Merge tag 'omap-for-v3.9/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into late/omap

From Tony Lindgren:
am33xx specific updates for restart and revision detection.
Also get rid of OMAP_32K_TIMER_HZ as that no longer is needed.

* tag 'omap-for-v3.9/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2: AM33XX: id: Add support for AM335x PG2.0
  ARM: OMAP2+: Get rid of custom OMAP_32K_TIMER_HZ
  ARM: OMAP2+: AM33xx: Add SoC specific restart hook

9 files changed, 57 insertions, 20 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 67874b82a4ed..c407edb43fe4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1650,7 +1650,6 @@ config HZ
         int
         default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
                 ARCH_S5PV210 || ARCH_EXYNOS4
-        default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
         default AT91_TIMER_HZ if ARCH_AT91
         default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
         default 100
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 947cafe65aef..d1156cfa9745 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -53,6 +53,7 @@ AFLAGS_sram34xx.o			:=-Wa,-march=armv7-a
 # Restart code (OMAP4/5 currently in omap4-common.c)
 obj-$(CONFIG_SOC_OMAP2420)              += omap2-restart.o
 obj-$(CONFIG_SOC_OMAP2430)              += omap2-restart.o
+obj-$(CONFIG_SOC_AM33XX)                += am33xx-restart.o
 obj-$(CONFIG_ARCH_OMAP3)                += omap3-restart.o
 
 # Pin multiplexing
diff --git a/arch/arm/mach-omap2/am33xx-restart.c b/arch/arm/mach-omap2/am33xx-restart.c
new file mode 100644
index 000000000000..88e4fa8af031
--- /dev/null
+++ b/arch/arm/mach-omap2/am33xx-restart.c
@@ -0,0 +1,34 @@
+/*
+ * am33xx-restart.c - Code common to all AM33xx machines.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+
+#include "common.h"
+#include "prm-regbits-33xx.h"
+#include "prm33xx.h"
+
+/**
+ * am3xx_restart - trigger a software restart of the SoC
+ * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
+ * @cmd: passed from the userspace program rebooting the system (if provided)
+ *
+ * Resets the SoC.  For @cmd, see the 'reboot' syscall in
+ * kernel/sys.c.  No return value.
+ */
+void am33xx_restart(char mode, const char *cmd)
+{
+        /* TODO: Handle mode and cmd if necessary */
+
+        am33xx_prm_rmw_reg_bits(AM33XX_GLOBAL_WARM_SW_RST_MASK,
+                                AM33XX_GLOBAL_WARM_SW_RST_MASK,
+                                AM33XX_PRM_DEVICE_MOD,
+                                AM33XX_PRM_RSTCTRL_OFFSET);
+
+        /* OCP barrier */
+        (void)am33xx_prm_read_reg(AM33XX_PRM_DEVICE_MOD,
+                                  AM33XX_PRM_RSTCTRL_OFFSET);
+}
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 53cb380b7877..fac00f0960be 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -141,6 +141,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
         .init_machine   = omap_generic_init,
         .timer          = &omap3_am33xx_timer,
         .dt_compat      = am33xx_boards_compat,
+        .restart        = am33xx_restart,
 MACHINE_END
 #endif
 
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 948bcaa82eb6..0c3a991a240e 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -119,6 +119,14 @@ static inline void omap2xxx_restart(char mode, const char *cmd)
 }
 #endif
 
+#ifdef CONFIG_SOC_AM33XX
+void am33xx_restart(char mode, const char *cmd);
+#else
+static inline void am33xx_restart(char mode, const char *cmd)
+{
+}
+#endif
+
 #ifdef CONFIG_ARCH_OMAP3
 void omap3xxx_restart(char mode, const char *cmd);
 #else
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 45cc7ed4dd58..8a68f1ec66b9 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -399,8 +399,18 @@ void __init omap3xxx_check_revision(void)
                 }
                 break;
         case 0xb944:
-                omap_revision = AM335X_REV_ES1_0;
-                cpu_rev = "1.0";
+                switch (rev) {
+                case 0:
+                        omap_revision = AM335X_REV_ES1_0;
+                        cpu_rev = "1.0";
+                        break;
+                case 1:
+                /* FALLTHROUGH */
+                default:
+                        omap_revision = AM335X_REV_ES2_0;
+                        cpu_rev = "2.0";
+                        break;
+                }
                 break;
         case 0xb8f2:
                 switch (rev) {
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index f31d90774de0..15e959111e23 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -387,6 +387,7 @@ IS_OMAP_TYPE(3430, 0x3430)
 
 #define AM335X_CLASS            0x33500033
 #define AM335X_REV_ES1_0        AM335X_CLASS
+#define AM335X_REV_ES2_0        (AM335X_CLASS | (0x1 << 8))
 
 #define OMAP443X_CLASS          0x44300044
 #define OMAP4430_REV_ES1_0      (OMAP443X_CLASS | (0x10 << 8))
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 665870dce3c8..1fbac364bd4c 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -177,15 +177,6 @@ config OMAP3_L2_AUX_SECURE_SERVICE_SET_ID
         help
           PPA routine service ID for setting L2 auxiliary control register.
 
-config OMAP_32K_TIMER_HZ
-        int "Kernel internal timer frequency for 32KHz timer"
-        range 32 1024
-        depends on OMAP_32K_TIMER
-        default "128"
-        help
-          Kernel internal timer frequency should be a divisor of 32768,
-          such as 64 or 128.
-
 config OMAP_DM_TIMER
         bool "Use dual-mode timer"
         depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
diff --git a/arch/arm/plat-omap/include/plat/timex.h b/arch/arm/plat-omap/include/plat/timex.h
index 6d35767bc48f..e27d2daa7790 100644
--- a/arch/arm/plat-omap/include/plat/timex.h
+++ b/arch/arm/plat-omap/include/plat/timex.h
@@ -28,14 +28,6 @@
 #if !defined(__ASM_ARCH_OMAP_TIMEX_H)
 #define __ASM_ARCH_OMAP_TIMEX_H
 
-/*
- * OMAP 32KHz timer updates time one jiffie at a time from a secondary timer,
- * and that's why the CLOCK_TICK_RATE is not 32768.
- */
-#ifdef CONFIG_OMAP_32K_TIMER
-#define CLOCK_TICK_RATE         (CONFIG_OMAP_32K_TIMER_HZ)
-#else
 #define CLOCK_TICK_RATE         (HZ * 100000UL)
-#endif
 
 #endif /* __ASM_ARCH_OMAP_TIMEX_H */