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imx233:fuze+: major memory and usb rework

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- now identity map dram uncached and have a cached and buffered virtual alias
- rework dma to handle virtual to physical pointers conversion
- fix lcd frame pointer
- implement usb detection properly
- implement bootloader usb properly
- allow the bootloader to disable MMC windowing (useful for recovery)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30432 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Amaury Pouly 2011-09-05 11:29:32 +00:00
parent 11e1f71612
commit 7d4fed53cc
17 changed files with 353 additions and 104 deletions
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16
firmware/target/arm/imx233/boot.lds
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@ -9,7 +9,8 @@ STARTUP(target/arm/imx233/crt0.o)
MEMORY
{
IRAM : ORIGIN = IRAM_ORIG, LENGTH = IRAM_SIZE
DRAM : ORIGIN = DRAM_ORIG, LENGTH = DRAM_SIZE - TTB_SIZE - FRAME_SIZE
DRAM : ORIGIN = CACHED_DRAM_ADDR, LENGTH = DRAM_SIZE - TTB_SIZE - FRAME_SIZE
UNCACHED_DRAM : ORIGIN = UNCACHED_DRAM_ADDR, LENGTH = DRAM_SIZE - TTB_SIZE - FRAME_SIZE
}
SECTIONS
@ -57,10 +58,23 @@ SECTIONS
stackend = .;
} > DRAM
/* treat .bss and .ncbss as a single section */
.bss (NOLOAD) :
{
_edata = .;
*(.bss*);
} > DRAM
/* align on cache size boundary to avoid mixing cached and noncached stuff */
.ncbss . - CACHED_DRAM_ADDR + UNCACHED_DRAM_ADDR (NOLOAD) :
{
. = ALIGN(CACHEALIGN_SIZE);
*(.ncbss*)
. = ALIGN(CACHEALIGN_SIZE);
} AT> DRAM
.bssendadr . - UNCACHED_DRAM_ADDR + CACHED_DRAM_ADDR (NOLOAD) :
{
_end = .;
} > DRAM
}