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
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) LOTUS. All rights reserved.
+ */
+
+/*****************************************************************************/
+#include <linux/lotus/fmc_common.h>
+#include <common.h>
+#include <asm/io.h>
+#include <errno.h>
+
+#define BUFF_LEN			20
+
+/*****************************************************************************/
+static unsigned char fmc_current_dev_type = FLASH_TYPE_DEFAULT;
+static unsigned char fmc_boot_dev_type = FLASH_TYPE_DEFAULT;
+
+/*****************************************************************************/
+unsigned char fmc_ip_user;
+unsigned char fmc_cs_user[CONFIG_FMC_MAX_CS_NUM];
+
+/*****************************************************************************/
+void *get_fmc_ip(void)
+{
+	return &fmc_ip_user;
+}
+/*****************************************************************************/
+unsigned char *get_cs_number(unsigned char cs)
+{
+	return fmc_cs_user + cs;
+}
+/*****************************************************************************/
+int fmc_ip_ver_check(void)
+{
+	unsigned int fmc_ip_ver;
+
+	printf("Check Flash Memory Controller v200 ...");
+	fmc_ip_ver = readl(CONFIG_FMC_REG_BASE + FMC_VERSION);
+	if (fmc_ip_ver != FMC_VER_100) {
+		printf("\n");
+		return -EFAULT;
+	}
+	printf(" Found\n");
+
+	return 0;
+}
+
+/*****************************************************************************/
+void fmc_dev_type_switch(unsigned char type)
+{
+	unsigned int reg, spi_device_type, flash_type;
+	const char *str[] = {"SPI nor", "SPI nand", "Nand", "Boot"};
+
+	if (fmc_current_dev_type == type)
+		return;
+
+	fmc_pr(BT_DBG, "\t|*-Start switch current device type\n");
+
+	if (type > FLASH_TYPE_DEFAULT) {
+		fmc_pr(BT_DBG, "\t||-Switch unknown device type %d\n", type);
+		return;
+	}
+
+	if (fmc_boot_dev_type == FLASH_TYPE_DEFAULT) {
+		reg = readl((void *)(SYS_CTRL_REG_BASE + REG_SYSSTAT));
+		fmc_pr(BT_DBG, "\t||-Get system STATUS[%#x]%#x\n",
+		       SYS_CTRL_REG_BASE + REG_SYSSTAT, reg);
+		fmc_boot_dev_type = get_spi_device_type(reg);
+		fmc_pr(BT_DBG, "\t||-Init boot device type to %s flash\n",
+		       str[fmc_boot_dev_type]);
+	}
+
+	if (type == FLASH_TYPE_DEFAULT)
+		spi_device_type = fmc_boot_dev_type;
+	else
+		spi_device_type = type;
+
+	fmc_pr(BT_DBG, "\t||-Switch type to %s flash\n", str[type]);
+
+	reg = readl((void *)(CONFIG_FMC_REG_BASE + FMC_CFG));
+	fmc_pr(BT_DBG, "\t||-Get FMC CFG[%#x]%#x\n", FMC_CFG, reg);
+	flash_type = (reg & FLASH_SEL_MASK) >> FLASH_SEL_SHIFT;
+	if (spi_device_type != flash_type) {
+		reg &= ~FLASH_SEL_MASK;
+		reg |= fmc_cfg_flash_sel(spi_device_type);
+		writel(reg, (void *)(CONFIG_FMC_REG_BASE + FMC_CFG));
+		fmc_pr(BT_DBG, "\t||-Set FMC CFG[%#x]%#x\n", FMC_CFG, reg);
+	}
+	fmc_current_dev_type = spi_device_type;
+
+	fmc_pr(BT_DBG, "\t|*-End switch current device type\n");
+}
+
+/*****************************************************************************/
+char *ulltostr(unsigned long long size)
+{
+	int ix;
+	static char buffer[BUFF_LEN];
+	char *fmt[] = {"%u", "%uK", "%uM", "%uG", "%uT"};
+	/* 4 size type ,0x3ff Obtains the lower six bits*/
+	for (ix = 0; (ix < 4) && !(size & 0x3FF) && size; ix++)
+		size = (size >> 10); /* byte to kb, right left 10 */
+
+	sprintf(buffer, fmt[ix], size);
+	return buffer;
+}
+
+/*****************************************************************************/
+void debug_register_dump(void)
+{
+	unsigned int ix;
+	unsigned long base = CONFIG_FMC_REG_BASE;
+
+	printf("Register dump:");
+	/* 0x98  Register length , 4 is Byte */
+	for (ix = 0; ix <= 0x98; ix += 0x04) {
+		if (!(ix & 0x0F))
+			printf("\n0x%08lX: ", base + ix);
+		printf("%08X ", readl((void *)(uintptr_t)(base + ix)));
+	}
+	printf("\n");
+}
+/*****************************************************************************/
+/* REG_SYSSTAT 0: 3 Bytes address boot mode; 1: 4Bytes address boot mode */
+unsigned int get_fmc_boot_mode(void)
+{
+	unsigned int regval;
+	unsigned int boot_mode;
+	regval = readl(SYS_CTRL_REG_BASE + REG_SYSSTAT);
+	boot_mode = get_spi_nor_addr_mode(regval);
+	return boot_mode;
+}