ep93xx: move physmap flash registration into core.c

PATCH New H Hartley Sweeten 3 participants 8 messages Apr 15, 2010 – Jun 9, 2010

Subsystems (4)

Arm (32-bit) Arm sub-architectures Arm/Cirrus logic EP93XX Arm architecture Arm/Cirrus logic BK3 machine support

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H Hartley Sweeten

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2010-04-15 01:00 UTC #0 lore raw

PATCH 1/1 ep93xx: move physmap flash registration into core.c

Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.

This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.

Signed-off-by H Hartley Sweeten <[email protected]>

Cc Ryan Mallon <[email protected]>

---

This is based on Russell's linux-arm/devel branch. If accepted it will be rebased as needed when that branch is merged with a stable branch.

 arch/arm/mach-ep93xx/adssphere.c             |   24 +---------------
 arch/arm/mach-ep93xx/core.c                  |   38 ++++++++++++++++++++++++++
 arch/arm/mach-ep93xx/edb93xx.c               |   31 +-------------------
 arch/arm/mach-ep93xx/gesbc9312.c             |   24 +---------------
 arch/arm/mach-ep93xx/include/mach/platform.h |    3 ++
 arch/arm/mach-ep93xx/micro9.c                |   37 ++++++-------------------
 arch/arm/mach-ep93xx/simone.c                |   22 +--------------
 arch/arm/mach-ep93xx/ts72xx.c                |   23 +---------------
 8 files changed, 56 insertions(+), 146 deletions(-)

arch/arm/mach-ep93xx/adssphere.c +1 ~~-23~~

index 3a1a855..f744f67 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data adssphere_flash_data = {
-	.width		= 4,
-};
-
-static struct resource adssphere_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_32M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device adssphere_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &adssphere_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &adssphere_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 static void __init adssphere_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&adssphere_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	ep93xx_register_eth(&adssphere_eth_data, 1);
 }

arch/arm/mach-ep93xx/core.c +38 -0

index 8d3f77e..802d1f2 100644
@@ -29,6 +29,7 @@
 #include <linux/termios.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/serial.h>
+#include <linux/mtd/physmap.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -346,6 +347,43 @@ static struct platform_device ep93xx_ohci_device = {
 
 
 /*************************************************************************
+ * EP93xx physmap'ed flash
+ *************************************************************************/
+static struct physmap_flash_data ep93xx_flash_data;
+
+static struct resource ep93xx_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device ep93xx_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &ep93xx_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &ep93xx_flash_resource,
+};
+
+/**
+ * ep93xx_register_flash() - Register the external flash device.
+ * @width:	bank width in octets
+ * @start:	resource start address
+ * @size:	resource size
+ */
+void __init ep93xx_register_flash(unsigned int width,
+				  resource_size_t start, resource_size_t size)
+{
+	ep93xx_flash_data.width		= width;
+
+	ep93xx_flash_resource.start	= start;
+	ep93xx_flash_resource.end	= start + size - 1;
+
+	platform_device_register(&ep93xx_flash);
+}
+
+
+/*************************************************************************
  * EP93xx ethernet peripheral handling
  *************************************************************************/
 static struct ep93xx_eth_data ep93xx_eth_data;

arch/arm/mach-ep93xx/edb93xx.c +2 ~~-29~~

index 3884182..c2ce903 100644
@@ -27,7 +27,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -38,39 +37,13 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data edb93xx_flash_data;
-
-static struct resource edb93xx_flash_resource = {
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device edb93xx_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &edb93xx_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &edb93xx_flash_resource,
-};
-
-static void __init __edb93xx_register_flash(unsigned int width,
-			resource_size_t start, resource_size_t size)
-{
-	edb93xx_flash_data.width	= width;
-	edb93xx_flash_resource.start	= start;
-	edb93xx_flash_resource.end	= start + size - 1;
-
-	platform_device_register(&edb93xx_flash);
-}
-
 static void __init edb93xx_register_flash(void)
 {
 	if (machine_is_edb9307() || machine_is_edb9312() ||
 	    machine_is_edb9315()) {
-		__edb93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
+		ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	} else {
-		__edb93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 	}
 }

arch/arm/mach-ep93xx/gesbc9312.c +1 ~~-23~~

index a809618..d97168c 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data gesbc9312_flash_data = {
-	.width		= 4,
-};
-
-static struct resource gesbc9312_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device gesbc9312_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &gesbc9312_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &gesbc9312_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 static void __init gesbc9312_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&gesbc9312_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&gesbc9312_eth_data, 0);
 }

arch/arm/mach-ep93xx/include/mach/platform.h +3 -0

index b663390..ff9ccfc 100644
@@ -41,6 +41,9 @@ static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
 
 unsigned int ep93xx_chip_revision(void);
 
+void ep93xx_register_flash(unsigned int width,
+			   resource_size_t start, resource_size_t size);
+
 void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
 void ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 			 struct i2c_board_info *devices, int num);

arch/arm/mach-ep93xx/micro9.c +9 ~~-28~~

index 1cc911b..2ba7763 100644
@@ -14,7 +14,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/io.h>
 
 #include <mach/hardware.h>

@@ -31,31 +30,6 @@
  * Micro9-Lite uses a separate MTD map driver for flash support
  * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
  *************************************************************************/
-static struct physmap_flash_data micro9_flash_data;
-
-static struct resource micro9_flash_resource = {
-	.start		= EP93XX_CS1_PHYS_BASE,
-	.end		= EP93XX_CS1_PHYS_BASE + SZ_64M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device micro9_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &micro9_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &micro9_flash_resource,
-};
-
-static void __init __micro9_register_flash(unsigned int width)
-{
-	micro9_flash_data.width = width;
-
-	platform_device_register(&micro9_flash);
-}
-
 static unsigned int __init micro9_detect_bootwidth(void)
 {
 	u32 v;

@@ -70,10 +44,17 @@ static unsigned int __init micro9_detect_bootwidth(void)
 
 static void __init micro9_register_flash(void)
 {
+	unsigned int width;
+
 	if (machine_is_micro9())
-		__micro9_register_flash(4);
+		width = 4;
 	else if (machine_is_micro9m() || machine_is_micro9s())
-		__micro9_register_flash(micro9_detect_bootwidth());
+		width = micro9_detect_bootwidth();
+	else
+		width = 0;
+
+	if (width)
+		ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
 }

arch/arm/mach-ep93xx/simone.c +1 ~~-21~~

index 388aec9..cbac7e4 100644
@@ -29,26 +29,6 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-static struct physmap_flash_data simone_flash_data = {
-	.width		= 2,
-};
-
-static struct resource simone_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device simone_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.num_resources	= 1,
-	.resource	= &simone_flash_resource,
-	.dev = {
-		.platform_data	= &simone_flash_data,
-	},
-};
-
 static struct ep93xx_eth_data __initdata simone_eth_data = {
 	.phy_id		= 1,
 };

@@ -78,7 +58,7 @@ static void __init simone_init_machine(void)
 {
 	ep93xx_init_devices();
 
-	platform_device_register(&simone_flash);
+	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&simone_eth_data, 1);
 	ep93xx_register_fb(&simone_fb_info);
 	ep93xx_register_i2c(&simone_i2c_gpio_data, simone_i2c_board_info,

arch/arm/mach-ep93xx/ts72xx.c +1 ~~-22~~

index 9553031..e0159f3 100644
@@ -15,7 +15,6 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/m48t86.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>
 #include <mach/ts72xx.h>

@@ -114,30 +113,10 @@ static void __init ts72xx_map_io(void)
 /*************************************************************************
  * NOR flash (TS-7200 only)
  *************************************************************************/
-static struct physmap_flash_data ts72xx_flash_data = {
-	.width		= 2,
-};
-
-static struct resource ts72xx_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_16M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device ts72xx_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &ts72xx_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &ts72xx_flash_resource,
-};
-
 static void __init ts72xx_register_flash(void)
 {
 	if (board_is_ts7200())
-		platform_device_register(&ts72xx_flash);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 }
 
 static unsigned char ts72xx_rtc_readbyte(unsigned long addr)

Martin Guy

2010-04-20 10:33 UTC #1 lore raw

PATCH 1/1 ep93xx: move physmap flash registration into core.c

Quoted 10 lines · H Hartley Sweeten

Create a core.c __init function to handle the physmap flash
registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.
This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.
Signed-off-by H Hartley Sweeten <[email protected]>
Cc Ryan Mallon <[email protected]>

Tested on the Sim.One platform - works fine

Acked-by Martin Guy <[email protected]>

H Hartley Sweeten

author

2010-05-22 01:02 UTC #2 lore raw

PATCH 1/1 ep93xx: move physmap flash registration into core.c

Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.

This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.

Signed-off-by H Hartley Sweeten <[email protected]>

Cc Ryan Mallon <[email protected]>

Cc Martin Guy <[email protected]>

---

V2 - Rebased to current kernel git tree

 arch/arm/mach-ep93xx/adssphere.c             |   24 +---------------
 arch/arm/mach-ep93xx/core.c                  |   38 ++++++++++++++++++++++++++
 arch/arm/mach-ep93xx/edb93xx.c               |   31 +-------------------
 arch/arm/mach-ep93xx/gesbc9312.c             |   24 +---------------
 arch/arm/mach-ep93xx/include/mach/platform.h |    3 ++
 arch/arm/mach-ep93xx/micro9.c                |   37 ++++++-------------------
 arch/arm/mach-ep93xx/simone.c                |   24 +---------------
 arch/arm/mach-ep93xx/ts72xx.c                |   27 +++---------------
 8 files changed, 59 insertions(+), 149 deletions(-)

arch/arm/mach-ep93xx/adssphere.c +1 ~~-23~~

index 3a1a855..f744f67 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data adssphere_flash_data = {
-	.width		= 4,
-};
-
-static struct resource adssphere_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_32M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device adssphere_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &adssphere_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &adssphere_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 static void __init adssphere_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&adssphere_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	ep93xx_register_eth(&adssphere_eth_data, 1);
 }

arch/arm/mach-ep93xx/core.c +38 -0

index 9092677..b87c85f 100644
@@ -29,6 +29,7 @@
 #include <linux/termios.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/serial.h>
+#include <linux/mtd/physmap.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 #include <linux/spi/spi.h>

@@ -348,6 +349,43 @@ static struct platform_device ep93xx_ohci_device = {
 
 
 /*************************************************************************
+ * EP93xx physmap'ed flash
+ *************************************************************************/
+static struct physmap_flash_data ep93xx_flash_data;
+
+static struct resource ep93xx_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device ep93xx_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &ep93xx_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &ep93xx_flash_resource,
+};
+
+/**
+ * ep93xx_register_flash() - Register the external flash device.
+ * @width:	bank width in octets
+ * @start:	resource start address
+ * @size:	resource size
+ */
+void __init ep93xx_register_flash(unsigned int width,
+				  resource_size_t start, resource_size_t size)
+{
+	ep93xx_flash_data.width		= width;
+
+	ep93xx_flash_resource.start	= start;
+	ep93xx_flash_resource.end	= start + size - 1;
+
+	platform_device_register(&ep93xx_flash);
+}
+
+
+/*************************************************************************
  * EP93xx ethernet peripheral handling
  *************************************************************************/
 static struct ep93xx_eth_data ep93xx_eth_data;

arch/arm/mach-ep93xx/edb93xx.c +2 ~~-29~~

index 3884182..c2ce903 100644
@@ -27,7 +27,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -38,39 +37,13 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data edb93xx_flash_data;
-
-static struct resource edb93xx_flash_resource = {
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device edb93xx_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &edb93xx_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &edb93xx_flash_resource,
-};
-
-static void __init __edb93xx_register_flash(unsigned int width,
-			resource_size_t start, resource_size_t size)
-{
-	edb93xx_flash_data.width	= width;
-	edb93xx_flash_resource.start	= start;
-	edb93xx_flash_resource.end	= start + size - 1;
-
-	platform_device_register(&edb93xx_flash);
-}
-
 static void __init edb93xx_register_flash(void)
 {
 	if (machine_is_edb9307() || machine_is_edb9312() ||
 	    machine_is_edb9315()) {
-		__edb93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
+		ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	} else {
-		__edb93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 	}
 }

arch/arm/mach-ep93xx/gesbc9312.c +1 ~~-23~~

index a809618..d97168c 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data gesbc9312_flash_data = {
-	.width		= 4,
-};
-
-static struct resource gesbc9312_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device gesbc9312_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &gesbc9312_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &gesbc9312_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 static void __init gesbc9312_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&gesbc9312_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&gesbc9312_eth_data, 0);
 }

arch/arm/mach-ep93xx/include/mach/platform.h +3 -0

index 9a4413d..a6c0917 100644
@@ -43,6 +43,9 @@ static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
 
 unsigned int ep93xx_chip_revision(void);
 
+void ep93xx_register_flash(unsigned int width,
+			   resource_size_t start, resource_size_t size);
+
 void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
 void ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 			 struct i2c_board_info *devices, int num);

arch/arm/mach-ep93xx/micro9.c +9 ~~-28~~

index 1cc911b..2ba7763 100644
@@ -14,7 +14,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/io.h>
 
 #include <mach/hardware.h>

@@ -31,31 +30,6 @@
  * Micro9-Lite uses a separate MTD map driver for flash support
  * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
  *************************************************************************/
-static struct physmap_flash_data micro9_flash_data;
-
-static struct resource micro9_flash_resource = {
-	.start		= EP93XX_CS1_PHYS_BASE,
-	.end		= EP93XX_CS1_PHYS_BASE + SZ_64M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device micro9_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &micro9_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &micro9_flash_resource,
-};
-
-static void __init __micro9_register_flash(unsigned int width)
-{
-	micro9_flash_data.width = width;
-
-	platform_device_register(&micro9_flash);
-}
-
 static unsigned int __init micro9_detect_bootwidth(void)
 {
 	u32 v;

@@ -70,10 +44,17 @@ static unsigned int __init micro9_detect_bootwidth(void)
 
 static void __init micro9_register_flash(void)
 {
+	unsigned int width;
+
 	if (machine_is_micro9())
-		__micro9_register_flash(4);
+		width = 4;
 	else if (machine_is_micro9m() || machine_is_micro9s())
-		__micro9_register_flash(micro9_detect_bootwidth());
+		width = micro9_detect_bootwidth();
+	else
+		width = 0;
+
+	if (width)
+		ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
 }

arch/arm/mach-ep93xx/simone.c +1 ~~-23~~

index 388aec9..5dded58 100644
@@ -18,7 +18,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -29,26 +28,6 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-static struct physmap_flash_data simone_flash_data = {
-	.width		= 2,
-};
-
-static struct resource simone_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device simone_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.num_resources	= 1,
-	.resource	= &simone_flash_resource,
-	.dev = {
-		.platform_data	= &simone_flash_data,
-	},
-};
-
 static struct ep93xx_eth_data __initdata simone_eth_data = {
 	.phy_id		= 1,
 };

@@ -77,8 +56,7 @@ static struct i2c_board_info __initdata simone_i2c_board_info[] = {
 static void __init simone_init_machine(void)
 {
 	ep93xx_init_devices();
-
-	platform_device_register(&simone_flash);
+	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&simone_eth_data, 1);
 	ep93xx_register_fb(&simone_fb_info);
 	ep93xx_register_i2c(&simone_i2c_gpio_data, simone_i2c_board_info,

arch/arm/mach-ep93xx/ts72xx.c +4 ~~-23~~

index ae7319e..93aeab8 100644
@@ -17,7 +17,6 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/m48t86.h>
-#include <linux/mtd/physmap.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>

@@ -173,31 +172,13 @@ static struct platform_device ts72xx_nand_flash = {
 };
 
 
-/*************************************************************************
- * NOR flash (TS-7200 only)
- *************************************************************************/
-static struct physmap_flash_data ts72xx_nor_data = {
-	.width		= 2,
-};
-
-static struct resource ts72xx_nor_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_16M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device ts72xx_nor_flash = {
-	.name			= "physmap-flash",
-	.id			= 0,
-	.dev.platform_data	= &ts72xx_nor_data,
-	.resource		= &ts72xx_nor_resource,
-	.num_resources		= 1,
-};
-
 static void __init ts72xx_register_flash(void)
 {
+	/*
+	 * TS7200 has NOR flash all other TS72xx board have NAND flash.
+	 */
 	if (board_is_ts7200()) {
-		platform_device_register(&ts72xx_nor_flash);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 	} else {
 		resource_size_t start;

H Hartley Sweeten

author

2010-06-09 20:49 UTC #3 lore raw

PATCH v3 1/1 ep93xx: move physmap flash registration into core.c

Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.

This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.

Signed-off-by H Hartley Sweeten <[email protected]>

Cc Ryan Mallon <[email protected]>

Acked-by Martin Guy <[email protected]>

---

v3 - Rebased to 2.6.35-rc2

 arch/arm/mach-ep93xx/adssphere.c             |   24 +---------------
 arch/arm/mach-ep93xx/core.c                  |   38 ++++++++++++++++++++++++++
 arch/arm/mach-ep93xx/edb93xx.c               |   31 +-------------------
 arch/arm/mach-ep93xx/gesbc9312.c             |   24 +---------------
 arch/arm/mach-ep93xx/include/mach/platform.h |    3 ++
 arch/arm/mach-ep93xx/micro9.c                |   37 ++++++-------------------
 arch/arm/mach-ep93xx/simone.c                |   24 +---------------
 arch/arm/mach-ep93xx/ts72xx.c                |   27 +++---------------
 8 files changed, 59 insertions(+), 149 deletions(-)

arch/arm/mach-ep93xx/adssphere.c +1 ~~-23~~

index 3a1a855..f744f67 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data adssphere_flash_data = {
-	.width		= 4,
-};
-
-static struct resource adssphere_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_32M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device adssphere_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &adssphere_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &adssphere_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 static void __init adssphere_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&adssphere_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	ep93xx_register_eth(&adssphere_eth_data, 1);
 }

arch/arm/mach-ep93xx/core.c +38 -0

index 9092677..b87c85f 100644
@@ -29,6 +29,7 @@
 #include <linux/termios.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/serial.h>
+#include <linux/mtd/physmap.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 #include <linux/spi/spi.h>

@@ -348,6 +349,43 @@ static struct platform_device ep93xx_ohci_device = {
 
 
 /*************************************************************************
+ * EP93xx physmap'ed flash
+ *************************************************************************/
+static struct physmap_flash_data ep93xx_flash_data;
+
+static struct resource ep93xx_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device ep93xx_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &ep93xx_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &ep93xx_flash_resource,
+};
+
+/**
+ * ep93xx_register_flash() - Register the external flash device.
+ * @width:	bank width in octets
+ * @start:	resource start address
+ * @size:	resource size
+ */
+void __init ep93xx_register_flash(unsigned int width,
+				  resource_size_t start, resource_size_t size)
+{
+	ep93xx_flash_data.width		= width;
+
+	ep93xx_flash_resource.start	= start;
+	ep93xx_flash_resource.end	= start + size - 1;
+
+	platform_device_register(&ep93xx_flash);
+}
+
+
+/*************************************************************************
  * EP93xx ethernet peripheral handling
  *************************************************************************/
 static struct ep93xx_eth_data ep93xx_eth_data;

arch/arm/mach-ep93xx/edb93xx.c +2 ~~-29~~

index 3884182..c2ce903 100644
@@ -27,7 +27,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -38,39 +37,13 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data edb93xx_flash_data;
-
-static struct resource edb93xx_flash_resource = {
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device edb93xx_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &edb93xx_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &edb93xx_flash_resource,
-};
-
-static void __init __edb93xx_register_flash(unsigned int width,
-			resource_size_t start, resource_size_t size)
-{
-	edb93xx_flash_data.width	= width;
-	edb93xx_flash_resource.start	= start;
-	edb93xx_flash_resource.end	= start + size - 1;
-
-	platform_device_register(&edb93xx_flash);
-}
-
 static void __init edb93xx_register_flash(void)
 {
 	if (machine_is_edb9307() || machine_is_edb9312() ||
 	    machine_is_edb9315()) {
-		__edb93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
+		ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	} else {
-		__edb93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 	}
 }

arch/arm/mach-ep93xx/gesbc9312.c +1 ~~-23~~

index a809618..d97168c 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data gesbc9312_flash_data = {
-	.width		= 4,
-};
-
-static struct resource gesbc9312_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device gesbc9312_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &gesbc9312_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &gesbc9312_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 static void __init gesbc9312_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&gesbc9312_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&gesbc9312_eth_data, 0);
 }

arch/arm/mach-ep93xx/include/mach/platform.h +3 -0

index 9a4413d..a6c0917 100644
@@ -43,6 +43,9 @@ static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
 
 unsigned int ep93xx_chip_revision(void);
 
+void ep93xx_register_flash(unsigned int width,
+			   resource_size_t start, resource_size_t size);
+
 void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
 void ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 			 struct i2c_board_info *devices, int num);

arch/arm/mach-ep93xx/micro9.c +9 ~~-28~~

index 1cc911b..2ba7763 100644
@@ -14,7 +14,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/io.h>
 
 #include <mach/hardware.h>

@@ -31,31 +30,6 @@
  * Micro9-Lite uses a separate MTD map driver for flash support
  * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
  *************************************************************************/
-static struct physmap_flash_data micro9_flash_data;
-
-static struct resource micro9_flash_resource = {
-	.start		= EP93XX_CS1_PHYS_BASE,
-	.end		= EP93XX_CS1_PHYS_BASE + SZ_64M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device micro9_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &micro9_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &micro9_flash_resource,
-};
-
-static void __init __micro9_register_flash(unsigned int width)
-{
-	micro9_flash_data.width = width;
-
-	platform_device_register(&micro9_flash);
-}
-
 static unsigned int __init micro9_detect_bootwidth(void)
 {
 	u32 v;

@@ -70,10 +44,17 @@ static unsigned int __init micro9_detect_bootwidth(void)
 
 static void __init micro9_register_flash(void)
 {
+	unsigned int width;
+
 	if (machine_is_micro9())
-		__micro9_register_flash(4);
+		width = 4;
 	else if (machine_is_micro9m() || machine_is_micro9s())
-		__micro9_register_flash(micro9_detect_bootwidth());
+		width = micro9_detect_bootwidth();
+	else
+		width = 0;
+
+	if (width)
+		ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
 }

arch/arm/mach-ep93xx/simone.c +1 ~~-23~~

index 388aec9..5dded58 100644
@@ -18,7 +18,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -29,26 +28,6 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-static struct physmap_flash_data simone_flash_data = {
-	.width		= 2,
-};
-
-static struct resource simone_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device simone_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.num_resources	= 1,
-	.resource	= &simone_flash_resource,
-	.dev = {
-		.platform_data	= &simone_flash_data,
-	},
-};
-
 static struct ep93xx_eth_data __initdata simone_eth_data = {
 	.phy_id		= 1,
 };

@@ -77,8 +56,7 @@ static struct i2c_board_info __initdata simone_i2c_board_info[] = {
 static void __init simone_init_machine(void)
 {
 	ep93xx_init_devices();
-
-	platform_device_register(&simone_flash);
+	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&simone_eth_data, 1);
 	ep93xx_register_fb(&simone_fb_info);
 	ep93xx_register_i2c(&simone_i2c_gpio_data, simone_i2c_board_info,

arch/arm/mach-ep93xx/ts72xx.c +4 ~~-23~~

index ae7319e..93aeab8 100644
@@ -17,7 +17,6 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/m48t86.h>
-#include <linux/mtd/physmap.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>

@@ -173,31 +172,13 @@ static struct platform_device ts72xx_nand_flash = {
 };
 
 
-/*************************************************************************
- * NOR flash (TS-7200 only)
- *************************************************************************/
-static struct physmap_flash_data ts72xx_nor_data = {
-	.width		= 2,
-};
-
-static struct resource ts72xx_nor_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_16M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device ts72xx_nor_flash = {
-	.name			= "physmap-flash",
-	.id			= 0,
-	.dev.platform_data	= &ts72xx_nor_data,
-	.resource		= &ts72xx_nor_resource,
-	.num_resources		= 1,
-};
-
 static void __init ts72xx_register_flash(void)
 {
+	/*
+	 * TS7200 has NOR flash all other TS72xx board have NAND flash.
+	 */
 	if (board_is_ts7200()) {
-		platform_device_register(&ts72xx_nor_flash);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 	} else {
 		resource_size_t start;

Ryan Mallon

2010-06-09 20:59 UTC #4 lore raw

PATCH v3 1/1 ep93xx: move physmap flash registration into core.c

Quoted 7 lines · H Hartley Sweeten

Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.
This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.

Looks fine. Not sure I understand the second part about the unified kernel though. Can't we already build all ep93xx boards (at least those at the same phys offset) into one kernel?

~Ryan

Quoted 403 lines

Signed-off-by H Hartley Sweeten <[email protected]>

Cc Ryan Mallon <[email protected]>

Acked-by Martin Guy <[email protected]>

---

v3 - Rebased to 2.6.35-rc2

 arch/arm/mach-ep93xx/adssphere.c             |   24 +---------------
 arch/arm/mach-ep93xx/core.c                  |   38 ++++++++++++++++++++++++++
 arch/arm/mach-ep93xx/edb93xx.c               |   31 +-------------------
 arch/arm/mach-ep93xx/gesbc9312.c             |   24 +---------------
 arch/arm/mach-ep93xx/include/mach/platform.h |    3 ++
 arch/arm/mach-ep93xx/micro9.c                |   37 ++++++-------------------
 arch/arm/mach-ep93xx/simone.c                |   24 +---------------
 arch/arm/mach-ep93xx/ts72xx.c                |   27 +++---------------
 8 files changed, 59 insertions(+), 149 deletions(-)

arch/arm/mach-ep93xx/adssphere.c +1 ~~-23~~

index 3a1a855..f744f67 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data adssphere_flash_data = {
-	.width		= 4,
-};
-
-static struct resource adssphere_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_32M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device adssphere_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &adssphere_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &adssphere_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata adssphere_eth_data = {
 static void __init adssphere_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&adssphere_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	ep93xx_register_eth(&adssphere_eth_data, 1);
 }

arch/arm/mach-ep93xx/core.c +38 -0

index 9092677..b87c85f 100644
@@ -29,6 +29,7 @@
 #include <linux/termios.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/serial.h>
+#include <linux/mtd/physmap.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 #include <linux/spi/spi.h>

@@ -348,6 +349,43 @@ static struct platform_device ep93xx_ohci_device = {
 
 
 /*************************************************************************
+ * EP93xx physmap'ed flash
+ *************************************************************************/
+static struct physmap_flash_data ep93xx_flash_data;
+
+static struct resource ep93xx_flash_resource = {
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device ep93xx_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &ep93xx_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &ep93xx_flash_resource,
+};
+
+/**
+ * ep93xx_register_flash() - Register the external flash device.
+ * @width:	bank width in octets
+ * @start:	resource start address
+ * @size:	resource size
+ */
+void __init ep93xx_register_flash(unsigned int width,
+				  resource_size_t start, resource_size_t size)
+{
+	ep93xx_flash_data.width		= width;
+
+	ep93xx_flash_resource.start	= start;
+	ep93xx_flash_resource.end	= start + size - 1;
+
+	platform_device_register(&ep93xx_flash);
+}
+
+
+/*************************************************************************
  * EP93xx ethernet peripheral handling
  *************************************************************************/
 static struct ep93xx_eth_data ep93xx_eth_data;

arch/arm/mach-ep93xx/edb93xx.c +2 ~~-29~~

index 3884182..c2ce903 100644
@@ -27,7 +27,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -38,39 +37,13 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data edb93xx_flash_data;
-
-static struct resource edb93xx_flash_resource = {
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device edb93xx_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &edb93xx_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &edb93xx_flash_resource,
-};
-
-static void __init __edb93xx_register_flash(unsigned int width,
-			resource_size_t start, resource_size_t size)
-{
-	edb93xx_flash_data.width	= width;
-	edb93xx_flash_resource.start	= start;
-	edb93xx_flash_resource.end	= start + size - 1;
-
-	platform_device_register(&edb93xx_flash);
-}
-
 static void __init edb93xx_register_flash(void)
 {
 	if (machine_is_edb9307() || machine_is_edb9312() ||
 	    machine_is_edb9315()) {
-		__edb93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
+		ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
 	} else {
-		__edb93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 	}
 }

arch/arm/mach-ep93xx/gesbc9312.c +1 ~~-23~~

index a809618..d97168c 100644
@@ -13,7 +13,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>

@@ -21,26 +20,6 @@
 #include <asm/mach/arch.h>
 
 
-static struct physmap_flash_data gesbc9312_flash_data = {
-	.width		= 4,
-};
-
-static struct resource gesbc9312_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device gesbc9312_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &gesbc9312_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &gesbc9312_flash_resource,
-};
-
 static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 	.phy_id		= 1,
 };

@@ -48,8 +27,7 @@ static struct ep93xx_eth_data __initdata gesbc9312_eth_data = {
 static void __init gesbc9312_init_machine(void)
 {
 	ep93xx_init_devices();
-	platform_device_register(&gesbc9312_flash);
-
+	ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&gesbc9312_eth_data, 0);
 }

arch/arm/mach-ep93xx/include/mach/platform.h +3 -0

index 9a4413d..a6c0917 100644
@@ -43,6 +43,9 @@ static inline void ep93xx_devcfg_clear_bits(unsigned int bits)
 
 unsigned int ep93xx_chip_revision(void);
 
+void ep93xx_register_flash(unsigned int width,
+			   resource_size_t start, resource_size_t size);
+
 void ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr);
 void ep93xx_register_i2c(struct i2c_gpio_platform_data *data,
 			 struct i2c_board_info *devices, int num);

arch/arm/mach-ep93xx/micro9.c +9 ~~-28~~

index 1cc911b..2ba7763 100644
@@ -14,7 +14,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/io.h>
 
 #include <mach/hardware.h>

@@ -31,31 +30,6 @@
  * Micro9-Lite uses a separate MTD map driver for flash support
  * Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
  *************************************************************************/
-static struct physmap_flash_data micro9_flash_data;
-
-static struct resource micro9_flash_resource = {
-	.start		= EP93XX_CS1_PHYS_BASE,
-	.end		= EP93XX_CS1_PHYS_BASE + SZ_64M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device micro9_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &micro9_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &micro9_flash_resource,
-};
-
-static void __init __micro9_register_flash(unsigned int width)
-{
-	micro9_flash_data.width = width;
-
-	platform_device_register(&micro9_flash);
-}
-
 static unsigned int __init micro9_detect_bootwidth(void)
 {
 	u32 v;

@@ -70,10 +44,17 @@ static unsigned int __init micro9_detect_bootwidth(void)
 
 static void __init micro9_register_flash(void)
 {
+	unsigned int width;
+
 	if (machine_is_micro9())
-		__micro9_register_flash(4);
+		width = 4;
 	else if (machine_is_micro9m() || machine_is_micro9s())
-		__micro9_register_flash(micro9_detect_bootwidth());
+		width = micro9_detect_bootwidth();
+	else
+		width = 0;
+
+	if (width)
+		ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
 }

arch/arm/mach-ep93xx/simone.c +1 ~~-23~~

index 388aec9..5dded58 100644
@@ -18,7 +18,6 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
-#include <linux/mtd/physmap.h>
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>

@@ -29,26 +28,6 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-static struct physmap_flash_data simone_flash_data = {
-	.width		= 2,
-};
-
-static struct resource simone_flash_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_8M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device simone_flash = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.num_resources	= 1,
-	.resource	= &simone_flash_resource,
-	.dev = {
-		.platform_data	= &simone_flash_data,
-	},
-};
-
 static struct ep93xx_eth_data __initdata simone_eth_data = {
 	.phy_id		= 1,
 };

@@ -77,8 +56,7 @@ static struct i2c_board_info __initdata simone_i2c_board_info[] = {
 static void __init simone_init_machine(void)
 {
 	ep93xx_init_devices();
-
-	platform_device_register(&simone_flash);
+	ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
 	ep93xx_register_eth(&simone_eth_data, 1);
 	ep93xx_register_fb(&simone_fb_info);
 	ep93xx_register_i2c(&simone_i2c_gpio_data, simone_i2c_board_info,

arch/arm/mach-ep93xx/ts72xx.c +4 ~~-23~~

index ae7319e..93aeab8 100644
@@ -17,7 +17,6 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/m48t86.h>
-#include <linux/mtd/physmap.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>

@@ -173,31 +172,13 @@ static struct platform_device ts72xx_nand_flash = {
 };
 
 
-/*************************************************************************
- * NOR flash (TS-7200 only)
- *************************************************************************/
-static struct physmap_flash_data ts72xx_nor_data = {
-	.width		= 2,
-};
-
-static struct resource ts72xx_nor_resource = {
-	.start		= EP93XX_CS6_PHYS_BASE,
-	.end		= EP93XX_CS6_PHYS_BASE + SZ_16M - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device ts72xx_nor_flash = {
-	.name			= "physmap-flash",
-	.id			= 0,
-	.dev.platform_data	= &ts72xx_nor_data,
-	.resource		= &ts72xx_nor_resource,
-	.num_resources		= 1,
-};
-
 static void __init ts72xx_register_flash(void)
 {
+	/*
+	 * TS7200 has NOR flash all other TS72xx board have NAND flash.
+	 */
 	if (board_is_ts7200()) {
-		platform_device_register(&ts72xx_nor_flash);
+		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
 	} else {
 		resource_size_t start;

Signature · 7 lines

Bluewater Systems Ltd - ARM Technology Solution Centre

Ryan Mallon         		5 Amuri Park, 404 Barbadoes St
ryan at bluewatersys.com         	PO Box 13 889, Christchurch 8013
http://www.bluewatersys.com	New Zealand
Phone: +64 3 3779127		Freecall: Australia 1800 148 751
Fax:   +64 3 3779135			  USA 1800 261 2934

H Hartley Sweeten

author

2010-06-09 21:10 UTC #5 lore raw

PATCH v3 1/1 ep93xx: move physmap flash registration into core.c

Quoted 5 lines · Ryan Mallon

Quoted 4 lines · H Hartley Sweeten
Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.

Quoted 7 lines

Quoted 3 lines
This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.
Looks fine. Not sure I understand the second part about the unified kernel though. Can't we already build all ep93xx boards (at least those at the same phys offset) into one kernel?

Yes, we already build a unified kernel for boards with the same phys offset. But with the current code each platform has a private static Resource and platform device for the flash. Since this data is not tagged as __initdata it just takes up space after initialization. If a working runtime PHYS_OFFSET patch is ever worked out this static data will increase for each ep93xx platform added.

Maybe "unified" is not the right term...

Regards,
Hartley

Ryan Mallon

2010-06-09 21:34 UTC #6 lore raw

PATCH v3 1/1 ep93xx: move physmap flash registration into core.c

Quoted 13 lines · H Hartley Sweeten

Quoted 11 lines · Ryan Mallon
Quoted 7 lines · H Hartley Sweeten
Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.
This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.
Looks fine. Not sure I understand the second part about the unified kernel though. Can't we already build all ep93xx boards (at least those at the same phys offset) into one kernel?

Quoted 6 lines

Yes, we already build a unified kernel for boards with the same phys offset. But with the current code each platform has a private static Resource and platform device for the flash. Since this data is not tagged as __initdata it just takes up space after initialization. If a working runtime PHYS_OFFSET patch is ever worked out this static data will increase for each ep93xx platform added.

Ah, that makes sense. Just say that it reduces the size of the kernel when including multiple ep93xx boards.

~Ryan

Signature · 7 lines

Bluewater Systems Ltd - ARM Technology Solution Centre

Ryan Mallon         		5 Amuri Park, 404 Barbadoes St
ryan at bluewatersys.com         	PO Box 13 889, Christchurch 8013
http://www.bluewatersys.com	New Zealand
Phone: +64 3 3779127		Freecall: Australia 1800 148 751
Fax:   +64 3 3779135			  USA 1800 261 2934

H Hartley Sweeten

author

2010-06-09 21:39 UTC #7 lore raw

PATCH v3 1/1 ep93xx: move physmap flash registration into core.c

Quoted 21 lines · Ryan Mallon

Quoted 13 lines · H Hartley Sweeten
Quoted 11 lines · Ryan Mallon
Quoted 7 lines · H Hartley Sweeten
Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function.
This simplifies all the ep93xx platform init code and removes all the static variables that would exist in a unified kernel supporting multiple ep93xx platforms.
Looks fine. Not sure I understand the second part about the unified kernel though. Can't we already build all ep93xx boards (at least those at the same phys offset) into one kernel?
Quoted 6 lines
Yes, we already build a unified kernel for boards with the same phys offset. But with the current code each platform has a private static Resource and platform device for the flash. Since this data is not tagged as __initdata it just takes up space after initialization. If a working runtime PHYS_OFFSET patch is ever worked out this static data will increase for each ep93xx platform added.

Quoted 2 lines

Ah, that makes sense. Just say that it reduces the size of the kernel when including multiple ep93xx boards.

I'll change the commit message when I put the patch into Russell's patch system. I'll wait a couple days incase anyone else has a comment.

Regards,
Hartley