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i2c: Drop CONFIG_TSI108_I2C

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Last user of this driver went away in June 2015 in commit
d928664f41 ("powerpc: 74xx_7xx: remove 74xx_7xx cpu support")

Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Acked-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Tuomas Tynkkynen 2018-05-09 15:24:34 +03:00 committed by Tom Rini
parent ed9072c797
commit d70c79fa89
4 changed files with 0 additions and 484 deletions
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1
doc/driver-model/i2c-howto.txt
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@ -16,7 +16,6 @@ ones remain:
sh_i2c
sh_sh7734_i2c
soft_i2c
tsi108_i2c
zynq_i2c
The deadline for this work is the end of June 2017. If no one steps

1
drivers/i2c/Makefile
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@ -9,7 +9,6 @@ obj-$(CONFIG_$(SPL_)I2C_CROS_EC_TUNNEL) += cros_ec_tunnel.o
obj-$(CONFIG_$(SPL_)I2C_CROS_EC_LDO) += cros_ec_ldo.o
obj-$(CONFIG_I2C_MV) += mv_i2c.o
obj-$(CONFIG_TSI108_I2C) += tsi108_i2c.o
obj-$(CONFIG_SH_SH7734_I2C) += sh_sh7734_i2c.o
obj-$(CONFIG_SYS_I2C) += i2c_core.o
obj-$(CONFIG_SYS_I2C_ASPEED) += ast_i2c.o

275
drivers/i2c/tsi108_i2c.c
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@ -1,275 +0,0 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2004 Tundra Semiconductor Corp.
* Author: Alex Bounine
*
* NOTE: This driver should be converted to driver model before June 2017.
* Please see doc/driver-model/i2c-howto.txt for instructions.
*/
#include <config.h>
#include <common.h>
#include <tsi108.h>
#if defined(CONFIG_CMD_I2C)
#define I2C_DELAY 100000
#undef DEBUG_I2C
#ifdef DEBUG_I2C
#define DPRINT(x) printf (x)
#else
#define DPRINT(x)
#endif
/* All functions assume that Tsi108 I2C block is the only master on the bus */
/* I2C read helper function */
void i2c_init(int speed, int slaveaddr)
{
/*
* The TSI108 has a fixed I2C clock rate and doesn't support slave
* operation. This function only exists as a stub to fit into the
* U-Boot I2C API.
*/
}
static int i2c_read_byte (
uint i2c_chan, /* I2C channel number: 0 - main, 1 - SDC SPD */
uchar chip_addr,/* I2C device address on the bus */
uint byte_addr, /* Byte address within I2C device */
uchar * buffer /* pointer to data buffer */
)
{
u32 temp;
u32 to_count = I2C_DELAY;
u32 op_status = TSI108_I2C_TIMEOUT_ERR;
u32 chan_offset = TSI108_I2C_OFFSET;
DPRINT (("I2C read_byte() %d 0x%02x 0x%02x\n",
i2c_chan, chip_addr, byte_addr));
if (0 != i2c_chan)
chan_offset = TSI108_I2C_SDRAM_OFFSET;
/* Check if I2C operation is in progress */
temp = *(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + chan_offset + I2C_CNTRL2);
if (0 == (temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_WR_STATUS |
I2C_CNTRL2_START))) {
/* Set device address and operation (read = 0) */
temp = (byte_addr << 16) | ((chip_addr & 0x07) << 8) |
((chip_addr >> 3) & 0x0F);
*(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + chan_offset + I2C_CNTRL1) =
temp;
/* Issue the read command
* (at this moment all other parameters are 0
* (size = 1 byte, lane = 0)
*/
*(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + chan_offset + I2C_CNTRL2) =
(I2C_CNTRL2_START);
/* Wait until operation completed */
do {
/* Read I2C operation status */
temp = *(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + chan_offset + I2C_CNTRL2);
if (0 == (temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_START))) {
if (0 == (temp &
(I2C_CNTRL2_I2C_CFGERR |
I2C_CNTRL2_I2C_TO_ERR))
) {
op_status = TSI108_I2C_SUCCESS;
temp = *(u32 *) (CONFIG_SYS_TSI108_CSR_BASE +
chan_offset +
I2C_RD_DATA);
*buffer = (u8) (temp & 0xFF);
} else {
/* report HW error */
op_status = TSI108_I2C_IF_ERROR;
DPRINT (("I2C HW error reported: 0x%02x\n", temp));
}
break;
}
} while (to_count--);
} else {
op_status = TSI108_I2C_IF_BUSY;
DPRINT (("I2C Transaction start failed: 0x%02x\n", temp));
}
DPRINT (("I2C read_byte() status: 0x%02x\n", op_status));
return op_status;
}
/*
* I2C Read interface as defined in "include/i2c.h" :
* chip_addr: I2C chip address, range 0..127
* (to read from SPD channel EEPROM use (0xD0 ... 0xD7)
* NOTE: The bit 7 in the chip_addr serves as a channel select.
* This hack is for enabling "i2c sdram" command on Tsi108 boards
* without changes to common code. Used for I2C reads only.
* byte_addr: Memory or register address within the chip
* alen: Number of bytes to use for addr (typically 1, 2 for larger
* memories, 0 for register type devices with only one
* register)
* buffer: Pointer to destination buffer for data to be read
* len: How many bytes to read
*
* Returns: 0 on success, not 0 on failure
*/
int i2c_read (uchar chip_addr, uint byte_addr, int alen,
uchar * buffer, int len)
{
u32 op_status = TSI108_I2C_PARAM_ERR;
u32 i2c_if = 0;
/* Hack to support second (SPD) I2C controller (SPD EEPROM read only).*/
if (0xD0 == (chip_addr & ~0x07)) {
i2c_if = 1;
chip_addr &= 0x7F;
}
/* Check for valid I2C address */
if (chip_addr <= 0x7F && (byte_addr + len) <= (0x01 << (alen * 8))) {
while (len--) {
op_status = i2c_read_byte(i2c_if, chip_addr, byte_addr++, buffer++);
if (TSI108_I2C_SUCCESS != op_status) {
DPRINT (("I2C read_byte() failed: 0x%02x (%d left)\n", op_status, len));
break;
}
}
}
DPRINT (("I2C read() status: 0x%02x\n", op_status));
return op_status;
}
/* I2C write helper function */
static int i2c_write_byte (uchar chip_addr,/* I2C device address on the bus */
uint byte_addr, /* Byte address within I2C device */
uchar * buffer /* pointer to data buffer */
)
{
u32 temp;
u32 to_count = I2C_DELAY;
u32 op_status = TSI108_I2C_TIMEOUT_ERR;
/* Check if I2C operation is in progress */
temp = *(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_I2C_OFFSET + I2C_CNTRL2);
if (0 == (temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START))) {
/* Place data into the I2C Tx Register */
*(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_I2C_OFFSET +
I2C_TX_DATA) = (u32) * buffer;
/* Set device address and operation */
temp =
I2C_CNTRL1_I2CWRITE | (byte_addr << 16) |
((chip_addr & 0x07) << 8) | ((chip_addr >> 3) & 0x0F);
*(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_I2C_OFFSET +
I2C_CNTRL1) = temp;
/* Issue the write command (at this moment all other parameters
* are 0 (size = 1 byte, lane = 0)
*/
*(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_I2C_OFFSET +
I2C_CNTRL2) = (I2C_CNTRL2_START);
op_status = TSI108_I2C_TIMEOUT_ERR;
/* Wait until operation completed */
do {
/* Read I2C operation status */
temp = *(u32 *) (CONFIG_SYS_TSI108_CSR_BASE + TSI108_I2C_OFFSET + I2C_CNTRL2);
if (0 == (temp & (I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START))) {
if (0 == (temp &
(I2C_CNTRL2_I2C_CFGERR |
I2C_CNTRL2_I2C_TO_ERR))) {
op_status = TSI108_I2C_SUCCESS;
} else {
/* report detected HW error */
op_status = TSI108_I2C_IF_ERROR;
DPRINT (("I2C HW error reported: 0x%02x\n", temp));
}
break;
}
} while (to_count--);
} else {
op_status = TSI108_I2C_IF_BUSY;
DPRINT (("I2C Transaction start failed: 0x%02x\n", temp));
}
return op_status;
}
/*
* I2C Write interface as defined in "include/i2c.h" :
* chip_addr: I2C chip address, range 0..127
* byte_addr: Memory or register address within the chip
* alen: Number of bytes to use for addr (typically 1, 2 for larger
* memories, 0 for register type devices with only one
* register)
* buffer: Pointer to data to be written
* len: How many bytes to write
*
* Returns: 0 on success, not 0 on failure
*/
int i2c_write (uchar chip_addr, uint byte_addr, int alen, uchar * buffer,
int len)
{
u32 op_status = TSI108_I2C_PARAM_ERR;
/* Check for valid I2C address */
if (chip_addr <= 0x7F && (byte_addr + len) <= (0x01 << (alen * 8))) {
while (len--) {
op_status =
i2c_write_byte (chip_addr, byte_addr++, buffer++);
if (TSI108_I2C_SUCCESS != op_status) {
DPRINT (("I2C write_byte() failed: 0x%02x (%d left)\n", op_status, len));
break;
}
}
}
return op_status;
}
/*
* I2C interface function as defined in "include/i2c.h".
* Probe the given I2C chip address by reading single byte from offset 0.
* Returns 0 if a chip responded, not 0 on failure.
*/
int i2c_probe (uchar chip)
{
u32 tmp;
/*
* Try to read the first location of the chip.
* The Tsi108 HW doesn't support sending just the chip address
* and checkong for an <ACK> back.
*/
return i2c_read (chip, 0, 1, (uchar *)&tmp, 1);
}
#endif

207
include/tsi108.h
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@ -1,207 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*****************************************************************************
* (C) Copyright 2003; Tundra Semiconductor Corp.
* (C) Copyright 2006; Freescale Semiconductor Corp.
*****************************************************************************/
/*
* FILENAME: tsi108.h
*
* Originator: Alex Bounine
*
* DESCRIPTION:
* Common definitions for the Tundra Tsi108 bridge chip
*
*/
#ifndef _TSI108_H_
#define _TSI108_H_
#define TSI108_HLP_REG_OFFSET (0x0000)
#define TSI108_PCI_REG_OFFSET (0x1000)
#define TSI108_CLK_REG_OFFSET (0x2000)
#define TSI108_PB_REG_OFFSET (0x3000)
#define TSI108_SD_REG_OFFSET (0x4000)
#define TSI108_MPIC_REG_OFFSET (0x7400)
#define PB_ID (0x000)
#define PB_RSR (0x004)
#define PB_BUS_MS_SELECT (0x008)
#define PB_ISR (0x00C)
#define PB_ARB_CTRL (0x018)
#define PB_PVT_CTRL2 (0x034)
#define PB_SCR (0x400)
#define PB_ERRCS (0x404)
#define PB_AERR (0x408)
#define PB_REG_BAR (0x410)
#define PB_OCN_BAR1 (0x414)
#define PB_OCN_BAR2 (0x418)
#define PB_SDRAM_BAR1 (0x41C)
#define PB_SDRAM_BAR2 (0x420)
#define PB_MCR (0xC00)
#define PB_MCMD (0xC04)
#define HLP_B0_ADDR (0x000)
#define HLP_B1_ADDR (0x010)
#define HLP_B2_ADDR (0x020)
#define HLP_B3_ADDR (0x030)
#define HLP_B0_MASK (0x004)
#define HLP_B1_MASK (0x014)
#define HLP_B2_MASK (0x024)
#define HLP_B3_MASK (0x034)
#define HLP_B0_CTRL0 (0x008)
#define HLP_B1_CTRL0 (0x018)
#define HLP_B2_CTRL0 (0x028)
#define HLP_B3_CTRL0 (0x038)
#define HLP_B0_CTRL1 (0x00C)
#define HLP_B1_CTRL1 (0x01C)
#define HLP_B2_CTRL1 (0x02C)
#define HLP_B3_CTRL1 (0x03C)
#define PCI_CSR (0x004)
#define PCI_P2O_BAR0 (0x010)
#define PCI_P2O_BAR0_UPPER (0x014)
#define PCI_P2O_BAR2 (0x018)
#define PCI_P2O_BAR2_UPPER (0x01C)
#define PCI_P2O_BAR3 (0x020)
#define PCI_P2O_BAR3_UPPER (0x024)
#define PCI_MISC_CSR (0x040)
#define PCI_P2O_PAGE_SIZES (0x04C)
#define PCI_PCIX_STAT (0x0F4)
#define PCI_IRP_STAT (0x184)
#define PCI_PFAB_BAR0 (0x204)
#define PCI_PFAB_BAR0_UPPER (0x208)
#define PCI_PFAB_IO (0x20C)
#define PCI_PFAB_IO_UPPER (0x210)
#define PCI_PFAB_MEM32 (0x214)
#define PCI_PFAB_MEM32_REMAP (0x218)
#define PCI_PFAB_MEM32_MASK (0x21C)
#define CG_PLL0_CTRL0 (0x210)
#define CG_PLL0_CTRL1 (0x214)
#define CG_PLL1_CTRL0 (0x220)
#define CG_PLL1_CTRL1 (0x224)
#define CG_PWRUP_STATUS (0x234)
#define MPIC_CSR(n) (0x30C + (n * 0x40))
#define SD_CTRL (0x000)
#define SD_STATUS (0x004)
#define SD_TIMING (0x008)
#define SD_REFRESH (0x00C)
#define SD_INT_STATUS (0x010)
#define SD_INT_ENABLE (0x014)
#define SD_INT_SET (0x018)
#define SD_D0_CTRL (0x020)
#define SD_D1_CTRL (0x024)
#define SD_D0_BAR (0x028)
#define SD_D1_BAR (0x02C)
#define SD_ECC_CTRL (0x040)
#define SD_DLL_STATUS (0x250)
#define TS_SD_CTRL_ENABLE (1 << 31)
#define PB_ERRCS_ES (1 << 1)
#define PB_ISR_PBS_RD_ERR (1 << 8)
#define PCI_IRP_STAT_P_CSR (1 << 23)
/*
* I2C : Register address offset definitions
*/
#define I2C_CNTRL1 (0x00000000)
#define I2C_CNTRL2 (0x00000004)
#define I2C_RD_DATA (0x00000008)
#define I2C_TX_DATA (0x0000000c)
/*
* I2C : Register Bit Masks and Reset Values
* definitions for every register
*/
/* I2C_CNTRL1 : Reset Value */
#define I2C_CNTRL1_RESET_VALUE (0x0000000a)
/* I2C_CNTRL1 : Register Bits Masks Definitions */
#define I2C_CNTRL1_DEVCODE (0x0000000f)
#define I2C_CNTRL1_PAGE (0x00000700)
#define I2C_CNTRL1_BYTADDR (0x00ff0000)
#define I2C_CNTRL1_I2CWRITE (0x01000000)
/* I2C_CNTRL1 : Read/Write Bit Mask Definition */
#define I2C_CNTRL1_RWMASK (0x01ff070f)
/* I2C_CNTRL1 : Unused/Reserved bits Definition */
#define I2C_CNTRL1_RESERVED (0xfe00f8f0)
/* I2C_CNTRL2 : Reset Value */
#define I2C_CNTRL2_RESET_VALUE (0x00000000)
/* I2C_CNTRL2 : Register Bits Masks Definitions */
#define I2C_CNTRL2_SIZE (0x00000003)
#define I2C_CNTRL2_LANE (0x0000000c)
#define I2C_CNTRL2_MULTIBYTE (0x00000010)
#define I2C_CNTRL2_START (0x00000100)
#define I2C_CNTRL2_WR_STATUS (0x00010000)
#define I2C_CNTRL2_RD_STATUS (0x00020000)
#define I2C_CNTRL2_I2C_TO_ERR (0x04000000)
#define I2C_CNTRL2_I2C_CFGERR (0x08000000)
#define I2C_CNTRL2_I2C_CMPLT (0x10000000)
/* I2C_CNTRL2 : Read/Write Bit Mask Definition */
#define I2C_CNTRL2_RWMASK (0x0000011f)
/* I2C_CNTRL2 : Unused/Reserved bits Definition */
#define I2C_CNTRL2_RESERVED (0xe3fcfee0)
/* I2C_RD_DATA : Reset Value */
#define I2C_RD_DATA_RESET_VALUE (0x00000000)
/* I2C_RD_DATA : Register Bits Masks Definitions */
#define I2C_RD_DATA_RBYTE0 (0x000000ff)
#define I2C_RD_DATA_RBYTE1 (0x0000ff00)
#define I2C_RD_DATA_RBYTE2 (0x00ff0000)
#define I2C_RD_DATA_RBYTE3 (0xff000000)
/* I2C_RD_DATA : Read/Write Bit Mask Definition */
#define I2C_RD_DATA_RWMASK (0x00000000)
/* I2C_RD_DATA : Unused/Reserved bits Definition */
#define I2C_RD_DATA_RESERVED (0x00000000)
/* I2C_TX_DATA : Reset Value */
#define I2C_TX_DATA_RESET_VALUE (0x00000000)
/* I2C_TX_DATA : Register Bits Masks Definitions */
#define I2C_TX_DATA_TBYTE0 (0x000000ff)
#define I2C_TX_DATA_TBYTE1 (0x0000ff00)
#define I2C_TX_DATA_TBYTE2 (0x00ff0000)
#define I2C_TX_DATA_TBYTE3 (0xff000000)
/* I2C_TX_DATA : Read/Write Bit Mask Definition */
#define I2C_TX_DATA_RWMASK (0xffffffff)
/* I2C_TX_DATA : Unused/Reserved bits Definition */
#define I2C_TX_DATA_RESERVED (0x00000000)
#define TSI108_I2C_OFFSET 0x7000 /* offset for general use I2C channel */
#define TSI108_I2C_SDRAM_OFFSET 0x4400 /* offset for SPD I2C channel */
#define I2C_EEPROM_DEVCODE 0xA /* standard I2C EEPROM device code */
/* I2C status codes */
#define TSI108_I2C_SUCCESS 0
#define TSI108_I2C_PARAM_ERR 1
#define TSI108_I2C_TIMEOUT_ERR 2
#define TSI108_I2C_IF_BUSY 3
#define TSI108_I2C_IF_ERROR 4
#endif /* _TSI108_H_ */