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zynq7010参数用法介绍

时间：2023-11-19 17:38:48 阅读：293787 作者：PWMF

zynq7010是一款全可编程SoC芯片，具有高度灵活性和可扩展性。本文将从多个方面对zynq7010的参数进行详细介绍。

一、器件规格

zynq7010基于ARM Cortex-A9 MPCore处理器，具有256MB DDR3 SDRAM和16MB QSPI Flash存储器。其主要器件规格如下：

#define CONFIG_ARMV7_MPU
#define CONFIG_SYS_FSL_DDRC_PHY_G1
#define CONFIG_ZYNQ_SERIAL_UART0
#define CONFIG_ZYNQ_PL310_ERRATA_769419
#define CONFIG_SYS_CACHELINE_SIZE	64
#define CONFIG_SYS_DCACHE_OFF
#define CONFIG_SYS_ICACHE_OFF
#define CONFIG_CMD_BOOTZ
#define CONFIG_CMD_ELF
#define CONFIG_CMD_EXT2
#define CONFIG_CMD_EXT4
#define CONFIG_CMD_MMC
#define CONFIG_CMD_MMC_WRITE
#define CONFIG_CMDLINE_EDITING
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_DISPLAY_MENU
#define CONFIG_DISPLAY_BOARDINFO
#define CONFIG_BOOTDELAY	3
#define CONFIG_BOOTARGS		"console=ttyPS0,115200 " 
				"root=/dev/mmcblk0p2 rw rootwait"
#define CONFIG_BOOTCOMMAND	"mmc dev 0; mmc part; "
				"mmc read 0 0x1000 0x2000; env import "
				"-t 0x1000 0x2000"
#define CONFIG_EXTRA_ENV_SETTINGS 
    "kernel_image=uImage" 
    "ramdisk_image=uramdisk.image.gz" 
    "fdt_addr=0x1800000" 
    "fdt_image=my_fdt.dtb" 
    "serial_udev=1"
    "console=ttyAMA0,115200 earlycon" 
    "stdin=serial" 
    "stdout=serial" 
    "stderr=serial"

其中，CONFIG_ARMV7_MPU表示zynq7010支持ARMv7架构的内存保护单元（Memory Protection Unit）；CONFIG_ZYNQ_PL310_ERRATA_769419表示zynq7010存在PL310 Errata 769419，需要特别修复；CONFIG_CMD_ELF、CONFIG_CMD_EXT2、CONFIG_CMD_EXT4等表示zynq7010支持的命令和文件格式。

二、处理器系统

zynq7010的处理器系统包括ARM Cortex-A9 MPCore处理器、AXI总线、内存控制器和DMA控制器等。

1. ARM Cortex-A9 MPCore处理器

ARM Cortex-A9 MPCore处理器是ARM公司的多核心处理器IP，用于集成在SoC芯片中，并拥有非常高的灵活性。zynq7010中采用的是双核处理器，每个核心的主频为667MHz。

#define XPS_BOARD_ZC702
#define XPS_BOARD_ZED
#define XPS_BOARD_ZC706
#define XPS_BOARD_MINIITX
#define XPS_BOARD_MICROZED
#define XPS_BOARD_ZYBO
#define DCC_SILENT
#define CONFIG_COMMON_ENV_SETTINGS 
    "ethaddr=00:0a:35:00:00:00" 
    "eth1addr=00:0a:35:00:00:01" 
    "ethact=GEM0" 
    "serverip=192.168.0.10" 
    "ipaddr=192.168.0.11" 
    "netmask=255.255.255.0" 
    "gatewayip=192.168.0.1" 
    "uboot=u-boot.elf" 
    "script=boot.scr" 
    "bootargs=console=ttyPS0,115200 root=/dev/mmcblk0p2 rw rootwait" 
    "loadbootscript=" 
        "fatload mmc 0 ${scriptaddr} ${script} && " 
        "source ${scriptaddr}" 
    "loaduimage=" 
        "fatload mmc 0 ${loadaddr} ${uimage}" 
    "loadfdt=" 
        "fatload mmc 0 ${fdtaddr} ${fdtfile}" 
    "mmcboot=" 
        "mmc dev ${mmcdev} && " 
        "mmc read ${loadaddr} 0x800 0x2000 && " 
        "mmc read ${fdtaddr} 0x2800 0x800 && " 
        "bootm ${loadaddr} - ${fdtaddr}" 
    "bootcmd=run loadbootscript; run mmcboot;" 
    "autoload=no" 
    "ethaddr=00:0a:35:00:01:22" 
    "autostart=no" 
    "bootdelay=3" 
    "filesize=0x800000"

2. AXI总线

AXI总线是ARM公司推出的高性能、低功耗的内部总线，用于处理器和外设之间的通信。zynq7010中采用了AXI总线作为内部总线，以提高系统性能。

#include 
#include 

int arch_misc_init(void)
{
	ps7_init();
	return 0;
}

#if defined(CONFIG_CMD_PCI) && defined(CONFIG_PCI)
#include 
#define PCIBIOS_MIN_MEM 0x80000000
#define PCIBIOS_MIN_IO  0x01000000

static struct pci_controller pci_hose;
#endif/* (CONFIG_CMD_PCI && CONFIG_PCI) */

int board_early_init_f(void)
{
#if defined(CONFIG_CMD_PCI) && defined(CONFIG_PCIE_XILINX)
	pci_hose.first_busno = 0;
	pci_hose.last_busno = 0xff;
	pci_hose.region_count = 1;
	pci_hose.region[0].phys_start = CONFIG_PCIE_PHYS_BASE1;
	pci_hose.region[0].bus_start = 0;
	pci_hose.region[0].size = CONFIG_PCIE_PHYS_SIZE1;
	pci_set_region(&pci_hose.region[0], CONFIG_PCIE_PHYS_BASE1);
	pci_hose.cfg_addr = (void *)CONFIG_PCI_ADDR;
	pci_hose.cfg_data = (void *)(CONFIG_PCI_ADDR + 4);
	pci_hose.probe_irq = xilinx_pcie_probe_irq;
	pci_hose.setup_hose = xilinx_pcie_setup_hose;
	pci_hose.get_hose_li =
		(void (*)(struct pci_controller *, unsigned long *, unsigned int *))xilinx_pcie_get_hose_li;

	xilinx_pcie_init_hose(&pci_hose);
#endif

	return 0;
}

3. 内存控制器

内存控制器用于管理SoC芯片中的内存资源，包括总线接口、控制逻辑和物理内存组织等。zynq7010采用的是DDR3 SDRAM，具有256MB容量。

#define CONFIG_ZYNQ_SDHCI0
#define CONFIG_ENV_IS_IN_MMC 1
#define CONFIG_SYS_MMC_ENV_DEV 0
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_SELF_INIT
#define CONFIG_CMD_NAND
#define CONFIG_JFFS2_NAND
#define CONFIG_CMD_NAND_TRIMFFS
#define CONFIG_SYS_NAND_MAX_CHIPS	1
#define CONFIG_CMD_USB
#define CONFIG_SYS_CACHELINE_SIZE 64
#define CONFIG_SYS_MALLOC_LEN	(4 * 1024 * 1024)
#define CONFIG_EXTRA_ENV_SETTINGS 
    "uenv_size=4096" 
    "ethaddr=00:0a:35:00:00:00" 
    "serverip=192.168.1.100" 
    "ipaddr=192.168.1.10" 
    "netmask=255.255.255.0" 
    "gatewayip=192.168.1.1" 
    "hostname=microzed" 
    "rootdir=/var/ftp/hdd1/targetfs" 
    "ethact=gem0" 
    "usb_boot=" 
    "echo 'Booting from USB';" 
    "setenv bootargs root=/dev/sda2 rw rootwait console=ttyPS0,115200;" 
    "load usb 0:1 ${kernel_addr_r} ${uenv_addr_r} ${filesize} && env import -t $uenv_addr_r $uenv_size;" 
    "load usb 0:1 ${fdt_addr_r} ${fdt_file} && bootm ${kernel_addr_r} - ${fdt_addr_r}" 
    "" 
    "usb_flash_boot=" 
    "echo 'Booting from USB Flash';" 
    "setenv bootargs root=/dev/sda2 rw rootwait console=ttyPS0,115200;" 
    "load usb 0:1 ${kernel_addr_r} ${uenv_addr_r} ${filesize} && env import -t $uenv_addr_r $uenv_size;" 
    "load usb 0:1 ${fdt_addr_r} ${fdt_file} && bootm ${kernel_addr_r} - ${fdt_addr_r}" 
    "" 
    "set_fdt=" 
    "if test ${board_rev} = 'C'; then" 
    "setenv fdt_file zynq-microzed-7010-revC.dtb;" 
    "else" 
    "setenv fdt_file zynq-microzed-7010.dtb;" 
    "fi" 
    "" 
    "tftp_flash=" 
    "setenv fsize; setenv load_addr 0x1000000; setenv img zynq-microzed-7010.bin;" 
    "tftp $load_addr $img && setenv fsize ${filesize} && echo Fsize=${fsize} bytes &&" 
    "mmc dev 0 && mmc write $load_addr 0 ${fsize} && echo 'Flash Complete'" 
    "" 
    "mmc_boot=" 
    "echo 'Booting from MicroSD Card ...';" 
    "setenv bootargs root=/dev/mmcblk0p2 rw rootwait console=ttyPS0,115200;" 
    "load mmc 0:2 ${kernel_addr_r} ${uenv_addr_r} /boot/uEnv.txt && env import -t $uenv_addr_r $uenv_size;" 
    "load mmc 0:2 ${kernel_addr_r} /boot/zImage ${filesize} && " 
    "load mmc 0:2 ${fdt_addr_r} /boot/${fdt_file} ${filesize} && bootm ${kernel_addr_r} - ${fdt_addr_r}" 
    "" 
    "nandboot=" 
    "echo 'Booting from NAND Flash ...';" 
    "setenv bootargs root=/dev/mtdblock2 rw rootwait console=ttyPS0,115200;" 
    "nand read ${kernel_addr_r} 0x100000 0x600000 && nand read ${fdt_addr_r} 0x700000 0x100000 && bootm ${kernel_addr_r} - ${fdt_addr_r}" 
    ""

#define MEMTEST_START 0x00100000
#define MEMTEST_END 0x01000000

4. DMA控制器

DMA控制器用于管理SoC芯片与外设之间数据传输的控制逻辑，提高数据传输效率。zynq7010中集成了DMA控制器，可以支持高速、大容量数据传输。

#include 
#include 
#include 
#include 
#include 
#include 
#include 

/* FPD SLCR registers */
#define FPD_SLCR_BASEADDR	0xF0000000
#define FPD_LPD_IOU_SLCR_OFFSET	0x1000
#define FPD_SLCR_LOCK_OFFSET	0x4
#define FPD_SLCR_UNLOCK_OFFSET	0x8
#define FPD_SLCR_LOCKSTA_OFFSET	0xC

static inline
u32 zynq_slcr_read(u32 offset)
{
	return readl(FPD_SLCR_BASEADDR + FPD_LPD_IOU_SLCR_OFFSET
		      + offset);
}

static inline
void zynq_slcr_write(u32 val, u32 offset)
{
	writel(val, FPD_SLCR_BASEADDR + FPD_LPD_IOU_SLCR_OFFSET
	       + offset);
}

/*
 * SATA driver interface functions
 */
static void zynq_sata_init(void);

static int zynq_sata_recv_fis(drv_hc_t *hcc, struct sata_fis_d2h_reg **fis,
			      u32 tag);
static int zynq_sata_send_fis(drv_hc_t *hcc, struct sata_fis_h2d_reg *fis);
static int zynq_sata_hard_reset(drv_hc_t *hcc);
static int zynq_sata_mode_detect(drv_hc_t *hcc);
static int z
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