From b3d7f20f43a0f8d11c65e2f92153b5512b11580c Mon Sep 17 00:00:00 2001
From: Haiying Wang <Haiying.Wang@freescale.com>
Date: Wed, 20 May 2009 12:30:29 -0400
Subject: 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>
---
cpu/mpc85xx/cpu.c | 4 ++++
cpu/mpc85xx/speed.c | 15 ++++++++++++++-
2 files changed, 18 insertions(+), 1 deletion(-)
(limited to 'cpu')
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index 1c3eddfd37..8f94bada04 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -186,6 +186,10 @@ int checkcpu (void)
printf("CPM: %s MHz\n", strmhz(buf1, sysinfo.freqSystemBus));
#endif
+#ifdef CONFIG_QE
+ printf(" QE:%-4s MHz\n", strmhz(buf1, sysinfo.freqQE));
+#endif
+
puts("L1: D-cache 32 kB enabled\n I-cache 32 kB enabled\n");
return 0;
diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c
index b0f47e042e..286b6b28ef 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
--
cgit