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| author | James Yang <James.Yang@freescale.com> | 2008-02-08 16:44:53 -0600 |
|---|---|---|
| committer | Andrew Fleming-AFLEMING <afleming@freescale.com> | 2008-03-26 11:43:04 -0500 |
| commit | 591933ca6eabc440e6ed6967233aaf56fce464a3 (patch) | |
| tree | d62e9b345930064e26fde5485c2cafb688445f26 /cpu/mpc85xx/cpu.c | |
| parent | 1ced121600b2060ab2ff9f0fddd9421fd70a0dc6 (diff) | |
| download | u-boot-imx-591933ca6eabc440e6ed6967233aaf56fce464a3.zip u-boot-imx-591933ca6eabc440e6ed6967233aaf56fce464a3.tar.gz u-boot-imx-591933ca6eabc440e6ed6967233aaf56fce464a3.tar.bz2 | |
85xx: get_tbclk() speed up and rounding fix
Speed up get_tbclk() by referencing pre-computed bus clock
frequency value from global data instead of sys_info_t. Fix
rounding of result to nearest; previously it was rounding
upwards.
Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'cpu/mpc85xx/cpu.c')
| -rw-r--r-- | cpu/mpc85xx/cpu.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 0ac004d..4aac599 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -30,6 +30,8 @@ #include <command.h> #include <asm/cache.h> +DECLARE_GLOBAL_DATA_PTR; + struct cpu_type { char name[15]; u32 soc_ver; @@ -201,11 +203,7 @@ int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) */ unsigned long get_tbclk (void) { - - sys_info_t sys_info; - - get_sys_info(&sys_info); - return ((sys_info.freqSystemBus + 7L) / 8L); + return (gd->bus_clk + 4UL)/8UL; } |