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| author | Amaury Pouly <pamaury@rockbox.org> | 2011-09-05 11:29:32 +0000 |
|---|---|---|
| committer | Amaury Pouly <pamaury@rockbox.org> | 2011-09-05 11:29:32 +0000 |
| commit | 7d4fed53cc1e8b0e5aa250ebea3a1b53fc3a50b2 (patch) | |
| tree | 236a72d742675715fd599daaa98af8f4eeb45ad8 /firmware/export/imx233.h | |
| parent | 11e1f71612f6c1ef8c17f8ceea17f69fd4bc7b02 (diff) | |
| download | rockbox-7d4fed53cc1e8b0e5aa250ebea3a1b53fc3a50b2.tar.gz rockbox-7d4fed53cc1e8b0e5aa250ebea3a1b53fc3a50b2.zip | |
imx233:fuze+: major memory and usb rework
- 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
Diffstat (limited to 'firmware/export/imx233.h')
| -rw-r--r-- | firmware/export/imx233.h | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/firmware/export/imx233.h b/firmware/export/imx233.h index d9ea06a420..2a2097b5d7 100644 --- a/firmware/export/imx233.h +++ b/firmware/export/imx233.h @@ -21,17 +21,41 @@ #ifndef __IMX233_H__ #define __IMX233_H__ +/* + * Chip Memory Map: + * 0x00000000 - 0x00007fff: on chip ram + * 0x40000000 - 0x5fffffff: dram (512Mb max) + * 0x80000000 - 0x80100000: memory mapped registers + * We use the following map: + * 0x60000000 - 0x7fffffff: dram (cached) + * 0x90000000 - 0xafffffff: dram (buffered) + * everything else : identity mapped (uncached) + * + * As a side note it's important to notice that uncached dram is identity mapped + */ + #define IRAM_ORIG 0 #define IRAM_SIZE 0x8000 #define DRAM_ORIG 0x40000000 #define DRAM_SIZE (MEMORYSIZE * 0x100000) +#define UNCACHED_DRAM_ADDR 0x40000000 +#define CACHED_DRAM_ADDR 0x60000000 +#define BUFFERED_DRAM_ADDR 0x90000000 +#define CACHEALIGN_SIZE 32 + +#define PHYSICAL_ADDR(a) \ + ((typeof(a))((uintptr_t)(a) >= CACHED_DRAM_ADDR ? \ + ((uintptr_t)(a) - CACHED_DRAM_ADDR + UNCACHED_DRAM_ADDR) \ + :(uintptr_t)(a))) +#define UNCACHED_ADDR(a) PHYSICAL_ADDR(a) + #define TTB_BASE_ADDR (DRAM_ORIG + DRAM_SIZE - TTB_SIZE) #define TTB_SIZE 0x4000 #define TTB_BASE ((unsigned long *)TTB_BASE_ADDR) #define FRAME_SIZE (LCD_WIDTH * LCD_HEIGHT * LCD_DEPTH / 8) -#define LCD_FRAME_ADDR (DRAM_ORIG + DRAM_SIZE - TTB_SIZE - FRAME_SIZE) -#define FRAME ((unsigned short *)LCD_FRAME_ADDR) +#define FRAME_PHYS_ADDR (DRAM_ORIG + DRAM_SIZE - TTB_SIZE - FRAME_SIZE) +#define FRAME ((void *)(FRAME_PHYS_ADDR - UNCACHED_DRAM_ADDR + BUFFERED_DRAM_ADDR)) /* USBOTG */ #define USB_QHARRAY_ATTR __attribute__((section(".qharray"),nocommon,aligned(2048))) @@ -52,5 +76,7 @@ #define CACHEALIGN_BITS 4 +#define __XTRACT(reg, field) ((reg & reg##__##field##_BM) >> reg##__##field##_BP) +#define __XTRACT_EX(val, field) (((val) & field##_BM) >> field##_BP) #endif /* __IMX233_H__ */ |