| /* |
| * Joshua Henderson <joshua.henderson@microchip.com> |
| * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. |
| * |
| * This program is free software; you can distribute it and/or modify it |
| * under the terms of the GNU General Public License (Version 2) as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * for more details. |
| */ |
| #include <asm/io.h> |
| |
| #include "early_pin.h" |
| |
| #define PPS_BASE 0x1f800000 |
| |
| /* Input PPS Registers */ |
| #define INT1R 0x1404 |
| #define INT2R 0x1408 |
| #define INT3R 0x140C |
| #define INT4R 0x1410 |
| #define T2CKR 0x1418 |
| #define T3CKR 0x141C |
| #define T4CKR 0x1420 |
| #define T5CKR 0x1424 |
| #define T6CKR 0x1428 |
| #define T7CKR 0x142C |
| #define T8CKR 0x1430 |
| #define T9CKR 0x1434 |
| #define IC1R 0x1438 |
| #define IC2R 0x143C |
| #define IC3R 0x1440 |
| #define IC4R 0x1444 |
| #define IC5R 0x1448 |
| #define IC6R 0x144C |
| #define IC7R 0x1450 |
| #define IC8R 0x1454 |
| #define IC9R 0x1458 |
| #define OCFAR 0x1460 |
| #define U1RXR 0x1468 |
| #define U1CTSR 0x146C |
| #define U2RXR 0x1470 |
| #define U2CTSR 0x1474 |
| #define U3RXR 0x1478 |
| #define U3CTSR 0x147C |
| #define U4RXR 0x1480 |
| #define U4CTSR 0x1484 |
| #define U5RXR 0x1488 |
| #define U5CTSR 0x148C |
| #define U6RXR 0x1490 |
| #define U6CTSR 0x1494 |
| #define SDI1R 0x149C |
| #define SS1R 0x14A0 |
| #define SDI2R 0x14A8 |
| #define SS2R 0x14AC |
| #define SDI3R 0x14B4 |
| #define SS3R 0x14B8 |
| #define SDI4R 0x14C0 |
| #define SS4R 0x14C4 |
| #define SDI5R 0x14CC |
| #define SS5R 0x14D0 |
| #define SDI6R 0x14D8 |
| #define SS6R 0x14DC |
| #define C1RXR 0x14E0 |
| #define C2RXR 0x14E4 |
| #define REFCLKI1R 0x14E8 |
| #define REFCLKI3R 0x14F0 |
| #define REFCLKI4R 0x14F4 |
| |
| static const struct |
| { |
| int function; |
| int reg; |
| } input_pin_reg[] = { |
| { IN_FUNC_INT3, INT3R }, |
| { IN_FUNC_T2CK, T2CKR }, |
| { IN_FUNC_T6CK, T6CKR }, |
| { IN_FUNC_IC3, IC3R }, |
| { IN_FUNC_IC7, IC7R }, |
| { IN_FUNC_U1RX, U1RXR }, |
| { IN_FUNC_U2CTS, U2CTSR }, |
| { IN_FUNC_U5RX, U5RXR }, |
| { IN_FUNC_U6CTS, U6CTSR }, |
| { IN_FUNC_SDI1, SDI1R }, |
| { IN_FUNC_SDI3, SDI3R }, |
| { IN_FUNC_SDI5, SDI5R }, |
| { IN_FUNC_SS6, SS6R }, |
| { IN_FUNC_REFCLKI1, REFCLKI1R }, |
| { IN_FUNC_INT4, INT4R }, |
| { IN_FUNC_T5CK, T5CKR }, |
| { IN_FUNC_T7CK, T7CKR }, |
| { IN_FUNC_IC4, IC4R }, |
| { IN_FUNC_IC8, IC8R }, |
| { IN_FUNC_U3RX, U3RXR }, |
| { IN_FUNC_U4CTS, U4CTSR }, |
| { IN_FUNC_SDI2, SDI2R }, |
| { IN_FUNC_SDI4, SDI4R }, |
| { IN_FUNC_C1RX, C1RXR }, |
| { IN_FUNC_REFCLKI4, REFCLKI4R }, |
| { IN_FUNC_INT2, INT2R }, |
| { IN_FUNC_T3CK, T3CKR }, |
| { IN_FUNC_T8CK, T8CKR }, |
| { IN_FUNC_IC2, IC2R }, |
| { IN_FUNC_IC5, IC5R }, |
| { IN_FUNC_IC9, IC9R }, |
| { IN_FUNC_U1CTS, U1CTSR }, |
| { IN_FUNC_U2RX, U2RXR }, |
| { IN_FUNC_U5CTS, U5CTSR }, |
| { IN_FUNC_SS1, SS1R }, |
| { IN_FUNC_SS3, SS3R }, |
| { IN_FUNC_SS4, SS4R }, |
| { IN_FUNC_SS5, SS5R }, |
| { IN_FUNC_C2RX, C2RXR }, |
| { IN_FUNC_INT1, INT1R }, |
| { IN_FUNC_T4CK, T4CKR }, |
| { IN_FUNC_T9CK, T9CKR }, |
| { IN_FUNC_IC1, IC1R }, |
| { IN_FUNC_IC6, IC6R }, |
| { IN_FUNC_U3CTS, U3CTSR }, |
| { IN_FUNC_U4RX, U4RXR }, |
| { IN_FUNC_U6RX, U6RXR }, |
| { IN_FUNC_SS2, SS2R }, |
| { IN_FUNC_SDI6, SDI6R }, |
| { IN_FUNC_OCFA, OCFAR }, |
| { IN_FUNC_REFCLKI3, REFCLKI3R }, |
| }; |
| |
| void pic32_pps_input(int function, int pin) |
| { |
| void __iomem *pps_base = ioremap_nocache(PPS_BASE, 0xF4); |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(input_pin_reg); i++) { |
| if (input_pin_reg[i].function == function) { |
| __raw_writel(pin, pps_base + input_pin_reg[i].reg); |
| return; |
| } |
| } |
| |
| iounmap(pps_base); |
| } |
| |
| /* Output PPS Registers */ |
| #define RPA14R 0x1538 |
| #define RPA15R 0x153C |
| #define RPB0R 0x1540 |
| #define RPB1R 0x1544 |
| #define RPB2R 0x1548 |
| #define RPB3R 0x154C |
| #define RPB5R 0x1554 |
| #define RPB6R 0x1558 |
| #define RPB7R 0x155C |
| #define RPB8R 0x1560 |
| #define RPB9R 0x1564 |
| #define RPB10R 0x1568 |
| #define RPB14R 0x1578 |
| #define RPB15R 0x157C |
| #define RPC1R 0x1584 |
| #define RPC2R 0x1588 |
| #define RPC3R 0x158C |
| #define RPC4R 0x1590 |
| #define RPC13R 0x15B4 |
| #define RPC14R 0x15B8 |
| #define RPD0R 0x15C0 |
| #define RPD1R 0x15C4 |
| #define RPD2R 0x15C8 |
| #define RPD3R 0x15CC |
| #define RPD4R 0x15D0 |
| #define RPD5R 0x15D4 |
| #define RPD6R 0x15D8 |
| #define RPD7R 0x15DC |
| #define RPD9R 0x15E4 |
| #define RPD10R 0x15E8 |
| #define RPD11R 0x15EC |
| #define RPD12R 0x15F0 |
| #define RPD14R 0x15F8 |
| #define RPD15R 0x15FC |
| #define RPE3R 0x160C |
| #define RPE5R 0x1614 |
| #define RPE8R 0x1620 |
| #define RPE9R 0x1624 |
| #define RPF0R 0x1640 |
| #define RPF1R 0x1644 |
| #define RPF2R 0x1648 |
| #define RPF3R 0x164C |
| #define RPF4R 0x1650 |
| #define RPF5R 0x1654 |
| #define RPF8R 0x1660 |
| #define RPF12R 0x1670 |
| #define RPF13R 0x1674 |
| #define RPG0R 0x1680 |
| #define RPG1R 0x1684 |
| #define RPG6R 0x1698 |
| #define RPG7R 0x169C |
| #define RPG8R 0x16A0 |
| #define RPG9R 0x16A4 |
| |
| static const struct |
| { |
| int pin; |
| int reg; |
| } output_pin_reg[] = { |
| { OUT_RPD2, RPD2R }, |
| { OUT_RPG8, RPG8R }, |
| { OUT_RPF4, RPF4R }, |
| { OUT_RPD10, RPD10R }, |
| { OUT_RPF1, RPF1R }, |
| { OUT_RPB9, RPB9R }, |
| { OUT_RPB10, RPB10R }, |
| { OUT_RPC14, RPC14R }, |
| { OUT_RPB5, RPB5R }, |
| { OUT_RPC1, RPC1R }, |
| { OUT_RPD14, RPD14R }, |
| { OUT_RPG1, RPG1R }, |
| { OUT_RPA14, RPA14R }, |
| { OUT_RPD6, RPD6R }, |
| { OUT_RPD3, RPD3R }, |
| { OUT_RPG7, RPG7R }, |
| { OUT_RPF5, RPF5R }, |
| { OUT_RPD11, RPD11R }, |
| { OUT_RPF0, RPF0R }, |
| { OUT_RPB1, RPB1R }, |
| { OUT_RPE5, RPE5R }, |
| { OUT_RPC13, RPC13R }, |
| { OUT_RPB3, RPB3R }, |
| { OUT_RPC4, RPC4R }, |
| { OUT_RPD15, RPD15R }, |
| { OUT_RPG0, RPG0R }, |
| { OUT_RPA15, RPA15R }, |
| { OUT_RPD7, RPD7R }, |
| { OUT_RPD9, RPD9R }, |
| { OUT_RPG6, RPG6R }, |
| { OUT_RPB8, RPB8R }, |
| { OUT_RPB15, RPB15R }, |
| { OUT_RPD4, RPD4R }, |
| { OUT_RPB0, RPB0R }, |
| { OUT_RPE3, RPE3R }, |
| { OUT_RPB7, RPB7R }, |
| { OUT_RPF12, RPF12R }, |
| { OUT_RPD12, RPD12R }, |
| { OUT_RPF8, RPF8R }, |
| { OUT_RPC3, RPC3R }, |
| { OUT_RPE9, RPE9R }, |
| { OUT_RPD1, RPD1R }, |
| { OUT_RPG9, RPG9R }, |
| { OUT_RPB14, RPB14R }, |
| { OUT_RPD0, RPD0R }, |
| { OUT_RPB6, RPB6R }, |
| { OUT_RPD5, RPD5R }, |
| { OUT_RPB2, RPB2R }, |
| { OUT_RPF3, RPF3R }, |
| { OUT_RPF13, RPF13R }, |
| { OUT_RPC2, RPC2R }, |
| { OUT_RPE8, RPE8R }, |
| { OUT_RPF2, RPF2R }, |
| }; |
| |
| void pic32_pps_output(int function, int pin) |
| { |
| void __iomem *pps_base = ioremap_nocache(PPS_BASE, 0x170); |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(output_pin_reg); i++) { |
| if (output_pin_reg[i].pin == pin) { |
| __raw_writel(function, |
| pps_base + output_pin_reg[i].reg); |
| return; |
| } |
| } |
| |
| iounmap(pps_base); |
| } |
