Merge branch 'master' of git://www.denx.de/git/u-boot-mpc85xx

4 files changed, 172 insertions, 0 deletions

diff --git a/doc/README.VSC3316-3308 b/doc/README.VSC3316-3308
new file mode 100644
index 0000000..925663b
--- /dev/null
+++ b/doc/README.VSC3316-3308
@@ -0,0 +1,43 @@
+This file contains API information of the initialization code written for
+Vitesse cross-point devices, VSC3316 and VSC3308 for board B4860QDS
+
+Author: Shaveta Leekha <shaveta@freescale.com>
+
+About Device:
+=============
+VSC 3316/3308 is a low-power, low-cost asynchronous crosspoint switch capable of data rates upto 11.5Gbps.
+
+VSC3316 has 16 input and 16 output ports whereas VSC3308 has 8 input and 8 output ports. Programming of these devices are performed by two-wire or four-wire serial interface.
+
+Initialization:
+===============
+On reset, VSC devices are in low-power state with all inputs, outputs and connections in an off state.
+First thing required is to program it to interface with either two-wire or four-wire interface.
+In our case the interface is two-wire I2C serial interface. So the value in Interface mode register at address 79.h to be written is 0x02 for two-wire interface. Also for crosspoint connections to be activated, 01.h value need to be written in 75.h (core configuration register).
+
+API Overview:
+=============
+
+	vsc_if_enable(u8 vsc_addr):
+	--------------------------
+		This API programs VSC to interface with either two-wire or four-wire interface. In our case the interface is two-wire I2C serial interface. So the value in Interface mode register at address 79.h to be written is 0x02 for two-wire interface.
+	Parameters:
+		vsc_addr - Address of the VSC device on board.
+
+
+	vsc3316_config(u8 vsc_addr, int con_arr[][2], u8 num_con):
+	---------------------------------------------------------
+	This API configures the VSC3316 device for required connections. Connection through the VSC device requires the inputs and outputs to be properly configured.
+	Connection registers are on page 00. It Configures the selected input and output correctly and join them to make a connection. It also program Input state register, Global input ISE, Global input LOS, Global core control, Output mode register and core control registers etc.
+	vsc3308_config(u8 vsc_addr, int con_arr[][2], u8 num_con) does the essential configurations for VSC3308.
+
+	Parameters:
+		vsc_addr - Address of the VSC device on board.
+		con_arr - connection array
+		num_con - number of connections to be configured
+
+	vsc_wp_config(u8 vsc_addr):
+	--------------------------
+		For crosspoint connections to be activated, 01.h value need to be written in 75.h (core configuration register), which is done by this API.
+	Parameters:
+		vsc_addr - Address of the VSC device on board.
diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr
index f94b56f..3992640 100644
--- a/doc/README.fsl-ddr
+++ b/doc/README.fsl-ddr
@@ -103,6 +103,11 @@ The ways to configure the ddr interleaving mode
   # bank(chip-select) interleaving (cs0+cs1+cs2+cs3) (4x1)
   setenv hwconfig "fsl_ddr:bank_intlv=cs0_cs1_cs2_cs3"
 
+  # bank(chip-select) interleaving (auto)
+  setenv hwconfig "fsl_ddr:bank_intlv=auto"
+  This auto mode only select from cs0_cs1_cs2_cs3, cs0_cs1, null dependings
+  on DIMMs.
+
 Memory controller address hashing
 ==================================
 If the DDR controller supports address hashing, it can be enabled by hwconfig.
diff --git a/doc/README.mpc85xx-spin-table b/doc/README.mpc85xx-spin-table
new file mode 100644
index 0000000..8da768a
--- /dev/null
+++ b/doc/README.mpc85xx-spin-table
@@ -0,0 +1,26 @@
+Spin table in cache
+=====================================
+As specified by ePAPR v1.1, the spin table needs to be in cached memory. After
+DDR is initialized and U-boot relocates itself into DDR, the spin table is
+accessible for core 0. It is part of release.S, within 4KB range after
+__secondary_start_page. For other cores to use the spin table, the booting
+process is described below:
+
+Core 0 sets up the reset page on the top 4K of memory (or 4GB if total memory
+is more than 4GB), and creates a TLB to map it to 0xffff_f000, regardless of
+the physical address of this page, with WIMGE=0b01010. Core 0 also enables boot
+page translation for secondary cores to use this page of memory. Then 4KB
+memory is copied from __secondary_start_page to the boot page, after flusing
+cache because this page is mapped as normal DDR. Before copying the reset page,
+core 0 puts the physical address of the spin table (which is in release.S and
+relocated to the top of mapped memory) into a variable __spin_table_addr so
+that secondary cores can see it.
+
+When secondary cores boot up from 0xffff_f000 page, they only have one default
+TLB. While booting, they set up another TLB in AS=1 space and jump into
+the new space. The new TLB covers the physical address of the spin table page,
+with WIMGE =0b00100. Now secondary cores can keep polling the spin table
+without stress DDR bus because both the code and the spin table is in cache.
+
+For the above to work, DDR has to set the 'M' bit of WIMGE, in order to keep
+cache coherence.
diff --git a/doc/README.t4240qds b/doc/README.t4240qds
new file mode 100644
index 0000000..677d120
--- /dev/null
+++ b/doc/README.t4240qds
@@ -0,0 +1,98 @@
+Overview
+--------
+The T4240QDS is a high-performance computing evaluation, development and test
+platform supporting the T4240 QorIQ™ Power Architecture™ processor. T4240QDS is
+optimized to support the high-bandwidth DDR3 memory ports, as well as the
+highly-configurable SerDes ports. The system is lead-free and RoHS-compliant.
+
+Board Features
+  SERDES Connections
+	32 lanes grouped into four 8-lane banks
+	Two “front side” banks dedicated to Ethernet
+		- High-speed crosspoint switch fabric on selected lanes
+		- Two PCI Express slots with side-band connector supporting
+		- SGMII
+		- XAUI
+		- HiGig
+		- I-pass connectors allow board-to-board and loopback support
+	Two “back side” banks dedicated to other protocols
+		- High-speed crosspoint switch fabric on all lanes
+		- Four PCI Express slots with side-band connector supporting
+		- PCI Express 3.0
+		- SATA 2.0
+		- SRIO 2.0
+		- Supports 4X Aurora debug with two connectors
+  DDR Controllers
+	Three independant 64-bit DDR3 controllers
+	Supports rates of 1866 up to 2133 MHz data-rate
+	Supports two DDR3/DDR3LP UDIMM/RDIMMs per controller
+	DDR power supplies 1.5V to all devices with automatic tracking of VTT.
+	Power software-switchable to 1.35V if software detects all DDR3LP devices.
+	MT9JSF25672AZ-2G1KZESZF has been tested at 1333, 1600, 1867, 2000 and
+	2133MT/s speeds. For 1867MT/s and above, read-to-write turnaround time
+	increases by 1 clock.
+
+  IFC/Local Bus
+	NAND flash: 8-bit, async or sync, up to 2GB.
+	NOR: 16-bit, Address/Data Multiplexed (ADM), up to 128 MB
+	NOR: 8-bit or 16-bit, non-multiplexed, up to 512MB
+		- NOR devices support 16 virtual banks
+	GASIC: Minimal target within Qixis FPGA
+	PromJET rapid memory download support
+	Address demultiplexing handled within FPGA.
+		- Flexible demux allows 8 or 16 bit evaluation.
+	IFC Debug/Development card
+		- Support for 32-bit devices
+  Ethernet
+	Support two on-board RGMII 10/100/1G ethernet ports.
+	SGMII and XAUI support via SERDES block (see above).
+	1588 support via Symmetricom board.
+  QIXIS System Logic FPGA
+	Manages system power and reset sequencing
+	Manages DUT, board, clock, etc. configuration for dynamic shmoo
+	Collects V-I-T data in background for code/power profiling.
+	Supports legacy TMT test features (POSt, IRS, SYSCLK-synchronous assertion)
+	General fault monitoring and logging
+	Runs from ATX “hot” power rails allowing operation while system is off.
+  Clocks
+	System and DDR clock (SYSCLK, “DDRCLK”)
+		- Switch selectable to one of 16 common settings in the interval 33MHz-166MHz.
+		- Software selectable in 1MHz increments from 1-200MHz.
+	SERDES clocks
+		- Provides clocks to all SerDes blocks and slots
+		- 100, 125 and 156.25 MHz
+  Power Supplies
+	Dedicated regulators for VDD
+		- Adjustable from (0.7V to 1.3V at 80A
+		- Regulators can be controlled by VID and/or software
+	Dedicated regulator for GVDD_PL: 1.35/1.5V at 22A
+		- VTT/MVREF automatically track operating voltage
+	Dedicated regulators/filters for AVDD supplies
+	Dedicated regulators for other supplies: OVDD, BVDD, DVDD, LVDD, POVDD, etc.
+  USB
+	Supports two USB 2.0 ports with integrated PHYs
+		- One type A, one type micro-AB with 1.0A power per port.
+  Other IO
+	eSDHC/MMC
+		- SDHC card slot
+	eSPI port
+		- High-speed serial flash
+	Two Serial port
+	Four I2C ports
+
+Memory map
+----------
+The addresses in brackets are physical addresses.
+
+0x0_0000_0000 (0x0_0000_0000) - 0x0_7fff_ffff   2GB DDR (more than 2GB is initialized but not mapped under with TLB)
+0x0_8000_0000 (0xc_0000_0000) - 0x0_dfff_ffff 1.5GB PCIE memory
+0x0_f000_0000 (0xf_0000_0000) - 0x0_f03f_ffff  4MB  DCSR
+0x0_f400_0000 (0xf_f400_0000) - 0x0_f5ff_ffff  32MB BMan
+0x0_f600_0000 (0xf_f600_0000) - 0x0_f7ff_ffff  32MB QMan
+0x0_f800_0000 (0xf_f800_0000) - 0x0_f803_ffff 256KB PCIE IO
+0x0_e000_0000 (0xf_e000_0000) - 0x0_efff_ffff 256MB NOR flash
+0x0_fe00_0000 (0xf_fe00_0000) - 0x0_feff_ffff  16MB CCSR
+0x0_ffdf_0000 (0xf_ffdf_0000) - 0x0_ffdf_03ff   4KB QIXIS
+0x0_ffff_f000 (0x0_7fff_fff0) - 0x0_ffff_ffff   4KB Boot page translation for secondary cores
+
+The physical address of the last (boot page translation) varies with the actual DDR size.