From b38a569901a617a1249ceac15a40a2306388b139 Mon Sep 17 00:00:00 2001 From: Daniel Schwierzeck Date: Mon, 28 Mar 2011 18:33:54 +0200 Subject: 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 Cc: Wolfgang Denk Signed-off-by: Shinya Kuribayashi --- doc/README.Purple | 84 ------------------------------------------------------- 1 file changed, 84 deletions(-) delete mode 100644 doc/README.Purple (limited to 'doc') diff --git a/doc/README.Purple b/doc/README.Purple deleted file mode 100644 index 0098e26c1..000000000 --- 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 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. -- cgit v1.2.3