diff options
Diffstat (limited to 'src/soc/samsung/exynos5420/i2c.h')
-rw-r--r-- | src/soc/samsung/exynos5420/i2c.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/soc/samsung/exynos5420/i2c.h b/src/soc/samsung/exynos5420/i2c.h new file mode 100644 index 0000000000..e8fe8201db --- /dev/null +++ b/src/soc/samsung/exynos5420/i2c.h @@ -0,0 +1,78 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Samsung Electronics + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CPU_SAMSUNG_EXYNOS5420_I2C_H +#define CPU_SAMSUNG_EXYNOS5420_I2C_H + +#include "periph.h" + +struct s3c24x0_i2c { + u32 iiccon; + u32 iicstat; + u32 iicadd; + u32 iicds; + u32 iiclc; +} __attribute__ ((packed)); + +struct exynos5_hsi2c { + u32 usi_ctl; + u32 usi_fifo_ctl; + u32 usi_trailing_ctl; + u32 usi_clk_ctl; + u32 usi_clk_slot; + u32 spi_ctl; + u32 uart_ctl; + u32 res1; + u32 usi_int_en; + u32 usi_int_stat; + u32 usi_modem_stat; + u32 usi_error_stat; + u32 usi_fifo_stat; + u32 usi_txdata; + u32 usi_rxdata; + u32 res2; + u32 usi_conf; + u32 usi_auto_conf; + u32 usi_timeout; + u32 usi_manual_cmd; + u32 usi_trans_status; + u32 usi_timing_hs1; + u32 usi_timing_hs2; + u32 usi_timing_hs3; + u32 usi_timing_fs1; + u32 usi_timing_fs2; + u32 usi_timing_fs3; + u32 usi_timing_sla; + u32 i2c_addr; +} __attribute__ ((packed)); + +struct s3c24x0_i2c_bus { + int bus_num; + struct s3c24x0_i2c *regs; + enum periph_id periph_id; + struct exynos5_hsi2c *hsregs; + int is_highspeed; /* High speed type, rather than I2C */ + int id; + unsigned clk_cycle; + unsigned clk_div; +}; + +void i2c_init(unsigned bus, int speed, int slaveadd); + +#endif /* CPU_SAMSUNG_EXYNOS5420_I2C_H */ |