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| author | Len Brown <len.brown@intel.com> | 2005-09-08 01:45:47 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2005-09-08 01:45:47 -0400 |
| commit | 64e47488c913ac704d465a6af86a26786d1412a5 (patch) | |
| tree | d3b0148592963dcde26e4bb35ddfec8b1eaf8e23 /arch/ppc/boot/simple/misc-cpci690.c | |
| parent | 4a35a46bf1cda4737c428380d1db5d15e2590d18 (diff) | |
| parent | caf39e87cc1182f7dae84eefc43ca14d54c78ef9 (diff) | |
| download | lwn-64e47488c913ac704d465a6af86a26786d1412a5.tar.gz lwn-64e47488c913ac704d465a6af86a26786d1412a5.zip | |
Merge linux-2.6 with linux-acpi-2.6
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 ef08e86c9b25..26860300fa09 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; } |