Commit Graph

31 Commits

Author SHA1 Message Date
Jacob Pease
f8f16d2d34 Added and extra header and changed the comments to be accurate in ram1p1rwbe.sv 2024-08-06 17:36:42 -05:00
Jacob Pease
89ecc10451 Added header to new bootloader files. 2024-08-06 17:28:50 -05:00
Jacob Pease
8b85a5c34a 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
173562d6f4 Added file necessary to split boot.mem into boot.mem and data.mem. 2024-08-02 15:36:06 -05:00
Jacob Pease
1edd5bb39e 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
3fde6c13f7 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
906fa73747 Updated formatting of gpt.c and boot.c. 2024-07-31 11:12:05 -05:00
Jacob Pease
0396181d1e Added function to set SPI clock speed. 2024-07-31 11:00:44 -05:00
Jacob Pease
826576bfc7 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
5d6699dc4c 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
8a5898ebc1 Added carriage returns to line feed characters. UART messages print properly now. 2024-07-25 13:05:57 -05:00
Jacob Pease
f12319ca96 Changed formatting and added new UART divsor calculation from OpenSBI. 2024-07-25 13:04:27 -05:00
Jacob Pease
6fc10adc25 Added ability to split boot.memfile into boot.mem and data.mem. 2024-07-25 11:19:15 -05:00
Jacob Pease
36d330a173 Masked lower byte when writing to DLL. 2024-07-24 22:44:27 -05:00
Jacob Pease
a97c7f0b58 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
e175a41863 Added uart header to gpt.c. 2024-07-24 22:43:16 -05:00
Jacob Pease
23d9c7a486 Fixed syntax bugs. inline functions are now static and in the spi.h header. 2024-07-23 17:00:32 -05:00
Jacob Pease
692bbc35fd Initial pass on SPI based bootloader code finished. 2024-07-23 16:33:49 -05:00
Jacob Pease
659f0d3646 Added some minor error checking to gpt.c. 2024-07-23 16:32:52 -05:00
Jacob Pease
fe0f6de2ab Added sd_read64 to help with block reads and crc checking. 2024-07-23 16:32:29 -05:00
Jacob Pease
a95106b516 Progress made on implementing new disk read function. 2024-07-23 15:47:23 -05:00
Jacob Pease
db13ed63b9 Removed references to card_type. 2024-07-23 15:46:18 -05:00
Jacob Pease
188df61037 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
ef1f55626c Added sd_cmd and utility SPI functions. 2024-07-22 16:57:04 -05:00
Jacob Pease
b6fac581f7 Corrected the CRC7 code with the right sequence of instructions. 2024-07-22 01:19:10 -05:00
Jacob Pease
cc32e90f66 Added inital spi based sd card code. Working on CRC7 code that works. 2024-07-20 14:00:43 -05:00
Jacob Pease
6018ab82ab Added tentative spi_send_byte function. 2024-07-19 12:30:32 -05:00
Jacob Pease
5123a43ba2 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