33 Commits

Author	SHA1	Message	Date
Jacob Pease	9fae5dfc0a	Added dynamic SDC Clock selector in bootloader code.	2024-08-20 12:19:49 -05:00
Jordan Carlin	564ce83e11	Update linker scripts to avoid hardcoded /opt/riscv	2024-08-09 20:15:28 -07:00
Jacob Pease	2dc7e0f76f	Added and extra header and changed the comments to be accurate in ram1p1rwbe.sv	2024-08-06 17:36:42 -05:00
Jacob Pease	280b5baa59	Added header to new bootloader files.	2024-08-06 17:28:50 -05:00
Jacob Pease	665396fdb3	SD card is now mountable on the fpga. The relevant files have been added. The most important changes are in the buildroot linux configuration and device tree.	2024-08-06 16:57:57 -05:00
Jacob Pease	ad9c98c19c	Added file necessary to split boot.mem into boot.mem and data.mem.	2024-08-02 15:36:06 -05:00
Jacob Pease	897f6561cd	New bootloader now works. Added special print functions and print messages. sdclk is set to 3MHz after initialization currently.	2024-08-02 15:19:52 -05:00
Jacob Pease	fcd88d6e6f	Added functions to read registers and print information on failure. Also added a getTime function for a pretty boot display.	2024-08-02 15:14:30 -05:00
Jacob Pease	38071d8267	Updated formatting of gpt.c and boot.c.	2024-07-31 11:12:05 -05:00
Jacob Pease	ee980e39f3	Added function to set SPI clock speed.	2024-07-31 11:00:44 -05:00
Jacob Pease	c4ae17c679	Cleaned up code formatting a bit and added ability to set the SD card clock speed.	2024-07-31 10:59:41 -05:00
Jacob Pease	a263f836f2	Added extra UART macros and functions for code readability and the ability to print decimal numbers.	2024-07-31 10:58:15 -05:00
Jacob Pease	3975f60299	Added carriage returns to line feed characters. UART messages print properly now.	2024-07-25 13:05:57 -05:00
Jacob Pease	a36e846b02	Changed formatting and added new UART divsor calculation from OpenSBI.	2024-07-25 13:04:27 -05:00
Jacob Pease	336a413f31	Added ability to split boot.memfile into boot.mem and data.mem.	2024-07-25 11:19:15 -05:00
Jacob Pease	d15be492cb	Masked lower byte when writing to DLL.	2024-07-24 22:44:27 -05:00
Jacob Pease	286d80de7e	Initialized UART with Arty frequency and baud rate. Will make this dynamic in the future	2024-07-24 22:43:47 -05:00
Jacob Pease	0107a400d1	Added uart header to gpt.c.	2024-07-24 22:43:16 -05:00
Jacob Pease	dcb2edf888	Fixed syntax bugs. inline functions are now static and in the spi.h header.	2024-07-23 17:00:32 -05:00
Jacob Pease	5f0addd69a	Initial pass on SPI based bootloader code finished.	2024-07-23 16:33:49 -05:00
Jacob Pease	a8b9e7776b	Added some minor error checking to gpt.c.	2024-07-23 16:32:52 -05:00
Jacob Pease	ab00ea5a5c	Added sd_read64 to help with block reads and crc checking.	2024-07-23 16:32:29 -05:00
Jacob Pease	57eeba5c8c	Progress made on implementing new disk read function.	2024-07-23 15:47:23 -05:00
Jacob Pease	9ccb0eb027	Removed references to card_type.	2024-07-23 15:46:18 -05:00
Jacob Pease	bf65cd2817	Added uart print functions and the Wally banner. SD card can now be initialized. Removed old code from boot.c	2024-07-23 14:18:42 -05:00
Jacob Pease	b05052311f	Added sd_cmd and utility SPI functions.	2024-07-22 16:57:04 -05:00
Jacob Pease	e91d2c8b14	Corrected the CRC7 code with the right sequence of instructions.	2024-07-22 01:19:10 -05:00
Jacob Pease	c7d869bc96	Added inital spi based sd card code. Working on CRC7 code that works.	2024-07-20 14:00:43 -05:00
Jacob Pease	53b2a51c89	Added tentative spi_send_byte function.	2024-07-19 12:30:32 -05:00
Jacob Pease	34e89e842c	Added initial spi code to fpga/zsbl	2024-07-19 11:35:12 -05:00
Jacob Pease	7a417d7a6c	Added true bootloader to fpga/zsbl directory.	2024-05-31 15:28:25 -05:00
Rose Thompson	6097444b5a	Added missing file for compiling the fpga zero stage bootloader.	2024-04-11 10:30:56 -05:00
Rose Thompson	60f96112db	Moved the zero stage boot loader to the fpga directory.	2024-03-01 10:23:55 -06:00