forked from Minki/linux
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
/*
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* Copyright (C) 2006 Freescale Semicondutor, Inc. All rights reserved.
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*
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* Authors: Shlomi Gridish <gridish@freescale.com>
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* Li Yang <leoli@freescale.com>
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*
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* Description:
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* Internal header file for UCC unit routines.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __UCC_H__
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#define __UCC_H__
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#include <asm/immap_qe.h>
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#include <asm/qe.h>
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#define STATISTICS
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#define UCC_MAX_NUM 8
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/* Slow or fast type for UCCs.
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*/
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enum ucc_speed_type {
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UCC_SPEED_TYPE_FAST = UCC_GUEMR_MODE_FAST_RX | UCC_GUEMR_MODE_FAST_TX,
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UCC_SPEED_TYPE_SLOW = UCC_GUEMR_MODE_SLOW_RX | UCC_GUEMR_MODE_SLOW_TX
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};
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/* ucc_set_type
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* Sets UCC to slow or fast mode.
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*
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* ucc_num - (In) number of UCC (0-7).
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* speed - (In) slow or fast mode for UCC.
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*/
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int ucc_set_type(unsigned int ucc_num, enum ucc_speed_type speed);
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int ucc_set_qe_mux_mii_mng(unsigned int ucc_num);
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int ucc_set_qe_mux_rxtx(unsigned int ucc_num, enum qe_clock clock,
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enum comm_dir mode);
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int ucc_mux_set_grant_tsa_bkpt(unsigned int ucc_num, int set, u32 mask);
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/* QE MUX clock routing for UCC
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*/
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static inline int ucc_set_qe_mux_grant(unsigned int ucc_num, int set)
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{
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return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_GRANT);
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}
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static inline int ucc_set_qe_mux_tsa(unsigned int ucc_num, int set)
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{
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return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_TSA);
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}
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static inline int ucc_set_qe_mux_bkpt(unsigned int ucc_num, int set)
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{
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return ucc_mux_set_grant_tsa_bkpt(ucc_num, set, QE_CMXUCR_BKPT);
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}
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#endif /* __UCC_H__ */
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