[PATCH 0/8 v3] pm9g45/pm9253/pm9261: add 1-wire support

[PATCH 0/8 v3] pm9g45/pm9253/pm9261: add 1-wire support

[Jean-Christophe PLAGNIOL-VILLARD]

Hi,

	v3: comment

	v2: fixup and add comment

	add 1-wire support for:
	 - pm9g45
	 - pm9263
	 - pm9261

	use the 1-wire uniq id to generate a local mac address
	The OUI will be 'ron' => 72:6F:6E

	The patch series go on the top of the 1-wire support v2

The following changes since commit acaa716bce8cd1373cb5dabff54332fb1da7355b:

  1-wire: add ds2433 support (2012-10-29 04:46:21 +0800)

are available in the git repository at:

  git://git.jcrosoft.org/barebox.git delivery/ronetix_w1

for you to fetch changes up to 7fb0cb2ce2f7800341ab8de711dccbd2c4753c84:

  pm9261: use w1 serial number to generate local mac address (2012-10-30 13:44:54 +0800)

----------------------------------------------------------------
Jean-Christophe PLAGNIOL-VILLARD (8):
      arm: at91: add gpio_is_valid support
      w1: introduce helper to generate mac address from 1-wire id
      pm9g45: add 1-wire support
      pm9g45: use w1 serial number to generate local mac address
      pm9263: add 1-wire support
      pm9263: use w1 serial number to generate local mac address
      pm9261: add 1-wire support
      pm9261: use w1 serial number to generate local mac address

 arch/arm/boards/pm9261/init.c          |   10 ++++++++++
 arch/arm/boards/pm9263/init.c          |   38 ++++++++++++++++++++++++++++++--------
 arch/arm/boards/pm9g45/init.c          |   22 +++++++++++++++++++---
 arch/arm/configs/pm9261_defconfig      |    2 ++
 arch/arm/configs/pm9263_defconfig      |    2 ++
 arch/arm/configs/pm9g45_defconfig      |    2 ++
 arch/arm/mach-at91/include/mach/gpio.h |   11 +++++++++++
 include/w1_mac_address.h               |   65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 8 files changed, 141 insertions(+), 11 deletions(-)
 create mode 100644 include/w1_mac_address.h

Best Regards,
J.

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[PATCH 1/8] arm: at91: add gpio_is_valid support

[Jean-Christophe PLAGNIOL-VILLARD]

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/mach-at91/include/mach/gpio.h |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/mach-at91/include/mach/gpio.h b/arch/arm/mach-at91/include/mach/gpio.h
index 3533bf9..fa695a6 100644
--- a/arch/arm/mach-at91/include/mach/gpio.h
+++ b/arch/arm/mach-at91/include/mach/gpio.h
@@ -22,6 +22,17 @@
 
 /* these pin numbers double as IRQ numbers, like AT91xxx_ID_* values */
 
+#define ARCH_NR_GPIOS 256
+
+static inline int gpio_is_valid(int gpio)
+{
+	if (gpio < 1)
+		return 0;
+	if (gpio < ARCH_NR_GPIOS)
+		return 1;
+	return 0;
+}
+
 #define	AT91_PIN_PA0	(PIN_BASE + 0x00 + 0)
 #define	AT91_PIN_PA1	(PIN_BASE + 0x00 + 1)
 #define	AT91_PIN_PA2	(PIN_BASE + 0x00 + 2)
-- 
1.7.10.4


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[PATCH 2/8] w1: introduce helper to generate mac address from 1-wire id

[Jean-Christophe PLAGNIOL-VILLARD]

use the first 3 byte of the id of a 1-wire
or 6 if no OUI provided device to provide an Ethernet address

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 include/w1_mac_address.h |   65 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 include/w1_mac_address.h

diff --git a/include/w1_mac_address.h b/include/w1_mac_address.h
new file mode 100644
index 0000000..89dd914
--- /dev/null
+++ b/include/w1_mac_address.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
+ *
+ * Under GPLv2 only
+ */
+
+#ifndef __W1_MAC_ADDRESS_H__
+#define __W1_MAC_ADDRESS_H__
+
+/**
+ * w1_local_mac_address_register - use the first 3 byte of the id of a 1-wire
+ * or 6 if no OUI provided device to provide an Ethernet address
+ * @ethid: ethernet device id
+ * @oui: Ethernet OUI (3 bytes)
+ * @w1_dev: 1-wire device name
+ *
+ * Generate a local Ethernet address (MAC) that is not multicast using a 1-wire id.
+ */
+static inline int w1_local_mac_address_register(int ethid, char * oui, char *w1_dev)
+{
+	char addr[6];
+	const char *val;
+	u64 id;
+	int nb_oui = 0;
+	int i, shift;
+	char *tmp = NULL;
+	int ret = 0;
+
+	if (oui) {
+		nb_oui = 3;
+
+		for (i = 0; i < nb_oui; i++)
+			addr[i] = oui[i];
+	}
+
+	tmp = asprintf("%s.id", w1_dev);
+	if (!tmp)
+		return -ENOMEM;
+
+	val = getenv(tmp);
+	if (!val) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	id = simple_strtoull(val, NULL, 16);
+	if (!id) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	for (i = nb_oui, shift = 40; i < 6; i++, shift -= 8)
+		addr[i] = (id >> shift) & 0xff;
+
+	addr[0] &= 0xfe;	/* clear multicast bit */
+	addr[0] |= 0x02;	/* set local assignment bit (IEEE802) */
+
+	eth_register_ethaddr(ethid, addr);
+
+err:
+	free(tmp);
+	return ret;
+}
+
+#endif /* __W1_MAC_ADDRESS_H__ */
-- 
1.7.10.4


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[PATCH 3/8] pm9g45: add 1-wire support

[Jean-Christophe PLAGNIOL-VILLARD]

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9g45/init.c     |   11 ++++++++++-
 arch/arm/configs/pm9g45_defconfig |    2 ++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boards/pm9g45/init.c b/arch/arm/boards/pm9g45/init.c
index a12896b..907c6bb 100644
--- a/arch/arm/boards/pm9g45/init.c
+++ b/arch/arm/boards/pm9g45/init.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
+ * Copyright (C) 2009-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
  *
  * Copyright (C) 2007 Sascha Hauer, Pengutronix
  *
@@ -35,6 +35,12 @@
 #include <mach/io.h>
 #include <mach/at91sam9_smc.h>
 #include <mach/sam9_smc.h>
+#include <linux/w1-gpio.h>
+
+struct w1_gpio_platform_data w1_pdata = {
+	.pin = AT91_PIN_PA31,
+	.is_open_drain = 0,
+};
 
 static struct atmel_nand_data nand_pdata = {
 	.ale		= 21,
@@ -132,6 +138,9 @@ mem_initcall(pm9g45_mem_init);
 
 static int pm9g45_devices_init(void)
 {
+	at91_set_gpio_input(w1_pdata.pin, 0);
+	add_generic_device_res("w1-gpio", DEVICE_ID_SINGLE, NULL, 0, &w1_pdata);
+
 	pm_add_device_nand();
 	pm9g45_add_device_mci();
 	pm9g45_phy_init();
diff --git a/arch/arm/configs/pm9g45_defconfig b/arch/arm/configs/pm9g45_defconfig
index 958301d..d242bdc 100644
--- a/arch/arm/configs/pm9g45_defconfig
+++ b/arch/arm/configs/pm9g45_defconfig
@@ -56,6 +56,8 @@ CONFIG_USB_OHCI_AT91=y
 CONFIG_USB_STORAGE=y
 CONFIG_MCI=y
 CONFIG_MCI_ATMEL=y
+CONFIG_W1=y
+CONFIG_W1_MASTER_GPIO=y
 CONFIG_FS_TFTP=y
 CONFIG_FS_FAT=y
 CONFIG_FS_FAT_WRITE=y
-- 
1.7.10.4


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[PATCH 4/8] pm9g45: use w1 serial number to generate local mac address

[Jean-Christophe PLAGNIOL-VILLARD]

The OUI will be 'ron' => 72:6F:6E

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9g45/init.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boards/pm9g45/init.c b/arch/arm/boards/pm9g45/init.c
index 907c6bb..675ebe8 100644
--- a/arch/arm/boards/pm9g45/init.c
+++ b/arch/arm/boards/pm9g45/init.c
@@ -36,6 +36,7 @@
 #include <mach/at91sam9_smc.h>
 #include <mach/sam9_smc.h>
 #include <linux/w1-gpio.h>
+#include <w1_mac_address.h>
 
 struct w1_gpio_platform_data w1_pdata = {
 	.pin = AT91_PIN_PA31,
@@ -128,6 +129,13 @@ static void pm9g45_phy_init(void)
 	at91_set_gpio_value(AT91_PIN_PD2, 1);
 }
 
+static void pm9g45_add_device_eth(void)
+{
+	w1_local_mac_address_register(0, "ron", "w1-1-0");
+	pm9g45_phy_init();
+	at91_add_device_eth(0, &macb_pdata);
+}
+
 static int pm9g45_mem_init(void)
 {
 	at91_add_device_sdram(128 * 1024 * 1024);
@@ -143,8 +151,7 @@ static int pm9g45_devices_init(void)
 
 	pm_add_device_nand();
 	pm9g45_add_device_mci();
-	pm9g45_phy_init();
-	at91_add_device_eth(0, &macb_pdata);
+	pm9g45_add_device_eth();
 	pm9g45_add_device_usbh();
 
 	devfs_add_partition("nand0", 0x00000, SZ_128K, DEVFS_PARTITION_FIXED, "at91bootstrap_raw");
-- 
1.7.10.4


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[PATCH 5/8] pm9263: add 1-wire support

[Jean-Christophe PLAGNIOL-VILLARD]

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9263/init.c     |   11 +++++++++++
 arch/arm/configs/pm9263_defconfig |    2 ++
 2 files changed, 13 insertions(+)

diff --git a/arch/arm/boards/pm9263/init.c b/arch/arm/boards/pm9263/init.c
index b17a90a..1d13e03 100644
--- a/arch/arm/boards/pm9263/init.c
+++ b/arch/arm/boards/pm9263/init.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (C) 2009-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
+ *
  * Copyright (C) 2007 Sascha Hauer, Pengutronix
  *
  * This program is free software; you can redistribute it and/or
@@ -34,6 +36,12 @@
 #include <mach/io.h>
 #include <mach/at91sam9_smc.h>
 #include <mach/sam9_smc.h>
+#include <linux/w1-gpio.h>
+
+struct w1_gpio_platform_data w1_pdata = {
+	.pin = AT91_PIN_PB31,
+	.is_open_drain = 0,
+};
 
 static struct atmel_nand_data nand_pdata = {
 	.ale		= 21,
@@ -95,6 +103,9 @@ mem_initcall(pm9263_mem_init);
 
 static int pm9263_devices_init(void)
 {
+	at91_set_gpio_input(w1_pdata.pin, 0);
+	add_generic_device_res("w1-gpio", DEVICE_ID_SINGLE, NULL, 0, &w1_pdata);
+
 	/*
 	 * PB27 enables the 50MHz oscillator for Ethernet PHY
 	 * 1 - enable
diff --git a/arch/arm/configs/pm9263_defconfig b/arch/arm/configs/pm9263_defconfig
index 8c92894..e223e77 100644
--- a/arch/arm/configs/pm9263_defconfig
+++ b/arch/arm/configs/pm9263_defconfig
@@ -35,3 +35,5 @@ CONFIG_DRIVER_NET_MACB=y
 # CONFIG_SPI is not set
 CONFIG_DRIVER_CFI=y
 CONFIG_CFI_BUFFER_WRITE=y
+CONFIG_W1=y
+CONFIG_W1_MASTER_GPIO=y
-- 
1.7.10.4


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[PATCH 6/8] pm9263: use w1 serial number to generate local mac address

[Jean-Christophe PLAGNIOL-VILLARD]

The OUI will be 'ron' => 72:6F:6E

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9263/init.c |   29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boards/pm9263/init.c b/arch/arm/boards/pm9263/init.c
index 1d13e03..14e821f 100644
--- a/arch/arm/boards/pm9263/init.c
+++ b/arch/arm/boards/pm9263/init.c
@@ -37,6 +37,7 @@
 #include <mach/at91sam9_smc.h>
 #include <mach/sam9_smc.h>
 #include <linux/w1-gpio.h>
+#include <w1_mac_address.h>
 
 struct w1_gpio_platform_data w1_pdata = {
 	.pin = AT91_PIN_PB31,
@@ -93,6 +94,24 @@ static struct at91_ether_platform_data macb_pdata = {
 	.phy_addr = 0,
 };
 
+static void pm9263_phy_init(void)
+{
+	/*
+	 * PB27 enables the 50MHz oscillator for Ethernet PHY
+	 * 1 - enable
+	 * 0 - disable
+	 */
+	at91_set_gpio_output(AT91_PIN_PB27, 1);
+	at91_set_gpio_value(AT91_PIN_PB27, 1); /* 1- enable, 0 - disable */
+}
+
+static void pm9263_add_device_eth(void)
+{
+	w1_local_mac_address_register(0, "ron", "w1-1-0");
+	pm9263_phy_init();
+	at91_add_device_eth(0, &macb_pdata);
+}
+
 static int pm9263_mem_init(void)
 {
 	at91_add_device_sdram(64 * 1024 * 1024);
@@ -106,16 +125,8 @@ static int pm9263_devices_init(void)
 	at91_set_gpio_input(w1_pdata.pin, 0);
 	add_generic_device_res("w1-gpio", DEVICE_ID_SINGLE, NULL, 0, &w1_pdata);
 
-	/*
-	 * PB27 enables the 50MHz oscillator for Ethernet PHY
-	 * 1 - enable
-	 * 0 - disable
-	 */
-	at91_set_gpio_output(AT91_PIN_PB27, 1);
-	at91_set_gpio_value(AT91_PIN_PB27, 1); /* 1- enable, 0 - disable */
-
 	pm_add_device_nand();
-	at91_add_device_eth(0, &macb_pdata);
+	pm9263_add_device_eth();
 	add_cfi_flash_device(0, AT91_CHIPSELECT_0, 4 * 1024 * 1024, 0);
 
 	devfs_add_partition("nor0", 0x00000, 0x40000, DEVFS_PARTITION_FIXED, "self0");
-- 
1.7.10.4


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[PATCH 7/8] pm9261: add 1-wire support

[Jean-Christophe PLAGNIOL-VILLARD]

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9261/init.c     |    8 ++++++++
 arch/arm/configs/pm9261_defconfig |    2 ++
 2 files changed, 10 insertions(+)

diff --git a/arch/arm/boards/pm9261/init.c b/arch/arm/boards/pm9261/init.c
index 5214394..2c3615f 100644
--- a/arch/arm/boards/pm9261/init.c
+++ b/arch/arm/boards/pm9261/init.c
@@ -1,4 +1,6 @@
 /*
+ * Copyright (C) 2009-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
+ *
  * Copyright (C) 2007 Sascha Hauer, Pengutronix
  *
  * This program is free software; you can redistribute it and/or
@@ -34,6 +36,12 @@
 #include <mach/at91sam9_smc.h>
 #include <mach/sam9_smc.h>
 #include <dm9000.h>
+#include <linux/w1-gpio.h>
+
+struct w1_gpio_platform_data w1_pdata = {
+	.pin = AT91_PIN_PA7,
+	.is_open_drain = 0,
+};
 
 static struct atmel_nand_data nand_pdata = {
 	.ale		= 22,
diff --git a/arch/arm/configs/pm9261_defconfig b/arch/arm/configs/pm9261_defconfig
index 1db16d5..0aea2c9 100644
--- a/arch/arm/configs/pm9261_defconfig
+++ b/arch/arm/configs/pm9261_defconfig
@@ -50,3 +50,5 @@ CONFIG_MTD=y
 CONFIG_NAND=y
 CONFIG_NAND_ATMEL=y
 CONFIG_UBI=y
+CONFIG_W1=y
+CONFIG_W1_MASTER_GPIO=y
-- 
1.7.10.4


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[PATCH 8/8] pm9261: use w1 serial number to generate local mac address

[Jean-Christophe PLAGNIOL-VILLARD]

The OUI will be 'ron' => 72:6F:6E

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9261/init.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boards/pm9261/init.c b/arch/arm/boards/pm9261/init.c
index 2c3615f..6d2ac98 100644
--- a/arch/arm/boards/pm9261/init.c
+++ b/arch/arm/boards/pm9261/init.c
@@ -37,6 +37,7 @@
 #include <mach/sam9_smc.h>
 #include <dm9000.h>
 #include <linux/w1-gpio.h>
+#include <w1_mac_address.h>
 
 struct w1_gpio_platform_data w1_pdata = {
 	.pin = AT91_PIN_PA7,
@@ -120,6 +121,7 @@ static struct sam9_smc_config __initdata dm9000_smc_config = {
 
 static void __init pm_add_device_dm9000(void)
 {
+	w1_local_mac_address_register(0, "ron", "w1-1-0");
 	/* Configure chip-select 2 (DM9000) */
 	sam9_smc_configure(2, &dm9000_smc_config);
 
-- 
1.7.10.4


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Re: [PATCH 0/8 v3] pm9g45/pm9253/pm9261: add 1-wire support

[Sascha Hauer]

On Tue, Oct 30, 2012 at 09:54:59PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> Hi,
> 
> 	v3: comment
> 
> 	v2: fixup and add comment
> 
> 	add 1-wire support for:
> 	 - pm9g45
> 	 - pm9263
> 	 - pm9261
> 
> 	use the 1-wire uniq id to generate a local mac address
> 	The OUI will be 'ron' => 72:6F:6E
> 
> 	The patch series go on the top of the 1-wire support v2
> 
> The following changes since commit acaa716bce8cd1373cb5dabff54332fb1da7355b:
> 
>   1-wire: add ds2433 support (2012-10-29 04:46:21 +0800)
> 
> are available in the git repository at:
> 
>   git://git.jcrosoft.org/barebox.git delivery/ronetix_w1
> 
> for you to fetch changes up to 7fb0cb2ce2f7800341ab8de711dccbd2c4753c84:
> 
>   pm9261: use w1 serial number to generate local mac address (2012-10-30 13:44:54 +0800)

Applied, thanks.

Sascha


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[PATCH 8/8] pm9261: use w1 serial number to generate local mac address

[Jean-Christophe PLAGNIOL-VILLARD]

The OUI will be 'ron' => 72:6F:6E

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9261/init.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boards/pm9261/init.c b/arch/arm/boards/pm9261/init.c
index 2c3615f..72fdb0e 100644
--- a/arch/arm/boards/pm9261/init.c
+++ b/arch/arm/boards/pm9261/init.c
@@ -37,6 +37,7 @@
 #include <mach/sam9_smc.h>
 #include <dm9000.h>
 #include <linux/w1-gpio.h>
+#include <w1_mac_address.h>
 
 struct w1_gpio_platform_data w1_pdata = {
 	.pin = AT91_PIN_PA7,
@@ -120,6 +121,7 @@ static struct sam9_smc_config __initdata dm9000_smc_config = {
 
 static void __init pm_add_device_dm9000(void)
 {
+	w1_mac_address_register(0, true, "ron", "w1-1-0");
 	/* Configure chip-select 2 (DM9000) */
 	sam9_smc_configure(2, &dm9000_smc_config);
 
-- 
1.7.10.4


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[PATCH 8/8] pm9261: use w1 serial number to generate local mac address

[Jean-Christophe PLAGNIOL-VILLARD]

The OUI will be 'ron' => 72:6F:6E

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/boards/pm9261/init.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boards/pm9261/init.c b/arch/arm/boards/pm9261/init.c
index 2c3615f..72fdb0e 100644
--- a/arch/arm/boards/pm9261/init.c
+++ b/arch/arm/boards/pm9261/init.c
@@ -37,6 +37,7 @@
 #include <mach/sam9_smc.h>
 #include <dm9000.h>
 #include <linux/w1-gpio.h>
+#include <w1_mac_address.h>
 
 struct w1_gpio_platform_data w1_pdata = {
 	.pin = AT91_PIN_PA7,
@@ -120,6 +121,7 @@ static struct sam9_smc_config __initdata dm9000_smc_config = {
 
 static void __init pm_add_device_dm9000(void)
 {
+	w1_mac_address_register(0, true, "ron", "w1-1-0");
 	/* Configure chip-select 2 (DM9000) */
 	sam9_smc_configure(2, &dm9000_smc_config);
 
-- 
1.7.10.4


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