85xx, 86xx: Determine I2C clock frequencies and store in global_data

Update global_data to define i2c1_clk and i2c2_clk to 85xx and 86xx.

Update the get_clocks() function in 85xx and 86xx to determine the I2C
clock frequency and store it in gd->i2c1_clk and gd->i2c2_clk.

Signed-off-by: Timur Tabi <timur@freescale.com>

cpu/mpc85xx/speed.c

@@ -75,6 +75,9 @@ int get_clocks (void)
 	get_sys_info (&sys_info);
 	gd->cpu_clk = sys_info.freqProcessor;
 	gd->bus_clk = sys_info.freqSystemBus;
+	gd->i2c1_clk = sys_info.freqSystemBus;
+	gd->i2c2_clk = sys_info.freqSystemBus;
+
 #if defined(CONFIG_CPM2)
 	gd->vco_out = 2*sys_info.freqSystemBus;
 	gd->cpm_clk = gd->vco_out / 2;

cpu/mpc86xx/speed.c

@@ -105,6 +105,8 @@ int get_clocks(void)
 	get_sys_info(&sys_info);
 	gd->cpu_clk = sys_info.freqProcessor;
 	gd->bus_clk = sys_info.freqSystemBus;
+	gd->i2c1_clk = sys_info.freqSystemBus;
+	gd->i2c2_clk = sys_info.freqSystemBus;
 
 	if (gd->cpu_clk != 0)
 		return 0;

include/asm-ppc/global_data.h

@@ -70,8 +70,6 @@ typedef	struct	global_data {
 	u32 sdhc_clk;
 #endif
 	u32 core_clk;
-	u32 i2c1_clk;
-	u32 i2c2_clk;
 	u32 enc_clk;
 	u32 lbiu_clk;
 	u32 lclk_clk;
@@ -88,6 +86,10 @@ typedef	struct	global_data {
 	u32  ddr_sec_clk;
 #endif /* CONFIG_MPC8360 */
 #endif
+#if defined(CONFIG_MPC83XX) || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
+	u32 i2c1_clk;
+	u32 i2c2_clk;
+#endif
 #if defined(CONFIG_QE)
 	u32 qe_clk;
 	u32 brg_clk;