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506df9dc58
1. Convert all linker symbols to char[] type so that we can get the
corresponding address by calling array name 'var' or its address
'&var'. In this way, we can avoid some potential issues[1].
2. Remove unused symbol '_TEXT_BASE'. It has been abandoned and has
not been referenced by any source code.
3. Move '__data_end' to the arch x86's own sections header as it's
only used by x86 arch.
4. Remove some duplicate declared linker symbols. Now we use the
standard header file to declare them.
[1] This patch fixes the boot failure on MIPS target. Error log:
SPL: Image overlaps SPL
Fixes: 1b8a1be1a1f1 ("spl: spl_legacy: Fix spl_end address")
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Overview -------- The LS1021A-IOT is a Freescale reference board that hosts the LS1021A SoC. LS1021AIOT board Overview ------------------------- - DDR Controller - Supports 1GB un-buffered DDR3L SDRAM discrete devices(32-bit bus) with 4 bit ECC - DDR power supplies 1.35V to all devices with automatic tracking of VTT - Soldered DDR chip - Supprot one fixed speed - Ethernet - Two on-board SGMII 10/100/1G ethernet ports - One Gbit Etherent RGMII interface to 4-ports switch with 4x 10/100/1000 RJ145 ports - CPLD - 8-bit registers in CPLD for system configuration - connected to IFC_AD[0:7] - Power Supplies - 12V@5A DC - SDHC - SDHC port connects directly to a full 8-bit SD/MMC slot - Support for SDIO devices - USB - Two on-board USB 3.0 - One on-board USB k22 - PCIe - Two MiniPCIe Solts - SATA - Support SATA Connector - AUDIO - AUDIO in and out - I/O Expansion - Arduino Shield Connector - Port0 - CAN/GPIO/Flextimer - Port1 - GPIO/CPLD Expansion - Port2 - SPI/I2C/UART Memory map ----------- The addresses in brackets are physical addresses. Start Address End Address Description Size 0x00_0100_0000 0x00_0FFF_FFFF CCSRBAR 240MB 0x00_4000_0000 0x00_43FF_FFFF QSPI(Chip select 0) 64MB 0x00_4400_0000 0x00_47FF_FFFF QSPI(Chip select 1) 64MB 0x00_6000_0000 0x00_6000_FFFF CPLD 64K 0x00_8000_0000 0x00_BFFF_FFFF DDR 1GB Boot description ----------------- LS1021A-IOT support two ways of boot: Qspi boot and SD boot The board doesn't support boot from another source without changing any switch/jumper.