[U-Boot] [PATCH 1/3] Fix a typo in the instructions on using omap3's gpio interface.

[U-Boot] [PATCH 1/3] Fix a typo in the instructions on using omap3's gpio interface.

[Tom Rix]

Using the example for reading a gpio, shows the problem.
NULL should be the gpio number.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
---
 doc/README.omap3 |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/doc/README.omap3 b/doc/README.omap3
index e05e816..66e781d 100644
--- a/doc/README.omap3
+++ b/doc/README.omap3
@@ -106,7 +106,7 @@ To clear a bit :
 To read a bit :
 
 	if (!omap_request_gpio(N)) {
-		omap_set_gpio_direction(NULL, 1);
+		omap_set_gpio_direction(N, 1);
 		val = omap_get_gpio_datain(N);
 		omap_free_gpio(N);
 	}
-- 
1.6.0.5

[U-Boot] [PATCH 2/3] ZOOM2 detect the version of the zoom2

[Tom Rix]

Jean-Christophe, 

Based on your review I have made the changes you asked for. 

Tom

> @@ -60,6 +61,46 @@ static u32 gpmc_serial_TL16CP754C[GPMC_MAX_REG] = {
>  	0x1D0904C4, 0
>  };
>  
> +/* Used to track the revision of the board */
> +int zoom2_revision = ZOOM2_REVISION_UNKNOWN;
add static and as the beagle provide a function to get the current version
> +

Tom : Ok added
See
+/* Used to track the revision of the board */
+static ZOOM2_REVISION zoom2_revision = ZOOM2_REVISION_UNKNOWN;
+
+/*
+ * Routine: zoom2_get_revision
+ * Description: Return the revision of the Zoom2 this code is running on.
+ */
+ZOOM2_REVISION zoom2_get_revision(void)
+{
+	return zoom2_revision;
+}

-------------------------------------------------------------------

> +	printf("Board revision ");
> +	if (ZOOM2_REVISION_PRODUCTION == zoom2_revision)
> +		printf("Production\n");
> +	else if (ZOOM2_REVISION_BETA == zoom2_revision)
> +		printf("Beta\n");
> +	else
> +		printf("Unknown\n");
please use switch
> +}

Tom : Ok done.
See
+	switch (zoom2_revision) {
+	case (ZOOM2_REVISION_PRODUCTION):
+		printf("Production\n");
+		break;
+	case (ZOOM2_REVISION_BETA):
+		printf("Beta\n");
+		break;
+	default:
+		printf("Unknown\n");
+		break;
+	}
+}

-------------------------------------------------------

> +#define ZOOM2_REVISION_UNKNOWN		0
> +#define ZOOM2_REVISION_ALPHA		1
> +#define ZOOM2_REVISION_BETA		2
> +#define ZOOM2_REVISION_PRODUCTION	3
please use an emum

Tom : Ok
See 
+typedef enum {
+	ZOOM2_REVISION_UNKNOWN = 0,
+	ZOOM2_REVISION_ALPHA,
+	ZOOM2_REVISION_BETA,
+	ZOOM2_REVISION_PRODUCTION
+} ZOOM2_REVISION;

----------------------------------------------------------

Also changed this comment in beagle.c

 /*
  * Routine: beagle_get_revision
- * Description: Return revision of the BeagleBoard this code is running on.
+ * Description: Return the revision of the BeagleBoard this code is running on.

[U-Boot] [PATCH 1/3] Fix a typo in the instructions on using omap3's gpio interface.

[Tom Rix]

Using the example for reading a gpio, shows the problem.
NULL should be the gpio number.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
---
 doc/README.omap3 |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/doc/README.omap3 b/doc/README.omap3
index e05e816..66e781d 100644
--- a/doc/README.omap3
+++ b/doc/README.omap3
@@ -106,7 +106,7 @@ To clear a bit :
 To read a bit :
 
 	if (!omap_request_gpio(N)) {
-		omap_set_gpio_direction(NULL, 1);
+		omap_set_gpio_direction(N, 1);
 		val = omap_get_gpio_datain(N);
 		omap_free_gpio(N);
 	}
-- 
1.6.0.5

[U-Boot] [PATCH 2/3] ZOOM2 detect the version of the zoom2 board at runtime.

[Tom Rix]

There are currently 3 versions of the zoom2 board.
The production board, that is currently being released.
The beta board, similar in form to the production board but not released.
The alpha board, a set of PCBs with a very limited circulation.

GPIO 94 is used to determine the version of the board. If GPIO 94 is clear,
the board is a production board, otherwise it is a beta board.

The alpha board will likely be mistaken for a beta board.  An alpha board
was unavailible for testing.

This has been tested on the beta and production boards.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
---
 board/omap3/zoom2/zoom2.c |   62 ++++++++++++++++++++++++++++++++++++++++++--
 board/omap3/zoom2/zoom2.h |    9 ++++++
 2 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/board/omap3/zoom2/zoom2.c b/board/omap3/zoom2/zoom2.c
index e5c248d..94231da 100644
--- a/board/omap3/zoom2/zoom2.c
+++ b/board/omap3/zoom2/zoom2.c
@@ -33,6 +33,7 @@
 #include <status_led.h>
 #endif
 #include <asm/io.h>
+#include <asm/arch/gpio.h>
 #include <asm/arch/mem.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/sys_proto.h>
@@ -60,6 +61,60 @@ static u32 gpmc_serial_TL16CP754C[GPMC_MAX_REG] = {
 	0x1D0904C4, 0
 };
 
+/* Used to track the revision of the board */
+static ZOOM2_REVISION zoom2_revision = ZOOM2_REVISION_UNKNOWN;
+
+/*
+ * Routine: zoom2_get_revision
+ * Description: Return the revision of the Zoom2 this code is running on.
+ */
+ZOOM2_REVISION zoom2_get_revision(void)
+{
+	return zoom2_revision;
+}
+
+/*
+ * Routine: zoom2_identify
+ * Description: Detect which version of Zoom2 we are running on.
+ */
+void zoom2_identify(void)
+{
+	/*
+	 * To check for production board vs beta board,
+	 * check if gpio 94 is clear.
+	 *
+	 * No way yet to check for alpha board identity.
+	 * Alpha boards were produced in very limited quantities
+	 * and they are not commonly used.  They are mentioned here
+	 * only for completeness.
+	 */
+	if (!omap_request_gpio(94)) {
+		unsigned int val;
+
+		omap_set_gpio_direction(94, 1);
+		val = omap_get_gpio_datain(94);
+		omap_free_gpio(94);
+
+		if (val)
+			zoom2_revision = ZOOM2_REVISION_BETA;
+		else
+			zoom2_revision = ZOOM2_REVISION_PRODUCTION;
+	}
+
+	printf("Board revision ");
+	switch (zoom2_revision) {
+	case (ZOOM2_REVISION_PRODUCTION):
+		printf("Production\n");
+		break;
+	case (ZOOM2_REVISION_BETA):
+		printf("Beta\n");
+		break;
+	default:
+		printf("Unknown\n");
+		break;
+	}
+}
+
 /*
  * Routine: board_init
  * Description: Early hardware init.
@@ -96,10 +151,11 @@ int board_init (void)
  * Routine: misc_init_r
  * Description: Configure zoom board specific configurations
  */
-int misc_init_r (void)
+int misc_init_r(void)
 {
-	power_init_r ();
-	dieid_num_r ();
+	zoom2_identify();
+	power_init_r();
+	dieid_num_r();
 	return 0;
 }
 
diff --git a/board/omap3/zoom2/zoom2.h b/board/omap3/zoom2/zoom2.h
index cae8a7a..b12b0fa 100644
--- a/board/omap3/zoom2/zoom2.h
+++ b/board/omap3/zoom2/zoom2.h
@@ -32,6 +32,15 @@ const omap3_sysinfo sysinfo = {
 	"NAND",
 };
 
+typedef enum {
+	ZOOM2_REVISION_UNKNOWN = 0,
+	ZOOM2_REVISION_ALPHA,
+	ZOOM2_REVISION_BETA,
+	ZOOM2_REVISION_PRODUCTION
+} ZOOM2_REVISION;
+
+extern ZOOM2_REVISION zoom2_get_revision(void);
+
 /*
  * IEN	- Input Enable
  * IDIS	- Input Disable
-- 
1.6.0.5

[U-Boot] [PATCH 3/3] Beagle Convert the board version detection to use the OMAP3 GPIO interface.

[Tom Rix]

There is no new functionality in the change.

This change is a conversion from the using raw register access to using
the OMAP3 GPIO API described in doc/README.omap3.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
---
 board/omap3/beagle/beagle.c |   32 ++++++++++++++++++--------------
 1 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/board/omap3/beagle/beagle.c b/board/omap3/beagle/beagle.c
index 7eb70ee..d268e18 100644
--- a/board/omap3/beagle/beagle.c
+++ b/board/omap3/beagle/beagle.c
@@ -33,6 +33,7 @@
 #include <asm/io.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/arch/gpio.h>
 #include <asm/mach-types.h>
 #include "beagle.h"
 
@@ -57,7 +58,7 @@ int board_init(void)
 
 /*
  * Routine: beagle_get_revision
- * Description: Return revision of the BeagleBoard this code is running on.
+ * Description: Return the revision of the BeagleBoard this code is running on.
  *              If it is a revision Ax/Bx board, this function returns 0,
  *              on a revision C board you will get a 1.
  */
@@ -74,22 +75,25 @@ int beagle_get_revision(void)
  */
 void beagle_identify(void)
 {
-	gpio_t *gpio6_base = (gpio_t *)OMAP34XX_GPIO6_BASE;
-
-	/* Configure GPIO 171 as input */
-	writel(readl(&gpio6_base->oe) | GPIO11, &gpio6_base->oe);
-
-	/* Get value of GPIO 171 */
-	beagle_revision_c = readl(&gpio6_base->datain) & BOARD_REVISION_MASK;
+	beagle_revision_c = 0;
+	if (!omap_request_gpio(171)) {
+		unsigned int val;
+
+		omap_set_gpio_direction(171, 1);
+		val = omap_get_gpio_datain(171);
+		omap_free_gpio(171);
+
+		if (val)
+			beagle_revision_c = 0;
+		else
+			beagle_revision_c = 1;
+	}
 
 	printf("Board revision ");
-	if (beagle_revision_c) {
-		printf("Ax/Bx\n");
-		beagle_revision_c = 0;
-	} else {
+	if (beagle_revision_c)
 		printf("C\n");
-		beagle_revision_c = 1;
-	}
+	else
+		printf("Ax/Bx\n");
 }
 
 /*
-- 
1.6.0.5

[U-Boot] [PATCH 1/3] Fix a typo in the instructions on using omap3's gpio interface.

[Jean-Christophe PLAGNIOL-VILLARD]

On 20:53 Tue 02 Jun     , Tom Rix wrote:
> Using the example for reading a gpio, shows the problem.
> NULL should be the gpio number.
> 
> Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
> ---
>  doc/README.omap3 |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/doc/README.omap3 b/doc/README.omap3
> index e05e816..66e781d 100644
> --- a/doc/README.omap3
> +++ b/doc/README.omap3
> @@ -106,7 +106,7 @@ To clear a bit :
>  To read a bit :
>  
>  	if (!omap_request_gpio(N)) {
> -		omap_set_gpio_direction(NULL, 1);
> +		omap_set_gpio_direction(N, 1);
>  		val = omap_get_gpio_datain(N);
>  		omap_free_gpio(N);
>  	}
> -- 
> 1.6.0.5

On 20:53 Tue 02 Jun     , Tom Rix wrote:
> There are currently 3 versions of the zoom2 board.
> The production board, that is currently being released.
> The beta board, similar in form to the production board but not released.
> The alpha board, a set of PCBs with a very limited circulation.
> 
> GPIO 94 is used to determine the version of the board. If GPIO 94 is clear,
> the board is a production board, otherwise it is a beta board.
> 
> The alpha board will likely be mistaken for a beta board.  An alpha board
> was unavailible for testing.
> 
> This has been tested on the beta and production boards.
> 
> Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
> ---
>  board/omap3/zoom2/zoom2.c |   62 ++++++++++++++++++++++++++++++++++++++++++--
>  board/omap3/zoom2/zoom2.h |    9 ++++++
>  2 files changed, 68 insertions(+), 3 deletions(-)
> 
> diff --git a/board/omap3/zoom2/zoom2.c b/board/omap3/zoom2/zoom2.c
> index e5c248d..94231da 100644
> --- a/board/omap3/zoom2/zoom2.c
> +++ b/board/omap3/zoom2/zoom2.c
> @@ -33,6 +33,7 @@
>  #include <status_led.h>
>  #endif
>  #include <asm/io.h>
> +#include <asm/arch/gpio.h>
>  #include <asm/arch/mem.h>
>  #include <asm/arch/mux.h>
>  #include <asm/arch/sys_proto.h>
> @@ -60,6 +61,60 @@ static u32 gpmc_serial_TL16CP754C[GPMC_MAX_REG] = {
>  	0x1D0904C4, 0
>  };
>  
> +/* Used to track the revision of the board */
> +static ZOOM2_REVISION zoom2_revision = ZOOM2_REVISION_UNKNOWN;
no uppercase please
if you are ok I'll remane it before apply

static zoom2_revision revision = ZOOM2_REVISION_UNKNOWN;

Best Regards,
J.

[U-Boot] [PATCH 1/3] Fix a typo in the instructions on using omap3's gpio interface.

[Jean-Christophe PLAGNIOL-VILLARD]

On 09:58 Fri 29 May     , Tom Rix wrote:
> Using the example for reading a gpio, shows the problem.
> NULL should be the gpio number.
> 
> Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
> ---
applied to arm/next

Best Regards,
J.

[U-Boot] [PATCH 3/3] Beagle Convert the board version detection to use the OMAP3 GPIO interface.

[Jean-Christophe PLAGNIOL-VILLARD]

On 20:53 Tue 02 Jun     , Tom Rix wrote:
> There is no new functionality in the change.
> 
> This change is a conversion from the using raw register access to using
> the OMAP3 GPIO API described in doc/README.omap3.
> 
> Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
> ---
applied to arm/next

Best Regards,
J.

[U-Boot] [PATCH 1/3] Fix a typo in the instructions on using omap3's gpio interface.

[Tom]

Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 20:53 Tue 02 Jun     , Tom Rix wrote:
>   
>> Using the example for reading a gpio, shows the problem.
>> NULL should be the gpio number.
>>     
<snip>
>>  
>> +/* Used to track the revision of the board */
>> +static ZOOM2_REVISION zoom2_revision = ZOOM2_REVISION_UNKNOWN;
>>     
> no uppercase please
> if you are ok I'll remane it before apply
>
> static zoom2_revision revision = ZOOM2_REVISION_UNKNOWN;
>
>   
Please do.
Thanks
Tom

> Best Regards,
> J.
>   

[U-Boot] [PATCH 2/3 V3] ZOOM2 detect the version of the zoom2 board at runtime.

[Jean-Christophe PLAGNIOL-VILLARD]

From: Tom Rix <Tom.Rix@windriver.com>

There are currently 3 versions of the zoom2 board.
The production board, that is currently being released.
The beta board, similar in form to the production board but not released.
The alpha board, a set of PCBs with a very limited circulation.

GPIO 94 is used to determine the version of the board. If GPIO 94 is clear,
the board is a production board, otherwise it is a beta board.

The alpha board will likely be mistaken for a beta board.  An alpha board
was unavailible for testing.

This has been tested on the beta and production boards.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 board/omap3/zoom2/zoom2.c |   62 ++++++++++++++++++++++++++++++++++++++++++--
 board/omap3/zoom2/zoom2.h |    9 ++++++
 2 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/board/omap3/zoom2/zoom2.c b/board/omap3/zoom2/zoom2.c
index e5c248d..08fdafb 100644
--- a/board/omap3/zoom2/zoom2.c
+++ b/board/omap3/zoom2/zoom2.c
@@ -33,6 +33,7 @@
 #include <status_led.h>
 #endif
 #include <asm/io.h>
+#include <asm/arch/gpio.h>
 #include <asm/arch/mem.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/sys_proto.h>
@@ -60,6 +61,60 @@ static u32 gpmc_serial_TL16CP754C[GPMC_MAX_REG] = {
 	0x1D0904C4, 0
 };
 
+/* Used to track the revision of the board */
+static zoom2_revision revision = ZOOM2_REVISION_UNKNOWN;
+
+/*
+ * Routine: zoom2_get_revision
+ * Description: Return the revision of the Zoom2 this code is running on.
+ */
+zoom2_revision zoom2_get_revision(void)
+{
+	return revision;
+}
+
+/*
+ * Routine: zoom2_identify
+ * Description: Detect which version of Zoom2 we are running on.
+ */
+void zoom2_identify(void)
+{
+	/*
+	 * To check for production board vs beta board,
+	 * check if gpio 94 is clear.
+	 *
+	 * No way yet to check for alpha board identity.
+	 * Alpha boards were produced in very limited quantities
+	 * and they are not commonly used.  They are mentioned here
+	 * only for completeness.
+	 */
+	if (!omap_request_gpio(94)) {
+		unsigned int val;
+
+		omap_set_gpio_direction(94, 1);
+		val = omap_get_gpio_datain(94);
+		omap_free_gpio(94);
+
+		if (val)
+			revision = ZOOM2_REVISION_BETA;
+		else
+			revision = ZOOM2_REVISION_PRODUCTION;
+	}
+
+	printf("Board revision ");
+	switch (revision) {
+	case ZOOM2_REVISION_PRODUCTION:
+		printf("Production\n");
+		break;
+	case ZOOM2_REVISION_BETA:
+		printf("Beta\n");
+		break;
+	default:
+		printf("Unknown\n");
+		break;
+	}
+}
+
 /*
  * Routine: board_init
  * Description: Early hardware init.
@@ -96,10 +151,11 @@ int board_init (void)
  * Routine: misc_init_r
  * Description: Configure zoom board specific configurations
  */
-int misc_init_r (void)
+int misc_init_r(void)
 {
-	power_init_r ();
-	dieid_num_r ();
+	zoom2_identify();
+	power_init_r();
+	dieid_num_r();
 	return 0;
 }
 
diff --git a/board/omap3/zoom2/zoom2.h b/board/omap3/zoom2/zoom2.h
index cae8a7a..a21d1d6 100644
--- a/board/omap3/zoom2/zoom2.h
+++ b/board/omap3/zoom2/zoom2.h
@@ -32,6 +32,15 @@ const omap3_sysinfo sysinfo = {
 	"NAND",
 };
 
+typedef enum {
+	ZOOM2_REVISION_UNKNOWN = 0,
+	ZOOM2_REVISION_ALPHA,
+	ZOOM2_REVISION_BETA,
+	ZOOM2_REVISION_PRODUCTION
+} zoom2_revision;
+
+zoom2_revision zoom2_get_revision(void);
+
 /*
  * IEN	- Input Enable
  * IDIS	- Input Disable
-- 
1.6.2.4

[U-Boot] [PATCH 2/3 V3] ZOOM2 detect the version of the zoom2 board at runtime.

[Tom]

Jean-Christophe PLAGNIOL-VILLARD wrote:
> From: Tom Rix <Tom.Rix@windriver.com>
>
>   
<snip>
> This has been tested on the beta and production boards.
>
> Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
> ---
> <snip>
>  
> +typedef enum {
> +	ZOOM2_REVISION_UNKNOWN = 0,
> +	ZOOM2_REVISION_ALPHA,
> +	ZOOM2_REVISION_BETA,
> +	ZOOM2_REVISION_PRODUCTION
> +} zoom2_revision;
> +
> +zoom2_revision zoom2_get_revision(void);
> +
>   
Looks fine.
Thanks!
Tom

>  /*
>   * IEN	- Input Enable
>   * IDIS	- Input Disable
>