[U-Boot] [PATCH 1/2 V3] at91sam9261ek: make operational again

Remy Bohmer
2011-02-05T12:43:29Z

Since U-boot v2010.12 the support for the at91sam9261ek board is broken.
This patch solves this issue. This change has been tested on this board.

Note: It requires that the 1st stage bootloader (like Atmel at91-bootstrap)
to load U-boot at a different address compared to previous releases of
U-boot due to conflicts in the BSS area during relocation.
(0x23f00000 -> -0x20a00000)

Signed-off-by: Remy Bohmer <linux@bohmer.net>
---
V3: This patch applied to either mainstream or the u-boot-atmel branch
It contains all changes required to make mainstream work again for
this board.

This patch can be pulled from:
git://git.denx.de/u-boot-usb.git -> fix-at91sam9261ek

board/atmel/at91sam9261ek/Makefile | 6 +-
board/atmel/at91sam9261ek/at91sam9261ek.c | 7 +-
board/atmel/at91sam9261ek/config.mk | 1 -
include/configs/at91sam9261ek.h | 129 ++++++++++++++++------------
4 files changed, 81 insertions(+), 62 deletions(-)
delete mode 100644 board/atmel/at91sam9261ek/config.mk

diff --git a/board/atmel/at91sam9261ek/Makefile b/board/atmel/at91sam9261ek/Makefile
index 9d20ba0..3351493 100644
--- a/board/atmel/at91sam9261ek/Makefile
+++ b/board/atmel/at91sam9261ek/Makefile
@@ -29,13 +29,13 @@ include $(TOPDIR)/config.mk

LIB = $(obj)lib$(BOARD).o

-COBJS-y += at91sam9261ek.o
+COBJS-y += $(BOARD).o
COBJS-y += led.o
COBJS-$(CONFIG_HAS_DATAFLASH) += partition.o

-SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS-y))
-SOBJS := $(addprefix $(obj),$(SOBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS-y))

$(LIB): $(obj).depend $(OBJS) $(SOBJS)
$(call cmd_link_o_target, $(OBJS) $(SOBJS))
diff --git a/board/atmel/at91sam9261ek/at91sam9261ek.c b/board/atmel/at91sam9261ek/at91sam9261ek.c
index de5cfae..25c181e 100644
--- a/board/atmel/at91sam9261ek/at91sam9261ek.c
+++ b/board/atmel/at91sam9261ek/at91sam9261ek.c
@@ -246,7 +246,7 @@ int board_init(void)
gd->bd->bi_arch_number = MACH_TYPE_AT91SAM9261EK;
#endif
/* adress of boot parameters */
- gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;

at91_serial_hw_init();
#ifdef CONFIG_CMD_NAND
@@ -273,8 +273,9 @@ int board_eth_init(bd_t *bis)

int dram_init(void)
{
- gd->bd->bi_dram[0].start = PHYS_SDRAM;
- gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+ /* dram_init must store complete ramsize in gd->ram_size */
+ gd->ram_size = get_ram_size((volatile long *)CONFIG_SYS_SDRAM_BASE,
+ CONFIG_SYS_SDRAM_SIZE);
return 0;
}

diff --git a/board/atmel/at91sam9261ek/config.mk b/board/atmel/at91sam9261ek/config.mk
deleted file mode 100644
index e554a45..0000000
--- a/board/atmel/at91sam9261ek/config.mk
+++ /dev/null
@@ -1 +0,0 @@
-CONFIG_SYS_TEXT_BASE = 0x23f00000
diff --git a/include/configs/at91sam9261ek.h b/include/configs/at91sam9261ek.h
index 401478b..d601dad 100644
--- a/include/configs/at91sam9261ek.h
+++ b/include/configs/at91sam9261ek.h
@@ -29,34 +29,42 @@

#define CONFIG_AT91_LEGACY

+/*
+ * WARNING:
+ * The initial boot program needs to be adapted such that it loads U-boot
+ * at the provided TEXT_BASE below. Note that the Atmel AT91-bootstrap loader
+ * might be configured such that it loads U-boot at 0x23f00000. But since
+ * U-boot is now being relocated to the end of RAM, this will result in a
+ * lockup during boot due to an overlap in the BSS segment. So, we choose a
+ * safe load adress to begin with, namely 0x20a00000
+ */
+#define CONFIG_SYS_TEXT_BASE 0x20a00000
+
/* ARM asynchronous clock */
-#define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* 18.432 MHz crystal */
-#define CONFIG_SYS_HZ 1000
+#define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */
+#define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* main clock xtal */
+#define CONFIG_SYS_HZ 1000

#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
+/* Define actual evaluation board type from used processor type */
#ifdef CONFIG_AT91SAM9G10EK
#define CONFIG_AT91SAM9G10 1 /* It's an Atmel AT91SAM9G10 SoC*/
#else
#define CONFIG_AT91SAM9261 1 /* It's an Atmel AT91SAM9261 SoC*/
#endif
+#define CONFIG_AT91FAMILY
+
+/* Misc CPU related */
#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
-
-#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
-#define CONFIG_SETUP_MEMORY_TAGS 1
-#define CONFIG_INITRD_TAG 1
+#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG

#define CONFIG_SKIP_LOWLEVEL_INIT

-/*
- * Hardware drivers
- */
-#define CONFIG_AT91_GPIO 1
-#define CONFIG_ATMEL_USART 1
-#undef CONFIG_USART0
-#undef CONFIG_USART1
-#undef CONFIG_USART2
-#define CONFIG_USART3 1 /* USART 3 is DBGU */
+/* general purpose I/O */
+#define CONFIG_AT91_GPIO

/* LCD */
#define CONFIG_LCD 1
@@ -65,22 +73,31 @@
#undef LCD_TEST_PATTERN
#define CONFIG_LCD_INFO 1
#define CONFIG_LCD_INFO_BELOW_LOGO 1
-#define CONFIG_SYS_WHITE_ON_BLACK 1
+#define CONFIG_SYS_WHITE_ON_BLACK 1
#define CONFIG_ATMEL_LCD 1
#ifdef CONFIG_AT91SAM9261EK
#define CONFIG_ATMEL_LCD_BGR555 1
#else
-#define CONFIG_AT91SAM9G10_LCD_BASE 0x23E00000 /* LCD is no more in SRAM */
+#define CONFIG_AT91SAM9G10_LCD_BASE 0x23E00000 /* LCD is no more in SRAM */
#endif
#define CONFIG_SYS_CONSOLE_IS_IN_ENV 1

+/* serial console */
+#define CONFIG_ATMEL_USART
+#undef CONFIG_USART0
+#undef CONFIG_USART1
+#undef CONFIG_USART2
+#define CONFIG_USART3 1 /* USART 3 is DBGU */
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SYS_BAUDRATE_TABLE {115200 , 19200, 38400, 57600, 9600 }
+
/* LED */
#define CONFIG_AT91_LED
-#define CONFIG_RED_LED AT91_PIN_PA23 /* this is the power led */
-#define CONFIG_GREEN_LED AT91_PIN_PA13 /* this is the user1 led */
-#define CONFIG_YELLOW_LED AT91_PIN_PA14 /* this is the user2 led */
+#define CONFIG_RED_LED AT91_PIN_PA23 /* the power led */
+#define CONFIG_GREEN_LED AT91_PIN_PA13 /* the user1 led */
+#define CONFIG_YELLOW_LED AT91_PIN_PA14 /* the user2 led */

-#define CONFIG_BOOTDELAY 3
+#define CONFIG_BOOTDELAY 3

/*
* BOOTP options
@@ -101,21 +118,28 @@
#undef CONFIG_CMD_LOADS
#undef CONFIG_CMD_SOURCE

-#define CONFIG_CMD_PING 1
-#define CONFIG_CMD_DHCP 1
-#define CONFIG_CMD_NAND 1
-#define CONFIG_CMD_USB 1
+#define CONFIG_CMD_PING 1
+#define CONFIG_CMD_DHCP 1
+#define CONFIG_CMD_NAND 1
+#define CONFIG_CMD_USB 1
+#define CONFIG_CMD_CACHE 1

-/* SDRAM */
+/*
+ * SDRAM: 1 bank, 64 MB
+ * Initialized before u-boot gets started.
+ */
#define CONFIG_NR_DRAM_BANKS 1
-#define PHYS_SDRAM 0x20000000
-#define PHYS_SDRAM_SIZE 0x04000000 /* 64 megs */
+#define CONFIG_SYS_SDRAM_BASE 0x20000000
+#define CONFIG_SYS_SDRAM_SIZE 0x04000000 /* 64 megs */

+/* size in bytes reserved for initial data */
+#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + 0x1000 \
+ - GENERATED_GBL_DATA_SIZE)
/* DataFlash */
#define CONFIG_ATMEL_DATAFLASH_SPI
#define CONFIG_HAS_DATAFLASH 1
-#define CONFIG_SYS_SPI_WRITE_TOUT (5*CONFIG_SYS_HZ)
-#define CONFIG_SYS_MAX_DATAFLASH_BANKS 2
+#define CONFIG_SYS_SPI_WRITE_TOUT (5*CONFIG_SYS_HZ)
+#define CONFIG_SYS_MAX_DATAFLASH_BANKS 2
#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000 /* CS0 */
#define CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS3 0xD0000000 /* CS3 */
#define AT91_SPI_CLK 15000000
@@ -125,20 +149,18 @@
/* NAND flash */
#ifdef CONFIG_CMD_NAND
#define CONFIG_NAND_ATMEL
-#define CONFIG_SYS_MAX_NAND_DEVICE 1
-#define CONFIG_SYS_NAND_BASE 0x40000000
-#define CONFIG_SYS_NAND_DBW_8 1
-/* our ALE is AD22 */
-#define CONFIG_SYS_NAND_MASK_ALE (1 << 22)
-/* our CLE is AD21 */
-#define CONFIG_SYS_NAND_MASK_CLE (1 << 21)
-#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14
-#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC15
+#define CONFIG_SYS_MAX_NAND_DEVICE 1
+#define CONFIG_SYS_NAND_BASE 0x40000000
+#define CONFIG_SYS_NAND_DBW_8
+#define CONFIG_SYS_NAND_MASK_ALE (1 << 22)
+#define CONFIG_SYS_NAND_MASK_CLE (1 << 21)
+#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14
+#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC15

#endif

/* NOR flash - no real flash on this board */
-#define CONFIG_SYS_NO_FLASH 1
+#define CONFIG_SYS_NO_FLASH 1

/* Ethernet */
#define CONFIG_NET_MULTI 1
@@ -155,21 +177,21 @@
#define CONFIG_USB_ATMEL
#define CONFIG_USB_OHCI_NEW 1
#define CONFIG_DOS_PARTITION 1
-#define CONFIG_SYS_USB_OHCI_CPU_INIT 1
-#define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00500000 /* AT91SAM9261_UHP_BASE */
+#define CONFIG_SYS_USB_OHCI_CPU_INIT 1
+#define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00500000 /* AT91SAM9261_UHP_BASE */
#ifdef CONFIG_AT91SAM9G10EK
-#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9g10"
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9g10"
#else
-#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9261"
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9261"
#endif
#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2
#define CONFIG_USB_STORAGE 1
#define CONFIG_CMD_FAT 1

-#define CONFIG_SYS_LOAD_ADDR 0x22000000 /* load address */
+#define CONFIG_SYS_LOAD_ADDR 0x22000000 /* load address */

-#define CONFIG_SYS_MEMTEST_START PHYS_SDRAM
-#define CONFIG_SYS_MEMTEST_END 0x23e00000
+#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE
+#define CONFIG_SYS_MEMTEST_END 0x23e00000

#ifdef CONFIG_SYS_USE_DATAFLASH_CS0

@@ -177,7 +199,7 @@
#define CONFIG_ENV_IS_IN_DATAFLASH 1
#define CONFIG_SYS_MONITOR_BASE (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + 0x8400)
#define CONFIG_ENV_OFFSET 0x4200
-#define CONFIG_ENV_ADDR (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
+#define CONFIG_ENV_ADDR (CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS0 + CONFIG_ENV_OFFSET)
#define CONFIG_ENV_SIZE 0x4200
#define CONFIG_BOOTCOMMAND "cp.b 0xC0042000 0x22000000 0x210000; bootm"
#define CONFIG_BOOTARGS "console=ttyS0,115200 " \
@@ -202,10 +224,10 @@
#else /* CONFIG_SYS_USE_NANDFLASH */

/* bootstrap + u-boot + env + linux in nandflash */
-#define CONFIG_ENV_IS_IN_NAND 1
+#define CONFIG_ENV_IS_IN_NAND 1
#define CONFIG_ENV_OFFSET 0x60000
#define CONFIG_ENV_OFFSET_REDUND 0x80000
-#define CONFIG_ENV_SIZE 0x20000 /* 1 sector = 128 kB */
+#define CONFIG_ENV_SIZE 0x20000 /* 1 sector = 128 kB */
#define CONFIG_BOOTCOMMAND "nand read 0x22000000 0xA0000 0x200000; bootm"
#define CONFIG_BOOTARGS "console=ttyS0,115200 " \
"root=/dev/mtdblock5 " \
@@ -216,22 +238,19 @@

#endif

-#define CONFIG_BAUDRATE 115200
-#define CONFIG_SYS_BAUDRATE_TABLE {115200 , 19200, 38400, 57600, 9600 }
-
#define CONFIG_SYS_PROMPT "U-Boot> "
#define CONFIG_SYS_CBSIZE 256
#define CONFIG_SYS_MAXARGS 16
#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_LONGHELP 1
-#define CONFIG_CMDLINE_EDITING 1
+#define CONFIG_CMDLINE_EDITING 1

/*
* Size of malloc() pool
*/
#define CONFIG_SYS_MALLOC_LEN ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)

-#define CONFIG_STACKSIZE (32*1024) /* regular stack */
+#define CONFIG_STACKSIZE (32*1024) /* regular stack */

#ifdef CONFIG_USE_IRQ
#error CONFIG_USE_IRQ not supported
--
1.7.1