Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 87 insertions, 0 deletions

diff --git a/roms/u-boot/arch/arm/mach-at91/spl.c b/roms/u-boot/arch/arm/mach-at91/spl.c
new file mode 100644
index 000000000..8d537998c
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-at91/spl.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2013 Atmel Corporation
+ *		      Bo Shen <voice.shen@atmel.com>
+ */
+
+#include <common.h>
+#include <hang.h>
+#include <asm/io.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_wdt.h>
+#include <asm/arch/clk.h>
+#include <spl.h>
+
+#if !defined(CONFIG_WDT_AT91)
+void at91_disable_wdt(void)
+{
+	struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT;
+
+	writel(AT91_WDT_MR_WDDIS, &wdt->mr);
+}
+#endif
+
+#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) || \
+    defined(CONFIG_SAMA5D4)
+#include <asm/arch/sama5_boot.h>
+struct {
+	u32	r4;
+} bootrom_stash __section(".data");
+
+u32 spl_boot_device(void)
+{
+	u32 dev = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_FROM_OFF) &
+		  ATMEL_SAMA5_BOOT_FROM_MASK;
+	u32 off = (bootrom_stash.r4 >> ATMEL_SAMA5_BOOT_DEV_ID_OFF) &
+		  ATMEL_SAMA5_BOOT_DEV_ID_MASK;
+
+#if defined(CONFIG_SYS_USE_MMC) || defined(CONFIG_SD_BOOT)
+	if (dev == ATMEL_SAMA5_BOOT_FROM_MCI) {
+#if defined(CONFIG_SPL_OF_CONTROL)
+		return BOOT_DEVICE_MMC1;
+#else
+		if (off == 0)
+			return BOOT_DEVICE_MMC1;
+		if (off == 1)
+			return BOOT_DEVICE_MMC2;
+		printf("ERROR: MMC controller %i not present!\n", dev);
+		hang();
+#endif
+	}
+#endif
+
+#if defined(CONFIG_SYS_USE_SERIALFLASH) || \
+	defined(CONFIG_SYS_USE_SPIFLASH) || \
+	defined(CONFIG_SPI_BOOT)
+	if (dev == ATMEL_SAMA5_BOOT_FROM_SPI)
+		return BOOT_DEVICE_SPI;
+#endif
+	if (dev == ATMEL_SAMA5_BOOT_FROM_QSPI)
+		return BOOT_DEVICE_SPI;
+
+	if (dev == ATMEL_SAMA5_BOOT_FROM_SMC)
+		return BOOT_DEVICE_NAND;
+
+	if (dev == ATMEL_SAMA5_BOOT_FROM_SAMBA)
+		return BOOT_DEVICE_USB;
+
+	printf("ERROR: SMC/TWI/QSPI boot device not supported!\n"
+	       "       Boot device %i, controller number %i\n", dev, off);
+
+	return BOOT_DEVICE_NONE;
+}
+#else
+u32 spl_boot_device(void)
+{
+#if defined(CONFIG_SYS_USE_MMC) || defined(CONFIG_SD_BOOT)
+	return BOOT_DEVICE_MMC1;
+#elif defined(CONFIG_SYS_USE_NANDFLASH) || defined(CONFIG_NAND_BOOT)
+	return BOOT_DEVICE_NAND;
+#elif defined(CONFIG_SYS_USE_SERIALFLASH) || \
+	defined(CONFIG_SYS_USE_SPIFLASH) || \
+	defined(CONFIG_SPI_BOOT)
+	return BOOT_DEVICE_SPI;
+#endif
+	return BOOT_DEVICE_NONE;
+}
+#endif