[U-Boot] [PATCH 1/2] davinci: da850evm: Move BSS to SDRAM because SRAM is full

[U-Boot] [PATCH 1/2] davinci: da850evm: Move BSS to SDRAM because SRAM is full

[Adam Ford]

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>

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)
 
-- 
2.17.1

[U-Boot] [PATCH 2/2] ARM: davinci: da850evm: Enable SPL_OF_CONTROL without PLATDATA

[Adam Ford]

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>

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 at 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..e3309cfe44 100644
--- a/configs/da850evm_nand_defconfig
+++ b/configs/da850evm_nand_defconfig
@@ -44,6 +44,7 @@ CONFIG_SPL_DM=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
-- 
2.17.1