u-boot/arch/arm/mach-apple/board.c
Janne Grunau e53237aa53 arm: apple: Add initial Apple M2 support
Apple's M2 SoC very similar to the M1 and can use the same memory map.
The keyboard/trackpad on the MacBook Pro (13-inch, M2, 2022) uses
"dockchannel" as transport instead of SPI and needs a new driver.
USB, NVMe, uart, framebuffer and watchdog are working with the existing
drivers.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
2022-07-25 09:38:47 -04:00

504 lines
11 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2021 Mark Kettenis <kettenis@openbsd.org>
*/
#include <common.h>
#include <dm.h>
#include <dm/uclass-internal.h>
#include <efi_loader.h>
#include <lmb.h>
#include <asm/armv8/mmu.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/system.h>
DECLARE_GLOBAL_DATA_PTR;
/* Apple M1/M2 */
static struct mm_region t8103_mem_map[] = {
{
/* I/O */
.virt = 0x200000000,
.phys = 0x200000000,
.size = 2UL * 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 = 0x500000000,
.phys = 0x500000000,
.size = SZ_1G,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* I/O */
.virt = 0x680000000,
.phys = 0x680000000,
.size = SZ_512M,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
PTE_BLOCK_NON_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* PCIE */
.virt = 0x6a0000000,
.phys = 0x6a0000000,
.size = SZ_512M,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
PTE_BLOCK_INNER_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* PCIE */
.virt = 0x6c0000000,
.phys = 0x6c0000000,
.size = SZ_1G,
.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRE) |
PTE_BLOCK_INNER_SHARE |
PTE_BLOCK_PXN | PTE_BLOCK_UXN
}, {
/* RAM */
.virt = 0x800000000,
.phys = 0x800000000,
.size = 8UL * 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,
}
};
/* Apple M1 Pro/Max */
static struct mm_region t6000_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
}, {
/* 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,
}
};
/* 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)
{
return 0;
}
int dram_init(void)
{
return fdtdec_setup_mem_size_base();
}
int dram_init_banksize(void)
{
return fdtdec_setup_memory_banksize();
}
extern long fw_dtb_pointer;
void *board_fdt_blob_setup(int *err)
{
/* Return DTB pointer passed by m1n1 */
*err = 0;
return (void *)fw_dtb_pointer;
}
void build_mem_map(void)
{
ofnode node;
fdt_addr_t base;
fdt_size_t size;
int i;
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"))
mem_map = t6000_mem_map;
else if (of_machine_is_compatible("apple,t6002"))
mem_map = t6002_mem_map;
else
panic("Unsupported SoC\n");
/* Find list terminator. */
for (i = 0; mem_map[i].size || mem_map[i].attrs; i++)
;
/* Align RAM mapping to page boundaries */
base = gd->bd->bi_dram[0].start;
size = gd->bd->bi_dram[0].size;
size += (base - ALIGN_DOWN(base, SZ_4K));
base = ALIGN_DOWN(base, SZ_4K);
size = ALIGN(size, SZ_4K);
/* Update RAM mapping */
mem_map[i - 2].virt = base;
mem_map[i - 2].phys = base;
mem_map[i - 2].size = size;
node = ofnode_path("/chosen/framebuffer");
if (!ofnode_valid(node))
return;
base = ofnode_get_addr_size(node, "reg", &size);
if (base == FDT_ADDR_T_NONE)
return;
/* Align framebuffer mapping to page boundaries */
size += (base - ALIGN_DOWN(base, SZ_4K));
base = ALIGN_DOWN(base, SZ_4K);
size = ALIGN(size, SZ_4K);
/* Add framebuffer mapping */
mem_map[i - 1].virt = base;
mem_map[i - 1].phys = base;
mem_map[i - 1].size = size;
}
void enable_caches(void)
{
build_mem_map();
icache_enable();
dcache_enable();
}
u64 get_page_table_size(void)
{
return SZ_256K;
}
#define KERNEL_COMP_SIZE SZ_128M
int board_late_init(void)
{
struct lmb lmb;
u32 status = 0;
lmb_init_and_reserve(&lmb, gd->bd, (void *)gd->fdt_blob);
/* somewhat based on the Linux Kernel boot requirements:
* align by 2M and maximal FDT size 2M
*/
status |= env_set_hex("loadaddr", lmb_alloc(&lmb, SZ_1G, SZ_2M));
status |= env_set_hex("fdt_addr_r", lmb_alloc(&lmb, SZ_2M, SZ_2M));
status |= env_set_hex("kernel_addr_r", lmb_alloc(&lmb, SZ_128M, SZ_2M));
status |= env_set_hex("ramdisk_addr_r", lmb_alloc(&lmb, SZ_1G, SZ_2M));
status |= env_set_hex("kernel_comp_addr_r",
lmb_alloc(&lmb, KERNEL_COMP_SIZE, SZ_2M));
status |= env_set_hex("kernel_comp_size", KERNEL_COMP_SIZE);
status |= env_set_hex("scriptaddr", lmb_alloc(&lmb, SZ_4M, SZ_2M));
status |= env_set_hex("pxefile_addr_r", lmb_alloc(&lmb, SZ_4M, SZ_2M));
if (status)
log_warning("late_init: Failed to set run time variables\n");
return 0;
}
int ft_board_setup(void *blob, struct bd_info *bd)
{
struct udevice *dev;
const char *stdoutname;
int node, ret;
/*
* Modify the "stdout-path" property under "/chosen" to point
* at "/chosen/framebuffer if a keyboard is available and
* we're not running under the m1n1 hypervisor.
* Developers can override this behaviour by dropping
* "vidconsole" from the "stdout" environment variable.
*/
/* EL1 means we're running under the m1n1 hypervisor. */
if (current_el() == 1)
return 0;
ret = uclass_find_device(UCLASS_KEYBOARD, 0, &dev);
if (ret < 0)
return 0;
stdoutname = env_get("stdout");
if (!stdoutname || !strstr(stdoutname, "vidconsole"))
return 0;
/* Make sure we actually have a framebuffer. */
node = fdt_path_offset(blob, "/chosen/framebuffer");
if (node < 0 || !fdtdec_get_is_enabled(blob, node))
return 0;
node = fdt_path_offset(blob, "/chosen");
if (node < 0)
return 0;
fdt_setprop_string(blob, node, "stdout-path", "/chosen/framebuffer");
return 0;
}