[PATCH 1/1] arm: apple: Add M1 Ultra support

Janne Grunau j at jannau.net
Tue Mar 29 13:29:35 CEST 2022


The M1 Ultra consists of two M1 Max dies. The second die's I/O is at
a consistent offset of 0x2000000000.

Signed-off-by: Janne Grunau <j at jannau.net>
---
 arch/arm/mach-apple/board.c | 167 ++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)

diff --git a/arch/arm/mach-apple/board.c b/arch/arm/mach-apple/board.c
index 722dff1f64c5..ffc1301cf57f 100644
--- a/arch/arm/mach-apple/board.c
+++ b/arch/arm/mach-apple/board.c
@@ -177,6 +177,171 @@ static struct mm_region t6000_mem_map[] = {
 	}
 };
 
+/* Apple M1 Ultra */
+
+static struct mm_region t6002_mem_map[] = {
+	{
+		/* I/O */
+		.virt = 0x280000000,
+		.phys = 0x280000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x380000000,
+		.phys = 0x380000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x580000000,
+		.phys = 0x580000000,
+		.size = SZ_512M,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* PCIE */
+		.virt = 0x5a0000000,
+		.phys = 0x5a0000000,
+		.size = SZ_512M,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
+			 PTE_BLOCK_INNER_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* PCIE */
+		.virt = 0x5c0000000,
+		.phys = 0x5c0000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
+			 PTE_BLOCK_INNER_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x700000000,
+		.phys = 0x700000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0xb00000000,
+		.phys = 0xb00000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0xf00000000,
+		.phys = 0xf00000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x1300000000,
+		.phys = 0x1300000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x2280000000,
+		.phys = 0x2280000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x2380000000,
+		.phys = 0x2380000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x2580000000,
+		.phys = 0x2580000000,
+		.size = SZ_512M,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* PCIE */
+		.virt = 0x25a0000000,
+		.phys = 0x25a0000000,
+		.size = SZ_512M,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
+			 PTE_BLOCK_INNER_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* PCIE */
+		.virt = 0x25c0000000,
+		.phys = 0x25c0000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
+			 PTE_BLOCK_INNER_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x2700000000,
+		.phys = 0x2700000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x2b00000000,
+		.phys = 0x2b00000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x2f00000000,
+		.phys = 0x2f00000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* I/O */
+		.virt = 0x3300000000,
+		.phys = 0x3300000000,
+		.size = SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* RAM */
+		.virt = 0x10000000000,
+		.phys = 0x10000000000,
+		.size = 16UL * SZ_1G,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	}, {
+		/* Framebuffer */
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL_NC) |
+			 PTE_BLOCK_INNER_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
 struct mm_region *mem_map;
 
 int board_init(void)
@@ -216,6 +381,8 @@ void build_mem_map(void)
 		mem_map = t6000_mem_map;
 	else if (of_machine_is_compatible("apple,t6001"))
 		mem_map = t6000_mem_map;
+	else if (of_machine_is_compatible("apple,t6002"))
+		mem_map = t6002_mem_map;
 	else
 		panic("Unsupported SoC\n");
 
-- 
2.35.1



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