summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
Diffstat (limited to 'doc')
-rw-r--r--doc/README.arm6446
-rw-r--r--doc/README.mini244028
-rw-r--r--doc/README.scrapyard6
-rw-r--r--doc/README.sh7753evb67
-rw-r--r--doc/README.socfpga53
-rw-r--r--doc/README.vxworks19
-rw-r--r--doc/README.zynq94
-rw-r--r--doc/SPI/README.sh_qspi_test38
8 files changed, 321 insertions, 30 deletions
diff --git a/doc/README.arm64 b/doc/README.arm64
new file mode 100644
index 0000000..75586db
--- /dev/null
+++ b/doc/README.arm64
@@ -0,0 +1,46 @@
+U-boot for arm64
+
+Summary
+=======
+No hardware platform of arm64 is available now. The u-boot is
+simulated on Foundation Model and Fast Model for ARMv8.
+
+Notes
+=====
+
+1. Currenly, u-boot run at the highest exception level processor
+ supported and jump to EL2 or optionally EL1 before enter OS.
+
+2. U-boot for arm64 is compiled with AArch64-gcc. AArch64-gcc
+ use rela relocation format, a tool(tools/relocate-rela) by Scott Wood
+ is used to encode the initial addend of rela to u-boot.bin. After running,
+ the u-boot will be relocated to destination again.
+
+3. Fdt should be placed at a 2-megabyte boundary and within the first 512
+ megabytes from the start of the kernel image. So, fdt_high should be
+ defined specially.
+ Please reference linux/Documentation/arm64/booting.txt for detail.
+
+4. Spin-table is used to wake up secondary processors. One location
+ (or per processor location) is defined to hold the kernel entry point
+ for secondary processors. It must be ensured that the location is
+ accessible and zero immediately after secondary processor
+ enter slave_cpu branch execution in start.S. The location address
+ is encoded in cpu node of DTS. Linux kernel store the entry point
+ of secondary processors to it and send event to wakeup secondary
+ processors.
+ Please reference linux/Documentation/arm64/booting.txt for detail.
+
+5. Generic board is supported.
+
+6. CONFIG_ARM64 instead of CONFIG_ARMV8 is used to distinguish aarch64 and
+ aarch32 specific codes.
+
+Contributor
+===========
+ Tom Rini <trini@ti.com>
+ Scott Wood <scottwood@freescale.com>
+ York Sun <yorksun@freescale.com>
+ Simon Glass <sjg@chromium.org>
+ Sharma Bhupesh <bhupesh.sharma@freescale.com>
+ Rob Herring <robherring2@gmail.com>
diff --git a/doc/README.mini2440 b/doc/README.mini2440
deleted file mode 100644
index 311ca52..0000000
--- a/doc/README.mini2440
+++ /dev/null
@@ -1,28 +0,0 @@
-U-Boot for FriendlyARM Mini2440 (s3c2440)
-
-This file contains information for the port of U-Boot to FriendlyARM
-mini2440
-
-All information about the board can be found on :
-http://www.friendlyarm.net/products/mini2440
-
-To build u-boot : ./MAKEALL mini2440
-
-Overview :
---------
-FriendlyARM Mini 2440 SBC (Single-Board Computer) with 400 MHz Samsung S3C2440
-ARM9 processor. The board measures 100 x 100 mm, ideal for learning about ARM9
-systems. It's a low cost board.
-
-Boot Methods :
-------------
-Mini2440 can boot from NOR or NAND.
-
-Build :
------
-./MAKEALL mini2440
-
-or
-
-make mini2440_config
-make
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index 604de0c..2aed855 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -11,8 +11,10 @@ easily if here is something they might want to dig for...
Board Arch CPU Commit Removed Last known maintainer/contact
=================================================================================================
-omap730p2 arm arm926ejs - 2013-11-11
-pn62 powerpc mpc824x - 2013-11-11 Wolfgang Grandegger <wg@grandegger.com>
+mx1ads arm arm920t - 2014-01-13
+mini2440 arm arm920t - 2014-01-13 Gabriel Huau <contact@huau-gabriel.fr>
+omap730p2 arm arm926ejs 79c5c08d 2013-11-11
+pn62 powerpc mpc824x 649acfe1 2013-11-11 Wolfgang Grandegger <wg@grandegger.com>
pdnb3 arm ixp 304db0b 2013-09-24 Stefan Roese <sr@denx.de>
scpu arm ixp 304db0b 2013-09-24 Stefan Roese <sr@denx.de>
omap1510inn arm arm925t 0610a16 2013-09-23 Kshitij Gupta <kshitij@ti.com>
diff --git a/doc/README.sh7753evb b/doc/README.sh7753evb
new file mode 100644
index 0000000..5fe178c
--- /dev/null
+++ b/doc/README.sh7753evb
@@ -0,0 +1,67 @@
+========================================
+Renesas SH7753 EVB board
+========================================
+
+This board specification:
+=========================
+
+The SH7753 EVB (board config name:sh7753evb) has the following device:
+
+ - SH7753 (SH-4A)
+ - DDR3-SDRAM 512MB
+ - SPI ROM 8MB
+ - Gigabit Ethernet controllers
+ - eMMC 4GB
+
+
+Configuration for This board:
+=============================
+
+You can select the configuration as follows:
+
+ - make sh7753evb_config
+
+
+This board specific command:
+============================
+
+This board has the following its specific command:
+
+ - write_mac
+
+
+1. write_mac
+
+You can write MAC address to SPI ROM.
+
+ Usage 1) Write MAC address
+
+ write_mac [GETHERC ch0] [GETHERC ch1]
+
+ For example)
+ => write_mac 74:90:50:00:33:9e 74:90:50:00:33:9f
+ *) We have to input the command as a single line
+ (without carriage return)
+ *) We have to reset after input the command.
+
+ Usage 2) Show current data
+
+ write_mac
+
+ For example)
+ => write_mac
+ GETHERC ch0 = 74:90:50:00:33:9e
+ GETHERC ch1 = 74:90:50:00:33:9f
+
+
+Update SPI ROM:
+============================
+
+1. Copy u-boot image to RAM area.
+2. Probe SPI device.
+ => sf probe 0
+ SF: Detected MX25L6405D with page size 64KiB, total 8 MiB
+3. Erase SPI ROM.
+ => sf erase 0 80000
+4. Write u-boot image to SPI ROM.
+ => sf write 0x48000000 0 80000
diff --git a/doc/README.socfpga b/doc/README.socfpga
new file mode 100644
index 0000000..cfcbbfe
--- /dev/null
+++ b/doc/README.socfpga
@@ -0,0 +1,53 @@
+
+--------------------------------------------
+SOCFPGA Documentation for U-Boot and SPL
+--------------------------------------------
+
+This README is about U-Boot and SPL support for Altera's ARM Cortex-A9MPCore
+based SOCFPGA. To know more about the hardware itself, please refer to
+www.altera.com.
+
+
+--------------------------------------------
+socfpga_dw_mmc
+--------------------------------------------
+Here are macro and detailed configuration required to enable DesignWare SDMMC
+controller support within SOCFPGA
+
+#define CONFIG_MMC
+-> To enable the SD MMC framework support
+
+#define CONFIG_SDMMC_BASE (SOCFPGA_SDMMC_ADDRESS)
+-> The base address of CSR register for DesignWare SDMMC controller
+
+#define CONFIG_GENERIC_MMC
+-> Enable the generic MMC driver
+
+#define CONFIG_SYS_MMC_MAX_BLK_COUNT 256
+-> Using smaller max blk cnt to avoid flooding the limited stack in OCRAM
+
+#define CONFIG_DWMMC
+-> Enable the common DesignWare SDMMC controller framework
+
+#define CONFIG_SOCFPGA_DWMMC
+-> Enable the SOCFPGA specific driver for DesignWare SDMMC controller
+
+#define CONFIG_SOCFPGA_DWMMC_FIFO_DEPTH 1024
+-> The FIFO depth for SOCFPGA DesignWare SDMMC controller
+
+#define CONFIG_SOCFPGA_DWMMC_DRVSEL 3
+-> Phase-shifted clock of sdmmc_clk for controller to drive command and data to
+the card to meet hold time requirements. SD clock is running at 50MHz and
+drvsel is set to shift 135 degrees (3 * 45 degrees). With that, the hold time
+is 135 / 360 * 20ns = 7.5ns.
+
+#define CONFIG_SOCFPGA_DWMMC_SMPSEL 0
+-> Phase-shifted clock of sdmmc_clk used to sample the command and data from
+the card
+
+#define CONFIG_SOCFPGA_DWMMC_BUS_WIDTH 4
+-> Bus width of data line which either 1, 4 or 8 and based on board routing.
+
+#define CONFIG_SOCFPGA_DWMMC_BUS_HZ 50000000
+-> The clock rate to controller. Do note the controller have a wrapper which
+divide the clock from PLL by 4.
diff --git a/doc/README.vxworks b/doc/README.vxworks
new file mode 100644
index 0000000..4cb302e
--- /dev/null
+++ b/doc/README.vxworks
@@ -0,0 +1,19 @@
+From VxWorks 6.9+ (not include 6.9), VxWorks starts adopting device tree as its hardware
+decription mechansim (for PowerPC and ARM), thus requiring boot interface changes.
+This section will describe the new interface.
+
+For PowerPC, the calling convention of the new VxWorks entry point conforms to the ePAPR standard,
+which is shown below (see ePAPR for more details):
+
+ void (*kernel_entry)(fdt_addr,
+ 0, 0, EPAPR_MAGIC, boot_IMA, 0, 0)
+
+For ARM, the calling convention is show below:
+
+ void (*kernel_entry)(void *fdt_addr)
+
+When booting new VxWorks kernel (uImage format), the parameters passed to bootm is like below:
+
+ bootm <kernel image address> - <device tree address>
+
+The do_bootvx command still works as it was for older VxWorks kernels.
diff --git a/doc/README.zynq b/doc/README.zynq
new file mode 100644
index 0000000..043c970
--- /dev/null
+++ b/doc/README.zynq
@@ -0,0 +1,94 @@
+#
+# Xilinx ZYNQ U-Boot
+#
+# (C) Copyright 2013 Xilinx, Inc.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+1. About this
+
+This document describes the information about Xilinx Zynq U-Boot -
+like supported boards, ML status and TODO list.
+
+2. Zynq boards
+
+Xilinx Zynq-7000 All Programmable SoCs enable extensive system level
+differentiation, integration, and flexibility through hardware, software,
+and I/O programmability.
+
+* zc70x
+ - zc702 (single qspi, gem0, mmc) [1]
+ - zc706 (dual parallel qspi, gem0, mmc) [2]
+* zed (single qspi, gem0, mmc) [3]
+* microzed (single qspi, gem0, mmc) [4]
+* zc770
+ - zc770-xm010 (single qspi, gem0, mmc)
+ - zc770-xm011 (8 or 16 bit nand)
+ - zc770-xm012 (nor)
+ - zc770-xm013 (dual parallel qspi, gem1)
+
+3. Building
+
+ # Configure for zc70x board
+ $ make zynq_zc70x_config
+ Configuring for zynq_zc70x board...
+
+ # Building default dts for zc702 board
+ $ make
+
+ # Building specified dts for zc706 board
+ $ make DEVICE_TREE=zynq-zc706
+
+4. Bootmode
+
+Zynq has a facility to read the bootmode from the slcr bootmode register
+once user is setting through jumpers on the board - see page no:1546 on [5]
+
+All possible bootmode values are defined in Table 6-2:Boot_Mode MIO Pins
+on [5].
+
+board_late_init() will read the bootmode values using slcr bootmode register
+at runtime and assign the modeboot variable to specific bootmode string which
+is intern used in autoboot.
+
+SLCR bootmode register Bit[3:0] values
+#define ZYNQ_BM_NOR 0x02
+#define ZYNQ_BM_SD 0x05
+#define ZYNQ_BM_JTAG 0x0
+
+"modeboot" variable can assign any of "norboot", "sdboot" or "jtagboot"
+bootmode strings at runtime.
+
+5. Mainline status
+
+- Added basic board configurations support.
+- Added zynq u-boot bsp code - arch/arm/cpu/armv7/zynq
+- Added zynq boards named - zc70x, zed, microzed, zc770_xm010, zc770_xm012, zc770_xm013
+- Added zynq drivers:
+ serial - drivers/serial/serial_zynq.c
+ net - drivers/net/zynq_gem.c
+ mmc - drivers/mmc/zynq_sdhci.c
+ mmc - drivers/mmc/zynq_sdhci.c
+ spi- drivers/spi/zynq_spi.c
+ i2c - drivers/i2c/zynq_i2c.c
+- Done proper cleanups on board configurations
+- Added basic FDT support for zynq boards
+- d-cache support for zynq_gem.c
+
+6. TODO
+
+- Add zynq boards support - zc770_xm011
+- Add zynq qspi controller driver
+- Add zynq nand controller driver
+- Add FDT support on individual drivers
+
+[1] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC702-G.htm
+[2] http://www.xilinx.com/products/boards-and-kits/EK-Z7-ZC706-G.htm
+[3] http://zedboard.org/product/zedboard
+[4] http://zedboard.org/product/microzed
+[5] http://www.xilinx.com/support/documentation/user_guides/ug585-Zynq-7000-TRM.pdf
+
+--
+Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
+Sun Dec 15 14:52:41 IST 2013
diff --git a/doc/SPI/README.sh_qspi_test b/doc/SPI/README.sh_qspi_test
new file mode 100644
index 0000000..8a33fec
--- /dev/null
+++ b/doc/SPI/README.sh_qspi_test
@@ -0,0 +1,38 @@
+-------------------------------------------------
+ Simple steps used to test the SH-QSPI at U-Boot
+-------------------------------------------------
+
+#0, Currently, SH-QSPI is used by lager board (Renesas ARM SoC R8A7790)
+ and koelsch board (Renesas ARM SoC R8A7791). These boot from SPI ROM
+ basically. Thus, U-Boot start, SH-QSPI will is operating normally.
+
+#1, build U-Boot and load u-boot.bin
+
+ => tftpboot 40000000 u-boot.bin
+ sh_eth Waiting for PHY auto negotiation to complete.. done
+ sh_eth: 100Base/Half
+ Using sh_eth device
+ TFTP from server 192.168.169.1; our IP address is 192.168.169.79
+ Filename 'u-boot.bin'.
+ Load address: 0x40000000
+ Loading: ############
+ 2.5 MiB/s
+ done
+ Bytes transferred = 175364 (2ad04 hex)
+
+#2, Commands to erase/write u-boot to flash device
+
+ Note: This method is description of the lager board. If you want to use the
+ other boards, please change the value according to each environment.
+
+ => sf probe 0
+ SF: Detected S25FL512S_256K with page size 512 Bytes, erase size 64 KiB, total 64 MiB
+ => sf erase 80000 40000
+ SF: 262144 bytes @ 0x80000 Erased: OK
+ => sf write 40000000 80000 175364
+ SF: 1528676 bytes @ 0x80000 Written: OK
+ =>
+
+#3, Push reset button.
+
+ If you're written correctly and driver works properly, U-Boot starts.
generated by cgit v1.1 at 2024-12-27 20:59:38 +0000