board: da8xxevm: Add SPL DM for serial, spi

This patch add SPL DM support for da8xxevm boards
with SPL serial, SPI drivers supported via platdata.

Cc: Adam Ford <aford173@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Adam Ford <aford173@gmail.com> #da850evm

board/davinci/da8xxevm/da850evm.c

@@ -49,6 +49,33 @@ 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)
 {

configs/da850_am18xxevm_defconfig

@@ -8,6 +8,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL=y
+CONFIG_SPL_DM=y
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
 CONFIG_SPL_SPI_SUPPORT=y
 CONFIG_NR_DRAM_BANKS=1
@@ -35,6 +36,8 @@ CONFIG_CRC32_VERIFY=y
 CONFIG_CMD_DIAG=y
 CONFIG_OF_CONTROL=y
 CONFIG_DEFAULT_DEVICE_TREE="da850-evm"
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_SPL_OF_PLATDATA=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_DM=y
 CONFIG_DA8XX_GPIO=y

configs/da850evm_defconfig

@@ -7,6 +7,7 @@ CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL=y
+CONFIG_SPL_DM=y
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
 CONFIG_SPL_SPI_SUPPORT=y
 CONFIG_NR_DRAM_BANKS=1
@@ -37,6 +38,8 @@ CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=spi0.0:512k(u-boot.ais),64k(u-boot-env),7552k(kernel-spare),64k(MAC-Address)"
 CONFIG_CMD_DIAG=y
 CONFIG_OF_CONTROL=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_SPL_OF_PLATDATA=y
 CONFIG_DEFAULT_DEVICE_TREE="da850-evm"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_DM=y

include/configs/da850evm.h

@@ -23,8 +23,6 @@
 * DM support in SPL
 */
 #ifdef CONFIG_SPL_BUILD
-#undef CONFIG_DM_SPI
-#undef CONFIG_DM_SPI_FLASH
 #undef CONFIG_DM_I2C
 #undef CONFIG_DM_I2C_COMPAT
 #endif
@@ -118,7 +116,6 @@
 
 #if !CONFIG_IS_ENABLED(DM_SERIAL)
 #define CONFIG_SYS_NS16550_SERIAL
-#define CONFIG_SYS_NS16550_REG_SIZE	-4	/* NS16550 register size */
 #define CONFIG_SYS_NS16550_COM1	DAVINCI_UART2_BASE /* Base address of UART2 */
 #endif
 #define CONFIG_SYS_NS16550_CLK	clk_get(DAVINCI_UART2_CLKID)