diff options
| author | Mark A. Greer <mgreer@mvista.com> | 2005-09-03 15:55:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:06:01 -0700 |
| commit | f54bef9e9c84c8dc656c55dc96c1da7b6d1c53d8 (patch) | |
| tree | de93df49c67ebf63aeca64941a201365440e9551 /arch/ppc/boot/simple/misc-cpci690.c | |
| parent | f4c6cc8d1e2305796f7fdad52d83b88cea4d2276 (diff) | |
[PATCH] ppc32: cpci690 updates
Update the cpci690 platform code:
- pass mem size in from bootwrapper via bi_rec
- some minor fixups
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc/boot/simple/misc-cpci690.c')
| -rw-r--r-- | arch/ppc/boot/simple/misc-cpci690.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/arch/ppc/boot/simple/misc-cpci690.c b/arch/ppc/boot/simple/misc-cpci690.c index ef08e86c9b2..26860300fa0 100644 --- a/arch/ppc/boot/simple/misc-cpci690.c +++ b/arch/ppc/boot/simple/misc-cpci690.c @@ -12,16 +12,56 @@ */ #include <linux/types.h> +#include <asm/io.h> #include <platforms/cpci690.h> +#define KB (1024UL) +#define MB (1024UL*KB) +#define GB (1024UL*MB) + extern u32 mv64x60_console_baud; extern u32 mv64x60_mpsc_clk_src; extern u32 mv64x60_mpsc_clk_freq; +u32 mag = 0xffff; + +unsigned long +get_mem_size(void) +{ + u32 size; + + switch (in_8(((void __iomem *)CPCI690_BR_BASE + CPCI690_BR_MEM_CTLR)) + & 0x07) { + case 0x01: + size = 256*MB; + break; + case 0x02: + size = 512*MB; + break; + case 0x03: + size = 768*MB; + break; + case 0x04: + size = 1*GB; + break; + case 0x05: + size = 1*GB + 512*MB; + break; + case 0x06: + size = 2*GB; + break; + default: + size = 0; + } + + return size; +} + void mv64x60_board_init(void __iomem *old_base, void __iomem *new_base) { mv64x60_console_baud = CPCI690_MPSC_BAUD; mv64x60_mpsc_clk_src = CPCI690_MPSC_CLK_SRC; - mv64x60_mpsc_clk_freq = CPCI690_BUS_FREQ; + mv64x60_mpsc_clk_freq = + (get_mem_size() >= (1*GB)) ? 100000000 : 133333333; } |