[PATCH v4 2/5] board: add support for Milk-V Mars CM

[Heinrich Schuchardt]

We already support the VisionFive 2 and the Milk-V Mars board by
patching the VisionFive 2 device tree. With this patch the same
is done for the Milk-V Mars CM.

Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com>
Tested-by: E. Shattow <luc...@gmail.com>
Reviewed-by: E. Shattow <luc...@gmail.com>
---
v5:
        no change
v4:
        no change
v3:
        no change
v2:
        rename spl_fdt_fixup_marc() to spl_fdt_fixup_mars_cm()
        rename device-trees for Mars CM and Mars CM Lite
        change model and compatible properties
---
 board/starfive/visionfive2/spl.c              | 28 ++++++++++++++++++-
 .../visionfive2/starfive_visionfive2.c        | 11 +++++++-
 2 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/board/starfive/visionfive2/spl.c b/board/starfive/visionfive2/spl.c
index ca61b5be227..b555189556a 100644
--- a/board/starfive/visionfive2/spl.c
+++ b/board/starfive/visionfive2/spl.c
@@ -129,6 +129,30 @@ void spl_fdt_fixup_mars(void *fdt)
        }
 }
 
+void spl_fdt_fixup_mars_cm(void *fdt)
+{
+       const char *compat;
+       const char *model;
+
+       spl_fdt_fixup_mars(fdt);
+
+       if (!get_mmc_size_from_eeprom()) {
+               int offset;
+
+               model = "Milk-V Mars CM Lite";
+               compat = "milkv,mars-cm-lite\0starfive,jh7110";
+
+               offset = fdt_path_offset(fdt, 
"/soc/pinctrl/mmc0-pins/mmc0-pins-rest");
+               /* GPIOMUX(22, GPOUT_SYS_SDIO0_RST, GPOEN_ENABLE, GPI_NONE) */
+               fdt_setprop_u32(fdt, offset, "pinmux", 0xff130016);
+       } else {
+               model = "Milk-V Mars CM";
+               compat = "milkv,mars-cm\0starfive,jh7110";
+       }
+       fdt_setprop(fdt, fdt_path_offset(fdt, "/"), "compatible", compat, 
sizeof(compat));
+       fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model", model);
+}
+
 void spl_fdt_fixup_version_a(void *fdt)
 {
        static const char compat[] = 
"starfive,visionfive-2-v1.2a\0starfive,jh7110";
@@ -236,7 +260,9 @@ void spl_perform_fixups(struct spl_image_info *spl_image)
                pr_err("Can't read EEPROM\n");
                return;
        }
-       if (!strncmp(product_id, "MARS", 4)) {
+       if (!strncmp(product_id, "MARC", 4)) {
+               spl_fdt_fixup_mars_cm(spl_image->fdt_addr);
+       } else if (!strncmp(product_id, "MARS", 4)) {
                spl_fdt_fixup_mars(spl_image->fdt_addr);
        } else if (!strncmp(product_id, "VF7110", 6)) {
                version = get_pcb_revision_from_eeprom();
diff --git a/board/starfive/visionfive2/starfive_visionfive2.c 
b/board/starfive/visionfive2/starfive_visionfive2.c
index a86bca533b2..6be53489626 100644
--- a/board/starfive/visionfive2/starfive_visionfive2.c
+++ b/board/starfive/visionfive2/starfive_visionfive2.c
@@ -19,6 +19,10 @@ DECLARE_GLOBAL_DATA_PTR;
 #define JH7110_L2_PREFETCHER_HART_OFFSET       0x2000
 #define FDTFILE_MILK_V_MARS \
        "starfive/jh7110-milkv-mars.dtb"
+#define FDTFILE_MILK_V_MARS_CM \
+       "starfive/jh7110-milkv-mars-cm.dtb"
+#define FDTFILE_MILK_V_MARS_CM_LITE \
+       "starfive/jh7110-milkv-mars-cm-lite.dtb"
 #define FDTFILE_VISIONFIVE2_1_2A \
        "starfive/jh7110-starfive-visionfive-2-v1.2a.dtb"
 #define FDTFILE_VISIONFIVE2_1_3B \
@@ -61,7 +65,12 @@ static void set_fdtfile(void)
                log_err("Can't read EEPROM\n");
                return;
        }
-       if (!strncmp(product_id, "MARS", 4)) {
+       if (!strncmp(product_id, "MARC", 4)) {
+               if (get_mmc_size_from_eeprom())
+                       fdtfile = FDTFILE_MILK_V_MARS_CM;
+               else
+                       fdtfile = FDTFILE_MILK_V_MARS_CM_LITE;
+       } else if (!strncmp(product_id, "MARS", 4)) {
                fdtfile = FDTFILE_MILK_V_MARS;
        } else if (!strncmp(product_id, "VF7110", 6)) {
                version = get_pcb_revision_from_eeprom();
-- 
2.43.0