Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-13 22:53:20 +00:00
Code Issues Packages Projects Releases Wiki Activity
8001fa240f
linux/drivers/scsi/mvsas/mv_94xx.c
Thomas Gleixner 873e65bc09 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 
Based on 1 normalized pattern(s):

  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 version 2 of the license 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 if not write to the free
  software foundation inc 59 temple place suite 330 boston ma 02111
  1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 83 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.021731668@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:39 -07:00

1183 lines
29 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-only
/*
* Marvell 88SE94xx hardware specific
*
* Copyright 2007 Red Hat, Inc.
* Copyright 2008 Marvell. <kewei@marvell.com>
* Copyright 2009-2011 Marvell. <yuxiangl@marvell.com>
*/
#include "mv_sas.h"
#include "mv_94xx.h"
#include "mv_chips.h"
static void mvs_94xx_detect_porttype(struct mvs_info *mvi, int i)
{
u32 reg;
struct mvs_phy *phy = &mvi->phy[i];
u32 phy_status;
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE3);
reg = mvs_read_port_vsr_data(mvi, i);
phy_status = ((reg & 0x3f0000) >> 16) & 0xff;
phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
switch (phy_status) {
case 0x10:
phy->phy_type |= PORT_TYPE_SAS;
break;
case 0x1d:
default:
phy->phy_type |= PORT_TYPE_SATA;
break;
}
}
static void set_phy_tuning(struct mvs_info *mvi, int phy_id,
struct phy_tuning phy_tuning)
{
u32 tmp, setting_0 = 0, setting_1 = 0;
u8 i;
/* Remap information for B0 chip:
*
* R0Ch -> R118h[15:0] (Adapted DFE F3 - F5 coefficient)
* R0Dh -> R118h[31:16] (Generation 1 Setting 0)
* R0Eh -> R11Ch[15:0] (Generation 1 Setting 1)
* R0Fh -> R11Ch[31:16] (Generation 2 Setting 0)
* R10h -> R120h[15:0] (Generation 2 Setting 1)
* R11h -> R120h[31:16] (Generation 3 Setting 0)
* R12h -> R124h[15:0] (Generation 3 Setting 1)
* R13h -> R124h[31:16] (Generation 4 Setting 0 (Reserved))
*/
/* A0 has a different set of registers */
if (mvi->pdev->revision == VANIR_A0_REV)
return;
for (i = 0; i < 3; i++) {
/* loop 3 times, set Gen 1, Gen 2, Gen 3 */
switch (i) {
case 0:
setting_0 = GENERATION_1_SETTING;
setting_1 = GENERATION_1_2_SETTING;
break;
case 1:
setting_0 = GENERATION_1_2_SETTING;
setting_1 = GENERATION_2_3_SETTING;
break;
case 2:
setting_0 = GENERATION_2_3_SETTING;
setting_1 = GENERATION_3_4_SETTING;
break;
}
/* Set:
*
* Transmitter Emphasis Enable
* Transmitter Emphasis Amplitude
* Transmitter Amplitude
*/
mvs_write_port_vsr_addr(mvi, phy_id, setting_0);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~(0xFBE << 16);
tmp |= (((phy_tuning.trans_emp_en << 11) |
(phy_tuning.trans_emp_amp << 7) |
(phy_tuning.trans_amp << 1)) << 16);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* Set Transmitter Amplitude Adjust */
mvs_write_port_vsr_addr(mvi, phy_id, setting_1);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~(0xC000);
tmp |= (phy_tuning.trans_amp_adj << 14);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
}
}
static void set_phy_ffe_tuning(struct mvs_info *mvi, int phy_id,
struct ffe_control ffe)
{
u32 tmp;
/* Don't run this if A0/B0 */
if ((mvi->pdev->revision == VANIR_A0_REV)
|| (mvi->pdev->revision == VANIR_B0_REV))
return;
/* FFE Resistor and Capacitor */
/* R10Ch DFE Resolution Control/Squelch and FFE Setting
*
* FFE_FORCE [7]
* FFE_RES_SEL [6:4]
* FFE_CAP_SEL [3:0]
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_FFE_CONTROL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0xFF;
/* Read from HBA_Info_Page */
tmp |= ((0x1 << 7) |
(ffe.ffe_rss_sel << 4) |
(ffe.ffe_cap_sel << 0));
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* R064h PHY Mode Register 1
*
* DFE_DIS 18
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_REF_CLOCK_CRTL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0x40001;
/* Hard coding */
/* No defines in HBA_Info_Page */
tmp |= (0 << 18);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* R110h DFE F0-F1 Coefficient Control/DFE Update Control
*
* DFE_UPDATE_EN [11:6]
* DFE_FX_FORCE [5:0]
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_DFE_UPDATE_CRTL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0xFFF;
/* Hard coding */
/* No defines in HBA_Info_Page */
tmp |= ((0x3F << 6) | (0x0 << 0));
mvs_write_port_vsr_data(mvi, phy_id, tmp);
/* R1A0h Interface and Digital Reference Clock Control/Reserved_50h
*
* FFE_TRAIN_EN 3
*/
mvs_write_port_vsr_addr(mvi, phy_id, VSR_REF_CLOCK_CRTL);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp &= ~0x8;
/* Hard coding */
/* No defines in HBA_Info_Page */
tmp |= (0 << 3);
mvs_write_port_vsr_data(mvi, phy_id, tmp);
}
/*Notice: this function must be called when phy is disabled*/
static void set_phy_rate(struct mvs_info *mvi, int phy_id, u8 rate)
{
union reg_phy_cfg phy_cfg, phy_cfg_tmp;
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
phy_cfg_tmp.v = mvs_read_port_vsr_data(mvi, phy_id);
phy_cfg.v = 0;
phy_cfg.u.disable_phy = phy_cfg_tmp.u.disable_phy;
phy_cfg.u.sas_support = 1;
phy_cfg.u.sata_support = 1;
phy_cfg.u.sata_host_mode = 1;
switch (rate) {
case 0x0:
/* support 1.5 Gbps */
phy_cfg.u.speed_support = 1;
phy_cfg.u.snw_3_support = 0;
phy_cfg.u.tx_lnk_parity = 1;
phy_cfg.u.tx_spt_phs_lnk_rate = 0x30;
break;
case 0x1:
/* support 1.5, 3.0 Gbps */
phy_cfg.u.speed_support = 3;
phy_cfg.u.tx_spt_phs_lnk_rate = 0x3c;
phy_cfg.u.tx_lgcl_lnk_rate = 0x08;
break;
case 0x2:
default:
/* support 1.5, 3.0, 6.0 Gbps */
phy_cfg.u.speed_support = 7;
phy_cfg.u.snw_3_support = 1;
phy_cfg.u.tx_lnk_parity = 1;
phy_cfg.u.tx_spt_phs_lnk_rate = 0x3f;
phy_cfg.u.tx_lgcl_lnk_rate = 0x09;
break;
}
mvs_write_port_vsr_data(mvi, phy_id, phy_cfg.v);
}
static void mvs_94xx_config_reg_from_hba(struct mvs_info *mvi, int phy_id)
{
u32 temp;
temp = (u32)(*(u32 *)&mvi->hba_info_param.phy_tuning[phy_id]);
if (temp == 0xFFFFFFFFL) {
mvi->hba_info_param.phy_tuning[phy_id].trans_emp_amp = 0x6;
mvi->hba_info_param.phy_tuning[phy_id].trans_amp = 0x1A;
mvi->hba_info_param.phy_tuning[phy_id].trans_amp_adj = 0x3;
}
temp = (u8)(*(u8 *)&mvi->hba_info_param.ffe_ctl[phy_id]);
if (temp == 0xFFL) {
switch (mvi->pdev->revision) {
case VANIR_A0_REV:
case VANIR_B0_REV:
mvi->hba_info_param.ffe_ctl[phy_id].ffe_rss_sel = 0x7;
mvi->hba_info_param.ffe_ctl[phy_id].ffe_cap_sel = 0x7;
break;
case VANIR_C0_REV:
case VANIR_C1_REV:
case VANIR_C2_REV:
default:
mvi->hba_info_param.ffe_ctl[phy_id].ffe_rss_sel = 0x7;
mvi->hba_info_param.ffe_ctl[phy_id].ffe_cap_sel = 0xC;
break;
}
}
temp = (u8)(*(u8 *)&mvi->hba_info_param.phy_rate[phy_id]);
if (temp == 0xFFL)
/*set default phy_rate = 6Gbps*/
mvi->hba_info_param.phy_rate[phy_id] = 0x2;
set_phy_tuning(mvi, phy_id,
mvi->hba_info_param.phy_tuning[phy_id]);
set_phy_ffe_tuning(mvi, phy_id,
mvi->hba_info_param.ffe_ctl[phy_id]);
set_phy_rate(mvi, phy_id,
mvi->hba_info_param.phy_rate[phy_id]);
}
static void mvs_94xx_enable_xmt(struct mvs_info *mvi, int phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_PCS);
tmp |= 1 << (phy_id + PCS_EN_PORT_XMT_SHIFT2);
mw32(MVS_PCS, tmp);
}
static void mvs_94xx_phy_reset(struct mvs_info *mvi, u32 phy_id, int hard)
{
u32 tmp;
u32 delay = 5000;
if (hard == MVS_PHY_TUNE) {
mvs_write_port_cfg_addr(mvi, phy_id, PHYR_SATA_CTL);
tmp = mvs_read_port_cfg_data(mvi, phy_id);
mvs_write_port_cfg_data(mvi, phy_id, tmp|0x20000000);
mvs_write_port_cfg_data(mvi, phy_id, tmp|0x100000);
return;
}
tmp = mvs_read_port_irq_stat(mvi, phy_id);
tmp &= ~PHYEV_RDY_CH;
mvs_write_port_irq_stat(mvi, phy_id, tmp);
if (hard) {
tmp = mvs_read_phy_ctl(mvi, phy_id);
tmp |= PHY_RST_HARD;
mvs_write_phy_ctl(mvi, phy_id, tmp);
do {
tmp = mvs_read_phy_ctl(mvi, phy_id);
udelay(10);
delay--;
} while ((tmp & PHY_RST_HARD) && delay);
if (!delay)
mv_dprintk("phy hard reset failed.\n");
} else {
tmp = mvs_read_phy_ctl(mvi, phy_id);
tmp |= PHY_RST;
mvs_write_phy_ctl(mvi, phy_id, tmp);
}
}
static void mvs_94xx_phy_disable(struct mvs_info *mvi, u32 phy_id)
{
u32 tmp;
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
mvs_write_port_vsr_data(mvi, phy_id, tmp | 0x00800000);
}
static void mvs_94xx_phy_enable(struct mvs_info *mvi, u32 phy_id)
{
u32 tmp;
u8 revision = 0;
revision = mvi->pdev->revision;
if (revision == VANIR_A0_REV) {
mvs_write_port_vsr_addr(mvi, phy_id, CMD_HOST_RD_DATA);
mvs_write_port_vsr_data(mvi, phy_id, 0x8300ffc1);
}
if (revision == VANIR_B0_REV) {
mvs_write_port_vsr_addr(mvi, phy_id, CMD_APP_MEM_CTL);
mvs_write_port_vsr_data(mvi, phy_id, 0x08001006);
mvs_write_port_vsr_addr(mvi, phy_id, CMD_HOST_RD_DATA);
mvs_write_port_vsr_data(mvi, phy_id, 0x0000705f);
}
mvs_write_port_vsr_addr(mvi, phy_id, VSR_PHY_MODE2);
tmp = mvs_read_port_vsr_data(mvi, phy_id);
tmp |= bit(0);
mvs_write_port_vsr_data(mvi, phy_id, tmp & 0xfd7fffff);
}
static void mvs_94xx_sgpio_init(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
u32 tmp;
tmp = mr32(MVS_HST_CHIP_CONFIG);
tmp |= 0x100;
mw32(MVS_HST_CHIP_CONFIG, tmp);
mw32(MVS_SGPIO_CTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
MVS_SGPIO_CTRL_SDOUT_AUTO << MVS_SGPIO_CTRL_SDOUT_SHIFT);
mw32(MVS_SGPIO_CFG1 + MVS_SGPIO_HOST_OFFSET * mvi->id,
8 << MVS_SGPIO_CFG1_LOWA_SHIFT |
8 << MVS_SGPIO_CFG1_HIA_SHIFT |
4 << MVS_SGPIO_CFG1_LOWB_SHIFT |
4 << MVS_SGPIO_CFG1_HIB_SHIFT |
2 << MVS_SGPIO_CFG1_MAXACTON_SHIFT |
1 << MVS_SGPIO_CFG1_FORCEACTOFF_SHIFT
);
mw32(MVS_SGPIO_CFG2 + MVS_SGPIO_HOST_OFFSET * mvi->id,
(300000 / 100) << MVS_SGPIO_CFG2_CLK_SHIFT | /* 100kHz clock */
66 << MVS_SGPIO_CFG2_BLINK_SHIFT /* (66 * 0,121 Hz?)*/
);
mw32(MVS_SGPIO_CFG0 + MVS_SGPIO_HOST_OFFSET * mvi->id,
MVS_SGPIO_CFG0_ENABLE |
MVS_SGPIO_CFG0_BLINKA |
MVS_SGPIO_CFG0_BLINKB |
/* 3*4 data bits / PDU */
(12 - 1) << MVS_SGPIO_CFG0_AUT_BITLEN_SHIFT
);
mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
DEFAULT_SGPIO_BITS);
mw32(MVS_SGPIO_DSRC + MVS_SGPIO_HOST_OFFSET * mvi->id,
((mvi->id * 4) + 3) << (8 * 3) |
((mvi->id * 4) + 2) << (8 * 2) |
((mvi->id * 4) + 1) << (8 * 1) |
((mvi->id * 4) + 0) << (8 * 0));
}
static int mvs_94xx_init(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
int i;
u32 tmp, cctl;
u8 revision;
revision = mvi->pdev->revision;
mvs_show_pcie_usage(mvi);
if (mvi->flags & MVF_FLAG_SOC) {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
mw32(MVS_PHY_CTL, tmp);
}
/* Init Chip */
/* make sure RST is set; HBA_RST /should/ have done that for us */
cctl = mr32(MVS_CTL) & 0xFFFF;
if (cctl & CCTL_RST)
cctl &= ~CCTL_RST;
else
mw32_f(MVS_CTL, cctl | CCTL_RST);
if (mvi->flags & MVF_FLAG_SOC) {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_COM_ON;
tmp &= ~PCTL_PHY_DSBL;
tmp |= PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
tmp &= ~PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
}
/* disable Multiplexing, enable phy implemented */
mw32(MVS_PORTS_IMP, 0xFF);
if (revision == VANIR_A0_REV) {
mw32(MVS_PA_VSR_ADDR, CMD_CMWK_OOB_DET);
mw32(MVS_PA_VSR_PORT, 0x00018080);
}
mw32(MVS_PA_VSR_ADDR, VSR_PHY_MODE2);
if (revision == VANIR_A0_REV || revision == VANIR_B0_REV)
/* set 6G/3G/1.5G, multiplexing, without SSC */
mw32(MVS_PA_VSR_PORT, 0x0084d4fe);
else
/* set 6G/3G/1.5G, multiplexing, with and without SSC */
mw32(MVS_PA_VSR_PORT, 0x0084fffe);
if (revision == VANIR_B0_REV) {
mw32(MVS_PA_VSR_ADDR, CMD_APP_MEM_CTL);
mw32(MVS_PA_VSR_PORT, 0x08001006);
mw32(MVS_PA_VSR_ADDR, CMD_HOST_RD_DATA);
mw32(MVS_PA_VSR_PORT, 0x0000705f);
}
/* reset control */
mw32(MVS_PCS, 0); /* MVS_PCS */
mw32(MVS_STP_REG_SET_0, 0);
mw32(MVS_STP_REG_SET_1, 0);
/* init phys */
mvs_phy_hacks(mvi);
/* disable non data frame retry */
tmp = mvs_cr32(mvi, CMD_SAS_CTL1);
if ((revision == VANIR_A0_REV) ||
(revision == VANIR_B0_REV) ||
(revision == VANIR_C0_REV)) {
tmp &= ~0xffff;
tmp |= 0x007f;
mvs_cw32(mvi, CMD_SAS_CTL1, tmp);
}
/* set LED blink when IO*/
mw32(MVS_PA_VSR_ADDR, VSR_PHY_ACT_LED);
tmp = mr32(MVS_PA_VSR_PORT);
tmp &= 0xFFFF00FF;
tmp |= 0x00003300;
mw32(MVS_PA_VSR_PORT, tmp);
mw32(MVS_CMD_LIST_LO, mvi->slot_dma);
mw32(MVS_CMD_LIST_HI, (mvi->slot_dma >> 16) >> 16);
mw32(MVS_RX_FIS_LO, mvi->rx_fis_dma);
mw32(MVS_RX_FIS_HI, (mvi->rx_fis_dma >> 16) >> 16);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ);
mw32(MVS_TX_LO, mvi->tx_dma);
mw32(MVS_TX_HI, (mvi->tx_dma >> 16) >> 16);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ);
mw32(MVS_RX_LO, mvi->rx_dma);
mw32(MVS_RX_HI, (mvi->rx_dma >> 16) >> 16);
for (i = 0; i < mvi->chip->n_phy; i++) {
mvs_94xx_phy_disable(mvi, i);
/* set phy local SAS address */
mvs_set_sas_addr(mvi, i, CONFIG_ID_FRAME3, CONFIG_ID_FRAME4,
cpu_to_le64(mvi->phy[i].dev_sas_addr));
mvs_94xx_enable_xmt(mvi, i);
mvs_94xx_config_reg_from_hba(mvi, i);
mvs_94xx_phy_enable(mvi, i);
mvs_94xx_phy_reset(mvi, i, PHY_RST_HARD);
msleep(500);
mvs_94xx_detect_porttype(mvi, i);
}
if (mvi->flags & MVF_FLAG_SOC) {
/* set select registers */
writel(0x0E008000, regs + 0x000);
writel(0x59000008, regs + 0x004);
writel(0x20, regs + 0x008);
writel(0x20, regs + 0x00c);
writel(0x20, regs + 0x010);
writel(0x20, regs + 0x014);
writel(0x20, regs + 0x018);
writel(0x20, regs + 0x01c);
}
for (i = 0; i < mvi->chip->n_phy; i++) {
/* clear phy int status */
tmp = mvs_read_port_irq_stat(mvi, i);
tmp &= ~PHYEV_SIG_FIS;
mvs_write_port_irq_stat(mvi, i, tmp);
/* set phy int mask */
tmp = PHYEV_RDY_CH | PHYEV_BROAD_CH |
PHYEV_ID_DONE | PHYEV_DCDR_ERR | PHYEV_CRC_ERR ;
mvs_write_port_irq_mask(mvi, i, tmp);
msleep(100);
mvs_update_phyinfo(mvi, i, 1);
}
/* little endian for open address and command table, etc. */
cctl = mr32(MVS_CTL);
cctl |= CCTL_ENDIAN_CMD;
cctl &= ~CCTL_ENDIAN_OPEN;
cctl |= CCTL_ENDIAN_RSP;
mw32_f(MVS_CTL, cctl);
/* reset CMD queue */
tmp = mr32(MVS_PCS);
tmp |= PCS_CMD_RST;
tmp &= ~PCS_SELF_CLEAR;
mw32(MVS_PCS, tmp);
/*
* the max count is 0x1ff, while our max slot is 0x200,
* it will make count 0.
*/
tmp = 0;
if (MVS_CHIP_SLOT_SZ > 0x1ff)
mw32(MVS_INT_COAL, 0x1ff | COAL_EN);
else
mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ | COAL_EN);
/* default interrupt coalescing time is 128us */
tmp = 0x10000 | interrupt_coalescing;
mw32(MVS_INT_COAL_TMOUT, tmp);
/* ladies and gentlemen, start your engines */
mw32(MVS_TX_CFG, 0);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ | TX_EN);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ | RX_EN);
/* enable CMD/CMPL_Q/RESP mode */
mw32(MVS_PCS, PCS_SATA_RETRY_2 | PCS_FIS_RX_EN |
PCS_CMD_EN | PCS_CMD_STOP_ERR);
/* enable completion queue interrupt */
tmp = (CINT_PORT_MASK | CINT_DONE | CINT_MEM | CINT_SRS | CINT_CI_STOP |
CINT_DMA_PCIE | CINT_NON_SPEC_NCQ_ERROR);
tmp |= CINT_PHY_MASK;
mw32(MVS_INT_MASK, tmp);
tmp = mvs_cr32(mvi, CMD_LINK_TIMER);
tmp |= 0xFFFF0000;
mvs_cw32(mvi, CMD_LINK_TIMER, tmp);
/* tune STP performance */
tmp = 0x003F003F;
mvs_cw32(mvi, CMD_PL_TIMER, tmp);
/* This can improve expander large block size seq write performance */
tmp = mvs_cr32(mvi, CMD_PORT_LAYER_TIMER1);
tmp |= 0xFFFF007F;
mvs_cw32(mvi, CMD_PORT_LAYER_TIMER1, tmp);
/* change the connection open-close behavior (bit 9)
* set bit8 to 1 for performance tuning */
tmp = mvs_cr32(mvi, CMD_SL_MODE0);
tmp |= 0x00000300;
/* set bit0 to 0 to enable retry for no_dest reject case */
tmp &= 0xFFFFFFFE;
mvs_cw32(mvi, CMD_SL_MODE0, tmp);
/* Enable SRS interrupt */
mw32(MVS_INT_MASK_SRS_0, 0xFFFF);
mvs_94xx_sgpio_init(mvi);
return 0;
}
static int mvs_94xx_ioremap(struct mvs_info *mvi)
{
if (!mvs_ioremap(mvi, 2, -1)) {
mvi->regs_ex = mvi->regs + 0x10200;
mvi->regs += 0x20000;
if (mvi->id == 1)
mvi->regs += 0x4000;
return 0;
}
return -1;
}
static void mvs_94xx_iounmap(struct mvs_info *mvi)
{
if (mvi->regs) {
mvi->regs -= 0x20000;
if (mvi->id == 1)
mvi->regs -= 0x4000;
mvs_iounmap(mvi->regs);
}
}
static void mvs_94xx_interrupt_enable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
tmp |= (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
mw32(MVS_GBL_INT_STAT, tmp);
writel(tmp, regs + 0x0C);
writel(tmp, regs + 0x10);
writel(tmp, regs + 0x14);
writel(tmp, regs + 0x18);
mw32(MVS_GBL_CTL, tmp);
}
static void mvs_94xx_interrupt_disable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
tmp &= ~(MVS_IRQ_SAS_A | MVS_IRQ_SAS_B);
mw32(MVS_GBL_INT_STAT, tmp);
writel(tmp, regs + 0x0C);
writel(tmp, regs + 0x10);
writel(tmp, regs + 0x14);
writel(tmp, regs + 0x18);
mw32(MVS_GBL_CTL, tmp);
}
static u32 mvs_94xx_isr_status(struct mvs_info *mvi, int irq)
{
void __iomem *regs = mvi->regs_ex;
u32 stat = 0;
if (!(mvi->flags & MVF_FLAG_SOC)) {
stat = mr32(MVS_GBL_INT_STAT);
if (!(stat & (MVS_IRQ_SAS_A | MVS_IRQ_SAS_B)))
return 0;
}
return stat;
}
static irqreturn_t mvs_94xx_isr(struct mvs_info *mvi, int irq, u32 stat)
{
void __iomem *regs = mvi->regs;
if (((stat & MVS_IRQ_SAS_A) && mvi->id == 0) ||
((stat & MVS_IRQ_SAS_B) && mvi->id == 1)) {
mw32_f(MVS_INT_STAT, CINT_DONE);
spin_lock(&mvi->lock);
mvs_int_full(mvi);
spin_unlock(&mvi->lock);
}
return IRQ_HANDLED;
}
static void mvs_94xx_command_active(struct mvs_info *mvi, u32 slot_idx)
{
u32 tmp;
tmp = mvs_cr32(mvi, MVS_COMMAND_ACTIVE+(slot_idx >> 3));
if (tmp & 1 << (slot_idx % 32)) {
mv_printk("command active %08X, slot [%x].\n", tmp, slot_idx);
mvs_cw32(mvi, MVS_COMMAND_ACTIVE + (slot_idx >> 3),
1 << (slot_idx % 32));
do {
tmp = mvs_cr32(mvi,
MVS_COMMAND_ACTIVE + (slot_idx >> 3));
} while (tmp & 1 << (slot_idx % 32));
}
}
static void
mvs_94xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (clear_all) {
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp) {
mv_dprintk("check SRS 0 %08X.\n", tmp);
mw32(MVS_INT_STAT_SRS_0, tmp);
}
tmp = mr32(MVS_INT_STAT_SRS_1);
if (tmp) {
mv_dprintk("check SRS 1 %08X.\n", tmp);
mw32(MVS_INT_STAT_SRS_1, tmp);
}
} else {
if (reg_set > 31)
tmp = mr32(MVS_INT_STAT_SRS_1);
else
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp & (1 << (reg_set % 32))) {
mv_dprintk("register set 0x%x was stopped.\n", reg_set);
if (reg_set > 31)
mw32(MVS_INT_STAT_SRS_1, 1 << (reg_set % 32));
else
mw32(MVS_INT_STAT_SRS_0, 1 << (reg_set % 32));
}
}
}
static void mvs_94xx_issue_stop(struct mvs_info *mvi, enum mvs_port_type type,
u32 tfs)
{
void __iomem *regs = mvi->regs;
u32 tmp;
mvs_94xx_clear_srs_irq(mvi, 0, 1);
tmp = mr32(MVS_INT_STAT);
mw32(MVS_INT_STAT, tmp | CINT_CI_STOP);
tmp = mr32(MVS_PCS) | 0xFF00;
mw32(MVS_PCS, tmp);
}
static void mvs_94xx_non_spec_ncq_error(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 err_0, err_1;
u8 i;
struct mvs_device *device;
err_0 = mr32(MVS_NON_NCQ_ERR_0);
err_1 = mr32(MVS_NON_NCQ_ERR_1);
mv_dprintk("non specific ncq error err_0:%x,err_1:%x.\n",
err_0, err_1);
for (i = 0; i < 32; i++) {
if (err_0 & bit(i)) {
device = mvs_find_dev_by_reg_set(mvi, i);
if (device)
mvs_release_task(mvi, device->sas_device);
}
if (err_1 & bit(i)) {
device = mvs_find_dev_by_reg_set(mvi, i+32);
if (device)
mvs_release_task(mvi, device->sas_device);
}
}
mw32(MVS_NON_NCQ_ERR_0, err_0);
mw32(MVS_NON_NCQ_ERR_1, err_1);
}
static void mvs_94xx_free_reg_set(struct mvs_info *mvi, u8 *tfs)
{
void __iomem *regs = mvi->regs;
u8 reg_set = *tfs;
if (*tfs == MVS_ID_NOT_MAPPED)
return;
mvi->sata_reg_set &= ~bit(reg_set);
if (reg_set < 32)
w_reg_set_enable(reg_set, (u32)mvi->sata_reg_set);
else
w_reg_set_enable(reg_set, (u32)(mvi->sata_reg_set >> 32));
*tfs = MVS_ID_NOT_MAPPED;
return;
}
static u8 mvs_94xx_assign_reg_set(struct mvs_info *mvi, u8 *tfs)
{
int i;
void __iomem *regs = mvi->regs;
if (*tfs != MVS_ID_NOT_MAPPED)
return 0;
i = mv_ffc64(mvi->sata_reg_set);
if (i >= 32) {
mvi->sata_reg_set |= bit(i);
w_reg_set_enable(i, (u32)(mvi->sata_reg_set >> 32));
*tfs = i;
return 0;
} else if (i >= 0) {
mvi->sata_reg_set |= bit(i);
w_reg_set_enable(i, (u32)mvi->sata_reg_set);
*tfs = i;
return 0;
}
return MVS_ID_NOT_MAPPED;
}
static void mvs_94xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
{
int i;
struct scatterlist *sg;
struct mvs_prd *buf_prd = prd;
struct mvs_prd_imt im_len;
*(u32 *)&im_len = 0;
for_each_sg(scatter, sg, nr, i) {
buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
im_len.len = sg_dma_len(sg);
buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
buf_prd++;
}
}
static int mvs_94xx_oob_done(struct mvs_info *mvi, int i)
{
u32 phy_st;
phy_st = mvs_read_phy_ctl(mvi, i);
if (phy_st & PHY_READY_MASK)
return 1;
return 0;
}
static void mvs_94xx_get_dev_identify_frame(struct mvs_info *mvi, int port_id,
struct sas_identify_frame *id)
{
int i;
u32 id_frame[7];
for (i = 0; i < 7; i++) {
mvs_write_port_cfg_addr(mvi, port_id,
CONFIG_ID_FRAME0 + i * 4);
id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
}
memcpy(id, id_frame, 28);
}
static void mvs_94xx_get_att_identify_frame(struct mvs_info *mvi, int port_id,
struct sas_identify_frame *id)
{
int i;
u32 id_frame[7];
for (i = 0; i < 7; i++) {
mvs_write_port_cfg_addr(mvi, port_id,
CONFIG_ATT_ID_FRAME0 + i * 4);
id_frame[i] = cpu_to_le32(mvs_read_port_cfg_data(mvi, port_id));
mv_dprintk("94xx phy %d atta frame %d %x.\n",
port_id + mvi->id * mvi->chip->n_phy, i, id_frame[i]);
}
memcpy(id, id_frame, 28);
}
static u32 mvs_94xx_make_dev_info(struct sas_identify_frame *id)
{
u32 att_dev_info = 0;
att_dev_info |= id->dev_type;
if (id->stp_iport)
att_dev_info |= PORT_DEV_STP_INIT;
if (id->smp_iport)
att_dev_info |= PORT_DEV_SMP_INIT;
if (id->ssp_iport)
att_dev_info |= PORT_DEV_SSP_INIT;
if (id->stp_tport)
att_dev_info |= PORT_DEV_STP_TRGT;
if (id->smp_tport)
att_dev_info |= PORT_DEV_SMP_TRGT;
if (id->ssp_tport)
att_dev_info |= PORT_DEV_SSP_TRGT;
att_dev_info |= (u32)id->phy_id<<24;
return att_dev_info;
}
static u32 mvs_94xx_make_att_info(struct sas_identify_frame *id)
{
return mvs_94xx_make_dev_info(id);
}
static void mvs_94xx_fix_phy_info(struct mvs_info *mvi, int i,
struct sas_identify_frame *id)
{
struct mvs_phy *phy = &mvi->phy[i];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
mv_dprintk("get all reg link rate is 0x%x\n", phy->phy_status);
sas_phy->linkrate =
(phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
sas_phy->linkrate += 0x8;
mv_dprintk("get link rate is %d\n", sas_phy->linkrate);
phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
mvs_94xx_get_dev_identify_frame(mvi, i, id);
phy->dev_info = mvs_94xx_make_dev_info(id);
if (phy->phy_type & PORT_TYPE_SAS) {
mvs_94xx_get_att_identify_frame(mvi, i, id);
phy->att_dev_info = mvs_94xx_make_att_info(id);
phy->att_dev_sas_addr = *(u64 *)id->sas_addr;
} else {
phy->att_dev_info = PORT_DEV_STP_TRGT | 1;
}
/* enable spin up bit */
mvs_write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
mvs_write_port_cfg_data(mvi, i, 0x04);
}
static void mvs_94xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
struct sas_phy_linkrates *rates)
{
u32 lrmax = 0;
u32 tmp;
tmp = mvs_read_phy_ctl(mvi, phy_id);
lrmax = (rates->maximum_linkrate - SAS_LINK_RATE_1_5_GBPS) << 12;
if (lrmax) {
tmp &= ~(0x3 << 12);
tmp |= lrmax;
}
mvs_write_phy_ctl(mvi, phy_id, tmp);
mvs_94xx_phy_reset(mvi, phy_id, PHY_RST_HARD);
}
static void mvs_94xx_clear_active_cmds(struct mvs_info *mvi)
{
u32 tmp;
void __iomem *regs = mvi->regs;
tmp = mr32(MVS_STP_REG_SET_0);
mw32(MVS_STP_REG_SET_0, 0);
mw32(MVS_STP_REG_SET_0, tmp);
tmp = mr32(MVS_STP_REG_SET_1);
mw32(MVS_STP_REG_SET_1, 0);
mw32(MVS_STP_REG_SET_1, tmp);
}
static u32 mvs_94xx_spi_read_data(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
return mr32(SPI_RD_DATA_REG_94XX);
}
static void mvs_94xx_spi_write_data(struct mvs_info *mvi, u32 data)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(SPI_RD_DATA_REG_94XX, data);
}
static int mvs_94xx_spi_buildcmd(struct mvs_info *mvi,
u32 *dwCmd,
u8 cmd,
u8 read,
u8 length,
u32 addr
)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
u32 dwTmp;
dwTmp = ((u32)cmd << 8) | ((u32)length << 4);
if (read)
dwTmp |= SPI_CTRL_READ_94XX;
if (addr != MV_MAX_U32) {
mw32(SPI_ADDR_REG_94XX, (addr & 0x0003FFFFL));
dwTmp |= SPI_ADDR_VLD_94XX;
}
*dwCmd = dwTmp;
return 0;
}
static int mvs_94xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(SPI_CTRL_REG_94XX, cmd | SPI_CTRL_SpiStart_94XX);
return 0;
}
static int mvs_94xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
{
void __iomem *regs = mvi->regs_ex - 0x10200;
u32 i, dwTmp;
for (i = 0; i < timeout; i++) {
dwTmp = mr32(SPI_CTRL_REG_94XX);
if (!(dwTmp & SPI_CTRL_SpiStart_94XX))
return 0;
msleep(10);
}
return -1;
}
static void mvs_94xx_fix_dma(struct mvs_info *mvi, u32 phy_mask,
int buf_len, int from, void *prd)
{
int i;
struct mvs_prd *buf_prd = prd;
dma_addr_t buf_dma;
struct mvs_prd_imt im_len;
*(u32 *)&im_len = 0;
buf_prd += from;
#define PRD_CHAINED_ENTRY 0x01
if ((mvi->pdev->revision == VANIR_A0_REV) ||
(mvi->pdev->revision == VANIR_B0_REV))
buf_dma = (phy_mask <= 0x08) ?
mvi->bulk_buffer_dma : mvi->bulk_buffer_dma1;
else
return;
for (i = from; i < MAX_SG_ENTRY; i++, ++buf_prd) {
if (i == MAX_SG_ENTRY - 1) {
buf_prd->addr = cpu_to_le64(virt_to_phys(buf_prd - 1));
im_len.len = 2;
im_len.misc_ctl = PRD_CHAINED_ENTRY;
} else {
buf_prd->addr = cpu_to_le64(buf_dma);
im_len.len = buf_len;
}
buf_prd->im_len = cpu_to_le32(*(u32 *)&im_len);
}
}
static void mvs_94xx_tune_interrupt(struct mvs_info *mvi, u32 time)
{
void __iomem *regs = mvi->regs;
u32 tmp = 0;
/*
* the max count is 0x1ff, while our max slot is 0x200,
* it will make count 0.
*/
if (time == 0) {
mw32(MVS_INT_COAL, 0);
mw32(MVS_INT_COAL_TMOUT, 0x10000);
} else {
if (MVS_CHIP_SLOT_SZ > 0x1ff)
mw32(MVS_INT_COAL, 0x1ff|COAL_EN);
else
mw32(MVS_INT_COAL, MVS_CHIP_SLOT_SZ|COAL_EN);
tmp = 0x10000 | time;
mw32(MVS_INT_COAL_TMOUT, tmp);
}
}
static int mvs_94xx_gpio_write(struct mvs_prv_info *mvs_prv,
u8 reg_type, u8 reg_index,
u8 reg_count, u8 *write_data)
{
int i;
switch (reg_type) {
case SAS_GPIO_REG_TX_GP:
if (reg_index == 0)
return -EINVAL;
if (reg_count > 1)
return -EINVAL;
if (reg_count == 0)
return 0;
/* maximum supported bits = hosts * 4 drives * 3 bits */
for (i = 0; i < mvs_prv->n_host * 4 * 3; i++) {
/* select host */
struct mvs_info *mvi = mvs_prv->mvi[i/(4*3)];
void __iomem *regs = mvi->regs_ex - 0x10200;
int drive = (i/3) & (4-1); /* drive number on host */
int driveshift = drive * 8; /* bit offset of drive */
u32 block = ioread32be(regs + MVS_SGPIO_DCTRL +
MVS_SGPIO_HOST_OFFSET * mvi->id);
/*
* if bit is set then create a mask with the first
* bit of the drive set in the mask ...
*/
u32 bit = get_unaligned_be32(write_data) & (1 << i) ?
1 << driveshift : 0;
/*
* ... and then shift it to the right position based
* on the led type (activity/id/fail)
*/
switch (i%3) {
case 0: /* activity */
block &= ~((0x7 << MVS_SGPIO_DCTRL_ACT_SHIFT)
<< driveshift);
/* hardwire activity bit to SOF */
block |= LED_BLINKA_SOF << (
MVS_SGPIO_DCTRL_ACT_SHIFT +
driveshift);
break;
case 1: /* id */
block &= ~((0x3 << MVS_SGPIO_DCTRL_LOC_SHIFT)
<< driveshift);
block |= bit << MVS_SGPIO_DCTRL_LOC_SHIFT;
break;
case 2: /* fail */
block &= ~((0x7 << MVS_SGPIO_DCTRL_ERR_SHIFT)
<< driveshift);
block |= bit << MVS_SGPIO_DCTRL_ERR_SHIFT;
break;
}
iowrite32be(block,
regs + MVS_SGPIO_DCTRL +
MVS_SGPIO_HOST_OFFSET * mvi->id);
}
return reg_count;
case SAS_GPIO_REG_TX:
if (reg_index + reg_count > mvs_prv->n_host)
return -EINVAL;
for (i = 0; i < reg_count; i++) {
struct mvs_info *mvi = mvs_prv->mvi[i+reg_index];
void __iomem *regs = mvi->regs_ex - 0x10200;
mw32(MVS_SGPIO_DCTRL + MVS_SGPIO_HOST_OFFSET * mvi->id,
((u32 *) write_data)[i]);
}
return reg_count;
}
return -ENOSYS;
}
const struct mvs_dispatch mvs_94xx_dispatch = {
"mv94xx",
mvs_94xx_init,
NULL,
mvs_94xx_ioremap,
mvs_94xx_iounmap,
mvs_94xx_isr,
mvs_94xx_isr_status,
mvs_94xx_interrupt_enable,
mvs_94xx_interrupt_disable,
mvs_read_phy_ctl,
mvs_write_phy_ctl,
mvs_read_port_cfg_data,
mvs_write_port_cfg_data,
mvs_write_port_cfg_addr,
mvs_read_port_vsr_data,
mvs_write_port_vsr_data,
mvs_write_port_vsr_addr,
mvs_read_port_irq_stat,
mvs_write_port_irq_stat,
mvs_read_port_irq_mask,
mvs_write_port_irq_mask,
mvs_94xx_command_active,
mvs_94xx_clear_srs_irq,
mvs_94xx_issue_stop,
mvs_start_delivery,
mvs_rx_update,
mvs_int_full,
mvs_94xx_assign_reg_set,
mvs_94xx_free_reg_set,
mvs_get_prd_size,
mvs_get_prd_count,
mvs_94xx_make_prd,
mvs_94xx_detect_porttype,
mvs_94xx_oob_done,
mvs_94xx_fix_phy_info,
NULL,
mvs_94xx_phy_set_link_rate,
mvs_hw_max_link_rate,
mvs_94xx_phy_disable,
mvs_94xx_phy_enable,
mvs_94xx_phy_reset,
NULL,
mvs_94xx_clear_active_cmds,
mvs_94xx_spi_read_data,
mvs_94xx_spi_write_data,
mvs_94xx_spi_buildcmd,
mvs_94xx_spi_issuecmd,
mvs_94xx_spi_waitdataready,
mvs_94xx_fix_dma,
mvs_94xx_tune_interrupt,
mvs_94xx_non_spec_ncq_error,
mvs_94xx_gpio_write,
};
Reference in New Issue View Git Blame Copy Permalink