[PATCH v5 11/11] board: starfive: Dynamic configuration of DT for 1.2A and 1.3B

[Yanhong Wang]

The main difference between StarFive VisionFive 2 1.2A and 1.3B is gmac.
You can read the PCB version of the current board by
get_pcb_revision_from_eeprom(), and then dynamically configure the
difference of gmac in spl_perform_fixups() according to different PCB
versions, so that one DT and one defconfig can support both 1.2A and
1.3B versions, which is more user-friendly.

Signed-off-by: Yanhong Wang <yanhong.wang at starfivetech.com>
---
 board/starfive/visionfive2/spl.c | 157 +++++++++++++++++++++++++++++++
 1 file changed, 157 insertions(+)

diff --git a/board/starfive/visionfive2/spl.c b/board/starfive/visionfive2/spl.c
index db0b4cb433..7acd3995aa 100644
--- a/board/starfive/visionfive2/spl.c
+++ b/board/starfive/visionfive2/spl.c
@@ -5,16 +5,173 @@
  */
 
 #include <common.h>
+#include <asm/arch/eeprom.h>
 #include <asm/arch/regs.h>
 #include <asm/arch/spl.h>
 #include <asm/io.h>
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
+#include <fdt_support.h>
+#include <linux/libfdt.h>
 #include <log.h>
 #include <spl.h>
 
+DECLARE_GLOBAL_DATA_PTR;
 #define JH7110_CLK_CPU_ROOT_OFFSET		0x0U
 #define JH7110_CLK_CPU_ROOT_SHIFT		24
 #define JH7110_CLK_CPU_ROOT_MASK		GENMASK(29, 24)
 
+struct starfive_vf2_pro {
+	const char *path;
+	const char *name;
+	const char *value;
+};
+
+static const struct starfive_vf2_pro starfive_vera[] = {
+	{"/soc/ethernet at 16030000/mdio/ethernet-phy at 0", "rx-internal-delay-ps",
+		"1900"},
+	{"/soc/ethernet at 16030000/mdio/ethernet-phy at 0", "tx-internal-delay-ps",
+		"1350"}
+};
+
+static const struct starfive_vf2_pro starfive_verb[] = {
+	{"/soc/ethernet at 16030000", "starfive,tx-use-rgmii-clk", NULL},
+	{"/soc/ethernet at 16040000", "starfive,tx-use-rgmii-clk", NULL},
+
+	{"/soc/ethernet at 16030000/mdio/ethernet-phy at 0",
+		"motorcomm,tx-clk-adj-enabled", NULL},
+	{"/soc/ethernet at 16030000/mdio/ethernet-phy at 0",
+		"motorcomm,tx-clk-100-inverted", NULL},
+	{"/soc/ethernet at 16030000/mdio/ethernet-phy at 0",
+		"motorcomm,tx-clk-1000-inverted", NULL},
+	{"/soc/ethernet at 16030000/mdio/ethernet-phy at 0",
+		"rx-internal-delay-ps", "1900"},
+	{"/soc/ethernet at 16030000/mdio/ethernet-phy at 0",
+		"tx-internal-delay-ps", "1500"},
+
+	{"/soc/ethernet at 16040000/mdio/ethernet-phy at 1",
+		"motorcomm,tx-clk-adj-enabled", NULL},
+	{ "/soc/ethernet at 16040000/mdio/ethernet-phy at 1",
+		"motorcomm,tx-clk-100-inverted", NULL},
+	{"/soc/ethernet at 16040000/mdio/ethernet-phy at 1",
+		"rx-internal-delay-ps", "0"},
+	{"/soc/ethernet at 16040000/mdio/ethernet-phy at 1",
+		"tx-internal-delay-ps", "0"},
+};
+
+void spl_fdt_fixup_version_a(void *fdt)
+{
+	u32 phandle;
+	u8 i;
+	int offset;
+	int ret;
+
+	fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model",
+			   "StarFive VisionFive 2 v1.2A");
+
+	offset = fdt_path_offset(fdt, "/soc/clock-controller at 13020000");
+	phandle = fdt_get_phandle(fdt, offset);
+	offset = fdt_path_offset(fdt, "/soc/ethernet at 16040000");
+
+	fdt_setprop_u32(fdt, offset, "assigned-clocks", phandle);
+	fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_SYSCLK_GMAC1_TX);
+	fdt_appendprop_u32(fdt, offset, "assigned-clocks", phandle);
+	fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_SYSCLK_GMAC1_RX);
+
+	fdt_setprop_u32(fdt, offset,  "assigned-clock-parents", phandle);
+	fdt_appendprop_u32(fdt, offset,  "assigned-clock-parents",
+			   JH7110_SYSCLK_GMAC1_RMII_RTX);
+	fdt_appendprop_u32(fdt, offset,  "assigned-clock-parents", phandle);
+	fdt_appendprop_u32(fdt, offset,  "assigned-clock-parents",
+			   JH7110_SYSCLK_GMAC1_RMII_RTX);
+
+	fdt_setprop_string(fdt, fdt_path_offset(fdt, "/soc/ethernet at 16040000"),
+			   "phy-mode", "rmii");
+
+	for (i = 0; i < ARRAY_SIZE(starfive_vera); i++) {
+		offset = fdt_path_offset(fdt, starfive_vera[i].path);
+
+		if (starfive_vera[i].value)
+			ret = fdt_setprop_u32(fdt, offset,  starfive_vera[i].name,
+					      dectoul(starfive_vera[i].value, NULL));
+		else
+			ret = fdt_setprop_empty(fdt, offset, starfive_vera[i].name);
+
+		if (ret) {
+			pr_err("%s set prop %s fail.\n", __func__, starfive_vera[i].name);
+				break;
+		}
+	}
+}
+
+void spl_fdt_fixup_version_b(void *fdt)
+{
+	u32 phandle;
+	u8 i;
+	int offset;
+	int ret;
+
+	fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model",
+			   "StarFive VisionFive 2 v1.3B");
+
+	/* gmac0 */
+	offset = fdt_path_offset(fdt, "/soc/clock-controller at 17000000");
+	phandle = fdt_get_phandle(fdt, offset);
+	offset = fdt_path_offset(fdt, "/soc/ethernet at 16030000");
+
+	fdt_setprop_u32(fdt, offset, "assigned-clocks", phandle);
+	fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_AONCLK_GMAC0_TX);
+	fdt_setprop_u32(fdt, offset,  "assigned-clock-parents", phandle);
+	fdt_appendprop_u32(fdt, offset,  "assigned-clock-parents",
+			   JH7110_AONCLK_GMAC0_RMII_RTX);
+
+	/* gmac1 */
+	offset = fdt_path_offset(fdt, "/soc/clock-controller at 13020000");
+	phandle = fdt_get_phandle(fdt, offset);
+	offset = fdt_path_offset(fdt, "/soc/ethernet at 16040000");
+
+	fdt_setprop_u32(fdt, offset, "assigned-clocks", phandle);
+	fdt_appendprop_u32(fdt, offset, "assigned-clocks", JH7110_SYSCLK_GMAC1_TX);
+	fdt_setprop_u32(fdt, offset,  "assigned-clock-parents", phandle);
+	fdt_appendprop_u32(fdt, offset,  "assigned-clock-parents",
+			   JH7110_SYSCLK_GMAC1_RMII_RTX);
+
+	for (i = 0; i < ARRAY_SIZE(starfive_verb); i++) {
+		offset = fdt_path_offset(fdt, starfive_verb[i].path);
+
+		if (starfive_verb[i].value)
+			ret = fdt_setprop_u32(fdt, offset,  starfive_verb[i].name,
+					      dectoul(starfive_verb[i].value, NULL));
+		else
+			ret = fdt_setprop_empty(fdt, offset, starfive_verb[i].name);
+
+		if (ret) {
+			pr_err("%s set prop %s fail.\n", __func__, starfive_verb[i].name);
+				break;
+		}
+	}
+}
+
+void spl_perform_fixups(struct spl_image_info *spl_image)
+{
+	u8 version;
+
+	version = get_pcb_revision_from_eeprom();
+	switch (version) {
+	case 'a':
+	case 'A':
+		spl_fdt_fixup_version_a(spl_image->fdt_addr);
+		break;
+
+	case 'b':
+	case 'B':
+	default:
+		spl_fdt_fixup_version_b(spl_image->fdt_addr);
+		break;
+	};
+
+	/* Update the memory size which read form eeprom or DT */
+	fdt_fixup_memory(spl_image->fdt_addr, 0x40000000, gd->ram_size);
+}
 int spl_board_init_f(void)
 {
 	int ret;
-- 
2.17.1