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1 | /** @file\r |
2 | Platform Erratas performed by early init PEIM driver.\r | |
3 | \r | |
4 | Copyright (c) 2013 Intel Corporation.\r | |
5 | \r | |
6 | This program and the accompanying materials\r | |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "CommonHeader.h"\r | |
17 | #include "PlatformEarlyInit.h"\r | |
18 | \r | |
19 | //\r | |
20 | // Constants.\r | |
21 | //\r | |
22 | \r | |
23 | //\r | |
24 | // Platform EHCI Packet Buffer OUT/IN Thresholds, values in number of DWORDs.\r | |
25 | //\r | |
26 | #define EHCI_OUT_THRESHOLD_VALUE (0x7f)\r | |
27 | #define EHCI_IN_THRESHOLD_VALUE (0x7f)\r | |
28 | \r | |
29 | //\r | |
30 | // Platform init USB device interrupt masks.\r | |
31 | //\r | |
32 | #define V_IOH_USBDEVICE_D_INTR_MSK_UDC_REG (0x0000007f)\r | |
33 | #define V_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG (B_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG_OUT_EP_MASK | B_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG_IN_EP_MASK)\r | |
34 | \r | |
35 | //\r | |
36 | // Global variables defined within this source module.\r | |
37 | //\r | |
38 | \r | |
39 | UINTN IohEhciPciReg[IOH_MAX_EHCI_USB_CONTROLLERS] = {\r | |
40 | PCI_LIB_ADDRESS (IOH_USB_BUS_NUMBER, IOH_USB_EHCI_DEVICE_NUMBER, IOH_EHCI_FUNCTION_NUMBER, 0),\r | |
41 | };\r | |
42 | \r | |
43 | UINTN IohUsbDevicePciReg[IOH_MAX_USBDEVICE_USB_CONTROLLERS] = {\r | |
44 | PCI_LIB_ADDRESS (IOH_USB_BUS_NUMBER, IOH_USBDEVICE_DEVICE_NUMBER, IOH_USBDEVICE_FUNCTION_NUMBER, 0),\r | |
45 | };\r | |
46 | \r | |
47 | //\r | |
48 | // Routines local to this source module.\r | |
49 | //\r | |
50 | \r | |
51 | /** Perform USB erratas after MRC init.\r | |
52 | \r | |
53 | **/\r | |
54 | VOID\r | |
55 | PlatformUsbErratasPostMrc (\r | |
56 | VOID\r | |
57 | )\r | |
58 | {\r | |
59 | UINT32 Index;\r | |
60 | UINT32 TempBar0Addr;\r | |
61 | UINT16 SaveCmdReg;\r | |
62 | UINT32 SaveBar0Reg;\r | |
63 | \r | |
64 | TempBar0Addr = PcdGet32(PcdPeiQNCUsbControllerMemoryBaseAddress);\r | |
65 | \r | |
66 | //\r | |
67 | // Apply EHCI controller erratas.\r | |
68 | //\r | |
69 | for (Index = 0; Index < IOH_MAX_EHCI_USB_CONTROLLERS; Index++, TempBar0Addr += IOH_USB_CONTROLLER_MMIO_RANGE) {\r | |
70 | \r | |
71 | if ((PciRead16 (IohEhciPciReg[Index] + R_IOH_USB_VENDOR_ID)) != V_IOH_USB_VENDOR_ID) {\r | |
72 | continue; // Device not enabled, skip.\r | |
73 | }\r | |
74 | \r | |
75 | //\r | |
76 | // Save current settings for PCI CMD/BAR0 registers\r | |
77 | //\r | |
78 | SaveCmdReg = PciRead16 (IohEhciPciReg[Index] + R_IOH_USB_COMMAND);\r | |
79 | SaveBar0Reg = PciRead32 (IohEhciPciReg[Index] + R_IOH_USB_MEMBAR);\r | |
80 | \r | |
81 | //\r | |
82 | // Temp. assign base address register, Enable Memory Space.\r | |
83 | //\r | |
84 | PciWrite32 ((IohEhciPciReg[Index] + R_IOH_USB_MEMBAR), TempBar0Addr);\r | |
85 | PciWrite16 (IohEhciPciReg[Index] + R_IOH_USB_COMMAND, SaveCmdReg | B_IOH_USB_COMMAND_MSE);\r | |
86 | \r | |
87 | \r | |
88 | //\r | |
89 | // Set packet buffer OUT/IN thresholds.\r | |
90 | //\r | |
91 | MmioAndThenOr32 (\r | |
92 | TempBar0Addr + R_IOH_EHCI_INSNREG01,\r | |
93 | (UINT32) (~(B_IOH_EHCI_INSNREG01_OUT_THRESHOLD_MASK | B_IOH_EHCI_INSNREG01_IN_THRESHOLD_MASK)),\r | |
94 | (UINT32) ((EHCI_OUT_THRESHOLD_VALUE << B_IOH_EHCI_INSNREG01_OUT_THRESHOLD_BP) | (EHCI_IN_THRESHOLD_VALUE << B_IOH_EHCI_INSNREG01_IN_THRESHOLD_BP))\r | |
95 | );\r | |
96 | \r | |
97 | //\r | |
98 | // Restore settings for PCI CMD/BAR0 registers\r | |
99 | //\r | |
100 | PciWrite32 ((IohEhciPciReg[Index] + R_IOH_USB_MEMBAR), SaveBar0Reg);\r | |
101 | PciWrite16 (IohEhciPciReg[Index] + R_IOH_USB_COMMAND, SaveCmdReg);\r | |
102 | }\r | |
103 | \r | |
104 | //\r | |
105 | // Apply USB device controller erratas.\r | |
106 | //\r | |
107 | for (Index = 0; Index < IOH_MAX_USBDEVICE_USB_CONTROLLERS; Index++, TempBar0Addr += IOH_USB_CONTROLLER_MMIO_RANGE) {\r | |
108 | \r | |
109 | if ((PciRead16 (IohUsbDevicePciReg[Index] + R_IOH_USB_VENDOR_ID)) != V_IOH_USB_VENDOR_ID) {\r | |
110 | continue; // Device not enabled, skip.\r | |
111 | }\r | |
112 | \r | |
113 | //\r | |
114 | // Save current settings for PCI CMD/BAR0 registers\r | |
115 | //\r | |
116 | SaveCmdReg = PciRead16 (IohUsbDevicePciReg[Index] + R_IOH_USB_COMMAND);\r | |
117 | SaveBar0Reg = PciRead32 (IohUsbDevicePciReg[Index] + R_IOH_USB_MEMBAR);\r | |
118 | \r | |
119 | //\r | |
120 | // Temp. assign base address register, Enable Memory Space.\r | |
121 | //\r | |
122 | PciWrite32 ((IohUsbDevicePciReg[Index] + R_IOH_USB_MEMBAR), TempBar0Addr);\r | |
123 | PciWrite16 (IohUsbDevicePciReg[Index] + R_IOH_USB_COMMAND, SaveCmdReg | B_IOH_USB_COMMAND_MSE);\r | |
124 | \r | |
125 | //\r | |
126 | // Erratas for USB Device interrupt registers.\r | |
127 | //\r | |
128 | \r | |
129 | //\r | |
130 | // 1st Mask interrupts.\r | |
131 | //\r | |
132 | MmioWrite32 (\r | |
133 | TempBar0Addr + R_IOH_USBDEVICE_D_INTR_MSK_UDC_REG,\r | |
134 | V_IOH_USBDEVICE_D_INTR_MSK_UDC_REG\r | |
135 | );\r | |
136 | //\r | |
137 | // 2nd RW/1C of equivalent status bits.\r | |
138 | //\r | |
139 | MmioWrite32 (\r | |
140 | TempBar0Addr + R_IOH_USBDEVICE_D_INTR_UDC_REG,\r | |
141 | V_IOH_USBDEVICE_D_INTR_MSK_UDC_REG\r | |
142 | );\r | |
143 | \r | |
144 | //\r | |
145 | // 1st Mask end point interrupts.\r | |
146 | //\r | |
147 | MmioWrite32 (\r | |
148 | TempBar0Addr + R_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG,\r | |
149 | V_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG\r | |
150 | );\r | |
151 | //\r | |
152 | // 2nd RW/1C of equivalent end point status bits.\r | |
153 | //\r | |
154 | MmioWrite32 (\r | |
155 | TempBar0Addr + R_IOH_USBDEVICE_EP_INTR_UDC_REG,\r | |
156 | V_IOH_USBDEVICE_EP_INTR_MSK_UDC_REG\r | |
157 | );\r | |
158 | \r | |
159 | //\r | |
160 | // Restore settings for PCI CMD/BAR0 registers\r | |
161 | //\r | |
162 | PciWrite32 ((IohUsbDevicePciReg[Index] + R_IOH_USB_MEMBAR), SaveBar0Reg);\r | |
163 | PciWrite16 (IohUsbDevicePciReg[Index] + R_IOH_USB_COMMAND, SaveCmdReg);\r | |
164 | }\r | |
165 | }\r | |
166 | \r | |
167 | //\r | |
168 | // Routines exported by this source module.\r | |
169 | //\r | |
170 | \r | |
171 | /** Perform Platform Erratas after MRC.\r | |
172 | \r | |
173 | @retval EFI_SUCCESS Operation success.\r | |
174 | \r | |
175 | **/\r | |
176 | EFI_STATUS\r | |
177 | EFIAPI\r | |
178 | PlatformErratasPostMrc (\r | |
179 | VOID\r | |
180 | )\r | |
181 | {\r | |
182 | PlatformUsbErratasPostMrc ();\r | |
183 | return EFI_SUCCESS;\r | |
184 | }\r |