[U-Boot] [PATCH 1/3] powerpc: mpc52xx: a4m072: Convert to generic board

[U-Boot] [PATCH 1/3] powerpc: mpc52xx: a4m072: Convert to generic board

[Stefan Roese]

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
---
 include/configs/a4m072.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/configs/a4m072.h b/include/configs/a4m072.h
index cc88ac1..3c67655 100644
--- a/include/configs/a4m072.h
+++ b/include/configs/a4m072.h
@@ -19,6 +19,8 @@
 #define CONFIG_MPC5200		1	/* This is a MPC5200 CPU */
 #define CONFIG_A4M072		1	/* ... on A4M072 board */
 #define CONFIG_MPC5200_DDR	1	/* ... use DDR RAM */
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_SYS_GENERIC_BOARD
 
 #define CONFIG_SYS_TEXT_BASE	0xFE000000
 
-- 
2.1.3

[U-Boot] [PATCH 2/3] powerpc: mpc52xx: a3m071/a4m2k: Convert to generic board

[Stefan Roese]

a3m071 and a4m2k share one config header. So adding the generic board defines
in this one file is enough to convert both boards.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
---
 include/configs/a3m071.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/configs/a3m071.h b/include/configs/a3m071.h
index a4050f3..120fdc6 100644
--- a/include/configs/a3m071.h
+++ b/include/configs/a3m071.h
@@ -14,6 +14,8 @@
 
 #define CONFIG_MPC5200
 #define CONFIG_A3M071			/* A3M071 board */
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_SYS_GENERIC_BOARD
 
 #define	CONFIG_SYS_TEXT_BASE	0x01000000	/* boot low for 32 MiB boards */
 
-- 
2.1.3

[U-Boot] [PATCH 3/3] powerpc: mpc52xx: Clear GD in the main U-Boot stage for SPL usage

[Stefan Roese]

When an MPC5200 based board is used with SPL support, the main
U-Boot needs to clear the GD (global data) struct again.

Otherwise the generic board init code in board_init_f (when
CONFIG_SYS_GENERIC_BOARD is defined) will not initialize all
GD variables correctly. Resulting in a hangup on the a4m2k
board.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
---
 arch/powerpc/cpu/mpc5xxx/start.S | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/powerpc/cpu/mpc5xxx/start.S b/arch/powerpc/cpu/mpc5xxx/start.S
index 02c706e..94eb0d3 100644
--- a/arch/powerpc/cpu/mpc5xxx/start.S
+++ b/arch/powerpc/cpu/mpc5xxx/start.S
@@ -76,6 +76,21 @@ _start:
 	 * been done in the SPL u-boot version.
 	 */
 	GET_GOT			/* initialize GOT access		*/
+
+	/*
+	 * The GD (global data) struct needs to get cleared. Lets do
+	 * this by calling memset().
+	 * This function is called when the platform is build with SPL
+	 * support from the main (full-blown) U-Boot. And the GD needs
+	 * to get cleared (again) so that the following generic
+	 * board support code, defined via CONFIG_SYS_GENERIC_BOARD,
+	 * initializes all variables correctly.
+	 */
+	mr	r3, r2		/* parameter 1:	 GD pointer		*/
+	li	r4,0		/* parameter 2:	 value to fill		*/
+	li	r5,GD_SIZE	/* parameter 3:	 count			*/
+	bl	memset
+
 	bl	board_init_f	/* run 1st part of board init code (in Flash)*/
 	/* NOTREACHED - board_init_f() does not return */
 #else
-- 
2.1.3

[U-Boot] [PATCH 1/3] powerpc: mpc52xx: a4m072: Convert to generic board

[Wolfgang Denk]

Dear Stefan Roese,

In message <1416386268-31398-1-git-send-email-sr@denx.de> you wrote:
> Signed-off-by: Stefan Roese <sr@denx.de>
> Cc: Wolfgang Denk <wd@denx.de>
> ---
>  include/configs/a4m072.h | 2 ++
>  1 file changed, 2 insertions(+)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Remember that the best relationship is one in  which  your  love  for
each other exceeds your need for each other.             - Dalai Lama

[U-Boot] [PATCH 2/3] powerpc: mpc52xx: a3m071/a4m2k: Convert to generic board

[Wolfgang Denk]

Dear Stefan Roese,

In message <1416386268-31398-2-git-send-email-sr@denx.de> you wrote:
> a3m071 and a4m2k share one config header. So adding the generic board defines
> in this one file is enough to convert both boards.
> 
> Signed-off-by: Stefan Roese <sr@denx.de>
> Cc: Wolfgang Denk <wd@denx.de>
> ---
>  include/configs/a3m071.h | 2 ++
>  1 file changed, 2 insertions(+)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
For every complex problem, there is a solution that is simple,  neat,
and wrong.                                               - Mark Twain

[U-Boot] [PATCH 3/3] powerpc: mpc52xx: Clear GD in the main U-Boot stage for SPL usage

[Wolfgang Denk]

Dear Stefan Roese,

In message <1416386268-31398-3-git-send-email-sr@denx.de> you wrote:
> When an MPC5200 based board is used with SPL support, the main
> U-Boot needs to clear the GD (global data) struct again.
> 
> Otherwise the generic board init code in board_init_f (when
> CONFIG_SYS_GENERIC_BOARD is defined) will not initialize all
> GD variables correctly. Resulting in a hangup on the a4m2k
> board.
> 
> Signed-off-by: Stefan Roese <sr@denx.de>
> Cc: Wolfgang Denk <wd@denx.de>
> ---
>  arch/powerpc/cpu/mpc5xxx/start.S | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)

Applied, thanks.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Do not simplify the design of a program if a way can be found to make
it complex and wonderful.