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authorLinus Torvalds <torvalds@linux-foundation.org>2020-01-29 10:09:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-29 10:09:44 -0800
commitaac96626713fe167c672f9a008be0f514aa3e237 (patch)
tree3bf0db49fcb5124ee3ebf2ebe12e22f228b52409 /drivers/phy/broadcom
parent6ba3d7066c71d2103da255df19eb613d299bab15 (diff)
parenteaa519983fd9e53c2a62a1e56777e1fb461865a9 (diff)
Merge tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt/PHY driver updates from Greg KH: "Here is the big USB and Thunderbolt and PHY driver updates for 5.6-rc1. With the advent of USB4, "Thunderbolt" has really become USB4, so the renaming of the Kconfig option and starting to share subsystem code has begun, hence both subsystems coming in through the same tree here. PHY driver updates also touched USB drivers, so that is coming in through here as well. Major stuff included in here are: - USB 4 initial support added (i.e. Thunderbolt) - musb driver updates - USB gadget driver updates - PHY driver updates - USB PHY driver updates - lots of USB serial stuff fixed up - USB typec updates - USB-IP fixes - lots of other smaller USB driver updates All of these have been in linux-next for a while now (the usb-serial tree is already tested in linux-next on its own before merged into here), with no reported issues" [ Removed an incorrect compile test enablement for PHY_EXYNOS5250_SATA that causes configuration warnings - Linus ] * tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits) Doc: ABI: add usb charger uevent usb: phy: show USB charger type for user usb: cdns3: fix spelling mistake and rework grammar in text usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors USB: serial: cyberjack: fix spelling mistake "To" -> "Too" USB: serial: ir-usb: simplify endpoint check USB: serial: ir-usb: make set_termios synchronous USB: serial: ir-usb: fix IrLAP framing USB: serial: ir-usb: fix link-speed handling USB: serial: ir-usb: add missing endpoint sanity check usb: typec: fusb302: fix "op-sink-microwatt" default that was in mW usb: typec: wcove: fix "op-sink-microwatt" default that was in mW usb: dwc3: pci: add ID for the Intel Comet Lake -V variant usb: typec: tcpci: mask event interrupts when remove driver usb: host: xhci-tegra: set MODULE_FIRMWARE for tegra186 usb: chipidea: add inline for ci_hdrc_host_driver_init if host is not defined usb: chipidea: handle single role for usb role class usb: musb: fix spelling mistake: "periperal" -> "peripheral" phy: ti: j721e-wiz: Fix build error without CONFIG_OF_ADDRESS USB: usbfs: Always unlink URBs in reverse order ...
Diffstat (limited to 'drivers/phy/broadcom')
-rw-r--r--drivers/phy/broadcom/Kconfig4
-rw-r--r--drivers/phy/broadcom/Makefile2
-rw-r--r--drivers/phy/broadcom/phy-brcm-sata.c120
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c414
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init.c226
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init.h148
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb.c269
7 files changed, 1009 insertions, 174 deletions
diff --git a/drivers/phy/broadcom/Kconfig b/drivers/phy/broadcom/Kconfig
index d3d983c128ea..b29f11c19155 100644
--- a/drivers/phy/broadcom/Kconfig
+++ b/drivers/phy/broadcom/Kconfig
@@ -50,7 +50,7 @@ config PHY_BCM_NS_USB3
config PHY_NS2_PCIE
tristate "Broadcom Northstar2 PCIe PHY driver"
- depends on OF && MDIO_BUS_MUX_BCM_IPROC
+ depends on (OF && MDIO_BUS_MUX_BCM_IPROC) || (COMPILE_TEST && MDIO_BUS)
select GENERIC_PHY
default ARCH_BCM_IPROC
help
@@ -83,7 +83,7 @@ config PHY_BRCM_SATA
config PHY_BRCM_USB
tristate "Broadcom STB USB PHY driver"
- depends on ARCH_BRCMSTB
+ depends on ARCH_BRCMSTB || COMPILE_TEST
depends on OF
select GENERIC_PHY
select SOC_BRCMSTB
diff --git a/drivers/phy/broadcom/Makefile b/drivers/phy/broadcom/Makefile
index f453c7d3ffff..c78de546135c 100644
--- a/drivers/phy/broadcom/Makefile
+++ b/drivers/phy/broadcom/Makefile
@@ -8,7 +8,7 @@ obj-$(CONFIG_PHY_NS2_USB_DRD) += phy-bcm-ns2-usbdrd.o
obj-$(CONFIG_PHY_BRCM_SATA) += phy-brcm-sata.o
obj-$(CONFIG_PHY_BRCM_USB) += phy-brcm-usb-dvr.o
-phy-brcm-usb-dvr-objs := phy-brcm-usb.o phy-brcm-usb-init.o
+phy-brcm-usb-dvr-objs := phy-brcm-usb.o phy-brcm-usb-init.o phy-brcm-usb-init-synopsys.o
obj-$(CONFIG_PHY_BCM_SR_PCIE) += phy-bcm-sr-pcie.o
obj-$(CONFIG_PHY_BCM_SR_USB) += phy-bcm-sr-usb.o
diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
index 50ac75bbb0c9..4710cfcc3037 100644
--- a/drivers/phy/broadcom/phy-brcm-sata.c
+++ b/drivers/phy/broadcom/phy-brcm-sata.c
@@ -33,6 +33,7 @@
#define SATA_PHY_CTRL_REG_28NM_SPACE_SIZE 0x8
enum brcm_sata_phy_version {
+ BRCM_SATA_PHY_STB_16NM,
BRCM_SATA_PHY_STB_28NM,
BRCM_SATA_PHY_STB_40NM,
BRCM_SATA_PHY_IPROC_NS2,
@@ -104,10 +105,13 @@ enum sata_phy_regs {
PLL1_ACTRL5 = 0x85,
PLL1_ACTRL6 = 0x86,
PLL1_ACTRL7 = 0x87,
+ PLL1_ACTRL8 = 0x88,
TX_REG_BANK = 0x070,
TX_ACTRL0 = 0x80,
TX_ACTRL0_TXPOL_FLIP = BIT(6),
+ TX_ACTRL5 = 0x85,
+ TX_ACTRL5_SSC_EN = BIT(11),
AEQRX_REG_BANK_0 = 0xd0,
AEQ_CONTROL1 = 0x81,
@@ -116,6 +120,7 @@ enum sata_phy_regs {
AEQ_FRC_EQ = 0x83,
AEQ_FRC_EQ_FORCE = BIT(0),
AEQ_FRC_EQ_FORCE_VAL = BIT(1),
+ AEQ_RFZ_FRC_VAL = BIT(8),
AEQRX_REG_BANK_1 = 0xe0,
AEQRX_SLCAL0_CTRL0 = 0x82,
AEQRX_SLCAL1_CTRL0 = 0x86,
@@ -152,7 +157,28 @@ enum sata_phy_regs {
TXPMD_TX_FREQ_CTRL_CONTROL3_FMAX_MASK = 0x3ff,
RXPMD_REG_BANK = 0x1c0,
+ RXPMD_RX_CDR_CONTROL1 = 0x81,
+ RXPMD_RX_PPM_VAL_MASK = 0x1ff,
+ RXPMD_RXPMD_EN_FRC = BIT(12),
+ RXPMD_RXPMD_EN_FRC_VAL = BIT(13),
+ RXPMD_RX_CDR_CDR_PROP_BW = 0x82,
+ RXPMD_G_CDR_PROP_BW_MASK = 0x7,
+ RXPMD_G1_CDR_PROP_BW_SHIFT = 0,
+ RXPMD_G2_CDR_PROP_BW_SHIFT = 3,
+ RXPMD_G3_CDR_PROB_BW_SHIFT = 6,
+ RXPMD_RX_CDR_CDR_ACQ_INTEG_BW = 0x83,
+ RXPMD_G_CDR_ACQ_INT_BW_MASK = 0x7,
+ RXPMD_G1_CDR_ACQ_INT_BW_SHIFT = 0,
+ RXPMD_G2_CDR_ACQ_INT_BW_SHIFT = 3,
+ RXPMD_G3_CDR_ACQ_INT_BW_SHIFT = 6,
+ RXPMD_RX_CDR_CDR_LOCK_INTEG_BW = 0x84,
+ RXPMD_G_CDR_LOCK_INT_BW_MASK = 0x7,
+ RXPMD_G1_CDR_LOCK_INT_BW_SHIFT = 0,
+ RXPMD_G2_CDR_LOCK_INT_BW_SHIFT = 3,
+ RXPMD_G3_CDR_LOCK_INT_BW_SHIFT = 6,
RXPMD_RX_FREQ_MON_CONTROL1 = 0x87,
+ RXPMD_MON_CORRECT_EN = BIT(8),
+ RXPMD_MON_MARGIN_VAL_MASK = 0xff,
};
enum sata_phy_ctrl_regs {
@@ -166,6 +192,7 @@ static inline void __iomem *brcm_sata_pcb_base(struct brcm_sata_port *port)
u32 size = 0;
switch (priv->version) {
+ case BRCM_SATA_PHY_STB_16NM:
case BRCM_SATA_PHY_STB_28NM:
case BRCM_SATA_PHY_IPROC_NS2:
case BRCM_SATA_PHY_DSL_28NM:
@@ -287,6 +314,94 @@ static int brcm_stb_sata_init(struct brcm_sata_port *port)
return brcm_stb_sata_rxaeq_init(port);
}
+static int brcm_stb_sata_16nm_ssc_init(struct brcm_sata_port *port)
+{
+ void __iomem *base = brcm_sata_pcb_base(port);
+ u32 tmp, value;
+
+ /* Reduce CP tail current to 1/16th of its default value */
+ brcm_sata_phy_wr(base, PLL1_REG_BANK, PLL1_ACTRL6, 0, 0x141);
+
+ /* Turn off CP tail current boost */
+ brcm_sata_phy_wr(base, PLL1_REG_BANK, PLL1_ACTRL8, 0, 0xc006);
+
+ /* Set a specific AEQ equalizer value */
+ tmp = AEQ_FRC_EQ_FORCE_VAL | AEQ_FRC_EQ_FORCE;
+ brcm_sata_phy_wr(base, AEQRX_REG_BANK_0, AEQ_FRC_EQ,
+ ~(tmp | AEQ_RFZ_FRC_VAL |
+ AEQ_FRC_EQ_VAL_MASK << AEQ_FRC_EQ_VAL_SHIFT),
+ tmp | 32 << AEQ_FRC_EQ_VAL_SHIFT);
+
+ /* Set RX PPM val center frequency */
+ if (port->ssc_en)
+ value = 0x52;
+ else
+ value = 0;
+ brcm_sata_phy_wr(base, RXPMD_REG_BANK, RXPMD_RX_CDR_CONTROL1,
+ ~RXPMD_RX_PPM_VAL_MASK, value);
+
+ /* Set proportional loop bandwith Gen1/2/3 */
+ tmp = RXPMD_G_CDR_PROP_BW_MASK << RXPMD_G1_CDR_PROP_BW_SHIFT |
+ RXPMD_G_CDR_PROP_BW_MASK << RXPMD_G2_CDR_PROP_BW_SHIFT |
+ RXPMD_G_CDR_PROP_BW_MASK << RXPMD_G3_CDR_PROB_BW_SHIFT;
+ if (port->ssc_en)
+ value = 2 << RXPMD_G1_CDR_PROP_BW_SHIFT |
+ 2 << RXPMD_G2_CDR_PROP_BW_SHIFT |
+ 2 << RXPMD_G3_CDR_PROB_BW_SHIFT;
+ else
+ value = 1 << RXPMD_G1_CDR_PROP_BW_SHIFT |
+ 1 << RXPMD_G2_CDR_PROP_BW_SHIFT |
+ 1 << RXPMD_G3_CDR_PROB_BW_SHIFT;
+ brcm_sata_phy_wr(base, RXPMD_REG_BANK, RXPMD_RX_CDR_CDR_PROP_BW, ~tmp,
+ value);
+
+ /* Set CDR integral loop acquisition bandwidth for Gen1/2/3 */
+ tmp = RXPMD_G_CDR_ACQ_INT_BW_MASK << RXPMD_G1_CDR_ACQ_INT_BW_SHIFT |
+ RXPMD_G_CDR_ACQ_INT_BW_MASK << RXPMD_G2_CDR_ACQ_INT_BW_SHIFT |
+ RXPMD_G_CDR_ACQ_INT_BW_MASK << RXPMD_G3_CDR_ACQ_INT_BW_SHIFT;
+ if (port->ssc_en)
+ value = 1 << RXPMD_G1_CDR_ACQ_INT_BW_SHIFT |
+ 1 << RXPMD_G2_CDR_ACQ_INT_BW_SHIFT |
+ 1 << RXPMD_G3_CDR_ACQ_INT_BW_SHIFT;
+ else
+ value = 0;
+ brcm_sata_phy_wr(base, RXPMD_REG_BANK, RXPMD_RX_CDR_CDR_ACQ_INTEG_BW,
+ ~tmp, value);
+
+ /* Set CDR integral loop locking bandwidth to 1 for Gen 1/2/3 */
+ tmp = RXPMD_G_CDR_LOCK_INT_BW_MASK << RXPMD_G1_CDR_LOCK_INT_BW_SHIFT |
+ RXPMD_G_CDR_LOCK_INT_BW_MASK << RXPMD_G2_CDR_LOCK_INT_BW_SHIFT |
+ RXPMD_G_CDR_LOCK_INT_BW_MASK << RXPMD_G3_CDR_LOCK_INT_BW_SHIFT;
+ if (port->ssc_en)
+ value = 1 << RXPMD_G1_CDR_LOCK_INT_BW_SHIFT |
+ 1 << RXPMD_G2_CDR_LOCK_INT_BW_SHIFT |
+ 1 << RXPMD_G3_CDR_LOCK_INT_BW_SHIFT;
+ else
+ value = 0;
+ brcm_sata_phy_wr(base, RXPMD_REG_BANK, RXPMD_RX_CDR_CDR_LOCK_INTEG_BW,
+ ~tmp, value);
+
+ /* Set no guard band and clamp CDR */
+ tmp = RXPMD_MON_CORRECT_EN | RXPMD_MON_MARGIN_VAL_MASK;
+ if (port->ssc_en)
+ value = 0x51;
+ else
+ value = 0;
+ brcm_sata_phy_wr(base, RXPMD_REG_BANK, RXPMD_RX_FREQ_MON_CONTROL1,
+ ~tmp, RXPMD_MON_CORRECT_EN | value);
+
+ /* Turn on/off SSC */
+ brcm_sata_phy_wr(base, TX_REG_BANK, TX_ACTRL5, ~TX_ACTRL5_SSC_EN,
+ port->ssc_en ? TX_ACTRL5_SSC_EN : 0);
+
+ return 0;
+}
+
+static int brcm_stb_sata_16nm_init(struct brcm_sata_port *port)
+{
+ return brcm_stb_sata_16nm_ssc_init(port);
+}
+
/* NS2 SATA PLL1 defaults were characterized by H/W group */
#define NS2_PLL1_ACTRL2_MAGIC 0x1df8
#define NS2_PLL1_ACTRL3_MAGIC 0x2b00
@@ -544,6 +659,9 @@ static int brcm_sata_phy_init(struct phy *phy)
struct brcm_sata_port *port = phy_get_drvdata(phy);
switch (port->phy_priv->version) {
+ case BRCM_SATA_PHY_STB_16NM:
+ rc = brcm_stb_sata_16nm_init(port);
+ break;
case BRCM_SATA_PHY_STB_28NM:
case BRCM_SATA_PHY_STB_40NM:
rc = brcm_stb_sata_init(port);
@@ -601,6 +719,8 @@ static const struct phy_ops phy_ops = {
};
static const struct of_device_id brcm_sata_phy_of_match[] = {
+ { .compatible = "brcm,bcm7216-sata-phy",
+ .data = (void *)BRCM_SATA_PHY_STB_16NM },
{ .compatible = "brcm,bcm7445-sata-phy",
.data = (void *)BRCM_SATA_PHY_STB_28NM },
{ .compatible = "brcm,bcm7425-sata-phy",
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
new file mode 100644
index 000000000000..456dc4a100c2
--- /dev/null
+++ b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
@@ -0,0 +1,414 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018, Broadcom */
+
+/*
+ * This module contains USB PHY initialization for power up and S3 resume
+ * for newer Synopsys based USB hardware first used on the bcm7216.
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include <linux/soc/brcmstb/brcmstb.h>
+#include "phy-brcm-usb-init.h"
+
+#define PHY_LOCK_TIMEOUT_MS 200
+
+/* Register definitions for syscon piarbctl registers */
+#define PIARBCTL_CAM 0x00
+#define PIARBCTL_SPLITTER 0x04
+#define PIARBCTL_MISC 0x08
+#define PIARBCTL_MISC_SECURE_MASK 0x80000000
+#define PIARBCTL_MISC_USB_SELECT_MASK 0x40000000
+#define PIARBCTL_MISC_USB_4G_SDRAM_MASK 0x20000000
+#define PIARBCTL_MISC_USB_PRIORITY_MASK 0x000f0000
+#define PIARBCTL_MISC_USB_MEM_PAGE_MASK 0x0000f000
+#define PIARBCTL_MISC_CAM1_MEM_PAGE_MASK 0x00000f00
+#define PIARBCTL_MISC_CAM0_MEM_PAGE_MASK 0x000000f0
+#define PIARBCTL_MISC_SATA_PRIORITY_MASK 0x0000000f
+
+#define PIARBCTL_MISC_USB_ONLY_MASK \
+ (PIARBCTL_MISC_USB_SELECT_MASK | \
+ PIARBCTL_MISC_USB_4G_SDRAM_MASK | \
+ PIARBCTL_MISC_USB_PRIORITY_MASK | \
+ PIARBCTL_MISC_USB_MEM_PAGE_MASK)
+
+/* Register definitions for the USB CTRL block */
+#define USB_CTRL_SETUP 0x00
+#define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000
+#define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000
+#define USB_CTRL_SETUP_tca_drv_sel_MASK 0x01000000
+#define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000
+#define USB_CTRL_SETUP_SOFT_SHUTDOWN_MASK 0x00000200
+#define USB_CTRL_SETUP_IPP_MASK 0x00000020
+#define USB_CTRL_SETUP_IOC_MASK 0x00000010
+#define USB_CTRL_USB_PM 0x04
+#define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000
+#define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000
+#define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000
+#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000
+#define USB_CTRL_USB_PM_STATUS 0x08
+#define USB_CTRL_USB_DEVICE_CTL1 0x10
+#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003
+#define USB_CTRL_TEST_PORT_CTL 0x30
+#define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_MASK 0x000000ff
+#define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_PME_GEN_MASK 0x0000002e
+#define USB_CTRL_TP_DIAG1 0x34
+#define USB_CTLR_TP_DIAG1_wake_MASK 0x00000002
+#define USB_CTRL_CTLR_CSHCR 0x50
+#define USB_CTRL_CTLR_CSHCR_ctl_pme_en_MASK 0x00040000
+
+/* Register definitions for the USB_PHY block in 7211b0 */
+#define USB_PHY_PLL_CTL 0x00
+#define USB_PHY_PLL_CTL_PLL_RESETB_MASK 0x40000000
+#define USB_PHY_PLL_LDO_CTL 0x08
+#define USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK 0x00000004
+#define USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK 0x00000002
+#define USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK 0x00000001
+#define USB_PHY_UTMI_CTL_1 0x04
+#define USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800
+#define USB_PHY_UTMI_CTL_1_PHY_MODE_MASK 0x0000000c
+#define USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT 2
+#define USB_PHY_IDDQ 0x1c
+#define USB_PHY_IDDQ_phy_iddq_MASK 0x00000001
+#define USB_PHY_STATUS 0x20
+#define USB_PHY_STATUS_pll_lock_MASK 0x00000001
+
+/* Register definitions for the MDIO registers in the DWC2 block of
+ * the 7211b0.
+ * NOTE: The PHY's MDIO registers are only accessible through the
+ * legacy DesignWare USB controller even though it's not being used.
+ */
+#define USB_GMDIOCSR 0
+#define USB_GMDIOGEN 4
+
+/* Register definitions for the BDC EC block in 7211b0 */
+#define BDC_EC_AXIRDA 0x0c
+#define BDC_EC_AXIRDA_RTS_MASK 0xf0000000
+#define BDC_EC_AXIRDA_RTS_SHIFT 28
+
+
+static void usb_mdio_write_7211b0(struct brcm_usb_init_params *params,
+ uint8_t addr, uint16_t data)
+{
+ void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO];
+
+ addr &= 0x1f; /* 5-bit address */
+ brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN);
+ while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+ ;
+ brcm_usb_writel(0x59020000 | (addr << 18) | data,
+ usb_mdio + USB_GMDIOGEN);
+ while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+ ;
+ brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN);
+ while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+ ;
+}
+
+static uint16_t __maybe_unused usb_mdio_read_7211b0(
+ struct brcm_usb_init_params *params, uint8_t addr)
+{
+ void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO];
+
+ addr &= 0x1f; /* 5-bit address */
+ brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN);
+ while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+ ;
+ brcm_usb_writel(0x69020000 | (addr << 18), usb_mdio + USB_GMDIOGEN);
+ while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+ ;
+ brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN);
+ while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31))
+ ;
+ return brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & 0xffff;
+}
+
+static void usb2_eye_fix_7211b0(struct brcm_usb_init_params *params)
+{
+ /* select bank */
+ usb_mdio_write_7211b0(params, 0x1f, 0x80a0);
+
+ /* Set the eye */
+ usb_mdio_write_7211b0(params, 0x0a, 0xc6a0);
+}
+
+static void xhci_soft_reset(struct brcm_usb_init_params *params,
+ int on_off)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+ /* Assert reset */
+ if (on_off)
+ USB_CTRL_UNSET(ctrl, USB_PM, XHC_SOFT_RESETB);
+ /* De-assert reset */
+ else
+ USB_CTRL_SET(ctrl, USB_PM, XHC_SOFT_RESETB);
+}
+
+static void usb_init_ipp(struct brcm_usb_init_params *params)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+ u32 reg;
+ u32 orig_reg;
+
+ pr_debug("%s\n", __func__);
+
+ orig_reg = reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
+ if (params->ipp != 2)
+ /* override ipp strap pin (if it exits) */
+ reg &= ~(USB_CTRL_MASK(SETUP, STRAP_IPP_SEL));
+
+ /* Override the default OC and PP polarity */
+ reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
+ if (params->ioc)
+ reg |= USB_CTRL_MASK(SETUP, IOC);
+ if (params->ipp == 1)
+ reg |= USB_CTRL_MASK(SETUP, IPP);
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+
+ /*
+ * If we're changing IPP, make sure power is off long enough
+ * to turn off any connected devices.
+ */
+ if ((reg ^ orig_reg) & USB_CTRL_MASK(SETUP, IPP))
+ msleep(50);
+}
+
+static void syscon_piarbctl_init(struct regmap *rmap)
+{
+ /* Switch from legacy USB OTG controller to new STB USB controller */
+ regmap_update_bits(rmap, PIARBCTL_MISC, PIARBCTL_MISC_USB_ONLY_MASK,
+ PIARBCTL_MISC_USB_SELECT_MASK |
+ PIARBCTL_MISC_USB_4G_SDRAM_MASK);
+}
+
+static void usb_init_common(struct brcm_usb_init_params *params)
+{
+ u32 reg;
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+ pr_debug("%s\n", __func__);
+
+ USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN);
+ /* 1 millisecond - for USB clocks to settle down */
+ usleep_range(1000, 2000);
+
+ if (USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE)) {
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
+ reg |= params->mode;
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ }
+ switch (params->mode) {
+ case USB_CTLR_MODE_HOST:
+ USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB);
+ break;
+ default:
+ USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB);
+ USB_CTRL_SET(ctrl, USB_PM, BDC_SOFT_RESETB);
+ break;
+ }
+}
+
+static void usb_wake_enable_7211b0(struct brcm_usb_init_params *params,
+ bool enable)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+ if (enable)
+ USB_CTRL_SET(ctrl, CTLR_CSHCR, ctl_pme_en);
+ else
+ USB_CTRL_UNSET(ctrl, CTLR_CSHCR, ctl_pme_en);
+}
+
+static void usb_init_common_7211b0(struct brcm_usb_init_params *params)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+ void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY];
+ void __iomem *bdc_ec = params->regs[BRCM_REGS_BDC_EC];
+ int timeout_ms = PHY_LOCK_TIMEOUT_MS;
+ u32 reg;
+
+ if (params->syscon_piarbctl)
+ syscon_piarbctl_init(params->syscon_piarbctl);
+
+ USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN);
+
+ usb_wake_enable_7211b0(params, false);
+ if (!params->wake_enabled) {
+
+ /* undo possible suspend settings */
+ brcm_usb_writel(0, usb_phy + USB_PHY_IDDQ);
+ reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);
+ reg |= USB_PHY_PLL_CTL_PLL_RESETB_MASK;
+ brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);
+
+ /* temporarily enable FSM so PHY comes up properly */
+ reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
+ reg |= USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK;
+ brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
+ }
+
+ /* Init the PHY */
+ reg = USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK |
+ USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK |
+ USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK;
+ brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_LDO_CTL);
+
+ /* wait for lock */
+ while (timeout_ms-- > 0) {
+ reg = brcm_usb_readl(usb_phy + USB_PHY_STATUS);
+ if (reg & USB_PHY_STATUS_pll_lock_MASK)
+ break;
+ usleep_range(1000, 2000);
+ }
+
+ /* Set the PHY_MODE */
+ reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
+ reg &= ~USB_PHY_UTMI_CTL_1_PHY_MODE_MASK;
+ reg |= params->mode << USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT;
+ brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
+
+ /* Fix the incorrect default */
+ reg = brcm_usb_readl(ctrl + USB_CTRL_SETUP);
+ reg &= ~USB_CTRL_SETUP_tca_drv_sel_MASK;
+ brcm_usb_writel(reg, ctrl + USB_CTRL_SETUP);
+
+ usb_init_common(params);
+
+ /*
+ * The BDC controller will get occasional failures with
+ * the default "Read Transaction Size" of 6 (1024 bytes).
+ * Set it to 4 (256 bytes).
+ */
+ if ((params->mode != USB_CTLR_MODE_HOST) && bdc_ec) {
+ reg = brcm_usb_readl(bdc_ec + BDC_EC_AXIRDA);
+ reg &= ~BDC_EC_AXIRDA_RTS_MASK;
+ reg |= (0x4 << BDC_EC_AXIRDA_RTS_SHIFT);
+ brcm_usb_writel(reg, bdc_ec + BDC_EC_AXIRDA);
+ }
+
+ /*
+ * Disable FSM, otherwise the PHY will auto suspend when no
+ * device is connected and will be reset on resume.
+ */
+ reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1);
+ reg &= ~USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK;
+ brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);
+
+ usb2_eye_fix_7211b0(params);
+}
+
+static void usb_init_xhci(struct brcm_usb_init_params *params)
+{
+ pr_debug("%s\n", __func__);
+
+ xhci_soft_reset(params, 0);
+}
+
+static void usb_uninit_common(struct brcm_usb_init_params *params)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+ pr_debug("%s\n", __func__);
+
+ USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
+
+}
+
+static void usb_uninit_common_7211b0(struct brcm_usb_init_params *params)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+ void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY];
+ u32 reg;
+
+ pr_debug("%s\n", __func__);
+
+ if (params->wake_enabled) {
+ USB_CTRL_SET(ctrl, TEST_PORT_CTL, TPOUT_SEL_PME_GEN);
+ usb_wake_enable_7211b0(params, true);
+ } else {
+ USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
+ brcm_usb_writel(0, usb_phy + USB_PHY_PLL_LDO_CTL);
+ reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);
+ reg &= ~USB_PHY_PLL_CTL_PLL_RESETB_MASK;
+ brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);
+ brcm_usb_writel(USB_PHY_IDDQ_phy_iddq_MASK,
+ usb_phy + USB_PHY_IDDQ);
+ }
+
+}
+
+static void usb_uninit_xhci(struct brcm_usb_init_params *params)
+{
+
+ pr_debug("%s\n", __func__);
+
+ if (!params->wake_enabled)
+ xhci_soft_reset(params, 1);
+}
+
+static int usb_get_dual_select(struct brcm_usb_init_params *params)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+ u32 reg = 0;
+
+ pr_debug("%s\n", __func__);
+
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ reg &= USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
+ return reg;
+}
+
+static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+ u32 reg;
+
+ pr_debug("%s\n", __func__);
+
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE);
+ reg |= mode;
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+}
+
+static const struct brcm_usb_init_ops bcm7216_ops = {
+ .init_ipp = usb_init_ipp,
+ .init_common = usb_init_common,
+ .init_xhci = usb_init_xhci,
+ .uninit_common = usb_uninit_common,
+ .uninit_xhci = usb_uninit_xhci,
+ .get_dual_select = usb_get_dual_select,
+ .set_dual_select = usb_set_dual_select,
+};
+
+static const struct brcm_usb_init_ops bcm7211b0_ops = {
+ .init_ipp = usb_init_ipp,
+ .init_common = usb_init_common_7211b0,
+ .init_xhci = usb_init_xhci,
+ .uninit_common = usb_uninit_common_7211b0,
+ .uninit_xhci = usb_uninit_xhci,
+ .get_dual_select = usb_get_dual_select,
+ .set_dual_select = usb_set_dual_select,
+};
+
+void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params)
+{
+
+ pr_debug("%s\n", __func__);
+
+ params->family_name = "7216";
+ params->ops = &bcm7216_ops;
+}
+
+void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params)
+{
+
+ pr_debug("%s\n", __func__);
+
+ params->family_name = "7211";
+ params->ops = &bcm7211b0_ops;
+ params->suspend_with_clocks = true;
+}
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.c b/drivers/phy/broadcom/phy-brcm-usb-init.c
index 91b5b09589d6..9391ab42a12b 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init.c
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.c
@@ -42,6 +42,7 @@
#define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK 0x80000000 /* option */
#define USB_CTRL_EBRIDGE 0x0c
#define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK 0x00020000 /* option */
+#define USB_CTRL_EBRIDGE_EBR_SCB_SIZE_MASK 0x00000f80 /* option */
#define USB_CTRL_OBRIDGE 0x10
#define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK 0x08000000
#define USB_CTRL_MDIO 0x14
@@ -57,6 +58,8 @@
#define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 /* option */
#define USB_CTRL_USB_PM_USB20_HC_RESETB_MASK 0x30000000 /* option */
#define USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK 0x00300000 /* option */
+#define USB_CTRL_USB_PM_RMTWKUP_EN_MASK 0x00000001
+#define USB_CTRL_USB_PM_STATUS 0x38
#define USB_CTRL_USB30_CTL1 0x60
#define USB_CTRL_USB30_CTL1_PHY3_PLL_SEQ_START_MASK 0x00000010
#define USB_CTRL_USB30_CTL1_PHY3_RESETB_MASK 0x00010000
@@ -126,10 +129,6 @@ enum {
USB_CTRL_SELECTOR_COUNT,
};
-#define USB_CTRL_REG(base, reg) ((void __iomem *)base + USB_CTRL_##reg)
-#define USB_XHCI_EC_REG(base, reg) ((void __iomem *)base + USB_XHCI_EC_##reg)
-#define USB_CTRL_MASK(reg, field) \
- USB_CTRL_##reg##_##field##_MASK
#define USB_CTRL_MASK_FAMILY(params, reg, field) \
(params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR])
@@ -140,13 +139,6 @@ enum {
usb_ctrl_unset_family(params, USB_CTRL_##reg, \
USB_CTRL_##reg##_##field##_SELECTOR)
-#define USB_CTRL_SET(base, reg, field) \
- usb_ctrl_set(USB_CTRL_REG(base, reg), \
- USB_CTRL_##reg##_##field##_MASK)
-#define USB_CTRL_UNSET(base, reg, field) \
- usb_ctrl_unset(USB_CTRL_REG(base, reg), \
- USB_CTRL_##reg##_##field##_MASK)
-
#define MDIO_USB2 0
#define MDIO_USB3 BIT(31)
@@ -176,6 +168,7 @@ static const struct id_to_type id_to_type_table[] = {
{ 0x33900000, BRCM_FAMILY_3390A0 },
{ 0x72500010, BRCM_FAMILY_7250B0 },
{ 0x72600000, BRCM_FAMILY_7260A0 },
+ { 0x72550000, BRCM_FAMILY_7260A0 },
{ 0x72680000, BRCM_FAMILY_7271A0 },
{ 0x72710000, BRCM_FAMILY_7271A0 },
{ 0x73640000, BRCM_FAMILY_7364A0 },
@@ -401,26 +394,14 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
},
};
-static inline u32 brcmusb_readl(void __iomem *addr)
-{
- return readl(addr);
-}
-
-static inline void brcmusb_writel(u32 val, void __iomem *addr)
-{
- writel(val, addr);
-}
-
static inline
void usb_ctrl_unset_family(struct brcm_usb_init_params *params,
u32 reg_offset, u32 field)
{
u32 mask;
- void __iomem *reg;
mask = params->usb_reg_bits_map[field];
- reg = params->ctrl_regs + reg_offset;
- brcmusb_writel(brcmusb_readl(reg) & ~mask, reg);
+ brcm_usb_ctrl_unset(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
};
static inline
@@ -428,45 +409,27 @@ void usb_ctrl_set_family(struct brcm_usb_init_params *params,
u32 reg_offset, u32 field)
{
u32 mask;
- void __iomem *reg;
mask = params->usb_reg_bits_map[field];
- reg = params->ctrl_regs + reg_offset;
- brcmusb_writel(brcmusb_readl(reg) | mask, reg);
+ brcm_usb_ctrl_set(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
};
-static inline void usb_ctrl_set(void __iomem *reg, u32 field)
-{
- u32 value;
-
- value = brcmusb_readl(reg);
- brcmusb_writel(value | field, reg);
-}
-
-static inline void usb_ctrl_unset(void __iomem *reg, u32 field)
-{
- u32 value;
-
- value = brcmusb_readl(reg);
- brcmusb_writel(value & ~field, reg);
-}
-
static u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode)
{
u32 data;
data = (reg << 16) | mode;
- brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+ brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data |= (1 << 24);
- brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+ brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data &= ~(1 << 24);
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
- brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+ brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
- return brcmusb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff;
+ return brcm_usb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff;
}
static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg,
@@ -475,14 +438,14 @@ static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg,
u32 data;
data = (reg << 16) | val | mode;
- brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+ brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data |= (1 << 25);
- brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+ brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
data &= ~(1 << 25);
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
- brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+ brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
/* wait for the 60MHz parallel to serial shifter */
usleep_range(10, 20);
}
@@ -581,7 +544,7 @@ static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params)
{
u32 ofs;
int ii;
- void __iomem *ctrl_base = params->ctrl_regs;
+ void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
/*
* On newer B53 based SoC's, the reference clock for the
@@ -662,7 +625,7 @@ static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base)
static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params)
{
- void __iomem *ctrl_base = params->ctrl_regs;
+ void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
brcmusb_usb3_pll_fix(ctrl_base);
brcmusb_usb3_pll_54mhz(params);
@@ -704,21 +667,21 @@ static void brcmusb_memc_fix(struct brcm_usb_init_params *params)
static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params)
{
- void __iomem *xhci_ec_base = params->xhci_ec_regs;
+ void __iomem *xhci_ec_base = params->regs[BRCM_REGS_XHCI_EC];
u32 val;
if (params->family_id != 0x74371000 || !xhci_ec_base)
return;
- brcmusb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR));
- val = brcmusb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
+ brcm_usb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR));
+ val = brcm_usb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
/* set cfg_pick_ss_lock */
val |= (1 << 27);
- brcmusb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
+ brcm_usb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
/* Reset USB 3.0 PHY for workaround to take effect */
- USB_CTRL_UNSET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB);
- USB_CTRL_SET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB);
+ USB_CTRL_UNSET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
+ USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
}
static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params,
@@ -747,7 +710,7 @@ static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params,
* - default chip/rev.
* NOTE: The minor rev is always ignored.
*/
-static enum brcm_family_type brcmusb_get_family_type(
+static enum brcm_family_type get_family_type(
struct brcm_usb_init_params *params)
{
int last_type = -1;
@@ -775,9 +738,9 @@ static enum brcm_family_type brcmusb_get_family_type(
return last_type;
}
-void brcm_usb_init_ipp(struct brcm_usb_init_params *params)
+static void usb_init_ipp(struct brcm_usb_init_params *params)
{
- void __iomem *ctrl = params->ctrl_regs;
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
u32 reg;
u32 orig_reg;
@@ -791,7 +754,7 @@ void brcm_usb_init_ipp(struct brcm_usb_init_params *params)
USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP);
}
- reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
orig_reg = reg;
if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL))
/* Never use the strap, it's going away. */
@@ -799,8 +762,8 @@ void brcm_usb_init_ipp(struct brcm_usb_init_params *params)
SETUP,
STRAP_CC_DRD_MODE_ENABLE_SEL));
if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL))
+ /* override ipp strap pin (if it exits) */
if (params->ipp != 2)
- /* override ipp strap pin (if it exits) */
reg &= ~(USB_CTRL_MASK_FAMILY(params, SETUP,
STRAP_IPP_SEL));
@@ -808,50 +771,38 @@ void brcm_usb_init_ipp(struct brcm_usb_init_params *params)
reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
if (params->ioc)
reg |= USB_CTRL_MASK(SETUP, IOC);
- if (params->ipp == 1 && ((reg & USB_CTRL_MASK(SETUP, IPP)) == 0))
+ if (params->ipp == 1)
reg |= USB_CTRL_MASK(SETUP, IPP);
- brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
/*
* If we're changing IPP, make sure power is off long enough
* to turn off any connected devices.
*/
- if (reg != orig_reg)
+ if ((reg ^ orig_reg) & USB_CTRL_MASK(SETUP, IPP))
msleep(50);
}
-int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params)
+static void usb_wake_enable(struct brcm_usb_init_params *params,
+ bool enable)
{
- void __iomem *ctrl = params->ctrl_regs;
- u32 reg = 0;
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
- if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
- reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
- reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
- PORT_MODE);
- }
- return reg;
+ if (enable)
+ USB_CTRL_SET(ctrl, USB_PM, RMTWKUP_EN);
+ else
+ USB_CTRL_UNSET(ctrl, USB_PM, RMTWKUP_EN);
}
-void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params,
- int mode)
+static void usb_init_common(struct brcm_usb_init_params *params)
{
- void __iomem *ctrl = params->ctrl_regs;
u32 reg;
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
- if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
- reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
- reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
- PORT_MODE);
- reg |= mode;
- brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
- }
-}
-
-void brcm_usb_init_common(struct brcm_usb_init_params *params)
-{
- u32 reg;
- void __iomem *ctrl = params->ctrl_regs;
+ /* Clear any pending wake conditions */
+ usb_wake_enable(params, false);
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM_STATUS));
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM_STATUS));
/* Take USB out of power down */
if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) {
@@ -877,7 +828,7 @@ void brcm_usb_init_common(struct brcm_usb_init_params *params)
/* Block auto PLL suspend by USB2 PHY (Sasi) */
USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN);
- reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
if (params->selected_family == BRCM_FAMILY_7364A0)
/* Suppress overcurrent indication from USB30 ports for A0 */
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE);
@@ -893,16 +844,16 @@ void brcm_usb_init_common(struct brcm_usb_init_params *params)
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN);
if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN))
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN);
- brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
brcmusb_memc_fix(params);
if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
- reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
PORT_MODE);
reg |= params->mode;
- brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
}
if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) {
switch (params->mode) {
@@ -924,10 +875,10 @@ void brcm_usb_init_common(struct brcm_usb_init_params *params)
}
}
-void brcm_usb_init_eohci(struct brcm_usb_init_params *params)
+static void usb_init_eohci(struct brcm_usb_init_params *params)
{
u32 reg;
- void __iomem *ctrl = params->ctrl_regs;
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB);
@@ -940,19 +891,30 @@ void brcm_usb_init_eohci(struct brcm_usb_init_params *params)
USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ);
/* Setup the endian bits */
- reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
reg &= ~USB_CTRL_SETUP_ENDIAN_BITS;
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN);
- brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
if (params->selected_family == BRCM_FAMILY_7271A0)
/* Enable LS keep alive fix for certain keyboards */
USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE);
+
+ if (params->family_id == 0x72550000) {
+ /*
+ * Make the burst size 512 bytes to fix a hardware bug
+ * on the 7255a0. See HW7255-24.
+ */
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, EBRIDGE));
+ reg &= ~USB_CTRL_MASK(EBRIDGE, EBR_SCB_SIZE);
+ reg |= 0x800;
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, EBRIDGE));
+ }
}
-void brcm_usb_init_xhci(struct brcm_usb_init_params *params)
+static void usb_init_xhci(struct brcm_usb_init_params *params)
{
- void __iomem *ctrl = params->ctrl_regs;
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
/* 1 millisecond - for USB clocks to settle down */
@@ -978,34 +940,80 @@ void brcm_usb_init_xhci(struct brcm_usb_init_params *params)
brcmusb_usb3_otp_fix(params);
}
-void brcm_usb_uninit_common(struct brcm_usb_init_params *params)
+static void usb_uninit_common(struct brcm_usb_init_params *params)
{
if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN))
USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN);
if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN))
USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
+ if (params->wake_enabled)
+ usb_wake_enable(params, true);
}
-void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params)
+static void usb_uninit_eohci(struct brcm_usb_init_params *params)
{
- if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
- USB_CTRL_UNSET_FAMILY(params, USB_PM, USB20_HC_RESETB);
}
-void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params)
+static void usb_uninit_xhci(struct brcm_usb_init_params *params)
{
brcmusb_xhci_soft_reset(params, 1);
- USB_CTRL_SET(params->ctrl_regs, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
+ USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_PCTL,
+ PHY3_IDDQ_OVERRIDE);
+}
+
+static int usb_get_dual_select(struct brcm_usb_init_params *params)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+ u32 reg = 0;
+
+ pr_debug("%s\n", __func__);
+ if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
+ PORT_MODE);
+ }
+ return reg;
}
-void brcm_usb_set_family_map(struct brcm_usb_init_params *params)
+static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+ u32 reg;
+
+ pr_debug("%s\n", __func__);
+
+ if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
+ reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
+ PORT_MODE);
+ reg |= mode;
+ brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+ }
+}
+
+static const struct brcm_usb_init_ops bcm7445_ops = {
+ .init_ipp = usb_init_ipp,
+ .init_common = usb_init_common,
+ .init_eohci = usb_init_eohci,
+ .init_xhci = usb_init_xhci,
+ .uninit_common = usb_uninit_common,
+ .uninit_eohci = usb_uninit_eohci,
+ .uninit_xhci = usb_uninit_xhci,
+ .get_dual_select = usb_get_dual_select,
+ .set_dual_select = usb_set_dual_select,
+};
+
+void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params)
{
int fam;
- fam = brcmusb_get_family_type(params);
+ pr_debug("%s\n", __func__);
+
+ fam = get_family_type(params);
params->selected_family = fam;
params->usb_reg_bits_map =
&usb_reg_bits_map_table[fam][0];
params->family_name = family_names[fam];
+ params->ops = &bcm7445_ops;
}
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.h b/drivers/phy/broadcom/phy-brcm-usb-init.h
index f4f4f6d5d258..899b9eb43fad 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init.h
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.h
@@ -6,16 +6,50 @@
#ifndef _USB_BRCM_COMMON_INIT_H
#define _USB_BRCM_COMMON_INIT_H
+#include <linux/regmap.h>
+
#define USB_CTLR_MODE_HOST 0
#define USB_CTLR_MODE_DEVICE 1
#define USB_CTLR_MODE_DRD 2
#define USB_CTLR_MODE_TYPEC_PD 3
+enum brcmusb_reg_sel {
+ BRCM_REGS_CTRL = 0,
+ BRCM_REGS_XHCI_EC,
+ BRCM_REGS_XHCI_GBL,
+ BRCM_REGS_USB_PHY,
+ BRCM_REGS_USB_MDIO,
+ BRCM_REGS_BDC_EC,
+ BRCM_REGS_MAX
+};
+
+#define USB_CTRL_REG(base, reg) ((void __iomem *)base + USB_CTRL_##reg)
+#define USB_XHCI_EC_REG(base, reg) ((void __iomem *)base + USB_XHCI_EC_##reg)
+#define USB_CTRL_MASK(reg, field) \
+ USB_CTRL_##reg##_##field##_MASK
+#define USB_CTRL_SET(base, reg, field) \
+ brcm_usb_ctrl_set(USB_CTRL_REG(base, reg), \
+ USB_CTRL_##reg##_##field##_MASK)
+#define USB_CTRL_UNSET(base, reg, field) \
+ brcm_usb_ctrl_unset(USB_CTRL_REG(base, reg), \
+ USB_CTRL_##reg##_##field##_MASK)
+
struct brcm_usb_init_params;
+struct brcm_usb_init_ops {
+ void (*init_ipp)(struct brcm_usb_init_params *params);
+ void (*init_common)(struct brcm_usb_init_params *params);
+ void (*init_eohci)(struct brcm_usb_init_params *params);
+ void (*init_xhci)(struct brcm_usb_init_params *params);
+ void (*uninit_common)(struct brcm_usb_init_params *params);
+ void (*uninit_eohci)(struct brcm_usb_init_params *params);
+ void (*uninit_xhci)(struct brcm_usb_init_params *params);
+ int (*get_dual_select)(struct brcm_usb_init_params *params);
+ void (*set_dual_select)(struct brcm_usb_init_params *params, int mode);
+};
+
struct brcm_usb_init_params {
- void __iomem *ctrl_regs;
- void __iomem *xhci_ec_regs;
+ void __iomem *regs[BRCM_REGS_MAX];
int ioc;
int ipp;
int mode;
@@ -24,19 +58,105 @@ struct brcm_usb_init_params {
int selected_family;
const char *family_name;
const u32 *usb_reg_bits_map;
+ const struct brcm_usb_init_ops *ops;
+ struct regmap *syscon_piarbctl;
+ bool wake_enabled;
+ bool suspend_with_clocks;
+};
+
+void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params);
+void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params);
+void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params);
+
+static inline u32 brcm_usb_readl(void __iomem *addr)
+{
+ /*
+ * MIPS endianness is configured by boot strap, which also reverses all
+ * bus endianness (i.e., big-endian CPU + big endian bus ==> native
+ * endian I/O).
+ *
+ * Other architectures (e.g., ARM) either do not support big endian, or
+ * else leave I/O in little endian mode.
+ */
+ if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
+ return __raw_readl(addr);
+ else
+ return readl_relaxed(addr);
+}
+
+static inline void brcm_usb_writel(u32 val, void __iomem *addr)
+{
+ /* See brcmnand_readl() comments */
+ if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(__BIG_ENDIAN))
+ __raw_writel(val, addr);
+ else
+ writel_relaxed(val, addr);
+}
+
+static inline void brcm_usb_ctrl_unset(void __iomem *reg, u32 mask)
+{
+ brcm_usb_writel(brcm_usb_readl(reg) & ~(mask), reg);
};
-void brcm_usb_set_family_map(struct brcm_usb_init_params *params);
-int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params);
-void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params,
- int mode);
-
-void brcm_usb_init_ipp(struct brcm_usb_init_params *ini);
-void brcm_usb_init_common(struct brcm_usb_init_params *ini);
-void brcm_usb_init_eohci(struct brcm_usb_init_params *ini);
-void brcm_usb_init_xhci(struct brcm_usb_init_params *ini);
-void brcm_usb_uninit_common(struct brcm_usb_init_params *ini);
-void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini);
-void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini);
+static inline void brcm_usb_ctrl_set(void __iomem *reg, u32 mask)
+{
+ brcm_usb_writel(brcm_usb_readl(reg) | (mask), reg);
+};
+
+static inline void brcm_usb_init_ipp(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->init_ipp)
+ ini->ops->init_ipp(ini);
+}
+
+static inline void brcm_usb_init_common(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->init_common)
+ ini->ops->init_common(ini);
+}
+
+static inline void brcm_usb_init_eohci(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->init_eohci)
+ ini->ops->init_eohci(ini);
+}
+
+static inline void brcm_usb_init_xhci(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->init_xhci)
+ ini->ops->init_xhci(ini);
+}
+
+static inline void brcm_usb_uninit_common(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->uninit_common)
+ ini->ops->uninit_common(ini);
+}
+
+static inline void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->uninit_eohci)
+ ini->ops->uninit_eohci(ini);
+}
+
+static inline void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->uninit_xhci)
+ ini->ops->uninit_xhci(ini);
+}
+
+static inline int brcm_usb_get_dual_select(struct brcm_usb_init_params *ini)
+{
+ if (ini->ops->get_dual_select)
+ return ini->ops->get_dual_select(ini);
+ return 0;
+}
+
+static inline void brcm_usb_set_dual_select(struct brcm_usb_init_params *ini,
+ int mode)
+{
+ if (ini->ops->set_dual_select)
+ ini->ops->set_dual_select(ini, mode);
+}
#endif /* _USB_BRCM_COMMON_INIT_H */
diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
index f5c1f2983a1d..491bbd46c5b3 100644
--- a/drivers/phy/broadcom/phy-brcm-usb.c
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -16,6 +16,7 @@
#include <linux/interrupt.h>
#include <linux/soc/brcmstb/brcmstb.h>
#include <dt-bindings/phy/phy.h>
+#include <linux/mfd/syscon.h>
#include "phy-brcm-usb-init.h"
@@ -32,6 +33,12 @@ struct value_to_name_map {
const char *name;
};
+struct match_chip_info {
+ void *init_func;
+ u8 required_regs[BRCM_REGS_MAX + 1];
+ u8 optional_reg;
+};
+
static struct value_to_name_map brcm_dr_mode_to_name[] = {
{ USB_CTLR_MODE_HOST, "host" },
{ USB_CTLR_MODE_DEVICE, "peripheral" },
@@ -57,11 +64,26 @@ struct brcm_usb_phy_data {
bool has_xhci;
struct clk *usb_20_clk;
struct clk *usb_30_clk;
+ struct clk *suspend_clk;
struct mutex mutex; /* serialize phy init */
int init_count;
+ int wake_irq;
struct brcm_usb_phy phys[BRCM_USB_PHY_ID_MAX];
};
+static s8 *node_reg_names[BRCM_REGS_MAX] = {
+ "crtl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec"
+};
+
+static irqreturn_t brcm_usb_phy_wake_isr(int irq, void *dev_id)
+{
+ struct phy *gphy = dev_id;
+
+ pm_wakeup_event(&gphy->dev, 0);
+
+ return IRQ_HANDLED;
+}
+
static int brcm_usb_phy_init(struct phy *gphy)
{
struct brcm_usb_phy *phy = phy_get_drvdata(gphy);
@@ -74,8 +96,9 @@ static int brcm_usb_phy_init(struct phy *gphy)
*/
mutex_lock(&priv->mutex);
if (priv->init_count++ == 0) {
- clk_enable(priv->usb_20_clk);
- clk_enable(priv->usb_30_clk);
+ clk_prepare_enable(priv->usb_20_clk);
+ clk_prepare_enable(priv->usb_30_clk);
+ clk_prepare_enable(priv->suspend_clk);
brcm_usb_init_common(&priv->ini);
}
mutex_unlock(&priv->mutex);
@@ -106,8 +129,9 @@ static int brcm_usb_phy_exit(struct phy *gphy)
mutex_lock(&priv->mutex);
if (--priv->init_count == 0) {
brcm_usb_uninit_common(&priv->ini);
- clk_disable(priv->usb_20_clk);
- clk_disable(priv->usb_30_clk);
+ clk_disable_unprepare(priv->usb_20_clk);
+ clk_disable_unprepare(priv->usb_30_clk);
+ clk_disable_unprepare(priv->suspend_clk);
}
mutex_unlock(&priv->mutex);
phy->inited = false;
@@ -194,7 +218,7 @@ static ssize_t dual_select_store(struct device *dev,
res = name_to_value(&brcm_dual_mode_to_name[0],
ARRAY_SIZE(brcm_dual_mode_to_name), buf, &value);
if (!res) {
- brcm_usb_init_set_dual_select(&priv->ini, value);
+ brcm_usb_set_dual_select(&priv->ini, value);
res = len;
}
mutex_unlock(&sysfs_lock);
@@ -209,7 +233,7 @@ static ssize_t dual_select_show(struct device *dev,
int value;
mutex_lock(&sysfs_lock);
- value = brcm_usb_init_get_dual_select(&priv->ini);
+ value = brcm_usb_get_dual_select(&priv->ini);
mutex_unlock(&sysfs_lock);
return sprintf(buf, "%s\n",
value_to_name(&brcm_dual_mode_to_name[0],
@@ -228,15 +252,106 @@ static const struct attribute_group brcm_usb_phy_group = {
.attrs = brcm_usb_phy_attrs,
};
-static int brcm_usb_phy_dvr_init(struct device *dev,
+static struct match_chip_info chip_info_7216 = {
+ .init_func = &brcm_usb_dvr_init_7216,
+ .required_regs = {
+ BRCM_REGS_CTRL,
+ BRCM_REGS_XHCI_EC,
+ BRCM_REGS_XHCI_GBL,
+ -1,
+ },
+};
+
+static struct match_chip_info chip_info_7211b0 = {
+ .init_func = &brcm_usb_dvr_init_7211b0,
+ .required_regs = {
+ BRCM_REGS_CTRL,
+ BRCM_REGS_XHCI_EC,
+ BRCM_REGS_XHCI_GBL,
+ BRCM_REGS_USB_PHY,
+ BRCM_REGS_USB_MDIO,
+ -1,
+ },
+ .optional_reg = BRCM_REGS_BDC_EC,
+};
+
+static struct match_chip_info chip_info_7445 = {
+ .init_func = &brcm_usb_dvr_init_7445,
+ .required_regs = {
+ BRCM_REGS_CTRL,
+ BRCM_REGS_XHCI_EC,
+ -1,
+ },
+};
+
+static const struct of_device_id brcm_usb_dt_ids[] = {
+ {
+ .compatible = "brcm,bcm7216-usb-phy",
+ .data = &chip_info_7216,
+ },
+ {
+ .compatible = "brcm,bcm7211-usb-phy",
+ .data = &chip_info_7211b0,
+ },
+ {
+ .compatible = "brcm,brcmstb-usb-phy",
+ .data = &chip_info_7445,
+ },
+ { /* sentinel */ }
+};
+
+static int brcm_usb_get_regs(struct platform_device *pdev,
+ enum brcmusb_reg_sel regs,
+ struct brcm_usb_init_params *ini,
+ bool optional)
+{
+ struct resource *res;
+
+ /* Older DT nodes have ctrl and optional xhci_ec by index only */
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ node_reg_names[regs]);
+ if (res == NULL) {
+ if (regs == BRCM_REGS_CTRL) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ } else if (regs == BRCM_REGS_XHCI_EC) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ /* XHCI_EC registers are optional */
+ if (res == NULL)
+ return 0;
+ }
+ if (res == NULL) {
+ if (optional) {
+ dev_dbg(&pdev->dev,
+ "Optional reg %s not found\n",
+ node_reg_names[regs]);
+ return 0;
+ }
+ dev_err(&pdev->dev, "can't get %s base addr\n",
+ node_reg_names[regs]);
+ return 1;
+ }
+ }
+ ini->regs[regs] = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(ini->regs[regs])) {
+ dev_err(&pdev->dev, "can't map %s register space\n",
+ node_reg_names[regs]);
+ return 1;
+ }
+ return 0;
+}
+
+static int brcm_usb_phy_dvr_init(struct platform_device *pdev,
struct brcm_usb_phy_data *priv,
struct device_node *dn)
{
- struct phy *gphy;
+ struct device *dev = &pdev->dev;
+ struct phy *gphy = NULL;
int err;
priv->usb_20_clk = of_clk_get_by_name(dn, "sw_usb");
if (IS_ERR(priv->usb_20_clk)) {
+ if (PTR_ERR(priv->usb_20_clk) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
dev_info(dev, "Clock not found in Device Tree\n");
priv->usb_20_clk = NULL;
}
@@ -267,6 +382,8 @@ static int brcm_usb_phy_dvr_init(struct device *dev,
priv->usb_30_clk = of_clk_get_by_name(dn, "sw_usb3");
if (IS_ERR(priv->usb_30_clk)) {
+ if (PTR_ERR(priv->usb_30_clk) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
dev_info(dev,
"USB3.0 clock not found in Device Tree\n");
priv->usb_30_clk = NULL;
@@ -275,18 +392,46 @@ static int brcm_usb_phy_dvr_init(struct device *dev,
if (err)
return err;
}
+
+ priv->suspend_clk = clk_get(dev, "usb0_freerun");
+ if (IS_ERR(priv->suspend_clk)) {
+ if (PTR_ERR(priv->suspend_clk) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_err(dev, "Suspend Clock not found in Device Tree\n");
+ priv->suspend_clk = NULL;
+ }
+
+ priv->wake_irq = platform_get_irq_byname(pdev, "wake");
+ if (priv->wake_irq < 0)
+ priv->wake_irq = platform_get_irq_byname(pdev, "wakeup");
+ if (priv->wake_irq >= 0) {
+ err = devm_request_irq(dev, priv->wake_irq,
+ brcm_usb_phy_wake_isr, 0,
+ dev_name(dev), gphy);
+ if (err < 0)
+ return err;
+ device_set_wakeup_capable(dev, 1);
+ } else {
+ dev_info(dev,
+ "Wake interrupt missing, system wake not supported\n");
+ }
+
return 0;
}
static int brcm_usb_phy_probe(struct platform_device *pdev)
{
- struct resource *res;
struct device *dev = &pdev->dev;
struct brcm_usb_phy_data *priv;
struct phy_provider *phy_provider;
struct device_node *dn = pdev->dev.of_node;
int err;
const char *mode;
+ const struct of_device_id *match;
+ void (*dvr_init)(struct brcm_usb_init_params *params);
+ const struct match_chip_info *info;
+ struct regmap *rmap;
+ int x;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -295,30 +440,14 @@ static int brcm_usb_phy_probe(struct platform_device *pdev)
priv->ini.family_id = brcmstb_get_family_id();
priv->ini.product_id = brcmstb_get_product_id();
- brcm_usb_set_family_map(&priv->ini);
+
+ match = of_match_node(brcm_usb_dt_ids, dev->of_node);
+ info = match->data;
+ dvr_init = info->init_func;
+ (*dvr_init)(&priv->ini);
+
dev_dbg(dev, "Best mapping table is for %s\n",
priv->ini.family_name);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "can't get USB_CTRL base address\n");
- return -EINVAL;
- }
- priv->ini.ctrl_regs = devm_ioremap_resource(dev, res);
- if (IS_ERR(priv->ini.ctrl_regs)) {
- dev_err(dev, "can't map CTRL register space\n");
- return -EINVAL;
- }
-
- /* The XHCI EC registers are optional */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (res) {
- priv->ini.xhci_ec_regs =
- devm_ioremap_resource(dev, res);
- if (IS_ERR(priv->ini.xhci_ec_regs)) {
- dev_err(dev, "can't map XHCI EC register space\n");
- return -EINVAL;
- }
- }
of_property_read_u32(dn, "brcm,ipp", &priv->ini.ipp);
of_property_read_u32(dn, "brcm,ioc", &priv->ini.ioc);
@@ -335,7 +464,23 @@ static int brcm_usb_phy_probe(struct platform_device *pdev)
if (of_property_read_bool(dn, "brcm,has-eohci"))
priv->has_eohci = true;
- err = brcm_usb_phy_dvr_init(dev, priv, dn);
+ for (x = 0; x < BRCM_REGS_MAX; x++) {
+ if (info->required_regs[x] >= BRCM_REGS_MAX)
+ break;
+
+ err = brcm_usb_get_regs(pdev, info->required_regs[x],
+ &priv->ini, false);
+ if (err)
+ return -EINVAL;
+ }
+ if (info->optional_reg) {
+ err = brcm_usb_get_regs(pdev, info->optional_reg,
+ &priv->ini, true);
+ if (err)
+ return -EINVAL;
+ }
+
+ err = brcm_usb_phy_dvr_init(pdev, priv, dn);
if (err)
return err;
@@ -354,14 +499,23 @@ static int brcm_usb_phy_probe(struct platform_device *pdev)
if (err)
dev_warn(dev, "Error creating sysfs attributes\n");
+ /* Get piarbctl syscon if it exists */
+ rmap = syscon_regmap_lookup_by_phandle(dev->of_node,
+ "syscon-piarbctl");
+ if (IS_ERR(rmap))
+ rmap = syscon_regmap_lookup_by_phandle(dev->of_node,
+ "brcm,syscon-piarbctl");
+ if (!IS_ERR(rmap))
+ priv->ini.syscon_piarbctl = rmap;
+
/* start with everything off */
if (priv->has_xhci)
brcm_usb_uninit_xhci(&priv->ini);
if (priv->has_eohci)
brcm_usb_uninit_eohci(&priv->ini);
brcm_usb_uninit_common(&priv->ini);
- clk_disable(priv->usb_20_clk);
- clk_disable(priv->usb_30_clk);
+ clk_disable_unprepare(priv->usb_20_clk);
+ clk_disable_unprepare(priv->usb_30_clk);
phy_provider = devm_of_phy_provider_register(dev, brcm_usb_phy_xlate);
@@ -381,8 +535,28 @@ static int brcm_usb_phy_suspend(struct device *dev)
struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
if (priv->init_count) {
- clk_disable(priv->usb_20_clk);
- clk_disable(priv->usb_30_clk);
+ priv->ini.wake_enabled = device_may_wakeup(dev);
+ if (priv->phys[BRCM_USB_PHY_3_0].inited)
+ brcm_usb_uninit_xhci(&priv->ini);
+ if (priv->phys[BRCM_USB_PHY_2_0].inited)
+ brcm_usb_uninit_eohci(&priv->ini);
+ brcm_usb_uninit_common(&priv->ini);
+
+ /*
+ * Handle the clocks unless needed for wake. This has
+ * to work for both older XHCI->3.0-clks, EOHCI->2.0-clks
+ * and newer XHCI->2.0-clks/3.0-clks.
+ */
+
+ if (!priv->ini.suspend_with_clocks) {
+ if (priv->phys[BRCM_USB_PHY_3_0].inited)
+ clk_disable_unprepare(priv->usb_30_clk);
+ if (priv->phys[BRCM_USB_PHY_2_0].inited ||
+ !priv->has_eohci)
+ clk_disable_unprepare(priv->usb_20_clk);
+ }
+ if (priv->wake_irq >= 0)
+ enable_irq_wake(priv->wake_irq);
}
return 0;
}
@@ -391,8 +565,8 @@ static int brcm_usb_phy_resume(struct device *dev)
{
struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
- clk_enable(priv->usb_20_clk);
- clk_enable(priv->usb_30_clk);
+ clk_prepare_enable(priv->usb_20_clk);
+ clk_prepare_enable(priv->usb_30_clk);
brcm_usb_init_ipp(&priv->ini);
/*
@@ -400,18 +574,22 @@ static int brcm_usb_phy_resume(struct device *dev)
* Uninitialize anything that wasn't previously initialized.
*/
if (priv->init_count) {
+ if (priv->wake_irq >= 0)
+ disable_irq_wake(priv->wake_irq);
brcm_usb_init_common(&priv->ini);
if (priv->phys[BRCM_USB_PHY_2_0].inited) {
brcm_usb_init_eohci(&priv->ini);
} else if (priv->has_eohci) {
brcm_usb_uninit_eohci(&priv->ini);
- clk_disable(priv->usb_20_clk);
+ clk_disable_unprepare(priv->usb_20_clk);
}
if (priv->phys[BRCM_USB_PHY_3_0].inited) {
brcm_usb_init_xhci(&priv->ini);
} else if (priv->has_xhci) {
brcm_usb_uninit_xhci(&priv->ini);
- clk_disable(priv->usb_30_clk);
+ clk_disable_unprepare(priv->usb_30_clk);
+ if (!priv->has_eohci)
+ clk_disable_unprepare(priv->usb_20_clk);
}
} else {
if (priv->has_xhci)
@@ -419,10 +597,10 @@ static int brcm_usb_phy_resume(struct device *dev)
if (priv->has_eohci)
brcm_usb_uninit_eohci(&priv->ini);
brcm_usb_uninit_common(&priv->ini);
- clk_disable(priv->usb_20_clk);
- clk_disable(priv->usb_30_clk);
+ clk_disable_unprepare(priv->usb_20_clk);
+ clk_disable_unprepare(priv->usb_30_clk);
}
-
+ priv->ini.wake_enabled = false;
return 0;
}
#endif /* CONFIG_PM_SLEEP */
@@ -431,11 +609,6 @@ static const struct dev_pm_ops brcm_usb_phy_pm_ops = {
SET_LATE_SYSTEM_SLEEP_PM_OPS(brcm_usb_phy_suspend, brcm_usb_phy_resume)
};
-static const struct of_device_id brcm_usb_dt_ids[] = {
- { .compatible = "brcm,brcmstb-usb-phy" },
- { /* sentinel */ }
-};
-
MODULE_DEVICE_TABLE(of, brcm_usb_dt_ids);
static struct platform_driver brcm_usb_driver = {