ARM: OMAP: ID: Chip detection for OMAP4470

Add support for detection of the next chip in the OMAP4 family: OMAP4470 ES1.0

For more details on OMAP4470, visit:
http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12869&contentId=123362

Signed-off-by: Leonid Iziumtsev <x0153368@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 5bb4ee1..439afe7 100644 (file)
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -371,7 +371,7 @@ static void __init omap4_check_revision(void)
         * Few initial 4430 ES2.0 samples IDCODE is same as ES1.0
         * Use ARM register to detect the correct ES version
         */
-       if (!rev && (hawkeye != 0xb94e)) {
+       if (!rev && (hawkeye != 0xb94e) && (hawkeye != 0xb975)) {
                idcode = read_cpuid(CPUID_ID);
                rev = (idcode & 0xf) - 1;
        }
@@ -408,6 +408,14 @@ static void __init omap4_check_revision(void)
                        break;
                }
                break;
+       case 0xb975:
+               switch (rev) {
+               case 0:
+               default:
+                       omap_revision = OMAP4470_REV_ES1_0;
+                       break;
+               }
+               break;
        default:
                /* Unknown default to latest silicon rev as default */
                omap_revision = OMAP4430_REV_ES2_3;

diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h
index e5baa3c..34fc913 100644 (file)
--- a/arch/arm/plat-omap/include/plat/cpu.h
+++ b/arch/arm/plat-omap/include/plat/cpu.h
@@ -69,6 +69,7 @@ unsigned int omap_rev(void);
  * cpu_is_omap343x():  True for OMAP3430
  * cpu_is_omap443x():  True for OMAP4430
  * cpu_is_omap446x():  True for OMAP4460
+ * cpu_is_omap447x():  True for OMAP4470
  */
 #define GET_OMAP_CLASS (omap_rev() & 0xff)
 
@@ -120,6 +121,7 @@ IS_OMAP_SUBCLASS(343x, 0x343)
 IS_OMAP_SUBCLASS(363x, 0x363)
 IS_OMAP_SUBCLASS(443x, 0x443)
 IS_OMAP_SUBCLASS(446x, 0x446)
+IS_OMAP_SUBCLASS(447x, 0x447)
 
 IS_TI_SUBCLASS(816x, 0x816)
 IS_AM_SUBCLASS(335x, 0x335)
@@ -138,6 +140,7 @@ IS_AM_SUBCLASS(335x, 0x335)
 #define cpu_is_omap44xx()              0
 #define cpu_is_omap443x()              0
 #define cpu_is_omap446x()              0
+#define cpu_is_omap447x()              0
 
 #if defined(MULTI_OMAP1)
 # if defined(CONFIG_ARCH_OMAP730)
@@ -368,9 +371,11 @@ IS_OMAP_TYPE(3517, 0x3517)
 # undef cpu_is_omap44xx
 # undef cpu_is_omap443x
 # undef cpu_is_omap446x
+# undef cpu_is_omap447x
 # define cpu_is_omap44xx()             is_omap44xx()
 # define cpu_is_omap443x()             is_omap443x()
 # define cpu_is_omap446x()             is_omap446x()
+# define cpu_is_omap447x()             is_omap447x()
 # endif
 
 /* Macros to detect if we have OMAP1 or OMAP2 */
@@ -421,6 +426,9 @@ IS_OMAP_TYPE(3517, 0x3517)
 #define OMAP446X_CLASS         0x44600044
 #define OMAP4460_REV_ES1_0     (OMAP446X_CLASS | (0x10 << 8))
 
+#define OMAP447X_CLASS         0x44700044
+#define OMAP4470_REV_ES1_0     (OMAP447X_CLASS | (0x10 << 8))
+
 void omap2_check_revision(void);
 
 /*