9 files changed, 64 insertions, 14 deletions

diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index bd5394537c88..008d51407cd7 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -115,6 +115,32 @@ static struct spi_board_info da850evm_spi_info[] = {
         },
 };
 
+#ifdef CONFIG_MTD
+static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
+{
+        char *mac_addr = davinci_soc_info.emac_pdata->mac_addr;
+        size_t retlen;
+
+        if (!strcmp(mtd->name, "MAC-Address")) {
+                mtd->read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
+                if (retlen == ETH_ALEN)
+                        pr_info("Read MAC addr from SPI Flash: %pM\n",
+                                mac_addr);
+        }
+}
+
+static struct mtd_notifier da850evm_spi_notifier = {
+        .add    = da850_evm_m25p80_notify_add,
+};
+
+static void da850_evm_setup_mac_addr(void)
+{
+        register_mtd_user(&da850evm_spi_notifier);
+}
+#else
+static void da850_evm_setup_mac_addr(void) { }
+#endif
+
 static struct mtd_partition da850_evm_norflash_partition[] = {
         {
                 .name           = "bootloaders + env",
@@ -1244,6 +1270,8 @@ static __init void da850_evm_init(void)
         if (ret)
                 pr_warning("da850_evm_init: sata registration failed: %d\n",
                                 ret);
+
+        da850_evm_setup_mac_addr();
 }
 
 #ifdef CONFIG_SERIAL_8250_CONSOLE
diff --git a/arch/arm/mach-davinci/include/mach/psc.h b/arch/arm/mach-davinci/include/mach/psc.h
index 47fd0bc3d3e7..fa59c097223d 100644
--- a/arch/arm/mach-davinci/include/mach/psc.h
+++ b/arch/arm/mach-davinci/include/mach/psc.h
@@ -243,7 +243,7 @@
 #define PSC_STATE_DISABLE       2
 #define PSC_STATE_ENABLE        3
 
-#define MDSTAT_STATE_MASK       0x1f
+#define MDSTAT_STATE_MASK       0x3f
 #define MDCTL_FORCE             BIT(31)
 
 #ifndef __ASSEMBLER__
diff --git a/arch/arm/mach-davinci/sleep.S b/arch/arm/mach-davinci/sleep.S
index fb5e72b532b0..5f1e045a3ad1 100644
--- a/arch/arm/mach-davinci/sleep.S
+++ b/arch/arm/mach-davinci/sleep.S
@@ -217,7 +217,11 @@ ddr2clk_stop_done:
 ENDPROC(davinci_ddr_psc_config)
 
 CACHE_FLUSH:
-        .word   arm926_flush_kern_cache_all
+#ifdef CONFIG_CPU_V6
+        .word   v6_flush_kern_cache_all
+#else
+        .word   arm926_flush_kern_cache_all
+#endif
 
 ENTRY(davinci_cpu_suspend_sz)
         .word   . - davinci_cpu_suspend
diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
index ffd55b1c4396..b9b844683147 100644
--- a/arch/arm/mach-omap2/clock3xxx_data.c
+++ b/arch/arm/mach-omap2/clock3xxx_data.c
@@ -3078,6 +3078,7 @@ static struct clk gpt12_fck = {
         .name           = "gpt12_fck",
         .ops            = &clkops_null,
         .parent         = &secure_32k_fck,
+        .clkdm_name     = "wkup_clkdm",
         .recalc         = &followparent_recalc,
 };
 
@@ -3085,6 +3086,7 @@ static struct clk wdt1_fck = {
         .name           = "wdt1_fck",
         .ops            = &clkops_null,
         .parent         = &secure_32k_fck,
+        .clkdm_name     = "wkup_clkdm",
         .recalc         = &followparent_recalc,
 };
 
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 2af0e3f00ce1..c0b6fbda3408 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -3376,10 +3376,18 @@ int __init omap4xxx_clk_init(void)
         } else if (cpu_is_omap446x()) {
                 cpu_mask = RATE_IN_4460;
                 cpu_clkflg = CK_446X;
+        } else {
+                return 0;
         }
 
         clk_init(&omap2_clk_functions);
-        omap2_clk_disable_clkdm_control();
+
+        /*
+         * Must stay commented until all OMAP SoC drivers are
+         * converted to runtime PM, or drivers may start crashing
+         *
+         * omap2_clk_disable_clkdm_control();
+         */
 
         for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
                                                                           c++)
diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c
index ab7db083f97f..8f0890685d7b 100644
--- a/arch/arm/mach-omap2/clockdomain.c
+++ b/arch/arm/mach-omap2/clockdomain.c
@@ -747,6 +747,7 @@ int clkdm_wakeup(struct clockdomain *clkdm)
         spin_lock_irqsave(&clkdm->lock, flags);
         clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;
         ret = arch_clkdm->clkdm_wakeup(clkdm);
+        ret |= pwrdm_state_switch(clkdm->pwrdm.ptr);
         spin_unlock_irqrestore(&clkdm->lock, flags);
         return ret;
 }
@@ -818,6 +819,7 @@ void clkdm_deny_idle(struct clockdomain *clkdm)
         spin_lock_irqsave(&clkdm->lock, flags);
         clkdm->_flags &= ~_CLKDM_FLAG_HWSUP_ENABLED;
         arch_clkdm->clkdm_deny_idle(clkdm);
+        pwrdm_state_switch(clkdm->pwrdm.ptr);
         spin_unlock_irqrestore(&clkdm->lock, flags);
 }
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index 16743c7d6e8e..408193d8e044 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -192,6 +192,7 @@ static struct omap_hwmod_addr_space omap2430_usbhsotg_addrs[] = {
                 .pa_end         = OMAP243X_HS_BASE + SZ_4K - 1,
                 .flags          = ADDR_TYPE_RT
         },
+        { }
 };
 
 /*  l4_core ->usbhsotg  interface */
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 3feb35911a32..472bf22d5e84 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -130,7 +130,6 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
                 } else {
                         hwsup = clkdm_in_hwsup(pwrdm->pwrdm_clkdms[0]);
                         clkdm_wakeup(pwrdm->pwrdm_clkdms[0]);
-                        pwrdm_wait_transition(pwrdm);
                         sleep_switch = FORCEWAKEUP_SWITCH;
                 }
         }
@@ -156,7 +155,6 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
                 return ret;
         }
 
-        pwrdm_wait_transition(pwrdm);
         pwrdm_state_switch(pwrdm);
 err:
         return ret;
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 9af08473bf10..ef71fdd40fc4 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -195,28 +195,35 @@ static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused)
 
 /**
  * pwrdm_init - set up the powerdomain layer
- * @pwrdm_list: array of struct powerdomain pointers to register
+ * @pwrdms: array of struct powerdomain pointers to register
  * @custom_funcs: func pointers for arch specific implementations
  *
- * Loop through the array of powerdomains @pwrdm_list, registering all
- * that are available on the current CPU. If pwrdm_list is supplied
- * and not null, all of the referenced powerdomains will be
- * registered.  No return value.  XXX pwrdm_list is not really a
- * "list"; it is an array.  Rename appropriately.
+ * Loop through the array of powerdomains @pwrdms, registering all
+ * that are available on the current CPU.  Also, program all
+ * powerdomain target state as ON; this is to prevent domains from
+ * hitting low power states (if bootloader has target states set to
+ * something other than ON) and potentially even losing context while
+ * PM is not fully initialized.  The PM late init code can then program
+ * the desired target state for all the power domains.  No return
+ * value.
  */
-void pwrdm_init(struct powerdomain **pwrdm_list, struct pwrdm_ops *custom_funcs)
+void pwrdm_init(struct powerdomain **pwrdms, struct pwrdm_ops *custom_funcs)
 {
         struct powerdomain **p = NULL;
+        struct powerdomain *temp_p;
 
         if (!custom_funcs)
                 WARN(1, "powerdomain: No custom pwrdm functions registered\n");
         else
                 arch_pwrdm = custom_funcs;
 
-        if (pwrdm_list) {
-                for (p = pwrdm_list; *p; p++)
+        if (pwrdms) {
+                for (p = pwrdms; *p; p++)
                         _pwrdm_register(*p);
         }
+
+        list_for_each_entry(temp_p, &pwrdm_list, node)
+                pwrdm_set_next_pwrst(temp_p, PWRDM_POWER_ON);
 }
 
 /**