OMAP7XX: Clocks: Add omap850 support

This patch is part of a series which unifies all duplicated code between
omap730 and omap850. All cpu checks are converted to cpu_is_omap7xx() and
CONFIG_ARCH_OMAP850 is added to all CONFIG_ARCH_OMAP730 checks.

This file had no omap850 specific code. Initial clock support was done in
the Linwizard tree by Zebediah C. McClure.
Signed-off-by: Alistair Buxton <a.j.buxton@gmail.com>
Reviewed-by: Zebediah C. McClure <zmc@lurian.net>

arch/arm/mach-omap1/clock.c

@@ -398,7 +398,7 @@ static int omap1_select_table_rate(struct clk * clk, unsigned long rate)
 	 * Reprogramming the DPLL is tricky, it must be done from SRAM.
 	 * (on 730, bit 13 must always be 1)
 	 */
-	if (cpu_is_omap730())
+	if (cpu_is_omap7xx())
 		omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val | 0x2000);
 	else
 		omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val);
@@ -783,7 +783,7 @@ int __init omap1_clk_init(void)
 		cpu_mask |= CK_16XX;
 	if (cpu_is_omap1510())
 		cpu_mask |= CK_1510;
-	if (cpu_is_omap730())
+	if (cpu_is_omap7xx())
 		cpu_mask |= CK_730;
 	if (cpu_is_omap310())
 		cpu_mask |= CK_310;
@@ -800,7 +800,7 @@ int __init omap1_clk_init(void)
 			crystal_type = info->system_clock_type;
 	}
 
-#if defined(CONFIG_ARCH_OMAP730)
+#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
 	ck_ref.rate = 13000000;
 #elif defined(CONFIG_ARCH_OMAP16XX)
 	if (crystal_type == 2)
@@ -847,7 +847,7 @@ int __init omap1_clk_init(void)
 		printk(KERN_ERR "System frequencies not set. Check your config.\n");
 		/* Guess sane values (60MHz) */
 		omap_writew(0x2290, DPLL_CTL);
-		omap_writew(cpu_is_omap730() ? 0x3005 : 0x1005, ARM_CKCTL);
+		omap_writew(cpu_is_omap7xx() ? 0x3005 : 0x1005, ARM_CKCTL);
 		ck_dpll1.rate = 60000000;
 	}
 #endif
@@ -873,7 +873,7 @@ int __init omap1_clk_init(void)
 
 	/* Turn off DSP and ARM_TIMXO. Make sure ARM_INTHCK is not divided */
 	/* (on 730, bit 13 must not be cleared) */
-	if (cpu_is_omap730())
+	if (cpu_is_omap7xx())
 		omap_writew(omap_readw(ARM_CKCTL) & 0x2fff, ARM_CKCTL);
 	else
 		omap_writew(omap_readw(ARM_CKCTL) & 0x0fff, ARM_CKCTL);