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List:       linux-sh
Subject:    [PATCH 02/03] ARM: mach-shmobile: sh7372 A3SP prototype support
From:       Magnus Damm <magnus.damm () gmail ! com>
Date:       2011-06-30 9:47:10
Message-ID: 20110630094710.10442.59532.sendpatchset () t400s
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From: Magnus Damm <damm@opensource.se>

Prototype code to add support for A3SP on sh7372.

Lightly tested on Mackerel, adding AP4EVB support is
still on the TODO.

Also, please note that using the serial console for
output from the power domain control callbacks is
not supported due to the usage of Runtime PM in the
SCIF serial console driver code.

Not suitable for merge until we have QoS support.

Not-yet-signed-off-by: Magnus Damm <damm@opensource.se>
---

 arch/arm/mach-shmobile/board-mackerel.c      |    8 ++++++++
 arch/arm/mach-shmobile/include/mach/sh7372.h |    1 +
 arch/arm/mach-shmobile/pm-sh7372.c           |   23 +++++++++++++++++------
 arch/arm/mach-shmobile/setup-sh7372.c        |   13 +++++++++++++
 4 files changed, 39 insertions(+), 6 deletions(-)

--- 0001/arch/arm/mach-shmobile/board-mackerel.c
+++ work/arch/arm/mach-shmobile/board-mackerel.c	2011-06-30 16:28:01.000000000 +0900
@@ -1584,6 +1584,14 @@ static void __init mackerel_init(void)
 
 	sh7372_add_device_to_domain(&sh7372_a4lc, &lcdc_device);
 	sh7372_add_device_to_domain(&sh7372_a4lc, &hdmi_lcdc_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &usbhs0_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &usbhs1_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &sh_mmcif_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi0_device);
+#if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
+	sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi1_device);
+#endif
+	sh7372_add_device_to_domain(&sh7372_a3sp, &sdhi2_device);
 
 	hdmi_init_pm_clock();
 	sh7372_pm_init();
--- 0001/arch/arm/mach-shmobile/include/mach/sh7372.h
+++ work/arch/arm/mach-shmobile/include/mach/sh7372.h	2011-06-30 16:28:01.000000000 +0900
@@ -487,6 +487,7 @@ static inline struct sh7372_pm_domain *t
 extern struct sh7372_pm_domain sh7372_a4lc;
 extern struct sh7372_pm_domain sh7372_a3rv;
 extern struct sh7372_pm_domain sh7372_a3ri;
+extern struct sh7372_pm_domain sh7372_a3sp;
 extern struct sh7372_pm_domain sh7372_a3sg;
 
 extern void sh7372_init_pm_domain(struct sh7372_pm_domain *sh7372_pd);
--- 0001/arch/arm/mach-shmobile/pm-sh7372.c
+++ work/arch/arm/mach-shmobile/pm-sh7372.c	2011-06-30 16:32:45.000000000 +0900
@@ -7,7 +7,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
-
+#define DEBUG
 #include <linux/pm.h>
 #include <linux/suspend.h>
 #include <linux/cpuidle.h>
@@ -28,10 +28,10 @@
 #define SYSTBCR 0xe6150024
 #define SBAR 0xe6180020
 #define APARMBAREA 0xe6f10020
-
 #define SPDCR 0xe6180008
 #define SWUCR 0xe6180014
 #define PSTR 0xe6180080
+#define PDNSEL 0xe6180254
 
 #define PSTR_RETRIES 100
 #define PSTR_DELAY_US 10
@@ -55,8 +55,10 @@ static int pd_power_down(struct generic_
 		}
 	}
 
-	pr_debug("sh7372 power domain down 0x%08x -> PSTR = 0x%08x\n",
-		 mask, __raw_readl(PSTR));
+	/* we cannot output debug message for A3SP */
+	if (genpd != &sh7372_a3sp.genpd)
+		pr_debug("sh7372 power domain down 0x%08x -> PSTR = 0x%08x\n",
+			 mask, __raw_readl(PSTR));
 
 	return 0;
 }
@@ -85,8 +87,10 @@ static int pd_power_up(struct generic_pm
 		ret = -EIO;
 
  out:
-	pr_debug("sh7372 power domain up 0x%08x -> PSTR = 0x%08x\n",
-		 mask, __raw_readl(PSTR));
+	/* we cannot output debug message for A3SP */
+	if (genpd != &sh7372_a3sp.genpd)
+		pr_debug("sh7372 power domain up 0x%08x -> PSTR = 0x%08x\n",
+			 mask, __raw_readl(PSTR));
 
 	return ret;
 }
@@ -127,6 +131,10 @@ struct sh7372_pm_domain sh7372_a3ri = {
 	.bit_shift = 8,
 };
 
+struct sh7372_pm_domain sh7372_a3sp = {
+	.bit_shift = 11,
+};
+
 struct sh7372_pm_domain sh7372_a3sg = {
 	.bit_shift = 13,
 };
@@ -211,6 +219,9 @@ void __init sh7372_pm_init(void)
 	__raw_writel(0x0000a501, DBGREG9);
 	__raw_writel(0x00000000, DBGREG1);
 
+	/* do not convert A3SM, A3SP, A3SG, A4R power down into A4S */
+	__raw_writel(0, PDNSEL);
+
 	sh7372_suspend_init();
 	sh7372_cpuidle_init();
 }
--- 0003/arch/arm/mach-shmobile/setup-sh7372.c
+++ work/arch/arm/mach-shmobile/setup-sh7372.c	2011-06-30 16:28:01.000000000 +0900
@@ -845,6 +845,7 @@ void __init sh7372_add_standard_devices(
 	sh7372_init_pm_domain(&sh7372_a3rv);
 	sh7372_init_pm_domain(&sh7372_a3ri);
 	sh7372_init_pm_domain(&sh7372_a3sg);
+	sh7372_init_pm_domain(&sh7372_a3sp);
 
 	platform_add_devices(sh7372_early_devices,
 			    ARRAY_SIZE(sh7372_early_devices));
@@ -853,6 +854,18 @@ void __init sh7372_add_standard_devices(
 			    ARRAY_SIZE(sh7372_late_devices));
 
 	sh7372_add_device_to_domain(&sh7372_a3rv, &vpu_device);
+
+	sh7372_add_device_to_domain(&sh7372_a3sp, &scif0_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &scif1_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &scif2_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &scif3_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &scif4_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &scif5_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &scif6_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &iic1_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &dma0_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &dma1_device);
+	sh7372_add_device_to_domain(&sh7372_a3sp, &dma2_device);
 }
 
 void __init sh7372_add_early_devices(void)
--
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