/*
- * Copyright (C) 2014-2015 Stefan Roese <sr@denx.de>
+ * Copyright (C) 2014-2016 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
DECLARE_GLOBAL_DATA_PTR;
-u32 spl_boot_device(void)
+static u32 get_boot_device(void)
{
-#if defined(CONFIG_SPL_SPI_FLASH_SUPPORT)
- return BOOT_DEVICE_SPI;
-#endif
-#if defined(CONFIG_SPL_MMC_SUPPORT)
- return BOOT_DEVICE_MMC1;
+ u32 val;
+ u32 boot_device;
+
+ /*
+ * First check, if UART boot-mode is active. This can only
+ * be done, via the bootrom error register. Here the
+ * MSB marks if the UART mode is active.
+ */
+ val = readl(CONFIG_BOOTROM_ERR_REG);
+ boot_device = (val & BOOTROM_ERR_MODE_MASK) >> BOOTROM_ERR_MODE_OFFS;
+ debug("BOOTROM_REG=0x%08x boot_device=0x%x\n", val, boot_device);
+ if (boot_device == BOOTROM_ERR_MODE_UART)
+ return BOOT_DEVICE_UART;
+
+ /*
+ * Now check the SAR register for the strapped boot-device
+ */
+ val = readl(CONFIG_SAR_REG); /* SAR - Sample At Reset */
+ boot_device = (val & BOOT_DEV_SEL_MASK) >> BOOT_DEV_SEL_OFFS;
+ debug("SAR_REG=0x%08x boot_device=0x%x\n", val, boot_device);
+ switch (boot_device) {
+#ifdef CONFIG_SPL_MMC_SUPPORT
+ case BOOT_FROM_MMC:
+ case BOOT_FROM_MMC_ALT:
+ return BOOT_DEVICE_MMC1;
#endif
+ case BOOT_FROM_UART:
+ return BOOT_DEVICE_UART;
+ case BOOT_FROM_SPI:
+ default:
+ return BOOT_DEVICE_SPI;
+ };
+}
+
+u32 spl_boot_device(void)
+{
+ return get_boot_device();
}
#ifdef CONFIG_SPL_MMC_SUPPORT
{
int ret;
-#ifndef CONFIG_MVEBU_BOOTROM_UARTBOOT
- /*
- * Only call arch_cpu_init() when not returning to the
- * Marvell BootROM, which is done when booting via
- * the xmodem protocol (kwboot tool). Otherwise the
- * internal register will get remapped and the BootROM
- * can't continue to run correctly.
- */
-
- /* Linux expects the internal registers to be at 0xf1000000 */
- arch_cpu_init();
-#endif
-
/*
* Pin muxing needs to be done before UART output, since
* on A38x the UART pins need some re-muxing for output
timer_init();
+ /* Armada 375 does not support SerDes and DDR3 init yet */
+#if !defined(CONFIG_ARMADA_375)
/* First init the serdes PHY's */
serdes_phy_config();
/* Setup DDR */
ddr3_init();
+#endif
-#ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT
/*
* Return to the BootROM to continue the Marvell xmodem
* UART boot protocol. As initiated by the kwboot tool.
* need to return to the BootROM to enable this xmodem
* UART download.
*/
- return_to_bootrom();
-#endif
+ if (get_boot_device() == BOOT_DEVICE_UART)
+ return_to_bootrom();
}