[U-Boot] [PATCH V2 1/2] davinci: da850evm: Move BSS to SDRAM because SRAM is full
In order to fully support SPL_OF_CONTROL, we need BSS to be a bit larger. This patch relocates BSS to SDRAM instead of SRAM which is similar to how ARMv7 boards (like OMAP2+) do it.
This means two new variables are required: CONFIG_SPL_BSS_START_ADDR set to DAVINCI_DDR_EMIF_DATA_BASE CONFIG_SPL_BSS_MAX_SIZE is set to 0x1080000 which is 1 byte before the location where U-Boot will load.
Signed-off-by: Adam Ford aford173@gmail.com --- V2: No Change
diff --git a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds index 7b5fab7756..8f04911306 100644 --- a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds +++ b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds @@ -10,6 +10,9 @@ MEMORY { .sram : ORIGIN = IMAGE_TEXT_BASE,\ LENGTH = CONFIG_SPL_MAX_FOOTPRINT }
+MEMORY { .sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \ + LENGTH = CONFIG_SPL_BSS_MAX_SIZE } + OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") OUTPUT_ARCH(arm) ENTRY(_start) @@ -42,6 +45,15 @@ SECTIONS __rel_dyn_end = .; } >.sram
+ __image_copy_end = .; + + .end : + { + *(.__end) + } + + _image_binary_end = .; + .bss : { . = ALIGN(4); @@ -49,12 +61,5 @@ SECTIONS *(.bss*) . = ALIGN(4); __bss_end = .; - } >.sram - - __image_copy_end = .; - - .end : - { - *(.__end) - } + } >.sdram } diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h index 14a3046f19..bb549e363a 100644 --- a/include/configs/da850evm.h +++ b/include/configs/da850evm.h @@ -48,7 +48,8 @@ #define PHYS_SDRAM_1 DAVINCI_DDR_EMIF_DATA_BASE /* DDR Start */ #define PHYS_SDRAM_1_SIZE (64 << 20) /* SDRAM size 64MB */ #define CONFIG_MAX_RAM_BANK_SIZE (512 << 20) /* max size from SPRS586*/ - +#define CONFIG_SPL_BSS_START_ADDR DAVINCI_DDR_EMIF_DATA_BASE +#define CONFIG_SPL_BSS_MAX_SIZE 0x1080000 /* memtest start addr */ #define CONFIG_SYS_MEMTEST_START (PHYS_SDRAM_1 + 0x2000000)
With the memory mapping giving us some more avialable RAM, this updates the da850-evm-u-boot.dtsi to include the serial port, SPI and Flash nodes along with some dependent nodes in the SPL dtb. This also removes the platform data initialization code for the serial port and SPI Flash.
Signed-off-by: Adam Ford aford173@gmail.com --- V2: Add da850evm_nand_defconfig to build with DT as well
diff --git a/arch/arm/dts/da850-evm-u-boot.dtsi b/arch/arm/dts/da850-evm-u-boot.dtsi index ab1de77954..ab9368b9d3 100644 --- a/arch/arm/dts/da850-evm-u-boot.dtsi +++ b/arch/arm/dts/da850-evm-u-boot.dtsi @@ -6,6 +6,24 @@ * Copyright (C) Adam Ford */
+/ { + soc@1c00000 { + u-boot,dm-spl; + }; +}; + &flash { compatible = "m25p64", "spi-flash"; }; + +&mmc0 { + u-boot,dm-spl; +}; + +&serial2 { + u-boot,dm-spl; +}; + +&spi1 { + u-boot,dm-spl; +}; diff --git a/board/davinci/da8xxevm/da850evm.c b/board/davinci/da8xxevm/da850evm.c index b0b29b3887..e8ec553f99 100644 --- a/board/davinci/da8xxevm/da850evm.c +++ b/board/davinci/da8xxevm/da850evm.c @@ -49,33 +49,6 @@ DECLARE_GLOBAL_DATA_PTR;
#define CFG_MAC_ADDR_OFFSET (flash->size - SZ_64K)
-#ifdef CONFIG_SPL_BUILD -#include <ns16550.h> -#include <dm/platform_data/spi_davinci.h> - -static const struct ns16550_platdata da850evm_serial = { - .base = DAVINCI_UART2_BASE, - .reg_shift = 2, - .clock = 150000000, - .fcr = UART_FCR_DEFVAL, -}; - -U_BOOT_DEVICE(da850evm_uart) = { - .name = "ns16550_serial", - .platdata = &da850evm_serial, -}; - -static const struct davinci_spi_platdata davinci_spi_data = { - .regs = (struct davinci_spi_regs *)0x01f0e000, - .num_cs = 4, -}; - -U_BOOT_DEVICE(davinci_spi) = { - .name = "davinci_spi", - .platdata = &davinci_spi_data, -}; -#endif - #ifdef CONFIG_MAC_ADDR_IN_SPIFLASH static int get_mac_addr(u8 *addr) { diff --git a/configs/da850evm_defconfig b/configs/da850evm_defconfig index 41dae05fb9..4b09ba10a6 100644 --- a/configs/da850evm_defconfig +++ b/configs/da850evm_defconfig @@ -1,4 +1,5 @@ CONFIG_ARM=y +CONFIG_SYS_THUMB_BUILD=y CONFIG_ARCH_DAVINCI=y CONFIG_SYS_TEXT_BASE=0xc1080000 CONFIG_TARGET_DA850EVM=y @@ -13,6 +14,7 @@ CONFIG_SPL_SPI_SUPPORT=y CONFIG_NR_DRAM_BANKS=1 CONFIG_SYS_EXTRA_OPTIONS="MAC_ADDR_IN_SPIFLASH" CONFIG_BOOTDELAY=3 +CONFIG_DEFAULT_FDT_FILE="da850-evm.dtb" CONFIG_MISC_INIT_R=y CONFIG_VERSION_VARIABLE=y # CONFIG_DISPLAY_CPUINFO is not set @@ -20,6 +22,7 @@ CONFIG_VERSION_VARIABLE=y CONFIG_BOARD_EARLY_INIT_F=y CONFIG_SPL_BOARD_INIT=y CONFIG_SPL_SYS_MALLOC_SIMPLE=y +CONFIG_SPL_SEPARATE_BSS=y CONFIG_SPL_SPI_LOAD=y CONFIG_HUSH_PARSER=y CONFIG_SYS_PROMPT="U-Boot > " @@ -39,10 +42,11 @@ CONFIG_CMD_DIAG=y CONFIG_OF_CONTROL=y CONFIG_SPL_OF_CONTROL=y CONFIG_DEFAULT_DEVICE_TREE="da850-evm" -CONFIG_SPL_OF_PLATDATA=y CONFIG_ENV_IS_IN_SPI_FLASH=y CONFIG_DM=y CONFIG_SPL_DM=y +CONFIG_SPL_DM_SEQ_ALIAS=y +CONFIG_SPL_OF_TRANSLATE=y CONFIG_DM_GPIO=y CONFIG_DA8XX_GPIO=y CONFIG_DM_I2C=y diff --git a/configs/da850evm_nand_defconfig b/configs/da850evm_nand_defconfig index 48b7c2a97a..af5ba813c2 100644 --- a/configs/da850evm_nand_defconfig +++ b/configs/da850evm_nand_defconfig @@ -1,4 +1,5 @@ CONFIG_ARM=y +CONFIG_SYS_THUMB_BUILD=y CONFIG_ARCH_DAVINCI=y CONFIG_SYS_TEXT_BASE=0xc1080000 CONFIG_TARGET_DA850EVM=y @@ -12,12 +13,14 @@ CONFIG_SPL_SPI_FLASH_SUPPORT=y CONFIG_SPL_SPI_SUPPORT=y CONFIG_SYS_EXTRA_OPTIONS="MAC_ADDR_IN_SPIFLASH" CONFIG_BOOTDELAY=3 +CONFIG_DEFAULT_FDT_FILE="da850-evm.dtb" CONFIG_VERSION_VARIABLE=y # CONFIG_DISPLAY_CPUINFO is not set # CONFIG_DISPLAY_BOARDINFO is not set CONFIG_BOARD_EARLY_INIT_F=y CONFIG_SPL_BOARD_INIT=y CONFIG_SPL_SYS_MALLOC_SIMPLE=y +CONFIG_SPL_SEPARATE_BSS=y CONFIG_SPL_NAND_SUPPORT=y CONFIG_SPL_SPI_LOAD=y CONFIG_HUSH_PARSER=y @@ -37,13 +40,15 @@ CONFIG_CMD_DIAG=y CONFIG_OF_CONTROL=y CONFIG_SPL_OF_CONTROL=y CONFIG_DEFAULT_DEVICE_TREE="da850-evm" -CONFIG_SPL_OF_PLATDATA=y CONFIG_ENV_IS_IN_NAND=y CONFIG_DM=y CONFIG_SPL_DM=y +CONFIG_SPL_DM_SEQ_ALIAS=y +CONFIG_SPL_OF_TRANSLATE=y CONFIG_DM_GPIO=y CONFIG_DA8XX_GPIO=y CONFIG_DM_I2C=y +CONFIG_DM_MMC=y CONFIG_NAND=y CONFIG_NAND_DAVINCI=y CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
On Fri, Feb 15, 2019 at 05:39:21PM -0600, Adam Ford wrote:
In order to fully support SPL_OF_CONTROL, we need BSS to be a bit larger. This patch relocates BSS to SDRAM instead of SRAM which is similar to how ARMv7 boards (like OMAP2+) do it.
This means two new variables are required: CONFIG_SPL_BSS_START_ADDR set to DAVINCI_DDR_EMIF_DATA_BASE CONFIG_SPL_BSS_MAX_SIZE is set to 0x1080000 which is 1 byte before the location where U-Boot will load.
Signed-off-by: Adam Ford aford173@gmail.com
This breaks building of omapl138_lcdk, please fix, thanks!
participants (2)
-
Adam Ford -
Tom Rini