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Diffstat (limited to 'src/soc/samsung/exynos5420/i2c.h')
-rw-r--r--src/soc/samsung/exynos5420/i2c.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/src/soc/samsung/exynos5420/i2c.h b/src/soc/samsung/exynos5420/i2c.h
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+++ b/src/soc/samsung/exynos5420/i2c.h
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+/*
+ * 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 */