arc: add Arcangel4 board support

[oweals/u-boot.git] / include / configs / RPXlite.h

diff --git a/include/configs/RPXlite.h b/include/configs/RPXlite.h
index 28132566df9479cb803beaf43c8fc6f55a3d3624..a28230a5d742f94a7cc75a3a8d589873d150e2bb 100644 (file)
--- a/include/configs/RPXlite.h
+++ b/include/configs/RPXlite.h
@@ -46,6 +46,36 @@
 #undef CONFIG_SYS_LOADS_BAUD_CHANGE            /* don't allow baudrate change  */
 
 #define CONFIG_BZIP2           /* Include support for bzip2 compressed images  */
+
+/* enable I2C and select the hardware/software driver */
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_SOFT            /* I2C bit-banged */
+#define CONFIG_SYS_I2C_SOFT_SPEED      40000   /* 40 kHz is supposed to work */
+#define CONFIG_SYS_I2C_SOFT_SLAVE      0xFE
+/* Software (bit-bang) I2C driver configuration */
+#define PB_SCL         0x00000020      /* PB 26 */
+#define PB_SDA         0x00000010      /* PB 27 */
+
+#define I2C_INIT       (immr->im_cpm.cp_pbdir |=  PB_SCL)
+#define I2C_ACTIVE     (immr->im_cpm.cp_pbdir |=  PB_SDA)
+#define I2C_TRISTATE   (immr->im_cpm.cp_pbdir &= ~PB_SDA)
+#define I2C_READ       ((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
+#define I2C_SDA(bit)   if (bit) \
+                               immr->im_cpm.cp_pbdat |=  PB_SDA; \
+                       else \
+                               immr->im_cpm.cp_pbdat &= ~PB_SDA
+#define I2C_SCL(bit)   if (bit) \
+                               immr->im_cpm.cp_pbdat |=  PB_SCL; \
+                       else \
+                               immr->im_cpm.cp_pbdat &= ~PB_SCL
+#define I2C_DELAY      udelay(5)       /* 1/4 I2C clock duration */
+
+/* M41T11 Serial Access Timekeeper(R) SRAM */
+#define CONFIG_RTC_M41T11 1
+#define CONFIG_SYS_I2C_RTC_ADDR 0x68
+/* play along with the linux driver */
+#define CONFIG_SYS_M41T11_BASE_YEAR 1900
+
 #undef CONFIG_WATCHDOG                 /* watchdog disabled            */
 
 /*
@@ -68,7 +98,6 @@
  * Miscellaneous configurable options
  */
 #define        CONFIG_SYS_LONGHELP                     /* undef to save memory         */
-#define        CONFIG_SYS_PROMPT       "=> "           /* Monitor Command Prompt       */
 #if defined(CONFIG_CMD_KGDB)
 #define        CONFIG_SYS_CBSIZE       1024            /* Console I/O Buffer Size      */
 #else
@@ -85,8 +114,6 @@
 
 #define        CONFIG_SYS_LOAD_ADDR            0x400000        /* default load address */
 
-#define        CONFIG_SYS_HZ                   1000            /* decrementer freq: 1 ms ticks */
-
 /*
  * Low Level Configuration Settings
  * (address mappings, register initial values, etc.)