usb: ehci: rmobile: Add support ehci host driver of rmobile SoCs

The rmobile SoC has usb host controller.
This supports USB controllers listed in the R8A7790, R8A7791 and R8A7740.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Reviewed-by: Marek Vasut <marex@denx.de>

1 files changed, 147 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-rmobile/ehci-rmobile.h b/arch/arm/include/asm/arch-rmobile/ehci-rmobile.h
new file mode 100644
index 0000000..463654e
--- /dev/null
+++ b/arch/arm/include/asm/arch-rmobile/ehci-rmobile.h
@@ -0,0 +1,147 @@
+/*
+ *  Copyright (C) 2013,2014 Renesas Electronics Corporation
+ *  Copyright (C) 2014 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ *
+ *  SPDX-License-Identifier:     GPL-2.0
+ */
+
+#ifndef __EHCI_RMOBILE_H__
+#define __EHCI_RMOBILE_H__
+
+/* Register offset */
+#define OHCI_OFFSET	0x00
+#define OHCI_SIZE	0x1000
+#define EHCI_OFFSET	0x1000
+#define EHCI_SIZE	0x1000
+
+#define EHCI_USBCMD	(EHCI_OFFSET + 0x0020)
+
+/* USBCTR */
+#define DIRPD		(1 << 8)
+#define PLL_RST		(1 << 2)
+#define PCICLK_MASK	(1 << 1)
+#define USBH_RST	(1 << 0)
+
+/* CMND_STS */
+#define SERREN		(1 << 8)
+#define PERREN		(1 << 6)
+#define MASTEREN	(1 << 2)
+#define MEMEN		(1 << 1)
+
+/* PCIAHB_WIN1_CTR and PCIAHB_WIN2_CTR */
+#define PCIAHB_WIN_PREFETCH	((1 << 1)|(1 << 0))
+
+/* AHBPCI_WIN1_CTR */
+#define PCIWIN1_PCICMD		((1 << 3)|(1 << 1))
+#define AHB_CFG_AHBPCI		0x40000000
+#define AHB_CFG_HOST		0x80000000
+
+/* AHBPCI_WIN2_CTR */
+#define PCIWIN2_PCICMD		((1 << 2)|(1 << 1))
+
+/* PCI_INT_ENABLE */
+#define USBH_PMEEN		(1 << 19)
+#define USBH_INTBEN		(1 << 17)
+#define USBH_INTAEN		(1 << 16)
+
+/* AHB_BUS_CTR */
+#define SMODE_READY_CTR		(1 << 17)
+#define SMODE_READ_BURST	(1 << 16)
+#define MMODE_HBUSREQ		(1 << 7)
+#define MMODE_BOUNDARY		((1 << 6)|(1 << 5))
+#define MMODE_BURST_WIDTH	((1 << 4)|(1 << 3))
+#define MMODE_SINGLE_MODE	((1 << 4)|(1 << 3))
+#define MMODE_WR_INCR		(1 << 2)
+#define MMODE_BYTE_BURST	(1 << 1)
+#define MMODE_HTRANS		(1 << 0)
+
+/* PCI_ARBITER_CTR */
+#define PCIBUS_PARK_TIMER       0x00FF0000
+#define PCIBUS_PARK_TIMER_SET   0x00070000
+#define PCIBP_MODE		(1 << 12)
+#define PCIREQ7                 (1 << 7)
+#define PCIREQ6                 (1 << 6)
+#define PCIREQ5                 (1 << 5)
+#define PCIREQ4                 (1 << 4)
+#define PCIREQ3                 (1 << 3)
+#define PCIREQ2                 (1 << 2)
+#define PCIREQ1                 (1 << 1)
+#define PCIREQ0                 (1 << 0)
+
+#define SMSTPCR7        0xE615014C
+#define SMSTPCR703      (1 << 3)
+
+/* Init AHB master and slave functions of the host logic */
+#define AHB_BUS_CTR_INIT \
+	(SMODE_READY_CTR | MMODE_HBUSREQ | MMODE_WR_INCR | \
+	 MMODE_BYTE_BURST | MMODE_HTRANS)
+
+#define USBCTR_WIN_SIZE_1GB	0x800
+
+/* PCI Configuration Registers */
+#define PCI_CONF_OHCI_OFFSET	0x10000
+#define PCI_CONF_EHCI_OFFSET	0x10100
+struct ahb_pciconf {
+	u32 vid_did;
+	u32 cmnd_sts;
+	u32 rev;
+	u32 cache_line;
+	u32 basead;
+};
+
+/* PCI Configuration Registers for AHB-PCI Bridge Registers */
+#define PCI_CONF_AHBPCI_OFFSET	0x10000
+struct ahbconf_pci_bridge {
+	u32 vid_did;		/* 0x00 */
+	u32 cmnd_sts;
+	u32 revid_cc;
+	u32 cls_lt_ht_bist;
+	u32 basead;		/* 0x10 */
+	u32 win1_basead;
+	u32 win2_basead;
+	u32 dummy0[5];
+	u32 ssvdi_ssid;		/* 0x2C */
+	u32 dummy1[4];
+	u32 intr_line_pin;
+};
+
+/* AHB-PCI Bridge PCI Communication Registers */
+#define AHBPCI_OFFSET	0x10800
+struct ahbcom_pci_bridge {
+	u32 pciahb_win1_ctr;	/* 0x00 */
+	u32 pciahb_win2_ctr;
+	u32 pciahb_dct_ctr;
+	u32 dummy0;
+	u32 ahbpci_win1_ctr;	/* 0x10 */
+	u32 ahbpci_win2_ctr;
+	u32 dummy1;
+	u32 ahbpci_dct_ctr;
+	u32 pci_int_enable;	/* 0x20 */
+	u32 pci_int_status;
+	u32 dummy2[2];
+	u32 ahb_bus_ctr;	/* 0x30 */
+	u32 usbctr;
+	u32 dummy3[2];
+	u32 pci_arbiter_ctr;	/* 0x40 */
+	u32 dummy4;
+	u32 pci_unit_rev;	/* 0x48 */
+};
+
+struct rmobile_ehci_reg {
+	u32 hciversion;		/* hciversion/caplength */
+	u32 hcsparams;		/* hcsparams */
+	u32 hccparams;		/* hccparams */
+	u32 hcsp_portroute;	/* hcsp_portroute */
+	u32 usbcmd;		/* usbcmd */
+	u32 usbsts;		/* usbsts */
+	u32 usbintr;		/* usbintr */
+	u32 frindex;		/* frindex */
+	u32 ctrldssegment;	/* ctrldssegment */
+	u32 periodiclistbase;	/* periodiclistbase */
+	u32 asynclistaddr;	/* asynclistaddr */
+	u32 dummy[9];
+	u32 configflag;		/* configflag */
+	u32 portsc;		/* portsc */
+};
+
+#endif /* __EHCI_RMOBILE_H__ */