[PATCH 12/25] scsi: hisi_sas: add v1 HW initialisation code

John Garry
2015-10-12T15:07:07Z

Add complete code to initialise HW to the point where
we can get a phy up interrupt when a disk is connected.

Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas.h | 10 +
drivers/scsi/hisi_sas/hisi_sas_init.c | 20 ++
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 502 +++++++++++++++++++++++++++++++++
3 files changed, 532 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 1a26f27..18fd30b 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -34,7 +34,12 @@
(((sizeof(union hisi_sas_command_table)+3)/4)*4)

#define HISI_SAS_NAME_LEN 32
+#define HISI_SAS_RESET_REG_CNT 5

+enum {
+ PORT_TYPE_SAS = (1U << 1),
+ PORT_TYPE_SATA = (1U << 0),
+};

enum dev_status {
HISI_SAS_DEV_NORMAL,
@@ -123,6 +128,7 @@ struct hisi_hba {

void __iomem *regs;
void __iomem *ctrl_regs;
+ u32 reset_reg[HISI_SAS_RESET_REG_CNT];

u8 sas_addr[SAS_ADDR_SIZE];

@@ -323,4 +329,8 @@ union hisi_sas_command_table {
void hisi_sas_slot_index_init(struct hisi_hba *hisi_hba);
void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int i);
void hisi_sas_wq_process(struct work_struct *work);
+extern int interrupt_init_v1_hw(struct hisi_hba *hisi_hba);
+extern int interrupt_openall_v1_hw(struct hisi_hba *hisi_hba);
+extern int hw_init_v1_hw(struct hisi_hba *hisi_hba);
+extern int phys_init_v1_hw(struct hisi_hba *hisi_hba);
#endif
diff --git a/drivers/scsi/hisi_sas/hisi_sas_init.c b/drivers/scsi/hisi_sas/hisi_sas_init.c
index 558e0e7..67bfa58 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_init.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_init.c
@@ -270,6 +270,11 @@ static struct hisi_hba *hisi_sas_hba_alloc(

init_timer(&hisi_hba->timer);

+ if (of_property_read_u32_array(np, "reset-reg",
+ (u32 *) &hisi_hba->reset_reg,
+ HISI_SAS_RESET_REG_CNT))
+ goto err_out;
+
if (of_property_read_u32(np, "phy-count", &hisi_hba->n_phy))
goto err_out;

@@ -387,6 +392,21 @@ static int hisi_sas_probe(struct platform_device *pdev)
}

hisi_sas_init_add(hisi_hba);
+
+ rc = hw_init_v1_hw(hisi_hba);
+ if (rc)
+ goto err_out_ha;
+
+ rc = interrupt_init_v1_hw(hisi_hba);
+ if (rc)
+ goto err_out_ha;
+
+ rc = interrupt_openall_v1_hw(hisi_hba);
+ if (rc)
+ goto err_out_ha;
+
+ phys_init_v1_hw(hisi_hba);
+
rc = scsi_add_host(shost, &pdev->dev);
if (rc)
goto err_out_ha;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index ccc7aa7..20291b4 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -400,3 +400,505 @@ enum {
(HISI_SAS_PHY_MAX_INT_NR + HISI_SAS_CQ_MAX_INT_NR +\
HISI_SAS_FATAL_INT_NR)

+static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ return readl(regs);
+}
+
+static void hisi_sas_write32(struct hisi_hba *hisi_hba,
+ u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + off;
+
+ writel(val, regs);
+}
+
+static void hisi_sas_phy_write32(struct hisi_hba *hisi_hba,
+ int phy_no, u32 off, u32 val)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ writel(val, regs);
+}
+
+static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba,
+ int phy_no, u32 off)
+{
+ void __iomem *regs = hisi_hba->regs + (0x400 * phy_no) + off;
+
+ return readl(regs);
+}
+
+static void config_phy_opt_mode_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg &= ~PHY_CFG_DC_OPT_MSK;
+ cfg |= 1 << PHY_CFG_DC_OPT_OFF;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+static void config_tx_tfe_autoneg_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CONFIG2);
+
+ cfg &= ~PHY_CONFIG2_FORCE_TXDEEMPH_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CONFIG2, cfg);
+}
+
+static void config_id_frame_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ struct sas_identify_frame identify_frame;
+ u32 *identify_buffer;
+
+ memset(&identify_frame, 0, sizeof(identify_frame));
+ identify_frame.dev_type = SAS_END_DEVICE;
+ identify_frame.frame_type = 0;
+ identify_frame._un1 = 1;
+ identify_frame.initiator_bits = SAS_PROTOCOL_ALL;
+ identify_frame.target_bits = SAS_PROTOCOL_NONE;
+ memcpy(&identify_frame._un4_11[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ memcpy(&identify_frame.sas_addr[0], hisi_hba->sas_addr, SAS_ADDR_SIZE);
+ identify_frame.phy_id = phy_no;
+ identify_buffer = (u32 *)(&identify_frame);
+
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD0,
+ __swab32(identify_buffer[0]));
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD1,
+ identify_buffer[2]);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD2,
+ identify_buffer[1]);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD3,
+ identify_buffer[4]);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD4,
+ identify_buffer[3]);
+ hisi_sas_phy_write32(hisi_hba, phy_no, TX_ID_DWORD5,
+ __swab32(identify_buffer[5]));
+}
+
+static void init_id_frame_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; i++)
+ config_id_frame_v1_hw(hisi_hba, i);
+}
+
+static int reset_hw_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+ unsigned long end_time;
+ u32 reg_val;
+ struct device *dev = &hisi_hba->pdev->dev;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ u32 phy_ctrl = hisi_sas_phy_read32(hisi_hba, i, PHY_CTRL);
+
+ phy_ctrl |= PHY_CTRL_RESET_MSK;
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL, phy_ctrl);
+ }
+ msleep(1); /* It is safe to wait for 50us */
+
+ /* Ensure DMA tx & rx idle */
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ u32 dma_tx_status, dma_rx_status;
+
+ end_time = jiffies + msecs_to_jiffies(1000);
+
+ while (1) {
+ dma_tx_status = hisi_sas_phy_read32(hisi_hba, i,
+ DMA_TX_STATUS);
+ dma_rx_status = hisi_sas_phy_read32(hisi_hba, i,
+ DMA_RX_STATUS);
+
+ if (!(dma_tx_status & DMA_TX_STATUS_BUSY_MSK) &&
+ !(dma_rx_status & DMA_RX_STATUS_BUSY_MSK))
+ break;
+
+ msleep(20);
+ if (time_after(jiffies, end_time))
+ return -EIO;
+ }
+ }
+
+ /* Ensure axi bus idle */
+ end_time = jiffies + msecs_to_jiffies(1000);
+ while (1) {
+ u32 axi_status =
+ hisi_sas_read32(hisi_hba, AXI_CFG);
+
+ if (axi_status == 0)
+ break;
+
+ msleep(20);
+ if (time_after(jiffies, end_time))
+ return -EIO;
+ }
+
+ /* Apply reset */
+ writel(CONTROLLER_RESET_VALUE,
+ hisi_hba->ctrl_regs + hisi_hba->reset_reg[0]);
+ writel(CONTROLLER_RESET_VALUE,
+ hisi_hba->ctrl_regs + hisi_hba->reset_reg[1]);
+ msleep(1);
+ reg_val = readl(hisi_hba->ctrl_regs + hisi_hba->reset_reg[2]);
+ if (CONTROLLER_RESET_VALUE != (reg_val & CONTROLLER_RESET_VALUE)) {
+ dev_err(dev, "Reset failed\n");
+ return -EIO;
+ }
+
+ /* De-reset */
+ writel(CONTROLLER_RESET_VALUE,
+ hisi_hba->ctrl_regs + hisi_hba->reset_reg[3]);
+ writel(CONTROLLER_RESET_VALUE,
+ hisi_hba->ctrl_regs + hisi_hba->reset_reg[4]);
+ msleep(1);
+ reg_val = readl(hisi_hba->ctrl_regs + hisi_hba->reset_reg[2]);
+ if (reg_val & CONTROLLER_RESET_VALUE) {
+ dev_err(dev, "De-reset failed\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void init_reg_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ /* Global registers init*/
+ hisi_sas_write32(hisi_hba,
+ DLVRY_QUEUE_ENABLE,
+ (u32)((1ULL << hisi_hba->queue_count) - 1));
+ hisi_sas_write32(hisi_hba, HGC_TRANS_TASK_CNT_LIMIT, 0x11);
+ hisi_sas_write32(hisi_hba, DEVICE_MSG_WORK_MODE, 0x1);
+ hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x1ff);
+ hisi_sas_write32(hisi_hba, HGC_ERR_STAT_EN, 0x401);
+ hisi_sas_write32(hisi_hba, CFG_1US_TIMER_TRSH, 0x64);
+ hisi_sas_write32(hisi_hba, HGC_GET_ITV_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, I_T_NEXUS_LOSS_TIME, 0x64);
+ hisi_sas_write32(hisi_hba, BUS_INACTIVE_LIMIT_TIME, 0x2710);
+ hisi_sas_write32(hisi_hba, REJECT_TO_OPEN_LIMIT_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x7a12);
+ hisi_sas_write32(hisi_hba, HGC_DFX_CFG2, 0x9c40);
+ hisi_sas_write32(hisi_hba, FIS_LIST_BADDR_L, 0x2);
+ hisi_sas_write32(hisi_hba, INT_COAL_EN, 0xc);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_TIME, 0x186a0);
+ hisi_sas_write32(hisi_hba, OQ_INT_COAL_CNT, 1);
+ hisi_sas_write32(hisi_hba, ENT_INT_COAL_TIME, 0x1);
+ hisi_sas_write32(hisi_hba, ENT_INT_COAL_CNT, 0x1);
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC, 0xffffffff);
+ hisi_sas_write32(hisi_hba, OQ_INT_SRC_MSK, 0);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC1, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC2, 0xffffffff);
+ hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0);
+ hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0);
+ hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 0x2);
+ hisi_sas_write32(hisi_hba, CFG_SAS_CONFIG, 0x22000000);
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, 0x88a);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_CONFIG2, 0x7c080);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_RATE_NEGO, 0x415ee00);
+ hisi_sas_phy_write32(hisi_hba, i, PHY_PCN, 0x80a80000);
+
+ hisi_sas_phy_write32(hisi_hba, i, SL_TOUT_CFG, 0x7d7d7d7d);
+ hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0x0);
+ hisi_sas_phy_write32(hisi_hba, i, RXOP_CHECK_CFG_H, 0x1000);
+ hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 0);
+ hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x13f0a);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT_COAL_EN, 3);
+ hisi_sas_phy_write32(hisi_hba, i, DONE_RECEIVED_TIME, 8);
+ }
+
+ for (i = 0; i < hisi_hba->queue_count; i++) {
+ /* Delivery queue */
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->cmd_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba,
+ DLVRY_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+
+ /* Completion queue */
+ hisi_sas_write32(hisi_hba,
+ COMPL_Q_0_BASE_ADDR_HI + (i * 0x14),
+ upper_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba,
+ COMPL_Q_0_BASE_ADDR_LO + (i * 0x14),
+ lower_32_bits(hisi_hba->complete_hdr_dma[i]));
+
+ hisi_sas_write32(hisi_hba, COMPL_Q_0_DEPTH + (i * 0x14),
+ HISI_SAS_QUEUE_SLOTS);
+ }
+
+ /* itct */
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->itct_dma));
+
+ hisi_sas_write32(hisi_hba, ITCT_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->itct_dma));
+
+ /* iost */
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_LO,
+ lower_32_bits(hisi_hba->iost_dma));
+
+ hisi_sas_write32(hisi_hba, IOST_BASE_ADDR_HI,
+ upper_32_bits(hisi_hba->iost_dma));
+
+ /* breakpoint */
+ hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_LO,
+ lower_32_bits(hisi_hba->breakpoint_dma));
+
+ hisi_sas_write32(hisi_hba, BROKEN_MSG_ADDR_HI,
+ upper_32_bits(hisi_hba->breakpoint_dma));
+}
+
+int hw_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+ struct device *dev = &hisi_hba->pdev->dev;
+ int rc;
+
+ rc = reset_hw_v1_hw(hisi_hba);
+ if (rc) {
+ dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc);
+ return rc;
+ }
+
+ msleep(100);
+ init_reg_v1_hw(hisi_hba);
+
+ init_id_frame_v1_hw(hisi_hba);
+
+ return 0;
+}
+
+void enable_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+ cfg |= PHY_CFG_ENA_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
+
+static void start_phy_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+ config_id_frame_v1_hw(hisi_hba, phy_no);
+ config_phy_opt_mode_v1_hw(hisi_hba, phy_no);
+ config_tx_tfe_autoneg_v1_hw(hisi_hba, phy_no);
+ enable_phy_v1_hw(hisi_hba, phy_no);
+}
+
+static void start_phys_v1_hw(unsigned long data)
+{
+ struct hisi_hba *hisi_hba = (struct hisi_hba *)data;
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x12a);
+ start_phy_v1_hw(hisi_hba, i);
+ }
+}
+
+static void phys_up_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a);
+ hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK);
+ }
+}
+
+static int start_phy_layer_v1_hw(struct hisi_hba *hisi_hba)
+{
+ struct timer_list *timer = &hisi_hba->timer;
+
+ setup_timer(timer, start_phys_v1_hw, (unsigned long)hisi_hba);
+ mod_timer(timer, jiffies + HZ);
+
+ return 0;
+}
+
+int phys_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+ phys_up_v1_hw(hisi_hba);
+ start_phy_layer_v1_hw(hisi_hba);
+
+ return 0;
+}
+
+/* Interrupts */
+static irqreturn_t int_phyup_v1_hw(int irq_no, void *p)
+{
+ struct hisi_sas_phy *phy = p;
+ struct hisi_hba *hisi_hba = phy->hisi_hba;
+ struct device *dev = &hisi_hba->pdev->dev;
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ int phy_no = sas_phy->id;
+ u32 *frame_rcvd = (u32 *)sas_phy->frame_rcvd;
+ struct sas_identify_frame *id = (struct sas_identify_frame *)frame_rcvd;
+ u32 irq_value, context, port_id, link_rate;
+ int i;
+ irqreturn_t res = IRQ_HANDLED;
+
+ irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2);
+
+ if (!(irq_value & CHL_INT2_SL_PHY_ENA_MSK)) {
+ dev_dbg(dev, "phyup: irq_value = %x not set enable bit\n",
+ irq_value);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ context = hisi_sas_read32(hisi_hba, PHY_CONTEXT);
+ if (context & 1 << phy_no) {
+ dev_err(dev, "phyup: phy%d SATA attached equipment\n",
+ phy_no);
+ goto end;
+ }
+
+ port_id = (hisi_sas_read32(hisi_hba, PHY_PORT_NUM_MA) >> (4 * phy_no))
+ & 0xf;
+ if (port_id == 0xf) {
+ dev_err(dev, "phyup: phy%d invalid portid\n", phy_no);
+ res = IRQ_NONE;
+ goto end;
+ }
+
+ for (i = 0; i < 6; i++) {
+ u32 idaf = hisi_sas_phy_read32(hisi_hba, phy_no,
+ RX_IDAF_DWORD0 + (i * 4));
+ frame_rcvd[i] = __swab32(idaf);
+ }
+
+ /* Get the linkrate */
+ link_rate = hisi_sas_read32(hisi_hba, PHY_CONN_RATE);
+ link_rate = (link_rate >> (phy_no * 4)) & 0xf;
+ sas_phy->linkrate = link_rate;
+ sas_phy->oob_mode = SAS_OOB_MODE;
+ memcpy(sas_phy->attached_sas_addr,
+ &id->sas_addr, SAS_ADDR_SIZE);
+ dev_info(dev, "phyup: phy%d id=%d link_rate=%d\n",
+ phy_no, hisi_hba->id, link_rate);
+ phy->port_id = port_id;
+ phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+ phy->phy_type |= PORT_TYPE_SAS;
+ phy->phy_attached = 1;
+ phy->identify.device_type = id->dev_type;
+ phy->frame_rcvd_size = sizeof(struct sas_identify_frame);
+ if (phy->identify.device_type == SAS_END_DEVICE)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SSP;
+ else if (phy->identify.device_type != SAS_PHY_UNUSED)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SMP;
+
+
+end:
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT2,
+ CHL_INT2_SL_PHY_ENA_MSK);
+
+ if (irq_value & CHL_INT2_SL_PHY_ENA_MSK) {
+ u32 chl_int0 = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT0);
+
+ chl_int0 &= ~CHL_INT0_PHYCTRL_NOTRDY_MSK;
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0, chl_int0);
+ hisi_sas_phy_write32(hisi_hba, phy_no, CHL_INT0_MSK, 0x3ce3ee);
+ }
+
+ return res;
+}
+
+
+static const char phy_int_names[HISI_SAS_PHY_INT_NR][32] = {
+ {"Phy Up"},
+};
+
+
+static irq_handler_t phy_interrupts[HISI_SAS_PHY_INT_NR] = {
+ int_phyup_v1_hw,
+};
+
+int interrupt_init_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i, j, irq, rc, id = hisi_hba->id;
+ struct device *dev = &hisi_hba->pdev->dev;
+ struct device_node *np = dev->of_node;
+ char *int_names = hisi_hba->int_names;
+
+ if (!np)
+ return -ENOENT;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ struct hisi_sas_phy *phy = &hisi_hba->phy[i];
+
+ for (j = 0; j < HISI_SAS_PHY_INT_NR; j++) {
+ int idx = (i * HISI_SAS_PHY_INT_NR) + j;
+
+ irq = irq_of_parse_and_map(np, idx);
+ if (!irq) {
+ dev_err(dev, "irq init: [%d] fail map phy interrupt %d\n",
+ hisi_hba->id, idx);
+ return -ENOENT;
+ }
+
+ (void)snprintf(&int_names[idx * HISI_SAS_NAME_LEN],
+ HISI_SAS_NAME_LEN,
+ DRV_NAME" %s [%d %d]", phy_int_names[j],
+ id, i);
+ rc = devm_request_irq(dev, irq, phy_interrupts[j], 0,
+ &int_names[idx * HISI_SAS_NAME_LEN],
+ phy);
+ if (rc) {
+ dev_err(dev, "irq init: [%d] could not request "
+ "phy interrupt %d, rc=%d\n",
+ hisi_hba->id, irq, rc);
+ return -ENOENT;
+ }
+ }
+ }
+
+
+ return 0;
+}
+
+int interrupt_openall_v1_hw(struct hisi_hba *hisi_hba)
+{
+ int i;
+ u32 val;
+
+ for (i = 0; i < hisi_hba->n_phy; i++) {
+ /* Clear interrupt status */
+ val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT0);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT0, val);
+ val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT1);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1, val);
+ val = hisi_sas_phy_read32(hisi_hba, i, CHL_INT2);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2, val);
+
+ /* Unmask interrupt */
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT0_MSK, 0x3ce3ee);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT1_MSK, 0x17fff);
+ hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x8000012a);
+
+ /* bypass chip bug mask abnormal intr */
+ hisi_sas_phy_write32(hisi_hba,
+ i,
+ CHL_INT0_MSK,
+ 0x3fffff &
+ ~CHL_INT0_MSK_PHYCTRL_NOTRDY_MSK);
+ }
+
+ return 0;
+}
--
1.9.1