[U-Boot] [PATCH 1/6] ARM: rmobile: dts: Add EHCI USB nodes to r8a7796
The R8A7796 EHCI USB nodes are missing from r8a7796 dtsi, add them. These nodes don't come from mainline Linux, yet the DT binding is similar enough to R8A7795 which already has those in mainline and once the nodes hit mainline, this DT should be resynched.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- arch/arm/dts/r8a7796.dtsi | 51 ++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 46 insertions(+), 5 deletions(-)
diff --git a/arch/arm/dts/r8a7796.dtsi b/arch/arm/dts/r8a7796.dtsi index c0cb4a952f..7e3b1d82a1 100644 --- a/arch/arm/dts/r8a7796.dtsi +++ b/arch/arm/dts/r8a7796.dtsi @@ -1106,7 +1106,17 @@ };
hsusb: usb@e6590000 { - /* placeholder */ + compatible = "renesas,usbhs-r8a7796", + "renesas,rcar-gen3-usbhs"; + reg = <0 0xe6590000 0 0x100>; + interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 704>; + renesas,buswait = <11>; + phys = <&usb2_phy0>; + phy-names = "usb"; + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>; + resets = <&cpg 704>; + status = "disabled"; };
xhci0: usb@ee000000 { @@ -1118,11 +1128,27 @@ };
ehci0: usb@ee080100 { - /* placeholder */ + compatible = "generic-ehci"; + reg = <0 0xee080100 0 0x100>; + interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 703>; + phys = <&usb2_phy0>; + phy-names = "usb"; + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>; + resets = <&cpg 703>; + status = "disabled"; };
usb2_phy0: usb-phy@ee080200 { - /* placeholder */ + compatible = "renesas,usb2-phy-r8a7796", + "renesas,rcar-gen3-usb2-phy"; + reg = <0 0xee080200 0 0x700>; + interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 703>; + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>; + resets = <&cpg 703>; + #phy-cells = <0>; + status = "disabled"; };
ohci1: usb@ee0a0000 { @@ -1130,11 +1156,26 @@ };
ehci1: usb@ee0a0100 { - /* placeholder */ + compatible = "generic-ehci"; + reg = <0 0xee0a0100 0 0x100>; + interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 702>; + phys = <&usb2_phy1>; + phy-names = "usb"; + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>; + resets = <&cpg 702>; + status = "disabled"; };
usb2_phy1: usb-phy@ee0a0200 { - /* placeholder */ + compatible = "renesas,usb2-phy-r8a7796", + "renesas,rcar-gen3-usb2-phy"; + reg = <0 0xee0a0200 0 0x700>; + clocks = <&cpg CPG_MOD 702>; + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>; + resets = <&cpg 702>; + #phy-cells = <0>; + status = "disabled"; };
sdhi0: sd@ee100000 {
In order to use ehci-generic driver, move the configuration of HSUSB block into the board file. This configuration should not have been in the Gen3 EHCI USB driver in the first place, so move it to the board file until there is a proper infrastructure and driver for the HSUSB block.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- board/renesas/salvator-x/salvator-x.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/board/renesas/salvator-x/salvator-x.c b/board/renesas/salvator-x/salvator-x.c index e260117802..37fcbbd448 100644 --- a/board/renesas/salvator-x/salvator-x.c +++ b/board/renesas/salvator-x/salvator-x.c @@ -55,6 +55,7 @@ void s_init(void) #define SD1_MSTP313 BIT(13) #define SD2_MSTP312 BIT(12) /* either MMC0 */ #define SD3_MSTP311 BIT(11) /* either MMC1 */ +#define HSUSB_MSTP704 BIT(4) /* HSUSB */
#define SD0CKCR 0xE6150074 #define SD1CKCR 0xE6150078 @@ -92,6 +93,13 @@ int board_early_init_f(void) /* -/W 32 Power resume control register 2 (3DG) */ #define SYSC_PWRONCR2 0xE618010C
+/* HSUSB block registers */ +#define HSUSB_REG_LPSTS 0xE6590102 +#define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14) +#define HSUSB_REG_UGCTRL2 0xE6590184 +#define HSUSB_REG_UGCTRL2_USB0SEL 0x30 +#define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10 + int board_init(void) { /* adress of boot parameters */ @@ -116,6 +124,14 @@ int board_init(void) /* USB1 pull-up */ setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
+ /* Configure the HSUSB block */ + mstp_clrbits_le32(MSTPSR7, SMSTPCR7, HSUSB_MSTP704); + /* Choice USB0SEL */ + clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL, + HSUSB_REG_UGCTRL2_USB0SEL_EHCI); + /* low power status */ + setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL); + #ifdef CONFIG_RENESAS_RAVB /* EtherAVB Enable */ /* GPSR2 */
In order to use ehci-generic driver, move the configuration of HSUSB block into the board file. This configuration should not have been in the Gen3 EHCI USB driver in the first place, so move it to the board file until there is a proper infrastructure and driver for the HSUSB block.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- board/renesas/ulcb/ulcb.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/board/renesas/ulcb/ulcb.c b/board/renesas/ulcb/ulcb.c index dc23228f4f..578b14be7b 100644 --- a/board/renesas/ulcb/ulcb.c +++ b/board/renesas/ulcb/ulcb.c @@ -53,6 +53,7 @@ void s_init(void) #define SD0_MSTP314 BIT(14) #define SD1_MSTP313 BIT(13) #define SD2_MSTP312 BIT(12) /* either MMC0 */ +#define HSUSB_MSTP704 BIT(4) /* HSUSB */
#define SD0CKCR 0xE6150074 #define SD1CKCR 0xE6150078 @@ -90,6 +91,13 @@ int board_early_init_f(void) /* -/W 32 Power resume control register 2 (3DG) */ #define SYSC_PWRONCR2 0xE618010C
+/* HSUSB block registers */ +#define HSUSB_REG_LPSTS 0xE6590102 +#define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14) +#define HSUSB_REG_UGCTRL2 0xE6590184 +#define HSUSB_REG_UGCTRL2_USB0SEL 0x30 +#define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10 + int board_init(void) { /* adress of boot parameters */ @@ -105,6 +113,14 @@ int board_init(void) /* USB1 pull-up */ setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
+ /* Configure the HSUSB block */ + mstp_clrbits_le32(MSTPSR7, SMSTPCR7, HSUSB_MSTP704); + /* Choice USB0SEL */ + clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL, + HSUSB_REG_UGCTRL2_USB0SEL_EHCI); + /* low power status */ + setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL); + #ifdef CONFIG_RENESAS_RAVB /* EtherAVB Enable */ /* GPSR2 */
Enable the EHCI generic driver, which is superior to ad-hoc SoC specific one.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- configs/r8a7795_salvator-x_defconfig | 1 + configs/r8a7796_salvator-x_defconfig | 1 + 2 files changed, 2 insertions(+)
diff --git a/configs/r8a7795_salvator-x_defconfig b/configs/r8a7795_salvator-x_defconfig index 271b15da42..585eb64973 100644 --- a/configs/r8a7795_salvator-x_defconfig +++ b/configs/r8a7795_salvator-x_defconfig @@ -34,5 +34,6 @@ CONFIG_SCIF_CONSOLE=y CONFIG_USB=y CONFIG_DM_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_STORAGE=y CONFIG_SMBIOS_MANUFACTURER="" diff --git a/configs/r8a7796_salvator-x_defconfig b/configs/r8a7796_salvator-x_defconfig index 921fdf77ff..302e8999a6 100644 --- a/configs/r8a7796_salvator-x_defconfig +++ b/configs/r8a7796_salvator-x_defconfig @@ -35,5 +35,6 @@ CONFIG_SCIF_CONSOLE=y CONFIG_USB=y CONFIG_DM_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_STORAGE=y CONFIG_SMBIOS_MANUFACTURER=""
Enable the EHCI generic driver, which is superior to ad-hoc SoC specific one.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- configs/r8a7795_ulcb_defconfig | 1 + configs/r8a7796_ulcb_defconfig | 1 + 2 files changed, 2 insertions(+)
diff --git a/configs/r8a7795_ulcb_defconfig b/configs/r8a7795_ulcb_defconfig index 832998083a..6f30c8d870 100644 --- a/configs/r8a7795_ulcb_defconfig +++ b/configs/r8a7795_ulcb_defconfig @@ -30,5 +30,6 @@ CONFIG_SCIF_CONSOLE=y CONFIG_USB=y CONFIG_DM_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_STORAGE=y CONFIG_SMBIOS_MANUFACTURER="" diff --git a/configs/r8a7796_ulcb_defconfig b/configs/r8a7796_ulcb_defconfig index 5846147348..2ff91dfbf3 100644 --- a/configs/r8a7796_ulcb_defconfig +++ b/configs/r8a7796_ulcb_defconfig @@ -31,5 +31,6 @@ CONFIG_SCIF_CONSOLE=y CONFIG_USB=y CONFIG_DM_USB=y CONFIG_USB_EHCI_HCD=y +CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_STORAGE=y CONFIG_SMBIOS_MANUFACTURER=""
Since we use EHCI generic driver on RCar Gen3 , this driver is useless. Remove it.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- drivers/usb/host/Kconfig | 8 --- drivers/usb/host/Makefile | 1 - drivers/usb/host/ehci-rcar_gen3.c | 106 -------------------------------------- 3 files changed, 115 deletions(-) delete mode 100644 drivers/usb/host/ehci-rcar_gen3.c
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index f797a2568c..f5f19ed775 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -157,14 +157,6 @@ config USB_EHCI_PCI help Enables support for the PCI-based EHCI controller.
-config USB_EHCI_RCAR_GEN3 - bool "Support for Renesas RCar M3/H3 EHCI USB controller" - depends on RCAR_GEN3 - default y - ---help--- - Enables support for the on-chip EHCI controller on Renesas - R8A7795 and R8A7796 SoCs. - config USB_EHCI_ZYNQ bool "Support for Xilinx Zynq on-chip EHCI USB controller" depends on ARCH_ZYNQ diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 29afb7cf1d..83903fcf99 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -46,7 +46,6 @@ obj-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o obj-$(CONFIG_USB_EHCI_VCT) += ehci-vct.o obj-$(CONFIG_USB_EHCI_VF) += ehci-vf.o obj-$(CONFIG_USB_EHCI_RMOBILE) += ehci-rmobile.o -obj-$(CONFIG_USB_EHCI_RCAR_GEN3) += ehci-rcar_gen3.o obj-$(CONFIG_USB_EHCI_ZYNQ) += ehci-zynq.o
# xhci diff --git a/drivers/usb/host/ehci-rcar_gen3.c b/drivers/usb/host/ehci-rcar_gen3.c deleted file mode 100644 index 525e7f3573..0000000000 --- a/drivers/usb/host/ehci-rcar_gen3.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * drivers/usb/host/ehci-rcar_gen3. - * This file is EHCI HCD (Host Controller Driver) for USB. - * - * Copyright (C) 2015-2017 Renesas Electronics Corporation - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <errno.h> -#include <wait_bit.h> -#include <asm/io.h> -#include <usb/ehci-ci.h> -#include "ehci.h" - -#define RCAR_GEN3_USB_BASE(n) (0xEE080000 + ((n) * 0x20000)) - -#define EHCI_USBCMD 0x120 - -#define CORE_SPD_RSM_TIMSET 0x30c -#define CORE_OC_TIMSET 0x310 - -/* Register offset */ -#define AHB_OFFSET 0x200 - -#define BASE_HSUSB 0xE6590000 -#define REG_LPSTS (BASE_HSUSB + 0x0102) /* 16bit */ -#define SUSPM 0x4000 -#define SUSPM_NORMAL BIT(14) -#define REG_UGCTRL2 (BASE_HSUSB + 0x0184) /* 32bit */ -#define USB0SEL 0x00000030 -#define USB0SEL_EHCI 0x00000010 - -#define SMSTPCR7 0xE615014C -#define SMSTPCR700 BIT(0) /* EHCI3 */ -#define SMSTPCR701 BIT(1) /* EHCI2 */ -#define SMSTPCR702 BIT(2) /* EHCI1 */ -#define SMSTPCR703 BIT(3) /* EHCI0 */ -#define SMSTPCR704 BIT(4) /* HSUSB */ - -#define AHB_PLL_RST BIT(1) - -#define USBH_INTBEN BIT(2) -#define USBH_INTAEN BIT(1) - -#define AHB_INT_ENABLE 0x200 -#define AHB_USBCTR 0x20c - -int ehci_hcd_stop(int index) -{ -#if defined(CONFIG_R8A7795) - const u32 mask = SMSTPCR703 | SMSTPCR702 | SMSTPCR701 | SMSTPCR700; -#else - const u32 mask = SMSTPCR703 | SMSTPCR702; -#endif - const u32 base = RCAR_GEN3_USB_BASE(index); - int ret; - - /* Reset EHCI */ - setbits_le32((uintptr_t)(base + EHCI_USBCMD), CMD_RESET); - ret = wait_for_bit("ehci-rcar", (void *)(uintptr_t)base + EHCI_USBCMD, - CMD_RESET, false, 10, true); - if (ret) { - printf("ehci-rcar: reset failed (index=%i, ret=%i).\n", - index, ret); - } - - setbits_le32(SMSTPCR7, BIT(3 - index)); - - if ((readl(SMSTPCR7) & mask) == mask) - setbits_le32(SMSTPCR7, SMSTPCR704); - - return 0; -} - -int ehci_hcd_init(int index, enum usb_init_type init, - struct ehci_hccr **hccr, struct ehci_hcor **hcor) -{ - const void __iomem *base = - (void __iomem *)(uintptr_t)RCAR_GEN3_USB_BASE(index); - struct usb_ehci *ehci = (struct usb_ehci *)(uintptr_t)base; - - clrbits_le32(SMSTPCR7, BIT(3 - index)); - clrbits_le32(SMSTPCR7, SMSTPCR704); - - *hccr = (struct ehci_hccr *)((uintptr_t)&ehci->caplength); - *hcor = (struct ehci_hcor *)((uintptr_t)*hccr + - HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase))); - - /* Enable interrupt */ - setbits_le32(base + AHB_INT_ENABLE, USBH_INTBEN | USBH_INTAEN); - writel(0x014e029b, base + CORE_SPD_RSM_TIMSET); - writel(0x000209ab, base + CORE_OC_TIMSET); - - /* Choice USB0SEL */ - clrsetbits_le32(REG_UGCTRL2, USB0SEL, USB0SEL_EHCI); - - /* Clock & Reset */ - clrbits_le32(base + AHB_USBCTR, AHB_PLL_RST); - - /* low power status */ - clrsetbits_le16(REG_LPSTS, SUSPM, SUSPM_NORMAL); - - return 0; -}
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Marek Vasut