[U-Boot] [PATCH v2 2/2] blackfin: bf609: add softswitch config command

[Sonic Zhang <sonic.adi@gmail.com>]

From: Bob Liu <lliubbo@gmail.com>

Add softswitch_output command for bf609-ezkit to enable softswitches.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Sonic Zhang <sonic.adi@gmail.com>
---
Changes in v2:
- Add documentation for CONFIG_CMD_SOFTSWITCH to top-level README.

 README                                  |  1 +
 arch/blackfin/include/asm/soft_switch.h | 18 +++++++++++++++
 board/bf609-ezkit/soft_switch.c         | 11 +--------
 board/bf609-ezkit/soft_switch.h         | 25 +++++++++++++-------
 common/Makefile                         |  1 +
 common/cmd_softswitch.c                 | 41 +++++++++++++++++++++++++++++++++
 include/configs/bf609-ezkit.h           |  1 +
 7 files changed, 80 insertions(+), 18 deletions(-)
 create mode 100644 arch/blackfin/include/asm/soft_switch.h
 create mode 100644 common/cmd_softswitch.c

diff --git a/README b/README
index 0d37d56..defdedb 100644
--- a/README
+++ b/README
@@ -898,6 +898,7 @@ The following options need to be configured:
 		CONFIG_CMD_SF		* Read/write/erase SPI NOR flash
 		CONFIG_CMD_SHA1SUM	  print sha1 memory digest
 					  (requires CONFIG_CMD_MEMORY)
+		CONFIG_CMD_SOFTSWITCH	* Soft switch setting command for BF60x
 		CONFIG_CMD_SOURCE	  "source" command Support
 		CONFIG_CMD_SPI		* SPI serial bus support
 		CONFIG_CMD_TFTPSRV	* TFTP transfer in server mode
diff --git a/arch/blackfin/include/asm/soft_switch.h b/arch/blackfin/include/asm/soft_switch.h
new file mode 100644
index 0000000..ff8e44d
--- /dev/null
+++ b/arch/blackfin/include/asm/soft_switch.h
@@ -0,0 +1,18 @@
+/*
+ * U-boot - main board file
+ *
+ * Copyright (c) 2008-2012 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __SOFT_SWITCH_H__
+#define __SOFT_SWITCH_H__
+
+#define IO_PORT_A              0
+#define IO_PORT_B              1
+#define IO_PORT_INPUT          0
+#define IO_PORT_OUTPUT         1
+
+int config_switch_bit(int num, int port, int bit, int dir, uchar value);
+#endif
diff --git a/board/bf609-ezkit/soft_switch.c b/board/bf609-ezkit/soft_switch.c
index 2e1404f..e0c8d93 100644
--- a/board/bf609-ezkit/soft_switch.c
+++ b/board/bf609-ezkit/soft_switch.c
@@ -12,14 +12,6 @@
 #include <i2c.h>
 #include "soft_switch.h"
 
-#define SWITCH_ADDR     0x21
-
-#define NUM_SWITCH      3
-#define IODIRA          0x0
-#define IODIRB          0x1
-#define OLATA           0x14
-#define OLATB           0x15
-
 struct switch_config {
 	uchar dir0; /* IODIRA */
 	uchar dir1; /* IODIRB */
@@ -126,9 +118,8 @@ static int setup_soft_switch(int addr, struct switch_config *config)
 	return i2c_write(addr, IODIRB, 1, &config->dir1, 1);
 }
 
-int config_switch_bit(int num, int port, int bit, int dir, uchar value)
+int config_switch_bit(int addr, int port, int bit, int dir, uchar value)
 {
-	int addr = SWITCH_ADDR + num;
 	int ret, data_reg, dir_reg;
 	uchar tmp;
 
diff --git a/board/bf609-ezkit/soft_switch.h b/board/bf609-ezkit/soft_switch.h
index 8da0e44..d147fe1 100644
--- a/board/bf609-ezkit/soft_switch.h
+++ b/board/bf609-ezkit/soft_switch.h
@@ -6,8 +6,10 @@
  * Licensed under the GPL-2 or later.
  */
 
-#ifndef __SOFT_SWITCH_H__
-#define __SOFT_SWITCH_H__
+#ifndef __BOARD_SOFT_SWITCH_H__
+#define __BOARD_SOFT_SWITCH_H__
+
+#include <asm/soft_switch.h>
 
 /* switch 0 port A */
 #define CAN_EN                 0x1
@@ -61,11 +63,18 @@
 #define PD3_SPI0MOSI_EN        0x1
 #define PD4_SPI0CK_EN          0x2
 
-#define IO_PORT_A              0
-#define IO_PORT_B              1
-#define IO_PORT_INPUT          0
-#define IO_PORT_OUTPUT         1
+#ifdef CONFIG_BFIN_BOARD_VERSION_1_0
+#define SWITCH_ADDR     0x21
+#else
+#define SWITCH_ADDR     0x20
+#endif
+
+#define NUM_SWITCH      3
+#define IODIRA          0x0
+#define IODIRB          0x1
+#define OLATA           0x14
+#define OLATB           0x15
 
-int config_switch_bit(int num, int port, int bit, int dir, uchar value);
 int setup_board_switches(void);
-#endif
+
+#endif /* __BOARD_SOFT_SWITCH_H__ */
diff --git a/common/Makefile b/common/Makefile
index 0e0fff1..0429a3c 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -164,6 +164,7 @@ COBJS-$(CONFIG_CMD_SF) += cmd_sf.o
 COBJS-$(CONFIG_CMD_SCSI) += cmd_scsi.o
 COBJS-$(CONFIG_CMD_SHA1SUM) += cmd_sha1sum.o
 COBJS-$(CONFIG_CMD_SETEXPR) += cmd_setexpr.o
+COBJS-$(CONFIG_CMD_SOFTSWITCH) += cmd_softswitch.o
 COBJS-$(CONFIG_CMD_SPI) += cmd_spi.o
 COBJS-$(CONFIG_CMD_SPIBOOTLDR) += cmd_spibootldr.o
 COBJS-$(CONFIG_CMD_STRINGS) += cmd_strings.o
diff --git a/common/cmd_softswitch.c b/common/cmd_softswitch.c
new file mode 100644
index 0000000..f75d926
--- /dev/null
+++ b/common/cmd_softswitch.c
@@ -0,0 +1,41 @@
+/*
+ * cmd_softswitch.c - set the softswitch for bf60x
+ *
+ * Copyright (c) 2012 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm/soft_switch.h>
+
+int do_softswitch(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int switchaddr, value, pin, port;
+
+	if (argc != 5)
+		return CMD_RET_USAGE;
+
+	if (strcmp(argv[2], "GPA") == 0)
+		port = IO_PORT_A;
+	else if (strcmp(argv[2], "GPB") == 0)
+		port = IO_PORT_B;
+	else
+		return CMD_RET_USAGE;
+
+	switchaddr = simple_strtoul(argv[1], NULL, 16);
+	pin = simple_strtoul(argv[3], NULL, 16);
+	value = simple_strtoul(argv[4], NULL, 16);
+
+	config_switch_bit(switchaddr, port, (1 << pin), IO_PORT_OUTPUT, value);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	softswitch_output, 5, 1, do_softswitch,
+	"switchaddr GPA/GPB pin_offset value",
+	""
+);
diff --git a/include/configs/bf609-ezkit.h b/include/configs/bf609-ezkit.h
index 8b90129..f0ac86b 100644
--- a/include/configs/bf609-ezkit.h
+++ b/include/configs/bf609-ezkit.h
@@ -144,6 +144,7 @@
 #define CONFIG_UART_CONSOLE	0
 
 #define CONFIG_CMD_MEMORY
+#define CONFIG_CMD_SOFTSWITCH
 
 #define CONFIG_SYS_MEMTEST_END (CONFIG_STACKBASE - 20*1024*1024 + 4)
 #define CONFIG_BFIN_SOFT_SWITCH
-- 
1.8.2.3