ARM: OMAP: Add core fsample support

This patch adds core support for the TI F-Sample Board (OMAP 850).

Signed-off-by: Brian Swetland <swetland@google.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 14 insertions, 4 deletions

diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 619db18144ea..f1958e882e86 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -1,3 +1,4 @@
+//kernel/linux-omap-fsample/arch/arm/mach-omap1/clock.c#2 - edit change 3808 (text)
 /*
  *  linux/arch/arm/mach-omap1/clock.c
  *
@@ -20,6 +21,7 @@
 
 #include <asm/io.h>
 
+#include <asm/arch/cpu.h>
 #include <asm/arch/usb.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/sram.h>
@@ -270,8 +272,12 @@ static int omap1_select_table_rate(struct clk * clk, unsigned long rate)
         /*
          * In most cases we should not need to reprogram DPLL.
          * Reprogramming the DPLL is tricky, it must be done from SRAM.
+         * (on 730, bit 13 must always be 1)
          */
-        omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val);
+        if (cpu_is_omap730())
+                omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val | 0x2000);
+        else
+                omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val);
 
         ck_dpll1.rate = ptr->pll_rate;
         propagate_rate(&ck_dpll1);
@@ -748,7 +754,7 @@ 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(0x1005, ARM_CKCTL);
+                omap_writew(cpu_is_omap730() ? 0x3005 : 0x1005, ARM_CKCTL);
                 ck_dpll1.rate = 60000000;
                 propagate_rate(&ck_dpll1);
         }
@@ -761,13 +767,17 @@ int __init omap1_clk_init(void)
                ck_dpll1.rate / 1000000, (ck_dpll1.rate / 100000) % 10,
                arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);
 
-#ifdef CONFIG_MACH_OMAP_PERSEUS2
+#if defined(CONFIG_MACH_OMAP_PERSEUS2) || defined(CONFIG_MACH_OMAP_FSAMPLE)
         /* Select slicer output as OMAP input clock */
         omap_writew(omap_readw(OMAP730_PCC_UPLD_CTRL) & ~0x1, OMAP730_PCC_UPLD_CTRL);
 #endif
 
         /* Turn off DSP and ARM_TIMXO. Make sure ARM_INTHCK is not divided */
-        omap_writew(omap_readw(ARM_CKCTL) & 0x0fff, ARM_CKCTL);
+        /* (on 730, bit 13 must not be cleared) */
+        if (cpu_is_omap730())
+                omap_writew(omap_readw(ARM_CKCTL) & 0x2fff, ARM_CKCTL);
+        else
+                omap_writew(omap_readw(ARM_CKCTL) & 0x0fff, ARM_CKCTL);
 
         /* Put DSP/MPUI into reset until needed */
         omap_writew(0, ARM_RSTCT1);