bna: Brocade 1860 IOC PLL, Reg Defs and ASIC Mode Changes

Add logic to set ASIC specfic interface in IOC, HW interface initialization
APIs, mode based initialization and MSI-X resource allocation for 1860 with
no asic block. Add new h/w specific register definitions and setup registers
used by IOC logic.

Use normal kernel declaration style, c99 initializers and const for mailbox
structures. Remove unneeded parentheses.
Signed-off-by: NGurunatha Karaje <gkaraje@brocade.com>
Signed-off-by: NRasesh Mody <rmody@brocade.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/brocade/bna/bfa_ioc.c

@@ -1981,7 +1981,13 @@ bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev,
 		BUG_ON(1);
 	}
 
-	bfa_nw_ioc_set_ct_hwif(ioc);
+	/**
+	 * Set asic specific interfaces.
+	 */
+	if (ioc->asic_gen == BFI_ASIC_GEN_CT)
+		bfa_nw_ioc_set_ct_hwif(ioc);
+	else
+		bfa_nw_ioc_set_ct2_hwif(ioc);
 
 	bfa_ioc_map_port(ioc);
 	bfa_ioc_reg_init(ioc);

drivers/net/ethernet/brocade/bna/bfa_ioc.h

@@ -72,6 +72,7 @@ struct bfa_ioc_regs {
 	void __iomem *hfn_mbox;
 	void __iomem *lpu_mbox_cmd;
 	void __iomem *lpu_mbox;
+	void __iomem *lpu_read_stat;
 	void __iomem *pss_ctl_reg;
 	void __iomem *pss_err_status_reg;
 	void __iomem *app_pll_fast_ctl_reg;
@@ -287,6 +288,7 @@ void bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc,
 } while (0)
 
 void bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc);
+void bfa_nw_ioc_set_ct2_hwif(struct bfa_ioc *ioc);
 
 void bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa,
 		struct bfa_ioc_cbfn *cbfn);

drivers/net/ethernet/brocade/bna/bfa_ioc_ct.c

@@ -37,7 +37,9 @@
 static bool bfa_ioc_ct_firmware_lock(struct bfa_ioc *ioc);
 static void bfa_ioc_ct_firmware_unlock(struct bfa_ioc *ioc);
 static void bfa_ioc_ct_reg_init(struct bfa_ioc *ioc);
+static void bfa_ioc_ct2_reg_init(struct bfa_ioc *ioc);
 static void bfa_ioc_ct_map_port(struct bfa_ioc *ioc);
+static void bfa_ioc_ct2_map_port(struct bfa_ioc *ioc);
 static void bfa_ioc_ct_isr_mode_set(struct bfa_ioc *ioc, bool msix);
 static void bfa_ioc_ct_notify_fail(struct bfa_ioc *ioc);
 static void bfa_ioc_ct_ownership_reset(struct bfa_ioc *ioc);
@@ -48,6 +50,9 @@ static void bfa_ioc_ct_sync_ack(struct bfa_ioc *ioc);
 static bool bfa_ioc_ct_sync_complete(struct bfa_ioc *ioc);
 static enum bfa_status bfa_ioc_ct_pll_init(void __iomem *rb,
 				enum bfi_asic_mode asic_mode);
+static enum bfa_status bfa_ioc_ct2_pll_init(void __iomem *rb,
+				enum bfi_asic_mode asic_mode);
+static bool bfa_ioc_ct2_lpu_read_stat(struct bfa_ioc *ioc);
 
 static const struct bfa_ioc_hwif nw_hwif_ct = {
 	.ioc_pll_init	     = bfa_ioc_ct_pll_init,
@@ -65,6 +70,23 @@ static const struct bfa_ioc_hwif nw_hwif_ct = {
 	.ioc_sync_complete   = bfa_ioc_ct_sync_complete,
 };
 
+static const struct bfa_ioc_hwif nw_hwif_ct2 = {
+	.ioc_pll_init	     = bfa_ioc_ct2_pll_init,
+	.ioc_firmware_lock   = bfa_ioc_ct_firmware_lock,
+	.ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock,
+	.ioc_reg_init	     = bfa_ioc_ct2_reg_init,
+	.ioc_map_port	     = bfa_ioc_ct2_map_port,
+	.ioc_lpu_read_stat   = bfa_ioc_ct2_lpu_read_stat,
+	.ioc_isr_mode_set    = NULL,
+	.ioc_notify_fail     = bfa_ioc_ct_notify_fail,
+	.ioc_ownership_reset = bfa_ioc_ct_ownership_reset,
+	.ioc_sync_start      = bfa_ioc_ct_sync_start,
+	.ioc_sync_join       = bfa_ioc_ct_sync_join,
+	.ioc_sync_leave	     = bfa_ioc_ct_sync_leave,
+	.ioc_sync_ack	     = bfa_ioc_ct_sync_ack,
+	.ioc_sync_complete   = bfa_ioc_ct_sync_complete,
+};
+
 /**
  * Called from bfa_ioc_attach() to map asic specific calls.
  */
@@ -74,6 +96,12 @@ bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc)
 	ioc->ioc_hwif = &nw_hwif_ct;
 }
 
+void
+bfa_nw_ioc_set_ct2_hwif(struct bfa_ioc *ioc)
+{
+	ioc->ioc_hwif = &nw_hwif_ct2;
+}
+
 /**
  * Return true if firmware of current driver matches the running firmware.
  */
@@ -170,7 +198,11 @@ bfa_ioc_ct_notify_fail(struct bfa_ioc *ioc)
 /**
  * Host to LPU mailbox message addresses
  */
-static struct { u32 hfn_mbox, lpu_mbox, hfn_pgn; } ct_fnreg[] = {
+static const struct {
+	u32 	hfn_mbox;
+	u32 	lpu_mbox;
+	u32 	hfn_pgn;
+} ct_fnreg[] = {
 	{ HOSTFN0_LPU_MBOX0_0, LPU_HOSTFN0_MBOX0_0, HOST_PAGE_NUM_FN0 },
 	{ HOSTFN1_LPU_MBOX0_8, LPU_HOSTFN1_MBOX0_8, HOST_PAGE_NUM_FN1 },
 	{ HOSTFN2_LPU_MBOX0_0, LPU_HOSTFN2_MBOX0_0, HOST_PAGE_NUM_FN2 },
@@ -180,7 +212,10 @@ static struct { u32 hfn_mbox, lpu_mbox, hfn_pgn; } ct_fnreg[] = {
 /**
  * Host <-> LPU mailbox command/status registers - port 0
  */
-static struct { u32 hfn, lpu; } ct_p0reg[] = {
+static const struct {
+	u32	hfn;
+	u32	lpu;
+} ct_p0reg[] = {
 	{ HOSTFN0_LPU0_CMD_STAT, LPU0_HOSTFN0_CMD_STAT },
 	{ HOSTFN1_LPU0_CMD_STAT, LPU0_HOSTFN1_CMD_STAT },
 	{ HOSTFN2_LPU0_CMD_STAT, LPU0_HOSTFN2_CMD_STAT },
@@ -190,13 +225,32 @@ static struct { u32 hfn, lpu; } ct_p0reg[] = {
 /**
  * Host <-> LPU mailbox command/status registers - port 1
  */
-static struct { u32 hfn, lpu; } ct_p1reg[] = {
+static const struct {
+	u32	hfn;
+	u32	lpu;
+} ct_p1reg[] = {
 	{ HOSTFN0_LPU1_CMD_STAT, LPU1_HOSTFN0_CMD_STAT },
 	{ HOSTFN1_LPU1_CMD_STAT, LPU1_HOSTFN1_CMD_STAT },
 	{ HOSTFN2_LPU1_CMD_STAT, LPU1_HOSTFN2_CMD_STAT },
 	{ HOSTFN3_LPU1_CMD_STAT, LPU1_HOSTFN3_CMD_STAT }
 };
 
+static const struct {
+	u32	hfn_mbox;
+	u32	lpu_mbox;
+	u32	hfn_pgn;
+	u32	hfn;
+	u32	lpu;
+	u32	lpu_read;
+} ct2_reg[] = {
+	{ CT2_HOSTFN_LPU0_MBOX0, CT2_LPU0_HOSTFN_MBOX0, CT2_HOSTFN_PAGE_NUM,
+	  CT2_HOSTFN_LPU0_CMD_STAT, CT2_LPU0_HOSTFN_CMD_STAT,
+	  CT2_HOSTFN_LPU0_READ_STAT},
+	{ CT2_HOSTFN_LPU1_MBOX0, CT2_LPU1_HOSTFN_MBOX0, CT2_HOSTFN_PAGE_NUM,
+	  CT2_HOSTFN_LPU1_CMD_STAT, CT2_LPU1_HOSTFN_CMD_STAT,
+	  CT2_HOSTFN_LPU1_READ_STAT},
+};
+
 static void
 bfa_ioc_ct_reg_init(struct bfa_ioc *ioc)
 {
@@ -218,8 +272,8 @@ bfa_ioc_ct_reg_init(struct bfa_ioc *ioc)
 		ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;
 		ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;
 	} else {
-		ioc->ioc_regs.heartbeat = (rb + BFA_IOC1_HBEAT_REG);
-		ioc->ioc_regs.ioc_fwstate = (rb + BFA_IOC1_STATE_REG);
+		ioc->ioc_regs.heartbeat = rb + BFA_IOC1_HBEAT_REG;
+		ioc->ioc_regs.ioc_fwstate = rb + BFA_IOC1_STATE_REG;
 		ioc->ioc_regs.alt_ioc_fwstate = rb + BFA_IOC0_STATE_REG;
 		ioc->ioc_regs.hfn_mbox_cmd = rb + ct_p1reg[pcifn].hfn;
 		ioc->ioc_regs.lpu_mbox_cmd = rb + ct_p1reg[pcifn].lpu;
@@ -230,24 +284,24 @@ bfa_ioc_ct_reg_init(struct bfa_ioc *ioc)
 	/*
 	 * PSS control registers
 	 */
-	ioc->ioc_regs.pss_ctl_reg = (rb + PSS_CTL_REG);
-	ioc->ioc_regs.pss_err_status_reg = (rb + PSS_ERR_STATUS_REG);
-	ioc->ioc_regs.app_pll_fast_ctl_reg = (rb + APP_PLL_LCLK_CTL_REG);
-	ioc->ioc_regs.app_pll_slow_ctl_reg = (rb + APP_PLL_SCLK_CTL_REG);
+	ioc->ioc_regs.pss_ctl_reg = rb + PSS_CTL_REG;
+	ioc->ioc_regs.pss_err_status_reg = rb + PSS_ERR_STATUS_REG;
+	ioc->ioc_regs.app_pll_fast_ctl_reg = rb + APP_PLL_LCLK_CTL_REG;
+	ioc->ioc_regs.app_pll_slow_ctl_reg = rb + APP_PLL_SCLK_CTL_REG;
 
 	/*
 	 * IOC semaphore registers and serialization
 	 */
-	ioc->ioc_regs.ioc_sem_reg = (rb + HOST_SEM0_REG);
-	ioc->ioc_regs.ioc_usage_sem_reg = (rb + HOST_SEM1_REG);
-	ioc->ioc_regs.ioc_init_sem_reg = (rb + HOST_SEM2_REG);
-	ioc->ioc_regs.ioc_usage_reg = (rb + BFA_FW_USE_COUNT);
-	ioc->ioc_regs.ioc_fail_sync = (rb + BFA_IOC_FAIL_SYNC);
+	ioc->ioc_regs.ioc_sem_reg = rb + HOST_SEM0_REG;
+	ioc->ioc_regs.ioc_usage_sem_reg = rb + HOST_SEM1_REG;
+	ioc->ioc_regs.ioc_init_sem_reg = rb + HOST_SEM2_REG;
+	ioc->ioc_regs.ioc_usage_reg = rb + BFA_FW_USE_COUNT;
+	ioc->ioc_regs.ioc_fail_sync = rb + BFA_IOC_FAIL_SYNC;
 
 	/**
 	 * sram memory access
 	 */
-	ioc->ioc_regs.smem_page_start = (rb + PSS_SMEM_PAGE_START);
+	ioc->ioc_regs.smem_page_start = rb + PSS_SMEM_PAGE_START;
 	ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CT;
 
 	/*
@@ -256,6 +310,64 @@ bfa_ioc_ct_reg_init(struct bfa_ioc *ioc)
 	ioc->ioc_regs.err_set = (rb + ERR_SET_REG);
 }
 
+static void
+bfa_ioc_ct2_reg_init(struct bfa_ioc *ioc)
+{
+	void __iomem *rb;
+	int		port = bfa_ioc_portid(ioc);
+
+	rb = bfa_ioc_bar0(ioc);
+
+	ioc->ioc_regs.hfn_mbox = rb + ct2_reg[port].hfn_mbox;
+	ioc->ioc_regs.lpu_mbox = rb + ct2_reg[port].lpu_mbox;
+	ioc->ioc_regs.host_page_num_fn = rb + ct2_reg[port].hfn_pgn;
+	ioc->ioc_regs.hfn_mbox_cmd = rb + ct2_reg[port].hfn;
+	ioc->ioc_regs.lpu_mbox_cmd = rb + ct2_reg[port].lpu;
+	ioc->ioc_regs.lpu_read_stat = rb + ct2_reg[port].lpu_read;
+
+	if (port == 0) {
+		ioc->ioc_regs.heartbeat = rb + CT2_BFA_IOC0_HBEAT_REG;
+		ioc->ioc_regs.ioc_fwstate = rb + CT2_BFA_IOC0_STATE_REG;
+		ioc->ioc_regs.alt_ioc_fwstate = rb + CT2_BFA_IOC1_STATE_REG;
+		ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P0;
+		ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P1;
+	} else {
+		ioc->ioc_regs.heartbeat = rb + CT2_BFA_IOC1_HBEAT_REG;
+		ioc->ioc_regs.ioc_fwstate = rb + CT2_BFA_IOC1_STATE_REG;
+		ioc->ioc_regs.alt_ioc_fwstate = rb + CT2_BFA_IOC0_STATE_REG;
+		ioc->ioc_regs.ll_halt = rb + FW_INIT_HALT_P1;
+		ioc->ioc_regs.alt_ll_halt = rb + FW_INIT_HALT_P0;
+	}
+
+	/*
+	 * PSS control registers
+	 */
+	ioc->ioc_regs.pss_ctl_reg = rb + PSS_CTL_REG;
+	ioc->ioc_regs.pss_err_status_reg = rb + PSS_ERR_STATUS_REG;
+	ioc->ioc_regs.app_pll_fast_ctl_reg = rb + CT2_APP_PLL_LCLK_CTL_REG;
+	ioc->ioc_regs.app_pll_slow_ctl_reg = rb + CT2_APP_PLL_SCLK_CTL_REG;
+
+	/*
+	 * IOC semaphore registers and serialization
+	 */
+	ioc->ioc_regs.ioc_sem_reg = rb + CT2_HOST_SEM0_REG;
+	ioc->ioc_regs.ioc_usage_sem_reg = rb + CT2_HOST_SEM1_REG;
+	ioc->ioc_regs.ioc_init_sem_reg = rb + CT2_HOST_SEM2_REG;
+	ioc->ioc_regs.ioc_usage_reg = rb + CT2_BFA_FW_USE_COUNT;
+	ioc->ioc_regs.ioc_fail_sync = rb + CT2_BFA_IOC_FAIL_SYNC;
+
+	/**
+	 * sram memory access
+	 */
+	ioc->ioc_regs.smem_page_start = rb + PSS_SMEM_PAGE_START;
+	ioc->ioc_regs.smem_pg0 = BFI_IOC_SMEM_PG0_CT;
+
+	/*
+	 * err set reg : for notification of hb failure in fcmode
+	 */
+	ioc->ioc_regs.err_set = rb + ERR_SET_REG;
+}
+
 /**
  * Initialize IOC to port mapping.
  */
@@ -276,6 +388,16 @@ bfa_ioc_ct_map_port(struct bfa_ioc *ioc)
 
 }
 
+static void
+bfa_ioc_ct2_map_port(struct bfa_ioc *ioc)
+{
+	void __iomem *rb = ioc->pcidev.pci_bar_kva;
+	u32	r32;
+
+	r32 = readl(rb + CT2_HOSTFN_PERSONALITY0);
+	ioc->port_id = ((r32 & __FC_LL_PORT_MAP__MK) >> __FC_LL_PORT_MAP__SH);
+}
+
 /**
  * Set interrupt mode for a function: INTX or MSIX
  */
@@ -307,6 +429,50 @@ bfa_ioc_ct_isr_mode_set(struct bfa_ioc *ioc, bool msix)
 	writel(r32, rb + FNC_PERS_REG);
 }
 
+static bool
+bfa_ioc_ct2_lpu_read_stat(struct bfa_ioc *ioc)
+{
+	u32 r32;
+
+	r32 = readl(ioc->ioc_regs.lpu_read_stat);
+	if (r32) {
+		writel(1, ioc->ioc_regs.lpu_read_stat);
+		return true;
+	}
+
+	return false;
+}
+
+/**
+ * MSI-X resource allocation for 1860 with no asic block
+ */
+#define HOSTFN_MSIX_DEFAULT		64
+#define HOSTFN_MSIX_VT_INDEX_MBOX_ERR	0x30138
+#define HOSTFN_MSIX_VT_OFST_NUMVT	0x3013c
+#define __MSIX_VT_NUMVT__MK		0x003ff800
+#define __MSIX_VT_NUMVT__SH		11
+#define __MSIX_VT_NUMVT_(_v)		((_v) << __MSIX_VT_NUMVT__SH)
+#define __MSIX_VT_OFST_			0x000007ff
+void
+bfa_ioc_ct2_poweron(struct bfa_ioc *ioc)
+{
+	void __iomem *rb = ioc->pcidev.pci_bar_kva;
+	u32 r32;
+
+	r32 = readl(rb + HOSTFN_MSIX_VT_OFST_NUMVT);
+	if (r32 & __MSIX_VT_NUMVT__MK) {
+		writel(r32 & __MSIX_VT_OFST_,
+			rb + HOSTFN_MSIX_VT_INDEX_MBOX_ERR);
+		return;
+	}
+
+	writel(__MSIX_VT_NUMVT_(HOSTFN_MSIX_DEFAULT - 1) |
+			HOSTFN_MSIX_DEFAULT * bfa_ioc_pcifn(ioc),
+			rb + HOSTFN_MSIX_VT_OFST_NUMVT);
+	writel(HOSTFN_MSIX_DEFAULT * bfa_ioc_pcifn(ioc),
+			rb + HOSTFN_MSIX_VT_INDEX_MBOX_ERR);
+}
+
 /**
  * Cleanup hw semaphore and usecnt registers
  */
@@ -499,3 +665,207 @@ bfa_ioc_ct_pll_init(void __iomem *rb, enum bfi_asic_mode asic_mode)
 	writel(0, (rb + MBIST_CTL_REG));
 	return BFA_STATUS_OK;
 }
+
+static void
+bfa_ioc_ct2_sclk_init(void __iomem *rb)
+{
+	u32 r32;
+
+	/*
+	 * put s_clk PLL and PLL FSM in reset
+	 */
+	r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+	r32 &= ~(__APP_PLL_SCLK_ENABLE | __APP_PLL_SCLK_LRESETN);
+	r32 |= (__APP_PLL_SCLK_ENARST | __APP_PLL_SCLK_BYPASS |
+		__APP_PLL_SCLK_LOGIC_SOFT_RESET);
+	writel(r32, (rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+	/*
+	 * Ignore mode and program for the max clock (which is FC16)
+	 * Firmware/NFC will do the PLL init appropiately
+	 */
+	r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+	r32 &= ~(__APP_PLL_SCLK_REFCLK_SEL | __APP_PLL_SCLK_CLK_DIV2);
+	writel(r32, (rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+	/*
+	 * while doing PLL init dont clock gate ethernet subsystem
+	 */
+	r32 = readl((rb + CT2_CHIP_MISC_PRG));
+	writel((r32 | __ETH_CLK_ENABLE_PORT0),
+				(rb + CT2_CHIP_MISC_PRG));
+
+	r32 = readl((rb + CT2_PCIE_MISC_REG));
+	writel((r32 | __ETH_CLK_ENABLE_PORT1),
+				(rb + CT2_PCIE_MISC_REG));
+
+	/*
+	 * set sclk value
+	 */
+	r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+	r32 &= (__P_SCLK_PLL_LOCK | __APP_PLL_SCLK_REFCLK_SEL |
+		__APP_PLL_SCLK_CLK_DIV2);
+	writel(r32 | 0x1061731b, (rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+	/*
+	 * poll for s_clk lock or delay 1ms
+	 */
+	udelay(1000);
+
+	/*
+	 * Dont do clock gating for ethernet subsystem, firmware/NFC will
+	 * do this appropriately
+	 */
+}
+
+static void
+bfa_ioc_ct2_lclk_init(void __iomem *rb)
+{
+	u32 r32;
+
+	/*
+	 * put l_clk PLL and PLL FSM in reset
+	 */
+	r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+	r32 &= ~(__APP_PLL_LCLK_ENABLE | __APP_PLL_LCLK_LRESETN);
+	r32 |= (__APP_PLL_LCLK_ENARST | __APP_PLL_LCLK_BYPASS |
+		__APP_PLL_LCLK_LOGIC_SOFT_RESET);
+	writel(r32, (rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+	/*
+	 * set LPU speed (set for FC16 which will work for other modes)
+	 */
+	r32 = readl((rb + CT2_CHIP_MISC_PRG));
+	writel(r32, (rb + CT2_CHIP_MISC_PRG));
+
+	/*
+	 * set LPU half speed (set for FC16 which will work for other modes)
+	 */
+	r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+	writel(r32, (rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+	/*
+	 * set lclk for mode (set for FC16)
+	 */
+	r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+	r32 &= (__P_LCLK_PLL_LOCK | __APP_LPUCLK_HALFSPEED);
+	r32 |= 0x20c1731b;
+	writel(r32, (rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+	/*
+	 * poll for s_clk lock or delay 1ms
+	 */
+	udelay(1000);
+}
+
+static void
+bfa_ioc_ct2_mem_init(void __iomem *rb)
+{
+	u32 r32;
+
+	r32 = readl((rb + PSS_CTL_REG));
+	r32 &= ~__PSS_LMEM_RESET;
+	writel(r32, (rb + PSS_CTL_REG));
+	udelay(1000);
+
+	writel(__EDRAM_BISTR_START, (rb + CT2_MBIST_CTL_REG));
+	udelay(1000);
+	writel(0, (rb + CT2_MBIST_CTL_REG));
+}
+
+static void
+bfa_ioc_ct2_mac_reset(void __iomem *rb)
+{
+	volatile u32 r32;
+
+	bfa_ioc_ct2_sclk_init(rb);
+	bfa_ioc_ct2_lclk_init(rb);
+
+	/*
+	 * release soft reset on s_clk & l_clk
+	 */
+	r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+	writel((r32 & ~__APP_PLL_SCLK_LOGIC_SOFT_RESET),
+			(rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+	/*
+	 * release soft reset on s_clk & l_clk
+	 */
+	r32 = readl((rb + CT2_APP_PLL_LCLK_CTL_REG));
+	writel((r32 & ~__APP_PLL_LCLK_LOGIC_SOFT_RESET),
+			(rb + CT2_APP_PLL_LCLK_CTL_REG));
+
+	/* put port0, port1 MAC & AHB in reset */
+	writel((__CSI_MAC_RESET | __CSI_MAC_AHB_RESET),
+			(rb + CT2_CSI_MAC_CONTROL_REG(0)));
+	writel((__CSI_MAC_RESET | __CSI_MAC_AHB_RESET),
+			(rb + CT2_CSI_MAC_CONTROL_REG(1)));
+}
+
+#define CT2_NFC_MAX_DELAY       1000
+static enum bfa_status
+bfa_ioc_ct2_pll_init(void __iomem *rb, enum bfi_asic_mode asic_mode)
+{
+	volatile u32 wgn, r32;
+	int i;
+
+	/*
+	 * Initialize PLL if not already done by NFC
+	 */
+	wgn = readl(rb + CT2_WGN_STATUS);
+	if (!(wgn & __GLBL_PF_VF_CFG_RDY)) {
+		writel(__HALT_NFC_CONTROLLER, (rb + CT2_NFC_CSR_SET_REG));
+		for (i = 0; i < CT2_NFC_MAX_DELAY; i++) {
+			r32 = readl(rb + CT2_NFC_CSR_SET_REG);
+			if (r32 & __NFC_CONTROLLER_HALTED)
+				break;
+			udelay(1000);
+		}
+	}
+
+	/*
+	 * Mask the interrupts and clear any
+	 * pending interrupts left by BIOS/EFI
+	 */
+
+	writel(1, (rb + CT2_LPU0_HOSTFN_MBOX0_MSK));
+	writel(1, (rb + CT2_LPU1_HOSTFN_MBOX0_MSK));
+
+	r32 = readl((rb + CT2_LPU0_HOSTFN_CMD_STAT));
+	if (r32 == 1) {
+		writel(1, (rb + CT2_LPU0_HOSTFN_CMD_STAT));
+		readl((rb + CT2_LPU0_HOSTFN_CMD_STAT));
+	}
+	r32 = readl((rb + CT2_LPU1_HOSTFN_CMD_STAT));
+	if (r32 == 1) {
+		writel(1, (rb + CT2_LPU1_HOSTFN_CMD_STAT));
+		readl((rb + CT2_LPU1_HOSTFN_CMD_STAT));
+	}
+
+	bfa_ioc_ct2_mac_reset(rb);
+	bfa_ioc_ct2_sclk_init(rb);
+	bfa_ioc_ct2_lclk_init(rb);
+
+	/*
+	 * release soft reset on s_clk & l_clk
+	 */
+	r32 = readl((rb + CT2_APP_PLL_SCLK_CTL_REG));
+	writel((r32 & ~__APP_PLL_LCLK_LOGIC_SOFT_RESET),
+			(rb + CT2_APP_PLL_SCLK_CTL_REG));
+
+	/*
+	 * Announce flash device presence, if flash was corrupted.
+	 */
+	if (wgn == (__WGN_READY | __GLBL_PF_VF_CFG_RDY)) {
+		r32 = readl((rb + PSS_GPIO_OUT_REG));
+		writel((r32 & ~1), (rb + PSS_GPIO_OUT_REG));
+		r32 = readl((rb + PSS_GPIO_OE_REG));
+		writel((r32 | 1), (rb + PSS_GPIO_OE_REG));
+	}
+
+	bfa_ioc_ct2_mem_init(rb);
+
+	writel(BFI_IOC_UNINIT, (rb + CT2_BFA_IOC0_STATE_REG));
+	writel(BFI_IOC_UNINIT, (rb + CT2_BFA_IOC1_STATE_REG));
+	return BFA_STATUS_OK;
+}