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| author | Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> | 2011-03-28 18:33:54 +0200 |
|---|---|---|
| committer | Shinya Kuribayashi <skuribay@pobox.com> | 2011-04-02 22:07:12 +0900 |
| commit | b38a569901a617a1249ceac15a40a2306388b139 (patch) | |
| tree | 010fef8d55d7dc323e39e596b4769b8017c776aa /doc | |
| parent | 67a490d60d70f2b01d55976440ba30154af96965 (diff) | |
| download | u-boot-imx-b38a569901a617a1249ceac15a40a2306388b139.zip u-boot-imx-b38a569901a617a1249ceac15a40a2306388b139.tar.gz u-boot-imx-b38a569901a617a1249ceac15a40a2306388b139.tar.bz2 | |
MIPS: Purple: Remove Purple support
The Purple SoC and eval board are not actively maintained since years.
This patch removes the support completely as aggreed with Wolfgang Denk.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.Purple | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/doc/README.Purple b/doc/README.Purple deleted file mode 100644 index 0098e26..0000000 --- a/doc/README.Purple +++ /dev/null @@ -1,84 +0,0 @@ -Installation Instructions: --------------------------- - -1. Put the s2 switch into the following position: - - Off On - ------ - |x | - | x| - |x | - | X| - ------ - - Put the s3 switch into the following position: - - Off On - ------ - | x | - | x | - | x| - | x| - ------ - - Put the s4 switch into the following position: - - Off On - ------ - |x | - |x | - |x | - |x | - |x | - | x| - | x| - |x | - ------ - -2. Connect to the serial console and to the BDI. Power on. On the - serial line, you should see: - - PURPLE@1.2> - -3. Type '8'. No echo will be displayed. In response, you should get: - - 7A(pass) - -4. From BDI, enter command: - - mmw 0xb800d860 0x0042c7ff - -5. Then, from BDI: - - erase 0xB0000000 - erase 0xB0008000 - erase 0xB000C000 - erase 0xB0010000 - erase 0xB0020000 - - prog 0xB0000000 <u-boot.bin> bin - -6. Power off. Restore the original S2 switch position: - - Off On - ------ - | x| - | x| - |x | - | X| - ------ - - Power on. U-Boot should come up. - - -Implementation Notes: ---------------------- - -Due to the RAM/flash bus arbitration problem the suggested workaround -had to be implemented. It works okay. On the downside is that you -can't really check whether 'erase' is complete by polling flash as it -is usually done. Instead, the flash driver simply waits for a given -time and assumes that erase then has passed. This behaviour is -identical to what the VxWorks driver does; also, the same timeout (6 -seconds) was chosen. Note that this timeout applies for each erase -operation, i. e. per erased sector. |