mirror of
https://github.com/AsahiLinux/u-boot
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f273e5b2a6
This patch adds options for all the below mentioned configurations and subsequently renames the include/configs/spearxxx.h files to spear3xx_evb.h, spear6xx_evb.h etc to depict evaluation board configuration. SPEAr3xx and SPEAr6xx boards can be compiled in following configurations 1. Environment placed in NAND 2. Console on usb device 3. Console on usb device with environment placed in NAND 4. SPEAr310 and SPEAr320 support environment variables in parallel NOR flash. Signed-off-by: Vipin Kumar <vipin.kumar@st.com> Signed-off-by: Amit Virdi <amit.virdi@st.com> Signed-off-by: Stefan Roese <sr@denx.de>
74 lines
2.4 KiB
Text
74 lines
2.4 KiB
Text
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SPEAr (Structured Processor Enhanced Architecture).
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SPEAr600 is also known as SPEArPlus and SPEAr300 is also known as SPEArBasic
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The SPEAr SoC family embeds a customizable logic that can be programmed
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one-time by a customer at silicon mask level (i.e. not at runtime!).
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U-Boot supports four SoCs: SPEAr600, SPEAr3xx
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All 4 SoCs (SPEAr3xx and SPEAr600) share common peripherals. SPEAr300 and
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SPEAr600 do not have EMI.
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1. ARM926ejs core based (sp600 has two cores, the 2nd handled only in Linux)
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2. FastEthernet (sp600 has Gbit version, but same controller - GMAC)
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3. USB Host
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4. USB Device
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5. NAND controller (FSMC)
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6. Serial NOR ctrl
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7. I2C
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8. SPI
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9. CLCD
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10. others ..
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Everything is supported in Linux.
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u-boot is currently not supporting all peripeharls (just a few as listed below).
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1. USB Device
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2. NAND controller (FSMC)
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3. Serial Memory Interface
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4. EMI (Parallel NOR interface)
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4. I2C
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5. UART
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Build options
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make spear320_config
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spear320 build with environment variables placed at default
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location i.e. Serial NOR device
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make spear320_pnor_config
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This option generates a uboot image that supports emi controller
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for CFI compliant parallel NOR flash. Environment variables are
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placed in Parallel NOR device
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make spear320_nand_config
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spear320 build with environment variables placed in NAND device
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make spear320_usbtty_config
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spear320 build with usbtty terminal as default and environment
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placed at default location
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make spear320_usbtty_pnor_config
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spear320 build with usbtty terminal as default and environment
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placed in pnor device
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make spear320_usbtty_nand_config
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Build with usbtty terminal as default and environment placed in
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NAND device
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make spear300_config
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make spear300_nand_config
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make spear300_usbtty_config
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make spear300_usbtty_nand_config
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make spear310_config
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make spear310_pnor_config
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make spear310_nand_config
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make spear310_usbtty_config
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make spear310_usbtty_pnor_config
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make spear310_usbtty_nand_config
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make spear600_config
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make spear600_nand_config
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make spear600_usbtty_config
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make spear600_usbtty_nand_config
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Mac id storage and retrieval in spear platforms
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Please read doc/README.enetaddr for the implementation guidelines for mac id
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usage. Basically, environment has precedence over board specific storage. The
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ethaddr beeing used for the network interface is always taken only from
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environment variables. Although, we can check the mac id programmed in i2c
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memory by using chip_config command
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