Sandeep Paulraj | 6406d6d | 2009-11-21 13:13:59 -0500 | [diff] [blame] | 1 | Summary |
| 2 | ======= |
| 3 | |
| 4 | This README is about U-Boot support for TI's ARM 926EJS based family of SoCs. |
| 5 | These SOCs are used for cameras, video security and surveillance, DVR's, etc. |
| 6 | DaVinci SOC's comprise of DM644x, DM646x, DM35x and DM36x series of SOC's |
| 7 | Additionally there are some SOCs meant for the audio market which though have |
| 8 | an OMAP part number are very similar to the DaVinci series of SOC's |
| 9 | Additionally, some family members contain a TI DSP and/or graphics |
| 10 | co processors along with a host of other peripherals. |
| 11 | |
| 12 | Currently the following boards are supported: |
| 13 | |
| 14 | * TI DaVinci DM644x EVM |
| 15 | |
| 16 | * TI DaVinci DM646x EVM |
| 17 | |
| 18 | * TI DaVinci DM355 EVM |
| 19 | |
| 20 | * TI DaVinci DM365 EVM |
| 21 | |
| 22 | * TI DA830 EVM |
| 23 | |
Sekhar Nori | 718f746 | 2010-11-19 11:39:46 -0500 | [diff] [blame] | 24 | * TI DA850 EVM |
| 25 | |
Sandeep Paulraj | 6406d6d | 2009-11-21 13:13:59 -0500 | [diff] [blame] | 26 | * DM355 based Leopard board |
| 27 | |
| 28 | * DM644x based schmoogie board |
| 29 | |
| 30 | * DM644x based sffsdr board |
| 31 | |
| 32 | * DM644x based sonata board |
| 33 | |
| 34 | Build |
| 35 | ===== |
| 36 | |
| 37 | * TI DaVinci DM644x EVM: |
| 38 | |
| 39 | make davinci_dvevm_config |
| 40 | make |
| 41 | |
| 42 | * TI DaVinci DM646x EVM: |
| 43 | |
| 44 | make davinci_dm6467evm_config |
| 45 | make |
| 46 | |
| 47 | * TI DaVinci DM355 EVM: |
| 48 | |
| 49 | make davinci_dm355evm_config |
| 50 | make |
| 51 | |
| 52 | * TI DaVinci DM365 EVM: |
| 53 | |
| 54 | make davinci_dm365evm_config |
| 55 | make |
| 56 | |
| 57 | * TI DA830 EVM: |
| 58 | |
| 59 | make da830evm_config |
| 60 | make |
| 61 | |
Sekhar Nori | 718f746 | 2010-11-19 11:39:46 -0500 | [diff] [blame] | 62 | * TI DA850 EVM: |
| 63 | |
| 64 | make da850evm_config |
| 65 | make |
| 66 | |
Sandeep Paulraj | 6406d6d | 2009-11-21 13:13:59 -0500 | [diff] [blame] | 67 | * DM355 based Leopard board: |
| 68 | |
| 69 | make davinci_dm355leopard_config |
| 70 | make |
| 71 | |
| 72 | * DM644x based schmoogie board: |
| 73 | |
| 74 | make davinci_schmoogie_config |
| 75 | make |
| 76 | |
| 77 | * DM644x based sffsdr board: |
| 78 | |
| 79 | make davinci_sffsdr_config |
| 80 | make |
| 81 | |
| 82 | * DM644x based sonata board: |
| 83 | |
| 84 | make davinci_sonata_config |
| 85 | make |
| 86 | |
| 87 | Bootloaders |
| 88 | =============== |
| 89 | |
| 90 | The DaVinci SOC's use 2 bootloaders. The low level initialization |
| 91 | is done by a UBL(user boot loader). The UBL is written to a NAND/NOR/SPI flash |
| 92 | by a programmer. During initial bootup, the ROM Bootloader reads the UBL |
| 93 | from a storage device and loads it into the IRAM. The UBL then loads the U-Boot |
| 94 | into the RAM. |
| 95 | The programmers and UBL are always released as part of any standard TI |
| 96 | software release associated with an SOC. |
| 97 | |
Christian Riesch | 3d2c8e6 | 2011-12-09 09:47:37 +0000 | [diff] [blame^] | 98 | Alternative boot method (DA850 EVM only): |
| 99 | For the DA850 EVM an SPL (secondary program loader, see doc/README.SPL) |
| 100 | is provided to load U-Boot directly from SPI flash. In this case, the |
| 101 | SPL does the low level initialization that is otherwise done by the SPL. |
| 102 | To build U-Boot with this SPL, do |
| 103 | make da850evm_config |
| 104 | make u-boot.ais |
| 105 | and program the resulting u-boot.ais file to the SPI flash of the DA850 EVM. |
| 106 | |
Sekhar Nori | 4f6fc15 | 2010-11-19 11:39:48 -0500 | [diff] [blame] | 107 | Environment Variables |
| 108 | ===================== |
| 109 | |
| 110 | The DA850 EVM allows the user to specify the maximum cpu clock allowed by the |
| 111 | silicon, in Hz, via an environment variable "maxcpuclk". |
| 112 | |
| 113 | The maximum clock rate allowed depends on the silicon populated on the EVM. |
| 114 | Please make sure you understand the restrictions placed on this clock in the |
| 115 | device specific datasheet before setting up this variable. This information is |
| 116 | passed to the Linux kernel using the ATAG_REVISION atag. |
| 117 | |
| 118 | If "maxcpuclk" is not defined, the configuration CONFIG_DA850_EVM_MAX_CPU_CLK |
| 119 | is used to obtain this information. |
| 120 | |
Sandeep Paulraj | 6406d6d | 2009-11-21 13:13:59 -0500 | [diff] [blame] | 121 | Links |
| 122 | ===== |
| 123 | |
| 124 | 1) TI DaVinci DM355 EVM: |
| 125 | http://focus.ti.com/docs/prod/folders/print/tms320dm355.html |
| 126 | http://www.spectrumdigital.com/product_info.php?cPath=103&products_id=203&osCsid=c499af6087317f11b3da19b4e8f1af32 |
| 127 | |
| 128 | 2) TI DaVinci DM365 EVM: |
| 129 | http://focus.ti.com/docs/prod/folders/print/tms320dm365.html?247SEM= |
| 130 | http://support.spectrumdigital.com/boards/evmdm365/revc/ |
| 131 | |
| 132 | 3) DaVinci DM355 based leopard board |
| 133 | http://designsomething.org/leopardboard/default.aspx |
| 134 | http://www.spectrumdigital.com/product_info.php?cPath=103&products_id=192&osCsid=67c20335668ffc57cb35727106eb24b1 |
| 135 | |
| 136 | 4) TI DaVinci DM6467 EVM: |
| 137 | http://focus.ti.com/docs/prod/folders/print/tms320dm6467.html |
| 138 | http://support.spectrumdigital.com/boards/evmdm6467/revf/ |
| 139 | |
| 140 | 5) TI DaVinci DM6446 EVM: |
| 141 | http://focus.ti.com/docs/prod/folders/print/tms320dm6446.html |
| 142 | http://www.spectrumdigital.com/product_info.php?cPath=103&products_id=222 |
| 143 | |
| 144 | 6) TI DA830 EVM |
| 145 | http://focus.ti.com/apps/docs/gencontent.tsp?appId=1&contentId=52385 |
| 146 | http://www.spectrumdigital.com/product_info.php?cPath=37&products_id=214 |
Sekhar Nori | 718f746 | 2010-11-19 11:39:46 -0500 | [diff] [blame] | 147 | |
| 148 | 7) TI DA850 EVM |
| 149 | http://focus.ti.com/docs/prod/folders/print/omap-l138.html |
| 150 | http://www.logicpd.com/products/development-kits/zoom-omap-l138-evm-development-kit |
Heiko Schocher | 337c433 | 2011-09-14 19:59:37 +0000 | [diff] [blame] | 151 | |
| 152 | Davinci special defines |
| 153 | ======================= |
| 154 | |
| 155 | CONFIG_SYS_DV_NOR_BOOT_CFG: AM18xx based boards, booting in NOR Boot mode |
| 156 | need a "NOR Boot Configuration Word" stored |
| 157 | in the NOR Flash. This define adds this. |
| 158 | More Info about this, see: |
| 159 | spraba5a.pdf chapter 3.1 |