1 files changed, 505 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_psc.h b/arch/mips/include/asm/mach-au1x00/au1xxx_psc.h
new file mode 100644
index 000000000000..892b7f168eb4
--- /dev/null
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_psc.h
@@ -0,0 +1,505 @@
+/*
+ *
+ * BRIEF MODULE DESCRIPTION
+ *      Include file for Alchemy Semiconductor's Au1k CPU.
+ *
+ * Copyright 2004 Embedded Edge, LLC
+ *      dan@embeddededge.com
+ *
+ *  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.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Specifics for the Au1xxx Programmable Serial Controllers, first
+ * seen in the AU1550 part.
+ */
+#ifndef _AU1000_PSC_H_
+#define _AU1000_PSC_H_
+
+/* The PSC base addresses.  */
+#ifdef CONFIG_SOC_AU1550
+#define PSC0_BASE_ADDR          0xb1a00000
+#define PSC1_BASE_ADDR          0xb1b00000
+#define PSC2_BASE_ADDR          0xb0a00000
+#define PSC3_BASE_ADDR          0xb0b00000
+#endif
+
+#ifdef CONFIG_SOC_AU1200
+#define PSC0_BASE_ADDR          0xb1a00000
+#define PSC1_BASE_ADDR          0xb1b00000
+#endif
+
+/*
+ * The PSC select and control registers are common to all protocols.
+ */
+#define PSC_SEL_OFFSET          0x00000000
+#define PSC_CTRL_OFFSET         0x00000004
+
+#define PSC_SEL_CLK_MASK        (3 << 4)
+#define PSC_SEL_CLK_INTCLK      (0 << 4)
+#define PSC_SEL_CLK_EXTCLK      (1 << 4)
+#define PSC_SEL_CLK_SERCLK      (2 << 4)
+
+#define PSC_SEL_PS_MASK         0x00000007
+#define PSC_SEL_PS_DISABLED     0
+#define PSC_SEL_PS_SPIMODE      2
+#define PSC_SEL_PS_I2SMODE      3
+#define PSC_SEL_PS_AC97MODE     4
+#define PSC_SEL_PS_SMBUSMODE    5
+
+#define PSC_CTRL_DISABLE        0
+#define PSC_CTRL_SUSPEND        2
+#define PSC_CTRL_ENABLE         3
+
+/* AC97 Registers. */
+#define PSC_AC97CFG_OFFSET      0x00000008
+#define PSC_AC97MSK_OFFSET      0x0000000c
+#define PSC_AC97PCR_OFFSET      0x00000010
+#define PSC_AC97STAT_OFFSET     0x00000014
+#define PSC_AC97EVNT_OFFSET     0x00000018
+#define PSC_AC97TXRX_OFFSET     0x0000001c
+#define PSC_AC97CDC_OFFSET      0x00000020
+#define PSC_AC97RST_OFFSET      0x00000024
+#define PSC_AC97GPO_OFFSET      0x00000028
+#define PSC_AC97GPI_OFFSET      0x0000002c
+
+#define AC97_PSC_SEL            (AC97_PSC_BASE + PSC_SEL_OFFSET)
+#define AC97_PSC_CTRL           (AC97_PSC_BASE + PSC_CTRL_OFFSET)
+#define PSC_AC97CFG             (AC97_PSC_BASE + PSC_AC97CFG_OFFSET)
+#define PSC_AC97MSK             (AC97_PSC_BASE + PSC_AC97MSK_OFFSET)
+#define PSC_AC97PCR             (AC97_PSC_BASE + PSC_AC97PCR_OFFSET)
+#define PSC_AC97STAT            (AC97_PSC_BASE + PSC_AC97STAT_OFFSET)
+#define PSC_AC97EVNT            (AC97_PSC_BASE + PSC_AC97EVNT_OFFSET)
+#define PSC_AC97TXRX            (AC97_PSC_BASE + PSC_AC97TXRX_OFFSET)
+#define PSC_AC97CDC             (AC97_PSC_BASE + PSC_AC97CDC_OFFSET)
+#define PSC_AC97RST             (AC97_PSC_BASE + PSC_AC97RST_OFFSET)
+#define PSC_AC97GPO             (AC97_PSC_BASE + PSC_AC97GPO_OFFSET)
+#define PSC_AC97GPI             (AC97_PSC_BASE + PSC_AC97GPI_OFFSET)
+
+/* AC97 Config Register. */
+#define PSC_AC97CFG_RT_MASK     (3 << 30)
+#define PSC_AC97CFG_RT_FIFO1    (0 << 30)
+#define PSC_AC97CFG_RT_FIFO2    (1 << 30)
+#define PSC_AC97CFG_RT_FIFO4    (2 << 30)
+#define PSC_AC97CFG_RT_FIFO8    (3 << 30)
+
+#define PSC_AC97CFG_TT_MASK     (3 << 28)
+#define PSC_AC97CFG_TT_FIFO1    (0 << 28)
+#define PSC_AC97CFG_TT_FIFO2    (1 << 28)
+#define PSC_AC97CFG_TT_FIFO4    (2 << 28)
+#define PSC_AC97CFG_TT_FIFO8    (3 << 28)
+
+#define PSC_AC97CFG_DD_DISABLE  (1 << 27)
+#define PSC_AC97CFG_DE_ENABLE   (1 << 26)
+#define PSC_AC97CFG_SE_ENABLE   (1 << 25)
+
+#define PSC_AC97CFG_LEN_MASK    (0xf << 21)
+#define PSC_AC97CFG_TXSLOT_MASK (0x3ff << 11)
+#define PSC_AC97CFG_RXSLOT_MASK (0x3ff << 1)
+#define PSC_AC97CFG_GE_ENABLE   (1)
+
+/* Enable slots 3-12. */
+#define PSC_AC97CFG_TXSLOT_ENA(x)       (1 << (((x) - 3) + 11))
+#define PSC_AC97CFG_RXSLOT_ENA(x)       (1 << (((x) - 3) + 1))
+
+/*
+ * The word length equation is ((x) * 2) + 2, so choose 'x' appropriately.
+ * The only sensible numbers are 7, 9, or possibly 11.  Nah, just do the
+ * arithmetic in the macro.
+ */
+#define PSC_AC97CFG_SET_LEN(x)  (((((x) - 2) / 2) & 0xf) << 21)
+#define PSC_AC97CFG_GET_LEN(x)  (((((x) >> 21) & 0xf) * 2) + 2)
+
+/* AC97 Mask Register. */
+#define PSC_AC97MSK_GR          (1 << 25)
+#define PSC_AC97MSK_CD          (1 << 24)
+#define PSC_AC97MSK_RR          (1 << 13)
+#define PSC_AC97MSK_RO          (1 << 12)
+#define PSC_AC97MSK_RU          (1 << 11)
+#define PSC_AC97MSK_TR          (1 << 10)
+#define PSC_AC97MSK_TO          (1 << 9)
+#define PSC_AC97MSK_TU          (1 << 8)
+#define PSC_AC97MSK_RD          (1 << 5)
+#define PSC_AC97MSK_TD          (1 << 4)
+#define PSC_AC97MSK_ALLMASK     (PSC_AC97MSK_GR | PSC_AC97MSK_CD | \
+                                 PSC_AC97MSK_RR | PSC_AC97MSK_RO | \
+                                 PSC_AC97MSK_RU | PSC_AC97MSK_TR | \
+                                 PSC_AC97MSK_TO | PSC_AC97MSK_TU | \
+                                 PSC_AC97MSK_RD | PSC_AC97MSK_TD)
+
+/* AC97 Protocol Control Register. */
+#define PSC_AC97PCR_RC          (1 << 6)
+#define PSC_AC97PCR_RP          (1 << 5)
+#define PSC_AC97PCR_RS          (1 << 4)
+#define PSC_AC97PCR_TC          (1 << 2)
+#define PSC_AC97PCR_TP          (1 << 1)
+#define PSC_AC97PCR_TS          (1 << 0)
+
+/* AC97 Status register (read only). */
+#define PSC_AC97STAT_CB         (1 << 26)
+#define PSC_AC97STAT_CP         (1 << 25)
+#define PSC_AC97STAT_CR         (1 << 24)
+#define PSC_AC97STAT_RF         (1 << 13)
+#define PSC_AC97STAT_RE         (1 << 12)
+#define PSC_AC97STAT_RR         (1 << 11)
+#define PSC_AC97STAT_TF         (1 << 10)
+#define PSC_AC97STAT_TE         (1 << 9)
+#define PSC_AC97STAT_TR         (1 << 8)
+#define PSC_AC97STAT_RB         (1 << 5)
+#define PSC_AC97STAT_TB         (1 << 4)
+#define PSC_AC97STAT_DI         (1 << 2)
+#define PSC_AC97STAT_DR         (1 << 1)
+#define PSC_AC97STAT_SR         (1 << 0)
+
+/* AC97 Event Register. */
+#define PSC_AC97EVNT_GR         (1 << 25)
+#define PSC_AC97EVNT_CD         (1 << 24)
+#define PSC_AC97EVNT_RR         (1 << 13)
+#define PSC_AC97EVNT_RO         (1 << 12)
+#define PSC_AC97EVNT_RU         (1 << 11)
+#define PSC_AC97EVNT_TR         (1 << 10)
+#define PSC_AC97EVNT_TO         (1 << 9)
+#define PSC_AC97EVNT_TU         (1 << 8)
+#define PSC_AC97EVNT_RD         (1 << 5)
+#define PSC_AC97EVNT_TD         (1 << 4)
+
+/* CODEC Command Register. */
+#define PSC_AC97CDC_RD          (1 << 25)
+#define PSC_AC97CDC_ID_MASK     (3 << 23)
+#define PSC_AC97CDC_INDX_MASK   (0x7f << 16)
+#define PSC_AC97CDC_ID(x)       (((x) & 0x03) << 23)
+#define PSC_AC97CDC_INDX(x)     (((x) & 0x7f) << 16)
+
+/* AC97 Reset Control Register. */
+#define PSC_AC97RST_RST         (1 << 1)
+#define PSC_AC97RST_SNC         (1 << 0)
+
+/* PSC in I2S Mode. */
+typedef struct  psc_i2s {
+        u32     psc_sel;
+        u32     psc_ctrl;
+        u32     psc_i2scfg;
+        u32     psc_i2smsk;
+        u32     psc_i2spcr;
+        u32     psc_i2sstat;
+        u32     psc_i2sevent;
+        u32     psc_i2stxrx;
+        u32     psc_i2sudf;
+} psc_i2s_t;
+
+#define PSC_I2SCFG_OFFSET       0x08
+#define PSC_I2SMASK_OFFSET      0x0C
+#define PSC_I2SPCR_OFFSET       0x10
+#define PSC_I2SSTAT_OFFSET      0x14
+#define PSC_I2SEVENT_OFFSET     0x18
+#define PSC_I2SRXTX_OFFSET      0x1C
+#define PSC_I2SUDF_OFFSET       0x20
+
+/* I2S Config Register. */
+#define PSC_I2SCFG_RT_MASK      (3 << 30)
+#define PSC_I2SCFG_RT_FIFO1     (0 << 30)
+#define PSC_I2SCFG_RT_FIFO2     (1 << 30)
+#define PSC_I2SCFG_RT_FIFO4     (2 << 30)
+#define PSC_I2SCFG_RT_FIFO8     (3 << 30)
+
+#define PSC_I2SCFG_TT_MASK      (3 << 28)
+#define PSC_I2SCFG_TT_FIFO1     (0 << 28)
+#define PSC_I2SCFG_TT_FIFO2     (1 << 28)
+#define PSC_I2SCFG_TT_FIFO4     (2 << 28)
+#define PSC_I2SCFG_TT_FIFO8     (3 << 28)
+
+#define PSC_I2SCFG_DD_DISABLE   (1 << 27)
+#define PSC_I2SCFG_DE_ENABLE    (1 << 26)
+#define PSC_I2SCFG_SET_WS(x)    (((((x) / 2) - 1) & 0x7f) << 16)
+#define PSC_I2SCFG_WS(n)        ((n & 0xFF) << 16)
+#define PSC_I2SCFG_WS_MASK      (PSC_I2SCFG_WS(0x3F))
+#define PSC_I2SCFG_WI           (1 << 15)
+
+#define PSC_I2SCFG_DIV_MASK     (3 << 13)
+#define PSC_I2SCFG_DIV2         (0 << 13)
+#define PSC_I2SCFG_DIV4         (1 << 13)
+#define PSC_I2SCFG_DIV8         (2 << 13)
+#define PSC_I2SCFG_DIV16        (3 << 13)
+
+#define PSC_I2SCFG_BI           (1 << 12)
+#define PSC_I2SCFG_BUF          (1 << 11)
+#define PSC_I2SCFG_MLJ          (1 << 10)
+#define PSC_I2SCFG_XM           (1 << 9)
+
+/* The word length equation is simply LEN+1. */
+#define PSC_I2SCFG_SET_LEN(x)   ((((x) - 1) & 0x1f) << 4)
+#define PSC_I2SCFG_GET_LEN(x)   ((((x) >> 4) & 0x1f) + 1)
+
+#define PSC_I2SCFG_LB           (1 << 2)
+#define PSC_I2SCFG_MLF          (1 << 1)
+#define PSC_I2SCFG_MS           (1 << 0)
+
+/* I2S Mask Register. */
+#define PSC_I2SMSK_RR           (1 << 13)
+#define PSC_I2SMSK_RO           (1 << 12)
+#define PSC_I2SMSK_RU           (1 << 11)
+#define PSC_I2SMSK_TR           (1 << 10)
+#define PSC_I2SMSK_TO           (1 << 9)
+#define PSC_I2SMSK_TU           (1 << 8)
+#define PSC_I2SMSK_RD           (1 << 5)
+#define PSC_I2SMSK_TD           (1 << 4)
+#define PSC_I2SMSK_ALLMASK      (PSC_I2SMSK_RR | PSC_I2SMSK_RO | \
+                                 PSC_I2SMSK_RU | PSC_I2SMSK_TR | \
+                                 PSC_I2SMSK_TO | PSC_I2SMSK_TU | \
+                                 PSC_I2SMSK_RD | PSC_I2SMSK_TD)
+
+/* I2S Protocol Control Register. */
+#define PSC_I2SPCR_RC           (1 << 6)
+#define PSC_I2SPCR_RP           (1 << 5)
+#define PSC_I2SPCR_RS           (1 << 4)
+#define PSC_I2SPCR_TC           (1 << 2)
+#define PSC_I2SPCR_TP           (1 << 1)
+#define PSC_I2SPCR_TS           (1 << 0)
+
+/* I2S Status register (read only). */
+#define PSC_I2SSTAT_RF          (1 << 13)
+#define PSC_I2SSTAT_RE          (1 << 12)
+#define PSC_I2SSTAT_RR          (1 << 11)
+#define PSC_I2SSTAT_TF          (1 << 10)
+#define PSC_I2SSTAT_TE          (1 << 9)
+#define PSC_I2SSTAT_TR          (1 << 8)
+#define PSC_I2SSTAT_RB          (1 << 5)
+#define PSC_I2SSTAT_TB          (1 << 4)
+#define PSC_I2SSTAT_DI          (1 << 2)
+#define PSC_I2SSTAT_DR          (1 << 1)
+#define PSC_I2SSTAT_SR          (1 << 0)
+
+/* I2S Event Register. */
+#define PSC_I2SEVNT_RR          (1 << 13)
+#define PSC_I2SEVNT_RO          (1 << 12)
+#define PSC_I2SEVNT_RU          (1 << 11)
+#define PSC_I2SEVNT_TR          (1 << 10)
+#define PSC_I2SEVNT_TO          (1 << 9)
+#define PSC_I2SEVNT_TU          (1 << 8)
+#define PSC_I2SEVNT_RD          (1 << 5)
+#define PSC_I2SEVNT_TD          (1 << 4)
+
+/* PSC in SPI Mode. */
+typedef struct  psc_spi {
+        u32     psc_sel;
+        u32     psc_ctrl;
+        u32     psc_spicfg;
+        u32     psc_spimsk;
+        u32     psc_spipcr;
+        u32     psc_spistat;
+        u32     psc_spievent;
+        u32     psc_spitxrx;
+} psc_spi_t;
+
+/* SPI Config Register. */
+#define PSC_SPICFG_RT_MASK      (3 << 30)
+#define PSC_SPICFG_RT_FIFO1     (0 << 30)
+#define PSC_SPICFG_RT_FIFO2     (1 << 30)
+#define PSC_SPICFG_RT_FIFO4     (2 << 30)
+#define PSC_SPICFG_RT_FIFO8     (3 << 30)
+
+#define PSC_SPICFG_TT_MASK      (3 << 28)
+#define PSC_SPICFG_TT_FIFO1     (0 << 28)
+#define PSC_SPICFG_TT_FIFO2     (1 << 28)
+#define PSC_SPICFG_TT_FIFO4     (2 << 28)
+#define PSC_SPICFG_TT_FIFO8     (3 << 28)
+
+#define PSC_SPICFG_DD_DISABLE   (1 << 27)
+#define PSC_SPICFG_DE_ENABLE    (1 << 26)
+#define PSC_SPICFG_CLR_BAUD(x)  ((x) & ~((0x3f) << 15))
+#define PSC_SPICFG_SET_BAUD(x)  (((x) & 0x3f) << 15)
+
+#define PSC_SPICFG_SET_DIV(x)   (((x) & 0x03) << 13)
+#define PSC_SPICFG_DIV2         0
+#define PSC_SPICFG_DIV4         1
+#define PSC_SPICFG_DIV8         2
+#define PSC_SPICFG_DIV16        3
+
+#define PSC_SPICFG_BI           (1 << 12)
+#define PSC_SPICFG_PSE          (1 << 11)
+#define PSC_SPICFG_CGE          (1 << 10)
+#define PSC_SPICFG_CDE          (1 << 9)
+
+#define PSC_SPICFG_CLR_LEN(x)   ((x) & ~((0x1f) << 4))
+#define PSC_SPICFG_SET_LEN(x)   (((x-1) & 0x1f) << 4)
+
+#define PSC_SPICFG_LB           (1 << 3)
+#define PSC_SPICFG_MLF          (1 << 1)
+#define PSC_SPICFG_MO           (1 << 0)
+
+/* SPI Mask Register. */
+#define PSC_SPIMSK_MM           (1 << 16)
+#define PSC_SPIMSK_RR           (1 << 13)
+#define PSC_SPIMSK_RO           (1 << 12)
+#define PSC_SPIMSK_RU           (1 << 11)
+#define PSC_SPIMSK_TR           (1 << 10)
+#define PSC_SPIMSK_TO           (1 << 9)
+#define PSC_SPIMSK_TU           (1 << 8)
+#define PSC_SPIMSK_SD           (1 << 5)
+#define PSC_SPIMSK_MD           (1 << 4)
+#define PSC_SPIMSK_ALLMASK      (PSC_SPIMSK_MM | PSC_SPIMSK_RR | \
+                                 PSC_SPIMSK_RO | PSC_SPIMSK_TO | \
+                                 PSC_SPIMSK_TU | PSC_SPIMSK_SD | \
+                                 PSC_SPIMSK_MD)
+
+/* SPI Protocol Control Register. */
+#define PSC_SPIPCR_RC           (1 << 6)
+#define PSC_SPIPCR_SP           (1 << 5)
+#define PSC_SPIPCR_SS           (1 << 4)
+#define PSC_SPIPCR_TC           (1 << 2)
+#define PSC_SPIPCR_MS           (1 << 0)
+
+/* SPI Status register (read only). */
+#define PSC_SPISTAT_RF          (1 << 13)
+#define PSC_SPISTAT_RE          (1 << 12)
+#define PSC_SPISTAT_RR          (1 << 11)
+#define PSC_SPISTAT_TF          (1 << 10)
+#define PSC_SPISTAT_TE          (1 << 9)
+#define PSC_SPISTAT_TR          (1 << 8)
+#define PSC_SPISTAT_SB          (1 << 5)
+#define PSC_SPISTAT_MB          (1 << 4)
+#define PSC_SPISTAT_DI          (1 << 2)
+#define PSC_SPISTAT_DR          (1 << 1)
+#define PSC_SPISTAT_SR          (1 << 0)
+
+/* SPI Event Register. */
+#define PSC_SPIEVNT_MM          (1 << 16)
+#define PSC_SPIEVNT_RR          (1 << 13)
+#define PSC_SPIEVNT_RO          (1 << 12)
+#define PSC_SPIEVNT_RU          (1 << 11)
+#define PSC_SPIEVNT_TR          (1 << 10)
+#define PSC_SPIEVNT_TO          (1 << 9)
+#define PSC_SPIEVNT_TU          (1 << 8)
+#define PSC_SPIEVNT_SD          (1 << 5)
+#define PSC_SPIEVNT_MD          (1 << 4)
+
+/* Transmit register control. */
+#define PSC_SPITXRX_LC          (1 << 29)
+#define PSC_SPITXRX_SR          (1 << 28)
+
+/* PSC in SMBus (I2C) Mode. */
+typedef struct  psc_smb {
+        u32     psc_sel;
+        u32     psc_ctrl;
+        u32     psc_smbcfg;
+        u32     psc_smbmsk;
+        u32     psc_smbpcr;
+        u32     psc_smbstat;
+        u32     psc_smbevnt;
+        u32     psc_smbtxrx;
+        u32     psc_smbtmr;
+} psc_smb_t;
+
+/* SMBus Config Register. */
+#define PSC_SMBCFG_RT_MASK      (3 << 30)
+#define PSC_SMBCFG_RT_FIFO1     (0 << 30)
+#define PSC_SMBCFG_RT_FIFO2     (1 << 30)
+#define PSC_SMBCFG_RT_FIFO4     (2 << 30)
+#define PSC_SMBCFG_RT_FIFO8     (3 << 30)
+
+#define PSC_SMBCFG_TT_MASK      (3 << 28)
+#define PSC_SMBCFG_TT_FIFO1     (0 << 28)
+#define PSC_SMBCFG_TT_FIFO2     (1 << 28)
+#define PSC_SMBCFG_TT_FIFO4     (2 << 28)
+#define PSC_SMBCFG_TT_FIFO8     (3 << 28)
+
+#define PSC_SMBCFG_DD_DISABLE   (1 << 27)
+#define PSC_SMBCFG_DE_ENABLE    (1 << 26)
+
+#define PSC_SMBCFG_SET_DIV(x)   (((x) & 0x03) << 13)
+#define PSC_SMBCFG_DIV2         0
+#define PSC_SMBCFG_DIV4         1
+#define PSC_SMBCFG_DIV8         2
+#define PSC_SMBCFG_DIV16        3
+
+#define PSC_SMBCFG_GCE          (1 << 9)
+#define PSC_SMBCFG_SFM          (1 << 8)
+
+#define PSC_SMBCFG_SET_SLV(x)   (((x) & 0x7f) << 1)
+
+/* SMBus Mask Register. */
+#define PSC_SMBMSK_DN           (1 << 30)
+#define PSC_SMBMSK_AN           (1 << 29)
+#define PSC_SMBMSK_AL           (1 << 28)
+#define PSC_SMBMSK_RR           (1 << 13)
+#define PSC_SMBMSK_RO           (1 << 12)
+#define PSC_SMBMSK_RU           (1 << 11)
+#define PSC_SMBMSK_TR           (1 << 10)
+#define PSC_SMBMSK_TO           (1 << 9)
+#define PSC_SMBMSK_TU           (1 << 8)
+#define PSC_SMBMSK_SD           (1 << 5)
+#define PSC_SMBMSK_MD           (1 << 4)
+#define PSC_SMBMSK_ALLMASK      (PSC_SMBMSK_DN | PSC_SMBMSK_AN | \
+                                 PSC_SMBMSK_AL | PSC_SMBMSK_RR | \
+                                 PSC_SMBMSK_RO | PSC_SMBMSK_TO | \
+                                 PSC_SMBMSK_TU | PSC_SMBMSK_SD | \
+                                 PSC_SMBMSK_MD)
+
+/* SMBus Protocol Control Register. */
+#define PSC_SMBPCR_DC           (1 << 2)
+#define PSC_SMBPCR_MS           (1 << 0)
+
+/* SMBus Status register (read only). */
+#define PSC_SMBSTAT_BB          (1 << 28)
+#define PSC_SMBSTAT_RF          (1 << 13)
+#define PSC_SMBSTAT_RE          (1 << 12)
+#define PSC_SMBSTAT_RR          (1 << 11)
+#define PSC_SMBSTAT_TF          (1 << 10)
+#define PSC_SMBSTAT_TE          (1 << 9)
+#define PSC_SMBSTAT_TR          (1 << 8)
+#define PSC_SMBSTAT_SB          (1 << 5)
+#define PSC_SMBSTAT_MB          (1 << 4)
+#define PSC_SMBSTAT_DI          (1 << 2)
+#define PSC_SMBSTAT_DR          (1 << 1)
+#define PSC_SMBSTAT_SR          (1 << 0)
+
+/* SMBus Event Register. */
+#define PSC_SMBEVNT_DN          (1 << 30)
+#define PSC_SMBEVNT_AN          (1 << 29)
+#define PSC_SMBEVNT_AL          (1 << 28)
+#define PSC_SMBEVNT_RR          (1 << 13)
+#define PSC_SMBEVNT_RO          (1 << 12)
+#define PSC_SMBEVNT_RU          (1 << 11)
+#define PSC_SMBEVNT_TR          (1 << 10)
+#define PSC_SMBEVNT_TO          (1 << 9)
+#define PSC_SMBEVNT_TU          (1 << 8)
+#define PSC_SMBEVNT_SD          (1 << 5)
+#define PSC_SMBEVNT_MD          (1 << 4)
+#define PSC_SMBEVNT_ALLCLR      (PSC_SMBEVNT_DN | PSC_SMBEVNT_AN | \
+                                 PSC_SMBEVNT_AL | PSC_SMBEVNT_RR | \
+                                 PSC_SMBEVNT_RO | PSC_SMBEVNT_TO | \
+                                 PSC_SMBEVNT_TU | PSC_SMBEVNT_SD | \
+                                 PSC_SMBEVNT_MD)
+
+/* Transmit register control. */
+#define PSC_SMBTXRX_RSR         (1 << 28)
+#define PSC_SMBTXRX_STP         (1 << 29)
+#define PSC_SMBTXRX_DATAMASK    0xff
+
+/* SMBus protocol timers register. */
+#define PSC_SMBTMR_SET_TH(x)    (((x) & 0x03) << 30)
+#define PSC_SMBTMR_SET_PS(x)    (((x) & 0x1f) << 25)
+#define PSC_SMBTMR_SET_PU(x)    (((x) & 0x1f) << 20)
+#define PSC_SMBTMR_SET_SH(x)    (((x) & 0x1f) << 15)
+#define PSC_SMBTMR_SET_SU(x)    (((x) & 0x1f) << 10)
+#define PSC_SMBTMR_SET_CL(x)    (((x) & 0x1f) << 5)
+#define PSC_SMBTMR_SET_CH(x)    (((x) & 0x1f) << 0)
+
+#endif /* _AU1000_PSC_H_ */