1 files changed, 250 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/mach-omap2/utils.c b/roms/u-boot/arch/arm/mach-omap2/utils.c
new file mode 100644
index 000000000..6e6791fc6
--- /dev/null
+++ b/roms/u-boot/arch/arm/mach-omap2/utils.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2011 Linaro Limited
+ * Aneesh V <aneesh@ti.com>
+ */
+#include <common.h>
+#include <env.h>
+#include <part.h>
+#include <asm/setup.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/omap_common.h>
+
+static void do_cancel_out(u32 *num, u32 *den, u32 factor)
+{
+	while (1) {
+		if (((*num)/factor*factor == (*num)) &&
+		   ((*den)/factor*factor == (*den))) {
+			(*num) /= factor;
+			(*den) /= factor;
+		} else
+			break;
+	}
+}
+
+#ifdef CONFIG_FASTBOOT_FLASH
+static void omap_set_fastboot_cpu(void)
+{
+	char *cpu;
+	u32 cpu_rev = omap_revision();
+
+	switch (cpu_rev) {
+	case DRA762_ES1_0:
+	case DRA762_ABZ_ES1_0:
+	case DRA762_ACD_ES1_0:
+		cpu = "DRA762";
+		break;
+	case DRA752_ES1_0:
+	case DRA752_ES1_1:
+	case DRA752_ES2_0:
+		cpu = "DRA752";
+		break;
+	case DRA722_ES1_0:
+	case DRA722_ES2_0:
+	case DRA722_ES2_1:
+		cpu = "DRA722";
+		break;
+	default:
+		cpu = NULL;
+		printf("Warning: fastboot.cpu: unknown CPU rev: %u\n", cpu_rev);
+	}
+
+	env_set("fastboot.cpu", cpu);
+}
+
+static void omap_set_fastboot_secure(void)
+{
+	const char *secure;
+	u32 dev = get_device_type();
+
+	switch (dev) {
+	case EMU_DEVICE:
+		secure = "EMU";
+		break;
+	case HS_DEVICE:
+		secure = "HS";
+		break;
+	case GP_DEVICE:
+		secure = "GP";
+		break;
+	default:
+		secure = NULL;
+		printf("Warning: fastboot.secure: unknown CPU sec: %u\n", dev);
+	}
+
+	env_set("fastboot.secure", secure);
+}
+
+static void omap_set_fastboot_board_rev(void)
+{
+	const char *board_rev;
+
+	board_rev = env_get("board_rev");
+	if (board_rev == NULL)
+		printf("Warning: fastboot.board_rev: unknown board revision\n");
+
+	env_set("fastboot.board_rev", board_rev);
+}
+
+#ifdef CONFIG_FASTBOOT_FLASH_MMC
+static u32 omap_mmc_get_part_size(const char *part)
+{
+	int res;
+	struct blk_desc *dev_desc;
+	struct disk_partition info;
+	u64 sz = 0;
+
+	dev_desc = blk_get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV);
+	if (!dev_desc || dev_desc->type == DEV_TYPE_UNKNOWN) {
+		pr_err("invalid mmc device\n");
+		return 0;
+	}
+
+	/* Check only for EFI (GPT) partition table */
+	res = part_get_info_by_name_type(dev_desc, part, &info, PART_TYPE_EFI);
+	if (res < 0)
+		return 0;
+
+	/* Calculate size in bytes */
+	sz = (info.size * (u64)info.blksz);
+	/* to KiB */
+	sz >>= 10;
+
+	return (u32)sz;
+}
+
+static void omap_set_fastboot_userdata_size(void)
+{
+	char buf[16];
+	u32 sz_kb;
+
+	sz_kb = omap_mmc_get_part_size("userdata");
+	if (sz_kb == 0)
+		return; /* probably it's not Android partition table */
+
+	sprintf(buf, "%u", sz_kb);
+	env_set("fastboot.userdata_size", buf);
+}
+#else
+static inline void omap_set_fastboot_userdata_size(void)
+{
+}
+#endif /* CONFIG_FASTBOOT_FLASH_MMC */
+
+static void omap_set_fastboot_product(void)
+{
+	const char *board_name;
+
+	board_name = env_get("board_name");
+	if (board_name == NULL)
+		printf("Warning: fastboot.product: unknown board\n");
+
+	env_set("fastboot.product", board_name);
+}
+
+void omap_set_fastboot_vars(void)
+{
+	omap_set_fastboot_cpu();
+	omap_set_fastboot_secure();
+	omap_set_fastboot_board_rev();
+	omap_set_fastboot_userdata_size();
+	omap_set_fastboot_product();
+}
+#endif /* CONFIG_FASTBOOT_FLASH */
+
+/*
+ * Cancel out the denominator and numerator of a fraction
+ * to get smaller numerator and denominator.
+ */
+void cancel_out(u32 *num, u32 *den, u32 den_limit)
+{
+	do_cancel_out(num, den, 2);
+	do_cancel_out(num, den, 3);
+	do_cancel_out(num, den, 5);
+	do_cancel_out(num, den, 7);
+	do_cancel_out(num, den, 11);
+	do_cancel_out(num, den, 13);
+	do_cancel_out(num, den, 17);
+	while ((*den) > den_limit) {
+		*num /= 2;
+		/*
+		 * Round up the denominator so that the final fraction
+		 * (num/den) is always <= the desired value
+		 */
+		*den = (*den + 1) / 2;
+	}
+}
+
+__weak void omap_die_id(unsigned int *die_id)
+{
+	die_id[0] = die_id[1] = die_id[2] = die_id[3] = 0;
+}
+
+void omap_die_id_serial(void)
+{
+	unsigned int die_id[4] = { 0 };
+	char serial_string[17] = { 0 };
+
+	omap_die_id((unsigned int *)&die_id);
+
+	if (!env_get("serial#")) {
+		snprintf(serial_string, sizeof(serial_string),
+			"%08x%08x", die_id[0], die_id[3]);
+
+		env_set("serial#", serial_string);
+	}
+}
+
+void omap_die_id_get_board_serial(struct tag_serialnr *serialnr)
+{
+	char *serial_string;
+	unsigned long long serial;
+
+	serial_string = env_get("serial#");
+
+	if (serial_string) {
+		serial = simple_strtoull(serial_string, NULL, 16);
+
+		serialnr->high = (unsigned int) (serial >> 32);
+		serialnr->low = (unsigned int) (serial & 0xffffffff);
+	} else {
+		serialnr->high = 0;
+		serialnr->low = 0;
+	}
+}
+
+void omap_die_id_usbethaddr(void)
+{
+	unsigned int die_id[4] = { 0 };
+	unsigned char mac[6] = { 0 };
+
+	omap_die_id((unsigned int *)&die_id);
+
+	if (!env_get("usbethaddr")) {
+		/*
+		 * Create a fake MAC address from the processor ID code.
+		 * First byte is 0x02 to signify locally administered.
+		 */
+		mac[0] = 0x02;
+		mac[1] = die_id[3] & 0xff;
+		mac[2] = die_id[2] & 0xff;
+		mac[3] = die_id[1] & 0xff;
+		mac[4] = die_id[0] & 0xff;
+		mac[5] = (die_id[0] >> 8) & 0xff;
+
+		eth_env_set_enetaddr("usbethaddr", mac);
+
+		if (!env_get("ethaddr"))
+			eth_env_set_enetaddr("ethaddr", mac);
+	}
+}
+
+void omap_die_id_display(void)
+{
+	unsigned int die_id[4] = { 0 };
+
+	omap_die_id(die_id);
+
+	printf("OMAP die ID: %08x%08x%08x%08x\n", die_id[3], die_id[2],
+		die_id[1], die_id[0]);
+}