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README.qspi22-Oct-20201.4K
README.soc22-Oct-202011K

README.core_prefetch

      1 Core instruction prefetch disable
      2 ---------------------------------
      3 To disable instruction prefetch of core; hwconfig needs to be updated.
      4 for e.g.
      5 setenv hwconfig 'fsl_ddr:bank_intlv=auto;core_prefetch:disable=0x02'
      6 
      7 Here 0x02 can be replaced with any valid value except Mask[0] bit. It
      8 represents 64 bit mask. The 64-bit Mask has one bit for each core.
      9 Mask[0] = core0
     10 Mask[1] = core1
     11 Mask[2] = core2
     12 etc
     13 If the bit is set ('b1) in the mask, then prefetch is disabled for
     14 that core when it is released from reset.
     15 
     16 core0 prefetch should not be disabled i.e. Mask[0] should never be set.
     17 Setting Mask[0] may lead to undefined behavior.
     18 
     19 Once disabled, prefetch remains disabled until the next reset.
     20 There is no function to re-enable prefetch.
     21 

README.falcon

      1 Falcon boot option
      2 ------------------
      3 Falcon boot is a short cut boot method for SD/eMMC targets. It skips loading the
      4 RAM version U-Boot. Instead, it loads FIT image and boot directly to Linux.
      5 CONFIG_SPL_OS_BOOT enables falcon boot. CONFIG_SPL_LOAD_FIT enables the FIT
      6 image support (also need CONFIG_SPL_OF_LIBFDT, CONFIG_SPL_FIT and optionally
      7 CONFIG_SPL_GZIP).
      8 
      9 To enable falcon boot, a hook function spl_start_uboot() returns 0 to indicate
     10 booting U-Boot is not the first choice. The kernel FIT image needs to be put
     11 at CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR. SPL mmc driver reads the header to
     12 determine if this is a FIT image. If true, FIT image components are parsed and
     13 copied or decompressed (if applicable) to their destinations. If FIT image is
     14 not found, normal U-Boot flow will follow.
     15 
     16 An important part of falcon boot is to prepare the device tree. A normal U-Boot
     17 does FDT fixups when booting Linux. For falcon boot, Linux boots directly from
     18 SPL, skipping the normal U-Boot. The device tree has to be prepared in advance.
     19 A command "spl export" should be called under the normal RAM version U-Boot.
     20 It is equivalent to go through "bootm" step-by-step until device tree fixup is
     21 done. The device tree in memory is the one needed for falcon boot. Falcon boot
     22 flow suggests to save this image to SD/eMMC at the location pointed by macro
     23 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR, with maximum size specified by macro
     24 CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS. However, when FIT image is used for
     25 Linux, the device tree stored in FIT image overwrites the memory loaded by spl
     26 driver from these sectors. We could change this loading order to favor the
     27 stored sectors. But when secure boot is enabled, these sectors are used for
     28 signature header and needs to be loaded before the FIT image. So it is important
     29 to understand the device tree in FIT image should be the one actually used, or
     30 leave it absent to favor the stored sectors. It is easier to deploy the FIT
     31 image with embedded static device tree to multiple boards.
     32 
     33 Macro CONFIG_SYS_SPL_ARGS_ADDR serves two purposes. One is the pointer to load
     34 the stored sectors to. Normally this is the static device tree. The second
     35 purpose is the memory location of signature header for secure boot. After the
     36 FIT image is loaded into memory, it is validated against the signature header
     37 before individual components are extracted (and optionally decompressed) into
     38 their final memory locations, respectively. After the validation, the header
     39 is no longer used. The static device tree is copied into this location. So
     40 this macro is passed as the location of device tree when booting Linux.
     41 
     42 Steps to prepare static device tree
     43 -----------------------------------
     44 To prepare the static device tree for Layerscape boards, it is important to
     45 understand the fixups in U-Boot. Memory size and location, as well as reserved
     46 memory blocks are added/updated. Ethernet MAC addressed are updated. FMan
     47 microcode (if used) is embedded in the device tree. Kernel command line and
     48 initrd information are embedded. Others including CPU status, boot method,
     49 Ethernet port status, etc. are also updated.
     50 
     51 Following normal booting process, all variables are set, all images are loaded
     52 before "bootm" command would be issued to boot, run command
     53 
     54 spl export fdt <address>
     55 
     56 where the address is the location of FIT image. U-Boot goes through the booting
     57 process as if "bootm start", "bootm loados", "bootm ramdisk"... commands but
     58 stops before "bootm go". There we have the fixed-up device tree in memory.
     59 We can check the device tree header by these commands
     60 
     61 fdt addr <fdt address>
     62 fdt header
     63 
     64 Where the fdt address is the device tree in memory. It is printed by U-Boot.
     65 It is useful to know the exact size. One way to extract this static device
     66 tree is to save it to eMMC/SD using command in U-Boot, and extract under Linux
     67 with these commands, repectively
     68 
     69 mmc write <address> <sector> <sectors>
     70 dd if=/dev/mmcblk0 of=<filename> bs=512 skip=<sector> count=<sectors>
     71 
     72 Note, U-Boot takes values as hexadecimals while Linux takes them as decimals by
     73 default. If using NAND or other storage, the commands are slightly different.
     74 When we have the static device tree image, we can re-make the FIT image with
     75 it. It is important to specify the load addresses in FIT image for every
     76 components. Otherwise U-Boot cannot load them correctly.
     77 
     78 Generate FIT image with static device tree
     79 ------------------------------------------
     80 Example:
     81 
     82 /dts-v1/;
     83 
     84 / {
     85 	description = "Image file for the LS1043A Linux Kernel";
     86 	#address-cells = <1>;
     87 
     88 	images {
     89 		kernel {
     90 			description = "ARM64 Linux kernel";
     91 			data = /incbin/("./arch/arm64/boot/Image.gz");
     92 			type = "kernel";
     93 			arch = "arm64";
     94 			os = "linux";
     95 			compression = "gzip";
     96 			load = <0x80080000>;
     97 			entry = <0x80080000>;
     98 		};
     99 		fdt-1 {
    100 			description = "Flattened Device Tree blob";
    101 			data = /incbin/("./fsl-ls1043ardb-static.dtb");
    102 			type = "flat_dt";
    103 			arch = "arm64";
    104 			compression = "none";
    105 			load = <0x90000000>;
    106 		};
    107 		ramdisk {
    108 			description = "LS1043 Ramdisk";
    109                         data = /incbin/("./rootfs.cpio.gz");
    110 			type = "ramdisk";
    111 			arch = "arm64";
    112 			os = "linux";
    113 			compression = "gzip";
    114 			load = <0xa0000000>;
    115 		};
    116 	};
    117 
    118 	configurations {
    119 		default = "config-1";
    120 		config-1 {
    121 			description = "Boot Linux kernel";
    122 			kernel = "kernel";
    123 			fdt = "fdt-1";
    124 			ramdisk = "ramdisk";
    125 			loadables = "fdt", "ramdisk";
    126 		};
    127 	};
    128 };
    129 
    130 The "loadables" is not optional. It tells SPL which images to load into memory.
    131 
    132 Other things to consider
    133 -----------------------
    134 Falcon boot skips a lot of initialization in U-Boot. If Linux expects the
    135 hardware to be initialized by U-Boot, the related code should be ported to SPL
    136 build. For example, if Linux expect Ethernet PHY to be initialized in U-Boot
    137 (which is not a common case), the PHY initialization has to be included in
    138 falcon boot. This increases the SPL image size and should be handled carefully.
    139 If Linux has PHY driver enabled, it still depends on the correct MDIO bus setup
    140 in U-Boot. Normal U-Boot sets the MDC ratio to generate a proper clock signal.
    141 

README.lsch2

      1 #
      2 # Copyright 2015 Freescale Semiconductor
      3 #
      4 # SPDX-License-Identifier:      GPL-2.0+
      5 #
      6 
      7 Freescale LayerScape with Chassis Generation 2
      8 
      9 This architecture supports Freescale ARMv8 SoCs with Chassis generation 2,
     10 for example LS1043A.
     11 

README.lsch3

      1 #
      2 # Copyright 2014-2015 Freescale Semiconductor
      3 #
      4 # SPDX-License-Identifier:      GPL-2.0+
      5 #
      6 
      7 Freescale LayerScape with Chassis Generation 3
      8 
      9 This architecture supports Freescale ARMv8 SoCs with Chassis generation 3,
     10 for example LS2080A.
     11 
     12 DDR Layout
     13 ============
     14 Entire DDR region splits into two regions.
     15  - Region 1 is at address 0x8000_0000 to 0xffff_ffff.
     16  - Region 2 is at 0x80_8000_0000 to the top of total memory,
     17    for example 16GB, 0x83_ffff_ffff.
     18 
     19 All DDR memory is marked as cache-enabled.
     20 
     21 When MC and Debug server is enabled, they carve 512MB away from the high
     22 end of DDR. For example, if the total DDR is 16GB, it shrinks to 15.5GB
     23 with MC and Debug server enabled. Linux only sees 15.5GB.
     24 
     25 The reserved 512MB layout looks like
     26 
     27    +---------------+ <-- top/end of memory
     28    |    256MB      |  debug server
     29    +---------------+
     30    |    256MB      |  MC
     31    +---------------+
     32    |     ...       |
     33 
     34 MC requires the memory to be aligned with 512MB, so even debug server is
     35 not enabled, 512MB is reserved, not 256MB.
     36 
     37 Flash Layout
     38 ============
     39 
     40 (1) A typical layout of various images (including Linux and other firmware images)
     41    is shown below considering a 32MB NOR flash device present on most
     42    pre-silicon platforms (simulator and emulator):
     43 
     44 	-------------------------
     45 	| 	FIT Image	|
     46 	| (linux + DTB + RFS)	|
     47 	------------------------- ----> 0x0120_0000
     48 	| 	Debug Server FW |
     49 	------------------------- ----> 0x00C0_0000
     50 	|	AIOP FW 	|
     51 	------------------------- ----> 0x0070_0000
     52 	|	MC FW 		|
     53 	------------------------- ----> 0x006C_0000
     54 	| 	MC DPL Blob 	|
     55 	------------------------- ----> 0x0020_0000
     56 	| 	BootLoader + Env|
     57 	------------------------- ----> 0x0000_1000
     58 	|	PBI 		|
     59 	------------------------- ----> 0x0000_0080
     60 	|	RCW 		|
     61 	------------------------- ----> 0x0000_0000
     62 
     63 	32-MB NOR flash layout for pre-silicon platforms (simulator and emulator)
     64 
     65 (2) A typical layout of various images (including Linux and other firmware images)
     66     is shown below considering a 128MB NOR flash device present on QDS and RDB
     67     boards:
     68 	----------------------------------------- ----> 0x5_8800_0000 ---
     69 	|	.. Unused .. (7M)		|			|
     70 	----------------------------------------- ----> 0x5_8790_0000	|
     71 	| FIT Image (linux + DTB + RFS)	(40M)	|			|
     72 	----------------------------------------- ----> 0x5_8510_0000	|
     73 	|	PHY firmware (2M)	 	|			|
     74 	----------------------------------------- ----> 0x5_84F0_0000	| 64K
     75 	|	Debug Server FW (2M)		|			| Alt
     76 	----------------------------------------- ----> 0x5_84D0_0000	| Bank
     77 	|	AIOP FW (4M)			|			|
     78 	----------------------------------------- ----> 0x5_8490_0000 (vbank4)
     79 	|	MC DPC Blob (1M) 		|			|
     80 	----------------------------------------- ----> 0x5_8480_0000	|
     81 	|	MC DPL Blob (1M)		|			|
     82 	----------------------------------------- ----> 0x5_8470_0000	|
     83 	| 	MC FW (4M)			|			|
     84 	----------------------------------------- ----> 0x5_8430_0000	|
     85 	|	BootLoader Environment (1M) 	|			|
     86 	----------------------------------------- ----> 0x5_8420_0000	|
     87 	|	BootLoader (1M)			|			|
     88 	----------------------------------------- ----> 0x5_8410_0000	|
     89 	|	RCW and PBI (1M) 		|			|
     90 	----------------------------------------- ----> 0x5_8400_0000 ---
     91 	|	.. Unused .. (7M)		|			|
     92 	----------------------------------------- ----> 0x5_8390_0000	|
     93 	| FIT Image (linux + DTB + RFS)	(40M)	|			|
     94 	----------------------------------------- ----> 0x5_8110_0000	|
     95 	|	PHY firmware (2M)	 	|			|
     96 	----------------------------------------- ----> 0x5_80F0_0000	| 64K
     97 	|	Debug Server FW (2M)		|			| Bank
     98 	----------------------------------------- ----> 0x5_80D0_0000	|
     99 	|	AIOP FW (4M)			|			|
    100 	----------------------------------------- ----> 0x5_8090_0000 (vbank0)
    101 	|	MC DPC Blob (1M) 		|			|
    102 	----------------------------------------- ----> 0x5_8080_0000	|
    103 	|	MC DPL Blob (1M)		|			|
    104 	----------------------------------------- ----> 0x5_8070_0000	|
    105 	| 	MC FW (4M)			|			|
    106 	----------------------------------------- ----> 0x5_8030_0000	|
    107 	|	BootLoader Environment (1M) 	|			|
    108 	----------------------------------------- ----> 0x5_8020_0000	|
    109 	|	BootLoader (1M)			|			|
    110 	----------------------------------------- ----> 0x5_8010_0000	|
    111 	|	RCW and PBI (1M) 		|			|
    112 	----------------------------------------- ----> 0x5_8000_0000 ---
    113 
    114 	128-MB NOR flash layout for QDS and RDB boards
    115 
    116 Environment Variables
    117 =====================
    118 mcboottimeout:	MC boot timeout in milliseconds. If this variable is not defined
    119 		the value CONFIG_SYS_LS_MC_BOOT_TIMEOUT_MS will be assumed.
    120 
    121 mcmemsize:	MC DRAM block size in hex. If this variable is not defined, the value
    122 		CONFIG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE will be assumed.
    123 
    124 mcinitcmd:	This environment variable is defined to initiate MC and DPL deployment
    125 		from the location where it is stored(NOR, NAND, SD, SATA, USB)during
    126 		u-boot booting.If this variable is not defined then MC_BOOT_ENV_VAR
    127 		will be null and MC will not be booted and DPL will not be applied
    128 		during U-boot booting.However the MC, DPC and DPL can be applied from
    129 		console independently.
    130 		The variable needs to be set from the console once and then on
    131 		rebooting the parameters set in the variable will automatically be
    132 		executed. The commmand is demostrated taking an example of mc boot
    133 		using NOR Flash i.e. MC, DPL, and DPC is stored in the NOR flash:
    134 
    135 		cp.b 0xa0000000 0x580300000 $filesize
    136 		cp.b 0x80000000 0x580800000 $filesize
    137 		cp.b 0x90000000 0x580700000 $filesize
    138 
    139 		setenv mcinitcmd 'fsl_mc start mc 0x580300000 0x580800000'
    140 
    141 		If only linux is to be booted then the mcinitcmd environment should be set as
    142 
    143 		setenv mcinitcmd 'fsl_mc start mc 0x580300000 0x580800000;fsl_mc apply DPL 0x580700000'
    144 
    145 		Here the addresses 0xa0000000, 0x80000000, 0x80000000 are of DDR to where
    146 		MC binary, DPC binary and DPL binary are stored and 0x580300000, 0x580800000
    147 		and 0x580700000 are addresses in NOR where these are copied. It is to be
    148 		noted that these addresses in 'fsl_mc start mc 0x580300000 0x580800000;fsl_mc apply DPL 0x580700000'
    149 		can be replaced with the addresses of DDR to
    150 		which these will be copied in case of these binaries being stored in other
    151 		devices like SATA, USB, NAND, SD etc.
    152 
    153 Booting from NAND
    154 -------------------
    155 Booting from NAND requires two images, RCW and u-boot-with-spl.bin.
    156 The difference between NAND boot RCW image and NOR boot image is the PBI
    157 command sequence. Below is one example for PBI commands for LS2085AQDS which
    158 uses NAND device with 2KB/page, block size 128KB.
    159 
    160 1) CCSR 4-byte write to 0x00e00404, data=0x00000000
    161 2) CCSR 4-byte write to 0x00e00400, data=0x1800a000
    162 The above two commands set bootloc register to 0x00000000_1800a000 where
    163 the u-boot code will be running in OCRAM.
    164 
    165 3) Block Copy: SRC=0x0107, SRC_ADDR=0x00020000, DEST_ADDR=0x1800a000,
    166 BLOCK_SIZE=0x00014000
    167 This command copies u-boot image from NAND device into OCRAM. The values need
    168 to adjust accordingly.
    169 
    170 SRC		should match the cfg_rcw_src, the reset config pins. It depends
    171 		on the NAND device. See reference manual for cfg_rcw_src.
    172 SRC_ADDR	is the offset of u-boot-with-spl.bin image in NAND device. In
    173 		the example above, 128KB. For easy maintenance, we put it at
    174 		the beginning of next block from RCW.
    175 DEST_ADDR	is fixed at 0x1800a000, matching bootloc set above.
    176 BLOCK_SIZE	is the size to be copied by PBI.
    177 
    178 RCW image should be written to the beginning of NAND device. Example of using
    179 u-boot command
    180 
    181 nand write <rcw image in memory> 0 <size of rcw image>
    182 
    183 To form the NAND image, build u-boot with NAND config, for example,
    184 ls2080aqds_nand_defconfig. The image needed is u-boot-with-spl.bin.
    185 The u-boot image should be written to match SRC_ADDR, in above example 0x20000.
    186 
    187 nand write <u-boot image in memory> 200000 <size of u-boot image>
    188 
    189 With these two images in NAND device, the board can boot from NAND.
    190 
    191 Another example for LS2085ARDB boards,
    192 
    193 1) CCSR 4-byte write to 0x00e00404, data=0x00000000
    194 2) CCSR 4-byte write to 0x00e00400, data=0x1800a000
    195 3) Block Copy: SRC=0x0119, SRC_ADDR=0x00080000, DEST_ADDR=0x1800a000,
    196 BLOCK_SIZE=0x00014000
    197 
    198 nand write <rcw image in memory> 0 <size of rcw image>
    199 nand write <u-boot image in memory> 80000 <size of u-boot image>
    200 
    201 Notice the difference from QDS is SRC, SRC_ADDR and the offset of u-boot image
    202 to match board NAND device with 4KB/page, block size 512KB.
    203 
    204 Note, LS2088A and LS1088A don't support booting from NAND.
    205 
    206 Booting from SD/eMMC
    207 -------------------
    208 Booting from SD/eMMC requires two images, RCW and u-boot-with-spl.bin.
    209 The difference between SD boot RCW image and QSPI-NOR boot image is the
    210 PBI command sequence. Below is one example for PBI commands for RDB
    211 and QDS which uses SD device with block size 512. Block location can be
    212 calculated by dividing offset with block size.
    213 
    214 1) Block Copy: SRC=0x0040, SRC_ADDR=0x00100000, DEST_ADDR=0x1800a000,
    215 BLOCK_SIZE=0x00016000
    216 
    217 This command copies u-boot image from SD device into OCRAM. The values
    218 need to adjust accordingly for SD/eMMC
    219 
    220 SRC		should match the cfg_rcw_src, the reset config pins.
    221 		The value for source(SRC) can be 0x0040 or 0x0041
    222 		depending upon SD or eMMC.
    223 SRC_ADDR	is the offset of u-boot-with-spl.bin image in SD device.
    224 		In the example above, 1MB. This is same as QSPI-NOR.
    225 DEST_ADDR	is configured at 0x1800a000, matching bootloc set above.
    226 BLOCK_SIZE	is the size to be copied by PBI.
    227 
    228 2) CCSR 4-byte write to 0x01e00404, data=0x00000000
    229 3) CCSR 4-byte write to 0x01e00400, data=0x1800a000
    230 The above two commands set bootloc register to 0x00000000_1800a000 where
    231 the u-boot code will be running in OCRAM.
    232 
    233 
    234 RCW image should be written at 8th block of device(SD/eMMC). Example of
    235 using u-boot command
    236 
    237 mmc erase 0x8 0x10
    238 mmc write <rcw image in memory> 0x8 <size of rcw in block count typical value=10>
    239 
    240 To form the SD-Boot image, build u-boot with SD config, for example,
    241 ls1088ardb_sdcard_qspi_defconfig. The image needed is u-boot-with-spl.bin.
    242 The u-boot image should be written to match SRC_ADDR, in above example
    243 offset 0x100000 in other work it means block location 0x800
    244 
    245 mmc erase 0x800 0x1800
    246 mmc write <u-boot image in memory> 0x800 <size of u-boot image in block count>
    247 
    248 With these two images in SD/eMMC device, the board can boot from SD/eMMC.
    249 
    250 MMU Translation Tables
    251 ======================
    252 
    253 (1) Early MMU Tables:
    254 
    255      Level 0                   Level 1                   Level 2
    256 ------------------        ------------------        ------------------
    257 | 0x00_0000_0000 | -----> | 0x00_0000_0000 | -----> | 0x00_0000_0000 |
    258 ------------------        ------------------        ------------------
    259 | 0x80_0000_0000 | --|    | 0x00_4000_0000 |        | 0x00_0020_0000 |
    260 ------------------   |    ------------------        ------------------
    261 |    invalid     |   |    | 0x00_8000_0000 |        | 0x00_0040_0000 |
    262 ------------------   |    ------------------        ------------------
    263                      |    | 0x00_c000_0000 |        | 0x00_0060_0000 |
    264                      |    ------------------        ------------------
    265                      |    | 0x01_0000_0000 |        | 0x00_0080_0000 |
    266                      |    ------------------        ------------------
    267                      |            ...                      ...
    268                      |    ------------------
    269                      |    | 0x05_8000_0000 |  --|
    270                      |    ------------------    |
    271                      |    | 0x05_c000_0000 |    |
    272                      |    ------------------    |
    273                      |            ...           |
    274                      |    ------------------    |   ------------------
    275                      |--> | 0x80_0000_0000 |    |-> | 0x00_3000_0000 |
    276                           ------------------        ------------------
    277                           | 0x80_4000_0000 |        | 0x00_3020_0000 |
    278                           ------------------        ------------------
    279                           | 0x80_8000_0000 |        | 0x00_3040_0000 |
    280                           ------------------        ------------------
    281                           | 0x80_c000_0000 |        | 0x00_3060_0000 |
    282                           ------------------        ------------------
    283                           | 0x81_0000_0000 |        | 0x00_3080_0000 |
    284                           ------------------        ------------------
    285 			         ...	                   ...
    286 
    287 (2) Final MMU Tables:
    288 
    289      Level 0                   Level 1                   Level 2
    290 ------------------        ------------------        ------------------
    291 | 0x00_0000_0000 | -----> | 0x00_0000_0000 | -----> | 0x00_0000_0000 |
    292 ------------------        ------------------        ------------------
    293 | 0x80_0000_0000 | --|    | 0x00_4000_0000 |        | 0x00_0020_0000 |
    294 ------------------   |    ------------------        ------------------
    295 |    invalid     |   |    | 0x00_8000_0000 |        | 0x00_0040_0000 |
    296 ------------------   |    ------------------        ------------------
    297                      |    | 0x00_c000_0000 |        | 0x00_0060_0000 |
    298                      |    ------------------        ------------------
    299                      |    | 0x01_0000_0000 |        | 0x00_0080_0000 |
    300                      |    ------------------        ------------------
    301                      |            ...                      ...
    302                      |    ------------------
    303                      |    | 0x08_0000_0000 | --|
    304                      |    ------------------   |
    305                      |    | 0x08_4000_0000 |   |
    306                      |    ------------------   |
    307                      |            ...          |
    308                      |    ------------------   |    ------------------
    309                      |--> | 0x80_0000_0000 |   |--> | 0x08_0000_0000 |
    310                           ------------------        ------------------
    311                           | 0x80_4000_0000 |        | 0x08_0020_0000 |
    312                           ------------------        ------------------
    313                           | 0x80_8000_0000 |        | 0x08_0040_0000 |
    314                           ------------------        ------------------
    315                           | 0x80_c000_0000 |        | 0x08_0060_0000 |
    316                           ------------------        ------------------
    317                           | 0x81_0000_0000 |        | 0x08_0080_0000 |
    318                           ------------------        ------------------
    319 			         ...	                   ...
    320 
    321 
    322 DPAA2 commands to manage Management Complex (MC)
    323 ------------------------------------------------
    324 DPAA2 commands has been introduced to manage Management Complex
    325 (MC). These commands are used to start mc, aiop and apply DPL
    326 from u-boot command prompt.
    327 
    328 Please note Management complex Firmware(MC), DPL and DPC are no
    329 more deployed during u-boot boot-sequence.
    330 
    331 Commands:
    332 a) fsl_mc start mc <FW_addr> <DPC_addr> - Start Management Complex
    333 b) fsl_mc apply DPL <DPL_addr> - Apply DPL file
    334 c) fsl_mc start aiop <FW_addr> - Start AIOP
    335 
    336 How to use commands :-
    337 1. Command sequence for u-boot ethernet:
    338    a) fsl_mc start mc <FW_addr> <DPC_addr> - Start Management Complex
    339    b) DPMAC net-devices are now available for use
    340 
    341    Example-
    342 	Assumption: MC firmware, DPL and DPC dtb is already programmed
    343 	on NOR flash.
    344 
    345 	=> fsl_mc start mc 580300000 580800000
    346 	=> setenv ethact DPMAC1@xgmii
    347 	=> ping $serverip
    348 
    349 2. Command sequence for Linux boot:
    350    a) fsl_mc start mc <FW_addr> <DPC_addr> - Start Management Complex
    351    b) fsl_mc apply DPL <DPL_addr> - Apply DPL file
    352    c) No DPMAC net-devices are available for use in u-boot
    353    d) boot Linux
    354 
    355    Example-
    356 	Assumption: MC firmware, DPL and DPC dtb is already programmed
    357 	on NOR flash.
    358 
    359 	=> fsl_mc start mc 580300000 580800000
    360 	=> setenv ethact DPMAC1@xgmii
    361 	=> tftp a0000000 kernel.itb
    362 	=> fsl_mc apply dpl 580700000
    363 	=> bootm a0000000
    364 
    365 3. Command sequence for AIOP boot:
    366    a) fsl_mc start mc <FW_addr> <DPC_addr> - Start Management Complex
    367    b) fsl_mc start aiop <FW_addr> - Start AIOP
    368    c) fsl_mc apply DPL <DPL_addr> - Apply DPL file
    369    d) No DPMAC net-devices are availabe for use in u-boot
    370   Please note actual AIOP start will happen during DPL parsing of
    371   Management complex
    372 
    373   Example-
    374 	Assumption: MC firmware, DPL, DPC dtb and AIOP firmware is already
    375 	programmed on NOR flash.
    376 
    377 	=> fsl_mc start mc 580300000 580800000
    378 	=> fsl_mc start aiop 0x580900000
    379 	=> setenv ethact DPMAC1@xgmii
    380 	=> fsl_mc apply dpl 580700000
    381 
    382 Errata A009635
    383 ---------------
    384 If the core runs at higher than x3 speed of the platform, there is
    385 possiblity about sev instruction to getting missed by other cores.
    386 This is because of SoC Run Control block may not able to sample
    387 the EVENTI(Sev) signals.
    388 
    389 Workaround: Configure Run Control and EPU to periodically send out EVENTI signals to
    390 wake up A57 cores
    391 
    392 Errata workaround uses Env variable "a009635_interval_val". It uses decimal
    393 value.
    394 - Default value of env variable is platform clock (MHz)
    395 
    396 - User can modify default value by updating the env variable
    397   setenv a009635_interval_val 600; saveenv;
    398   It configure platform clock as 600 MHz
    399 
    400 - Env variable as 0 signifies no workaround
    401 

README.qspi

      1 QSPI Boot source support Overview
      2 -------------------
      3 	1. LS1043A
      4 		LS1043AQDS
      5 	2. LS2080A
      6 		LS2080AQDS
      7 	3. LS1012A
      8 		LS1012AQDS
      9 		LS1012ARDB
     10 	4. LS1046A
     11 		LS1046AQDS
     12 		LS1046ARDB
     13 
     14 Booting from QSPI
     15 -------------------
     16 Booting from QSPI requires two images, RCW and u-boot-dtb.bin.
     17 The difference between QSPI boot RCW image and NOR boot image is the PBI
     18 command sequence for setting the boot location pointer. It's should point
     19 to the address for u-boot in QSPI flash.
     20 
     21 RCW image should be written to the beginning of QSPI flash device.
     22 Example of using u-boot command
     23 
     24 => sf probe 0:0
     25 SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB
     26 => sf erase 0 +<size of rcw image>
     27 SF: 65536 bytes @ 0x0 Erased: OK
     28 => sf write <rcw image in memory> 0 <size of rcw image>
     29 SF: 164 bytes @ 0x0 Written: OK
     30 
     31 To get the QSPI image, build u-boot with QSPI config, for example,
     32 <board_name>_qspi_defconfig. The image needed is u-boot-dtb.bin.
     33 The u-boot image should be written to 0x10000(but 0x1000 for LS1043A, LS2080A).
     34 
     35 => sf probe 0:0
     36 SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB
     37 => sf erase 10000 +<size of u-boot image>
     38 SF: 589824 bytes @ 0x10000 Erased: OK
     39 => sf write <u-boot image in memory> 10000 <size of u-boot image>
     40 SF: 580966 bytes @ 0x10000 Written: OK
     41 
     42 With these two images in QSPI flash device, the board can boot from QSPI.
     43 

README.soc

      1 SoC overview
      2 
      3 	1. LS1043A
      4 	2. LS1088A
      5 	3. LS2080A
      6 	4. LS1012A
      7 	5. LS1046A
      8 	6. LS2088A
      9 	7. LS2081A
     10 
     11 LS1043A
     12 ---------
     13 The LS1043A integrated multicore processor combines four ARM Cortex-A53
     14 processor cores with datapath acceleration optimized for L2/3 packet
     15 processing, single pass security offload and robust traffic management
     16 and quality of service.
     17 
     18 The LS1043A SoC includes the following function and features:
     19  - Four 64-bit ARM Cortex-A53 CPUs
     20  - 1 MB unified L2 Cache
     21  - One 32-bit DDR3L/DDR4 SDRAM memory controllers with ECC and interleaving
     22    support
     23  - Data Path Acceleration Architecture (DPAA) incorporating acceleration the
     24    the following functions:
     25    - Packet parsing, classification, and distribution (FMan)
     26    - Queue management for scheduling, packet sequencing, and congestion
     27      management (QMan)
     28    - Hardware buffer management for buffer allocation and de-allocation (BMan)
     29    - Cryptography acceleration (SEC)
     30  - Ethernet interfaces by FMan
     31    - Up to 1 x XFI supporting 10G interface
     32    - Up to 1 x QSGMII
     33    - Up to 4 x SGMII supporting 1000Mbps
     34    - Up to 2 x SGMII supporting 2500Mbps
     35    - Up to 2 x RGMII supporting 1000Mbps
     36  - High-speed peripheral interfaces
     37    - Three PCIe 2.0 controllers, one supporting x4 operation
     38    - One serial ATA (SATA 3.0) controllers
     39  - Additional peripheral interfaces
     40    - Three high-speed USB 3.0 controllers with integrated PHY
     41    - Enhanced secure digital host controller (eSDXC/eMMC)
     42    - Quad Serial Peripheral Interface (QSPI) Controller
     43    - Serial peripheral interface (SPI) controller
     44    - Four I2C controllers
     45    - Two DUARTs
     46    - Integrated flash controller supporting NAND and NOR flash
     47  - QorIQ platform's trust architecture 2.1
     48 
     49 LS1088A
     50 --------
     51 The QorIQ LS1088A processor is built on the Layerscape
     52 architecture combining eight ARM A53 processor cores
     53 with advanced, high-performance datapath acceleration
     54 and networks, peripheral interfaces required for
     55 networking, wireless infrastructure, and general-purpose
     56 embedded applications.
     57 
     58 LS1088A is compliant with the Layerscape Chassis Generation 3.
     59 
     60 Features summary:
     61  - 8 32-bit / 64-bit ARM v8 Cortex-A53 CPUs
     62  - Cores are in 2 cluster of 4-cores each
     63  - 1MB L2 - Cache per cluster
     64  - Cache coherent interconnect (CCI-400)
     65  - 1 64-bit DDR4 SDRAM memory controller with ECC
     66  - Data path acceleration architecture 2.0 (DPAA2)
     67  - 4-Lane 10GHz SerDes comprising of WRIOP
     68  - 4-Lane 10GHz SerDes comprising of PCI, SATA, uQE(TDM/HLDC/UART)
     69  - Ethernet interfaces: SGMIIs, RGMIIs, QSGMIIs, XFIs
     70  - QSPI, SPI, IFC2.0 supporting NAND, NOR flash
     71  - 3 PCIe3.0 , 1 SATA3.0, 2 USB3.0, 1 SDXC, 2 DUARTs etc
     72  - 2 DUARTs
     73  - 4 I2C, GPIO
     74  - Thermal monitor unit(TMU)
     75  - 4 Flextimers and 1 generic timer
     76  - Support for hardware virtualization and partitioning enforcement
     77  - QorIQ platform's trust architecture 3.0
     78  - Service processor (SP) provides pre-boot initialization and secure-boot
     79    capabilities
     80 
     81 LS2080A
     82 --------
     83 The LS2080A integrated multicore processor combines eight ARM Cortex-A57
     84 processor cores with high-performance data path acceleration logic and network
     85 and peripheral bus interfaces required for networking, telecom/datacom,
     86 wireless infrastructure, and mil/aerospace applications.
     87 
     88 The LS2080A SoC includes the following function and features:
     89 
     90  - Eight 64-bit ARM Cortex-A57 CPUs
     91  - 1 MB platform cache with ECC
     92  - Two 64-bit DDR4 SDRAM memory controllers with ECC and interleaving support
     93  - One secondary 32-bit DDR4 SDRAM memory controller, intended for use by
     94   the AIOP
     95  - Data path acceleration architecture (DPAA2) incorporating acceleration for
     96  the following functions:
     97    - Packet parsing, classification, and distribution (WRIOP)
     98    - Queue and Hardware buffer management for scheduling, packet sequencing, and
     99      congestion management, buffer allocation and de-allocation (QBMan)
    100    - Cryptography acceleration (SEC) at up to 10 Gbps
    101    - RegEx pattern matching acceleration (PME) at up to 10 Gbps
    102    - Decompression/compression acceleration (DCE) at up to 20 Gbps
    103    - Accelerated I/O processing (AIOP) at up to 20 Gbps
    104    - QDMA engine
    105  - 16 SerDes lanes at up to 10.3125 GHz
    106  - Ethernet interfaces
    107    - Up to eight 10 Gbps Ethernet MACs
    108    - Up to eight 1 / 2.5 Gbps Ethernet MACs
    109  - High-speed peripheral interfaces
    110    - Four PCIe 3.0 controllers, one supporting SR-IOV
    111  - Additional peripheral interfaces
    112    - Two serial ATA (SATA 3.0) controllers
    113    - Two high-speed USB 3.0 controllers with integrated PHY
    114    - Enhanced secure digital host controller (eSDXC/eMMC)
    115    - Serial peripheral interface (SPI) controller
    116    - Quad Serial Peripheral Interface (QSPI) Controller
    117    - Four I2C controllers
    118    - Two DUARTs
    119    - Integrated flash controller (IFC 2.0) supporting NAND and NOR flash
    120  - Support for hardware virtualization and partitioning enforcement
    121  - QorIQ platform's trust architecture 3.0
    122  - Service processor (SP) provides pre-boot initialization and secure-boot
    123   capabilities
    124 
    125 LS1012A
    126 --------
    127 The LS1012A features an advanced 64-bit ARM v8 Cortex-
    128 A53 processor, with 32 KB of parity protected L1-I cache,
    129 32 KB of ECC protected L1-D cache, as well as 256 KB of
    130 ECC protected L2 cache.
    131 
    132 The LS1012A SoC includes the following function and features:
    133  - One 64-bit ARM v8 Cortex-A53 core with the following capabilities:
    134  - ARM v8 cryptography extensions
    135  - One 16-bit DDR3L SDRAM memory controller, Up to 1.0 GT/s, Supports
    136     16-/8-bit operation (no ECC support)
    137  - ARM core-link CCI-400 cache coherent interconnect
    138  - Packet Forwarding Engine (PFE)
    139  - Cryptography acceleration (SEC)
    140  - Ethernet interfaces supported by PFE:
    141  - One Configurable x3 SerDes:
    142     Two Serdes PLLs supported for usage by any SerDes data lane
    143     Support for up to 6 GBaud operation
    144  - High-speed peripheral interfaces:
    145      - One PCI Express Gen2 controller, supporting x1 operation
    146      - One serial ATA (SATA Gen 3.0) controller
    147      - One USB 3.0/2.0 controller with integrated PHY
    148      - One USB 2.0 controller with ULPI interface. .
    149  - Additional peripheral interfaces:
    150     - One quad serial peripheral interface (QuadSPI) controller
    151     - One serial peripheral interface (SPI) controller
    152     - Two enhanced secure digital host controllers
    153     - Two I2C controllers
    154     - One 16550 compliant DUART (two UART interfaces)
    155     - Two general purpose IOs (GPIO)
    156     - Two FlexTimers
    157     - Five synchronous audio interfaces (SAI)
    158     - Pre-boot loader (PBL) provides pre-boot initialization and RCW loading
    159     - Single-source clocking solution enabling generation of core, platform,
    160     DDR, SerDes, and USB clocks from a single external crystal and internal
    161     crystaloscillator
    162     - Thermal monitor unit (TMU) with +/- 3C accuracy
    163     - Two WatchDog timers
    164     - ARM generic timer
    165  - QorIQ platform's trust architecture 2.1
    166 
    167 LS1046A
    168 --------
    169 The LS1046A integrated multicore processor combines four ARM Cortex-A72
    170 processor cores with datapath acceleration optimized for L2/3 packet
    171 processing, single pass security offload and robust traffic management
    172 and quality of service.
    173 
    174 The LS1046A SoC includes the following function and features:
    175  - Four 64-bit ARM Cortex-A72 CPUs
    176  - 2 MB unified L2 Cache
    177  - One 64-bit DDR4 SDRAM memory controllers with ECC and interleaving
    178    support
    179  - Data Path Acceleration Architecture (DPAA) incorporating acceleration the
    180    the following functions:
    181    - Packet parsing, classification, and distribution (FMan)
    182    - Queue management for scheduling, packet sequencing, and congestion
    183      management (QMan)
    184    - Hardware buffer management for buffer allocation and de-allocation (BMan)
    185    - Cryptography acceleration (SEC)
    186  - Two Configurable x4 SerDes
    187    - Two PLLs per four-lane SerDes
    188    - Support for 10G operation
    189  - Ethernet interfaces by FMan
    190    - Up to 2 x XFI supporting 10G interface (MAC 9, 10)
    191    - Up to 1 x QSGMII (MAC 5, 6, 10, 1)
    192    - Up to 4 x SGMII supporting 1000Mbps (MAC 5, 6, 9, 10)
    193    - Up to 3 x SGMII supporting 2500Mbps (MAC 5, 9, 10)
    194    - Up to 2 x RGMII supporting 1000Mbps (MAC 3, 4)
    195  - High-speed peripheral interfaces
    196    - Three PCIe 3.0 controllers, one supporting x4 operation
    197    - One serial ATA (SATA 3.0) controllers
    198  - Additional peripheral interfaces
    199    - Three high-speed USB 3.0 controllers with integrated PHY
    200    - Enhanced secure digital host controller (eSDXC/eMMC)
    201    - Quad Serial Peripheral Interface (QSPI) Controller
    202    - Serial peripheral interface (SPI) controller
    203    - Four I2C controllers
    204    - Two DUARTs
    205    - Integrated flash controller (IFC) supporting NAND and NOR flash
    206  - QorIQ platform's trust architecture 2.1
    207 
    208 LS2088A
    209 --------
    210 The LS2088A integrated multicore processor combines eight ARM Cortex-A72
    211 processor cores with high-performance data path acceleration logic and network
    212 and peripheral bus interfaces required for networking, telecom/datacom,
    213 wireless infrastructure, and mil/aerospace applications.
    214 
    215 The LS2088A SoC includes the following function and features:
    216 
    217  - Eight 64-bit ARM Cortex-A72 CPUs
    218  - 1 MB platform cache with ECC
    219  - Two 64-bit DDR4 SDRAM memory controllers with ECC and interleaving support
    220  - One secondary 32-bit DDR4 SDRAM memory controller, intended for use by
    221    the AIOP
    222  - Data path acceleration architecture (DPAA2) incorporating acceleration for
    223    the following functions:
    224    - Packet parsing, classification, and distribution (WRIOP)
    225    - Queue and Hardware buffer management for scheduling, packet sequencing, and
    226      congestion management, buffer allocation and de-allocation (QBMan)
    227    - Cryptography acceleration (SEC) at up to 10 Gbps
    228    - RegEx pattern matching acceleration (PME) at up to 10 Gbps
    229    - Decompression/compression acceleration (DCE) at up to 20 Gbps
    230    - Accelerated I/O processing (AIOP) at up to 20 Gbps
    231    - QDMA engine
    232  - 16 SerDes lanes at up to 10.3125 GHz
    233  - Ethernet interfaces
    234    - Up to eight 10 Gbps Ethernet MACs
    235    - Up to eight 1 / 2.5 Gbps Ethernet MACs
    236  - High-speed peripheral interfaces
    237    - Four PCIe 3.0 controllers, one supporting SR-IOV
    238  - Additional peripheral interfaces
    239    - Two serial ATA (SATA 3.0) controllers
    240    - Two high-speed USB 3.0 controllers with integrated PHY
    241    - Enhanced secure digital host controller (eSDXC/eMMC)
    242    - Serial peripheral interface (SPI) controller
    243    - Quad Serial Peripheral Interface (QSPI) Controller
    244    - Four I2C controllers
    245    - Two DUARTs
    246    - Integrated flash controller (IFC 2.0) supporting NAND and NOR flash
    247  - Support for hardware virtualization and partitioning enforcement
    248  - QorIQ platform's trust architecture 3.0
    249  - Service processor (SP) provides pre-boot initialization and secure-boot
    250  capabilities
    251 
    252 LS2088A SoC has 3 more similar SoC personalities
    253 1)LS2048A, few difference w.r.t. LS2088A:
    254        a) Four 64-bit ARM v8 Cortex-A72 CPUs
    255 
    256 2)LS2084A, few difference w.r.t. LS2088A:
    257        a) No AIOP
    258        b) No 32-bit DDR3 SDRAM memory
    259        c) 5 * 1/10G + 5 *1G WRIOP
    260        d) No L2 switch
    261 
    262 3)LS2044A, few difference w.r.t. LS2084A:
    263        a) Four 64-bit ARM v8 Cortex-A72 CPUs
    264 
    265 LS2081A
    266 --------
    267 LS2081A is 40-pin derivative of LS2084A.
    268 So feature-wise it is same as LS2084A.
    269 Refer to LS2084A(LS2088A) section above for details.
    270 
    271 It has one more similar SoC personality
    272 1)LS2041A, few difference w.r.t. LS2081A:
    273        a) Four 64-bit ARM v8 Cortex-A72 CPUs
    274