projects / J-u-boot.git / blame
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|---|---|---|
| ba45a072 JT |
1 | # |
| 2 | # Xilinx ZYNQ U-Boot | |
| 3 | # | |
| 4 | # (C) Copyright 2013 Xilinx, Inc. | |
| 5 | # | |
| 6 | # SPDX-License-Identifier: GPL-2.0+ | |
| 7 | # | |
| 8 | ||
| 9 | 1. About this | |
| 10 | ||
| 11 | This document describes the information about Xilinx Zynq U-Boot - | |
| 12 | like supported boards, ML status and TODO list. | |
| 13 | ||
| 14 | 2. Zynq boards | |
| 15 | ||
| 16 | Xilinx Zynq-7000 All Programmable SoCs enable extensive system level | |
| 17 | differentiation, integration, and flexibility through hardware, software, | |
| 18 | and I/O programmability. | |
| 19 | ||
| 9bd53b62 MY |
20 | * zc702 (single qspi, gem0, mmc) [1] |
| 21 | * zc706 (dual parallel qspi, gem0, mmc) [2] | |
| ba45a072 JT |
22 | * zed (single qspi, gem0, mmc) [3] |
| 23 | * microzed (single qspi, gem0, mmc) [4] | |
| 24 | * zc770 | |
| 25 | - zc770-xm010 (single qspi, gem0, mmc) | |
| 26 | - zc770-xm011 (8 or 16 bit nand) | |
| 27 | - zc770-xm012 (nor) | |
| 28 | - zc770-xm013 (dual parallel qspi, gem1) | |
| 29 | ||
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30 | 3. Building |
| 31 | ||
| 9bd53b62 MY |
32 | ex. configure and build for zc702 board |
| 33 | $ make zynq_zc702_config | |
| 10a147bc JT |
34 | $ make |
| 35 | ||
| 10a147bc | 36 | 4. Bootmode |
| b3de9249 JT |
37 | |
| 38 | Zynq has a facility to read the bootmode from the slcr bootmode register | |
| 39 | once user is setting through jumpers on the board - see page no:1546 on [5] | |
| 40 | ||
| 41 | All possible bootmode values are defined in Table 6-2:Boot_Mode MIO Pins | |
| 42 | on [5]. | |
| 43 | ||
| 44 | board_late_init() will read the bootmode values using slcr bootmode register | |
| 45 | at runtime and assign the modeboot variable to specific bootmode string which | |
| 46 | is intern used in autoboot. | |
| 47 | ||
| 48 | SLCR bootmode register Bit[3:0] values | |
| 49 | #define ZYNQ_BM_NOR 0x02 | |
| 50 | #define ZYNQ_BM_SD 0x05 | |
| 51 | #define ZYNQ_BM_JTAG 0x0 | |
| 52 | ||
| 53 | "modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot" | |
| 54 | bootmode strings at runtime. | |
| 55 | ||
| 10a147bc | 56 | 5. Mainline status |
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57 | |
| 58 | - Added basic board configurations support. | |
| 59 | - Added zynq u-boot bsp code - arch/arm/cpu/armv7/zynq | |
| 10a147bc | 60 | - Added zynq boards named - zc70x, zed, microzed, zc770_xm010, zc770_xm012, zc770_xm013 |
| ba45a072 JT |
61 | - Added zynq drivers: |
| 62 | serial - drivers/serial/serial_zynq.c | |
| 63 | net - drivers/net/zynq_gem.c | |
| 64 | mmc - drivers/mmc/zynq_sdhci.c | |
| 65 | mmc - drivers/mmc/zynq_sdhci.c | |
| 66 | spi- drivers/spi/zynq_spi.c | |
| 67 | i2c - drivers/i2c/zynq_i2c.c | |
| 10a147bc JT |
68 | - Done proper cleanups on board configurations |
| 69 | - Added basic FDT support for zynq boards | |
| 70 | - d-cache support for zynq_gem.c | |
| ba45a072 | 71 | |
| 10a147bc | 72 | 6. TODO |
| ba45a072 | 73 | |
| 10a147bc | 74 | - Add zynq boards support - zc770_xm011 |
| ba45a072 JT |
75 | - Add zynq qspi controller driver |
| 76 | - Add zynq nand controller driver | |
| 10a147bc | 77 | - Add FDT support on individual drivers |
| ba45a072 JT |
78 | |
| 79 | [1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm | |
| 80 | [2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm | |
| 81 | [3] http://zedboard.org/product/zedboard | |
| 82 | [4] http://zedboard.org/product/microzed | |
| b3de9249 | 83 | [5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf |
| ba45a072 JT |
84 | |
| 85 | -- | |
| 86 | Jagannadha Sutradharudu Teki <[email protected]> | |
| 87 | Sun Dec 15 14:52:41 IST 2013 |