* [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage
@ 2014-11-21 1:26 Suriyan Ramasami
2014-11-21 1:26 ` [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call Suriyan Ramasami
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Suriyan Ramasami @ 2014-11-21 1:26 UTC (permalink / raw)
To: u-boot
Add information wrt using the USB host interface for loading kernel over
ethernet and/or usb mass storage.
Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
---
Changes in v2:
- Make updates to be of use from a user's perspective
Series-changes: 1
- Add USB host notes for the Odroid
doc/README.odroid | 169 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 169 insertions(+)
diff --git a/doc/README.odroid b/doc/README.odroid
index 528bb95..25b962b 100644
--- a/doc/README.odroid
+++ b/doc/README.odroid
@@ -141,3 +141,172 @@ And the boot sequence is:
- boot_fit - if "Image.itb" exists
- boot_zimg - if "zImage" exists
- boot_uimg - if "uImage" exists
+
+11. USB host support
+====================
+
+The ethernet can be accessed after starting the USB subsystem in U-Boot.
+The adapter does not come with a preconfigured MAC address, and hence it needs
+to be set before starting USB.
+setenv usbethaddr 02:DE:AD:BE:EF:FF
+
+Note that in this example a locally managed MAC address is chosen. Care should
+be taken to make these MAC addresses unique within the same subnet.
+
+Start the USB subsystem:
+Odroid # setenv usbethaddr 02:DE:AD:BE:EF:FF
+Odroid # usb start
+(Re)start USB...
+USB0: USB EHCI 1.00
+scanning bus 0 for devices... 4 USB Device(s) found
+ scanning usb for storage devices... 1 Storage Device(s) found
+ scanning usb for ethernet devices... 1 Ethernet Device(s) found
+Odroid #
+
+Automatic IP assignment:
+------------------------
+If the ethernet is connected to a DHCP server (router maybe with DHCP enabled),
+then the below will automatically assign an ip address through DHCP.
+setenv autoload no
+dhcp
+
+Odroid # setenv autoload no
+Odroid # dhcp
+Waiting for Ethernet connection... done.
+BOOTP broadcast 1
+DHCP client bound to address 192.168.1.10 (524 ms)
+Odroid #
+
+Note that this automatically sets the many IP address related variables in
+U-Boot that is obtained from the DHCP server.
+
+Odroid # printenv ipaddr netmask gatewayip dnsip
+ipaddr=192.168.1.10
+netmask=255.255.255.0
+gatewayip=192.168.1.1
+dnsip=192.168.1.1
+
+Ping example:
+The ping command can be used a test to check connectivity. In this example,
+192.168.1.27 is a pingable server in the network.
+Odroid # ping 192.168.1.27
+Waiting for Ethernet connection... done.
+Using sms0 device
+host 192.168.1.27 is alive
+Odroid #
+
+Static IP assignment:
+---------------------
+In the case where there are no DHCP servers in the network, or you want to
+set the IP address statically, it can be done by:
+Odroid # setenv ipaddr 192.168.1.10
+Odroid # ping 192.168.1.27
+Waiting for Ethernet connection... done.
+Using sms0 device
+host 192.168.1.27 is alive
+
+TFTP booting:
+-------------
+Say there exists a tftp server in the network with address 192.168.1.27 and
+it serves a kernel image (zImage.3.17) and a DTB blob (exynos4412-odroidu3.dtb)
+that needs to be loaded and booted. It can be accomplished as below:
+(Assumes that you have setenv usbethaddr, and have not set autoload to no)
+
+Odroid # setenv serverip 192.168.1.27
+Odroid # tftpboot 0x40080000 zImage.3.17
+Waiting for Ethernet connection... done.
+Using sms0 device
+TFTP from server 192.168.1.27; our IP address is 192.168.1.10
+Filename 'zImage.3.17'.
+Load address: 0x40080000
+Loading: #################################################################
+ #################################################################
+ #################################################################
+ #######################
+ 52.7 KiB/s
+done
+Bytes transferred = 3194200 (30bd58 hex)
+Odroid # tftpboot 0x42000000 exynos4412-odroidu3.dtb
+Waiting for Ethernet connection... done.
+Using sms0 device
+TFTP from server 192.168.1.27; our IP address is 192.168.1.10
+Filename 'exynos4412-odroidu3.dtb'.
+Load address: 0x42000000
+Loading: ####
+ 40 KiB/s
+done
+Bytes transferred = 46935 (b757 hex)
+Odroid # printenv bootargs
+bootargs=Please use defined boot
+Odroid # setenv bootargs console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait
+Odroid # bootz 40080000 - 42000000
+Kernel image @ 0x40080000 [ 0x000000 - 0x30bd58 ]
+## Flattened Device Tree blob at 42000000
+ Booting using the fdt blob at 0x42000000
+ Loading Device Tree to 4fff1000, end 4ffff756 ... OK
+
+Starting kernel ...
+
+[ 0.000000] Booting Linux on physical CPU 0xa00
+... etc ...
+
+In the above example you can substitute 'dhcp' for 'tftpboot' as well.
+
+USB Storage booting:
+--------------------
+Similarly we can use the USB storage to load the kernel image/initrd/fdt etc
+and boot. For this example, there is a USB drive plugged in. It has a FAT
+1st partition and an EXT 2nd partition. Using the generic FS (ls/load) makes
+it even easier to work with FAT/EXT file systems.
+For this example the second EXT partition is used for booting and as rootfs.
+The boot files - kernel and the dtb are present in the /boot directory of the
+second partition.
+
+Odroid # usb start
+(Re)start USB...
+USB0: USB EHCI 1.00
+scanning bus 0 for devices... 4 USB Device(s) found
+ scanning usb for storage devices... 1 Storage Device(s) found
+ scanning usb for ethernet devices...
+Error: sms0 address not set. <----- Note the error as usbethaddr
+Warning: failed to set MAC address <----- is not set.
+1 Ethernet Device(s) found
+Odroid # usb part 0
+
+Partition Map for USB device 0 -- Partition Type: DOS
+
+Part Start Sector Num Sectors UUID Type
+ 1 3072 263168 000c4046-01 06
+ 2 266240 13457408 000c4046-02 83
+
+Odroid # ls usb 0:2 /boot
+<DIR> 4096 .
+<DIR> 4096 ..
+ 353 boot.scr
+ 281 boot.txt
+ 101420 config-3.8.13.23
+ 2127254 initrd.img-3.8.13.23
+ 2194825 uInitrd
+ 2194825 uInitrd-3.8.13.23
+ 2453112 zImage
+ 101448 config-3.8.13.26
+ 2127670 uInitrd-3.8.13.26
+ 2127606 initrd.img-3.8.13.26
+ 3194200 zImage.3.17 <--- Kernel
+ 46935 exynos4412-odroidu3.dtb <--- DTB
+Odroid # load usb 0:2 40080000 /boot/zImage.3.17
+3194200 bytes read in 471 ms (6.5 MiB/s)
+Odroid # load usb 0:2 42000000 /boot/exynos4412-odroidu3.dtb
+46935 bytes read in 233 ms (196.3 KiB/s)
+Odroid # setenv bootargs console=ttySAC1,115200n8 root=/dev/sda2 rootwait
+Odroid # bootz 40080000 - 42000000
+Kernel image @ 0x40080000 [ 0x000000 - 0x30bd58 ]
+## Flattened Device Tree blob at 42000000
+ Booting using the fdt blob@0x42000000
+ Loading Device Tree to 4fff1000, end 4ffff756 ... OK
+
+Starting kernel ...
+
+[ 0.000000] Booting Linux on physical CPU 0xa00
+
+Please refer to README.usb for additional information.
--
1.8.3.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call
2014-11-21 1:26 [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage Suriyan Ramasami
@ 2014-11-21 1:26 ` Suriyan Ramasami
2014-11-21 16:05 ` Sjoerd Simons
2014-11-24 2:20 ` Minkyu Kang
2014-11-21 7:58 ` [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage Przemyslaw Marczak
2014-11-24 2:19 ` Minkyu Kang
2 siblings, 2 replies; 6+ messages in thread
From: Suriyan Ramasami @ 2014-11-21 1:26 UTC (permalink / raw)
To: u-boot
The USB host code was missing gpio_request() calls before using the gpio
functions, causing errors to be printed out.
As a side note calls to max77686_set_buck_mode(OPMODE_OFF/OPMODE_ON) have
been removed, as they did not have any effect. This is as per Przemyslaw:
I looked into the documentation and there is a "ENB8" pin in PMIC package.
This pin allows steering BUCK8 ON/OFF by the hardware. If ENB8 is set to low
then you can do on/off. If high, then you cannot change its state by I2C
write, which seems to be the case with the Odroids.
Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
---
Changes in v2:
- Add comment why max77686_set_buck_mode() has been removed
Series-changes: 1
- Added gpio_request() call in board_gpio_init()
board/samsung/odroid/odroid.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/board/samsung/odroid/odroid.c b/board/samsung/odroid/odroid.c
index f7396ab..a2c008e 100644
--- a/board/samsung/odroid/odroid.c
+++ b/board/samsung/odroid/odroid.c
@@ -382,6 +382,17 @@ static void board_gpio_init(void)
gpio_set_pull(EXYNOS4X12_GPIO_X31, S5P_GPIO_PULL_UP);
gpio_set_drv(EXYNOS4X12_GPIO_X31, S5P_GPIO_DRV_4X);
gpio_direction_input(EXYNOS4X12_GPIO_X31);
+
+#ifdef CONFIG_CMD_USB
+ /* USB3503A Reference frequency */
+ gpio_request(EXYNOS4X12_GPIO_X30, "USB3503A RefFreq");
+
+ /* USB3503A Connect */
+ gpio_request(EXYNOS4X12_GPIO_X34, "USB3503A Connect");
+
+ /* USB3503A Reset */
+ gpio_request(EXYNOS4X12_GPIO_X35, "USB3503A Reset");
+#endif
}
static int pmic_init_max77686(void)
@@ -489,10 +500,8 @@ int board_usb_init(int index, enum usb_init_type init)
p_pmic = pmic_get("MAX77686_PMIC");
if (p_pmic && !pmic_probe(p_pmic)) {
- max77686_set_buck_mode(p_pmic, 8, OPMODE_OFF);
max77686_set_buck_voltage(p_pmic, 8, 750000);
max77686_set_buck_voltage(p_pmic, 8, 3300000);
- max77686_set_buck_mode(p_pmic, 8, OPMODE_ON);
}
#endif
--
1.8.3.1
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage
2014-11-21 1:26 [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage Suriyan Ramasami
2014-11-21 1:26 ` [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call Suriyan Ramasami
@ 2014-11-21 7:58 ` Przemyslaw Marczak
2014-11-24 2:19 ` Minkyu Kang
2 siblings, 0 replies; 6+ messages in thread
From: Przemyslaw Marczak @ 2014-11-21 7:58 UTC (permalink / raw)
To: u-boot
Hello Suriyan,
On 11/21/2014 02:26 AM, Suriyan Ramasami wrote:
> Add information wrt using the USB host interface for loading kernel over
> ethernet and/or usb mass storage.
>
> Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
> ---
>
> Changes in v2:
> - Make updates to be of use from a user's perspective
> Series-changes: 1
> - Add USB host notes for the Odroid
>
> doc/README.odroid | 169 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 169 insertions(+)
>
> diff --git a/doc/README.odroid b/doc/README.odroid
> index 528bb95..25b962b 100644
> --- a/doc/README.odroid
> +++ b/doc/README.odroid
> @@ -141,3 +141,172 @@ And the boot sequence is:
> - boot_fit - if "Image.itb" exists
> - boot_zimg - if "zImage" exists
> - boot_uimg - if "uImage" exists
> +
> +11. USB host support
> +====================
> +
> +The ethernet can be accessed after starting the USB subsystem in U-Boot.
> +The adapter does not come with a preconfigured MAC address, and hence it needs
> +to be set before starting USB.
> +setenv usbethaddr 02:DE:AD:BE:EF:FF
> +
> +Note that in this example a locally managed MAC address is chosen. Care should
> +be taken to make these MAC addresses unique within the same subnet.
> +
> +Start the USB subsystem:
> +Odroid # setenv usbethaddr 02:DE:AD:BE:EF:FF
> +Odroid # usb start
> +(Re)start USB...
> +USB0: USB EHCI 1.00
> +scanning bus 0 for devices... 4 USB Device(s) found
> + scanning usb for storage devices... 1 Storage Device(s) found
> + scanning usb for ethernet devices... 1 Ethernet Device(s) found
> +Odroid #
> +
> +Automatic IP assignment:
> +------------------------
> +If the ethernet is connected to a DHCP server (router maybe with DHCP enabled),
> +then the below will automatically assign an ip address through DHCP.
> +setenv autoload no
> +dhcp
> +
> +Odroid # setenv autoload no
> +Odroid # dhcp
> +Waiting for Ethernet connection... done.
> +BOOTP broadcast 1
> +DHCP client bound to address 192.168.1.10 (524 ms)
> +Odroid #
> +
> +Note that this automatically sets the many IP address related variables in
> +U-Boot that is obtained from the DHCP server.
> +
> +Odroid # printenv ipaddr netmask gatewayip dnsip
> +ipaddr=192.168.1.10
> +netmask=255.255.255.0
> +gatewayip=192.168.1.1
> +dnsip=192.168.1.1
> +
> +Ping example:
> +The ping command can be used a test to check connectivity. In this example,
> +192.168.1.27 is a pingable server in the network.
> +Odroid # ping 192.168.1.27
> +Waiting for Ethernet connection... done.
> +Using sms0 device
> +host 192.168.1.27 is alive
> +Odroid #
> +
> +Static IP assignment:
> +---------------------
> +In the case where there are no DHCP servers in the network, or you want to
> +set the IP address statically, it can be done by:
> +Odroid # setenv ipaddr 192.168.1.10
> +Odroid # ping 192.168.1.27
> +Waiting for Ethernet connection... done.
> +Using sms0 device
> +host 192.168.1.27 is alive
> +
> +TFTP booting:
> +-------------
> +Say there exists a tftp server in the network with address 192.168.1.27 and
> +it serves a kernel image (zImage.3.17) and a DTB blob (exynos4412-odroidu3.dtb)
> +that needs to be loaded and booted. It can be accomplished as below:
> +(Assumes that you have setenv usbethaddr, and have not set autoload to no)
> +
> +Odroid # setenv serverip 192.168.1.27
> +Odroid # tftpboot 0x40080000 zImage.3.17
> +Waiting for Ethernet connection... done.
> +Using sms0 device
> +TFTP from server 192.168.1.27; our IP address is 192.168.1.10
> +Filename 'zImage.3.17'.
> +Load address: 0x40080000
> +Loading: #################################################################
> + #################################################################
> + #################################################################
> + #######################
> + 52.7 KiB/s
> +done
> +Bytes transferred = 3194200 (30bd58 hex)
> +Odroid # tftpboot 0x42000000 exynos4412-odroidu3.dtb
> +Waiting for Ethernet connection... done.
> +Using sms0 device
> +TFTP from server 192.168.1.27; our IP address is 192.168.1.10
> +Filename 'exynos4412-odroidu3.dtb'.
> +Load address: 0x42000000
> +Loading: ####
> + 40 KiB/s
> +done
> +Bytes transferred = 46935 (b757 hex)
> +Odroid # printenv bootargs
> +bootargs=Please use defined boot
> +Odroid # setenv bootargs console=ttySAC1,115200n8 root=/dev/mmcblk0p2 rootwait
> +Odroid # bootz 40080000 - 42000000
> +Kernel image @ 0x40080000 [ 0x000000 - 0x30bd58 ]
> +## Flattened Device Tree blob at 42000000
> + Booting using the fdt blob at 0x42000000
> + Loading Device Tree to 4fff1000, end 4ffff756 ... OK
> +
> +Starting kernel ...
> +
> +[ 0.000000] Booting Linux on physical CPU 0xa00
> +... etc ...
> +
> +In the above example you can substitute 'dhcp' for 'tftpboot' as well.
> +
> +USB Storage booting:
> +--------------------
> +Similarly we can use the USB storage to load the kernel image/initrd/fdt etc
> +and boot. For this example, there is a USB drive plugged in. It has a FAT
> +1st partition and an EXT 2nd partition. Using the generic FS (ls/load) makes
> +it even easier to work with FAT/EXT file systems.
> +For this example the second EXT partition is used for booting and as rootfs.
> +The boot files - kernel and the dtb are present in the /boot directory of the
> +second partition.
> +
> +Odroid # usb start
> +(Re)start USB...
> +USB0: USB EHCI 1.00
> +scanning bus 0 for devices... 4 USB Device(s) found
> + scanning usb for storage devices... 1 Storage Device(s) found
> + scanning usb for ethernet devices...
> +Error: sms0 address not set. <----- Note the error as usbethaddr
> +Warning: failed to set MAC address <----- is not set.
> +1 Ethernet Device(s) found
> +Odroid # usb part 0
> +
> +Partition Map for USB device 0 -- Partition Type: DOS
> +
> +Part Start Sector Num Sectors UUID Type
> + 1 3072 263168 000c4046-01 06
> + 2 266240 13457408 000c4046-02 83
> +
> +Odroid # ls usb 0:2 /boot
> +<DIR> 4096 .
> +<DIR> 4096 ..
> + 353 boot.scr
> + 281 boot.txt
> + 101420 config-3.8.13.23
> + 2127254 initrd.img-3.8.13.23
> + 2194825 uInitrd
> + 2194825 uInitrd-3.8.13.23
> + 2453112 zImage
> + 101448 config-3.8.13.26
> + 2127670 uInitrd-3.8.13.26
> + 2127606 initrd.img-3.8.13.26
> + 3194200 zImage.3.17 <--- Kernel
> + 46935 exynos4412-odroidu3.dtb <--- DTB
> +Odroid # load usb 0:2 40080000 /boot/zImage.3.17
> +3194200 bytes read in 471 ms (6.5 MiB/s)
> +Odroid # load usb 0:2 42000000 /boot/exynos4412-odroidu3.dtb
> +46935 bytes read in 233 ms (196.3 KiB/s)
> +Odroid # setenv bootargs console=ttySAC1,115200n8 root=/dev/sda2 rootwait
> +Odroid # bootz 40080000 - 42000000
> +Kernel image @ 0x40080000 [ 0x000000 - 0x30bd58 ]
> +## Flattened Device Tree blob at 42000000
> + Booting using the fdt blob at 0x42000000
> + Loading Device Tree to 4fff1000, end 4ffff756 ... OK
> +
> +Starting kernel ...
> +
> +[ 0.000000] Booting Linux on physical CPU 0xa00
> +
> +Please refer to README.usb for additional information.
>
This is a very complete instruction. Thank you for a great job!
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Best regards,
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call
2014-11-21 1:26 ` [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call Suriyan Ramasami
@ 2014-11-21 16:05 ` Sjoerd Simons
2014-11-24 2:20 ` Minkyu Kang
1 sibling, 0 replies; 6+ messages in thread
From: Sjoerd Simons @ 2014-11-21 16:05 UTC (permalink / raw)
To: u-boot
On Thu, 2014-11-20 at 17:26 -0800, Suriyan Ramasami wrote:
> The USB host code was missing gpio_request() calls before using the gpio
> functions, causing errors to be printed out.
>
> As a side note calls to max77686_set_buck_mode(OPMODE_OFF/OPMODE_ON) have
> been removed, as they did not have any effect. This is as per Przemyslaw:
> I looked into the documentation and there is a "ENB8" pin in PMIC package.
> This pin allows steering BUCK8 ON/OFF by the hardware. If ENB8 is set to low
> then you can do on/off. If high, then you cannot change its state by I2C
> write, which seems to be the case with the Odroids.
>
> Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
> Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
Tested on top of u-boot-samsung head
(6a23c6533c880d557e786df81fa21b62168db6d9), with this patch ethernet
support work on my Odroid X2 (emmc boot). Free free to add,
Tested-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
> ---
>
> Changes in v2:
> - Add comment why max77686_set_buck_mode() has been removed
> Series-changes: 1
> - Added gpio_request() call in board_gpio_init()
>
> board/samsung/odroid/odroid.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/board/samsung/odroid/odroid.c b/board/samsung/odroid/odroid.c
> index f7396ab..a2c008e 100644
> --- a/board/samsung/odroid/odroid.c
> +++ b/board/samsung/odroid/odroid.c
> @@ -382,6 +382,17 @@ static void board_gpio_init(void)
> gpio_set_pull(EXYNOS4X12_GPIO_X31, S5P_GPIO_PULL_UP);
> gpio_set_drv(EXYNOS4X12_GPIO_X31, S5P_GPIO_DRV_4X);
> gpio_direction_input(EXYNOS4X12_GPIO_X31);
> +
> +#ifdef CONFIG_CMD_USB
> + /* USB3503A Reference frequency */
> + gpio_request(EXYNOS4X12_GPIO_X30, "USB3503A RefFreq");
> +
> + /* USB3503A Connect */
> + gpio_request(EXYNOS4X12_GPIO_X34, "USB3503A Connect");
> +
> + /* USB3503A Reset */
> + gpio_request(EXYNOS4X12_GPIO_X35, "USB3503A Reset");
> +#endif
> }
>
> static int pmic_init_max77686(void)
> @@ -489,10 +500,8 @@ int board_usb_init(int index, enum usb_init_type init)
>
> p_pmic = pmic_get("MAX77686_PMIC");
> if (p_pmic && !pmic_probe(p_pmic)) {
> - max77686_set_buck_mode(p_pmic, 8, OPMODE_OFF);
> max77686_set_buck_voltage(p_pmic, 8, 750000);
> max77686_set_buck_voltage(p_pmic, 8, 3300000);
> - max77686_set_buck_mode(p_pmic, 8, OPMODE_ON);
> }
>
> #endif
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage
2014-11-21 1:26 [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage Suriyan Ramasami
2014-11-21 1:26 ` [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call Suriyan Ramasami
2014-11-21 7:58 ` [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage Przemyslaw Marczak
@ 2014-11-24 2:19 ` Minkyu Kang
2 siblings, 0 replies; 6+ messages in thread
From: Minkyu Kang @ 2014-11-24 2:19 UTC (permalink / raw)
To: u-boot
On 21/11/14 10:26, Suriyan Ramasami wrote:
> Add information wrt using the USB host interface for loading kernel over
> ethernet and/or usb mass storage.
>
> Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
> ---
>
> Changes in v2:
> - Make updates to be of use from a user's perspective
> Series-changes: 1
> - Add USB host notes for the Odroid
>
> doc/README.odroid | 169 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 169 insertions(+)
>
applied to u-boot-samsung.
Thanks,
Minkyu Kang.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call
2014-11-21 1:26 ` [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call Suriyan Ramasami
2014-11-21 16:05 ` Sjoerd Simons
@ 2014-11-24 2:20 ` Minkyu Kang
1 sibling, 0 replies; 6+ messages in thread
From: Minkyu Kang @ 2014-11-24 2:20 UTC (permalink / raw)
To: u-boot
On 21/11/14 10:26, Suriyan Ramasami wrote:
> The USB host code was missing gpio_request() calls before using the gpio
> functions, causing errors to be printed out.
>
> As a side note calls to max77686_set_buck_mode(OPMODE_OFF/OPMODE_ON) have
> been removed, as they did not have any effect. This is as per Przemyslaw:
> I looked into the documentation and there is a "ENB8" pin in PMIC package.
> This pin allows steering BUCK8 ON/OFF by the vhardware. If ENB8 is set to low
> then you can do on/off. If high, then you cannot change its state by I2C
> write, which seems to be the case with the Odroids.
>
> Signed-off-by: Suriyan Ramasami <suriyan.r@gmail.com>
> Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
> ---
>
> Changes in v2:
> - Add comment why max77686_set_buck_mode() has been removed
> Series-changes: 1
> - Added gpio_request() call in board_gpio_init()
>
> board/samsung/odroid/odroid.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
applied to u-boot-samsung.
Thanks,
Minkyu Kang.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-11-24 2:20 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-11-21 1:26 [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage Suriyan Ramasami
2014-11-21 1:26 ` [U-Boot] [PATCH v2 2/2] odroid: usbhost - Add missing gpio_request call Suriyan Ramasami
2014-11-21 16:05 ` Sjoerd Simons
2014-11-24 2:20 ` Minkyu Kang
2014-11-21 7:58 ` [U-Boot] [PATCH v2 1/2] odroid: Update README with USB host usage Przemyslaw Marczak
2014-11-24 2:19 ` Minkyu Kang
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