mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
6b0b594bb8
This patch makes numerous miscellaneous code improvements to the QE library.
1. Remove struct ucc_common and merge ucc_init_guemr() into ucc_set_type()
(every caller of ucc_init_guemr() also calls ucc_set_type()). Modify all
callers of ucc_set_type() accordingly.
2. Remove the unused enum ucc_pram_initial_offset.
3. Refactor qe_setbrg(), also implement work-around for errata QE_General4.
4. Several printk() calls were missing the terminating \n.
5. Add __iomem where needed, and change u16 to __be16 and u32 to __be32 where
appropriate.
6. In ucc_slow_init() the RBASE and TBASE registers in the PRAM were programmed
with the wrong value.
7. Add the protocol type to struct us_info and updated ucc_slow_init() to
use it, instead of always programming QE_CR_PROTOCOL_UNSPECIFIED.
8. Rename ucc_slow_restart_x() to ucc_slow_restart_tx()
9. Add several macros in qe.h (mostly for slow UCC support, but also to
standardize some naming convention) and remove several unused macros.
10. Update ucc_geth.c to use the new macros.
11. Add ucc_slow_info.protocol to specify which QE_CR_PROTOCOL_xxx protcol
to use when initializing the UCC in ucc_slow_init().
12. Rename ucc_slow_pram.rfcr to rbmr and ucc_slow_pram.tfcr to tbmr, since
these are the real names of the registers.
13. Use the setbits, clrbits, and clrsetbits where appropriate.
14. Refactor ucc_set_qe_mux_rxtx().
15. Remove all instances of 'volatile'.
16. Simplify get_cmxucr_reg();
17. Replace qe_mux.cmxucrX with qe_mux.cmxucr[].
18. Updated struct ucc_geth because struct ucc_fast is not padded any more.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved.
|
|
*
|
|
* Authors: Shlomi Gridish <gridish@freescale.com>
|
|
* Li Yang <leoli@freescale.com>
|
|
*
|
|
* Description:
|
|
* Internal header file for UCC unit routines.
|
|
*
|
|
* 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; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*/
|
|
#ifndef __UCC_H__
|
|
#define __UCC_H__
|
|
|
|
#include <asm/immap_qe.h>
|
|
#include <asm/qe.h>
|
|
|
|
#define STATISTICS
|
|
|
|
#define UCC_MAX_NUM 8
|
|
|
|
/* Slow or fast type for UCCs.
|
|
*/
|
|
enum ucc_speed_type {
|
|
UCC_SPEED_TYPE_FAST = UCC_GUEMR_MODE_FAST_RX | UCC_GUEMR_MODE_FAST_TX,
|
|
UCC_SPEED_TYPE_SLOW = UCC_GUEMR_MODE_SLOW_RX | UCC_GUEMR_MODE_SLOW_TX
|
|
};
|
|
|
|
/* ucc_set_type
|
|
* Sets UCC to slow or fast mode.
|
|
*
|
|
* ucc_num - (In) number of UCC (0-7).
|
|
* speed - (In) slow or fast mode for UCC.
|
|
*/
|
|
int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed);
|
|
|
|
int ucc_set_qe_mux_mii_mng(unsigned int ucc_num);
|
|
|
|
int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock,
|
|
enum comm_dir mode);
|
|
|
|
int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask);
|
|
|
|
/* QE MUX clock routing for UCC
|
|
*/
|
|
static inline int ucc_set_qe_mux_grant(unsigned int ucc_num, int set)
|
|
{
|
|
return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_GRANT);
|
|
}
|
|
|
|
static inline int ucc_set_qe_mux_tsa(unsigned int ucc_num, int set)
|
|
{
|
|
return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_TSA);
|
|
}
|
|
|
|
static inline int ucc_set_qe_mux_bkpt(unsigned int ucc_num, int set)
|
|
{
|
|
return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_BKPT);
|
|
}
|
|
|
|
#endif /* __UCC_H__ */
|