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path: root/drivers/phy/broadcom
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-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c46
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init.c36
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb-init.h1
-rw-r--r--drivers/phy/broadcom/phy-brcm-usb.c11
4 files changed, 85 insertions, 9 deletions
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
index e63457e145c7..d2524b70ea16 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
+++ b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c
@@ -47,6 +47,8 @@
#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_XHC_PME_EN_MASK 0x00000010
+#define USB_CTRL_USB_PM_XHC_S2_CLK_SWITCH_EN_MASK 0x00000008
#define USB_CTRL_USB_PM_STATUS 0x08
#define USB_CTRL_USB_DEVICE_CTL1 0x10
#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003
@@ -190,10 +192,6 @@ static void usb_init_common(struct brcm_usb_init_params *params)
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);
@@ -222,6 +220,17 @@ static void usb_wake_enable_7211b0(struct brcm_usb_init_params *params,
USB_CTRL_UNSET(ctrl, CTLR_CSHCR, ctl_pme_en);
}
+static void usb_wake_enable_7216(struct brcm_usb_init_params *params,
+ bool enable)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+ if (enable)
+ USB_CTRL_SET(ctrl, USB_PM, XHC_PME_EN);
+ else
+ USB_CTRL_UNSET(ctrl, USB_PM, XHC_PME_EN);
+}
+
static void usb_init_common_7211b0(struct brcm_usb_init_params *params)
{
void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
@@ -295,6 +304,20 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params)
usb2_eye_fix_7211b0(params);
}
+static void usb_init_common_7216(struct brcm_usb_init_params *params)
+{
+ void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
+
+ USB_CTRL_UNSET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN);
+ USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN);
+
+ /* 1 millisecond - for USB clocks to settle down */
+ usleep_range(1000, 2000);
+
+ usb_wake_enable_7216(params, false);
+ usb_init_common(params);
+}
+
static void usb_init_xhci(struct brcm_usb_init_params *params)
{
pr_debug("%s\n", __func__);
@@ -302,14 +325,20 @@ static void usb_init_xhci(struct brcm_usb_init_params *params)
xhci_soft_reset(params, 0);
}
-static void usb_uninit_common(struct brcm_usb_init_params *params)
+static void usb_uninit_common_7216(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);
+ if (!params->wake_enabled) {
+ USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN);
+ /* Switch to using slower clock during suspend to save power */
+ USB_CTRL_SET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN);
+ } else {
+ usb_wake_enable_7216(params, true);
+ }
}
static void usb_uninit_common_7211b0(struct brcm_usb_init_params *params)
@@ -371,9 +400,9 @@ static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode)
static const struct brcm_usb_init_ops bcm7216_ops = {
.init_ipp = usb_init_ipp,
- .init_common = usb_init_common,
+ .init_common = usb_init_common_7216,
.init_xhci = usb_init_xhci,
- .uninit_common = usb_uninit_common,
+ .uninit_common = usb_uninit_common_7216,
.uninit_xhci = usb_uninit_xhci,
.get_dual_select = usb_get_dual_select,
.set_dual_select = usb_set_dual_select,
@@ -396,6 +425,7 @@ void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params)
params->family_name = "7216";
params->ops = &bcm7216_ops;
+ params->suspend_with_clocks = true;
}
void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params)
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.c b/drivers/phy/broadcom/phy-brcm-usb-init.c
index 9391ab42a12b..dd0f66288fbd 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init.c
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.c
@@ -79,6 +79,7 @@
enum brcm_family_type {
BRCM_FAMILY_3390A0,
+ BRCM_FAMILY_4908,
BRCM_FAMILY_7250B0,
BRCM_FAMILY_7271A0,
BRCM_FAMILY_7364A0,
@@ -96,6 +97,7 @@ enum brcm_family_type {
static const char *family_names[BRCM_FAMILY_COUNT] = {
USB_BRCM_FAMILY(3390A0),
+ USB_BRCM_FAMILY(4908),
USB_BRCM_FAMILY(7250B0),
USB_BRCM_FAMILY(7271A0),
USB_BRCM_FAMILY(7364A0),
@@ -203,6 +205,27 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
},
+ /* 4908 */
+ [BRCM_FAMILY_4908] = {
+ 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
+ 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
+ 0, /* USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
+ 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
+ 0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
+ 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
+ 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
+ USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
+ USB_CTRL_USB_PM_USB_PWRDN_MASK,
+ 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+ 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+ 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+ 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
+ 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+ 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+ 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+ 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK */
+ 0, /* USB_CTRL_SETUP ENDIAN bits */
+ },
/* 7250b0 */
[BRCM_FAMILY_7250B0] = {
USB_CTRL_SETUP_SCB1_EN_MASK,
@@ -559,6 +582,7 @@ static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params)
*/
switch (params->selected_family) {
case BRCM_FAMILY_3390A0:
+ case BRCM_FAMILY_4908:
case BRCM_FAMILY_7250B0:
case BRCM_FAMILY_7366C0:
case BRCM_FAMILY_74371A0:
@@ -1004,6 +1028,18 @@ static const struct brcm_usb_init_ops bcm7445_ops = {
.set_dual_select = usb_set_dual_select,
};
+void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params)
+{
+ int fam;
+
+ fam = BRCM_FAMILY_4908;
+ 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;
+}
+
void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params)
{
int fam;
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.h b/drivers/phy/broadcom/phy-brcm-usb-init.h
index a39f30fa2e99..1ccb5ddab865 100644
--- a/drivers/phy/broadcom/phy-brcm-usb-init.h
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.h
@@ -64,6 +64,7 @@ struct brcm_usb_init_params {
bool suspend_with_clocks;
};
+void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params);
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);
diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
index 0f1deb6e0eab..2cb3779fcdf8 100644
--- a/drivers/phy/broadcom/phy-brcm-usb.c
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -283,6 +283,15 @@ static const struct attribute_group brcm_usb_phy_group = {
.attrs = brcm_usb_phy_attrs,
};
+static const struct match_chip_info chip_info_4908 = {
+ .init_func = &brcm_usb_dvr_init_4908,
+ .required_regs = {
+ BRCM_REGS_CTRL,
+ BRCM_REGS_XHCI_EC,
+ -1,
+ },
+};
+
static const struct match_chip_info chip_info_7216 = {
.init_func = &brcm_usb_dvr_init_7216,
.required_regs = {
@@ -318,7 +327,7 @@ static const struct match_chip_info chip_info_7445 = {
static const struct of_device_id brcm_usb_dt_ids[] = {
{
.compatible = "brcm,bcm4908-usb-phy",
- .data = &chip_info_7445,
+ .data = &chip_info_4908,
},
{
.compatible = "brcm,bcm7216-usb-phy",
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-01 15:20:48 +0300