From f59b55a5b8fcadaa99781ba48e7a38e956afa527 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Tue, 27 Nov 2007 23:25:02 -0600 Subject: Stop using immap_t for guts offset on 85xx In the future the offsets to various blocks may not be in same location. Move to using CFG_MPC85xx_GUTS_ADDR as the base of the guts registers instead of getting it via &immap->im_gur. Signed-off-by: Kumar Gala --- cpu/mpc85xx/speed.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'cpu/mpc85xx/speed.c') diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index 12359a2d64b..5c35d4a50af 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -35,8 +35,7 @@ DECLARE_GLOBAL_DATA_PTR; void get_sys_info (sys_info_t * sysInfo) { - volatile immap_t *immap = (immap_t *)CFG_IMMR; - volatile ccsr_gur_t *gur = &immap->im_gur; + volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); uint plat_ratio,e500_ratio,half_freqSystemBus; plat_ratio = (gur->porpllsr) & 0x0000003e; -- cgit v1.2.3 From aafeefbdb8b029f5ca2a195598d0a501a606eea9 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Wed, 28 Nov 2007 00:36:33 -0600 Subject: Stop using immap_t for cpm offset on 85xx In the future the offsets to various blocks may not be in same location. Move to using CFG_MPC85xx_CPM_ADDR as the base of the CPM registers instead of getting it via &immap->im_cpm. Signed-off-by: Kumar Gala --- cpu/mpc85xx/speed.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'cpu/mpc85xx/speed.c') diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index 5c35d4a50af..293269c5732 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -55,12 +55,12 @@ int get_clocks (void) { sys_info_t sys_info; #if defined(CONFIG_CPM2) - volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CFG_MPC85xx_CPM_ADDR; uint sccr, dfbrg; /* set VCO = 4 * BRG */ - immap->im_cpm.im_cpm_intctl.sccr &= 0xfffffffc; - sccr = immap->im_cpm.im_cpm_intctl.sccr; + cpm->im_cpm_intctl.sccr &= 0xfffffffc; + sccr = cpm->im_cpm_intctl.sccr; dfbrg = (sccr & SCCR_DFBRG_MSK) >> SCCR_DFBRG_SHIFT; #endif get_sys_info (&sys_info); -- cgit v1.2.3 From d435793229ce29a42797c1edc39f5b34f987f91a Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 7 Dec 2007 04:59:26 -0600 Subject: Handle Asynchronous DDR clock on 85xx The MPC8572 introduces the concept of an asynchronous DDR clock with regards to the platform clock. Introduce get_ddr_freq() to report the DDR freq regardless of sync/async mode. Signed-off-by: Kumar Gala --- cpu/mpc85xx/speed.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'cpu/mpc85xx/speed.c') diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index 293269c5732..27de37afa87 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -48,6 +48,15 @@ void get_sys_info (sys_info_t * sysInfo) * overflow for processor speeds above 2GHz */ half_freqSystemBus = sysInfo->freqSystemBus/2; sysInfo->freqProcessor = e500_ratio*half_freqSystemBus; + sysInfo->freqDDRBus = sysInfo->freqSystemBus; + +#ifdef CONFIG_DDR_CLK_FREQ + { + u32 ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9; + if (ddr_ratio != 0x7) + sysInfo->freqDDRBus = ddr_ratio * CONFIG_DDR_CLK_FREQ; + } +#endif } @@ -93,3 +102,19 @@ ulong get_bus_freq (ulong dummy) return val; } + +/******************************************** + * get_ddr_freq + * return ddr bus freq in Hz + *********************************************/ +ulong get_ddr_freq (ulong dummy) +{ + ulong val; + + sys_info_t sys_info; + + get_sys_info (&sys_info); + val = sys_info.freqDDRBus; + + return val; +} -- cgit v1.2.3