start;
|
|
|
|
memset(cfis, 0, sizeof(struct sata_fis_h2d));
|
|
|
|
cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
|
|
cfis->pm_port_c = 0x80; /* is command */
|
|
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);
|
|
|
|
if (ahci_exec_ata_cmd(uc_priv, port, cfis, buffer,
|
|
ATA_SECT_SIZE * blkcnt, is_write) > 0)
|
|
return blkcnt;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static void dwc_ahsata_flush_cache(struct ahci_uc_priv *uc_priv)
|
|
{
|
|
struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
|
|
struct sata_fis_h2d *cfis = &h2d;
|
|
u8 port = uc_priv->hard_port_no;
|
|
|
|
memset(cfis, 0, sizeof(struct sata_fis_h2d));
|
|
|
|
cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
|
|
cfis->pm_port_c = 0x80; /* is command */
|
|
cfis->command = ATA_CMD_FLUSH;
|
|
|
|
ahci_exec_ata_cmd(uc_priv, port, cfis, NULL, 0, 0);
|
|
}
|
|
|
|
static u32 dwc_ahsata_rw_cmd_ext(struct ahci_uc_priv *uc_priv, u32 start,
|
|
lbaint_t blkcnt, u8 *buffer, int is_write)
|
|
{
|
|
struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
|
|
struct sata_fis_h2d *cfis = &h2d;
|
|
u8 port = uc_priv->hard_port_no;
|
|
u64 block;
|
|
|
|
block = (u64)start;
|
|
|
|
memset(cfis, 0, sizeof(struct sata_fis_h2d));
|
|
|
|
cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
|
|
cfis->pm_port_c = 0x80; /* is command */
|
|
|
|
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;
|
|
|
|
if (ahci_exec_ata_cmd(uc_priv, port, cfis, buffer,
|
|
ATA_SECT_SIZE * blkcnt, is_write) > 0)
|
|
return blkcnt;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static void dwc_ahsata_flush_cache_ext(struct ahci_uc_priv *uc_priv)
|
|
{
|
|
struct sata_fis_h2d h2d __aligned(ARCH_DMA_MINALIGN);
|
|
struct sata_fis_h2d *cfis = &h2d;
|
|
u8 port = uc_priv->hard_port_no;
|
|
|
|
memset(cfis, 0, sizeof(struct sata_fis_h2d));
|
|
|
|
cfis->fis_type = SATA_FIS_TYPE_REGISTER_H2D;
|
|
cfis->pm_port_c = 0x80; /* is command */
|
|
cfis->command = ATA_CMD_FLUSH_EXT;
|
|
|
|
ahci_exec_ata_cmd(uc_priv, port, cfis, NULL, 0, 0);
|
|
}
|
|
|
|
static void dwc_ahsata_init_wcache(struct ahci_uc_priv *uc_priv, u16 *id)
|
|
{
|
|
if (ata_id_has_wcache(id) && ata_id_wcache_enabled(id))
|
|
uc_priv->flags |= SATA_FLAG_WCACHE;
|
|
if (ata_id_has_flush(id))
|
|
uc_priv->flags |= SATA_FLAG_FLUSH;
|
|
if (ata_id_has_flush_ext(id))
|
|
uc_priv->flags |= SATA_FLAG_FLUSH_EXT;
|
|
}
|
|
|
|
static u32 ata_low_level_rw_lba48(struct ahci_uc_priv *uc_priv, u32 blknr,
|
|
lbaint_t blkcnt, const void *buffer,
|
|
int is_write)
|
|
{
|
|
u32 start, blks;
|
|
u8 *addr;
|
|
int max_blks;
|
|
|
|
start = blknr;
|
|
blks = blkcnt;
|
|
addr = (u8 *)buffer;
|
|
|
|
max_blks = ATA_MAX_SECTORS_LBA48;
|
|
|
|
do
|
|
{
|
|
if (blks > max_blks)
|
|
{
|
|
if (max_blks != dwc_ahsata_rw_cmd_ext(uc_priv, start,
|
|
max_blks, addr,
|
|
is_write))
|
|
return 0;
|
|
start += max_blks;
|
|
blks -= max_blks;
|
|
addr += ATA_SECT_SIZE * max_blks;
|
|
}
|
|
else
|
|
{
|
|
if (blks != dwc_ahsata_rw_cmd_ext(uc_priv, start, blks,
|
|
addr, is_write))
|
|
return 0;
|
|
start += blks;
|
|
blks = 0;
|
|
addr += ATA_SECT_SIZE * blks;
|
|
}
|
|
} while (blks != 0);
|
|
|
|
return blkcnt;
|
|
}
|
|
|
|
static u32 ata_low_level_rw_lba28(struct ahci_uc_priv *uc_priv, u32 blknr,
|
|
lbaint_t blkcnt, const void *buffer,
|
|
int is_write)
|
|
{
|
|
u32 start, blks;
|
|
u8 *addr;
|
|
int max_blks;
|
|
|
|
start = blknr;
|
|
blks = blkcnt;
|
|
addr = (u8 *)buffer;
|
|
|
|
max_blks = ATA_MAX_SECTORS;
|
|
do
|
|
{
|
|
if (blks > max_blks)
|
|
{
|
|
if (max_blks != dwc_ahsata_rw_cmd(uc_priv, start,
|
|
max_blks, addr,
|
|
is_write))
|
|
return 0;
|
|
start += max_blks;
|
|
blks -= max_blks;
|
|
addr += ATA_SECT_SIZE * max_blks;
|
|
}
|
|
else
|
|
{
|
|
if (blks != dwc_ahsata_rw_cmd(uc_priv, start, blks,
|
|
addr, is_write))
|
|
return 0;
|
|
start += blks;
|
|
blks = 0;
|
|
addr += ATA_SECT_SIZE * blks;
|
|
}
|
|
} while (blks != 0);
|
|
|
|
return blkcnt;
|
|
}
|
|
|
|
static int dwc_ahci_start_ports(struct ahci_uc_priv *uc_priv)
|
|
{
|
|
u32 linkmap;
|
|
int i;
|
|
|
|
linkmap = uc_priv->link_port_map;
|
|
|
|
if (0 == linkmap)
|
|
{
|
|
rt_kprintf("No port device detected!\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
for (i = 0; i < uc_priv->n_ports; i++)
|
|
{
|
|
if ((linkmap >> i) && ((linkmap >> i) & 0x01))
|
|
{
|
|
if (ahci_port_start(uc_priv, (u8)i))
|
|
{
|
|
rt_kprintf("Can not start port %d\n", i);
|
|
return 1;
|
|
}
|
|
|
|
uc_priv->hard_port_no = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
unsigned char sector_data[512];
|
|
|
|
void dump_pbuf(void *p, int len)
|
|
{
|
|
rt_kprintf("----dump_pbuf----\n");
|
|
rt_kprintf("pbuf = 0x%p,len = %d\n", p, len);
|
|
u32 i;
|
|
u8 *q = p;
|
|
rt_kprintf("%p", q);
|
|
|
|
for (i = 0; i < 16; i++)
|
|
{
|
|
rt_kprintf(" %02x", i);
|
|
}
|
|
|
|
rt_kprintf("\n");
|
|
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
if (!(i & 0xF))
|
|
{
|
|
rt_kprintf("%p", &q[i]);
|
|
}
|
|
|
|
rt_kprintf(" %02x", q[i]);
|
|
|
|
if ((i & 0xF) == 0xF)
|
|
{
|
|
rt_kprintf("\n");
|
|
}
|
|
}
|
|
|
|
rt_kprintf("\n-----------------\n");
|
|
}
|
|
|
|
static int dwc_ahsata_scan_common(struct ahci_uc_priv *uc_priv,
|
|
struct blk_device *pdev)
|
|
{
|
|
u8 serial[ATA_ID_SERNO_LEN + 1] = {0};
|
|
u8 firmware[ATA_ID_FW_REV_LEN + 1] = {0};
|
|
u8 product[ATA_ID_PROD_LEN + 1] = {0};
|
|
u8 port = uc_priv->hard_port_no;
|
|
ALLOC_CACHE_ALIGN_BUFFER(u16, id, ATA_ID_WORDS);
|
|
|
|
/* Identify device to get information */
|
|
dwc_ahsata_identify(uc_priv, id);
|
|
|
|
/* Serial number */
|
|
ata_id_c_string(id, serial, ATA_ID_SERNO, sizeof(serial));
|
|
memcpy(pdev->product, serial, sizeof(serial));
|
|
|
|
/* Firmware version */
|
|
ata_id_c_string(id, firmware, ATA_ID_FW_REV, sizeof(firmware));
|
|
memcpy(pdev->revision, firmware, sizeof(firmware));
|
|
|
|
/* Product model */
|
|
ata_id_c_string(id, product, ATA_ID_PROD, sizeof(product));
|
|
memcpy(pdev->vendor, product, sizeof(product));
|
|
|
|
/* Total sectors */
|
|
pdev->lba = ata_id_n_sectors(id);
|
|
|
|
pdev->type = DEV_TYPE_HARDDISK;
|
|
pdev->blksz = ATA_SECT_SIZE;
|
|
pdev->lun = 0;
|
|
|
|
/* Check if support LBA48 */
|
|
if (ata_id_has_lba48(id))
|
|
{
|
|
pdev->lba48 = 1;
|
|
debug("Device support LBA48\n\r");
|
|
}
|
|
|
|
/* Get the NCQ queue depth from device */
|
|
uc_priv->flags &= (~SATA_FLAG_Q_DEP_MASK);
|
|
uc_priv->flags |= ata_id_queue_depth(id);
|
|
|
|
/* Get the xfer mode from device */
|
|
dwc_ahsata_xfer_mode(uc_priv, id);
|
|
|
|
/* Get the write cache status from device */
|
|
dwc_ahsata_init_wcache(uc_priv, id);
|
|
|
|
/* Set the xfer mode to highest speed */
|
|
ahci_set_feature(uc_priv, port);
|
|
dwc_ahsata_read((rt_device_t)pdev, 0, sector_data, 1);
|
|
//dump_pbuf(sector_data, 512);
|
|
dwc_ahsata_print_info(pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SATA interface between low level driver and command layer
|
|
*/
|
|
static ulong sata_read_common(struct ahci_uc_priv *uc_priv,
|
|
struct blk_device *desc, ulong blknr,
|
|
lbaint_t blkcnt, void *buffer)
|
|
{
|
|
u32 rc;
|
|
|
|
if (desc->lba48)
|
|
rc = ata_low_level_rw_lba48(uc_priv, blknr, blkcnt, buffer,
|
|
READ_CMD);
|
|
else
|
|
rc = ata_low_level_rw_lba28(uc_priv, blknr, blkcnt, buffer,
|
|
READ_CMD);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static ulong sata_write_common(struct ahci_uc_priv *uc_priv,
|
|
struct blk_device *desc, ulong blknr,
|
|
lbaint_t blkcnt, const void *buffer)
|
|
{
|
|
u32 rc;
|
|
u32 flags = uc_priv->flags;
|
|
|
|
if (desc->lba48)
|
|
{
|
|
rc = ata_low_level_rw_lba48(uc_priv, blknr, blkcnt, buffer,
|
|
WRITE_CMD);
|
|
if ((flags & SATA_FLAG_WCACHE) && (flags & SATA_FLAG_FLUSH_EXT))
|
|
dwc_ahsata_flush_cache_ext(uc_priv);
|
|
}
|
|
else
|
|
{
|
|
rc = ata_low_level_rw_lba28(uc_priv, blknr, blkcnt, buffer,
|
|
WRITE_CMD);
|
|
if ((flags & SATA_FLAG_WCACHE) && (flags & SATA_FLAG_FLUSH))
|
|
dwc_ahsata_flush_cache(uc_priv);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
#if !CONFIG_IS_ENABLED(AHCI)
|
|
static int ahci_init_one(int pdev)
|
|
{
|
|
int rc;
|
|
struct ahci_uc_priv *uc_priv = NULL;
|
|
|
|
uc_priv = malloc(sizeof(struct ahci_uc_priv));
|
|
if (!uc_priv)
|
|
return -ENOMEM;
|
|
|
|
memset(uc_priv, 0, sizeof(struct ahci_uc_priv));
|
|
uc_priv->dev = pdev;
|
|
|
|
uc_priv->host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | ATA_FLAG_NO_ATAPI;
|
|
|
|
uc_priv->mmio_base = (void __iomem *)CONFIG_DWC_AHSATA_BASE_ADDR;
|
|
|
|
/* initialize adapter */
|
|
rc = ahci_host_init(uc_priv);
|
|
if (rc)
|
|
goto err_out;
|
|
|
|
ahci_print_info(uc_priv);
|
|
|
|
/* Save the uc_private struct to block device struct */
|
|
sata_dev_desc[pdev].priv = uc_priv;
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
if (uc_priv)
|
|
free(uc_priv);
|
|
return rc;
|
|
}
|
|
|
|
int init_sata(int dev)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = NULL;
|
|
|
|
#if defined(CONFIG_MX6)
|
|
if (!is_mx6dq() && !is_mx6dqp())
|
|
return 1;
|
|
#endif
|
|
if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1))
|
|
{
|
|
rt_kprintf("The sata index %d is out of ranges\n\r", dev);
|
|
return -1;
|
|
}
|
|
|
|
ahci_init_one(dev);
|
|
|
|
uc_priv = sata_dev_desc[dev].priv;
|
|
|
|
return dwc_ahci_start_ports(uc_priv) ? 1 : 0;
|
|
}
|
|
|
|
int reset_sata(int dev)
|
|
{
|
|
struct ahci_uc_priv *uc_priv;
|
|
struct sata_host_regs *host_mmio;
|
|
|
|
if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1))
|
|
{
|
|
rt_kprintf("The sata index %d is out of ranges\n\r", dev);
|
|
return -1;
|
|
}
|
|
|
|
uc_priv = sata_dev_desc[dev].priv;
|
|
if (NULL == uc_priv)
|
|
/* not initialized, so nothing to reset */
|
|
return 0;
|
|
|
|
host_mmio = uc_priv->mmio_base;
|
|
setbits_le32(&host_mmio->ghc, SATA_HOST_GHC_HR);
|
|
while (readl(&host_mmio->ghc) & SATA_HOST_GHC_HR)
|
|
udelay(100);
|
|
|
|
free(uc_priv);
|
|
memset(&sata_dev_desc[dev], 0, sizeof(struct blk_desc));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int sata_port_status(int dev, int port)
|
|
{
|
|
struct sata_port_regs *port_mmio;
|
|
struct ahci_uc_priv *uc_priv = NULL;
|
|
|
|
if (dev < 0 || dev > (CONFIG_SYS_SATA_MAX_DEVICE - 1))
|
|
return -EINVAL;
|
|
|
|
if (sata_dev_desc[dev].priv == NULL)
|
|
return -ENODEV;
|
|
|
|
uc_priv = sata_dev_desc[dev].priv;
|
|
port_mmio = uc_priv->port[port].port_mmio;
|
|
|
|
return readl(&port_mmio->ssts) & SATA_PORT_SSTS_DET_MASK;
|
|
}
|
|
|
|
/*
|
|
* SATA interface between low level driver and command layer
|
|
*/
|
|
ulong sata_read(int dev, ulong blknr, lbaint_t blkcnt, void *buffer)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = sata_dev_desc[dev].priv;
|
|
|
|
return sata_read_common(uc_priv, &sata_dev_desc[dev], blknr, blkcnt,
|
|
buffer);
|
|
}
|
|
|
|
ulong sata_write(int dev, ulong blknr, lbaint_t blkcnt, const void *buffer)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = sata_dev_desc[dev].priv;
|
|
|
|
return sata_write_common(uc_priv, &sata_dev_desc[dev], blknr, blkcnt,
|
|
buffer);
|
|
}
|
|
|
|
int scan_sata(int dev)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = sata_dev_desc[dev].priv;
|
|
struct blk_desc *pdev = &sata_dev_desc[dev];
|
|
|
|
return dwc_ahsata_scan_common(uc_priv, pdev);
|
|
}
|
|
#endif /* CONFIG_IS_ENABLED(AHCI) */
|
|
|
|
#if CONFIG_IS_ENABLED(AHCI)
|
|
|
|
int dwc_ahsata_port_status(struct rt_device *dev, int port)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = (struct ahci_uc_priv *)dev;
|
|
struct sata_port_regs *port_mmio;
|
|
|
|
port_mmio = uc_priv->port[port].port_mmio;
|
|
return readl(&port_mmio->ssts) & SATA_PORT_SSTS_DET_MASK ? 0 : -ENXIO;
|
|
}
|
|
|
|
int dwc_ahsata_bus_reset(struct rt_device *dev)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = (struct ahci_uc_priv *)dev;
|
|
struct sata_host_regs *host_mmio = uc_priv->mmio_base;
|
|
|
|
setbits_le32(&host_mmio->ghc, SATA_HOST_GHC_HR);
|
|
|
|
while (readl(&host_mmio->ghc) & SATA_HOST_GHC_HR)
|
|
{
|
|
udelay(100);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dwc_ahsata_scan(struct rt_device *dev)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = (struct ahci_uc_priv *)dev;
|
|
struct blk_device *blk;
|
|
rt_err_t ret;
|
|
|
|
blk = (struct blk_device *)rt_device_create(RT_Device_Class_Block, sizeof(struct blk_device) - sizeof(struct rt_device));
|
|
blk->parent.init = NULL;
|
|
blk->parent.open = NULL;
|
|
blk->parent.close = NULL;
|
|
blk->parent.control = dwc_ahsata_control;
|
|
blk->parent.read = dwc_ahsata_read;
|
|
blk->parent.write = dwc_ahsata_write;
|
|
blk->ahci_device = uc_priv;
|
|
blk->blksz = 512;
|
|
blk->log2blksz = 9;
|
|
blk->lba = 0;
|
|
ret = rt_device_register((rt_device_t)blk, "dwc_ahsata_blk", RT_DEVICE_FLAG_RDWR);
|
|
|
|
if (ret != RT_EOK)
|
|
{
|
|
debug("Can't create device\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = dwc_ahsata_scan_common(uc_priv, blk);
|
|
|
|
if (ret)
|
|
{
|
|
debug("%s: Failed to scan bus\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dwc_ahsata_probe(struct rt_device *dev)
|
|
{
|
|
struct ahci_uc_priv *uc_priv = (struct ahci_uc_priv *)dev;
|
|
int ret;
|
|
|
|
uc_priv->host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
|
|
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | ATA_FLAG_NO_ATAPI;
|
|
|
|
/* initialize adapter */
|
|
ret = ahci_host_init(uc_priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ahci_print_info(uc_priv);
|
|
|
|
return dwc_ahci_start_ports(uc_priv);
|
|
}
|
|
|
|
rt_size_t dwc_ahsata_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
|
|
{
|
|
struct blk_device *blk = (struct blk_device *)dev;
|
|
return sata_read_common(blk->ahci_device, blk, pos, size, buffer);
|
|
}
|
|
|
|
rt_size_t dwc_ahsata_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
|
|
{
|
|
struct blk_device *blk = (struct blk_device *)dev;
|
|
return sata_write_common(blk->ahci_device, blk, pos, size, buffer);
|
|
}
|
|
|
|
rt_err_t dwc_ahsata_control(rt_device_t dev, int cmd, void *args)
|
|
{
|
|
struct blk_device *blk = (struct blk_device *)dev;
|
|
|
|
switch (cmd)
|
|
{
|
|
case RT_DEVICE_CTRL_BLK_GETGEOME:
|
|
|
|
if (args != NULL)
|
|
{
|
|
struct rt_device_blk_geometry *info = (struct rt_device_blk_geometry *)args;
|
|
info->sector_count = blk->lba;
|
|
info->bytes_per_sector = blk->blksz;
|
|
info->block_size = 0;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
#endif
|