X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=cpu%2Fmpc86xx%2Fspeed.c;h=da5b58b73f29441761d0abd430f8d1f19a879103;hb=dbab0691d2533560f7e91b92ae844046a9ad1df3;hp=4f7e8f17dc11984bae3ef17b7102df57c6fba488;hpb=74ac5facb988fc488a707db228b177ead63a6541;p=u-boot

diff --git a/cpu/mpc86xx/speed.c b/cpu/mpc86xx/speed.c
index 4f7e8f17dc..da5b58b73f 100644
--- a/cpu/mpc86xx/speed.c
+++ b/cpu/mpc86xx/speed.c
@@ -106,6 +106,20 @@ int get_clocks(void)
 	gd->cpu_clk = sys_info.freqProcessor;
 	gd->bus_clk = sys_info.freqSystemBus;
 
+	/*
+	 * The base clock for I2C depends on the actual SOC.  Unfortunately,
+	 * there is no pattern that can be used to determine the frequency, so
+	 * the only choice is to look up the actual SOC number and use the value
+	 * for that SOC. This information is taken from application note
+	 * AN2919.
+	 */
+#ifdef CONFIG_MPC8610
+	gd->i2c1_clk = sys_info.freqSystemBus;
+#else
+	gd->i2c1_clk = sys_info.freqSystemBus / 2;
+#endif
+	gd->i2c2_clk = gd->i2c1_clk;
+
 	if (gd->cpu_clk != 0)
 		return 0;
 	else