Since sama5d3xek boards has different type of dtb blobs, so we need to detect the cpu type in runtime.
So we add a new variable $dtb_name. if $dtb_name is not defined, we just use at91-${board_name}.dtb
as the $dtb_name. Otherwise, we will just load the dtb with $dtb_name.
For sama5d3xek, we will detect cpu type and make up $dtb_name in runtime.
Signed-off-by: Josh Wu josh.wu@atmel.com ---
Changes in v2: - fix bug on tolower loop. - use setenv dtb_name instead
board/atmel/sama5d3xek/sama5d3xek.c | 20 ++++++++++++++++++++ include/configs/at91-sama5_common.h | 5 ++++- include/configs/sama5d3xek.h | 3 +++ 3 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/board/atmel/sama5d3xek/sama5d3xek.c b/board/atmel/sama5d3xek/sama5d3xek.c index cf6ed8b..8711cc6 100644 --- a/board/atmel/sama5d3xek/sama5d3xek.c +++ b/board/atmel/sama5d3xek/sama5d3xek.c @@ -15,6 +15,7 @@ #include <asm/arch/gpio.h> #include <asm/arch/clk.h> #include <lcd.h> +#include <linux/ctype.h> #include <atmel_hlcdc.h> #include <atmel_mci.h> #include <phy.h> @@ -369,6 +370,25 @@ void spi_cs_deactivate(struct spi_slave *slave) } #endif /* CONFIG_ATMEL_SPI */
+#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ +#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + const int MAX_STR_LEN = 32; + char name[MAX_STR_LEN], *p; + int i; + + strncpy(name, get_cpu_name(), MAX_STR_LEN); + for (i = 0, p = name; (*p) && (i < MAX_STR_LEN); p++, i++) + *p = tolower(*p); + + strcat(name, "ek.dtb"); + setenv("dtb_name", name); +#endif + return 0; +} +#endif + /* SPL */ #ifdef CONFIG_SPL_BUILD void spl_board_init(void) diff --git a/include/configs/at91-sama5_common.h b/include/configs/at91-sama5_common.h index bb737a1..0fe0852 100644 --- a/include/configs/at91-sama5_common.h +++ b/include/configs/at91-sama5_common.h @@ -61,7 +61,10 @@ #define FAT_ENV_FILE "uboot.env" #define CONFIG_ENV_SIZE 0x4000
-#define CONFIG_BOOTCOMMAND "fatload mmc 0:1 0x21000000 at91-${board_name}.dtb; " \ +#define CONFIG_BOOTCOMMAND "if test ! -n ${dtb_name}; then " \ + "setenv dtb_name at91-${board_name}.dtb; " \ + "fi; " \ + "fatload mmc 0:1 0x21000000 ${dtb_name}; " \ "fatload mmc 0:1 0x22000000 zImage; " \ "bootz 0x22000000 - 0x21000000" #define CONFIG_BOOTARGS \ diff --git a/include/configs/sama5d3xek.h b/include/configs/sama5d3xek.h index 5c7b722..7b2f69a 100644 --- a/include/configs/sama5d3xek.h +++ b/include/configs/sama5d3xek.h @@ -19,6 +19,9 @@ */ #include "at91-sama5_common.h"
+#define CONFIG_BOARD_LATE_INIT +#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + /* serial console */ #define CONFIG_ATMEL_USART #define CONFIG_USART_BASE ATMEL_BASE_DBGU