Merge tag 'arc-fixes-for-2019.04-rc1' of git://git.denx.de/u-boot-arc

A couple of trivial fixes and improvements for ARC

Most notable are:
 * Move of ENV_SIZE/ENV_OFFSET to Kconfig
 * Fix with private structure allocation for arc_uart
 * Definition of CONFIG_SYS_CACHELINE_SIZE useful for building drivers

arch/arc/include/asm/cache.h

@@ -16,6 +16,9 @@
  */
 #define ARCH_DMA_MINALIGN	128
 
+/* CONFIG_SYS_CACHELINE_SIZE is used a lot in drivers */
+#define CONFIG_SYS_CACHELINE_SIZE	ARCH_DMA_MINALIGN
+
 #if defined(ARC_MMU_ABSENT)
 #define CONFIG_ARC_MMU_VER 0
 #elif defined(CONFIG_ARC_MMU_V2)

arch/arc/lib/cpu.c

@@ -87,7 +87,7 @@ const char *arc_em_version(int arcver, char *name, int name_len)
 	bool xymem = ARC_FEATURE_EXISTS(ARC_AUX_XY_BUILD);
 	int i;
 
-	for (i = 0; i++ < sizeof(em_versions) / sizeof(struct em_template_t);) {
+	for (i = 0; i < sizeof(em_versions) / sizeof(struct em_template_t); i++) {
 		if (em_versions[i].cache == cache &&
 		    em_versions[i].dsp == dsp &&
 		    em_versions[i].xymem == xymem) {
@@ -147,7 +147,7 @@ const char *arc_hs_version(int arcver, char *name, int name_len)
 	bool dual_issue = arcver == 0x54 ? true : false;
 	int i;
 
-	for (i = 0; i++ < sizeof(hs_versions) / sizeof(struct hs_template_t);) {
+	for (i = 0; i < sizeof(hs_versions) / sizeof(struct hs_template_t); i++) {
 		if (hs_versions[i].cache == cache &&
 		    hs_versions[i].mmu == mmu &&
 		    hs_versions[i].dual_issue == dual_issue &&

configs/emsdp_defconfig

@@ -3,6 +3,7 @@ CONFIG_ISA_ARCV2=y
 CONFIG_CPU_ARCEM6=y
 CONFIG_TARGET_EMSDP=y
 CONFIG_SYS_TEXT_BASE=0x00000000
+CONFIG_ENV_SIZE=0x1000
 CONFIG_SYS_CLK_FREQ=40000000
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_VERSION_VARIABLE=y

configs/iot_devkit_defconfig

@@ -5,6 +5,7 @@ CONFIG_SYS_ICACHE_OFF=y
 CONFIG_SYS_DCACHE_OFF=y
 CONFIG_TARGET_IOT_DEVKIT=y
 CONFIG_SYS_TEXT_BASE=0x00000000
+CONFIG_ENV_SIZE=0x1000
 CONFIG_SYS_CLK_FREQ=16000000
 CONFIG_LOCALVERSION="-iotdk-1.0"
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set

configs/tb100_defconfig

@@ -1,6 +1,7 @@
 CONFIG_ARC=y
 CONFIG_TARGET_TB100=y
 CONFIG_SYS_TEXT_BASE=0x84000000
+CONFIG_ENV_SIZE=0x800
 CONFIG_SYS_CLK_FREQ=500000000
 CONFIG_BOOTDELAY=3
 CONFIG_USE_BOOTARGS=y

drivers/serial/serial_arc.c

@@ -126,6 +126,7 @@ U_BOOT_DRIVER(serial_arc) = {
 	.id	= UCLASS_SERIAL,
 	.of_match = arc_serial_ids,
 	.ofdata_to_platdata = arc_serial_ofdata_to_platdata,
+	.platdata_auto_alloc_size = sizeof(struct arc_serial_platdata),
 	.probe = arc_serial_probe,
 	.ops	= &arc_serial_ops,
 };

env/Kconfig

@@ -431,7 +431,7 @@ config ENV_EXT4_FILE
 	  It's a string of the EXT4 file name. This file use to store the
 	  environment (explicit path to the file)
 
-if ARCH_ROCKCHIP || ARCH_SUNXI || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL
+if ARCH_ROCKCHIP || ARCH_SUNXI || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_VERSAL || ARC
 
 config ENV_OFFSET
 	hex "Environment Offset"
@@ -441,6 +441,7 @@ config ENV_OFFSET
 	default 0x88000 if ARCH_SUNXI
 	default 0xE0000 if ARCH_ZYNQ
 	default 0x1E00000 if ARCH_ZYNQMP
+	default 0 if ARC
 	help
 	  Offset from the start of the device (or partition)
 
@@ -449,6 +450,7 @@ config ENV_SIZE
 	default 0x40000 if ENV_IS_IN_SPI_FLASH && ARCH_ZYNQMP
 	default 0x20000 if ARCH_SUNXI || ARCH_ZYNQ
 	default 0x8000 if ARCH_ROCKCHIP || ARCH_ZYNQMP || ARCH_VERSAL
+	default 0x4000 if ARC
 	help
 	  Size of the environment storage area
 

include/configs/axs10x.h

@@ -45,7 +45,6 @@
 /*
  * UART configuration
  */
-#define CONFIG_DW_SERIAL
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_CLK		33333333
 #define CONFIG_SYS_NS16550_MEM32
@@ -63,7 +62,6 @@
 /*
  * Environment settings
  */
-#define CONFIG_ENV_SIZE			SZ_16K
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"upgrade=if mmc rescan && " \
 		"fatload mmc 0:1 ${loadaddr} u-boot-update.img && " \

include/configs/emsdp.h

@@ -21,7 +21,6 @@
 /*
  * Environment
  */
-#define CONFIG_ENV_SIZE			SZ_4K
 #define CONFIG_BOOTFILE			"app.bin"
 #define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
 

include/configs/hsdk.h

@@ -40,7 +40,6 @@
 /*
  * UART configuration
  */
-#define CONFIG_DW_SERIAL
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_CLK		33330000
 #define CONFIG_SYS_NS16550_MEM32
@@ -58,8 +57,6 @@
 /*
  * Environment settings
  */
-#define CONFIG_ENV_SIZE			SZ_16K
-
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"upgrade=if mmc rescan && " \
 		"fatload mmc 0:1 ${loadaddr} u-boot-update.scr && " \

include/configs/iot_devkit.h

@@ -74,7 +74,6 @@
 /*
  * Environment
  */
-#define CONFIG_ENV_SIZE			SZ_4K
 #define CONFIG_BOOTFILE			"app.bin"
 #define CONFIG_LOADADDR			CONFIG_SYS_LOAD_ADDR
 

include/configs/nsim.h

@@ -24,12 +24,6 @@
 #define CONFIG_SYS_BOOTM_LEN		SZ_32M
 #define CONFIG_SYS_LOAD_ADDR		0x82000000
 
-/*
- * Environment settings
- */
-#define CONFIG_ENV_SIZE			SZ_512
-#define CONFIG_ENV_OFFSET		0
-
 /*
  * Environment configuration
  */

include/configs/tb100.h

@@ -52,12 +52,6 @@
  * Command line configuration
  */
 
-/*
- * Environment settings
- */
-#define CONFIG_ENV_SIZE			SZ_2K
-#define CONFIG_ENV_OFFSET		0
-
 /*
  * Environment configuration
  */

scripts/config_whitelist.txt

@@ -426,7 +426,6 @@ CONFIG_DW_ALTDESCRIPTOR
 CONFIG_DW_AXI_BURST_LEN
 CONFIG_DW_GMAC_DEFAULT_DMA_PBL
 CONFIG_DW_MAC_FORCE_THRESHOLD_MODE
-CONFIG_DW_SERIAL
 CONFIG_DW_UDC
 CONFIG_DW_WDT_BASE
 CONFIG_DW_WDT_CLOCK_KHZ