RE: [PATCH v2 1/6] ARM: OMAP4: PM: Fix the PRM and CM base addresses

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>-----Original Message-----
>From: Aguirre Rodriguez, Sergio Alberto 
>Sent: Wednesday, August 12, 2009 9:15 PM
>To: Nayak, Rajendra; linux-arm-kernel@xxxxxxxxxxxxxxxxxxxxxx
>Cc: linux-omap@xxxxxxxxxxxxxxx; Nayak, Rajendra
>Subject: RE: [PATCH v2 1/6] ARM: OMAP4: PM: Fix the PRM and CM 
>base addresses
>
>Rajendra,
>
>> -----Original Message-----
>> From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
>> owner@xxxxxxxxxxxxxxx] On Behalf Of Rajendra Nayak
>> Sent: Wednesday, August 12, 2009 9:27 AM
>> To: linux-arm-kernel@xxxxxxxxxxxxxxxxxxxxxx
>> Cc: linux-omap@xxxxxxxxxxxxxxx; Nayak, Rajendra
>> Subject: [PATCH v2 1/6] ARM: OMAP4: PM: Fix the PRM and CM 
>base addresses
>> 
>> This patch fixes the PRM and CM base addresses and adds
>> a new CM2 base address for OMAP4
>> 
>> Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
>> ---
>>  arch/arm/mach-omap2/prcm.c                 |    2 ++
>>  arch/arm/plat-omap/common.c                |    2 ++
>>  arch/arm/plat-omap/include/mach/common.h   |    1 +
>>  arch/arm/plat-omap/include/mach/omap44xx.h |    6 ++++--
>>  4 files changed, 9 insertions(+), 2 deletions(-)
>> 
>> diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
>> index f945156..de307fa 100644
>> --- a/arch/arm/mach-omap2/prcm.c
>> +++ b/arch/arm/mach-omap2/prcm.c
>> @@ -27,6 +27,7 @@
>> 
>>  static void __iomem *prm_base;
>>  static void __iomem *cm_base;
>> +static void __iomem *cm2_base;
>> 
>>  u32 omap_prcm_get_reset_sources(void)
>>  {
>> @@ -124,4 +125,5 @@ void __init 
>omap2_set_globals_prcm(struct omap_globals
>> *omap2_globals)
>>  {
>>  	prm_base = omap2_globals->prm;
>>  	cm_base = omap2_globals->cm;
>> +	cm2_base = omap2_globals->cm2;
>>  }
>> diff --git a/arch/arm/plat-omap/common.c 
>b/arch/arm/plat-omap/common.c
>> index ebcf006..e848a12 100644
>> --- a/arch/arm/plat-omap/common.c
>> +++ b/arch/arm/plat-omap/common.c
>> @@ -372,12 +372,14 @@ static struct omap_globals omap4_globals = {
>>  	.ctrl	= OMAP2_IO_ADDRESS(OMAP443X_CTRL_BASE),
>>  	.prm	= OMAP2_IO_ADDRESS(OMAP4430_PRM_BASE),
>>  	.cm	= OMAP2_IO_ADDRESS(OMAP4430_CM_BASE),
>> +	.cm2	= OMAP2_IO_ADDRESS(OMAP4430_CM2_BASE),
>>  };
>> 
>>  void __init omap2_set_globals_443x(void)
>>  {
>>  	omap2_set_globals_tap(&omap4_globals);
>>  	omap2_set_globals_control(&omap4_globals);
>> +	omap2_set_globals_prcm(&omap4_globals);
>>  }
>>  #endif
>> 
>> diff --git a/arch/arm/plat-omap/include/mach/common.h 
>b/arch/arm/plat-
>> omap/include/mach/common.h
>> index fdeab42..878c4f9 100644
>> --- a/arch/arm/plat-omap/include/mach/common.h
>> +++ b/arch/arm/plat-omap/include/mach/common.h
>> @@ -55,6 +55,7 @@ struct omap_globals {
>>  	void __iomem	*ctrl;		/* System Control Module */
>>  	void __iomem	*prm;		/* Power and Reset Management */
>>  	void __iomem	*cm;		/* Clock Management */
>> +	void __iomem	*cm2;
>>  };
>> 
>>  void omap2_set_globals_242x(void);
>> diff --git a/arch/arm/plat-omap/include/mach/omap44xx.h 
>b/arch/arm/plat-
>> omap/include/mach/omap44xx.h
>> index 15dec7f..b46b154 100644
>> --- a/arch/arm/plat-omap/include/mach/omap44xx.h
>> +++ b/arch/arm/plat-omap/include/mach/omap44xx.h
>> @@ -23,8 +23,10 @@
>>  #define L4_EMU_44XX_BASE		0x54000000
>>  #define L3_44XX_BASE			0x44000000
>>  #define OMAP4430_32KSYNCT_BASE		0x4a304000
>> -#define OMAP4430_CM_BASE		0x4a004000
>> -#define OMAP4430_PRM_BASE		0x48306000
>
>> +#define OMAP4430_CM1_BASE		0x4a004000
>> +#define OMAP4430_CM_BASE		OMAP4430_CM1_BASE
>
>Why do you need 2 defines for the same value?

Hi Sergio,
PRCM had just one CM module in OMAP2/3 and OMAP4 has
2 of them , CM1 and CM2. The older CM defines are now mapped to CM1
for OMAP4 and new ones created for CM2.

regards,
Rajendra
>
>Regards,
>Sergio
>
>> +#define OMAP4430_CM2_BASE		0x4a008000
>> +#define OMAP4430_PRM_BASE		0x4a306000
>>  #define OMAP44XX_GPMC_BASE		0x50000000
>>  #define OMAP443X_SCM_BASE		0x4a002000
>>  #define OMAP443X_CTRL_BASE		OMAP443X_SCM_BASE
>> --
>> 1.5.4.7
>> 
>> --
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