Merge tag 'omap-for-v4.3/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "Fixes for omaps for v4.3-rc cycle" from Tony Lindgren:

- Fix oops with LPAE and moew than 2GB of memory by enabling
  ZONE_DMA for LPAE. Probably no need for stable on this one as we
  only recently ran into this with the mainline kernel

- Fix imprecise external abort caused by bogus SRAM init. This affects
  dm814x recently merged, so no need for stable on this one AFAIK

* tag 'omap-for-v4.3/fixes-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix imprecise external abort caused by bogus SRAM init
  ARM: OMAP2+: Fix oops with LPAE and more than 2GB of memory

5 files changed, 22 insertions, 3 deletions

diff --git a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
index 91146c318798..5b0430041ec6 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-37xx-devkit.dts
@@ -12,7 +12,7 @@
 
 / {
         model = "LogicPD Zoom DM3730 Torpedo Development Kit";
-        compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap36xx";
+        compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3630", "ti,omap3";
 
         gpio_keys {
                 compatible = "gpio-keys";
diff --git a/arch/arm/boot/dts/omap3-evm-37xx.dts b/arch/arm/boot/dts/omap3-evm-37xx.dts
index 16e8ce350dda..bb339d1648e0 100644
--- a/arch/arm/boot/dts/omap3-evm-37xx.dts
+++ b/arch/arm/boot/dts/omap3-evm-37xx.dts
@@ -13,7 +13,7 @@
 
 / {
         model = "TI OMAP37XX EVM (TMDSEVM3730)";
-        compatible = "ti,omap3-evm-37xx", "ti,omap36xx";
+        compatible = "ti,omap3-evm-37xx", "ti,omap3630", "ti,omap3";
 
         memory {
                 device_type = "memory";
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index b3a0dff67e3f..33d1460a5639 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -49,6 +49,7 @@ config SOC_OMAP5
         select OMAP_INTERCONNECT
         select OMAP_INTERCONNECT_BARRIER
         select PM_OPP if PM
+        select ZONE_DMA if ARM_LPAE
 
 config SOC_AM33XX
         bool "TI AM33XX"
@@ -78,6 +79,7 @@ config SOC_DRA7XX
         select OMAP_INTERCONNECT
         select OMAP_INTERCONNECT_BARRIER
         select PM_OPP if PM
+        select ZONE_DMA if ARM_LPAE
 
 config ARCH_OMAP2PLUS
         bool
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 6133eaac685d..fb219a30c10c 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -106,6 +106,7 @@ DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
 MACHINE_END
 
 static const char *const omap36xx_boards_compat[] __initconst = {
+        "ti,omap3630",
         "ti,omap36xx",
         NULL,
 };
@@ -243,6 +244,9 @@ static const char *const omap5_boards_compat[] __initconst = {
 };
 
 DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+        .dma_zone_size  = SZ_2G,
+#endif
         .reserve        = omap_reserve,
         .smp            = smp_ops(omap4_smp_ops),
         .map_io         = omap5_map_io,
@@ -288,6 +292,9 @@ static const char *const dra74x_boards_compat[] __initconst = {
 };
 
 DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+        .dma_zone_size  = SZ_2G,
+#endif
         .reserve        = omap_reserve,
         .smp            = smp_ops(omap4_smp_ops),
         .map_io         = dra7xx_map_io,
@@ -308,6 +315,9 @@ static const char *const dra72x_boards_compat[] __initconst = {
 };
 
 DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)")
+#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
+        .dma_zone_size  = SZ_2G,
+#endif
         .reserve        = omap_reserve,
         .map_io         = dra7xx_map_io,
         .init_early     = dra7xx_init_early,
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index ea56397599c2..1dfe34654c43 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -559,7 +559,14 @@ static void pdata_quirks_check(struct pdata_init *quirks)
 
 void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table)
 {
-        omap_sdrc_init(NULL, NULL);
+        /*
+         * We still need this for omap2420 and omap3 PM to work, others are
+         * using drivers/misc/sram.c already.
+         */
+        if (of_machine_is_compatible("ti,omap2420") ||
+            of_machine_is_compatible("ti,omap3"))
+                omap_sdrc_init(NULL, NULL);
+
         pdata_quirks_check(auxdata_quirks);
         of_platform_populate(NULL, omap_dt_match_table,
                              omap_auxdata_lookup, NULL);