Sharing the info from Mars CM Lite 4GB: --------EEPROM INFO-------- Vendor : MILK-V Product full SN: MARC-V10-2340-D004E016-000006DF data version: 0x2 PCB revision: 0xc1 BOM revision: A Ethernet MAC0 address: 6c:cf:39:00:83:11 Ethernet MAC1 address: 6c:cf:39:00:83:12 --------EEPROM INFO--------
I do not like this practice of force setting fdtfile environment variable. If I set fdtfile from u-boot prompt and saveenv, I expect that my action as the user will persist over a reboot but instead it gets ignored and overwritten by this strategy. Is this necessary to happen before the boot scripts?
On Sun, Mar 3, 2024 at 5:02 AM Heinrich Schuchardt < heinrich.schuchardt@canonical.com> wrote:
Set environment variable fdtfile to the correct value for the Milk-V Mars board.
Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com
.../visionfive2/starfive_visionfive2.c | 43 +++++++++++++------ 1 file changed, 30 insertions(+), 13 deletions(-)
diff --git a/board/starfive/visionfive2/starfive_visionfive2.c b/board/starfive/visionfive2/starfive_visionfive2.c index 78e118d5a05..9970e309690 100644 --- a/board/starfive/visionfive2/starfive_visionfive2.c +++ b/board/starfive/visionfive2/starfive_visionfive2.c @@ -9,6 +9,7 @@ #include <dm.h> #include <fdt_support.h> #include <env.h> +#include <log.h> #include <asm/arch/eeprom.h> #include <asm/io.h> #include <asm/sections.h> @@ -17,6 +18,8 @@ DECLARE_GLOBAL_DATA_PTR; #define JH7110_L2_PREFETCHER_BASE_ADDR 0x2030000 #define JH7110_L2_PREFETCHER_HART_OFFSET 0x2000 +#define FDTFILE_MILK_V_MARS \
"starfive/jh7110-milkv-mars.dtb"#define FDTFILE_VISIONFIVE2_1_2A \ "starfive/jh7110-starfive-visionfive-2-v1.2a.dtb" #define FDTFILE_VISIONFIVE2_1_3B \ @@ -48,20 +51,34 @@ static void set_fdtfile(void) { u8 version; const char *fdtfile;
const char *product_id;
version = get_pcb_revision_from_eeprom();switch (version) {case 'a':case 'A':fdtfile = FDTFILE_VISIONFIVE2_1_2A;break;case 'b':case 'B':default:fdtfile = FDTFILE_VISIONFIVE2_1_3B;break;};
product_id = get_product_id_from_eeprom();if (!product_id) {log_err("Can't read EEPROM\n");return;}if (!strncmp(product_id, "MARS", 4)) {fdtfile = FDTFILE_MILK_V_MARS;} else if (!strncmp(product_id, "VF7110", 6)) {version = get_pcb_revision_from_eeprom();switch (version) {case 'a':case 'A':fdtfile = FDTFILE_VISIONFIVE2_1_2A;break;case 'b':case 'B':default:fdtfile = FDTFILE_VISIONFIVE2_1_3B;break;}} else {log_err("Unknown product\n");return;} env_set("fdtfile", fdtfile);}
2.43.0