omap2/3/4: ioremap omap_globals module

This is a clean-up patch towards dynamic allocation of IO space
instead of using harcoded macros to calculate virtual addresses.

Also update the sdrc, prcm and control module to allocate
iospace dynamically

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

5 files changed, 57 insertions, 32 deletions

diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index cdd1f35..43f8a33 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -140,7 +140,11 @@ static struct omap3_control_regs control_context;
 
 void __init omap2_set_globals_control(struct omap_globals *omap2_globals)
 {
-	omap2_ctrl_base = omap2_globals->ctrl;
+	/* Static mapping, never released */
+	if (omap2_globals->ctrl) {
+		omap2_ctrl_base = ioremap(omap2_globals->ctrl, SZ_4K);
+		WARN_ON(!omap2_ctrl_base);
+	}
 }
 
 void __iomem *omap_ctrl_base_get(void)
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
index e8e121a..338d5f6 100644
--- a/arch/arm/mach-omap2/prcm.c
+++ b/arch/arm/mach-omap2/prcm.c
@@ -279,9 +279,19 @@ int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, const char *name)
 
 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;
+	/* Static mapping, never released */
+	if (omap2_globals->prm) {
+		prm_base = ioremap(omap2_globals->prm, SZ_8K);
+		WARN_ON(!prm_base);
+	}
+	if (omap2_globals->cm) {
+		cm_base = ioremap(omap2_globals->cm, SZ_8K);
+		WARN_ON(!cm_base);
+	}
+	if (omap2_globals->cm2) {
+		cm2_base = ioremap(omap2_globals->cm2, SZ_8K);
+		WARN_ON(!cm2_base);
+	}
 }
 
 #ifdef CONFIG_ARCH_OMAP3
diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c
index cbfbd14..4c65f56 100644
--- a/arch/arm/mach-omap2/sdrc.c
+++ b/arch/arm/mach-omap2/sdrc.c
@@ -119,8 +119,15 @@ int omap2_sdrc_get_params(unsigned long r,
 
 void __init omap2_set_globals_sdrc(struct omap_globals *omap2_globals)
 {
-	omap2_sdrc_base = omap2_globals->sdrc;
-	omap2_sms_base = omap2_globals->sms;
+	/* Static mapping, never released */
+	if (omap2_globals->sdrc) {
+		omap2_sdrc_base = ioremap(omap2_globals->sdrc, SZ_64K);
+		WARN_ON(!omap2_sdrc_base);
+	}
+	if (omap2_globals->sms) {
+		omap2_sms_base = ioremap(omap2_globals->sms, SZ_64K);
+		WARN_ON(!omap2_sms_base);
+	}
 }
 
 /**
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 4f29e8c..088c1a0 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -256,11 +256,11 @@ static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
 static struct omap_globals omap242x_globals = {
 	.class	= OMAP242X_CLASS,
 	.tap	= OMAP2_L4_IO_ADDRESS(0x48014000),
-	.sdrc	= OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
-	.sms	= OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE),
-	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP2420_CTRL_BASE),
-	.prm	= OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
-	.cm	= OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
+	.sdrc	= OMAP2420_SDRC_BASE,
+	.sms	= OMAP2420_SMS_BASE,
+	.ctrl	= OMAP2420_CTRL_BASE,
+	.prm	= OMAP2420_PRM_BASE,
+	.cm	= OMAP2420_CM_BASE,
 	.uart1_phys	= OMAP2_UART1_BASE,
 	.uart2_phys	= OMAP2_UART2_BASE,
 	.uart3_phys	= OMAP2_UART3_BASE,
@@ -277,11 +277,11 @@ void __init omap2_set_globals_242x(void)
 static struct omap_globals omap243x_globals = {
 	.class	= OMAP243X_CLASS,
 	.tap	= OMAP2_L4_IO_ADDRESS(0x4900a000),
-	.sdrc	= OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
-	.sms	= OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE),
-	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
-	.prm	= OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
-	.cm	= OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
+	.sdrc	= OMAP243X_SDRC_BASE,
+	.sms	= OMAP243X_SMS_BASE,
+	.ctrl	= OMAP243X_CTRL_BASE,
+	.prm	= OMAP2430_PRM_BASE,
+	.cm	= OMAP2430_CM_BASE,
 	.uart1_phys	= OMAP2_UART1_BASE,
 	.uart2_phys	= OMAP2_UART2_BASE,
 	.uart3_phys	= OMAP2_UART3_BASE,
@@ -298,11 +298,11 @@ void __init omap2_set_globals_243x(void)
 static struct omap_globals omap3_globals = {
 	.class	= OMAP343X_CLASS,
 	.tap	= OMAP2_L4_IO_ADDRESS(0x4830A000),
-	.sdrc	= OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
-	.sms	= OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE),
-	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
-	.prm	= OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
-	.cm	= OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
+	.sdrc	= OMAP343X_SDRC_BASE,
+	.sms	= OMAP343X_SMS_BASE,
+	.ctrl	= OMAP343X_CTRL_BASE,
+	.prm	= OMAP3430_PRM_BASE,
+	.cm	= OMAP3430_CM_BASE,
 	.uart1_phys	= OMAP3_UART1_BASE,
 	.uart2_phys	= OMAP3_UART2_BASE,
 	.uart3_phys	= OMAP3_UART3_BASE,
@@ -325,10 +325,10 @@ void __init omap2_set_globals_36xx(void)
 static struct omap_globals omap4_globals = {
 	.class	= OMAP443X_CLASS,
 	.tap	= OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
-	.ctrl	= OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE),
-	.prm	= OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE),
-	.cm	= OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
-	.cm2	= OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE),
+	.ctrl	= OMAP443X_CTRL_BASE,
+	.prm	= OMAP4430_PRM_BASE,
+	.cm	= OMAP4430_CM_BASE,
+	.cm2	= OMAP4430_CM2_BASE,
 	.uart1_phys	= OMAP4_UART1_BASE,
 	.uart2_phys	= OMAP4_UART2_BASE,
 	.uart3_phys	= OMAP4_UART3_BASE,
diff --git a/arch/arm/plat-omap/include/plat/common.h b/arch/arm/plat-omap/include/plat/common.h
index e04a58e..7556e27 100644
--- a/arch/arm/plat-omap/include/plat/common.h
+++ b/arch/arm/plat-omap/include/plat/common.h
@@ -37,16 +37,20 @@ extern void __iomem *gic_cpu_base_addr;
 extern void omap_map_common_io(void);
 extern struct sys_timer omap_timer;
 
-/* IO bases for various OMAP processors */
+/*
+ * IO bases for various OMAP processors
+ * Except the tap base, rest all the io bases
+ * listed are physical addresses.
+ */
 struct omap_globals {
 	u32		class;		/* OMAP class to detect */
 	void __iomem	*tap;		/* Control module ID code */
-	void __iomem	*sdrc;		/* SDRAM Controller */
-	void __iomem	*sms;		/* SDRAM Memory Scheduler */
-	void __iomem	*ctrl;		/* System Control Module */
-	void __iomem	*prm;		/* Power and Reset Management */
-	void __iomem	*cm;		/* Clock Management */
-	void __iomem	*cm2;
+	unsigned long   sdrc;           /* SDRAM Controller */
+	unsigned long   sms;            /* SDRAM Memory Scheduler */
+	unsigned long   ctrl;           /* System Control Module */
+	unsigned long   prm;            /* Power and Reset Management */
+	unsigned long   cm;             /* Clock Management */
+	unsigned long   cm2;
 	unsigned long	uart1_phys;
 	unsigned long	uart2_phys;
 	unsigned long	uart3_phys;