diff options
| author | Qii Wang <qii.wang@mediatek.com> | 2019-01-18 09:29:09 +0800 |
|---|---|---|
| committer | Julius Werner <jwerner@chromium.org> | 2019-08-07 00:42:44 +0000 |
| commit | 66532b0ba7616fdc2ab487ef395c2acf0b5bcac3 (patch) | |
| tree | 302f7ba41750e30e53b3746c9994585bf771c81e /src/soc/mediatek/mt8183/include | |
| parent | 02547c58869eed2295853ad12618285d45fca7da (diff) | |
mediatek/mt8183: Add I2C driver code
This patch implements i2c driver for MT8183.
BUG=b:80501386
BRANCH=none
TEST=Boot correctly on kukui.
Change-Id: I0a4d78b494819f45951f78e5a618021000cf3463
Signed-off-by: Qii Wang <qii.wang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30976
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/mediatek/mt8183/include')
| -rw-r--r-- | src/soc/mediatek/mt8183/include/soc/addressmap.h | 2 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8183/include/soc/i2c.h | 59 |
2 files changed, 61 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8183/include/soc/addressmap.h b/src/soc/mediatek/mt8183/include/soc/addressmap.h index 0f085b2c8d..5a4784d03d 100644 --- a/src/soc/mediatek/mt8183/include/soc/addressmap.h +++ b/src/soc/mediatek/mt8183/include/soc/addressmap.h @@ -36,8 +36,10 @@ enum { DRAMC_CH_BASE = IO_PHYS + 0x00228000, SSPM_SRAM_BASE = IO_PHYS + 0x00400000, SSPM_CFG_BASE = IO_PHYS + 0x00440000, + I2C_DMA_BASE = IO_PHYS + 0x01000080, AUXADC_BASE = IO_PHYS + 0x01001000, UART0_BASE = IO_PHYS + 0x01002000, + I2C_BASE = IO_PHYS + 0x01005000, SPI0_BASE = IO_PHYS + 0x0100A000, SPI1_BASE = IO_PHYS + 0x01010000, SPI2_BASE = IO_PHYS + 0x01012000, diff --git a/src/soc/mediatek/mt8183/include/soc/i2c.h b/src/soc/mediatek/mt8183/include/soc/i2c.h new file mode 100644 index 0000000000..a75b6f002e --- /dev/null +++ b/src/soc/mediatek/mt8183/include/soc/i2c.h @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that 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. + */ + +#ifndef SOC_MEDIATEK_MT8183_I2C_H +#define SOC_MEDIATEK_MT8183_I2C_H + +#include <soc/i2c_common.h> + +/* I2C Register */ +struct mt_i2c_regs { + uint32_t data_port; + uint32_t slave_addr; + uint32_t intr_mask; + uint32_t intr_stat; + uint32_t control; + uint32_t transfer_len; + uint32_t transac_len; + uint32_t delay_len; + uint32_t timing; + uint32_t start; + uint32_t ext_conf; + uint32_t ltiming; + uint32_t hs; + uint32_t io_config; + uint32_t fifo_addr_clr; + uint32_t reserved0[2]; + uint32_t transfer_aux_len; + uint32_t clock_div; + uint32_t time_out; + uint32_t softreset; + uint32_t reserved1[36]; + uint32_t debug_stat; + uint32_t debug_ctrl; + uint32_t reserved2[2]; + uint32_t fifo_stat; + uint32_t fifo_thresh; + uint32_t reserved3[932]; + uint32_t multi_dma; + uint32_t reserved4[2]; + uint32_t rollback; +}; + +check_member(mt_i2c_regs, multi_dma, 0xf8c); + +void mtk_i2c_bus_init(uint8_t bus); + +#endif /* SOC_MEDIATEK_MT8183_I2C_H */ |