GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
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+/*
+ * Copyright (c) LOTUS. All rights reserved.
+ */
+
+#include <config.h>
+#include <linux/kconfig.h>
+#include <asm/io.h>
+#include <compiler.h>
+#include <linux/lotus/common.h>
+#include <linux/lotus/timestamp.h>
+#include <linux/lotus/step.h>
+
+#include "time.h"
+
+const uintptr_t image_entry = (CONFIG_SYS_TEXT_BASE);
+
+#ifndef CONFIG_LOTUS_DISABLE_CONSOLE
+#define info(_s)                uart_early_puts(_s)
+#else
+#define info(_s)
+#endif
+#define error(_s)               uart_early_puts(_s)
+#define putstr(_s)              uart_early_puts(_s)
+
+#include "hw_decompress.c"
+#define GZIP_SIZE_OFFSET 0x4
+
+#ifndef CONFIG_SYS_ICACHE_OFF
+/* Invalidate entire I-cache and branch predictor array */
+static void invalidate_icache_all(void)
+{
+	/*
+	 * Invalidate all instruction caches to PoU.
+	 * Also flushes branch target cache.
+	 */
+	asm volatile("mcr p15, 0, %0, c7, c5, 0" : : "r"(0));
+
+	/* Invalidate entire branch predictor array */
+	asm volatile("mcr p15, 0, %0, c7, c5, 6" : : "r"(0));
+
+	/* Full system DSB - make sure that the invalidation is complete */
+	dsb();
+
+	/* ISB - make sure the instruction stream sees it */
+	isb();
+}
+#else
+static void invalidate_icache_all(void)
+{
+}
+#endif
+
+u32 get_timestamp_count(void)
+{
+	return __raw_readl(TIMESTAMP_CNT_ADDR);
+}
+
+void update_timestamp_count(u32 cnt)
+{
+	__raw_writel(cnt, TIMESTAMP_CNT_ADDR);
+}
+
+static u64 stopwatch_get_running_timer(void)
+{
+	writel(1 << 2, STOPWATCH_CTRL_REG2);
+	udelay(4);
+	u64 value = readl(STOPWATCH_RUNNING_VALUE_REG);
+	value += (u64)readl(STOPWATCH_RUNNING_VALUE_REG_H) << 32;
+	return value;
+}
+
+void timestamp_init(void)
+{
+	update_timestamp_count(0);
+}
+
+void timestamp_mark(const char *func, u32 line, u32 type)
+{
+#define timestamp_get_time() stopwatch_get_running_timer()
+	u64 stamp = timestamp_get_time();
+	u32 cnt = get_timestamp_count();
+
+	if (cnt >= TIMESTAMP_MAX_ITEM_CNT) {
+		uart_early_puts("No timestamp item!\n");
+		return;
+	}
+
+	timestamp_item *item =
+		(timestamp_item *)(uintptr_t)TIMESTAMP_ITEM_START_ADDR;
+	item[cnt].stamp = stamp;
+	item[cnt].func = (char *)func;
+	item[cnt].line = line;
+	item[cnt].type = type;
+	cnt++;
+	update_timestamp_count(cnt);
+}
+
+/******************************************************************************/
+void start_armboot(void)
+{
+#ifdef CONFIG_LOTUS_GZIP_BOOT
+	unsigned char *dst = NULL;
+	unsigned int image_data_len;
+	int dst_len;
+	int ret;
+	int i;
+	char *p = NULL;
+	char *q = NULL;
+
+	/* timestamp_init(); */
+	info("\r\nUncompress ");
+	TIME_STAMP(0);
+
+	/* use direct address mode */
+	hw_dec_type = 0;
+	/* init hw decompress IP */
+	hw_dec_init();
+
+	step(35);
+
+	/* start decompress */
+	dst = (unsigned char *)image_entry;
+	image_data_len = input_data_end - input_data;
+
+	/* get dets length from compress image */
+	p = (char *)&dst_len;
+	q = (char *)(input_data_end - GZIP_SIZE_OFFSET);
+	for (i = 0; i < sizeof(int); i++)
+		p[i] = q[i];
+
+	ret = hw_dec_decompress(dst, &dst_len, input_data,
+						image_data_len, NULL);
+	if (!ret) {
+		info("Ok!");
+	} else {
+		error("Fail!");
+		while (1);
+	}
+
+	info("\r\n");
+
+	step(36);
+
+	/* uinit hw decompress IP */
+	hw_dec_uinit();
+#else
+	uart_early_puts(" OK, non-compressed boot!\n");
+#endif
+	TIME_STAMP(0);
+
+	step(36);
+
+	void (*uboot)(void);
+	uboot = (void (*))CONFIG_SYS_TEXT_BASE;
+	invalidate_icache_all();
+
+	step(37);
+
+	uboot();
+}
+
+