Merge https://source.denx.de/u-boot/custodians/u-boot-riscvWIP/30May2024

- board: fix support for icicle
- board: support Star64 board
- andes: minor fixes
- riscv: deprecate cache enablement in start.S

9 files changed, 310 insertions, 28 deletions

diff --git a/arch/riscv/cpu/andes/cache.c b/arch/riscv/cpu/andes/cache.c
index 7d3df87..bb57498 100644
--- a/arch/riscv/cpu/andes/cache.c
+++ b/arch/riscv/cpu/andes/cache.c
@@ -43,9 +43,7 @@ static void cache_ops(int (*ops)(struct udevice *dev))
 
 void flush_dcache_all(void)
 {
-#if CONFIG_IS_ENABLED(RISCV_MMODE)
-	csr_write(CSR_MCCTLCOMMAND, CCTL_L1D_WBINVAL_ALL);
-#endif
+	csr_write(CSR_UCCTLCOMMAND, CCTL_L1D_WBINVAL_ALL);
 }
 
 void flush_dcache_range(unsigned long start, unsigned long end)
diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S
index a9e1935..8e58f64 100644
--- a/arch/riscv/cpu/start.S
+++ b/arch/riscv/cpu/start.S
@@ -210,10 +210,6 @@ wait_for_gd_init:
 	bnez	s2, secondary_hart_loop
 #endif
 
-	/* Enable cache */
-	jal	icache_enable
-	jal	dcache_enable
-
 #ifdef CONFIG_DEBUG_UART
 	jal	debug_uart_init
 #endif
diff --git a/arch/riscv/include/asm/arch-andes/csr.h b/arch/riscv/include/asm/arch-andes/csr.h
index 028fd01..7d6104a 100644
--- a/arch/riscv/include/asm/arch-andes/csr.h
+++ b/arch/riscv/include/asm/arch-andes/csr.h
@@ -12,7 +12,7 @@
 
 #define CSR_MCACHE_CTL 0x7ca
 #define CSR_MMISC_CTL 0x7d0
-#define CSR_MCCTLCOMMAND 0x7cc
+#define CSR_UCCTLCOMMAND 0x80c
 
 /* mcache_ctl register */
 
diff --git a/board/microchip/mpfs_icicle/mpfs_icicle.c b/board/microchip/mpfs_icicle/mpfs_icicle.c
index 0f5f829..31523c0 100644
--- a/board/microchip/mpfs_icicle/mpfs_icicle.c
+++ b/board/microchip/mpfs_icicle/mpfs_icicle.c
@@ -73,25 +73,13 @@ int board_early_init_f(void)
 int board_late_init(void)
 {
 	u32 ret;
-	u32 node;
+	int node;
 	u8 idx;
 	u8 device_serial_number[16] = { 0 };
 	unsigned char mac_addr[6];
 	char icicle_mac_addr[20];
 	void *blob = (void *)gd->fdt_blob;
 
-	node = fdt_path_offset(blob, "/soc/ethernet@20112000");
-	if (node < 0) {
-		printf("No ethernet0 path offset\n");
-		return -ENODEV;
-	}
-
-	ret = fdtdec_get_byte_array(blob, node, "local-mac-address", mac_addr, 6);
-	if (ret) {
-		printf("No local-mac-address property for ethernet@20112000\n");
-		return -EINVAL;
-	}
-
 	read_device_serial_number(device_serial_number, 16);
 
 	/* Update MAC address with device serial number */
@@ -102,10 +90,13 @@ int board_late_init(void)
 	mac_addr[4] = device_serial_number[1];
 	mac_addr[5] = device_serial_number[0];
 
-	ret = fdt_setprop(blob, node, "local-mac-address", mac_addr, 6);
-	if (ret) {
-		printf("Error setting local-mac-address property for ethernet@20112000\n");
-		return -ENODEV;
+	node = fdt_path_offset(blob, "/soc/ethernet@20112000");
+	if (node >= 0) {
+		ret = fdt_setprop(blob, node, "local-mac-address", mac_addr, 6);
+		if (ret) {
+			printf("Error setting local-mac-address property for ethernet@20112000\n");
+			return -ENODEV;
+		}
 	}
 
 	icicle_mac_addr[0] = '[';
diff --git a/board/starfive/visionfive2/spl.c b/board/starfive/visionfive2/spl.c
index b555189..b794b73 100644
--- a/board/starfive/visionfive2/spl.c
+++ b/board/starfive/visionfive2/spl.c
@@ -86,6 +86,43 @@ static const struct starfive_vf2_pro starfive_verb[] = {
 		"tx-internal-delay-ps", "0"},
 };
 
+static const struct starfive_vf2_pro star64_pine64[] = {
+	{"/soc/ethernet@16030000", "starfive,tx-use-rgmii-clk", NULL},
+	{"/soc/ethernet@16040000", "starfive,tx-use-rgmii-clk", NULL},
+
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"motorcomm,tx-clk-adj-enabled", NULL},
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"motorcomm,tx-clk-10-inverted", NULL},
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"motorcomm,tx-clk-100-inverted", NULL},
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"motorcomm,tx-clk-1000-inverted", NULL},
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"motorcomm,rx-clk-drv-microamp", "2910"},
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"motorcomm,rx-data-drv-microamp", "2910"},
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"rx-internal-delay-ps", "1900"},
+	{"/soc/ethernet@16030000/mdio/ethernet-phy@0",
+		"tx-internal-delay-ps", "1500"},
+
+	{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
+		"motorcomm,tx-clk-adj-enabled", NULL},
+	{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
+		"motorcomm,tx-clk-10-inverted", NULL},
+	{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
+		"motorcomm,tx-clk-100-inverted", NULL},
+	{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
+		"motorcomm,rx-clk-drv-microamp", "2910"},
+	{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
+		"motorcomm,rx-data-drv-microamp", "2910"},
+	{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
+		"rx-internal-delay-ps", "0"},
+	{"/soc/ethernet@16040000/mdio/ethernet-phy@1",
+		"tx-internal-delay-ps", "300"},
+};
+
 void spl_fdt_fixup_mars(void *fdt)
 {
 	static const char compat[] = "milkv,mars\0starfive,jh7110";
@@ -250,6 +287,56 @@ void spl_fdt_fixup_version_b(void *fdt)
 	}
 }
 
+void spl_fdt_fixup_star64(void *fdt)
+{
+	static const char compat[] = "pine64,star64\0starfive,jh7110";
+	u32 phandle;
+	u8 i;
+	int offset;
+	int ret;
+
+	fdt_setprop(fdt, fdt_path_offset(fdt, "/"), "compatible", compat, sizeof(compat));
+	fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model",
+			   "Pine64 Star64");
+
+	/* gmac0 */
+	offset = fdt_path_offset(fdt, "/soc/clock-controller@17000000");
+	phandle = fdt_get_phandle(fdt, offset);
+	offset = fdt_path_offset(fdt, "/soc/ethernet@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@13020000");
+	phandle = fdt_get_phandle(fdt, offset);
+	offset = fdt_path_offset(fdt, "/soc/ethernet@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(star64_pine64); i++) {
+		offset = fdt_path_offset(fdt, star64_pine64[i].path);
+
+		if (star64_pine64[i].value)
+			ret = fdt_setprop_u32(fdt, offset,  star64_pine64[i].name,
+					      dectoul(star64_pine64[i].value, NULL));
+		else
+			ret = fdt_setprop_empty(fdt, offset, star64_pine64[i].name);
+
+		if (ret) {
+			pr_err("%s set prop %s fail.\n", __func__, star64_pine64[i].name);
+				break;
+		}
+	}
+}
+
 void spl_perform_fixups(struct spl_image_info *spl_image)
 {
 	u8 version;
@@ -278,6 +365,8 @@ void spl_perform_fixups(struct spl_image_info *spl_image)
 			spl_fdt_fixup_version_b(spl_image->fdt_addr);
 		break;
 		};
+	} else if (!strncmp(product_id, "STAR64", 6)) {
+		spl_fdt_fixup_star64(spl_image->fdt_addr);
 	} else {
 		pr_err("Unknown product %s\n", product_id);
 	};
diff --git a/board/starfive/visionfive2/starfive_visionfive2.c b/board/starfive/visionfive2/starfive_visionfive2.c
index 6be5348..f611460 100644
--- a/board/starfive/visionfive2/starfive_visionfive2.c
+++ b/board/starfive/visionfive2/starfive_visionfive2.c
@@ -27,6 +27,8 @@ DECLARE_GLOBAL_DATA_PTR;
 	"starfive/jh7110-starfive-visionfive-2-v1.2a.dtb"
 #define FDTFILE_VISIONFIVE2_1_3B \
 	"starfive/jh7110-starfive-visionfive-2-v1.3b.dtb"
+#define FDTFILE_PINE64_STAR64 \
+	"starfive/jh7110-pine64-star64.dtb"
 
 /* enable U74-mc hart1~hart4 prefetcher */
 static void enable_prefetcher(void)
@@ -87,6 +89,8 @@ static void set_fdtfile(void)
 			fdtfile = FDTFILE_VISIONFIVE2_1_3B;
 			break;
 		}
+	} else if (!strncmp(product_id, "STAR64", 6)) {
+		fdtfile = FDTFILE_PINE64_STAR64;
 	} else {
 		log_err("Unknown product\n");
 		return;
diff --git a/doc/board/starfive/index.rst b/doc/board/starfive/index.rst
index d369b98..72ab6dd 100644
--- a/doc/board/starfive/index.rst
+++ b/doc/board/starfive/index.rst
@@ -8,4 +8,5 @@ StarFive
 
    milk-v_mars
    milk-v_mars_cm
+   pine64_star64
    visionfive2
diff --git a/doc/board/starfive/pine64_star64.rst b/doc/board/starfive/pine64_star64.rst
new file mode 100644
index 0000000..52e9a90
--- /dev/null
+++ b/doc/board/starfive/pine64_star64.rst
@@ -0,0 +1,201 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Pine64 Star64
+=============
+
+U-Boot for the Star64 uses the same U-Boot binaries as the VisionFive 2 board.
+In U-Boot SPL the actual board is detected and the device-tree patched
+accordingly.
+
+Building
+~~~~~~~~
+
+1. Add the RISC-V toolchain to your PATH.
+2. Setup ARCH & cross compilation environment variable:
+
+.. code-block:: none
+
+   export CROSS_COMPILE=<riscv64 toolchain prefix>
+
+The M-mode software OpenSBI provides the supervisor binary interface (SBI) and
+is responsible for the switch to S-Mode. It is a prerequisite to build U-Boot.
+Support for the JH7110 was introduced in OpenSBI 1.2. It is recommended to use
+a current release.
+
+.. code-block:: console
+
+	git clone https://github.com/riscv/opensbi.git
+	cd opensbi
+	make PLATFORM=generic FW_TEXT_START=0x40000000
+
+Now build the U-Boot SPL and U-Boot proper.
+
+.. code-block:: console
+
+	cd <U-Boot-dir>
+	make starfive_visionfive2_defconfig
+	make OPENSBI=$(opensbi_dir)/build/platform/generic/firmware/fw_dynamic.bin
+
+This will generate the U-Boot SPL image (spl/u-boot-spl.bin.normal.out) as well
+as the FIT image (u-boot.itb) with OpenSBI and U-Boot.
+
+Device-tree selection
+~~~~~~~~~~~~~~~~~~~~~
+
+U-Boot will set variable $fdtfile to starfive/jh7110-pine64-star64.dtb.
+
+To overrule this selection the variable can be set manually and saved in the
+environment
+
+::
+
+    env set fdtfile my_device-tree.dtb
+    env save
+
+or the configuration variable CONFIG_DEFAULT_FDT_FILE can be used to set to
+provide a default value.
+
+Boot source selection
+~~~~~~~~~~~~~~~~~~~~~
+
+Boot mode is selected by an MSEL-DIP marked S1804 and GPIO_0 position adjacent
+to the 40pin GPIO header. ON/ONKE and number markings of the MSEL-DIP are
+misleading; Instead refer to the ``L`` (0) and ``H`` (1) silkscreen for
+accurate selection.
+
++ (QSPI) Flash: 00
++ SD: 01
++ EMMC: 10
++ UART: 11
+
+Preparing the SD-Card
+~~~~~~~~~~~~~~~~~~~~~
+
+The device firmware loads U-Boot SPL (u-boot-spl.bin.normal.out) from the
+partition with type GUID 2E54B353-1271-4842-806F-E436D6AF6985. You are free
+to choose any partition number.
+
+With the default configuration U-Boot SPL loads the U-Boot FIT image
+(u-boot.itb) from partition 2 (CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=0x2).
+When formatting it is recommended to use GUID
+BC13C2FF-59E6-4262-A352-B275FD6F7172 for this partition.
+
+The FIT image (u-boot.itb) is a combination of OpenSBI's fw_dynamic.bin,
+u-boot-nodtb.bin and the device tree blob.
+
+Format the SD card (make sure the disk has GPT, otherwise use gdisk to switch)
+
+.. code-block:: bash
+
+	sudo sgdisk --clear \
+	  --set-alignment=2 \
+	  --new=1:4096:8191 --change-name=1:spl --typecode=1:2E54B353-1271-4842-806F-E436D6AF6985\
+	  --new=2:8192:16383 --change-name=2:uboot --typecode=2:BC13C2FF-59E6-4262-A352-B275FD6F7172  \
+	  --new=3:16384:1654784 --change-name=3:system --typecode=3:EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 \
+	  /dev/sdb
+
+Copy U-Boot to the SD card
+
+.. code-block:: bash
+
+	sudo dd if=u-boot-spl.bin.normal.out of=/dev/sdb1
+	sudo dd if=u-boot.itb of=/dev/sdb2
+
+	sudo mount /dev/sdb3 /mnt/
+	sudo cp u-boot-spl.bin.normal.out /mnt/
+	sudo cp u-boot.itb /mnt/
+	sudo cp Image.gz /mnt/
+	sudo cp initramfs.cpio.gz /mnt/
+	sudo cp jh7110-starfive-visionfive-2.dtb /mnt/
+	sudo umount /mnt
+
+Booting
+~~~~~~~
+
+Once you plugin the sdcard and power up, you should see the U-Boot prompt.
+
+Serial Number and MAC address issues
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+U-Boot requires valid EEPROM data to determine which board-specific fix-up to
+apply at runtime. This affects the size of memory initialized, network mac
+address numbering, and tuning of the network PHYs.
+
+The Star64 does not currently ship with unique serial numbers per-device.
+Devices follow a pattern where the last mac address bytes are a sum of 0x7558
+and the serial number (lower port mac0), or a sum of 0x7559 and the serial
+number (upper port mac1).
+
+As tested there are several 4gb model units where the serial number and network
+mac addresses collide with other devices (serial
+``STAR64V1-2310-D004E000-00000005``, MACs ``6c:cf:39:00:75:61``,
+``6c:cf:39:00:75:62``)
+
+Some early Star64 boards shipped with an uninitialized EEPROM and no write
+protect pull-up resistor in place. Later units of all 4gb and 8gb models
+sharing the same serial number in EEPROM data will have this problem that the
+network mac addresses are alike between different models and this may be
+corrected by defeating the write protect resistor to write new values. As an
+alternative to this, it may be worked around by overriding the mac addresses
+via U-Boot environment variables.
+
+It is required for any unit having uninitialized EEPROM and recommended for
+all later Star64 4gb model units (not properly serialized) to have decided on a
+new 6-byte serial number. This serial number should be high enough to
+avoid collision with other JH7110 boards and low enough not to overflow i.e.
+between ``cafe00`` and ``f00d00``.
+
+Update EEPROM values
+^^^^^^^^^^^^^^^^^^^^
+
+1. Prepare EEPROM data in memory
+
+::
+
+	## When there is no error to load existing data:
+	mac read_eeprom
+
+	## When there is an error to load non-existing data:
+	# "DRAM:  Not a StarFive EEPROM data format - magic error"
+	mac initialize
+
+2. Set Star64 values
+
+::
+
+	## Common values
+	mac vendor PINE64
+	mac pcb_revision c1
+	mac bom_revision A
+
+	## Device-specific values
+	# Year 2023 week 10 production date, 8GB DRAM, optional eMMC, serial cdef01
+	mac product_id STAR64V1-2310-D008E000-00cdef01
+
+	# Last three bytes mac0: 0x7558 + serial number 0xcdef01
+	mac mac0_address 6c:cf:39:ce:64:59
+
+	# Last three bytes mac1: 0x7559 + serial number 0xcdef01
+	mac mac1_address 6c:cf:39:ce:64:5a
+
+3. Defeat write-protect pull-up resistor (if installed) and write to EEPROM
+
+::
+
+	mac write_eeprom
+
+Set Variables in U-Boot
+^^^^^^^^^^^^^^^^^^^^^^^
+
+.. note:: Changing just the serial number will not alter your MAC address
+
+The MAC addresses may be "set" as follows by writing as a custom config to SPI
+(Change the last 3 bytes of MAC addreses as appropriate):
+
+::
+
+	env set serial# STAR64V1-2310-D008E000-00cdef01
+	env set ethaddr 6c:cf:39:ce:64:59
+	env set eth1addr 6c:cf:39:ce:64:5a
+	env save
+	reset
diff --git a/drivers/cache/cache-andes-l2.c b/drivers/cache/cache-andes-l2.c
index 45d29f2..bc6f7ed 100644
--- a/drivers/cache/cache-andes-l2.c
+++ b/drivers/cache/cache-andes-l2.c
@@ -30,7 +30,7 @@ struct l2cache {
 	volatile u64	cctl_command2;
 	volatile u64	cctl_access_line2;
 	volatile u64	cctl_command3;
-	volatile u64	cctl_access_line4;
+	volatile u64	cctl_access_line3;
 	volatile u64	cctl_status;
 };
 
@@ -97,13 +97,15 @@ static int andes_l2_disable(struct udevice *dev)
 	struct andes_l2_plat *plat = dev_get_plat(dev);
 	volatile struct l2cache *regs = plat->regs;
 	u8 hart = gd->arch.boot_hart;
+
 	void __iomem *cctlcmd = (void __iomem *)CCTL_CMD_REG(regs, hart);
+	void __iomem *cctlstatus = (void __iomem *)CCTL_STATUS_REG(regs, hart);
 
 	if ((regs) && (readl(&regs->control) & L2_ENABLE)) {
 		writel(L2_WBINVAL_ALL, cctlcmd);
 
-		while ((readl(&regs->cctl_status) & CCTL_STATUS_MSK(hart))) {
-			if ((readl(&regs->cctl_status) & CCTL_STATUS_ILLEGAL(hart))) {
+		while ((readl(cctlstatus) & CCTL_STATUS_MSK(hart))) {
+			if ((readl(cctlstatus) & CCTL_STATUS_ILLEGAL(hart))) {
 				printf("L2 flush illegal! hanging...");
 				hang();
 			}