Hello Stefan,

Am 30.10.2014 09:33, schrieb Stefan Roese:
This patch adds I2C support for the SoCFPGA. Using the designware I2C
controller driver. It supports all 4 I2C busses on the SoCFPGA.

The designware I2C driver has now been converted to the
CONFIG_SYS_I2C framework. So lets enable it on SoCFPGA.

Tested on SoCrates.

Signed-off-by: Stefan Roese<s...@denx.de>
Cc: Marek Vasut<ma...@denx.de>
Cc: Chin Liang See<cl...@altera.com>
Cc: Dinh Nguyen<dingu...@altera.com>
Cc: Vince Bridgers<vbrid...@altera.com>
Cc: Pavel Machek<pa...@denx.de>
Cc: Heiko Schocher<h...@denx.de>
---
v2:
- The designware I2C driver now has been converted to the
   CONFIG_SYS_I2C framework. Use the correct defines to enable it.

  include/configs/socfpga_common.h | 27 +++++++++++++++++++++++++++
  1 file changed, 27 insertions(+)

As the socfpga custodian should pick up this patch, I only Ack
this patch:

Acked-by: Heiko Schocher <h...@denx.de>

bye,
Heiko

diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h
index 83a1bcd..f7b314d 100644
--- a/include/configs/socfpga_common.h
+++ b/include/configs/socfpga_common.h
@@ -141,6 +141,33 @@
  #define CONFIG_SYS_MMC_MAX_BLK_COUNT  256     /* FIXME -- SPL only? */
  #endif

+ /*
+ * I2C support
+ */
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_DW
+#define CONFIG_SYS_I2C_BUS_MAX         4
+#define CONFIG_SYS_I2C_BASE            SOCFPGA_I2C0_ADDRESS
+#define CONFIG_SYS_I2C_BASE1           SOCFPGA_I2C1_ADDRESS
+#define CONFIG_SYS_I2C_BASE2           SOCFPGA_I2C2_ADDRESS
+#define CONFIG_SYS_I2C_BASE3           SOCFPGA_I2C3_ADDRESS
+/* Using standard mode which the speed up to 100Kb/s */
+#define CONFIG_SYS_I2C_SPEED           100000
+#define CONFIG_SYS_I2C_SPEED1          100000
+#define CONFIG_SYS_I2C_SPEED2          100000
+#define CONFIG_SYS_I2C_SPEED3          100000
+/* Address of device when used as slave */
+#define CONFIG_SYS_I2C_SLAVE           0x02
+#define CONFIG_SYS_I2C_SLAVE1          0x02
+#define CONFIG_SYS_I2C_SLAVE2          0x02
+#define CONFIG_SYS_I2C_SLAVE3          0x02
+#ifndef __ASSEMBLY__
+/* Clock supplied to I2C controller in unit of MHz */
+unsigned int cm_get_l4_sp_clk_hz(void);
+#define IC_CLK                         (cm_get_l4_sp_clk_hz() / 1000000)
+#endif
+#define CONFIG_CMD_I2C
+
  /*
   * Serial Driver
   */

--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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