diff options
Diffstat (limited to 'arch/powerpc/cpu')
-rw-r--r-- | arch/powerpc/cpu/mpc824x/drivers/i2c_export.h | 103 | ||||
-rw-r--r-- | arch/powerpc/cpu/mpc8260/speed.h | 38 |
2 files changed, 0 insertions, 141 deletions
diff --git a/arch/powerpc/cpu/mpc824x/drivers/i2c_export.h b/arch/powerpc/cpu/mpc824x/drivers/i2c_export.h deleted file mode 100644 index 6264d189bb..0000000000 --- a/arch/powerpc/cpu/mpc824x/drivers/i2c_export.h +++ /dev/null @@ -1,103 +0,0 @@ -#ifndef I2C_EXPORT_H -#define I2C_EXPORT_H - -/**************************************************** - * - * Copyright Motrola 1999 - * - ****************************************************/ - -/* These are the defined return values for the I2C_do_transaction function. - * Any non-zero value indicates failure. Failure modes can be added for - * more detailed error reporting. - */ -typedef enum _i2c_status -{ - I2C_SUCCESS = 0, - I2C_ERROR, -} I2C_Status; - -/* These are the defined tasks for I2C_do_transaction. - * Modes for SLAVE_RCV and SLAVE_XMIT will be added. - */ -typedef enum _i2c_transaction_mode -{ - I2C_MASTER_RCV = 0, - I2C_MASTER_XMIT = 1, -} I2C_TRANSACTION_MODE; - -typedef enum _i2c_interrupt_mode -{ - I2C_INT_DISABLE = 0, - I2C_INT_ENABLE = 1, -} I2C_INTERRUPT_MODE; - -typedef enum _i2c_stop -{ - I2C_NO_STOP = 0, - I2C_STOP = 1, -} I2C_STOP_MODE; - -typedef enum _i2c_restart -{ - I2C_NO_RESTART = 0, - I2C_RESTART = 1, -} I2C_RESTART_MODE; - -/******************** App. API ******************** - * The application API is for user level application - * to use the functionality provided by I2C driver. - * This is a "generic" I2C interface, it should contain - * nothing specific to the Kahlua implementation. - * Only the generic functions are exported by the library. - * - * Note: Its App.s responsibility to swap the data - * byte. In our API, we just transfer whatever - * we are given - **************************************************/ - - -/* Initialize I2C unit with the following: - * driver's slave address - * interrupt enabled - * optional pointer to application layer print function - * - * These parameters may be added: - * desired clock rate - * digital filter frequency sampling rate - * - * This function must be called before I2C unit can be used. - */ -extern I2C_Status I2C_Initialize( - unsigned char addr, /* driver's I2C slave address */ - I2C_INTERRUPT_MODE en_int, /* 1 - enable I2C interrupt - * 0 - disable I2C interrupt - */ - int (*app_print_function)(char *,...)); /* pointer to optional "printf" - * provided by application - */ - -/* Perform the given I2C transaction, only MASTER_XMIT and MASTER_RCV - * are implemented. Both are only in polling mode. - * - * en_int controls interrupt/polling mode - * act is the type of transaction - * addr is the I2C address of the slave device - * len is the length of data to send or receive - * buffer is the address of the data buffer - * stop = I2C_NO_STOP, don't signal STOP at end of transaction - * I2C_STOP, signal STOP at end of transaction - * retry is the timeout retry value, currently ignored - * rsta = I2C_NO_RESTART, this is not continuation of existing transaction - * I2C_RESTART, this is a continuation of existing transaction - */ -extern I2C_Status I2C_do_transaction( I2C_INTERRUPT_MODE en_int, - I2C_TRANSACTION_MODE act, - unsigned char i2c_addr, - unsigned char data_addr, - int len, - char *buffer, - I2C_STOP_MODE stop, - int retry, - I2C_RESTART_MODE rsta); -#endif diff --git a/arch/powerpc/cpu/mpc8260/speed.h b/arch/powerpc/cpu/mpc8260/speed.h deleted file mode 100644 index f1b10bf25e..0000000000 --- a/arch/powerpc/cpu/mpc8260/speed.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/*----------------------------------------------------------------------- - * Timer value for timer 2, ICLK = 10 - * - * SPEED_FCOUNT2 = GCLK / (16 * (TIMER_TMR_PS + 1)) - * SPEED_TMR3_PS = (GCLK / (16 * SPEED_FCOUNT3)) - 1 - * - * SPEED_FCOUNT2 timer 2 counting frequency - * GCLK CPU clock - * SPEED_TMR2_PS prescaler - */ -#define SPEED_TMR2_PS (250 - 1) /* divide by 250 */ - -/*----------------------------------------------------------------------- - * Timer value for PIT - * - * PIT_TIME = SPEED_PITC / PITRTCLK - * PITRTCLK = 8192 - */ -#define SPEED_PITC (82 << 16) /* start counting from 82 */ - -/* - * The new value for PTA is calculated from - * - * PTA = (gclk * Trefresh) / (2 ^ (2 * DFBRG) * PTP * NCS) - * - * gclk CPU clock (not bus clock !) - * Trefresh Refresh cycle * 4 (four word bursts used) - * DFBRG For normal mode (no clock reduction) always 0 - * PTP Prescaler (already adjusted for no. of banks and 4K / 8K refresh) - * NCS Number of SDRAM banks (chip selects) on this UPM. - */ |