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authorStefan Roese <sr@denx.de>2010-09-09 19:18:00 +0200
committerStefan Roese <sr@denx.de>2010-09-23 09:02:05 +0200
commitb36df561154bdd0a41bb77e09c5575ca2cf48013 (patch)
tree732ac4bb522eb29540d53ac3fe8bfb571ee7fac6 /arch/powerpc/include/asm/ppc4xx-i2c.h
parent4ad0df2b7c79b5514795202d59a4287bc73cb41f (diff)
downloadu-boot-linaro-stable-b36df561154bdd0a41bb77e09c5575ca2cf48013.tar.gz
ppc4xx: Move ppc4xx headers to powerpc include directory
This patch moves some ppc4xx related headers from the common include directory (include/) to the powerpc specific one (arch/powerpc/include/asm/). This way to common include directory is not so cluttered with files. Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/powerpc/include/asm/ppc4xx-i2c.h')
-rw-r--r--arch/powerpc/include/asm/ppc4xx-i2c.h127
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ppc4xx-i2c.h b/arch/powerpc/include/asm/ppc4xx-i2c.h
new file mode 100644
index 000000000..0c6c926f7
--- /dev/null
+++ b/arch/powerpc/include/asm/ppc4xx-i2c.h
@@ -0,0 +1,127 @@
+/*
+ * (C) Copyright 2007-2009
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _4xx_i2c_h_
+#define _4xx_i2c_h_
+
+#define IIC_OK 0
+#define IIC_NOK 1
+#define IIC_NOK_LA 2 /* Lost arbitration */
+#define IIC_NOK_ICT 3 /* Incomplete transfer */
+#define IIC_NOK_XFRA 4 /* Transfer aborted */
+#define IIC_NOK_DATA 5 /* No data in buffer */
+#define IIC_NOK_TOUT 6 /* Transfer timeout */
+
+#define IIC_TIMEOUT 1 /* 1 second */
+
+#if defined(CONFIG_I2C_MULTI_BUS)
+#define I2C_BUS_OFFS (i2c_bus_num * 0x100)
+#else
+#define I2C_BUS_OFFS (0x000)
+#endif /* CONFIG_I2C_MULTI_BUS */
+
+#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \
+ defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#define I2C_BASE_ADDR (CONFIG_SYS_PERIPHERAL_BASE + 0x00000700 + I2C_BUS_OFFS)
+#elif defined(CONFIG_440) || defined(CONFIG_405EX)
+/* all remaining 440 variants */
+#define I2C_BASE_ADDR (CONFIG_SYS_PERIPHERAL_BASE + 0x00000400 + I2C_BUS_OFFS)
+#else
+/* all 405 variants */
+#define I2C_BASE_ADDR (0xEF600500 + I2C_BUS_OFFS)
+#endif
+
+struct ppc4xx_i2c {
+ u8 mdbuf;
+ u8 res1;
+ u8 sdbuf;
+ u8 res2;
+ u8 lmadr;
+ u8 hmadr;
+ u8 cntl;
+ u8 mdcntl;
+ u8 sts;
+ u8 extsts;
+ u8 lsadr;
+ u8 hsadr;
+ u8 clkdiv;
+ u8 intrmsk;
+ u8 xfrcnt;
+ u8 xtcntlss;
+ u8 directcntl;
+ u8 intr;
+};
+
+/* MDCNTL Register Bit definition */
+#define IIC_MDCNTL_HSCL 0x01
+#define IIC_MDCNTL_EUBS 0x02
+#define IIC_MDCNTL_EINT 0x04
+#define IIC_MDCNTL_ESM 0x08
+#define IIC_MDCNTL_FSM 0x10
+#define IIC_MDCNTL_EGC 0x20
+#define IIC_MDCNTL_FMDB 0x40
+#define IIC_MDCNTL_FSDB 0x80
+
+/* CNTL Register Bit definition */
+#define IIC_CNTL_PT 0x01
+#define IIC_CNTL_READ 0x02
+#define IIC_CNTL_CHT 0x04
+#define IIC_CNTL_RPST 0x08
+/* bit 2/3 for Transfer count*/
+#define IIC_CNTL_AMD 0x40
+#define IIC_CNTL_HMT 0x80
+
+/* STS Register Bit definition */
+#define IIC_STS_PT 0x01
+#define IIC_STS_IRQA 0x02
+#define IIC_STS_ERR 0x04
+#define IIC_STS_SCMP 0x08
+#define IIC_STS_MDBF 0x10
+#define IIC_STS_MDBS 0x20
+#define IIC_STS_SLPR 0x40
+#define IIC_STS_SSS 0x80
+
+/* EXTSTS Register Bit definition */
+#define IIC_EXTSTS_XFRA 0x01
+#define IIC_EXTSTS_ICT 0x02
+#define IIC_EXTSTS_LA 0x04
+
+/* XTCNTLSS Register Bit definition */
+#define IIC_XTCNTLSS_SRST 0x01
+#define IIC_XTCNTLSS_EPI 0x02
+#define IIC_XTCNTLSS_SDBF 0x04
+#define IIC_XTCNTLSS_SBDD 0x08
+#define IIC_XTCNTLSS_SWS 0x10
+#define IIC_XTCNTLSS_SWC 0x20
+#define IIC_XTCNTLSS_SRS 0x40
+#define IIC_XTCNTLSS_SRC 0x80
+
+/* IICx_DIRECTCNTL register */
+#define IIC_DIRCNTL_SDAC 0x08
+#define IIC_DIRCNTL_SCC 0x04
+#define IIC_DIRCNTL_MSDA 0x02
+#define IIC_DIRCNTL_MSC 0x01
+
+#define DIRCTNL_FREE(v) (((v) & 0x0f) == 0x0f)
+#endif