Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Sunxi ohci glue |
| 3 | * |
| 4 | * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com> |
| 5 | * |
| 6 | * Based on code from |
| 7 | * Allwinner Technology Co., Ltd. <www.allwinnertech.com> |
| 8 | * |
| 9 | * SPDX-License-Identifier: GPL-2.0+ |
| 10 | */ |
| 11 | |
| 12 | #include <common.h> |
| 13 | #include <asm/arch/clock.h> |
| 14 | #include <asm/arch/usb_phy.h> |
| 15 | #include <asm/io.h> |
| 16 | #include <dm.h> |
| 17 | #include <usb.h> |
| 18 | #include "ohci.h" |
| 19 | |
Hans de Goede | 8b6ab7d | 2016-03-21 14:44:35 +0100 | [diff] [blame] | 20 | #ifdef CONFIG_SUNXI_GEN_SUN4I |
| 21 | #define BASE_DIST 0x8000 |
| 22 | #define AHB_CLK_DIST 2 |
| 23 | #else |
| 24 | #define BASE_DIST 0x1000 |
| 25 | #define AHB_CLK_DIST 1 |
| 26 | #endif |
| 27 | |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 28 | struct ohci_sunxi_priv { |
| 29 | ohci_t ohci; |
| 30 | int ahb_gate_mask; /* Mask of ahb_gate0 clk gate bits for this hcd */ |
| 31 | int usb_gate_mask; /* Mask of usb_clk_cfg clk gate bits for this hcd */ |
| 32 | int phy_index; /* Index of the usb-phy attached to this hcd */ |
| 33 | }; |
| 34 | |
| 35 | static int ohci_usb_probe(struct udevice *dev) |
| 36 | { |
| 37 | struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; |
| 38 | struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev); |
| 39 | struct ohci_sunxi_priv *priv = dev_get_priv(dev); |
| 40 | struct ohci_regs *regs = (struct ohci_regs *)dev_get_addr(dev); |
Hans de Goede | 52b5e5a | 2016-04-09 15:00:52 +0200 | [diff] [blame] | 41 | int extra_ahb_gate_mask = 0; |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 42 | |
| 43 | bus_priv->companion = true; |
| 44 | |
| 45 | /* |
| 46 | * This should go away once we've moved to the driver model for |
| 47 | * clocks resp. phys. |
| 48 | */ |
Jelle van der Waa | a1f5d11 | 2016-02-09 23:59:33 +0100 | [diff] [blame] | 49 | priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_OHCI0; |
| 50 | #ifdef CONFIG_MACH_SUN8I_H3 |
Hans de Goede | 52b5e5a | 2016-04-09 15:00:52 +0200 | [diff] [blame] | 51 | extra_ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0; |
Jelle van der Waa | a1f5d11 | 2016-02-09 23:59:33 +0100 | [diff] [blame] | 52 | #endif |
| 53 | priv->usb_gate_mask = CCM_USB_CTRL_OHCI0_CLK; |
Andre Przywara | c114a98 | 2016-10-21 02:24:29 +0100 | [diff] [blame] | 54 | priv->phy_index = ((uintptr_t)regs - (SUNXI_USB1_BASE + 0x400)) / BASE_DIST; |
Hans de Goede | 8b6ab7d | 2016-03-21 14:44:35 +0100 | [diff] [blame] | 55 | priv->ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST; |
Hans de Goede | 52b5e5a | 2016-04-09 15:00:52 +0200 | [diff] [blame] | 56 | extra_ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST; |
Hans de Goede | 8b6ab7d | 2016-03-21 14:44:35 +0100 | [diff] [blame] | 57 | priv->usb_gate_mask <<= priv->phy_index; |
| 58 | priv->phy_index++; /* Non otg phys start at 1 */ |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 59 | |
Hans de Goede | 52b5e5a | 2016-04-09 15:00:52 +0200 | [diff] [blame] | 60 | setbits_le32(&ccm->ahb_gate0, |
| 61 | priv->ahb_gate_mask | extra_ahb_gate_mask); |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 62 | setbits_le32(&ccm->usb_clk_cfg, priv->usb_gate_mask); |
| 63 | #ifdef CONFIG_SUNXI_GEN_SUN6I |
Hans de Goede | 52b5e5a | 2016-04-09 15:00:52 +0200 | [diff] [blame] | 64 | setbits_le32(&ccm->ahb_reset0_cfg, |
| 65 | priv->ahb_gate_mask | extra_ahb_gate_mask); |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 66 | #endif |
| 67 | |
| 68 | sunxi_usb_phy_init(priv->phy_index); |
| 69 | sunxi_usb_phy_power_on(priv->phy_index); |
| 70 | |
| 71 | return ohci_register(dev, regs); |
| 72 | } |
| 73 | |
| 74 | static int ohci_usb_remove(struct udevice *dev) |
| 75 | { |
| 76 | struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; |
| 77 | struct ohci_sunxi_priv *priv = dev_get_priv(dev); |
| 78 | int ret; |
| 79 | |
| 80 | ret = ohci_deregister(dev); |
| 81 | if (ret) |
| 82 | return ret; |
| 83 | |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 84 | sunxi_usb_phy_exit(priv->phy_index); |
| 85 | |
| 86 | #ifdef CONFIG_SUNXI_GEN_SUN6I |
| 87 | clrbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask); |
| 88 | #endif |
| 89 | clrbits_le32(&ccm->usb_clk_cfg, priv->usb_gate_mask); |
| 90 | clrbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask); |
| 91 | |
| 92 | return 0; |
| 93 | } |
| 94 | |
| 95 | static const struct udevice_id ohci_usb_ids[] = { |
| 96 | { .compatible = "allwinner,sun4i-a10-ohci", }, |
| 97 | { .compatible = "allwinner,sun5i-a13-ohci", }, |
| 98 | { .compatible = "allwinner,sun6i-a31-ohci", }, |
| 99 | { .compatible = "allwinner,sun7i-a20-ohci", }, |
| 100 | { .compatible = "allwinner,sun8i-a23-ohci", }, |
Chen-Yu Tsai | 4bc3e0e | 2016-03-30 00:26:54 +0800 | [diff] [blame] | 101 | { .compatible = "allwinner,sun8i-a83t-ohci", }, |
Jelle van der Waa | a1f5d11 | 2016-02-09 23:59:33 +0100 | [diff] [blame] | 102 | { .compatible = "allwinner,sun8i-h3-ohci", }, |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 103 | { .compatible = "allwinner,sun9i-a80-ohci", }, |
Amit Singh Tomar | bd732d0 | 2016-10-21 02:24:30 +0100 | [diff] [blame] | 104 | { .compatible = "allwinner,sun50i-a64-ohci", }, |
Hans de Goede | 804fa57 | 2015-05-10 14:10:27 +0200 | [diff] [blame] | 105 | { } |
| 106 | }; |
| 107 | |
| 108 | U_BOOT_DRIVER(usb_ohci) = { |
| 109 | .name = "ohci_sunxi", |
| 110 | .id = UCLASS_USB, |
| 111 | .of_match = ohci_usb_ids, |
| 112 | .probe = ohci_usb_probe, |
| 113 | .remove = ohci_usb_remove, |
| 114 | .ops = &ohci_usb_ops, |
| 115 | .platdata_auto_alloc_size = sizeof(struct usb_platdata), |
| 116 | .priv_auto_alloc_size = sizeof(struct ohci_sunxi_priv), |
| 117 | .flags = DM_FLAG_ALLOC_PRIV_DMA, |
| 118 | }; |