diff options
Diffstat (limited to 'drivers/mfd/glamo/glamo-core.h')
| -rw-r--r-- | drivers/mfd/glamo/glamo-core.h | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/drivers/mfd/glamo/glamo-core.h b/drivers/mfd/glamo/glamo-core.h index e5b1a35518a..702430450b4 100644 --- a/drivers/mfd/glamo/glamo-core.h +++ b/drivers/mfd/glamo/glamo-core.h @@ -3,18 +3,33 @@ #include <linux/mfd/glamo.h> +/* Amount of Glamo memory */ +#define GLAMO_INTERNAL_RAM_SIZE 0x800000 + +/* Arbitrarily determined amount for the hardware cursor */ +#define GLAMO_CURSOR_SIZE (4096) +#define GLAMO_MMC_BUFFER_SIZE (64 * 1024) /* 64k MMC buffer */ +#define GLAMO_CMDQ_SIZE (128 * 1024) /* 128k ring buffer */ +/* Remaining memory will be used for 2D and 3D graphics */ +#define GLAMO_FB_SIZE (GLAMO_INTERNAL_RAM_SIZE \ + - GLAMO_CURSOR_SIZE \ + - GLAMO_MMC_BUFFER_SIZE \ + - GLAMO_CMDQ_SIZE) +/* A 640x480, 16bpp, double-buffered framebuffer */ +#if (GLAMO_FB_SIZE < (640 * 480 * 4)) /* == 0x12c000 */ +#error Not enough Glamo VRAM for framebuffer! +#endif + /* for the time being, we put the on-screen framebuffer into the lowest * VRAM space. This should make the code easily compatible with the various - * 2MB/4MB/8MB variants of the Smedia chips */ -#define GLAMO_OFFSET_VRAM 0x800000 -#define GLAMO_OFFSET_FB (GLAMO_OFFSET_VRAM) - -/* we only allocate the minimum possible size for the framebuffer to make - * sure we have sufficient memory for other functions of the chip */ -/*#define GLAMO_FB_SIZE (640*480*4) *//* == 0x12c000 */ -#define GLAMO_INTERNAL_RAM_SIZE 0x800000 -#define GLAMO_MMC_BUFFER_SIZE (64 * 1024) -#define GLAMO_FB_SIZE (GLAMO_INTERNAL_RAM_SIZE - GLAMO_MMC_BUFFER_SIZE) + * 2MB/4MB/8MB variants of the Smedia chips + * glamo-fb.c assumes FB comes first, followed by cursor, so DON'T MOVE THEM + * (see glamo_regs[] in glamo-fb.c for more information) */ +#define GLAMO_MEM_BASE (0x800000) +#define GLAMO_OFFSET_FB (0x000000) +#define GLAMO_OFFSET_CURSOR (GLAMO_OFFSET_FB + GLAMO_FB_SIZE) +#define GLAMO_OFFSET_MMC (GLAMO_OFFSET_CURSOR + GLAMO_CURSOR_SIZE) +#define GLAMO_OFFSET_CMDQ (GLAMO_OFFSET_MMC + GLAMO_MMC_BUFFER_SIZE) enum glamo_pll { GLAMO_PLL1, |