467 lines
14 KiB
C
467 lines
14 KiB
C
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/*
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*
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* BRIEF MODULE DESCRIPTION
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* Include file for Alchemy Semiconductor's Au1k CPU.
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*
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* Copyright 2004 Embedded Edge, LLC
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* dan@embeddededge.com
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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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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* Specifics for the Au1xxx Programmable Serial Controllers, first
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* seen in the AU1550 part.
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*/
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#ifndef _AU1000_PSC_H_
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#define _AU1000_PSC_H_
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/*
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* The PSC select and control registers are common to all protocols.
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*/
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#define PSC_SEL_OFFSET 0x00000000
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#define PSC_CTRL_OFFSET 0x00000004
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#define PSC_SEL_CLK_MASK (3 << 4)
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#define PSC_SEL_CLK_INTCLK (0 << 4)
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#define PSC_SEL_CLK_EXTCLK (1 << 4)
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#define PSC_SEL_CLK_SERCLK (2 << 4)
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#define PSC_SEL_PS_MASK 0x00000007
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#define PSC_SEL_PS_DISABLED 0
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#define PSC_SEL_PS_SPIMODE 2
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#define PSC_SEL_PS_I2SMODE 3
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#define PSC_SEL_PS_AC97MODE 4
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#define PSC_SEL_PS_SMBUSMODE 5
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#define PSC_CTRL_DISABLE 0
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#define PSC_CTRL_SUSPEND 2
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#define PSC_CTRL_ENABLE 3
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/* AC97 Registers. */
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#define PSC_AC97CFG_OFFSET 0x00000008
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#define PSC_AC97MSK_OFFSET 0x0000000c
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#define PSC_AC97PCR_OFFSET 0x00000010
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#define PSC_AC97STAT_OFFSET 0x00000014
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#define PSC_AC97EVNT_OFFSET 0x00000018
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#define PSC_AC97TXRX_OFFSET 0x0000001c
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#define PSC_AC97CDC_OFFSET 0x00000020
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#define PSC_AC97RST_OFFSET 0x00000024
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#define PSC_AC97GPO_OFFSET 0x00000028
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#define PSC_AC97GPI_OFFSET 0x0000002c
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/* AC97 Config Register. */
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#define PSC_AC97CFG_RT_MASK (3 << 30)
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#define PSC_AC97CFG_RT_FIFO1 (0 << 30)
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#define PSC_AC97CFG_RT_FIFO2 (1 << 30)
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#define PSC_AC97CFG_RT_FIFO4 (2 << 30)
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#define PSC_AC97CFG_RT_FIFO8 (3 << 30)
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#define PSC_AC97CFG_TT_MASK (3 << 28)
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#define PSC_AC97CFG_TT_FIFO1 (0 << 28)
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#define PSC_AC97CFG_TT_FIFO2 (1 << 28)
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#define PSC_AC97CFG_TT_FIFO4 (2 << 28)
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#define PSC_AC97CFG_TT_FIFO8 (3 << 28)
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#define PSC_AC97CFG_DD_DISABLE (1 << 27)
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#define PSC_AC97CFG_DE_ENABLE (1 << 26)
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#define PSC_AC97CFG_SE_ENABLE (1 << 25)
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#define PSC_AC97CFG_LEN_MASK (0xf << 21)
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#define PSC_AC97CFG_TXSLOT_MASK (0x3ff << 11)
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#define PSC_AC97CFG_RXSLOT_MASK (0x3ff << 1)
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#define PSC_AC97CFG_GE_ENABLE (1)
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/* Enable slots 3-12. */
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#define PSC_AC97CFG_TXSLOT_ENA(x) (1 << (((x) - 3) + 11))
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#define PSC_AC97CFG_RXSLOT_ENA(x) (1 << (((x) - 3) + 1))
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/*
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* The word length equation is ((x) * 2) + 2, so choose 'x' appropriately.
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* The only sensible numbers are 7, 9, or possibly 11. Nah, just do the
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* arithmetic in the macro.
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*/
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#define PSC_AC97CFG_SET_LEN(x) (((((x) - 2) / 2) & 0xf) << 21)
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#define PSC_AC97CFG_GET_LEN(x) (((((x) >> 21) & 0xf) * 2) + 2)
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/* AC97 Mask Register. */
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#define PSC_AC97MSK_GR (1 << 25)
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#define PSC_AC97MSK_CD (1 << 24)
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#define PSC_AC97MSK_RR (1 << 13)
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#define PSC_AC97MSK_RO (1 << 12)
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#define PSC_AC97MSK_RU (1 << 11)
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#define PSC_AC97MSK_TR (1 << 10)
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#define PSC_AC97MSK_TO (1 << 9)
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#define PSC_AC97MSK_TU (1 << 8)
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#define PSC_AC97MSK_RD (1 << 5)
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#define PSC_AC97MSK_TD (1 << 4)
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#define PSC_AC97MSK_ALLMASK (PSC_AC97MSK_GR | PSC_AC97MSK_CD | \
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PSC_AC97MSK_RR | PSC_AC97MSK_RO | \
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PSC_AC97MSK_RU | PSC_AC97MSK_TR | \
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PSC_AC97MSK_TO | PSC_AC97MSK_TU | \
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PSC_AC97MSK_RD | PSC_AC97MSK_TD)
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/* AC97 Protocol Control Register. */
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#define PSC_AC97PCR_RC (1 << 6)
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#define PSC_AC97PCR_RP (1 << 5)
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#define PSC_AC97PCR_RS (1 << 4)
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#define PSC_AC97PCR_TC (1 << 2)
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#define PSC_AC97PCR_TP (1 << 1)
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#define PSC_AC97PCR_TS (1 << 0)
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/* AC97 Status register (read only). */
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#define PSC_AC97STAT_CB (1 << 26)
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#define PSC_AC97STAT_CP (1 << 25)
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#define PSC_AC97STAT_CR (1 << 24)
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#define PSC_AC97STAT_RF (1 << 13)
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#define PSC_AC97STAT_RE (1 << 12)
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#define PSC_AC97STAT_RR (1 << 11)
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#define PSC_AC97STAT_TF (1 << 10)
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#define PSC_AC97STAT_TE (1 << 9)
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#define PSC_AC97STAT_TR (1 << 8)
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#define PSC_AC97STAT_RB (1 << 5)
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#define PSC_AC97STAT_TB (1 << 4)
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#define PSC_AC97STAT_DI (1 << 2)
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#define PSC_AC97STAT_DR (1 << 1)
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#define PSC_AC97STAT_SR (1 << 0)
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/* AC97 Event Register. */
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#define PSC_AC97EVNT_GR (1 << 25)
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#define PSC_AC97EVNT_CD (1 << 24)
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#define PSC_AC97EVNT_RR (1 << 13)
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#define PSC_AC97EVNT_RO (1 << 12)
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#define PSC_AC97EVNT_RU (1 << 11)
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#define PSC_AC97EVNT_TR (1 << 10)
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#define PSC_AC97EVNT_TO (1 << 9)
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#define PSC_AC97EVNT_TU (1 << 8)
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#define PSC_AC97EVNT_RD (1 << 5)
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#define PSC_AC97EVNT_TD (1 << 4)
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/* CODEC Command Register. */
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#define PSC_AC97CDC_RD (1 << 25)
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#define PSC_AC97CDC_ID_MASK (3 << 23)
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#define PSC_AC97CDC_INDX_MASK (0x7f << 16)
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#define PSC_AC97CDC_ID(x) (((x) & 0x03) << 23)
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#define PSC_AC97CDC_INDX(x) (((x) & 0x7f) << 16)
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/* AC97 Reset Control Register. */
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#define PSC_AC97RST_RST (1 << 1)
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#define PSC_AC97RST_SNC (1 << 0)
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/* PSC in I2S Mode. */
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typedef struct psc_i2s {
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u32 psc_sel;
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u32 psc_ctrl;
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u32 psc_i2scfg;
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u32 psc_i2smsk;
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u32 psc_i2spcr;
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u32 psc_i2sstat;
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u32 psc_i2sevent;
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u32 psc_i2stxrx;
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u32 psc_i2sudf;
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} psc_i2s_t;
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#define PSC_I2SCFG_OFFSET 0x08
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#define PSC_I2SMASK_OFFSET 0x0C
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#define PSC_I2SPCR_OFFSET 0x10
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#define PSC_I2SSTAT_OFFSET 0x14
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#define PSC_I2SEVENT_OFFSET 0x18
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#define PSC_I2SRXTX_OFFSET 0x1C
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#define PSC_I2SUDF_OFFSET 0x20
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/* I2S Config Register. */
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#define PSC_I2SCFG_RT_MASK (3 << 30)
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#define PSC_I2SCFG_RT_FIFO1 (0 << 30)
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#define PSC_I2SCFG_RT_FIFO2 (1 << 30)
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#define PSC_I2SCFG_RT_FIFO4 (2 << 30)
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#define PSC_I2SCFG_RT_FIFO8 (3 << 30)
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#define PSC_I2SCFG_TT_MASK (3 << 28)
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#define PSC_I2SCFG_TT_FIFO1 (0 << 28)
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#define PSC_I2SCFG_TT_FIFO2 (1 << 28)
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#define PSC_I2SCFG_TT_FIFO4 (2 << 28)
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#define PSC_I2SCFG_TT_FIFO8 (3 << 28)
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#define PSC_I2SCFG_DD_DISABLE (1 << 27)
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#define PSC_I2SCFG_DE_ENABLE (1 << 26)
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#define PSC_I2SCFG_SET_WS(x) (((((x) / 2) - 1) & 0x7f) << 16)
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#define PSC_I2SCFG_WS(n) ((n & 0xFF) << 16)
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#define PSC_I2SCFG_WS_MASK (PSC_I2SCFG_WS(0x3F))
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#define PSC_I2SCFG_WI (1 << 15)
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#define PSC_I2SCFG_DIV_MASK (3 << 13)
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#define PSC_I2SCFG_DIV2 (0 << 13)
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#define PSC_I2SCFG_DIV4 (1 << 13)
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#define PSC_I2SCFG_DIV8 (2 << 13)
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#define PSC_I2SCFG_DIV16 (3 << 13)
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#define PSC_I2SCFG_BI (1 << 12)
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#define PSC_I2SCFG_BUF (1 << 11)
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#define PSC_I2SCFG_MLJ (1 << 10)
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#define PSC_I2SCFG_XM (1 << 9)
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/* The word length equation is simply LEN+1. */
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#define PSC_I2SCFG_SET_LEN(x) ((((x) - 1) & 0x1f) << 4)
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#define PSC_I2SCFG_GET_LEN(x) ((((x) >> 4) & 0x1f) + 1)
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#define PSC_I2SCFG_LB (1 << 2)
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#define PSC_I2SCFG_MLF (1 << 1)
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#define PSC_I2SCFG_MS (1 << 0)
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/* I2S Mask Register. */
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#define PSC_I2SMSK_RR (1 << 13)
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#define PSC_I2SMSK_RO (1 << 12)
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#define PSC_I2SMSK_RU (1 << 11)
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#define PSC_I2SMSK_TR (1 << 10)
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#define PSC_I2SMSK_TO (1 << 9)
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#define PSC_I2SMSK_TU (1 << 8)
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#define PSC_I2SMSK_RD (1 << 5)
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#define PSC_I2SMSK_TD (1 << 4)
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#define PSC_I2SMSK_ALLMASK (PSC_I2SMSK_RR | PSC_I2SMSK_RO | \
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PSC_I2SMSK_RU | PSC_I2SMSK_TR | \
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PSC_I2SMSK_TO | PSC_I2SMSK_TU | \
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PSC_I2SMSK_RD | PSC_I2SMSK_TD)
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/* I2S Protocol Control Register. */
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#define PSC_I2SPCR_RC (1 << 6)
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#define PSC_I2SPCR_RP (1 << 5)
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#define PSC_I2SPCR_RS (1 << 4)
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#define PSC_I2SPCR_TC (1 << 2)
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#define PSC_I2SPCR_TP (1 << 1)
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#define PSC_I2SPCR_TS (1 << 0)
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/* I2S Status register (read only). */
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#define PSC_I2SSTAT_RF (1 << 13)
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#define PSC_I2SSTAT_RE (1 << 12)
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#define PSC_I2SSTAT_RR (1 << 11)
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#define PSC_I2SSTAT_TF (1 << 10)
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#define PSC_I2SSTAT_TE (1 << 9)
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#define PSC_I2SSTAT_TR (1 << 8)
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#define PSC_I2SSTAT_RB (1 << 5)
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#define PSC_I2SSTAT_TB (1 << 4)
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#define PSC_I2SSTAT_DI (1 << 2)
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#define PSC_I2SSTAT_DR (1 << 1)
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#define PSC_I2SSTAT_SR (1 << 0)
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/* I2S Event Register. */
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#define PSC_I2SEVNT_RR (1 << 13)
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#define PSC_I2SEVNT_RO (1 << 12)
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#define PSC_I2SEVNT_RU (1 << 11)
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#define PSC_I2SEVNT_TR (1 << 10)
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#define PSC_I2SEVNT_TO (1 << 9)
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#define PSC_I2SEVNT_TU (1 << 8)
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#define PSC_I2SEVNT_RD (1 << 5)
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#define PSC_I2SEVNT_TD (1 << 4)
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/* PSC in SPI Mode. */
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typedef struct psc_spi {
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u32 psc_sel;
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u32 psc_ctrl;
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u32 psc_spicfg;
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u32 psc_spimsk;
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u32 psc_spipcr;
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u32 psc_spistat;
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u32 psc_spievent;
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u32 psc_spitxrx;
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} psc_spi_t;
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/* SPI Config Register. */
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#define PSC_SPICFG_RT_MASK (3 << 30)
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#define PSC_SPICFG_RT_FIFO1 (0 << 30)
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#define PSC_SPICFG_RT_FIFO2 (1 << 30)
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#define PSC_SPICFG_RT_FIFO4 (2 << 30)
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#define PSC_SPICFG_RT_FIFO8 (3 << 30)
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#define PSC_SPICFG_TT_MASK (3 << 28)
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#define PSC_SPICFG_TT_FIFO1 (0 << 28)
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#define PSC_SPICFG_TT_FIFO2 (1 << 28)
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#define PSC_SPICFG_TT_FIFO4 (2 << 28)
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#define PSC_SPICFG_TT_FIFO8 (3 << 28)
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#define PSC_SPICFG_DD_DISABLE (1 << 27)
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#define PSC_SPICFG_DE_ENABLE (1 << 26)
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#define PSC_SPICFG_CLR_BAUD(x) ((x) & ~((0x3f) << 15))
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#define PSC_SPICFG_SET_BAUD(x) (((x) & 0x3f) << 15)
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#define PSC_SPICFG_SET_DIV(x) (((x) & 0x03) << 13)
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#define PSC_SPICFG_DIV2 0
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#define PSC_SPICFG_DIV4 1
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#define PSC_SPICFG_DIV8 2
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#define PSC_SPICFG_DIV16 3
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#define PSC_SPICFG_BI (1 << 12)
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#define PSC_SPICFG_PSE (1 << 11)
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#define PSC_SPICFG_CGE (1 << 10)
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#define PSC_SPICFG_CDE (1 << 9)
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#define PSC_SPICFG_CLR_LEN(x) ((x) & ~((0x1f) << 4))
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#define PSC_SPICFG_SET_LEN(x) (((x-1) & 0x1f) << 4)
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#define PSC_SPICFG_LB (1 << 3)
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#define PSC_SPICFG_MLF (1 << 1)
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#define PSC_SPICFG_MO (1 << 0)
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/* SPI Mask Register. */
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#define PSC_SPIMSK_MM (1 << 16)
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#define PSC_SPIMSK_RR (1 << 13)
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#define PSC_SPIMSK_RO (1 << 12)
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#define PSC_SPIMSK_RU (1 << 11)
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#define PSC_SPIMSK_TR (1 << 10)
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#define PSC_SPIMSK_TO (1 << 9)
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#define PSC_SPIMSK_TU (1 << 8)
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#define PSC_SPIMSK_SD (1 << 5)
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#define PSC_SPIMSK_MD (1 << 4)
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#define PSC_SPIMSK_ALLMASK (PSC_SPIMSK_MM | PSC_SPIMSK_RR | \
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PSC_SPIMSK_RO | PSC_SPIMSK_TO | \
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PSC_SPIMSK_TU | PSC_SPIMSK_SD | \
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PSC_SPIMSK_MD)
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/* SPI Protocol Control Register. */
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#define PSC_SPIPCR_RC (1 << 6)
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#define PSC_SPIPCR_SP (1 << 5)
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#define PSC_SPIPCR_SS (1 << 4)
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#define PSC_SPIPCR_TC (1 << 2)
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#define PSC_SPIPCR_MS (1 << 0)
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/* SPI Status register (read only). */
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#define PSC_SPISTAT_RF (1 << 13)
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#define PSC_SPISTAT_RE (1 << 12)
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#define PSC_SPISTAT_RR (1 << 11)
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#define PSC_SPISTAT_TF (1 << 10)
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#define PSC_SPISTAT_TE (1 << 9)
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#define PSC_SPISTAT_TR (1 << 8)
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#define PSC_SPISTAT_SB (1 << 5)
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#define PSC_SPISTAT_MB (1 << 4)
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#define PSC_SPISTAT_DI (1 << 2)
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#define PSC_SPISTAT_DR (1 << 1)
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#define PSC_SPISTAT_SR (1 << 0)
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/* SPI Event Register. */
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#define PSC_SPIEVNT_MM (1 << 16)
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#define PSC_SPIEVNT_RR (1 << 13)
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#define PSC_SPIEVNT_RO (1 << 12)
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#define PSC_SPIEVNT_RU (1 << 11)
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#define PSC_SPIEVNT_TR (1 << 10)
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#define PSC_SPIEVNT_TO (1 << 9)
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#define PSC_SPIEVNT_TU (1 << 8)
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#define PSC_SPIEVNT_SD (1 << 5)
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#define PSC_SPIEVNT_MD (1 << 4)
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/* Transmit register control. */
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#define PSC_SPITXRX_LC (1 << 29)
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#define PSC_SPITXRX_SR (1 << 28)
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/* SMBus Config Register. */
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#define PSC_SMBCFG_RT_MASK (3 << 30)
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#define PSC_SMBCFG_RT_FIFO1 (0 << 30)
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#define PSC_SMBCFG_RT_FIFO2 (1 << 30)
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#define PSC_SMBCFG_RT_FIFO4 (2 << 30)
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#define PSC_SMBCFG_RT_FIFO8 (3 << 30)
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#define PSC_SMBCFG_TT_MASK (3 << 28)
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#define PSC_SMBCFG_TT_FIFO1 (0 << 28)
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#define PSC_SMBCFG_TT_FIFO2 (1 << 28)
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#define PSC_SMBCFG_TT_FIFO4 (2 << 28)
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#define PSC_SMBCFG_TT_FIFO8 (3 << 28)
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#define PSC_SMBCFG_DD_DISABLE (1 << 27)
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#define PSC_SMBCFG_DE_ENABLE (1 << 26)
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#define PSC_SMBCFG_SET_DIV(x) (((x) & 0x03) << 13)
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#define PSC_SMBCFG_DIV2 0
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#define PSC_SMBCFG_DIV4 1
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#define PSC_SMBCFG_DIV8 2
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#define PSC_SMBCFG_DIV16 3
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#define PSC_SMBCFG_GCE (1 << 9)
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#define PSC_SMBCFG_SFM (1 << 8)
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#define PSC_SMBCFG_SET_SLV(x) (((x) & 0x7f) << 1)
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/* SMBus Mask Register. */
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#define PSC_SMBMSK_DN (1 << 30)
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#define PSC_SMBMSK_AN (1 << 29)
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#define PSC_SMBMSK_AL (1 << 28)
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#define PSC_SMBMSK_RR (1 << 13)
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#define PSC_SMBMSK_RO (1 << 12)
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#define PSC_SMBMSK_RU (1 << 11)
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#define PSC_SMBMSK_TR (1 << 10)
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#define PSC_SMBMSK_TO (1 << 9)
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#define PSC_SMBMSK_TU (1 << 8)
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#define PSC_SMBMSK_SD (1 << 5)
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#define PSC_SMBMSK_MD (1 << 4)
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#define PSC_SMBMSK_ALLMASK (PSC_SMBMSK_DN | PSC_SMBMSK_AN | \
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PSC_SMBMSK_AL | PSC_SMBMSK_RR | \
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PSC_SMBMSK_RO | PSC_SMBMSK_TO | \
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PSC_SMBMSK_TU | PSC_SMBMSK_SD | \
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PSC_SMBMSK_MD)
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/* SMBus Protocol Control Register. */
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#define PSC_SMBPCR_DC (1 << 2)
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#define PSC_SMBPCR_MS (1 << 0)
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/* SMBus Status register (read only). */
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#define PSC_SMBSTAT_BB (1 << 28)
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#define PSC_SMBSTAT_RF (1 << 13)
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#define PSC_SMBSTAT_RE (1 << 12)
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#define PSC_SMBSTAT_RR (1 << 11)
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#define PSC_SMBSTAT_TF (1 << 10)
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#define PSC_SMBSTAT_TE (1 << 9)
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#define PSC_SMBSTAT_TR (1 << 8)
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#define PSC_SMBSTAT_SB (1 << 5)
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#define PSC_SMBSTAT_MB (1 << 4)
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#define PSC_SMBSTAT_DI (1 << 2)
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#define PSC_SMBSTAT_DR (1 << 1)
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#define PSC_SMBSTAT_SR (1 << 0)
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/* SMBus Event Register. */
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#define PSC_SMBEVNT_DN (1 << 30)
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#define PSC_SMBEVNT_AN (1 << 29)
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#define PSC_SMBEVNT_AL (1 << 28)
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#define PSC_SMBEVNT_RR (1 << 13)
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#define PSC_SMBEVNT_RO (1 << 12)
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#define PSC_SMBEVNT_RU (1 << 11)
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#define PSC_SMBEVNT_TR (1 << 10)
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#define PSC_SMBEVNT_TO (1 << 9)
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#define PSC_SMBEVNT_TU (1 << 8)
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#define PSC_SMBEVNT_SD (1 << 5)
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#define PSC_SMBEVNT_MD (1 << 4)
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#define PSC_SMBEVNT_ALLCLR (PSC_SMBEVNT_DN | PSC_SMBEVNT_AN | \
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PSC_SMBEVNT_AL | PSC_SMBEVNT_RR | \
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PSC_SMBEVNT_RO | PSC_SMBEVNT_TO | \
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PSC_SMBEVNT_TU | PSC_SMBEVNT_SD | \
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PSC_SMBEVNT_MD)
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/* Transmit register control. */
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#define PSC_SMBTXRX_RSR (1 << 28)
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#define PSC_SMBTXRX_STP (1 << 29)
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#define PSC_SMBTXRX_DATAMASK 0xff
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/* SMBus protocol timers register. */
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#define PSC_SMBTMR_SET_TH(x) (((x) & 0x03) << 30)
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#define PSC_SMBTMR_SET_PS(x) (((x) & 0x1f) << 25)
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#define PSC_SMBTMR_SET_PU(x) (((x) & 0x1f) << 20)
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#define PSC_SMBTMR_SET_SH(x) (((x) & 0x1f) << 15)
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#define PSC_SMBTMR_SET_SU(x) (((x) & 0x1f) << 10)
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#define PSC_SMBTMR_SET_CL(x) (((x) & 0x1f) << 5)
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#define PSC_SMBTMR_SET_CH(x) (((x) & 0x1f) << 0)
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#endif /* _AU1000_PSC_H_ */
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