tree 6a46d3fe57befe0d6d0097bbf5f57c7d2bad95c5
parent 406471ca307884d2203a9847ab12e375bf23594d
author Wolfgang Wegner <w.wegner@astro-kom.de> 1256918102 +0100
committer TsiChung Liew <tsicliew@gmail.com> 1269446923 -0500

add block write function to spartan3 slave serial load

Using seperate function calls for each bit-bang of slave serial
load can be painfully slow. This patch adds the possibility to
supply a block write function that loads the complete block of
data in one call (like it can already be done with Altera FPGAs).
On an MCF5373L (240 MHz) loading an XC3S4000 this reduces the load
time from around 15 seconds to around 3 seconds

Signed-off-by: Wolfgang Wegner <w.wegner at astro-kom.de>