# Copyright 2023 Dual Tachyon
# https://github.com/DualTachyon
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

[SPI]
$ = SPI_Port_t

CR = 0x0000
> TF_CLR, 16, 1
> RF_CLR, 15, 1
> TXDMAEN, 14, 1
> RXDMAEN, 13, 1

> MSR_SSN, 12, 1
= DISABLE, 0
= ENABLE, 1

> CPHA_DATA_HOLD_S, 8, 4
> LSB, 7, 1
> MSTR, 6, 1
> CPOL, 5, 1
> CPHA, 4, 1

> SPE, 3, 1
= DISABLE, 0
= ENABLE, 1

> SPR, 0, 3
= FPCLK_DIV_4, 0
= FPCLK_DIV_8, 1
= FPCLK_DIV_16, 2
= FPCLK_DIV_32, 3
= FPCLK_DIV_64, 4
= FPCLK_DIV_128, 5
= FPCLK_DIV_256, 6
= FPCLK_DIV_512, 7

WDR = 0x0004
RDR = 0x0008

IE = 0x0010
> RXFIFO_OVF, 0, 1
= DISABLE, 0
= ENABLE, 1

> RXFIFO_FULL, 1, 1
= DISABLE, 0
= ENABLE, 1

> RXFIFO_HFULL, 2, 1
= DISABLE, 0
= ENABLE, 1

> TXFIFO_EMPTY, 3, 1
= DISABLE, 0
= ENABLE, 1

> TXFIFO_HFULL, 4, 1
= DISABLE, 0
= ENABLE, 1

IF = 0x0014
FIFOST = 0x0018
> RFE, 0, 1
= NOT_EMPTY, 0
= EMPTY, 1

> RFF, 1, 1
= NOT_FULL, 0
= FULL, 1

> RFHF, 2, 1
= NOT_HALF_FULL, 0
= HALF_FULL, 1

> TFE, 3, 1
= NOT_EMPTY, 0
= EMPTY, 1

> TFF, 4, 1
= NOT_FULL, 0
= FULL, 1

> TFHF, 5, 1
= NOT_HALF_FULL,                   0
= HALF_FULL,                       1

> RF_LEVEL, 6, 3
= 0_BYTE, 0
= 1_BYTE, 1
= 2_BYTE, 2
= 3_BYTE, 3
= 4_BYTE, 4
= 5_BYTE, 5
= 6_BYTE, 6
= 7_BYTE, 7

> TF_LEVEL, 9, 3
= 0_BYTE, 0
= 1_BYTE, 1
= 2_BYTE, 2
= 3_BYTE, 3
= 4_BYTE, 4
= 5_BYTE, 5
= 6_BYTE, 6
= 7_BYTE, 7

[SPI0]
@ = 0x400B8000, 0x800, $SPI

[SPI1]
@ = 0x400B8800, 0x800, $SPI

