diff options
| author | Haiying Wang <Haiying.Wang@freescale.com> | 2009-05-20 12:30:29 -0400 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-06-12 17:16:59 -0500 |
| commit | b3d7f20f43a0f8d11c65e2f92153b5512b11580c (patch) | |
| tree | 8a840b991bf04c01c27ab769d8185f78ea07e752 /cpu/mpc85xx/speed.c | |
| parent | 71b358cc26792889bbac35054d8e89d59b3fabc4 (diff) | |
| download | u-boot-imx-b3d7f20f43a0f8d11c65e2f92153b5512b11580c.zip u-boot-imx-b3d7f20f43a0f8d11c65e2f92153b5512b11580c.tar.gz u-boot-imx-b3d7f20f43a0f8d11c65e2f92153b5512b11580c.tar.bz2 | |
85xx: Add QE clk support
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Acked-by: Timur Tabi <Timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'cpu/mpc85xx/speed.c')
| -rw-r--r-- | cpu/mpc85xx/speed.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index b0f47e0..286b6b2 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -1,5 +1,5 @@ /* - * Copyright 2004 Freescale Semiconductor. + * Copyright 2004, 2007-2009 Freescale Semiconductor Inc. * (C) Copyright 2003 Motorola Inc. * Xianghua Xiao, (X.Xiao@motorola.com) * @@ -40,6 +40,9 @@ void get_sys_info (sys_info_t * sysInfo) uint plat_ratio,e500_ratio,half_freqSystemBus; uint lcrr_div; int i; +#ifdef CONFIG_QE + u32 qe_ratio; +#endif plat_ratio = (gur->porpllsr) & 0x0000003e; plat_ratio >>= 1; @@ -65,6 +68,12 @@ void get_sys_info (sys_info_t * sysInfo) } #endif +#ifdef CONFIG_QE + qe_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_QE_RATIO) + >> MPC85xx_PORPLLSR_QE_RATIO_SHIFT; + sysInfo->freqQE = qe_ratio * CONFIG_SYS_CLK_FREQ; +#endif + #if defined(CONFIG_SYS_LBC_LCRR) /* We will program LCRR to this value later */ lcrr_div = CONFIG_SYS_LBC_LCRR & LCRR_CLKDIV; @@ -112,6 +121,10 @@ int get_clocks (void) gd->mem_clk = sys_info.freqDDRBus; gd->lbc_clk = sys_info.freqLocalBus; +#ifdef CONFIG_QE + gd->qe_clk = sys_info.freqQE; + gd->brg_clk = gd->qe_clk / 2; +#endif /* * The base clock for I2C depends on the actual SOC. Unfortunately, * there is no pattern that can be used to determine the frequency, so |