Add a params.c file and move all driver parameter code there, including all the static parameter definitions. Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx> --- drivers/usb/dwc2/Makefile | 1 + drivers/usb/dwc2/core.c | 918 +---------------------------------- drivers/usb/dwc2/core.h | 5 + drivers/usb/dwc2/params.c | 1125 +++++++++++++++++++++++++++++++++++++++++++ drivers/usb/dwc2/platform.c | 173 ------- 5 files changed, 1133 insertions(+), 1089 deletions(-) create mode 100644 drivers/usb/dwc2/params.c diff --git a/drivers/usb/dwc2/Makefile b/drivers/usb/dwc2/Makefile index 50fdaac..b9237e1 100644 --- a/drivers/usb/dwc2/Makefile +++ b/drivers/usb/dwc2/Makefile @@ -3,6 +3,7 @@ ccflags-$(CONFIG_USB_DWC2_VERBOSE) += -DVERBOSE_DEBUG obj-$(CONFIG_USB_DWC2) += dwc2.o dwc2-y := core.o core_intr.o platform.o +dwc2-y += params.o ifneq ($(filter y,$(CONFIG_USB_DWC2_HOST) $(CONFIG_USB_DWC2_DUAL_ROLE)),) dwc2-y += hcd.o hcd_intr.o diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index 4c0fa0b..e1f1b19 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -445,7 +445,7 @@ static bool dwc2_force_mode(struct dwc2_hsotg *hsotg, bool host) * the force mode. We only need to call this once during probe if * dr_mode == OTG. */ -static void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg) +void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg) { u32 gusbcfg; @@ -735,704 +735,13 @@ void dwc2_flush_rx_fifo(struct dwc2_hsotg *hsotg) udelay(1); } -#define DWC2_OUT_OF_BOUNDS(a, b, c) ((a) < (b) || (a) > (c)) - -/* Parameter access functions */ -void dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - switch (val) { - case DWC2_CAP_PARAM_HNP_SRP_CAPABLE: - if (hsotg->hw_params.op_mode != GHWCFG2_OP_MODE_HNP_SRP_CAPABLE) - valid = 0; - break; - case DWC2_CAP_PARAM_SRP_ONLY_CAPABLE: - switch (hsotg->hw_params.op_mode) { - case GHWCFG2_OP_MODE_HNP_SRP_CAPABLE: - case GHWCFG2_OP_MODE_SRP_ONLY_CAPABLE: - case GHWCFG2_OP_MODE_SRP_CAPABLE_DEVICE: - case GHWCFG2_OP_MODE_SRP_CAPABLE_HOST: - break; - default: - valid = 0; - break; - } - break; - case DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE: - /* always valid */ - break; - default: - valid = 0; - break; - } - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for otg_cap parameter. Check HW configuration.\n", - val); - switch (hsotg->hw_params.op_mode) { - case GHWCFG2_OP_MODE_HNP_SRP_CAPABLE: - val = DWC2_CAP_PARAM_HNP_SRP_CAPABLE; - break; - case GHWCFG2_OP_MODE_SRP_ONLY_CAPABLE: - case GHWCFG2_OP_MODE_SRP_CAPABLE_DEVICE: - case GHWCFG2_OP_MODE_SRP_CAPABLE_HOST: - val = DWC2_CAP_PARAM_SRP_ONLY_CAPABLE; - break; - default: - val = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; - break; - } - dev_dbg(hsotg->dev, "Setting otg_cap to %d\n", val); - } - - hsotg->core_params->otg_cap = val; -} - -void dwc2_set_param_dma_enable(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val > 0 && hsotg->hw_params.arch == GHWCFG2_SLAVE_ONLY_ARCH) - valid = 0; - if (val < 0) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for dma_enable parameter. Check HW configuration.\n", - val); - val = hsotg->hw_params.arch != GHWCFG2_SLAVE_ONLY_ARCH; - dev_dbg(hsotg->dev, "Setting dma_enable to %d\n", val); - } - - hsotg->core_params->dma_enable = val; -} - -void dwc2_set_param_dma_desc_enable(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val > 0 && (hsotg->core_params->dma_enable <= 0 || - !hsotg->hw_params.dma_desc_enable)) - valid = 0; - if (val < 0) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for dma_desc_enable parameter. Check HW configuration.\n", - val); - val = (hsotg->core_params->dma_enable > 0 && - hsotg->hw_params.dma_desc_enable); - dev_dbg(hsotg->dev, "Setting dma_desc_enable to %d\n", val); - } - - hsotg->core_params->dma_desc_enable = val; -} - -void dwc2_set_param_dma_desc_fs_enable(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val > 0 && (hsotg->core_params->dma_enable <= 0 || - !hsotg->hw_params.dma_desc_enable)) - valid = 0; - if (val < 0) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for dma_desc_fs_enable parameter. Check HW configuration.\n", - val); - val = (hsotg->core_params->dma_enable > 0 && - hsotg->hw_params.dma_desc_enable); - } - - hsotg->core_params->dma_desc_fs_enable = val; - dev_dbg(hsotg->dev, "Setting dma_desc_fs_enable to %d\n", val); -} - -void dwc2_set_param_host_support_fs_ls_low_power(struct dwc2_hsotg *hsotg, - int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "Wrong value for host_support_fs_low_power\n"); - dev_err(hsotg->dev, - "host_support_fs_low_power must be 0 or 1\n"); - } - val = 0; - dev_dbg(hsotg->dev, - "Setting host_support_fs_low_power to %d\n", val); - } - - hsotg->core_params->host_support_fs_ls_low_power = val; -} - -void dwc2_set_param_enable_dynamic_fifo(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val > 0 && !hsotg->hw_params.enable_dynamic_fifo) - valid = 0; - if (val < 0) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for enable_dynamic_fifo parameter. Check HW configuration.\n", - val); - val = hsotg->hw_params.enable_dynamic_fifo; - dev_dbg(hsotg->dev, "Setting enable_dynamic_fifo to %d\n", val); - } - - hsotg->core_params->enable_dynamic_fifo = val; -} - -void dwc2_set_param_host_rx_fifo_size(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val < 16 || val > hsotg->hw_params.host_rx_fifo_size) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for host_rx_fifo_size. Check HW configuration.\n", - val); - val = hsotg->hw_params.host_rx_fifo_size; - dev_dbg(hsotg->dev, "Setting host_rx_fifo_size to %d\n", val); - } - - hsotg->core_params->host_rx_fifo_size = val; -} - -void dwc2_set_param_host_nperio_tx_fifo_size(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val < 16 || val > hsotg->hw_params.host_nperio_tx_fifo_size) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for host_nperio_tx_fifo_size. Check HW configuration.\n", - val); - val = hsotg->hw_params.host_nperio_tx_fifo_size; - dev_dbg(hsotg->dev, "Setting host_nperio_tx_fifo_size to %d\n", - val); - } - - hsotg->core_params->host_nperio_tx_fifo_size = val; -} - -void dwc2_set_param_host_perio_tx_fifo_size(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val < 16 || val > hsotg->hw_params.host_perio_tx_fifo_size) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for host_perio_tx_fifo_size. Check HW configuration.\n", - val); - val = hsotg->hw_params.host_perio_tx_fifo_size; - dev_dbg(hsotg->dev, "Setting host_perio_tx_fifo_size to %d\n", - val); - } - - hsotg->core_params->host_perio_tx_fifo_size = val; -} - -void dwc2_set_param_max_transfer_size(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val < 2047 || val > hsotg->hw_params.max_transfer_size) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for max_transfer_size. Check HW configuration.\n", - val); - val = hsotg->hw_params.max_transfer_size; - dev_dbg(hsotg->dev, "Setting max_transfer_size to %d\n", val); - } - - hsotg->core_params->max_transfer_size = val; -} - -void dwc2_set_param_max_packet_count(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val < 15 || val > hsotg->hw_params.max_packet_count) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for max_packet_count. Check HW configuration.\n", - val); - val = hsotg->hw_params.max_packet_count; - dev_dbg(hsotg->dev, "Setting max_packet_count to %d\n", val); - } - - hsotg->core_params->max_packet_count = val; -} - -void dwc2_set_param_host_channels(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (val < 1 || val > hsotg->hw_params.host_channels) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for host_channels. Check HW configuration.\n", - val); - val = hsotg->hw_params.host_channels; - dev_dbg(hsotg->dev, "Setting host_channels to %d\n", val); - } - - hsotg->core_params->host_channels = val; -} - -void dwc2_set_param_phy_type(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 0; - u32 hs_phy_type, fs_phy_type; - - if (DWC2_OUT_OF_BOUNDS(val, DWC2_PHY_TYPE_PARAM_FS, - DWC2_PHY_TYPE_PARAM_ULPI)) { - if (val >= 0) { - dev_err(hsotg->dev, "Wrong value for phy_type\n"); - dev_err(hsotg->dev, "phy_type must be 0, 1 or 2\n"); - } - - valid = 0; - } - - hs_phy_type = hsotg->hw_params.hs_phy_type; - fs_phy_type = hsotg->hw_params.fs_phy_type; - if (val == DWC2_PHY_TYPE_PARAM_UTMI && - (hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI || - hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI)) - valid = 1; - else if (val == DWC2_PHY_TYPE_PARAM_ULPI && - (hs_phy_type == GHWCFG2_HS_PHY_TYPE_ULPI || - hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI)) - valid = 1; - else if (val == DWC2_PHY_TYPE_PARAM_FS && - fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED) - valid = 1; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for phy_type. Check HW configuration.\n", - val); - val = DWC2_PHY_TYPE_PARAM_FS; - if (hs_phy_type != GHWCFG2_HS_PHY_TYPE_NOT_SUPPORTED) { - if (hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI || - hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI) - val = DWC2_PHY_TYPE_PARAM_UTMI; - else - val = DWC2_PHY_TYPE_PARAM_ULPI; - } - dev_dbg(hsotg->dev, "Setting phy_type to %d\n", val); - } - - hsotg->core_params->phy_type = val; -} - -static int dwc2_get_param_phy_type(struct dwc2_hsotg *hsotg) -{ - return hsotg->core_params->phy_type; -} - -void dwc2_set_param_speed(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, "Wrong value for speed parameter\n"); - dev_err(hsotg->dev, "max_speed parameter must be 0 or 1\n"); - } - valid = 0; - } - - if (val == DWC2_SPEED_PARAM_HIGH && - dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for speed parameter. Check HW configuration.\n", - val); - val = dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS ? - DWC2_SPEED_PARAM_FULL : DWC2_SPEED_PARAM_HIGH; - dev_dbg(hsotg->dev, "Setting speed to %d\n", val); - } - - hsotg->core_params->speed = val; -} - -void dwc2_set_param_host_ls_low_power_phy_clk(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (DWC2_OUT_OF_BOUNDS(val, DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ, - DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ)) { - if (val >= 0) { - dev_err(hsotg->dev, - "Wrong value for host_ls_low_power_phy_clk parameter\n"); - dev_err(hsotg->dev, - "host_ls_low_power_phy_clk must be 0 or 1\n"); - } - valid = 0; - } - - if (val == DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ && - dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for host_ls_low_power_phy_clk. Check HW configuration.\n", - val); - val = dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS - ? DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ - : DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ; - dev_dbg(hsotg->dev, "Setting host_ls_low_power_phy_clk to %d\n", - val); - } - - hsotg->core_params->host_ls_low_power_phy_clk = val; -} - -void dwc2_set_param_phy_ulpi_ddr(struct dwc2_hsotg *hsotg, int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, "Wrong value for phy_ulpi_ddr\n"); - dev_err(hsotg->dev, "phy_upli_ddr must be 0 or 1\n"); - } - val = 0; - dev_dbg(hsotg->dev, "Setting phy_upli_ddr to %d\n", val); - } - - hsotg->core_params->phy_ulpi_ddr = val; -} - -void dwc2_set_param_phy_ulpi_ext_vbus(struct dwc2_hsotg *hsotg, int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "Wrong value for phy_ulpi_ext_vbus\n"); - dev_err(hsotg->dev, - "phy_ulpi_ext_vbus must be 0 or 1\n"); - } - val = 0; - dev_dbg(hsotg->dev, "Setting phy_ulpi_ext_vbus to %d\n", val); - } - - hsotg->core_params->phy_ulpi_ext_vbus = val; -} - -void dwc2_set_param_phy_utmi_width(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 0; - - switch (hsotg->hw_params.utmi_phy_data_width) { - case GHWCFG4_UTMI_PHY_DATA_WIDTH_8: - valid = (val == 8); - break; - case GHWCFG4_UTMI_PHY_DATA_WIDTH_16: - valid = (val == 16); - break; - case GHWCFG4_UTMI_PHY_DATA_WIDTH_8_OR_16: - valid = (val == 8 || val == 16); - break; - } - - if (!valid) { - if (val >= 0) { - dev_err(hsotg->dev, - "%d invalid for phy_utmi_width. Check HW configuration.\n", - val); - } - val = (hsotg->hw_params.utmi_phy_data_width == - GHWCFG4_UTMI_PHY_DATA_WIDTH_8) ? 8 : 16; - dev_dbg(hsotg->dev, "Setting phy_utmi_width to %d\n", val); - } - - hsotg->core_params->phy_utmi_width = val; -} - -void dwc2_set_param_ulpi_fs_ls(struct dwc2_hsotg *hsotg, int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, "Wrong value for ulpi_fs_ls\n"); - dev_err(hsotg->dev, "ulpi_fs_ls must be 0 or 1\n"); - } - val = 0; - dev_dbg(hsotg->dev, "Setting ulpi_fs_ls to %d\n", val); - } - - hsotg->core_params->ulpi_fs_ls = val; -} - -void dwc2_set_param_ts_dline(struct dwc2_hsotg *hsotg, int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, "Wrong value for ts_dline\n"); - dev_err(hsotg->dev, "ts_dline must be 0 or 1\n"); - } - val = 0; - dev_dbg(hsotg->dev, "Setting ts_dline to %d\n", val); - } - - hsotg->core_params->ts_dline = val; -} - -void dwc2_set_param_i2c_enable(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, "Wrong value for i2c_enable\n"); - dev_err(hsotg->dev, "i2c_enable must be 0 or 1\n"); - } - - valid = 0; - } - - if (val == 1 && !(hsotg->hw_params.i2c_enable)) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for i2c_enable. Check HW configuration.\n", - val); - val = hsotg->hw_params.i2c_enable; - dev_dbg(hsotg->dev, "Setting i2c_enable to %d\n", val); - } - - hsotg->core_params->i2c_enable = val; -} - -void dwc2_set_param_en_multiple_tx_fifo(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "Wrong value for en_multiple_tx_fifo,\n"); - dev_err(hsotg->dev, - "en_multiple_tx_fifo must be 0 or 1\n"); - } - valid = 0; - } - - if (val == 1 && !hsotg->hw_params.en_multiple_tx_fifo) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for parameter en_multiple_tx_fifo. Check HW configuration.\n", - val); - val = hsotg->hw_params.en_multiple_tx_fifo; - dev_dbg(hsotg->dev, "Setting en_multiple_tx_fifo to %d\n", val); - } - - hsotg->core_params->en_multiple_tx_fifo = val; -} - -void dwc2_set_param_reload_ctl(struct dwc2_hsotg *hsotg, int val) -{ - int valid = 1; - - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "'%d' invalid for parameter reload_ctl\n", val); - dev_err(hsotg->dev, "reload_ctl must be 0 or 1\n"); - } - valid = 0; - } - - if (val == 1 && hsotg->hw_params.snpsid < DWC2_CORE_REV_2_92a) - valid = 0; - - if (!valid) { - if (val >= 0) - dev_err(hsotg->dev, - "%d invalid for parameter reload_ctl. Check HW configuration.\n", - val); - val = hsotg->hw_params.snpsid >= DWC2_CORE_REV_2_92a; - dev_dbg(hsotg->dev, "Setting reload_ctl to %d\n", val); - } - - hsotg->core_params->reload_ctl = val; -} - -void dwc2_set_param_ahbcfg(struct dwc2_hsotg *hsotg, int val) -{ - if (val != -1) - hsotg->core_params->ahbcfg = val; - else - hsotg->core_params->ahbcfg = GAHBCFG_HBSTLEN_INCR4 << - GAHBCFG_HBSTLEN_SHIFT; -} - -void dwc2_set_param_otg_ver(struct dwc2_hsotg *hsotg, int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "'%d' invalid for parameter otg_ver\n", val); - dev_err(hsotg->dev, - "otg_ver must be 0 (for OTG 1.3 support) or 1 (for OTG 2.0 support)\n"); - } - val = 0; - dev_dbg(hsotg->dev, "Setting otg_ver to %d\n", val); - } - - hsotg->core_params->otg_ver = val; -} - -static void dwc2_set_param_uframe_sched(struct dwc2_hsotg *hsotg, int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "'%d' invalid for parameter uframe_sched\n", - val); - dev_err(hsotg->dev, "uframe_sched must be 0 or 1\n"); - } - val = 1; - dev_dbg(hsotg->dev, "Setting uframe_sched to %d\n", val); - } - - hsotg->core_params->uframe_sched = val; -} - -static void dwc2_set_param_external_id_pin_ctl(struct dwc2_hsotg *hsotg, - int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "'%d' invalid for parameter external_id_pin_ctl\n", - val); - dev_err(hsotg->dev, "external_id_pin_ctl must be 0 or 1\n"); - } - val = 0; - dev_dbg(hsotg->dev, "Setting external_id_pin_ctl to %d\n", val); - } - - hsotg->core_params->external_id_pin_ctl = val; -} - -static void dwc2_set_param_hibernation(struct dwc2_hsotg *hsotg, - int val) -{ - if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { - if (val >= 0) { - dev_err(hsotg->dev, - "'%d' invalid for parameter hibernation\n", - val); - dev_err(hsotg->dev, "hibernation must be 0 or 1\n"); - } - val = 0; - dev_dbg(hsotg->dev, "Setting hibernation to %d\n", val); - } - - hsotg->core_params->hibernation = val; -} - -/* - * This function is called during module intialization to pass module parameters - * for the DWC_otg core. - */ -void dwc2_set_parameters(struct dwc2_hsotg *hsotg, - const struct dwc2_core_params *params) -{ - dev_dbg(hsotg->dev, "%s()\n", __func__); - - dwc2_set_param_otg_cap(hsotg, params->otg_cap); - dwc2_set_param_dma_enable(hsotg, params->dma_enable); - dwc2_set_param_dma_desc_enable(hsotg, params->dma_desc_enable); - dwc2_set_param_dma_desc_fs_enable(hsotg, params->dma_desc_fs_enable); - dwc2_set_param_host_support_fs_ls_low_power(hsotg, - params->host_support_fs_ls_low_power); - dwc2_set_param_enable_dynamic_fifo(hsotg, - params->enable_dynamic_fifo); - dwc2_set_param_host_rx_fifo_size(hsotg, - params->host_rx_fifo_size); - dwc2_set_param_host_nperio_tx_fifo_size(hsotg, - params->host_nperio_tx_fifo_size); - dwc2_set_param_host_perio_tx_fifo_size(hsotg, - params->host_perio_tx_fifo_size); - dwc2_set_param_max_transfer_size(hsotg, - params->max_transfer_size); - dwc2_set_param_max_packet_count(hsotg, - params->max_packet_count); - dwc2_set_param_host_channels(hsotg, params->host_channels); - dwc2_set_param_phy_type(hsotg, params->phy_type); - dwc2_set_param_speed(hsotg, params->speed); - dwc2_set_param_host_ls_low_power_phy_clk(hsotg, - params->host_ls_low_power_phy_clk); - dwc2_set_param_phy_ulpi_ddr(hsotg, params->phy_ulpi_ddr); - dwc2_set_param_phy_ulpi_ext_vbus(hsotg, - params->phy_ulpi_ext_vbus); - dwc2_set_param_phy_utmi_width(hsotg, params->phy_utmi_width); - dwc2_set_param_ulpi_fs_ls(hsotg, params->ulpi_fs_ls); - dwc2_set_param_ts_dline(hsotg, params->ts_dline); - dwc2_set_param_i2c_enable(hsotg, params->i2c_enable); - dwc2_set_param_en_multiple_tx_fifo(hsotg, - params->en_multiple_tx_fifo); - dwc2_set_param_reload_ctl(hsotg, params->reload_ctl); - dwc2_set_param_ahbcfg(hsotg, params->ahbcfg); - dwc2_set_param_otg_ver(hsotg, params->otg_ver); - dwc2_set_param_uframe_sched(hsotg, params->uframe_sched); - dwc2_set_param_external_id_pin_ctl(hsotg, params->external_id_pin_ctl); - dwc2_set_param_hibernation(hsotg, params->hibernation); -} - /* * Forces either host or device mode if the controller is not * currently in that mode. * * Returns true if the mode was forced. */ -static bool dwc2_force_mode_if_needed(struct dwc2_hsotg *hsotg, bool host) +bool dwc2_force_mode_if_needed(struct dwc2_hsotg *hsotg, bool host) { if (host && dwc2_is_host_mode(hsotg)) return false; @@ -1442,229 +751,6 @@ static bool dwc2_force_mode_if_needed(struct dwc2_hsotg *hsotg, bool host) return dwc2_force_mode(hsotg, host); } -/* - * Gets host hardware parameters. Forces host mode if not currently in - * host mode. Should be called immediately after a core soft reset in - * order to get the reset values. - */ -static void dwc2_get_host_hwparams(struct dwc2_hsotg *hsotg) -{ - struct dwc2_hw_params *hw = &hsotg->hw_params; - u32 gnptxfsiz; - u32 hptxfsiz; - bool forced; - - if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) - return; - - forced = dwc2_force_mode_if_needed(hsotg, true); - - gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ); - hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ); - dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz); - dev_dbg(hsotg->dev, "hptxfsiz=%08x\n", hptxfsiz); - - if (forced) - dwc2_clear_force_mode(hsotg); - - hw->host_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >> - FIFOSIZE_DEPTH_SHIFT; - hw->host_perio_tx_fifo_size = (hptxfsiz & FIFOSIZE_DEPTH_MASK) >> - FIFOSIZE_DEPTH_SHIFT; -} - -/* - * Gets device hardware parameters. Forces device mode if not - * currently in device mode. Should be called immediately after a core - * soft reset in order to get the reset values. - */ -static void dwc2_get_dev_hwparams(struct dwc2_hsotg *hsotg) -{ - struct dwc2_hw_params *hw = &hsotg->hw_params; - bool forced; - u32 gnptxfsiz; - - if (hsotg->dr_mode == USB_DR_MODE_HOST) - return; - - forced = dwc2_force_mode_if_needed(hsotg, false); - - gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ); - dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz); - - if (forced) - dwc2_clear_force_mode(hsotg); - - hw->dev_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >> - FIFOSIZE_DEPTH_SHIFT; -} - -/** - * During device initialization, read various hardware configuration - * registers and interpret the contents. - */ -int dwc2_get_hwparams(struct dwc2_hsotg *hsotg) -{ - struct dwc2_hw_params *hw = &hsotg->hw_params; - unsigned width; - u32 hwcfg1, hwcfg2, hwcfg3, hwcfg4; - u32 grxfsiz; - - /* - * Attempt to ensure this device is really a DWC_otg Controller. - * Read and verify the GSNPSID register contents. The value should be - * 0x45f42xxx or 0x45f43xxx, which corresponds to either "OT2" or "OT3", - * as in "OTG version 2.xx" or "OTG version 3.xx". - */ - hw->snpsid = dwc2_readl(hsotg->regs + GSNPSID); - if ((hw->snpsid & 0xfffff000) != 0x4f542000 && - (hw->snpsid & 0xfffff000) != 0x4f543000) { - dev_err(hsotg->dev, "Bad value for GSNPSID: 0x%08x\n", - hw->snpsid); - return -ENODEV; - } - - dev_dbg(hsotg->dev, "Core Release: %1x.%1x%1x%1x (snpsid=%x)\n", - hw->snpsid >> 12 & 0xf, hw->snpsid >> 8 & 0xf, - hw->snpsid >> 4 & 0xf, hw->snpsid & 0xf, hw->snpsid); - - hwcfg1 = dwc2_readl(hsotg->regs + GHWCFG1); - hwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2); - hwcfg3 = dwc2_readl(hsotg->regs + GHWCFG3); - hwcfg4 = dwc2_readl(hsotg->regs + GHWCFG4); - grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ); - - dev_dbg(hsotg->dev, "hwcfg1=%08x\n", hwcfg1); - dev_dbg(hsotg->dev, "hwcfg2=%08x\n", hwcfg2); - dev_dbg(hsotg->dev, "hwcfg3=%08x\n", hwcfg3); - dev_dbg(hsotg->dev, "hwcfg4=%08x\n", hwcfg4); - dev_dbg(hsotg->dev, "grxfsiz=%08x\n", grxfsiz); - - /* - * Host specific hardware parameters. Reading these parameters - * requires the controller to be in host mode. The mode will - * be forced, if necessary, to read these values. - */ - dwc2_get_host_hwparams(hsotg); - dwc2_get_dev_hwparams(hsotg); - - /* hwcfg1 */ - hw->dev_ep_dirs = hwcfg1; - - /* hwcfg2 */ - hw->op_mode = (hwcfg2 & GHWCFG2_OP_MODE_MASK) >> - GHWCFG2_OP_MODE_SHIFT; - hw->arch = (hwcfg2 & GHWCFG2_ARCHITECTURE_MASK) >> - GHWCFG2_ARCHITECTURE_SHIFT; - hw->enable_dynamic_fifo = !!(hwcfg2 & GHWCFG2_DYNAMIC_FIFO); - hw->host_channels = 1 + ((hwcfg2 & GHWCFG2_NUM_HOST_CHAN_MASK) >> - GHWCFG2_NUM_HOST_CHAN_SHIFT); - hw->hs_phy_type = (hwcfg2 & GHWCFG2_HS_PHY_TYPE_MASK) >> - GHWCFG2_HS_PHY_TYPE_SHIFT; - hw->fs_phy_type = (hwcfg2 & GHWCFG2_FS_PHY_TYPE_MASK) >> - GHWCFG2_FS_PHY_TYPE_SHIFT; - hw->num_dev_ep = (hwcfg2 & GHWCFG2_NUM_DEV_EP_MASK) >> - GHWCFG2_NUM_DEV_EP_SHIFT; - hw->nperio_tx_q_depth = - (hwcfg2 & GHWCFG2_NONPERIO_TX_Q_DEPTH_MASK) >> - GHWCFG2_NONPERIO_TX_Q_DEPTH_SHIFT << 1; - hw->host_perio_tx_q_depth = - (hwcfg2 & GHWCFG2_HOST_PERIO_TX_Q_DEPTH_MASK) >> - GHWCFG2_HOST_PERIO_TX_Q_DEPTH_SHIFT << 1; - hw->dev_token_q_depth = - (hwcfg2 & GHWCFG2_DEV_TOKEN_Q_DEPTH_MASK) >> - GHWCFG2_DEV_TOKEN_Q_DEPTH_SHIFT; - - /* hwcfg3 */ - width = (hwcfg3 & GHWCFG3_XFER_SIZE_CNTR_WIDTH_MASK) >> - GHWCFG3_XFER_SIZE_CNTR_WIDTH_SHIFT; - hw->max_transfer_size = (1 << (width + 11)) - 1; - width = (hwcfg3 & GHWCFG3_PACKET_SIZE_CNTR_WIDTH_MASK) >> - GHWCFG3_PACKET_SIZE_CNTR_WIDTH_SHIFT; - hw->max_packet_count = (1 << (width + 4)) - 1; - hw->i2c_enable = !!(hwcfg3 & GHWCFG3_I2C); - hw->total_fifo_size = (hwcfg3 & GHWCFG3_DFIFO_DEPTH_MASK) >> - GHWCFG3_DFIFO_DEPTH_SHIFT; - - /* hwcfg4 */ - hw->en_multiple_tx_fifo = !!(hwcfg4 & GHWCFG4_DED_FIFO_EN); - hw->num_dev_perio_in_ep = (hwcfg4 & GHWCFG4_NUM_DEV_PERIO_IN_EP_MASK) >> - GHWCFG4_NUM_DEV_PERIO_IN_EP_SHIFT; - hw->dma_desc_enable = !!(hwcfg4 & GHWCFG4_DESC_DMA); - hw->power_optimized = !!(hwcfg4 & GHWCFG4_POWER_OPTIMIZ); - hw->utmi_phy_data_width = (hwcfg4 & GHWCFG4_UTMI_PHY_DATA_WIDTH_MASK) >> - GHWCFG4_UTMI_PHY_DATA_WIDTH_SHIFT; - - /* fifo sizes */ - hw->host_rx_fifo_size = (grxfsiz & GRXFSIZ_DEPTH_MASK) >> - GRXFSIZ_DEPTH_SHIFT; - - dev_dbg(hsotg->dev, "Detected values from hardware:\n"); - dev_dbg(hsotg->dev, " op_mode=%d\n", - hw->op_mode); - dev_dbg(hsotg->dev, " arch=%d\n", - hw->arch); - dev_dbg(hsotg->dev, " dma_desc_enable=%d\n", - hw->dma_desc_enable); - dev_dbg(hsotg->dev, " power_optimized=%d\n", - hw->power_optimized); - dev_dbg(hsotg->dev, " i2c_enable=%d\n", - hw->i2c_enable); - dev_dbg(hsotg->dev, " hs_phy_type=%d\n", - hw->hs_phy_type); - dev_dbg(hsotg->dev, " fs_phy_type=%d\n", - hw->fs_phy_type); - dev_dbg(hsotg->dev, " utmi_phy_data_width=%d\n", - hw->utmi_phy_data_width); - dev_dbg(hsotg->dev, " num_dev_ep=%d\n", - hw->num_dev_ep); - dev_dbg(hsotg->dev, " num_dev_perio_in_ep=%d\n", - hw->num_dev_perio_in_ep); - dev_dbg(hsotg->dev, " host_channels=%d\n", - hw->host_channels); - dev_dbg(hsotg->dev, " max_transfer_size=%d\n", - hw->max_transfer_size); - dev_dbg(hsotg->dev, " max_packet_count=%d\n", - hw->max_packet_count); - dev_dbg(hsotg->dev, " nperio_tx_q_depth=0x%0x\n", - hw->nperio_tx_q_depth); - dev_dbg(hsotg->dev, " host_perio_tx_q_depth=0x%0x\n", - hw->host_perio_tx_q_depth); - dev_dbg(hsotg->dev, " dev_token_q_depth=0x%0x\n", - hw->dev_token_q_depth); - dev_dbg(hsotg->dev, " enable_dynamic_fifo=%d\n", - hw->enable_dynamic_fifo); - dev_dbg(hsotg->dev, " en_multiple_tx_fifo=%d\n", - hw->en_multiple_tx_fifo); - dev_dbg(hsotg->dev, " total_fifo_size=%d\n", - hw->total_fifo_size); - dev_dbg(hsotg->dev, " host_rx_fifo_size=%d\n", - hw->host_rx_fifo_size); - dev_dbg(hsotg->dev, " host_nperio_tx_fifo_size=%d\n", - hw->host_nperio_tx_fifo_size); - dev_dbg(hsotg->dev, " host_perio_tx_fifo_size=%d\n", - hw->host_perio_tx_fifo_size); - dev_dbg(hsotg->dev, "\n"); - - return 0; -} - -/* - * Sets all parameters to the given value. - * - * Assumes that the dwc2_core_params struct contains only integers. - */ -void dwc2_set_all_params(struct dwc2_core_params *params, int value) -{ - int *p = (int *)params; - size_t size = sizeof(*params) / sizeof(*p); - int i; - - for (i = 0; i < size; i++) - p[i] = value; -} - - u16 dwc2_get_otg_version(struct dwc2_hsotg *hsotg) { return hsotg->core_params->otg_ver == 1 ? 0x0200 : 0x0103; diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 086bbdf..35337ff 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -1024,6 +1024,8 @@ extern int dwc2_core_reset_and_force_dr_mode(struct dwc2_hsotg *hsotg); extern int dwc2_enter_hibernation(struct dwc2_hsotg *hsotg); extern int dwc2_exit_hibernation(struct dwc2_hsotg *hsotg, bool restore); +bool dwc2_force_mode_if_needed(struct dwc2_hsotg *hsotg, bool host); +void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg); void dwc2_force_dr_mode(struct dwc2_hsotg *hsotg); extern bool dwc2_is_controller_alive(struct dwc2_hsotg *hsotg); @@ -1043,6 +1045,9 @@ extern void dwc2_disable_global_interrupts(struct dwc2_hsotg *hcd); /* This function should be called on every hardware interrupt. */ extern irqreturn_t dwc2_handle_common_intr(int irq, void *dev); +/* The device ID match table */ +extern const struct of_device_id dwc2_of_match_table[]; + /* OTG Core Parameters */ /* diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c new file mode 100644 index 0000000..66a827a --- /dev/null +++ b/drivers/usb/dwc2/params.c @@ -0,0 +1,1125 @@ +/* + * Copyright (C) 2004-2016 Synopsys, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The names of the above-listed copyright holders may not be used + * to endorse or promote products derived from this software without + * specific prior written permission. + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of_device.h> + +#include "core.h" + +static const struct dwc2_core_params params_hi6220 = { + .otg_cap = 2, /* No HNP/SRP capable */ + .otg_ver = 0, /* 1.3 */ + .dma_enable = 1, + .dma_desc_enable = 0, + .dma_desc_fs_enable = 0, + .speed = 0, /* High Speed */ + .enable_dynamic_fifo = 1, + .en_multiple_tx_fifo = 1, + .host_rx_fifo_size = 512, + .host_nperio_tx_fifo_size = 512, + .host_perio_tx_fifo_size = 512, + .max_transfer_size = 65535, + .max_packet_count = 511, + .host_channels = 16, + .phy_type = 1, /* UTMI */ + .phy_utmi_width = 8, + .phy_ulpi_ddr = 0, /* Single */ + .phy_ulpi_ext_vbus = 0, + .i2c_enable = 0, + .ulpi_fs_ls = 0, + .host_support_fs_ls_low_power = 0, + .host_ls_low_power_phy_clk = 0, /* 48 MHz */ + .ts_dline = 0, + .reload_ctl = 0, + .ahbcfg = GAHBCFG_HBSTLEN_INCR16 << + GAHBCFG_HBSTLEN_SHIFT, + .uframe_sched = 0, + .external_id_pin_ctl = -1, + .hibernation = -1, +}; + +static const struct dwc2_core_params params_bcm2835 = { + .otg_cap = 0, /* HNP/SRP capable */ + .otg_ver = 0, /* 1.3 */ + .dma_enable = 1, + .dma_desc_enable = 0, + .dma_desc_fs_enable = 0, + .speed = 0, /* High Speed */ + .enable_dynamic_fifo = 1, + .en_multiple_tx_fifo = 1, + .host_rx_fifo_size = 774, /* 774 DWORDs */ + .host_nperio_tx_fifo_size = 256, /* 256 DWORDs */ + .host_perio_tx_fifo_size = 512, /* 512 DWORDs */ + .max_transfer_size = 65535, + .max_packet_count = 511, + .host_channels = 8, + .phy_type = 1, /* UTMI */ + .phy_utmi_width = 8, /* 8 bits */ + .phy_ulpi_ddr = 0, /* Single */ + .phy_ulpi_ext_vbus = 0, + .i2c_enable = 0, + .ulpi_fs_ls = 0, + .host_support_fs_ls_low_power = 0, + .host_ls_low_power_phy_clk = 0, /* 48 MHz */ + .ts_dline = 0, + .reload_ctl = 0, + .ahbcfg = 0x10, + .uframe_sched = 0, + .external_id_pin_ctl = -1, + .hibernation = -1, +}; + +static const struct dwc2_core_params params_rk3066 = { + .otg_cap = 2, /* non-HNP/non-SRP */ + .otg_ver = -1, + .dma_enable = -1, + .dma_desc_enable = 0, + .dma_desc_fs_enable = 0, + .speed = -1, + .enable_dynamic_fifo = 1, + .en_multiple_tx_fifo = -1, + .host_rx_fifo_size = 525, /* 525 DWORDs */ + .host_nperio_tx_fifo_size = 128, /* 128 DWORDs */ + .host_perio_tx_fifo_size = 256, /* 256 DWORDs */ + .max_transfer_size = -1, + .max_packet_count = -1, + .host_channels = -1, + .phy_type = -1, + .phy_utmi_width = -1, + .phy_ulpi_ddr = -1, + .phy_ulpi_ext_vbus = -1, + .i2c_enable = -1, + .ulpi_fs_ls = -1, + .host_support_fs_ls_low_power = -1, + .host_ls_low_power_phy_clk = -1, + .ts_dline = -1, + .reload_ctl = -1, + .ahbcfg = GAHBCFG_HBSTLEN_INCR16 << + GAHBCFG_HBSTLEN_SHIFT, + .uframe_sched = -1, + .external_id_pin_ctl = -1, + .hibernation = -1, +}; + +static const struct dwc2_core_params params_ltq = { + .otg_cap = 2, /* non-HNP/non-SRP */ + .otg_ver = -1, + .dma_enable = -1, + .dma_desc_enable = -1, + .dma_desc_fs_enable = -1, + .speed = -1, + .enable_dynamic_fifo = -1, + .en_multiple_tx_fifo = -1, + .host_rx_fifo_size = 288, /* 288 DWORDs */ + .host_nperio_tx_fifo_size = 128, /* 128 DWORDs */ + .host_perio_tx_fifo_size = 96, /* 96 DWORDs */ + .max_transfer_size = 65535, + .max_packet_count = 511, + .host_channels = -1, + .phy_type = -1, + .phy_utmi_width = -1, + .phy_ulpi_ddr = -1, + .phy_ulpi_ext_vbus = -1, + .i2c_enable = -1, + .ulpi_fs_ls = -1, + .host_support_fs_ls_low_power = -1, + .host_ls_low_power_phy_clk = -1, + .ts_dline = -1, + .reload_ctl = -1, + .ahbcfg = GAHBCFG_HBSTLEN_INCR16 << + GAHBCFG_HBSTLEN_SHIFT, + .uframe_sched = -1, + .external_id_pin_ctl = -1, + .hibernation = -1, +}; + +static const struct dwc2_core_params params_amlogic = { + .otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE, + .otg_ver = -1, + .dma_enable = 1, + .dma_desc_enable = 0, + .dma_desc_fs_enable = 0, + .speed = DWC2_SPEED_PARAM_HIGH, + .enable_dynamic_fifo = 1, + .en_multiple_tx_fifo = -1, + .host_rx_fifo_size = 512, + .host_nperio_tx_fifo_size = 500, + .host_perio_tx_fifo_size = 500, + .max_transfer_size = -1, + .max_packet_count = -1, + .host_channels = 16, + .phy_type = DWC2_PHY_TYPE_PARAM_UTMI, + .phy_utmi_width = -1, + .phy_ulpi_ddr = -1, + .phy_ulpi_ext_vbus = -1, + .i2c_enable = -1, + .ulpi_fs_ls = -1, + .host_support_fs_ls_low_power = -1, + .host_ls_low_power_phy_clk = -1, + .ts_dline = -1, + .reload_ctl = 1, + .ahbcfg = GAHBCFG_HBSTLEN_INCR8 << + GAHBCFG_HBSTLEN_SHIFT, + .uframe_sched = 0, + .external_id_pin_ctl = -1, + .hibernation = -1, +}; + +const struct of_device_id dwc2_of_match_table[] = { + { .compatible = "brcm,bcm2835-usb", .data = ¶ms_bcm2835 }, + { .compatible = "hisilicon,hi6220-usb", .data = ¶ms_hi6220 }, + { .compatible = "rockchip,rk3066-usb", .data = ¶ms_rk3066 }, + { .compatible = "lantiq,arx100-usb", .data = ¶ms_ltq }, + { .compatible = "lantiq,xrx200-usb", .data = ¶ms_ltq }, + { .compatible = "snps,dwc2", .data = NULL }, + { .compatible = "samsung,s3c6400-hsotg", .data = NULL}, + { .compatible = "amlogic,meson8b-usb", .data = ¶ms_amlogic }, + { .compatible = "amlogic,meson-gxbb-usb", .data = ¶ms_amlogic }, + {}, +}; +MODULE_DEVICE_TABLE(of, dwc2_of_match_table); + +#define DWC2_OUT_OF_BOUNDS(a, b, c) ((a) < (b) || (a) > (c)) + +/* Parameter access functions */ +void dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + switch (val) { + case DWC2_CAP_PARAM_HNP_SRP_CAPABLE: + if (hsotg->hw_params.op_mode != GHWCFG2_OP_MODE_HNP_SRP_CAPABLE) + valid = 0; + break; + case DWC2_CAP_PARAM_SRP_ONLY_CAPABLE: + switch (hsotg->hw_params.op_mode) { + case GHWCFG2_OP_MODE_HNP_SRP_CAPABLE: + case GHWCFG2_OP_MODE_SRP_ONLY_CAPABLE: + case GHWCFG2_OP_MODE_SRP_CAPABLE_DEVICE: + case GHWCFG2_OP_MODE_SRP_CAPABLE_HOST: + break; + default: + valid = 0; + break; + } + break; + case DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE: + /* always valid */ + break; + default: + valid = 0; + break; + } + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for otg_cap parameter. Check HW configuration.\n", + val); + switch (hsotg->hw_params.op_mode) { + case GHWCFG2_OP_MODE_HNP_SRP_CAPABLE: + val = DWC2_CAP_PARAM_HNP_SRP_CAPABLE; + break; + case GHWCFG2_OP_MODE_SRP_ONLY_CAPABLE: + case GHWCFG2_OP_MODE_SRP_CAPABLE_DEVICE: + case GHWCFG2_OP_MODE_SRP_CAPABLE_HOST: + val = DWC2_CAP_PARAM_SRP_ONLY_CAPABLE; + break; + default: + val = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE; + break; + } + dev_dbg(hsotg->dev, "Setting otg_cap to %d\n", val); + } + + hsotg->core_params->otg_cap = val; +} + +void dwc2_set_param_dma_enable(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val > 0 && hsotg->hw_params.arch == GHWCFG2_SLAVE_ONLY_ARCH) + valid = 0; + if (val < 0) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for dma_enable parameter. Check HW configuration.\n", + val); + val = hsotg->hw_params.arch != GHWCFG2_SLAVE_ONLY_ARCH; + dev_dbg(hsotg->dev, "Setting dma_enable to %d\n", val); + } + + hsotg->core_params->dma_enable = val; +} + +void dwc2_set_param_dma_desc_enable(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val > 0 && (hsotg->core_params->dma_enable <= 0 || + !hsotg->hw_params.dma_desc_enable)) + valid = 0; + if (val < 0) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for dma_desc_enable parameter. Check HW configuration.\n", + val); + val = (hsotg->core_params->dma_enable > 0 && + hsotg->hw_params.dma_desc_enable); + dev_dbg(hsotg->dev, "Setting dma_desc_enable to %d\n", val); + } + + hsotg->core_params->dma_desc_enable = val; +} + +void dwc2_set_param_dma_desc_fs_enable(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val > 0 && (hsotg->core_params->dma_enable <= 0 || + !hsotg->hw_params.dma_desc_enable)) + valid = 0; + if (val < 0) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for dma_desc_fs_enable parameter. Check HW configuration.\n", + val); + val = (hsotg->core_params->dma_enable > 0 && + hsotg->hw_params.dma_desc_enable); + } + + hsotg->core_params->dma_desc_fs_enable = val; + dev_dbg(hsotg->dev, "Setting dma_desc_fs_enable to %d\n", val); +} + +void dwc2_set_param_host_support_fs_ls_low_power(struct dwc2_hsotg *hsotg, + int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "Wrong value for host_support_fs_low_power\n"); + dev_err(hsotg->dev, + "host_support_fs_low_power must be 0 or 1\n"); + } + val = 0; + dev_dbg(hsotg->dev, + "Setting host_support_fs_low_power to %d\n", val); + } + + hsotg->core_params->host_support_fs_ls_low_power = val; +} + +void dwc2_set_param_enable_dynamic_fifo(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val > 0 && !hsotg->hw_params.enable_dynamic_fifo) + valid = 0; + if (val < 0) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for enable_dynamic_fifo parameter. Check HW configuration.\n", + val); + val = hsotg->hw_params.enable_dynamic_fifo; + dev_dbg(hsotg->dev, "Setting enable_dynamic_fifo to %d\n", val); + } + + hsotg->core_params->enable_dynamic_fifo = val; +} + +void dwc2_set_param_host_rx_fifo_size(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val < 16 || val > hsotg->hw_params.host_rx_fifo_size) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for host_rx_fifo_size. Check HW configuration.\n", + val); + val = hsotg->hw_params.host_rx_fifo_size; + dev_dbg(hsotg->dev, "Setting host_rx_fifo_size to %d\n", val); + } + + hsotg->core_params->host_rx_fifo_size = val; +} + +void dwc2_set_param_host_nperio_tx_fifo_size(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val < 16 || val > hsotg->hw_params.host_nperio_tx_fifo_size) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for host_nperio_tx_fifo_size. Check HW configuration.\n", + val); + val = hsotg->hw_params.host_nperio_tx_fifo_size; + dev_dbg(hsotg->dev, "Setting host_nperio_tx_fifo_size to %d\n", + val); + } + + hsotg->core_params->host_nperio_tx_fifo_size = val; +} + +void dwc2_set_param_host_perio_tx_fifo_size(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val < 16 || val > hsotg->hw_params.host_perio_tx_fifo_size) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for host_perio_tx_fifo_size. Check HW configuration.\n", + val); + val = hsotg->hw_params.host_perio_tx_fifo_size; + dev_dbg(hsotg->dev, "Setting host_perio_tx_fifo_size to %d\n", + val); + } + + hsotg->core_params->host_perio_tx_fifo_size = val; +} + +void dwc2_set_param_max_transfer_size(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val < 2047 || val > hsotg->hw_params.max_transfer_size) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for max_transfer_size. Check HW configuration.\n", + val); + val = hsotg->hw_params.max_transfer_size; + dev_dbg(hsotg->dev, "Setting max_transfer_size to %d\n", val); + } + + hsotg->core_params->max_transfer_size = val; +} + +void dwc2_set_param_max_packet_count(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val < 15 || val > hsotg->hw_params.max_packet_count) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for max_packet_count. Check HW configuration.\n", + val); + val = hsotg->hw_params.max_packet_count; + dev_dbg(hsotg->dev, "Setting max_packet_count to %d\n", val); + } + + hsotg->core_params->max_packet_count = val; +} + +void dwc2_set_param_host_channels(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (val < 1 || val > hsotg->hw_params.host_channels) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for host_channels. Check HW configuration.\n", + val); + val = hsotg->hw_params.host_channels; + dev_dbg(hsotg->dev, "Setting host_channels to %d\n", val); + } + + hsotg->core_params->host_channels = val; +} + +void dwc2_set_param_phy_type(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 0; + u32 hs_phy_type, fs_phy_type; + + if (DWC2_OUT_OF_BOUNDS(val, DWC2_PHY_TYPE_PARAM_FS, + DWC2_PHY_TYPE_PARAM_ULPI)) { + if (val >= 0) { + dev_err(hsotg->dev, "Wrong value for phy_type\n"); + dev_err(hsotg->dev, "phy_type must be 0, 1 or 2\n"); + } + + valid = 0; + } + + hs_phy_type = hsotg->hw_params.hs_phy_type; + fs_phy_type = hsotg->hw_params.fs_phy_type; + if (val == DWC2_PHY_TYPE_PARAM_UTMI && + (hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI || + hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI)) + valid = 1; + else if (val == DWC2_PHY_TYPE_PARAM_ULPI && + (hs_phy_type == GHWCFG2_HS_PHY_TYPE_ULPI || + hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI)) + valid = 1; + else if (val == DWC2_PHY_TYPE_PARAM_FS && + fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED) + valid = 1; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for phy_type. Check HW configuration.\n", + val); + val = DWC2_PHY_TYPE_PARAM_FS; + if (hs_phy_type != GHWCFG2_HS_PHY_TYPE_NOT_SUPPORTED) { + if (hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI || + hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI_ULPI) + val = DWC2_PHY_TYPE_PARAM_UTMI; + else + val = DWC2_PHY_TYPE_PARAM_ULPI; + } + dev_dbg(hsotg->dev, "Setting phy_type to %d\n", val); + } + + hsotg->core_params->phy_type = val; +} + +static int dwc2_get_param_phy_type(struct dwc2_hsotg *hsotg) +{ + return hsotg->core_params->phy_type; +} + +void dwc2_set_param_speed(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, "Wrong value for speed parameter\n"); + dev_err(hsotg->dev, "max_speed parameter must be 0 or 1\n"); + } + valid = 0; + } + + if (val == DWC2_SPEED_PARAM_HIGH && + dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for speed parameter. Check HW configuration.\n", + val); + val = dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS ? + DWC2_SPEED_PARAM_FULL : DWC2_SPEED_PARAM_HIGH; + dev_dbg(hsotg->dev, "Setting speed to %d\n", val); + } + + hsotg->core_params->speed = val; +} + +void dwc2_set_param_host_ls_low_power_phy_clk(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (DWC2_OUT_OF_BOUNDS(val, DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ, + DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ)) { + if (val >= 0) { + dev_err(hsotg->dev, + "Wrong value for host_ls_low_power_phy_clk parameter\n"); + dev_err(hsotg->dev, + "host_ls_low_power_phy_clk must be 0 or 1\n"); + } + valid = 0; + } + + if (val == DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ && + dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for host_ls_low_power_phy_clk. Check HW configuration.\n", + val); + val = dwc2_get_param_phy_type(hsotg) == DWC2_PHY_TYPE_PARAM_FS + ? DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_6MHZ + : DWC2_HOST_LS_LOW_POWER_PHY_CLK_PARAM_48MHZ; + dev_dbg(hsotg->dev, "Setting host_ls_low_power_phy_clk to %d\n", + val); + } + + hsotg->core_params->host_ls_low_power_phy_clk = val; +} + +void dwc2_set_param_phy_ulpi_ddr(struct dwc2_hsotg *hsotg, int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, "Wrong value for phy_ulpi_ddr\n"); + dev_err(hsotg->dev, "phy_upli_ddr must be 0 or 1\n"); + } + val = 0; + dev_dbg(hsotg->dev, "Setting phy_upli_ddr to %d\n", val); + } + + hsotg->core_params->phy_ulpi_ddr = val; +} + +void dwc2_set_param_phy_ulpi_ext_vbus(struct dwc2_hsotg *hsotg, int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "Wrong value for phy_ulpi_ext_vbus\n"); + dev_err(hsotg->dev, + "phy_ulpi_ext_vbus must be 0 or 1\n"); + } + val = 0; + dev_dbg(hsotg->dev, "Setting phy_ulpi_ext_vbus to %d\n", val); + } + + hsotg->core_params->phy_ulpi_ext_vbus = val; +} + +void dwc2_set_param_phy_utmi_width(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 0; + + switch (hsotg->hw_params.utmi_phy_data_width) { + case GHWCFG4_UTMI_PHY_DATA_WIDTH_8: + valid = (val == 8); + break; + case GHWCFG4_UTMI_PHY_DATA_WIDTH_16: + valid = (val == 16); + break; + case GHWCFG4_UTMI_PHY_DATA_WIDTH_8_OR_16: + valid = (val == 8 || val == 16); + break; + } + + if (!valid) { + if (val >= 0) { + dev_err(hsotg->dev, + "%d invalid for phy_utmi_width. Check HW configuration.\n", + val); + } + val = (hsotg->hw_params.utmi_phy_data_width == + GHWCFG4_UTMI_PHY_DATA_WIDTH_8) ? 8 : 16; + dev_dbg(hsotg->dev, "Setting phy_utmi_width to %d\n", val); + } + + hsotg->core_params->phy_utmi_width = val; +} + +void dwc2_set_param_ulpi_fs_ls(struct dwc2_hsotg *hsotg, int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, "Wrong value for ulpi_fs_ls\n"); + dev_err(hsotg->dev, "ulpi_fs_ls must be 0 or 1\n"); + } + val = 0; + dev_dbg(hsotg->dev, "Setting ulpi_fs_ls to %d\n", val); + } + + hsotg->core_params->ulpi_fs_ls = val; +} + +void dwc2_set_param_ts_dline(struct dwc2_hsotg *hsotg, int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, "Wrong value for ts_dline\n"); + dev_err(hsotg->dev, "ts_dline must be 0 or 1\n"); + } + val = 0; + dev_dbg(hsotg->dev, "Setting ts_dline to %d\n", val); + } + + hsotg->core_params->ts_dline = val; +} + +void dwc2_set_param_i2c_enable(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, "Wrong value for i2c_enable\n"); + dev_err(hsotg->dev, "i2c_enable must be 0 or 1\n"); + } + + valid = 0; + } + + if (val == 1 && !(hsotg->hw_params.i2c_enable)) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for i2c_enable. Check HW configuration.\n", + val); + val = hsotg->hw_params.i2c_enable; + dev_dbg(hsotg->dev, "Setting i2c_enable to %d\n", val); + } + + hsotg->core_params->i2c_enable = val; +} + +void dwc2_set_param_en_multiple_tx_fifo(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "Wrong value for en_multiple_tx_fifo,\n"); + dev_err(hsotg->dev, + "en_multiple_tx_fifo must be 0 or 1\n"); + } + valid = 0; + } + + if (val == 1 && !hsotg->hw_params.en_multiple_tx_fifo) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for parameter en_multiple_tx_fifo. Check HW configuration.\n", + val); + val = hsotg->hw_params.en_multiple_tx_fifo; + dev_dbg(hsotg->dev, "Setting en_multiple_tx_fifo to %d\n", val); + } + + hsotg->core_params->en_multiple_tx_fifo = val; +} + +void dwc2_set_param_reload_ctl(struct dwc2_hsotg *hsotg, int val) +{ + int valid = 1; + + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "'%d' invalid for parameter reload_ctl\n", val); + dev_err(hsotg->dev, "reload_ctl must be 0 or 1\n"); + } + valid = 0; + } + + if (val == 1 && hsotg->hw_params.snpsid < DWC2_CORE_REV_2_92a) + valid = 0; + + if (!valid) { + if (val >= 0) + dev_err(hsotg->dev, + "%d invalid for parameter reload_ctl. Check HW configuration.\n", + val); + val = hsotg->hw_params.snpsid >= DWC2_CORE_REV_2_92a; + dev_dbg(hsotg->dev, "Setting reload_ctl to %d\n", val); + } + + hsotg->core_params->reload_ctl = val; +} + +void dwc2_set_param_ahbcfg(struct dwc2_hsotg *hsotg, int val) +{ + if (val != -1) + hsotg->core_params->ahbcfg = val; + else + hsotg->core_params->ahbcfg = GAHBCFG_HBSTLEN_INCR4 << + GAHBCFG_HBSTLEN_SHIFT; +} + +void dwc2_set_param_otg_ver(struct dwc2_hsotg *hsotg, int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "'%d' invalid for parameter otg_ver\n", val); + dev_err(hsotg->dev, + "otg_ver must be 0 (for OTG 1.3 support) or 1 (for OTG 2.0 support)\n"); + } + val = 0; + dev_dbg(hsotg->dev, "Setting otg_ver to %d\n", val); + } + + hsotg->core_params->otg_ver = val; +} + +static void dwc2_set_param_uframe_sched(struct dwc2_hsotg *hsotg, int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "'%d' invalid for parameter uframe_sched\n", + val); + dev_err(hsotg->dev, "uframe_sched must be 0 or 1\n"); + } + val = 1; + dev_dbg(hsotg->dev, "Setting uframe_sched to %d\n", val); + } + + hsotg->core_params->uframe_sched = val; +} + +static void dwc2_set_param_external_id_pin_ctl(struct dwc2_hsotg *hsotg, + int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "'%d' invalid for parameter external_id_pin_ctl\n", + val); + dev_err(hsotg->dev, "external_id_pin_ctl must be 0 or 1\n"); + } + val = 0; + dev_dbg(hsotg->dev, "Setting external_id_pin_ctl to %d\n", val); + } + + hsotg->core_params->external_id_pin_ctl = val; +} + +static void dwc2_set_param_hibernation(struct dwc2_hsotg *hsotg, + int val) +{ + if (DWC2_OUT_OF_BOUNDS(val, 0, 1)) { + if (val >= 0) { + dev_err(hsotg->dev, + "'%d' invalid for parameter hibernation\n", + val); + dev_err(hsotg->dev, "hibernation must be 0 or 1\n"); + } + val = 0; + dev_dbg(hsotg->dev, "Setting hibernation to %d\n", val); + } + + hsotg->core_params->hibernation = val; +} + +/* + * This function is called during module intialization to pass module parameters + * for the DWC_otg core. + */ +void dwc2_set_parameters(struct dwc2_hsotg *hsotg, + const struct dwc2_core_params *params) +{ + dev_dbg(hsotg->dev, "%s()\n", __func__); + + dwc2_set_param_otg_cap(hsotg, params->otg_cap); + dwc2_set_param_dma_enable(hsotg, params->dma_enable); + dwc2_set_param_dma_desc_enable(hsotg, params->dma_desc_enable); + dwc2_set_param_dma_desc_fs_enable(hsotg, params->dma_desc_fs_enable); + dwc2_set_param_host_support_fs_ls_low_power(hsotg, + params->host_support_fs_ls_low_power); + dwc2_set_param_enable_dynamic_fifo(hsotg, + params->enable_dynamic_fifo); + dwc2_set_param_host_rx_fifo_size(hsotg, + params->host_rx_fifo_size); + dwc2_set_param_host_nperio_tx_fifo_size(hsotg, + params->host_nperio_tx_fifo_size); + dwc2_set_param_host_perio_tx_fifo_size(hsotg, + params->host_perio_tx_fifo_size); + dwc2_set_param_max_transfer_size(hsotg, + params->max_transfer_size); + dwc2_set_param_max_packet_count(hsotg, + params->max_packet_count); + dwc2_set_param_host_channels(hsotg, params->host_channels); + dwc2_set_param_phy_type(hsotg, params->phy_type); + dwc2_set_param_speed(hsotg, params->speed); + dwc2_set_param_host_ls_low_power_phy_clk(hsotg, + params->host_ls_low_power_phy_clk); + dwc2_set_param_phy_ulpi_ddr(hsotg, params->phy_ulpi_ddr); + dwc2_set_param_phy_ulpi_ext_vbus(hsotg, + params->phy_ulpi_ext_vbus); + dwc2_set_param_phy_utmi_width(hsotg, params->phy_utmi_width); + dwc2_set_param_ulpi_fs_ls(hsotg, params->ulpi_fs_ls); + dwc2_set_param_ts_dline(hsotg, params->ts_dline); + dwc2_set_param_i2c_enable(hsotg, params->i2c_enable); + dwc2_set_param_en_multiple_tx_fifo(hsotg, + params->en_multiple_tx_fifo); + dwc2_set_param_reload_ctl(hsotg, params->reload_ctl); + dwc2_set_param_ahbcfg(hsotg, params->ahbcfg); + dwc2_set_param_otg_ver(hsotg, params->otg_ver); + dwc2_set_param_uframe_sched(hsotg, params->uframe_sched); + dwc2_set_param_external_id_pin_ctl(hsotg, params->external_id_pin_ctl); + dwc2_set_param_hibernation(hsotg, params->hibernation); +} + +/* + * Gets host hardware parameters. Forces host mode if not currently in + * host mode. Should be called immediately after a core soft reset in + * order to get the reset values. + */ +static void dwc2_get_host_hwparams(struct dwc2_hsotg *hsotg) +{ + struct dwc2_hw_params *hw = &hsotg->hw_params; + u32 gnptxfsiz; + u32 hptxfsiz; + bool forced; + + if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) + return; + + forced = dwc2_force_mode_if_needed(hsotg, true); + + gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ); + hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ); + dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz); + dev_dbg(hsotg->dev, "hptxfsiz=%08x\n", hptxfsiz); + + if (forced) + dwc2_clear_force_mode(hsotg); + + hw->host_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >> + FIFOSIZE_DEPTH_SHIFT; + hw->host_perio_tx_fifo_size = (hptxfsiz & FIFOSIZE_DEPTH_MASK) >> + FIFOSIZE_DEPTH_SHIFT; +} + +/* + * Gets device hardware parameters. Forces device mode if not + * currently in device mode. Should be called immediately after a core + * soft reset in order to get the reset values. + */ +static void dwc2_get_dev_hwparams(struct dwc2_hsotg *hsotg) +{ + struct dwc2_hw_params *hw = &hsotg->hw_params; + bool forced; + u32 gnptxfsiz; + + if (hsotg->dr_mode == USB_DR_MODE_HOST) + return; + + forced = dwc2_force_mode_if_needed(hsotg, false); + + gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ); + dev_dbg(hsotg->dev, "gnptxfsiz=%08x\n", gnptxfsiz); + + if (forced) + dwc2_clear_force_mode(hsotg); + + hw->dev_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >> + FIFOSIZE_DEPTH_SHIFT; +} + +/** + * During device initialization, read various hardware configuration + * registers and interpret the contents. + */ +int dwc2_get_hwparams(struct dwc2_hsotg *hsotg) +{ + struct dwc2_hw_params *hw = &hsotg->hw_params; + unsigned int width; + u32 hwcfg1, hwcfg2, hwcfg3, hwcfg4; + u32 grxfsiz; + + /* + * Attempt to ensure this device is really a DWC_otg Controller. + * Read and verify the GSNPSID register contents. The value should be + * 0x45f42xxx or 0x45f43xxx, which corresponds to either "OT2" or "OT3", + * as in "OTG version 2.xx" or "OTG version 3.xx". + */ + hw->snpsid = dwc2_readl(hsotg->regs + GSNPSID); + if ((hw->snpsid & 0xfffff000) != 0x4f542000 && + (hw->snpsid & 0xfffff000) != 0x4f543000) { + dev_err(hsotg->dev, "Bad value for GSNPSID: 0x%08x\n", + hw->snpsid); + return -ENODEV; + } + + dev_dbg(hsotg->dev, "Core Release: %1x.%1x%1x%1x (snpsid=%x)\n", + hw->snpsid >> 12 & 0xf, hw->snpsid >> 8 & 0xf, + hw->snpsid >> 4 & 0xf, hw->snpsid & 0xf, hw->snpsid); + + hwcfg1 = dwc2_readl(hsotg->regs + GHWCFG1); + hwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2); + hwcfg3 = dwc2_readl(hsotg->regs + GHWCFG3); + hwcfg4 = dwc2_readl(hsotg->regs + GHWCFG4); + grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ); + + dev_dbg(hsotg->dev, "hwcfg1=%08x\n", hwcfg1); + dev_dbg(hsotg->dev, "hwcfg2=%08x\n", hwcfg2); + dev_dbg(hsotg->dev, "hwcfg3=%08x\n", hwcfg3); + dev_dbg(hsotg->dev, "hwcfg4=%08x\n", hwcfg4); + dev_dbg(hsotg->dev, "grxfsiz=%08x\n", grxfsiz); + + /* + * Host specific hardware parameters. Reading these parameters + * requires the controller to be in host mode. The mode will + * be forced, if necessary, to read these values. + */ + dwc2_get_host_hwparams(hsotg); + dwc2_get_dev_hwparams(hsotg); + + /* hwcfg1 */ + hw->dev_ep_dirs = hwcfg1; + + /* hwcfg2 */ + hw->op_mode = (hwcfg2 & GHWCFG2_OP_MODE_MASK) >> + GHWCFG2_OP_MODE_SHIFT; + hw->arch = (hwcfg2 & GHWCFG2_ARCHITECTURE_MASK) >> + GHWCFG2_ARCHITECTURE_SHIFT; + hw->enable_dynamic_fifo = !!(hwcfg2 & GHWCFG2_DYNAMIC_FIFO); + hw->host_channels = 1 + ((hwcfg2 & GHWCFG2_NUM_HOST_CHAN_MASK) >> + GHWCFG2_NUM_HOST_CHAN_SHIFT); + hw->hs_phy_type = (hwcfg2 & GHWCFG2_HS_PHY_TYPE_MASK) >> + GHWCFG2_HS_PHY_TYPE_SHIFT; + hw->fs_phy_type = (hwcfg2 & GHWCFG2_FS_PHY_TYPE_MASK) >> + GHWCFG2_FS_PHY_TYPE_SHIFT; + hw->num_dev_ep = (hwcfg2 & GHWCFG2_NUM_DEV_EP_MASK) >> + GHWCFG2_NUM_DEV_EP_SHIFT; + hw->nperio_tx_q_depth = + (hwcfg2 & GHWCFG2_NONPERIO_TX_Q_DEPTH_MASK) >> + GHWCFG2_NONPERIO_TX_Q_DEPTH_SHIFT << 1; + hw->host_perio_tx_q_depth = + (hwcfg2 & GHWCFG2_HOST_PERIO_TX_Q_DEPTH_MASK) >> + GHWCFG2_HOST_PERIO_TX_Q_DEPTH_SHIFT << 1; + hw->dev_token_q_depth = + (hwcfg2 & GHWCFG2_DEV_TOKEN_Q_DEPTH_MASK) >> + GHWCFG2_DEV_TOKEN_Q_DEPTH_SHIFT; + + /* hwcfg3 */ + width = (hwcfg3 & GHWCFG3_XFER_SIZE_CNTR_WIDTH_MASK) >> + GHWCFG3_XFER_SIZE_CNTR_WIDTH_SHIFT; + hw->max_transfer_size = (1 << (width + 11)) - 1; + width = (hwcfg3 & GHWCFG3_PACKET_SIZE_CNTR_WIDTH_MASK) >> + GHWCFG3_PACKET_SIZE_CNTR_WIDTH_SHIFT; + hw->max_packet_count = (1 << (width + 4)) - 1; + hw->i2c_enable = !!(hwcfg3 & GHWCFG3_I2C); + hw->total_fifo_size = (hwcfg3 & GHWCFG3_DFIFO_DEPTH_MASK) >> + GHWCFG3_DFIFO_DEPTH_SHIFT; + + /* hwcfg4 */ + hw->en_multiple_tx_fifo = !!(hwcfg4 & GHWCFG4_DED_FIFO_EN); + hw->num_dev_perio_in_ep = (hwcfg4 & GHWCFG4_NUM_DEV_PERIO_IN_EP_MASK) >> + GHWCFG4_NUM_DEV_PERIO_IN_EP_SHIFT; + hw->dma_desc_enable = !!(hwcfg4 & GHWCFG4_DESC_DMA); + hw->power_optimized = !!(hwcfg4 & GHWCFG4_POWER_OPTIMIZ); + hw->utmi_phy_data_width = (hwcfg4 & GHWCFG4_UTMI_PHY_DATA_WIDTH_MASK) >> + GHWCFG4_UTMI_PHY_DATA_WIDTH_SHIFT; + + /* fifo sizes */ + hw->host_rx_fifo_size = (grxfsiz & GRXFSIZ_DEPTH_MASK) >> + GRXFSIZ_DEPTH_SHIFT; + + dev_dbg(hsotg->dev, "Detected values from hardware:\n"); + dev_dbg(hsotg->dev, " op_mode=%d\n", + hw->op_mode); + dev_dbg(hsotg->dev, " arch=%d\n", + hw->arch); + dev_dbg(hsotg->dev, " dma_desc_enable=%d\n", + hw->dma_desc_enable); + dev_dbg(hsotg->dev, " power_optimized=%d\n", + hw->power_optimized); + dev_dbg(hsotg->dev, " i2c_enable=%d\n", + hw->i2c_enable); + dev_dbg(hsotg->dev, " hs_phy_type=%d\n", + hw->hs_phy_type); + dev_dbg(hsotg->dev, " fs_phy_type=%d\n", + hw->fs_phy_type); + dev_dbg(hsotg->dev, " utmi_phy_data_width=%d\n", + hw->utmi_phy_data_width); + dev_dbg(hsotg->dev, " num_dev_ep=%d\n", + hw->num_dev_ep); + dev_dbg(hsotg->dev, " num_dev_perio_in_ep=%d\n", + hw->num_dev_perio_in_ep); + dev_dbg(hsotg->dev, " host_channels=%d\n", + hw->host_channels); + dev_dbg(hsotg->dev, " max_transfer_size=%d\n", + hw->max_transfer_size); + dev_dbg(hsotg->dev, " max_packet_count=%d\n", + hw->max_packet_count); + dev_dbg(hsotg->dev, " nperio_tx_q_depth=0x%0x\n", + hw->nperio_tx_q_depth); + dev_dbg(hsotg->dev, " host_perio_tx_q_depth=0x%0x\n", + hw->host_perio_tx_q_depth); + dev_dbg(hsotg->dev, " dev_token_q_depth=0x%0x\n", + hw->dev_token_q_depth); + dev_dbg(hsotg->dev, " enable_dynamic_fifo=%d\n", + hw->enable_dynamic_fifo); + dev_dbg(hsotg->dev, " en_multiple_tx_fifo=%d\n", + hw->en_multiple_tx_fifo); + dev_dbg(hsotg->dev, " total_fifo_size=%d\n", + hw->total_fifo_size); + dev_dbg(hsotg->dev, " host_rx_fifo_size=%d\n", + hw->host_rx_fifo_size); + dev_dbg(hsotg->dev, " host_nperio_tx_fifo_size=%d\n", + hw->host_nperio_tx_fifo_size); + dev_dbg(hsotg->dev, " host_perio_tx_fifo_size=%d\n", + hw->host_perio_tx_fifo_size); + dev_dbg(hsotg->dev, "\n"); + + return 0; +} + +/* + * Sets all parameters to the given value. + * + * Assumes that the dwc2_core_params struct contains only integers. + */ +void dwc2_set_all_params(struct dwc2_core_params *params, int value) +{ + int *p = (int *)params; + size_t size = sizeof(*params) / sizeof(*p); + int i; + + for (i = 0; i < size; i++) + p[i] = value; +} diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 8e1728b..c4b855b 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -55,165 +55,6 @@ static const char dwc2_driver_name[] = "dwc2"; -static const struct dwc2_core_params params_hi6220 = { - .otg_cap = 2, /* No HNP/SRP capable */ - .otg_ver = 0, /* 1.3 */ - .dma_enable = 1, - .dma_desc_enable = 0, - .dma_desc_fs_enable = 0, - .speed = 0, /* High Speed */ - .enable_dynamic_fifo = 1, - .en_multiple_tx_fifo = 1, - .host_rx_fifo_size = 512, - .host_nperio_tx_fifo_size = 512, - .host_perio_tx_fifo_size = 512, - .max_transfer_size = 65535, - .max_packet_count = 511, - .host_channels = 16, - .phy_type = 1, /* UTMI */ - .phy_utmi_width = 8, - .phy_ulpi_ddr = 0, /* Single */ - .phy_ulpi_ext_vbus = 0, - .i2c_enable = 0, - .ulpi_fs_ls = 0, - .host_support_fs_ls_low_power = 0, - .host_ls_low_power_phy_clk = 0, /* 48 MHz */ - .ts_dline = 0, - .reload_ctl = 0, - .ahbcfg = GAHBCFG_HBSTLEN_INCR16 << - GAHBCFG_HBSTLEN_SHIFT, - .uframe_sched = 0, - .external_id_pin_ctl = -1, - .hibernation = -1, -}; - -static const struct dwc2_core_params params_bcm2835 = { - .otg_cap = 0, /* HNP/SRP capable */ - .otg_ver = 0, /* 1.3 */ - .dma_enable = 1, - .dma_desc_enable = 0, - .dma_desc_fs_enable = 0, - .speed = 0, /* High Speed */ - .enable_dynamic_fifo = 1, - .en_multiple_tx_fifo = 1, - .host_rx_fifo_size = 774, /* 774 DWORDs */ - .host_nperio_tx_fifo_size = 256, /* 256 DWORDs */ - .host_perio_tx_fifo_size = 512, /* 512 DWORDs */ - .max_transfer_size = 65535, - .max_packet_count = 511, - .host_channels = 8, - .phy_type = 1, /* UTMI */ - .phy_utmi_width = 8, /* 8 bits */ - .phy_ulpi_ddr = 0, /* Single */ - .phy_ulpi_ext_vbus = 0, - .i2c_enable = 0, - .ulpi_fs_ls = 0, - .host_support_fs_ls_low_power = 0, - .host_ls_low_power_phy_clk = 0, /* 48 MHz */ - .ts_dline = 0, - .reload_ctl = 0, - .ahbcfg = 0x10, - .uframe_sched = 0, - .external_id_pin_ctl = -1, - .hibernation = -1, -}; - -static const struct dwc2_core_params params_rk3066 = { - .otg_cap = 2, /* non-HNP/non-SRP */ - .otg_ver = -1, - .dma_enable = -1, - .dma_desc_enable = 0, - .dma_desc_fs_enable = 0, - .speed = -1, - .enable_dynamic_fifo = 1, - .en_multiple_tx_fifo = -1, - .host_rx_fifo_size = 525, /* 525 DWORDs */ - .host_nperio_tx_fifo_size = 128, /* 128 DWORDs */ - .host_perio_tx_fifo_size = 256, /* 256 DWORDs */ - .max_transfer_size = -1, - .max_packet_count = -1, - .host_channels = -1, - .phy_type = -1, - .phy_utmi_width = -1, - .phy_ulpi_ddr = -1, - .phy_ulpi_ext_vbus = -1, - .i2c_enable = -1, - .ulpi_fs_ls = -1, - .host_support_fs_ls_low_power = -1, - .host_ls_low_power_phy_clk = -1, - .ts_dline = -1, - .reload_ctl = -1, - .ahbcfg = GAHBCFG_HBSTLEN_INCR16 << - GAHBCFG_HBSTLEN_SHIFT, - .uframe_sched = -1, - .external_id_pin_ctl = -1, - .hibernation = -1, -}; - -static const struct dwc2_core_params params_ltq = { - .otg_cap = 2, /* non-HNP/non-SRP */ - .otg_ver = -1, - .dma_enable = -1, - .dma_desc_enable = -1, - .dma_desc_fs_enable = -1, - .speed = -1, - .enable_dynamic_fifo = -1, - .en_multiple_tx_fifo = -1, - .host_rx_fifo_size = 288, /* 288 DWORDs */ - .host_nperio_tx_fifo_size = 128, /* 128 DWORDs */ - .host_perio_tx_fifo_size = 96, /* 96 DWORDs */ - .max_transfer_size = 65535, - .max_packet_count = 511, - .host_channels = -1, - .phy_type = -1, - .phy_utmi_width = -1, - .phy_ulpi_ddr = -1, - .phy_ulpi_ext_vbus = -1, - .i2c_enable = -1, - .ulpi_fs_ls = -1, - .host_support_fs_ls_low_power = -1, - .host_ls_low_power_phy_clk = -1, - .ts_dline = -1, - .reload_ctl = -1, - .ahbcfg = GAHBCFG_HBSTLEN_INCR16 << - GAHBCFG_HBSTLEN_SHIFT, - .uframe_sched = -1, - .external_id_pin_ctl = -1, - .hibernation = -1, -}; - -static const struct dwc2_core_params params_amlogic = { - .otg_cap = DWC2_CAP_PARAM_NO_HNP_SRP_CAPABLE, - .otg_ver = -1, - .dma_enable = 1, - .dma_desc_enable = 0, - .dma_desc_fs_enable = 0, - .speed = DWC2_SPEED_PARAM_HIGH, - .enable_dynamic_fifo = 1, - .en_multiple_tx_fifo = -1, - .host_rx_fifo_size = 512, - .host_nperio_tx_fifo_size = 500, - .host_perio_tx_fifo_size = 500, - .max_transfer_size = -1, - .max_packet_count = -1, - .host_channels = 16, - .phy_type = DWC2_PHY_TYPE_PARAM_UTMI, - .phy_utmi_width = -1, - .phy_ulpi_ddr = -1, - .phy_ulpi_ext_vbus = -1, - .i2c_enable = -1, - .ulpi_fs_ls = -1, - .host_support_fs_ls_low_power = -1, - .host_ls_low_power_phy_clk = -1, - .ts_dline = -1, - .reload_ctl = 1, - .ahbcfg = GAHBCFG_HBSTLEN_INCR8 << - GAHBCFG_HBSTLEN_SHIFT, - .uframe_sched = 0, - .external_id_pin_ctl = -1, - .hibernation = -1, -}; - /* * Check the dr_mode against the module configuration and hardware * capabilities. @@ -510,20 +351,6 @@ static void dwc2_driver_shutdown(struct platform_device *dev) disable_irq(hsotg->irq); } -static const struct of_device_id dwc2_of_match_table[] = { - { .compatible = "brcm,bcm2835-usb", .data = ¶ms_bcm2835 }, - { .compatible = "hisilicon,hi6220-usb", .data = ¶ms_hi6220 }, - { .compatible = "rockchip,rk3066-usb", .data = ¶ms_rk3066 }, - { .compatible = "lantiq,arx100-usb", .data = ¶ms_ltq }, - { .compatible = "lantiq,xrx200-usb", .data = ¶ms_ltq }, - { .compatible = "snps,dwc2", .data = NULL }, - { .compatible = "samsung,s3c6400-hsotg", .data = NULL}, - { .compatible = "amlogic,meson8b-usb", .data = ¶ms_amlogic }, - { .compatible = "amlogic,meson-gxbb-usb", .data = ¶ms_amlogic }, - {}, -}; -MODULE_DEVICE_TABLE(of, dwc2_of_match_table); - /** * dwc2_driver_probe() - Called when the DWC_otg core is bound to the DWC_otg * driver -- 2.10.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html