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Commit 61b464ae authored by Olof Johansson's avatar Olof Johansson
Browse files

Merge tag 'at91-soc' of git://github.com/at91linux/linux-at91 into late/cleanup 

From Nicolas Ferre:
Little modification in SoC presentation in kernel log.
Removing of a long-standing warning in sam9263 PM code.

* tag 'at91-soc' of git://github.com/at91linux/linux-at91

:
  ARM: at91: suspend both memory controllers on at91sam9263
  ARM: at91: change "Unknown" qualifier SoC subtype handling

Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents a71efd61 f5fa4098

arch/arm/mach-at91/cpuidle.c

+2 −0
Original line number Diff line number Diff line
@@ -38,6 +38,8 @@ static int at91_enter_idle(struct cpuidle_device *dev, 
		at91rm9200_standby();

	else if (cpu_is_at91sam9g45())

		at91sam9g45_standby();

	else if (cpu_is_at91sam9263())

		at91sam9263_standby();

	else

		at91sam9_standby();

arch/arm/mach-at91/include/mach/cpu.h

+6 −3
Original line number Diff line number Diff line
@@ -86,7 +86,7 @@ enum at91_soc_type { 
	AT91_SOC_SAMA5D3,



	/* Unknown type */

	AT91_SOC_NONE

	AT91_SOC_UNKNOWN,

};



enum at91_soc_subtype {
@@ -107,8 +107,11 @@ enum at91_soc_subtype { 
	AT91_SOC_SAMA5D31, AT91_SOC_SAMA5D33, AT91_SOC_SAMA5D34,

	AT91_SOC_SAMA5D35,



	/* No subtype for this SoC */

	AT91_SOC_SUBTYPE_NONE,



	/* Unknown subtype */

	AT91_SOC_SUBTYPE_NONE

	AT91_SOC_SUBTYPE_UNKNOWN,

};



struct at91_socinfo {
@@ -122,7 +125,7 @@ const char *at91_get_soc_subtype(struct at91_socinfo *c); 


static inline int at91_soc_is_detected(void)

{

	return at91_soc_initdata.type != AT91_SOC_NONE;

	return at91_soc_initdata.type != AT91_SOC_UNKNOWN;

}



#ifdef CONFIG_SOC_AT91RM9200

arch/arm/mach-at91/pm.c

+2 −0
Original line number Diff line number Diff line
@@ -270,6 +270,8 @@ static int at91_pm_enter(suspend_state_t state) 
				at91rm9200_standby();

			else if (cpu_is_at91sam9g45())

				at91sam9g45_standby();

			else if (cpu_is_at91sam9263())

				at91sam9263_standby();

			else

				at91sam9_standby();

			break;

arch/arm/mach-at91/pm.h

+24 −6
Original line number Diff line number Diff line
@@ -70,13 +70,31 @@ static inline void at91sam9g45_standby(void) 
	at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);

}



#ifdef CONFIG_SOC_AT91SAM9263

/*

 * FIXME either or both the SDRAM controllers (EB0, EB1) might be in use;

 * handle those cases both here and in the Suspend-To-RAM support.

/* We manage both DDRAM/SDRAM controllers, we need more than one value to

 * remember.

 */

#warning Assuming EB1 SDRAM controller is *NOT* used

#endif

static inline void at91sam9263_standby(void)

{

	u32 lpr0, lpr1;

	u32 saved_lpr0, saved_lpr1;



	saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR);

	lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB;

	lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH;



	saved_lpr0 = at91_ramc_read(0, AT91_SDRAMC_LPR);

	lpr0 = saved_lpr0 & ~AT91_SDRAMC_LPCB;

	lpr0 |= AT91_SDRAMC_LPCB_SELF_REFRESH;



	/* self-refresh mode now */

	at91_ramc_write(0, AT91_SDRAMC_LPR, lpr0);

	at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1);



	cpu_do_idle();



	at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr0);

	at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);

}



static inline void at91sam9_standby(void)

{

arch/arm/mach-at91/setup.c

+15 −7
Original line number Diff line number Diff line
@@ -105,28 +105,32 @@ static void __init soc_detect(u32 dbgu_base) 
	switch (socid) {

	case ARCH_ID_AT91RM9200:

		at91_soc_initdata.type = AT91_SOC_RM9200;

		if (at91_soc_initdata.subtype == AT91_SOC_SUBTYPE_NONE)

		if (at91_soc_initdata.subtype == AT91_SOC_SUBTYPE_UNKNOWN)

			at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;

		at91_boot_soc = at91rm9200_soc;

		break;



	case ARCH_ID_AT91SAM9260:

		at91_soc_initdata.type = AT91_SOC_SAM9260;

		at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

		at91_boot_soc = at91sam9260_soc;

		break;



	case ARCH_ID_AT91SAM9261:

		at91_soc_initdata.type = AT91_SOC_SAM9261;

		at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

		at91_boot_soc = at91sam9261_soc;

		break;



	case ARCH_ID_AT91SAM9263:

		at91_soc_initdata.type = AT91_SOC_SAM9263;

		at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

		at91_boot_soc = at91sam9263_soc;

		break;



	case ARCH_ID_AT91SAM9G20:

		at91_soc_initdata.type = AT91_SOC_SAM9G20;

		at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

		at91_boot_soc = at91sam9260_soc;

		break;
@@ -139,6 +143,7 @@ static void __init soc_detect(u32 dbgu_base) 


	case ARCH_ID_AT91SAM9RL64:

		at91_soc_initdata.type = AT91_SOC_SAM9RL;

		at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

		at91_boot_soc = at91sam9rl_soc;

		break;
@@ -161,6 +166,7 @@ static void __init soc_detect(u32 dbgu_base) 
	/* at91sam9g10 */

	if ((socid & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10) {

		at91_soc_initdata.type = AT91_SOC_SAM9G10;

		at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

		at91_boot_soc = at91sam9261_soc;

	}

	/* at91sam9xe */
@@ -242,7 +248,7 @@ static const char *soc_name[] = { 
	[AT91_SOC_SAM9X5]	= "at91sam9x5",

	[AT91_SOC_SAM9N12]	= "at91sam9n12",

	[AT91_SOC_SAMA5D3]	= "sama5d3",

	[AT91_SOC_NONE]		= "Unknown"

	[AT91_SOC_UNKNOWN]	= "Unknown",

};



const char *at91_get_soc_type(struct at91_socinfo *c)
@@ -268,7 +274,8 @@ static const char *soc_subtype_name[] = { 
	[AT91_SOC_SAMA5D33]	= "sama5d33",

	[AT91_SOC_SAMA5D34]	= "sama5d34",

	[AT91_SOC_SAMA5D35]	= "sama5d35",

	[AT91_SOC_SUBTYPE_NONE]	= "Unknown"

	[AT91_SOC_SUBTYPE_NONE]	= "None",

	[AT91_SOC_SUBTYPE_UNKNOWN] = "Unknown",

};



const char *at91_get_soc_subtype(struct at91_socinfo *c)
@@ -282,8 +289,8 @@ void __init at91_map_io(void) 
	/* Map peripherals */

	iotable_init(&at91_io_desc, 1);



	at91_soc_initdata.type = AT91_SOC_NONE;

	at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;

	at91_soc_initdata.type = AT91_SOC_UNKNOWN;

	at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_UNKNOWN;



	soc_detect(AT91_BASE_DBGU0);

	if (!at91_soc_is_detected())
@@ -294,6 +301,7 @@ void __init at91_map_io(void) 


	pr_info("AT91: Detected soc type: %s\n",

		at91_get_soc_type(&at91_soc_initdata));

	if (at91_soc_initdata.subtype != AT91_SOC_SUBTYPE_NONE)

		pr_info("AT91: Detected soc subtype: %s\n",

			at91_get_soc_subtype(&at91_soc_initdata));