| Jagannadha Sutradharudu Teki | ba45a07 | 2014-01-09 01:48:11 +0530 | [diff] [blame] | 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 | |
| 20 | * zc70x |
| 21 | - zc702 (single qspi, gem0, mmc) [1] |
| 22 | - zc706 (dual parallel qspi, gem0, mmc) [2] |
| 23 | * zed (single qspi, gem0, mmc) [3] |
| 24 | * microzed (single qspi, gem0, mmc) [4] |
| 25 | * zc770 |
| 26 | - zc770-xm010 (single qspi, gem0, mmc) |
| 27 | - zc770-xm011 (8 or 16 bit nand) |
| 28 | - zc770-xm012 (nor) |
| 29 | - zc770-xm013 (dual parallel qspi, gem1) |
| 30 | |
| Jagannadha Sutradharudu Teki | b3de924 | 2014-01-09 01:48:21 +0530 | [diff] [blame^] | 31 | 3. Bootmode |
| 32 | |
| 33 | Zynq has a facility to read the bootmode from the slcr bootmode register |
| 34 | once user is setting through jumpers on the board - see page no:1546 on [5] |
| 35 | |
| 36 | All possible bootmode values are defined in Table 6-2:Boot_Mode MIO Pins |
| 37 | on [5]. |
| 38 | |
| 39 | board_late_init() will read the bootmode values using slcr bootmode register |
| 40 | at runtime and assign the modeboot variable to specific bootmode string which |
| 41 | is intern used in autoboot. |
| 42 | |
| 43 | SLCR bootmode register Bit[3:0] values |
| 44 | #define ZYNQ_BM_NOR 0x02 |
| 45 | #define ZYNQ_BM_SD 0x05 |
| 46 | #define ZYNQ_BM_JTAG 0x0 |
| 47 | |
| 48 | "modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot" |
| 49 | bootmode strings at runtime. |
| 50 | |
| 51 | 4. Mainline status |
| Jagannadha Sutradharudu Teki | ba45a07 | 2014-01-09 01:48:11 +0530 | [diff] [blame] | 52 | |
| 53 | - Added basic board configurations support. |
| 54 | - Added zynq u-boot bsp code - arch/arm/cpu/armv7/zynq |
| 55 | - Added zynq boards named - zynq, zynq_dcc |
| 56 | - Added zynq drivers: |
| 57 | serial - drivers/serial/serial_zynq.c |
| 58 | net - drivers/net/zynq_gem.c |
| 59 | mmc - drivers/mmc/zynq_sdhci.c |
| 60 | mmc - drivers/mmc/zynq_sdhci.c |
| 61 | spi- drivers/spi/zynq_spi.c |
| 62 | i2c - drivers/i2c/zynq_i2c.c |
| 63 | |
| Jagannadha Sutradharudu Teki | b3de924 | 2014-01-09 01:48:21 +0530 | [diff] [blame^] | 64 | 5. TODO |
| Jagannadha Sutradharudu Teki | ba45a07 | 2014-01-09 01:48:11 +0530 | [diff] [blame] | 65 | |
| 66 | - Add zynq boards support - zc70x, zed, microzed, zc770 |
| 67 | - Add zynq qspi controller driver |
| 68 | - Add zynq nand controller driver |
| 69 | - d-cache support for zynq_gem.c |
| 70 | - FDT support for zynq boards |
| 71 | - Need proper cleanups on board configurations |
| 72 | |
| 73 | [1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm |
| 74 | [2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm |
| 75 | [3] http://zedboard.org/product/zedboard |
| 76 | [4] http://zedboard.org/product/microzed |
| Jagannadha Sutradharudu Teki | b3de924 | 2014-01-09 01:48:21 +0530 | [diff] [blame^] | 77 | [5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf |
| Jagannadha Sutradharudu Teki | ba45a07 | 2014-01-09 01:48:11 +0530 | [diff] [blame] | 78 | |
| 79 | -- |
| 80 | Jagannadha Sutradharudu Teki <jaganna@xilinx.com> |
| 81 | Sun Dec 15 14:52:41 IST 2013 |