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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