path: root/MAINTAINERS
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authorMike Dunn <>2013-06-18 11:08:50 -0700
committerMarek Vasut <>2013-06-22 15:25:28 +0200
commit0dc0e846f3634fcc728f086ae1b7a4b76294e4c9 (patch)
treec4c817d7b7146e1a6b7dbcabcd76bd5625a4d31f /MAINTAINERS
parentfbf87b1823dd5ebc2a384711ea2c677543019ece (diff)
pxa: add support for palmtreo680 board
This patch adds support for the Palm Treo 680 smartphone. A quick overview of u-boot implementation on the treo 680... The treo 680 has a Diskonchip G4 nand flash chip. This device has a 2k region that maps to the system bus at the reset vector in a NOR-like fashion so that it can be used as the boot device. The phone is shipped with this 2k region configured as write-protected (can't be modified) and programmed with an initial program loader (IPL). At power-up, this IPL loads the contents of two flash blocks to SDRAM and jumps to it. The capacity of the two blocks is not large enough to hold all of u-boot, so a u-boot SPL is used. To conserve flash space, these two blocks and the necessary number of subsequent blocks are programmed with a concatenated spl + u-boot image. That way, the IPL will also load a portion of u-boot proper, and when the spl runs, it relocates the portion of u-boot that the IPL has already loaded, and then resumes loading the remaining part of u-boot before jumping to it. The default_environment is used (CONFIG_ENV_IS_NOWHERE) because I didn't think that having a writable environment was worth the cost of a flash block, although adding it would be straightforward. I abuse the CONFIG_EXTRA_ENV_SETTINGS option to specify the usbtty for the console (CONFIG_SYS_CONSOLE_IS_IN_ENV). Support for the LCD is included, but currently it is only useful for displaying the u-boot splash screen. But if u-boot is built without the usbtty console, it does display the auto-boot progress nicely. Signed-off-by: Mike Dunn <>
Diffstat (limited to 'MAINTAINERS')
1 files changed, 3 insertions, 0 deletions
index 7820375e9c..9abff0a982 100644
@@ -651,6 +651,9 @@ Wolfgang Denk <>
imx27lite i.MX27
qong i.MX31
+Mike Dunn <>
+ palmtreo680 pxa270
Kristoffer Ericson <>
jornada SA1110
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