Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / i2c / designware_i2c.h

diff --git a/qemu/roms/u-boot/drivers/i2c/designware_i2c.h b/qemu/roms/u-boot/drivers/i2c/designware_i2c.h
new file mode 100644 (file)
index 0000000..19b09df
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/i2c/designware_i2c.h
@@ -0,0 +1,133 @@
+/*
+ * (C) Copyright 2009
+ * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#ifndef __DW_I2C_H_
+#define __DW_I2C_H_
+
+struct i2c_regs {
+       u32 ic_con;
+       u32 ic_tar;
+       u32 ic_sar;
+       u32 ic_hs_maddr;
+       u32 ic_cmd_data;
+       u32 ic_ss_scl_hcnt;
+       u32 ic_ss_scl_lcnt;
+       u32 ic_fs_scl_hcnt;
+       u32 ic_fs_scl_lcnt;
+       u32 ic_hs_scl_hcnt;
+       u32 ic_hs_scl_lcnt;
+       u32 ic_intr_stat;
+       u32 ic_intr_mask;
+       u32 ic_raw_intr_stat;
+       u32 ic_rx_tl;
+       u32 ic_tx_tl;
+       u32 ic_clr_intr;
+       u32 ic_clr_rx_under;
+       u32 ic_clr_rx_over;
+       u32 ic_clr_tx_over;
+       u32 ic_clr_rd_req;
+       u32 ic_clr_tx_abrt;
+       u32 ic_clr_rx_done;
+       u32 ic_clr_activity;
+       u32 ic_clr_stop_det;
+       u32 ic_clr_start_det;
+       u32 ic_clr_gen_call;
+       u32 ic_enable;
+       u32 ic_status;
+       u32 ic_txflr;
+       u32 ix_rxflr;
+       u32 reserved_1;
+       u32 ic_tx_abrt_source;
+};
+
+#if !defined(IC_CLK)
+#define IC_CLK                 166
+#endif
+#define NANO_TO_MICRO          1000
+
+/* High and low times in different speed modes (in ns) */
+#define MIN_SS_SCL_HIGHTIME    4000
+#define MIN_SS_SCL_LOWTIME     4700
+#define MIN_FS_SCL_HIGHTIME    600
+#define MIN_FS_SCL_LOWTIME     1300
+#define MIN_HS_SCL_HIGHTIME    60
+#define MIN_HS_SCL_LOWTIME     160
+
+/* Worst case timeout for 1 byte is kept as 2ms */
+#define I2C_BYTE_TO            (CONFIG_SYS_HZ/500)
+#define I2C_STOPDET_TO         (CONFIG_SYS_HZ/500)
+#define I2C_BYTE_TO_BB         (I2C_BYTE_TO * 16)
+
+/* i2c control register definitions */
+#define IC_CON_SD              0x0040
+#define IC_CON_RE              0x0020
+#define IC_CON_10BITADDRMASTER 0x0010
+#define IC_CON_10BITADDR_SLAVE 0x0008
+#define IC_CON_SPD_MSK         0x0006
+#define IC_CON_SPD_SS          0x0002
+#define IC_CON_SPD_FS          0x0004
+#define IC_CON_SPD_HS          0x0006
+#define IC_CON_MM              0x0001
+
+/* i2c target address register definitions */
+#define TAR_ADDR               0x0050
+
+/* i2c slave address register definitions */
+#define IC_SLAVE_ADDR          0x0002
+
+/* i2c data buffer and command register definitions */
+#define IC_CMD                 0x0100
+#define IC_STOP                        0x0200
+
+/* i2c interrupt status register definitions */
+#define IC_GEN_CALL            0x0800
+#define IC_START_DET           0x0400
+#define IC_STOP_DET            0x0200
+#define IC_ACTIVITY            0x0100
+#define IC_RX_DONE             0x0080
+#define IC_TX_ABRT             0x0040
+#define IC_RD_REQ              0x0020
+#define IC_TX_EMPTY            0x0010
+#define IC_TX_OVER             0x0008
+#define IC_RX_FULL             0x0004
+#define IC_RX_OVER             0x0002
+#define IC_RX_UNDER            0x0001
+
+/* fifo threshold register definitions */
+#define IC_TL0                 0x00
+#define IC_TL1                 0x01
+#define IC_TL2                 0x02
+#define IC_TL3                 0x03
+#define IC_TL4                 0x04
+#define IC_TL5                 0x05
+#define IC_TL6                 0x06
+#define IC_TL7                 0x07
+#define IC_RX_TL               IC_TL0
+#define IC_TX_TL               IC_TL0
+
+/* i2c enable register definitions */
+#define IC_ENABLE_0B           0x0001
+
+/* i2c status register  definitions */
+#define IC_STATUS_SA           0x0040
+#define IC_STATUS_MA           0x0020
+#define IC_STATUS_RFF          0x0010
+#define IC_STATUS_RFNE         0x0008
+#define IC_STATUS_TFE          0x0004
+#define IC_STATUS_TFNF         0x0002
+#define IC_STATUS_ACT          0x0001
+
+/* Speed Selection */
+#define IC_SPEED_MODE_STANDARD 1
+#define IC_SPEED_MODE_FAST     2
+#define IC_SPEED_MODE_MAX      3
+
+#define I2C_MAX_SPEED          3400000
+#define I2C_FAST_SPEED         400000
+#define I2C_STANDARD_SPEED     100000
+
+#endif /* __DW_I2C_H_ */