Merge branch 'master' of git://www.denx.de/git/u-boot-avr32

board/atmel/atngw100/atngw100.c

@@ -23,6 +23,7 @@
 
 #include <asm/io.h>
 #include <asm/sdram.h>
+#include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/hmatrix2.h>
 
@@ -40,6 +41,8 @@ static const struct sdram_info sdram = {
 	.trcd		= 2,
 	.tras		= 5,
 	.txsr		= 5,
+	/* 7.81 us */
+	.refresh_period	= (781 * (SDRAMC_BUS_HZ / 1000)) / 100000,
 };
 
 int board_early_init_f(void)

board/atmel/atstk1000/atstk1000.c

@@ -23,6 +23,7 @@
 
 #include <asm/io.h>
 #include <asm/sdram.h>
+#include <asm/arch/clk.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/hmatrix2.h>
 
@@ -40,6 +41,8 @@ static const struct sdram_info sdram = {
 	.trcd		= 2,
 	.tras		= 5,
 	.txsr		= 5,
+	/* 15.6 us */
+	.refresh_period	= (156 * (SDRAMC_BUS_HZ / 1000)) / 10000,
 };
 
 int board_early_init_f(void)

board/atmel/atstk1000/flash.c

@@ -159,7 +159,7 @@ int __flashprog write_buff(flash_info_t *info, uchar *src,
 {
 	unsigned long flags;
 	uint16_t *base, *p, *s, *end;
-	uint16_t word, status;
+	uint16_t word, status, status1;
 	int ret = ERR_OK;
 
 	if (addr < info->start[0]
@@ -194,20 +194,33 @@ int __flashprog write_buff(flash_info_t *info, uchar *src,
 		sync_write_buffer();
 
 		/* Wait for completion */
+		status1 = readw(p);
 		do {
 			/* TODO: Timeout */
-			status = readw(p);
+			status = status1;
-		} while ((status != word) && !(status & 0x28));
+			status1 = readw(p);
+		} while (((status ^ status1) & 0x40)	/* toggled */
+			 && !(status1 & 0x28));		/* error bits */
+
+		/*
+		 * We'll need to check once again for toggle bit
+		 * because the toggle bit may stop toggling as I/O5
+		 * changes to "1" (ref at49bv642.pdf p9)
+		 */
+		status1 = readw(p);
+		status = readw(p);
+		if ((status ^ status1) & 0x40) {
+			printf("Flash write error at address 0x%p: "
+			       "0x%02x != 0x%02x\n",
+			       p, status,word);
+			ret = ERR_PROG_ERROR;
+			writew(0xf0, base);
+			readw(base);
+			break;
+		}
 
 		writew(0xf0, base);
 		readw(base);
-
-		if (status != word) {
-			printf("Flash write error at address 0x%p: 0x%02x\n",
-			       p, status);
-			ret = ERR_PROG_ERROR;
-			break;
-		}
 	}
 
 	if (flags)

cpu/at32ap/hsdramc.c

@@ -38,6 +38,10 @@ unsigned long sdram_init(const struct sdram_info *info)
 	unsigned long bus_hz;
 	unsigned int i;
 
+	if (!info->refresh_period)
+		panic("ERROR: SDRAM refresh period == 0. "
+				"Please update the board code\n");
+
 	tmp = (HSDRAMC1_BF(NC, info->col_bits - 8)
 	       | HSDRAMC1_BF(NR, info->row_bits - 11)
 	       | HSDRAMC1_BF(NB, info->bank_bits - 1)
@@ -113,7 +117,7 @@ unsigned long sdram_init(const struct sdram_info *info)
 	 * 15.6 us is a typical value for a burst of length one
 	 */
 	bus_hz = get_sdram_clk_rate();
-	hsdramc1_writel(TR, (156 * (bus_hz / 1000)) / 10000);
+	hsdramc1_writel(TR, info->refresh_period);
 
 	printf("SDRAM: %u MB at address 0x%08lx\n",
 	       sdram_size >> 20, info->phys_addr);

include/asm-avr32/arch-at32ap700x/clk.h

@@ -75,4 +75,7 @@ static inline unsigned long get_mci_clk_rate(void)
 }
 #endif
 
+/* Board code may need the SDRAM base clock as a compile-time constant */
+#define SDRAMC_BUS_HZ	(MAIN_CLK_RATE >> CFG_CLKDIV_HSB)
+
 #endif /* __ASM_AVR32_ARCH_CLK_H__ */

include/asm-avr32/sdram.h

@@ -26,6 +26,9 @@ struct sdram_info {
 	unsigned long phys_addr;
 	unsigned int row_bits, col_bits, bank_bits;
 	unsigned int cas, twr, trc, trp, trcd, tras, txsr;
+
+	/* SDRAM refresh period in cycles */
+	unsigned long refresh_period;
 };
 
 extern unsigned long sdram_init(const struct sdram_info *info);

include/configs/atngw100.h

@@ -170,13 +170,9 @@
 #define CFG_PBSIZE			(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
 #define CFG_LONGHELP			1
 
-#define CFG_MEMTEST_START						\
+#define CFG_MEMTEST_START		CFG_SDRAM_BASE
-	({ DECLARE_GLOBAL_DATA_PTR; gd->bd->bi_dram[0].start; })
+#define CFG_MEMTEST_END			(CFG_MEMTEST_START + 0x1f00000)
-#define CFG_MEMTEST_END							\
+
-	({								\
-		DECLARE_GLOBAL_DATA_PTR;				\
-		gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;	\
-	})
 #define CFG_BAUDRATE_TABLE { 115200, 38400, 19200, 9600, 2400 }
 
 #endif /* __CONFIG_H */

include/configs/atstk1002.h

@@ -184,8 +184,8 @@
 #define CFG_MALLOC_LEN			(256*1024)
 #define CFG_DMA_ALLOC_LEN		(16384)
 
-/* Allow 2MB for the kernel run-time image */
+/* Allow 4MB for the kernel run-time image */
-#define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00200000)
+#define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00400000)
 #define CFG_BOOTPARAMS_LEN		(16 * 1024)
 
 /* Other configuration settings that shouldn't have to change all that often */

include/configs/atstk1004.h

@@ -167,7 +167,7 @@
 
 #define CFG_MALLOC_LEN			(256*1024)
 
-/* Allow 4MB for the kernel run-time image */
+/* Allow 2MB for the kernel run-time image */
 #define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00200000)
 #define CFG_BOOTPARAMS_LEN		(16 * 1024)