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| author | Trent Piepho <tpiepho@freescale.com> | 2008-12-03 15:16:34 -0800 |
|---|---|---|
| committer | Andrew Fleming-AFLEMING <afleming@freescale.com> | 2008-12-19 18:20:25 -0600 |
| commit | a5d212a263c58cc746481bf1fc878510533ce7d6 (patch) | |
| tree | eb08c782227ec1399e96eb6dc082db2123262e41 /cpu | |
| parent | 58ec4866ed916c7e422f5107bb27b0822084728e (diff) | |
| download | u-boot-imx-a5d212a263c58cc746481bf1fc878510533ce7d6.zip u-boot-imx-a5d212a263c58cc746481bf1fc878510533ce7d6.tar.gz u-boot-imx-a5d212a263c58cc746481bf1fc878510533ce7d6.tar.bz2 | |
mpc8xxx: LCRR[CLKDIV] is sometimes five bits
On newer CPUs, 8536, 8572, and 8610, the CLKDIV field of LCRR is five bits
instead of four.
In order to avoid an ifdef, LCRR_CLKDIV is set to 0x1f on all systems. It
should be safe as the fifth bit was defined as reserved and set to 0.
Code that was using a hard coded 0x0f is changed to use LCRR_CLKDIV.
Signed-off-by: Trent Piepho <tpiepho@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jon Loeliger <jdl@freescale.com>
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/mpc85xx/cpu.c | 2 | ||||
| -rw-r--r-- | cpu/mpc86xx/cpu.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 943602f..59a9ac8 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -174,7 +174,7 @@ int checkcpu (void) lcrr = lbc->lcrr; } #endif - clkdiv = lcrr & 0x0f; + clkdiv = lcrr & LCRR_CLKDIV; if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) { #if defined(CONFIG_MPC8548) || defined(CONFIG_MPC8544) || \ defined(CONFIG_MPC8572) || defined(CONFIG_MPC8536) diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c index 4cace98..0ff76e3 100644 --- a/cpu/mpc86xx/cpu.c +++ b/cpu/mpc86xx/cpu.c @@ -110,7 +110,7 @@ checkcpu(void) lcrr = lbc->lcrr; } #endif - clkdiv = lcrr & 0x0f; + clkdiv = lcrr & LCRR_CLKDIV; if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) { printf("LBC:%4lu MHz\n", sysinfo.freqSystemBus / 1000000 / clkdiv); |