mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-15 01:17:39 +00:00
049704f808
Commit37dc958947("global_data.h: Change ram_top type to phys_addr_t") changed type of ram_top member from ulong to phys_addr_t but did not changed types in board_get_usable_ram_top() function which returns value for ram_top. So change ulong to phys_addr_t type also in board_get_usable_ram_top() signature and implementations. Fixes:37dc958947("global_data.h: Change ram_top type to phys_addr_t") Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org>
522 lines
10 KiB
C
522 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* (C) Copyright 2012-2016 Stephen Warren
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <config.h>
|
|
#include <dm.h>
|
|
#include <env.h>
|
|
#include <efi_loader.h>
|
|
#include <fdt_support.h>
|
|
#include <fdt_simplefb.h>
|
|
#include <init.h>
|
|
#include <lcd.h>
|
|
#include <memalign.h>
|
|
#include <mmc.h>
|
|
#include <asm/gpio.h>
|
|
#include <asm/arch/mbox.h>
|
|
#include <asm/arch/msg.h>
|
|
#include <asm/arch/sdhci.h>
|
|
#include <asm/global_data.h>
|
|
#include <dm/platform_data/serial_bcm283x_mu.h>
|
|
#ifdef CONFIG_ARM64
|
|
#include <asm/armv8/mmu.h>
|
|
#endif
|
|
#include <watchdog.h>
|
|
#include <dm/pinctrl.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/* Assigned in lowlevel_init.S
|
|
* Push the variable into the .data section so that it
|
|
* does not get cleared later.
|
|
*/
|
|
unsigned long __section(".data") fw_dtb_pointer;
|
|
|
|
/* TODO(sjg@chromium.org): Move these to the msg.c file */
|
|
struct msg_get_arm_mem {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_get_arm_mem get_arm_mem;
|
|
u32 end_tag;
|
|
};
|
|
|
|
struct msg_get_board_rev {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_get_board_rev get_board_rev;
|
|
u32 end_tag;
|
|
};
|
|
|
|
struct msg_get_board_serial {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_get_board_serial get_board_serial;
|
|
u32 end_tag;
|
|
};
|
|
|
|
struct msg_get_mac_address {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_get_mac_address get_mac_address;
|
|
u32 end_tag;
|
|
};
|
|
|
|
struct msg_get_clock_rate {
|
|
struct bcm2835_mbox_hdr hdr;
|
|
struct bcm2835_mbox_tag_get_clock_rate get_clock_rate;
|
|
u32 end_tag;
|
|
};
|
|
|
|
#ifdef CONFIG_ARM64
|
|
#define DTB_DIR "broadcom/"
|
|
#else
|
|
#define DTB_DIR ""
|
|
#endif
|
|
|
|
/*
|
|
* https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-revision-codes
|
|
*/
|
|
struct rpi_model {
|
|
const char *name;
|
|
const char *fdtfile;
|
|
bool has_onboard_eth;
|
|
};
|
|
|
|
static const struct rpi_model rpi_model_unknown = {
|
|
"Unknown model",
|
|
DTB_DIR "bcm283x-rpi-other.dtb",
|
|
false,
|
|
};
|
|
|
|
static const struct rpi_model rpi_models_new_scheme[] = {
|
|
[0x0] = {
|
|
"Model A",
|
|
DTB_DIR "bcm2835-rpi-a.dtb",
|
|
false,
|
|
},
|
|
[0x1] = {
|
|
"Model B",
|
|
DTB_DIR "bcm2835-rpi-b.dtb",
|
|
true,
|
|
},
|
|
[0x2] = {
|
|
"Model A+",
|
|
DTB_DIR "bcm2835-rpi-a-plus.dtb",
|
|
false,
|
|
},
|
|
[0x3] = {
|
|
"Model B+",
|
|
DTB_DIR "bcm2835-rpi-b-plus.dtb",
|
|
true,
|
|
},
|
|
[0x4] = {
|
|
"2 Model B",
|
|
DTB_DIR "bcm2836-rpi-2-b.dtb",
|
|
true,
|
|
},
|
|
[0x6] = {
|
|
"Compute Module",
|
|
DTB_DIR "bcm2835-rpi-cm.dtb",
|
|
false,
|
|
},
|
|
[0x8] = {
|
|
"3 Model B",
|
|
DTB_DIR "bcm2837-rpi-3-b.dtb",
|
|
true,
|
|
},
|
|
[0x9] = {
|
|
"Zero",
|
|
DTB_DIR "bcm2835-rpi-zero.dtb",
|
|
false,
|
|
},
|
|
[0xA] = {
|
|
"Compute Module 3",
|
|
DTB_DIR "bcm2837-rpi-cm3.dtb",
|
|
false,
|
|
},
|
|
[0xC] = {
|
|
"Zero W",
|
|
DTB_DIR "bcm2835-rpi-zero-w.dtb",
|
|
false,
|
|
},
|
|
[0xD] = {
|
|
"3 Model B+",
|
|
DTB_DIR "bcm2837-rpi-3-b-plus.dtb",
|
|
true,
|
|
},
|
|
[0xE] = {
|
|
"3 Model A+",
|
|
DTB_DIR "bcm2837-rpi-3-a-plus.dtb",
|
|
false,
|
|
},
|
|
[0x10] = {
|
|
"Compute Module 3+",
|
|
DTB_DIR "bcm2837-rpi-cm3.dtb",
|
|
false,
|
|
},
|
|
[0x11] = {
|
|
"4 Model B",
|
|
DTB_DIR "bcm2711-rpi-4-b.dtb",
|
|
true,
|
|
},
|
|
[0x12] = {
|
|
"Zero 2 W",
|
|
DTB_DIR "bcm2837-rpi-zero-2.dtb",
|
|
false,
|
|
},
|
|
[0x13] = {
|
|
"400",
|
|
DTB_DIR "bcm2711-rpi-400.dtb",
|
|
true,
|
|
},
|
|
[0x14] = {
|
|
"Compute Module 4",
|
|
DTB_DIR "bcm2711-rpi-cm4.dtb",
|
|
true,
|
|
},
|
|
};
|
|
|
|
static const struct rpi_model rpi_models_old_scheme[] = {
|
|
[0x2] = {
|
|
"Model B",
|
|
DTB_DIR "bcm2835-rpi-b.dtb",
|
|
true,
|
|
},
|
|
[0x3] = {
|
|
"Model B",
|
|
DTB_DIR "bcm2835-rpi-b.dtb",
|
|
true,
|
|
},
|
|
[0x4] = {
|
|
"Model B rev2",
|
|
DTB_DIR "bcm2835-rpi-b-rev2.dtb",
|
|
true,
|
|
},
|
|
[0x5] = {
|
|
"Model B rev2",
|
|
DTB_DIR "bcm2835-rpi-b-rev2.dtb",
|
|
true,
|
|
},
|
|
[0x6] = {
|
|
"Model B rev2",
|
|
DTB_DIR "bcm2835-rpi-b-rev2.dtb",
|
|
true,
|
|
},
|
|
[0x7] = {
|
|
"Model A",
|
|
DTB_DIR "bcm2835-rpi-a.dtb",
|
|
false,
|
|
},
|
|
[0x8] = {
|
|
"Model A",
|
|
DTB_DIR "bcm2835-rpi-a.dtb",
|
|
false,
|
|
},
|
|
[0x9] = {
|
|
"Model A",
|
|
DTB_DIR "bcm2835-rpi-a.dtb",
|
|
false,
|
|
},
|
|
[0xd] = {
|
|
"Model B rev2",
|
|
DTB_DIR "bcm2835-rpi-b-rev2.dtb",
|
|
true,
|
|
},
|
|
[0xe] = {
|
|
"Model B rev2",
|
|
DTB_DIR "bcm2835-rpi-b-rev2.dtb",
|
|
true,
|
|
},
|
|
[0xf] = {
|
|
"Model B rev2",
|
|
DTB_DIR "bcm2835-rpi-b-rev2.dtb",
|
|
true,
|
|
},
|
|
[0x10] = {
|
|
"Model B+",
|
|
DTB_DIR "bcm2835-rpi-b-plus.dtb",
|
|
true,
|
|
},
|
|
[0x11] = {
|
|
"Compute Module",
|
|
DTB_DIR "bcm2835-rpi-cm.dtb",
|
|
false,
|
|
},
|
|
[0x12] = {
|
|
"Model A+",
|
|
DTB_DIR "bcm2835-rpi-a-plus.dtb",
|
|
false,
|
|
},
|
|
[0x13] = {
|
|
"Model B+",
|
|
DTB_DIR "bcm2835-rpi-b-plus.dtb",
|
|
true,
|
|
},
|
|
[0x14] = {
|
|
"Compute Module",
|
|
DTB_DIR "bcm2835-rpi-cm.dtb",
|
|
false,
|
|
},
|
|
[0x15] = {
|
|
"Model A+",
|
|
DTB_DIR "bcm2835-rpi-a-plus.dtb",
|
|
false,
|
|
},
|
|
};
|
|
|
|
static uint32_t revision;
|
|
static uint32_t rev_scheme;
|
|
static uint32_t rev_type;
|
|
static const struct rpi_model *model;
|
|
|
|
int dram_init(void)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_arm_mem, msg, 1);
|
|
int ret;
|
|
|
|
BCM2835_MBOX_INIT_HDR(msg);
|
|
BCM2835_MBOX_INIT_TAG(&msg->get_arm_mem, GET_ARM_MEMORY);
|
|
|
|
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
|
|
if (ret) {
|
|
printf("bcm2835: Could not query ARM memory size\n");
|
|
return -1;
|
|
}
|
|
|
|
gd->ram_size = msg->get_arm_mem.body.resp.mem_size;
|
|
|
|
/*
|
|
* In some configurations the memory size returned by VideoCore
|
|
* is not aligned to the section size, what is mandatory for
|
|
* the u-boot's memory setup.
|
|
*/
|
|
gd->ram_size &= ~MMU_SECTION_SIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF_BOARD
|
|
int dram_init_banksize(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = fdtdec_setup_memory_banksize();
|
|
if (ret)
|
|
return ret;
|
|
|
|
return fdtdec_setup_mem_size_base();
|
|
}
|
|
#endif
|
|
|
|
static void set_fdtfile(void)
|
|
{
|
|
const char *fdtfile;
|
|
|
|
if (env_get("fdtfile"))
|
|
return;
|
|
|
|
fdtfile = model->fdtfile;
|
|
env_set("fdtfile", fdtfile);
|
|
}
|
|
|
|
/*
|
|
* If the firmware provided a valid FDT at boot time, let's expose it in
|
|
* ${fdt_addr} so it may be passed unmodified to the kernel.
|
|
*/
|
|
static void set_fdt_addr(void)
|
|
{
|
|
if (env_get("fdt_addr"))
|
|
return;
|
|
|
|
if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC)
|
|
return;
|
|
|
|
env_set_hex("fdt_addr", fw_dtb_pointer);
|
|
}
|
|
|
|
/*
|
|
* Prevent relocation from stomping on a firmware provided FDT blob.
|
|
*/
|
|
phys_size_t board_get_usable_ram_top(phys_size_t total_size)
|
|
{
|
|
if ((gd->ram_top - fw_dtb_pointer) > SZ_64M)
|
|
return gd->ram_top;
|
|
return fw_dtb_pointer & ~0xffff;
|
|
}
|
|
|
|
static void set_usbethaddr(void)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_mac_address, msg, 1);
|
|
int ret;
|
|
|
|
if (!model->has_onboard_eth)
|
|
return;
|
|
|
|
if (env_get("usbethaddr"))
|
|
return;
|
|
|
|
BCM2835_MBOX_INIT_HDR(msg);
|
|
BCM2835_MBOX_INIT_TAG(&msg->get_mac_address, GET_MAC_ADDRESS);
|
|
|
|
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
|
|
if (ret) {
|
|
printf("bcm2835: Could not query MAC address\n");
|
|
/* Ignore error; not critical */
|
|
return;
|
|
}
|
|
|
|
eth_env_set_enetaddr("usbethaddr", msg->get_mac_address.body.resp.mac);
|
|
|
|
if (!env_get("ethaddr"))
|
|
env_set("ethaddr", env_get("usbethaddr"));
|
|
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
|
|
static void set_board_info(void)
|
|
{
|
|
char s[11];
|
|
|
|
snprintf(s, sizeof(s), "0x%X", revision);
|
|
env_set("board_revision", s);
|
|
snprintf(s, sizeof(s), "%d", rev_scheme);
|
|
env_set("board_rev_scheme", s);
|
|
/* Can't rename this to board_rev_type since it's an ABI for scripts */
|
|
snprintf(s, sizeof(s), "0x%X", rev_type);
|
|
env_set("board_rev", s);
|
|
env_set("board_name", model->name);
|
|
}
|
|
#endif /* CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG */
|
|
|
|
static void set_serial_number(void)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_board_serial, msg, 1);
|
|
int ret;
|
|
char serial_string[17] = { 0 };
|
|
|
|
if (env_get("serial#"))
|
|
return;
|
|
|
|
BCM2835_MBOX_INIT_HDR(msg);
|
|
BCM2835_MBOX_INIT_TAG_NO_REQ(&msg->get_board_serial, GET_BOARD_SERIAL);
|
|
|
|
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
|
|
if (ret) {
|
|
printf("bcm2835: Could not query board serial\n");
|
|
/* Ignore error; not critical */
|
|
return;
|
|
}
|
|
|
|
snprintf(serial_string, sizeof(serial_string), "%016llx",
|
|
msg->get_board_serial.body.resp.serial);
|
|
env_set("serial#", serial_string);
|
|
}
|
|
|
|
int misc_init_r(void)
|
|
{
|
|
set_fdt_addr();
|
|
set_fdtfile();
|
|
set_usbethaddr();
|
|
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
|
|
set_board_info();
|
|
#endif
|
|
set_serial_number();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void get_board_revision(void)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(struct msg_get_board_rev, msg, 1);
|
|
int ret;
|
|
const struct rpi_model *models;
|
|
uint32_t models_count;
|
|
|
|
BCM2835_MBOX_INIT_HDR(msg);
|
|
BCM2835_MBOX_INIT_TAG(&msg->get_board_rev, GET_BOARD_REV);
|
|
|
|
ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
|
|
if (ret) {
|
|
printf("bcm2835: Could not query board revision\n");
|
|
/* Ignore error; not critical */
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* For details of old-vs-new scheme, see:
|
|
* https://github.com/pimoroni/RPi.version/blob/master/RPi/version.py
|
|
* http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=99293&p=690282
|
|
* (a few posts down)
|
|
*
|
|
* For the RPi 1, bit 24 is the "warranty bit", so we mask off just the
|
|
* lower byte to use as the board rev:
|
|
* http://www.raspberrypi.org/forums/viewtopic.php?f=63&t=98367&start=250
|
|
* http://www.raspberrypi.org/forums/viewtopic.php?f=31&t=20594
|
|
*/
|
|
revision = msg->get_board_rev.body.resp.rev;
|
|
if (revision & 0x800000) {
|
|
rev_scheme = 1;
|
|
rev_type = (revision >> 4) & 0xff;
|
|
models = rpi_models_new_scheme;
|
|
models_count = ARRAY_SIZE(rpi_models_new_scheme);
|
|
} else {
|
|
rev_scheme = 0;
|
|
rev_type = revision & 0xff;
|
|
models = rpi_models_old_scheme;
|
|
models_count = ARRAY_SIZE(rpi_models_old_scheme);
|
|
}
|
|
if (rev_type >= models_count) {
|
|
printf("RPI: Board rev 0x%x outside known range\n", rev_type);
|
|
model = &rpi_model_unknown;
|
|
} else if (!models[rev_type].name) {
|
|
printf("RPI: Board rev 0x%x unknown\n", rev_type);
|
|
model = &rpi_model_unknown;
|
|
} else {
|
|
model = &models[rev_type];
|
|
}
|
|
|
|
printf("RPI %s (0x%x)\n", model->name, revision);
|
|
}
|
|
|
|
int board_init(void)
|
|
{
|
|
#ifdef CONFIG_HW_WATCHDOG
|
|
hw_watchdog_init();
|
|
#endif
|
|
|
|
get_board_revision();
|
|
|
|
gd->bd->bi_boot_params = 0x100;
|
|
|
|
return bcm2835_power_on_module(BCM2835_MBOX_POWER_DEVID_USB_HCD);
|
|
}
|
|
|
|
/*
|
|
* If the firmware passed a device tree use it for U-Boot.
|
|
*/
|
|
void *board_fdt_blob_setup(int *err)
|
|
{
|
|
*err = 0;
|
|
if (fdt_magic(fw_dtb_pointer) != FDT_MAGIC) {
|
|
*err = -ENXIO;
|
|
return NULL;
|
|
}
|
|
|
|
return (void *)fw_dtb_pointer;
|
|
}
|
|
|
|
int ft_board_setup(void *blob, struct bd_info *bd)
|
|
{
|
|
int node;
|
|
|
|
node = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
|
|
if (node < 0)
|
|
fdt_simplefb_add_node(blob);
|
|
|
|
#ifdef CONFIG_EFI_LOADER
|
|
/* Reserve the spin table */
|
|
efi_add_memory_map(0, CONFIG_RPI_EFI_NR_SPIN_PAGES << EFI_PAGE_SHIFT,
|
|
EFI_RESERVED_MEMORY_TYPE);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|