1 files changed, 252 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/boot-common.c b/arch/arm/mach-omap2/boot-common.c
new file mode 100644
index 0000000..385310b
--- /dev/null
+++ b/arch/arm/mach-omap2/boot-common.c
@@ -0,0 +1,252 @@
+/*
+ * boot-common.c
+ *
+ * Common bootmode functions for omap based boards
+ *
+ * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <ahci.h>
+#include <spl.h>
+#include <asm/omap_common.h>
+#include <asm/arch/omap.h>
+#include <asm/arch/mmc_host_def.h>
+#include <asm/arch/sys_proto.h>
+#include <watchdog.h>
+#include <scsi.h>
+#include <i2c.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+__weak u32 omap_sys_boot_device(void)
+{
+	return BOOT_DEVICE_NONE;
+}
+
+void save_omap_boot_params(void)
+{
+	u32 boot_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
+	struct omap_boot_parameters *omap_boot_params;
+	int sys_boot_device = 0;
+	u32 boot_device;
+	u32 boot_mode;
+
+	if ((boot_params < NON_SECURE_SRAM_START) ||
+	    (boot_params > NON_SECURE_SRAM_END))
+		return;
+
+	omap_boot_params = (struct omap_boot_parameters *)boot_params;
+
+	boot_device = omap_boot_params->boot_device;
+	boot_mode = MMCSD_MODE_UNDEFINED;
+
+	/* Boot device */
+
+#ifdef BOOT_DEVICE_NAND_I2C
+	/*
+	 * Re-map NAND&I2C boot-device to the "normal" NAND boot-device.
+	 * Otherwise the SPL boot IF can't handle this device correctly.
+	 * Somehow booting with Hynix 4GBit NAND H27U4G8 on Siemens
+	 * Draco leads to this boot-device passed to SPL from the BootROM.
+	 */
+	if (boot_device == BOOT_DEVICE_NAND_I2C)
+		boot_device = BOOT_DEVICE_NAND;
+#endif
+#ifdef BOOT_DEVICE_QSPI_4
+	/*
+	 * We get different values for QSPI_1 and QSPI_4 being used, but
+	 * don't actually care about this difference.  Rather than
+	 * mangle the later code, if we're coming in as QSPI_4 just
+	 * change to the QSPI_1 value.
+	 */
+	if (boot_device == BOOT_DEVICE_QSPI_4)
+		boot_device = BOOT_DEVICE_SPI;
+#endif
+	/*
+	 * When booting from peripheral booting, the boot device is not usable
+	 * as-is (unless there is support for it), so the boot device is instead
+	 * figured out using the SYS_BOOT pins.
+	 */
+	switch (boot_device) {
+#if defined(BOOT_DEVICE_UART) && !defined(CONFIG_SPL_YMODEM_SUPPORT)
+		case BOOT_DEVICE_UART:
+			sys_boot_device = 1;
+			break;
+#endif
+#if defined(BOOT_DEVICE_USB) && !defined(CONFIG_SPL_USB_SUPPORT)
+		case BOOT_DEVICE_USB:
+			sys_boot_device = 1;
+			break;
+#endif
+#if defined(BOOT_DEVICE_USBETH) && !defined(CONFIG_SPL_USBETH_SUPPORT)
+		case BOOT_DEVICE_USBETH:
+			sys_boot_device = 1;
+			break;
+#endif
+#if defined(BOOT_DEVICE_CPGMAC) && !defined(CONFIG_SPL_ETH_SUPPORT)
+		case BOOT_DEVICE_CPGMAC:
+			sys_boot_device = 1;
+			break;
+#endif
+#if defined(BOOT_DEVICE_DFU) && !defined(CONFIG_SPL_DFU_SUPPORT)
+		case BOOT_DEVICE_DFU:
+			sys_boot_device = 1;
+			break;
+#endif
+	}
+
+	if (sys_boot_device) {
+		boot_device = omap_sys_boot_device();
+
+		/* MMC raw mode will fallback to FS mode. */
+		if ((boot_device >= MMC_BOOT_DEVICES_START) &&
+		    (boot_device <= MMC_BOOT_DEVICES_END))
+			boot_mode = MMCSD_MODE_RAW;
+	}
+
+	gd->arch.omap_boot_device = boot_device;
+
+	/* Boot mode */
+
+#ifdef CONFIG_OMAP34XX
+	if ((boot_device >= MMC_BOOT_DEVICES_START) &&
+	    (boot_device <= MMC_BOOT_DEVICES_END)) {
+		switch (boot_device) {
+		case BOOT_DEVICE_MMC1:
+			boot_mode = MMCSD_MODE_FS;
+			break;
+		case BOOT_DEVICE_MMC2:
+			boot_mode = MMCSD_MODE_RAW;
+			break;
+		}
+	}
+#else
+	/*
+	 * If the boot device was dynamically changed and doesn't match what
+	 * the bootrom initially booted, we cannot use the boot device
+	 * descriptor to figure out the boot mode.
+	 */
+	if ((boot_device == omap_boot_params->boot_device) &&
+	    (boot_device >= MMC_BOOT_DEVICES_START) &&
+	    (boot_device <= MMC_BOOT_DEVICES_END)) {
+		boot_params = omap_boot_params->boot_device_descriptor;
+		if ((boot_params < NON_SECURE_SRAM_START) ||
+		    (boot_params > NON_SECURE_SRAM_END))
+			return;
+
+		boot_params = *((u32 *)(boot_params + DEVICE_DATA_OFFSET));
+		if ((boot_params < NON_SECURE_SRAM_START) ||
+		    (boot_params > NON_SECURE_SRAM_END))
+			return;
+
+		boot_mode = *((u32 *)(boot_params + BOOT_MODE_OFFSET));
+
+		if (boot_mode != MMCSD_MODE_FS &&
+		    boot_mode != MMCSD_MODE_RAW)
+#ifdef CONFIG_SUPPORT_EMMC_BOOT
+			boot_mode = MMCSD_MODE_EMMCBOOT;
+#else
+			boot_mode = MMCSD_MODE_UNDEFINED;
+#endif
+	}
+#endif
+
+	gd->arch.omap_boot_mode = boot_mode;
+
+#if !defined(CONFIG_TI814X) && !defined(CONFIG_TI816X) && \
+    !defined(CONFIG_AM33XX) && !defined(CONFIG_AM43XX)
+
+	/* CH flags */
+
+	gd->arch.omap_ch_flags = omap_boot_params->ch_flags;
+#endif
+}
+
+#ifdef CONFIG_SPL_BUILD
+u32 spl_boot_device(void)
+{
+	return gd->arch.omap_boot_device;
+}
+
+u32 spl_boot_mode(const u32 boot_device)
+{
+	return gd->arch.omap_boot_mode;
+}
+
+void spl_board_init(void)
+{
+	/*
+	 * Save the boot parameters passed from romcode.
+	 * We cannot delay the saving further than this,
+	 * to prevent overwrites.
+	 */
+	save_omap_boot_params();
+
+	/* Prepare console output */
+	preloader_console_init();
+
+#if defined(CONFIG_SPL_NAND_SUPPORT) || defined(CONFIG_SPL_ONENAND_SUPPORT)
+	gpmc_init();
+#endif
+#ifdef CONFIG_SPL_I2C_SUPPORT
+	i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
+#endif
+#if defined(CONFIG_AM33XX) && defined(CONFIG_SPL_MUSB_NEW_SUPPORT)
+	arch_misc_init();
+#endif
+#if defined(CONFIG_HW_WATCHDOG)
+	hw_watchdog_init();
+#endif
+#ifdef CONFIG_AM33XX
+	am33xx_spl_board_init();
+#endif
+}
+
+__weak int board_mmc_init(bd_t *bis)
+{
+	switch (spl_boot_device()) {
+	case BOOT_DEVICE_MMC1:
+		omap_mmc_init(0, 0, 0, -1, -1);
+		break;
+	case BOOT_DEVICE_MMC2:
+	case BOOT_DEVICE_MMC2_2:
+		omap_mmc_init(0, 0, 0, -1, -1);
+		omap_mmc_init(1, 0, 0, -1, -1);
+		break;
+	}
+	return 0;
+}
+
+void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
+{
+	typedef void __noreturn (*image_entry_noargs_t)(u32 *);
+	image_entry_noargs_t image_entry =
+			(image_entry_noargs_t) spl_image->entry_point;
+
+	u32 boot_params = *((u32 *)OMAP_SRAM_SCRATCH_BOOT_PARAMS);
+
+	debug("image entry point: 0x%X\n", spl_image->entry_point);
+	/* Pass the saved boot_params from rom code */
+	image_entry((u32 *)boot_params);
+}
+#endif
+
+#ifdef CONFIG_SCSI_AHCI_PLAT
+void arch_preboot_os(void)
+{
+	ahci_reset((void __iomem *)DWC_AHSATA_BASE);
+}
+#endif
+
+#if defined(CONFIG_USB_FUNCTION_FASTBOOT) && !defined(CONFIG_ENV_IS_NOWHERE)
+int fb_set_reboot_flag(void)
+{
+	printf("Setting reboot to fastboot flag ...\n");
+	setenv("dofastboot", "1");
+	saveenv();
+	return 0;
+}
+#endif