[U-Boot] Commands to use U-boot in fpga
Hi,
I am new to U-Boot and I want to use it for dumping linux to a sparc processor (leon2) which I have implemented in Spartan 3E fpga. Is it possible?
This is to implement a router code in my processor.
Hi Ammu,
Hi,
I am new to U-Boot and I want to use it for dumping linux to a sparc processor (leon2) which I have implemented in Spartan 3E fpga. Is it possible?
First you need to check if the architecture on which you run u-boot is supported (sparc?).
There are some IP soft cores supported in u-boot: arch/nios2/ arch/microblaze/
Regarding SPARC:
http://git.denx.de/?p=u-boot/u-boot-sparc.git;a=summary
But if I remember correctly it has been removed recently.
However, if you want to re-add it for your platform -> patches are as always welcome :-)
This is to implement a router code in my processor.
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Architecture is LEON2 and is supported by U-Boot. But the steps involved in my work are
*1. Implement LEON2 processor in FPGA(Spartan3E or any other fpga)* *2. Deploy OS in that processor.* *3. Implement a router on that processor with OS.*
First step is possible as I have the HDL code of LEON2. I can implement it on spartan3E. Are the next 2 steps possible with U-Boot?
On Fri, Oct 27, 2017 at 4:28 PM, Lukasz Majewski lukma@denx.de wrote:
Hi Ammu,
Hi,
I am new to U-Boot and I want to use it for dumping linux to a sparc processor (leon2) which I have implemented in Spartan 3E fpga. Is it possible?
First you need to check if the architecture on which you run u-boot is supported (sparc?).
There are some IP soft cores supported in u-boot: arch/nios2/ arch/microblaze/
Regarding SPARC:
http://git.denx.de/?p=u-boot/u-boot-sparc.git;a=summary
But if I remember correctly it has been removed recently.
However, if you want to re-add it for your platform -> patches are as always welcome :-)
This is to implement a router code in my processor.
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
On Fri, 27 Oct 2017 16:45:16 +0530 Ammu Lakshmy ammulakshmy91@gmail.com wrote:
Architecture is LEON2 and is supported by U-Boot. But the steps involved in my work are
*1. Implement LEON2 processor in FPGA(Spartan3E or any other fpga)*
Ok.
*2. Deploy OS in that processor.*
When you have working soft core of LEON2 - then you would need:
- U-boot ported to it (and this is not the problem - since you say that it is supported in U-Boot)
- Linux mainline kernel, which can run on this processor.
U-boot is only a bootloader, which means that its main purpose is to setup environment (like initialize DRAM, load OS from persistent storage) for pass execution flow to OS (Linux)
*3. Implement a router on that processor with OS.*
If you have Linux running on the soft core and enough number of ETH phy devices you can configure Linux box to work as a router (with proper iproute[2] rules).
TO sum up:
You need 3 things:
- U-boot running on your soft core - Linux running on your soft core - Number of working ETH phys to connect network cables.
First step is possible as I have the HDL code of LEON2. I can implement it on spartan3E. Are the next 2 steps possible with U-Boot?
On Fri, Oct 27, 2017 at 4:28 PM, Lukasz Majewski lukma@denx.de wrote:
Hi Ammu,
Hi,
I am new to U-Boot and I want to use it for dumping linux to a sparc processor (leon2) which I have implemented in Spartan 3E fpga. Is it possible?
First you need to check if the architecture on which you run u-boot is supported (sparc?).
There are some IP soft cores supported in u-boot: arch/nios2/ arch/microblaze/
Regarding SPARC:
http://git.denx.de/?p=u-boot/u-boot-sparc.git;a=summary
But if I remember correctly it has been removed recently.
However, if you want to re-add it for your platform -> patches are as always welcome :-)
This is to implement a router code in my processor.
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
-----Original Message----- From: U-Boot [mailto:u-boot-bounces@lists.denx.de] On Behalf Of Lukasz Majewski Sent: Friday, October 27, 2017 5:18 PM To: Ammu Lakshmy ammulakshmy91@gmail.com Cc: u-boot@lists.denx.de Subject: Re: [U-Boot] Commands to use U-boot in fpga
On Fri, 27 Oct 2017 16:45:16 +0530 Ammu Lakshmy ammulakshmy91@gmail.com wrote:
Architecture is LEON2 and is supported by U-Boot. But the steps involved in my work are
*1. Implement LEON2 processor in FPGA(Spartan3E or any other fpga)*
Ok.
*2. Deploy OS in that processor.*
When you have working soft core of LEON2 - then you would need:
- U-boot ported to it (and this is not the problem - since you say that it is supported in U-Boot)
Ammu, once you have working LEON2, I guess you can use U-Boot from https://github.com/qoriq-open-source/u-boot/tree/master/arch/sparc/cpu/leon2
participants (3)
-
Ammu Lakshmy -
Calvin Johnson -
Lukasz Majewski