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2572f00db8
This adds support for the Microchip PIC32 MIPS microcontroller with the specific variant PIC32MZDA. PIC32MZDA is based on the MIPS m14KEc core and boots using device tree. This includes an early pin setup and early clock setup needed prior to device tree being initialized. In additon, an interface is provided to synchronize access to registers shared across several peripherals. Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/12097/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
242 lines
4.7 KiB
C
242 lines
4.7 KiB
C
/*
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* Joshua Henderson <joshua.henderson@microchip.com>
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* Copyright (C) 2015 Microchip Technology Inc. All rights reserved.
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*
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* This program is free software; you can distribute it and/or modify it
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* under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#ifndef _PIC32MZDA_EARLY_PIN_H
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#define _PIC32MZDA_EARLY_PIN_H
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/*
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* This is a complete, yet overly simplistic and unoptimized, PIC32MZDA PPS
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* configuration only useful before we have full pinctrl initialized.
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*/
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/* Input PPS Functions */
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enum {
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IN_FUNC_INT3,
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IN_FUNC_T2CK,
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IN_FUNC_T6CK,
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IN_FUNC_IC3,
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IN_FUNC_IC7,
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IN_FUNC_U1RX,
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IN_FUNC_U2CTS,
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IN_FUNC_U5RX,
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IN_FUNC_U6CTS,
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IN_FUNC_SDI1,
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IN_FUNC_SDI3,
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IN_FUNC_SDI5,
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IN_FUNC_SS6,
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IN_FUNC_REFCLKI1,
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IN_FUNC_INT4,
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IN_FUNC_T5CK,
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IN_FUNC_T7CK,
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IN_FUNC_IC4,
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IN_FUNC_IC8,
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IN_FUNC_U3RX,
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IN_FUNC_U4CTS,
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IN_FUNC_SDI2,
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IN_FUNC_SDI4,
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IN_FUNC_C1RX,
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IN_FUNC_REFCLKI4,
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IN_FUNC_INT2,
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IN_FUNC_T3CK,
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IN_FUNC_T8CK,
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IN_FUNC_IC2,
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IN_FUNC_IC5,
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IN_FUNC_IC9,
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IN_FUNC_U1CTS,
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IN_FUNC_U2RX,
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IN_FUNC_U5CTS,
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IN_FUNC_SS1,
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IN_FUNC_SS3,
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IN_FUNC_SS4,
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IN_FUNC_SS5,
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IN_FUNC_C2RX,
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IN_FUNC_INT1,
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IN_FUNC_T4CK,
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IN_FUNC_T9CK,
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IN_FUNC_IC1,
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IN_FUNC_IC6,
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IN_FUNC_U3CTS,
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IN_FUNC_U4RX,
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IN_FUNC_U6RX,
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IN_FUNC_SS2,
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IN_FUNC_SDI6,
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IN_FUNC_OCFA,
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IN_FUNC_REFCLKI3,
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};
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/* Input PPS Pins */
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#define IN_RPD2 0x00
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#define IN_RPG8 0x01
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#define IN_RPF4 0x02
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#define IN_RPD10 0x03
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#define IN_RPF1 0x04
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#define IN_RPB9 0x05
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#define IN_RPB10 0x06
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#define IN_RPC14 0x07
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#define IN_RPB5 0x08
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#define IN_RPC1 0x0A
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#define IN_RPD14 0x0B
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#define IN_RPG1 0x0C
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#define IN_RPA14 0x0D
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#define IN_RPD6 0x0E
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#define IN_RPD3 0x00
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#define IN_RPG7 0x01
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#define IN_RPF5 0x02
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#define IN_RPD11 0x03
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#define IN_RPF0 0x04
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#define IN_RPB1 0x05
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#define IN_RPE5 0x06
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#define IN_RPC13 0x07
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#define IN_RPB3 0x08
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#define IN_RPC4 0x0A
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#define IN_RPD15 0x0B
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#define IN_RPG0 0x0C
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#define IN_RPA15 0x0D
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#define IN_RPD7 0x0E
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#define IN_RPD9 0x00
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#define IN_RPG6 0x01
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#define IN_RPB8 0x02
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#define IN_RPB15 0x03
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#define IN_RPD4 0x04
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#define IN_RPB0 0x05
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#define IN_RPE3 0x06
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#define IN_RPB7 0x07
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#define IN_RPF12 0x09
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#define IN_RPD12 0x0A
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#define IN_RPF8 0x0B
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#define IN_RPC3 0x0C
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#define IN_RPE9 0x0D
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#define IN_RPD1 0x00
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#define IN_RPG9 0x01
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#define IN_RPB14 0x02
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#define IN_RPD0 0x03
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#define IN_RPB6 0x05
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#define IN_RPD5 0x06
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#define IN_RPB2 0x07
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#define IN_RPF3 0x08
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#define IN_RPF13 0x09
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#define IN_RPF2 0x0B
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#define IN_RPC2 0x0C
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#define IN_RPE8 0x0D
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/* Output PPS Pins */
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enum {
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OUT_RPD2,
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OUT_RPG8,
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OUT_RPF4,
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OUT_RPD10,
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OUT_RPF1,
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OUT_RPB9,
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OUT_RPB10,
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OUT_RPC14,
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OUT_RPB5,
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OUT_RPC1,
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OUT_RPD14,
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OUT_RPG1,
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OUT_RPA14,
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OUT_RPD6,
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OUT_RPD3,
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OUT_RPG7,
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OUT_RPF5,
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OUT_RPD11,
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OUT_RPF0,
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OUT_RPB1,
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OUT_RPE5,
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OUT_RPC13,
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OUT_RPB3,
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OUT_RPC4,
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OUT_RPD15,
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OUT_RPG0,
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OUT_RPA15,
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OUT_RPD7,
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OUT_RPD9,
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OUT_RPG6,
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OUT_RPB8,
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OUT_RPB15,
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OUT_RPD4,
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OUT_RPB0,
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OUT_RPE3,
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OUT_RPB7,
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OUT_RPF12,
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OUT_RPD12,
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OUT_RPF8,
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OUT_RPC3,
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OUT_RPE9,
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OUT_RPD1,
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OUT_RPG9,
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OUT_RPB14,
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OUT_RPD0,
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OUT_RPB6,
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OUT_RPD5,
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OUT_RPB2,
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OUT_RPF3,
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OUT_RPF13,
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OUT_RPC2,
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OUT_RPE8,
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OUT_RPF2,
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};
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/* Output PPS Functions */
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#define OUT_FUNC_U3TX 0x01
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#define OUT_FUNC_U4RTS 0x02
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#define OUT_FUNC_SDO1 0x05
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#define OUT_FUNC_SDO2 0x06
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#define OUT_FUNC_SDO3 0x07
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#define OUT_FUNC_SDO5 0x09
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#define OUT_FUNC_SS6 0x0A
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#define OUT_FUNC_OC3 0x0B
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#define OUT_FUNC_OC6 0x0C
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#define OUT_FUNC_REFCLKO4 0x0D
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#define OUT_FUNC_C2OUT 0x0E
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#define OUT_FUNC_C1TX 0x0F
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#define OUT_FUNC_U1TX 0x01
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#define OUT_FUNC_U2RTS 0x02
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#define OUT_FUNC_U5TX 0x03
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#define OUT_FUNC_U6RTS 0x04
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#define OUT_FUNC_SDO1 0x05
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#define OUT_FUNC_SDO2 0x06
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#define OUT_FUNC_SDO3 0x07
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#define OUT_FUNC_SDO4 0x08
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#define OUT_FUNC_SDO5 0x09
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#define OUT_FUNC_OC4 0x0B
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#define OUT_FUNC_OC7 0x0C
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#define OUT_FUNC_REFCLKO1 0x0F
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#define OUT_FUNC_U3RTS 0x01
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#define OUT_FUNC_U4TX 0x02
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#define OUT_FUNC_U6TX 0x04
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#define OUT_FUNC_SS1 0x05
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#define OUT_FUNC_SS3 0x07
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#define OUT_FUNC_SS4 0x08
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#define OUT_FUNC_SS5 0x09
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#define OUT_FUNC_SDO6 0x0A
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#define OUT_FUNC_OC5 0x0B
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#define OUT_FUNC_OC8 0x0C
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#define OUT_FUNC_C1OUT 0x0E
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#define OUT_FUNC_REFCLKO3 0x0F
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#define OUT_FUNC_U1RTS 0x01
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#define OUT_FUNC_U2TX 0x02
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#define OUT_FUNC_U5RTS 0x03
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#define OUT_FUNC_U6TX 0x04
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#define OUT_FUNC_SS2 0x06
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#define OUT_FUNC_SDO4 0x08
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#define OUT_FUNC_SDO6 0x0A
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#define OUT_FUNC_OC2 0x0B
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#define OUT_FUNC_OC1 0x0C
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#define OUT_FUNC_OC9 0x0D
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#define OUT_FUNC_C2TX 0x0F
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void pic32_pps_input(int function, int pin);
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void pic32_pps_output(int function, int pin);
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#endif
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