mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
*/
|
|
|
|
#ifndef _S3C24X0_I2C_H
|
|
#define _S3C24X0_I2C_H
|
|
|
|
struct s3c24x0_i2c {
|
|
u32 iiccon;
|
|
u32 iicstat;
|
|
u32 iicadd;
|
|
u32 iicds;
|
|
u32 iiclc;
|
|
};
|
|
|
|
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;
|
|
};
|
|
|
|
struct s3c24x0_i2c_bus {
|
|
bool active; /* port is active and available */
|
|
int node; /* device tree node */
|
|
int bus_num; /* i2c bus number */
|
|
struct s3c24x0_i2c *regs;
|
|
struct exynos5_hsi2c *hsregs;
|
|
int is_highspeed; /* High speed type, rather than I2C */
|
|
unsigned clock_frequency;
|
|
int id;
|
|
unsigned clk_cycle;
|
|
unsigned clk_div;
|
|
};
|
|
|
|
#define I2C_WRITE 0
|
|
#define I2C_READ 1
|
|
|
|
#define I2C_OK 0
|
|
#define I2C_NOK 1
|
|
#define I2C_NACK 2
|
|
#define I2C_NOK_LA 3 /* Lost arbitration */
|
|
#define I2C_NOK_TOUT 4 /* time out */
|
|
|
|
/* S3C I2C Controller bits */
|
|
#define I2CSTAT_BSY 0x20 /* Busy bit */
|
|
#define I2CSTAT_NACK 0x01 /* Nack bit */
|
|
#define I2CCON_ACKGEN 0x80 /* Acknowledge generation */
|
|
#define I2CCON_IRPND 0x10 /* Interrupt pending bit */
|
|
#define I2C_MODE_MT 0xC0 /* Master Transmit Mode */
|
|
#define I2C_MODE_MR 0x80 /* Master Receive Mode */
|
|
#define I2C_START_STOP 0x20 /* START / STOP */
|
|
#define I2C_TXRX_ENA 0x10 /* I2C Tx/Rx enable */
|
|
|
|
#define I2C_TIMEOUT_MS 10 /* 10 ms */
|
|
|
|
#endif /* _S3C24X0_I2C_H */
|