arm: apple: Add initial Apple M2 Pro/Max support

Apple's M2 Pro/Max SoC are somewhat similar to the M1 Pro/Max but
need a tweaked memory map.  USB, NVMe, UART and WDT are working
with the existing drivers.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>

diff --git a/arch/arm/mach-apple/board.c b/arch/arm/mach-apple/board.c
index 16046423128c0b14d254e628ac3125ee368a7ce9..d501948118433b52d44ffe06916b517cc3e30da2 100644 (file)
--- a/arch/arm/mach-apple/board.c
+++ b/arch/arm/mach-apple/board.c
@@ -343,6 +343,107 @@ static struct mm_region t6002_mem_map[] = {
        }
 };
 
+/* Apple M2 Pro/Max */
+
+static struct mm_region t6020_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 = 0x340000000,
+               .phys = 0x340000000,
+               .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
+       }, {
+               /* 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)
@@ -379,12 +480,14 @@ void build_mem_map(void)
        if (of_machine_is_compatible("apple,t8103") ||
            of_machine_is_compatible("apple,t8112"))
                mem_map = t8103_mem_map;
-       else if (of_machine_is_compatible("apple,t6000"))
-               mem_map = t6000_mem_map;
-       else if (of_machine_is_compatible("apple,t6001"))
+       else if (of_machine_is_compatible("apple,t6000") ||
+                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 if (of_machine_is_compatible("apple,t6020") ||
+                of_machine_is_compatible("apple,t6021"))
+               mem_map = t6020_mem_map;
        else
                panic("Unsupported SoC\n");