X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=shakti%2Fm_class.mdwn;h=9f96863e49c9a176feb060186fd45884a4ff8dee;hb=accf72ba93cb78b88c4f0f0e4463d96ab7fadddf;hp=a3f217d4035d8e54e4b790dfd455cbd77d88af95;hpb=3a1c4ea5e6a1e7a3a3031400b60cdd0067f78b02;p=libreriscv.git
diff --git a/shakti/m_class.mdwn b/shakti/m_class.mdwn
index a3f217d40..9f96863e4 100644
--- a/shakti/m_class.mdwn
+++ b/shakti/m_class.mdwn
@@ -108,7 +108,7 @@ firmly a priority focus.
* SD/MMC for external MicroSD
* SD/MMC for on-PCB eMMC (care needed on power/boot sequence)
* NAND Flash (not recommended), requires 8080/ATI-style Bus with dedicated CS#
-* Optional 4-wire SPI NAND/NOR for boot (XIP - Execute In-place - recommended).
+* Optional 4-wire [[QSPI]] NAND/NOR for boot (XIP - Execute In-place - recommended).
* Audio over [[I2S]] (5-pin: 4 for output, 1 for input), fall-back to USB Audio
* Audio also over [[AC97]]
* Some additional SPI peripherals, e.g. connection to low-power MCU.
@@ -179,6 +179,10 @@ image acceleration, scalable fonts, and Z-buffering and much more.
* MIAOW: ATI-compatible shader engine
* ORSOC GPU contains some primitives that can be used
* SIMD RISC-V extensions can obviate the need for a "full" separate GPU
+* Nyuzi (OpenMP, based on Intel Larabee Compute Engine)
+* Rasteriser
+* OpenShader
+* GPLGPU
### Video encode / decode
@@ -202,8 +206,8 @@ TBD
* Plain [[GPIO]] multiplexed with a [[pinmux]] onto (nearly) all other pins
* RGB/TTL up to 1440x900 @ 60fps, 24-bit colour
-* 2x 1-lane SPI
-* 1x 4-lane (quad) SPI
+* 2x 1-lane [[SPI]]
+* 1x 4-lane (quad) [[QSPI]]
* 4x SD/MMC (1x 1/2/4/8-bit, 3x 1/2/4-bit)
* 2x full UART incl. CTS/RTS
* 3x UART (TX/RX only)
@@ -213,7 +217,8 @@ TBD
* 32x [[EINT]]-cable GPIO with full edge-triggered and low/high IRQ capability
* 1x [[I2S]] audio with 4-wire output and 1-wire input.
* 3x USB2 (ULPI for reduced pincount) each capable of USB-OTG support
-* DDR3/DDR3L/LPDDR3 32-bit-wide memory controller
+* [[DDR]] DDR3/DDR3L/LPDDR3 32-bit-wide memory controller
+* [[JTAG]] for debugging
Some interfaces at:
@@ -224,11 +229,14 @@ Some interfaces at:
*
Pinmux ("IOF") for multiplexing several I/O functions onto a single pin
*
- including AXI, DMA, GPIO, I2C, JTAG, PLIC, QSPI, SDRAM, UART (and TCM?). FlexBus, HyperBus and xSPI to
- be added.
+ including AXI, DMA, GPIO, I2C, JTAG, PLIC, QSPI, SDRAM, UART (and TCM?).
+ FlexBus, HyperBus and xSPI to be added.
List of Interfaces:
+* [[CSI]]
+* [[DDR]]
+* [[JTAG]]
* [[I2C]]
* [[I2S]]
* [[PWM]]
@@ -236,9 +244,11 @@ List of Interfaces:
* [[FlexBus]]
* LCD / RGB/TTL [[RGBTTL]]
* [[SPI]]
+* [[QSPI]]
* SD/MMC and eMMC [[sdmmc]]
* Pin Multiplexing [[pinmux]]
* Gigabit Ethernet [[RGMII]]
+* SDRAM [[sdram]]
List of Internal Interfaces:
@@ -333,10 +343,23 @@ and accurate PLL clock timing provided, it may become possible to bit-bang
and software-emulate high-speed interfaces such as SATA, HDMI, PCIe and
many more.
+# Testing
+
+* cocotb
+* cocotb AXI4 stream interface
+
# Research (to investigate)
*
*
* 110nm DDR3 PHY
+* myhdl HDL cores
+* B Extension proposal
+* Bit-extracts
+* Bit-reverse
+* Bit-permutations
+* Commentary on Micro-controller
+* P-SIMD
+
+>
[[!tag cpus]]
-