qemu/hw/arm/aspeed.c

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/*
* OpenPOWER Palmetto BMC
*
* Andrew Jeffery <andrew@aj.id.au>
*
* Copyright 2016 IBM Corp.
*
* This code is licensed under the GPL version 2 or later. See
* the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
2016-03-14 11:01:28 +03:00
#include "qapi/error.h"
#include "cpu.h"
#include "exec/address-spaces.h"
#include "hw/arm/boot.h"
#include "hw/arm/aspeed.h"
#include "hw/arm/aspeed_soc.h"
#include "hw/boards.h"
#include "hw/i2c/smbus_eeprom.h"
#include "hw/misc/pca9552.h"
#include "hw/misc/tmp105.h"
#include "hw/qdev-properties.h"
#include "qemu/log.h"
#include "sysemu/block-backend.h"
#include "sysemu/sysemu.h"
#include "hw/loader.h"
#include "qemu/error-report.h"
#include "qemu/units.h"
static struct arm_boot_info aspeed_board_binfo = {
.board_id = -1, /* device-tree-only board */
};
struct AspeedBoardState {
AspeedSoCState soc;
MemoryRegion ram_container;
MemoryRegion max_ram;
};
/* Palmetto hardware value: 0x120CE416 */
#define PALMETTO_BMC_HW_STRAP1 ( \
SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
SCU_AST2400_HW_STRAP_ACPI_DIS | \
SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
SCU_HW_STRAP_VGA_CLASS_CODE | \
SCU_HW_STRAP_LPC_RESET_PIN | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
SCU_HW_STRAP_SPI_WIDTH | \
SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
/* AST2500 evb hardware value: 0xF100C2E6 */
#define AST2500_EVB_HW_STRAP1 (( \
AST2500_HW_STRAP1_DEFAULTS | \
SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
SCU_AST2500_HW_STRAP_UART_DEBUG | \
SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
SCU_HW_STRAP_MAC1_RGMII | \
SCU_HW_STRAP_MAC0_RGMII) & \
~SCU_HW_STRAP_2ND_BOOT_WDT)
/* Romulus hardware value: 0xF10AD206 */
#define ROMULUS_BMC_HW_STRAP1 ( \
AST2500_HW_STRAP1_DEFAULTS | \
SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
SCU_AST2500_HW_STRAP_UART_DEBUG | \
SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
/* Sonorapass hardware value: 0xF100D216 */
#define SONORAPASS_BMC_HW_STRAP1 ( \
SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
SCU_AST2500_HW_STRAP_UART_DEBUG | \
SCU_AST2500_HW_STRAP_RESERVED28 | \
SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
SCU_HW_STRAP_VGA_CLASS_CODE | \
SCU_HW_STRAP_LPC_RESET_PIN | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER) | \
SCU_AST2500_HW_STRAP_SET_AXI_AHB_RATIO(AXI_AHB_RATIO_2_1) | \
SCU_HW_STRAP_VGA_BIOS_ROM | \
SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
SCU_AST2500_HW_STRAP_RESERVED1)
/* Swift hardware value: 0xF11AD206 */
#define SWIFT_BMC_HW_STRAP1 ( \
AST2500_HW_STRAP1_DEFAULTS | \
SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
SCU_AST2500_HW_STRAP_UART_DEBUG | \
SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
SCU_H_PLL_BYPASS_EN | \
SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
/* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
#define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
/* AST2600 evb hardware value */
#define AST2600_EVB_HW_STRAP1 0x000000C0
#define AST2600_EVB_HW_STRAP2 0x00000003
/* Tacoma hardware value */
#define TACOMA_BMC_HW_STRAP1 0x00000000
#define TACOMA_BMC_HW_STRAP2 0x00000040
/*
* The max ram region is for firmwares that scan the address space
* with load/store to guess how much RAM the SoC has.
*/
static uint64_t max_ram_read(void *opaque, hwaddr offset, unsigned size)
{
return 0;
}
static void max_ram_write(void *opaque, hwaddr offset, uint64_t value,
unsigned size)
{
/* Discard writes */
}
static const MemoryRegionOps max_ram_ops = {
.read = max_ram_read,
.write = max_ram_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
aspeed: Add boot stub for smp booting This is a boot stub that is similar to the code u-boot runs, allowing the kernel to boot the secondary CPU. u-boot works as follows: 1. Initialises the SMP mailbox area in the SCU at 0x1e6e2180 with default values 2. Copies a stub named 'mailbox_insn' from flash to the SCU, just above the mailbox area 3. Sets AST_SMP_MBOX_FIELD_READY to a magic value to indicate the secondary can begin execution from the stub 4. The stub waits until the AST_SMP_MBOX_FIELD_GOSIGN register is set to a magic value 5. Jumps to the address in AST_SMP_MBOX_FIELD_ENTRY, starting Linux Linux indicates it is ready by writing the address of its entrypoint function to AST_SMP_MBOX_FIELD_ENTRY and the 'go' magic number to AST_SMP_MBOX_FIELD_GOSIGN. The secondary CPU sees this at step 4 and breaks out of it's loop. To be compatible, a fixed qemu stub is loaded into the mailbox area. As qemu can ensure the stub is loaded before execution starts, we do not need to emulate the AST_SMP_MBOX_FIELD_READY behaviour of u-boot. The secondary CPU's program counter points to the beginning of the stub, allowing qemu to start secondaries at step four. Reboot behaviour is preserved by resetting AST_SMP_MBOX_FIELD_GOSIGN when the secondaries are reset. This is only configured when the system is booted with -kernel and qemu does not execute u-boot first. Reviewed-by: Cédric Le Goater <clg@kaod.org> Tested-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-04-09 09:31:37 +03:00
#define AST_SMP_MAILBOX_BASE 0x1e6e2180
#define AST_SMP_MBOX_FIELD_ENTRY (AST_SMP_MAILBOX_BASE + 0x0)
#define AST_SMP_MBOX_FIELD_GOSIGN (AST_SMP_MAILBOX_BASE + 0x4)
#define AST_SMP_MBOX_FIELD_READY (AST_SMP_MAILBOX_BASE + 0x8)
#define AST_SMP_MBOX_FIELD_POLLINSN (AST_SMP_MAILBOX_BASE + 0xc)
#define AST_SMP_MBOX_CODE (AST_SMP_MAILBOX_BASE + 0x10)
#define AST_SMP_MBOX_GOSIGN 0xabbaab00
static void aspeed_write_smpboot(ARMCPU *cpu,
const struct arm_boot_info *info)
{
static const uint32_t poll_mailbox_ready[] = {
/*
* r2 = per-cpu go sign value
* r1 = AST_SMP_MBOX_FIELD_ENTRY
* r0 = AST_SMP_MBOX_FIELD_GOSIGN
*/
0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 */
0xe21000ff, /* ands r0, r0, #255 */
0xe59f201c, /* ldr r2, [pc, #28] */
0xe1822000, /* orr r2, r2, r0 */
0xe59f1018, /* ldr r1, [pc, #24] */
0xe59f0018, /* ldr r0, [pc, #24] */
0xe320f002, /* wfe */
0xe5904000, /* ldr r4, [r0] */
0xe1520004, /* cmp r2, r4 */
0x1afffffb, /* bne <wfe> */
0xe591f000, /* ldr pc, [r1] */
AST_SMP_MBOX_GOSIGN,
AST_SMP_MBOX_FIELD_ENTRY,
AST_SMP_MBOX_FIELD_GOSIGN,
};
rom_add_blob_fixed("aspeed.smpboot", poll_mailbox_ready,
sizeof(poll_mailbox_ready),
info->smp_loader_start);
}
static void aspeed_reset_secondary(ARMCPU *cpu,
const struct arm_boot_info *info)
{
AddressSpace *as = arm_boot_address_space(cpu, info);
CPUState *cs = CPU(cpu);
/* info->smp_bootreg_addr */
address_space_stl_notdirty(as, AST_SMP_MBOX_FIELD_GOSIGN, 0,
MEMTXATTRS_UNSPECIFIED, NULL);
cpu_set_pc(cs, info->smp_loader_start);
}
#define FIRMWARE_ADDR 0x0
static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size,
Error **errp)
{
BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
uint8_t *storage;
int64_t size;
/* The block backend size should have already been 'validated' by
* the creation of the m25p80 object.
*/
size = blk_getlength(blk);
if (size <= 0) {
error_setg(errp, "failed to get flash size");
return;
}
if (rom_size > size) {
rom_size = size;
}
storage = g_new0(uint8_t, rom_size);
if (blk_pread(blk, 0, storage, rom_size) < 0) {
error_setg(errp, "failed to read the initial flash content");
return;
}
rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr);
g_free(storage);
}
static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
Error **errp)
{
int i ;
for (i = 0; i < s->num_cs; ++i) {
AspeedSMCFlash *fl = &s->flashes[i];
DriveInfo *dinfo = drive_get_next(IF_MTD);
qemu_irq cs_line;
fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
if (dinfo) {
qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
errp);
}
qdev_init_nofail(fl->flash);
cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
}
}
static void sdhci_attach_drive(SDHCIState *sdhci, DriveInfo *dinfo)
{
DeviceState *card;
card = qdev_create(qdev_get_child_bus(DEVICE(sdhci), "sd-bus"),
TYPE_SD_CARD);
if (dinfo) {
qdev_prop_set_drive(card, "drive", blk_by_legacy_dinfo(dinfo),
&error_fatal);
}
object_property_set_bool(OBJECT(card), true, "realized", &error_fatal);
}
static void aspeed_machine_init(MachineState *machine)
{
AspeedBoardState *bmc;
AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(machine);
AspeedSoCClass *sc;
DriveInfo *drive0 = drive_get(IF_MTD, 0, 0);
ram_addr_t max_ram_size;
int i;
bmc = g_new0(AspeedBoardState, 1);
memory_region_init(&bmc->ram_container, NULL, "aspeed-ram-container",
UINT32_MAX);
memory_region_add_subregion(&bmc->ram_container, 0, machine->ram);
hw/arm/aspeed: Use object_initialize_child for correct ref. counting As explained in commit aff39be0ed97: Both functions, object_initialize() and object_property_add_child() increase the reference counter of the new object, so one of the references has to be dropped afterwards to get the reference counting right. Otherwise the child object will not be properly cleaned up when the parent gets destroyed. Thus let's use now object_initialize_child() instead to get the reference counting here right. This patch was generated using the following Coccinelle script (with a bit of manual fix-up for overly long lines): @use_object_initialize_child@ expression parent_obj; expression child_ptr; expression child_name; expression child_type; expression child_size; expression errp; @@ ( - object_initialize(child_ptr, child_size, child_type); + object_initialize_child(parent_obj, child_name, child_ptr, child_size, + child_type, &error_abort, NULL); ... when != parent_obj - object_property_add_child(parent_obj, child_name, OBJECT(child_ptr), NULL); ... ?- object_unref(OBJECT(child_ptr)); | - object_initialize(child_ptr, child_size, child_type); + object_initialize_child(parent_obj, child_name, child_ptr, child_size, + child_type, errp, NULL); ... when != parent_obj - object_property_add_child(parent_obj, child_name, OBJECT(child_ptr), errp); ... ?- object_unref(OBJECT(child_ptr)); ) @use_sysbus_init_child_obj@ expression parent_obj; expression dev; expression child_ptr; expression child_name; expression child_type; expression child_size; expression errp; @@ ( - object_initialize_child(parent_obj, child_name, child_ptr, child_size, - child_type, errp, NULL); + sysbus_init_child_obj(parent_obj, child_name, child_ptr, child_size, + child_type); ... - qdev_set_parent_bus(DEVICE(child_ptr), sysbus_get_default()); | - object_initialize_child(parent_obj, child_name, child_ptr, child_size, - child_type, errp, NULL); + sysbus_init_child_obj(parent_obj, child_name, child_ptr, child_size, + child_type); - dev = DEVICE(child_ptr); - qdev_set_parent_bus(dev, sysbus_get_default()); ) While the object_initialize() function doesn't take an 'Error *errp' argument, the object_initialize_child() does. Since this code is used when a machine is created (and is not yet running), we deliberately choose to use the &error_abort argument instead of ignoring errors if an object creation failed. This choice also matches when using sysbus_init_child_obj(), since its code is: void sysbus_init_child_obj(Object *parent, const char *childname, void *child, size_t childsize, const char *childtype) { object_initialize_child(parent, childname, child, childsize, childtype, &error_abort, NULL); qdev_set_parent_bus(DEVICE(child), sysbus_get_default()); } Suggested-by: Eduardo Habkost <ehabkost@redhat.com> Inspired-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Joel Stanley <joel@jms.id.au> Message-Id: <20190507163416.24647-8-philmd@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-07 19:34:07 +03:00
object_initialize_child(OBJECT(machine), "soc", &bmc->soc,
(sizeof(bmc->soc)), amc->soc_name, &error_abort,
hw/arm/aspeed: Use object_initialize_child for correct ref. counting As explained in commit aff39be0ed97: Both functions, object_initialize() and object_property_add_child() increase the reference counter of the new object, so one of the references has to be dropped afterwards to get the reference counting right. Otherwise the child object will not be properly cleaned up when the parent gets destroyed. Thus let's use now object_initialize_child() instead to get the reference counting here right. This patch was generated using the following Coccinelle script (with a bit of manual fix-up for overly long lines): @use_object_initialize_child@ expression parent_obj; expression child_ptr; expression child_name; expression child_type; expression child_size; expression errp; @@ ( - object_initialize(child_ptr, child_size, child_type); + object_initialize_child(parent_obj, child_name, child_ptr, child_size, + child_type, &error_abort, NULL); ... when != parent_obj - object_property_add_child(parent_obj, child_name, OBJECT(child_ptr), NULL); ... ?- object_unref(OBJECT(child_ptr)); | - object_initialize(child_ptr, child_size, child_type); + object_initialize_child(parent_obj, child_name, child_ptr, child_size, + child_type, errp, NULL); ... when != parent_obj - object_property_add_child(parent_obj, child_name, OBJECT(child_ptr), errp); ... ?- object_unref(OBJECT(child_ptr)); ) @use_sysbus_init_child_obj@ expression parent_obj; expression dev; expression child_ptr; expression child_name; expression child_type; expression child_size; expression errp; @@ ( - object_initialize_child(parent_obj, child_name, child_ptr, child_size, - child_type, errp, NULL); + sysbus_init_child_obj(parent_obj, child_name, child_ptr, child_size, + child_type); ... - qdev_set_parent_bus(DEVICE(child_ptr), sysbus_get_default()); | - object_initialize_child(parent_obj, child_name, child_ptr, child_size, - child_type, errp, NULL); + sysbus_init_child_obj(parent_obj, child_name, child_ptr, child_size, + child_type); - dev = DEVICE(child_ptr); - qdev_set_parent_bus(dev, sysbus_get_default()); ) While the object_initialize() function doesn't take an 'Error *errp' argument, the object_initialize_child() does. Since this code is used when a machine is created (and is not yet running), we deliberately choose to use the &error_abort argument instead of ignoring errors if an object creation failed. This choice also matches when using sysbus_init_child_obj(), since its code is: void sysbus_init_child_obj(Object *parent, const char *childname, void *child, size_t childsize, const char *childtype) { object_initialize_child(parent, childname, child, childsize, childtype, &error_abort, NULL); qdev_set_parent_bus(DEVICE(child), sysbus_get_default()); } Suggested-by: Eduardo Habkost <ehabkost@redhat.com> Inspired-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Joel Stanley <joel@jms.id.au> Message-Id: <20190507163416.24647-8-philmd@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2019-05-07 19:34:07 +03:00
NULL);
sc = ASPEED_SOC_GET_CLASS(&bmc->soc);
arm/aspeed: actually check RAM size It's supposed that SOC will check if "-m" provided RAM size is valid by setting "ram-size" property and then board would read back valid (possibly corrected value) to map RAM MemoryReging with valid size. It isn't doing so, since check is called only indirectly from aspeed_sdmc_reset()->asc->compute_conf() or much later when guest writes to configuration register. So depending on "-m" value QEMU end-ups with a warning and an invalid MemoryRegion size allocated and mapped. (examples: -M ast2500-evb -m 1M 0000000080000000-000000017ffffffe (prio 0, i/o): aspeed-ram-container 0000000080000000-00000000800fffff (prio 0, ram): ram 0000000080100000-00000000bfffffff (prio 0, i/o): max_ram -M ast2500-evb -m 3G 0000000080000000-000000017ffffffe (prio 0, i/o): aspeed-ram-container 0000000080000000-000000013fffffff (prio 0, ram): ram [DETECTED OVERFLOW!] 0000000140000000-00000000bfffffff (prio 0, i/o): max_ram ) On top of that sdmc falls back and reports to guest "default" size, it thinks machine should have. This patch makes ram-size check actually work and changes behavior from a warning later on during machine reset to error_fatal at the moment SOC.ram-size is set so user will have to fix RAM size on CLI to start machine. It also gets out of the way mutable ram-size logic, so we could consolidate RAM allocation logic around pre-allocated hostmem backend (supplied by user or auto created by generic machine code depending on supplied -m/mem-path/mem-prealloc options. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200219160953.13771-10-imammedo@redhat.com>
2020-02-19 19:08:43 +03:00
/*
* This will error out if isize is not supported by memory controller.
*/
object_property_set_uint(OBJECT(&bmc->soc), ram_size, "ram-size",
arm/aspeed: actually check RAM size It's supposed that SOC will check if "-m" provided RAM size is valid by setting "ram-size" property and then board would read back valid (possibly corrected value) to map RAM MemoryReging with valid size. It isn't doing so, since check is called only indirectly from aspeed_sdmc_reset()->asc->compute_conf() or much later when guest writes to configuration register. So depending on "-m" value QEMU end-ups with a warning and an invalid MemoryRegion size allocated and mapped. (examples: -M ast2500-evb -m 1M 0000000080000000-000000017ffffffe (prio 0, i/o): aspeed-ram-container 0000000080000000-00000000800fffff (prio 0, ram): ram 0000000080100000-00000000bfffffff (prio 0, i/o): max_ram -M ast2500-evb -m 3G 0000000080000000-000000017ffffffe (prio 0, i/o): aspeed-ram-container 0000000080000000-000000013fffffff (prio 0, ram): ram [DETECTED OVERFLOW!] 0000000140000000-00000000bfffffff (prio 0, i/o): max_ram ) On top of that sdmc falls back and reports to guest "default" size, it thinks machine should have. This patch makes ram-size check actually work and changes behavior from a warning later on during machine reset to error_fatal at the moment SOC.ram-size is set so user will have to fix RAM size on CLI to start machine. It also gets out of the way mutable ram-size logic, so we could consolidate RAM allocation logic around pre-allocated hostmem backend (supplied by user or auto created by generic machine code depending on supplied -m/mem-path/mem-prealloc options. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200219160953.13771-10-imammedo@redhat.com>
2020-02-19 19:08:43 +03:00
&error_fatal);
object_property_set_int(OBJECT(&bmc->soc), amc->hw_strap1, "hw-strap1",
&error_abort);
object_property_set_int(OBJECT(&bmc->soc), amc->hw_strap2, "hw-strap2",
&error_abort);
object_property_set_int(OBJECT(&bmc->soc), amc->num_cs, "num-cs",
&error_abort);
object_property_set_int(OBJECT(&bmc->soc), machine->smp.cpus, "num-cpus",
&error_abort);
object_property_set_link(OBJECT(&bmc->soc), OBJECT(&bmc->ram_container),
"dram", &error_abort);
if (machine->kernel_filename) {
/*
* When booting with a -kernel command line there is no u-boot
* that runs to unlock the SCU. In this case set the default to
* be unlocked as the kernel expects
*/
object_property_set_int(OBJECT(&bmc->soc), ASPEED_SCU_PROT_KEY,
"hw-prot-key", &error_abort);
}
object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
&error_abort);
memory_region_add_subregion(get_system_memory(),
sc->memmap[ASPEED_SDRAM],
&bmc->ram_container);
max_ram_size = object_property_get_uint(OBJECT(&bmc->soc), "max-ram-size",
&error_abort);
memory_region_init_io(&bmc->max_ram, NULL, &max_ram_ops, NULL,
"max_ram", max_ram_size - ram_size);
memory_region_add_subregion(&bmc->ram_container, ram_size, &bmc->max_ram);
aspeed_board_init_flashes(&bmc->soc.fmc, amc->fmc_model, &error_abort);
aspeed_board_init_flashes(&bmc->soc.spi[0], amc->spi_model, &error_abort);
/* Install first FMC flash content as a boot rom. */
if (drive0) {
AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0];
MemoryRegion *boot_rom = g_new(MemoryRegion, 1);
/*
* create a ROM region using the default mapping window size of
* the flash module. The window size is 64MB for the AST2400
* SoC and 128MB for the AST2500 SoC, which is twice as big as
* needed by the flash modules of the Aspeed machines.
*/
if (ASPEED_MACHINE(machine)->mmio_exec) {
memory_region_init_alias(boot_rom, OBJECT(bmc), "aspeed.boot_rom",
&fl->mmio, 0, fl->size);
memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR,
boot_rom);
} else {
memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom",
fl->size, &error_abort);
memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR,
boot_rom);
write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort);
}
}
aspeed: Add boot stub for smp booting This is a boot stub that is similar to the code u-boot runs, allowing the kernel to boot the secondary CPU. u-boot works as follows: 1. Initialises the SMP mailbox area in the SCU at 0x1e6e2180 with default values 2. Copies a stub named 'mailbox_insn' from flash to the SCU, just above the mailbox area 3. Sets AST_SMP_MBOX_FIELD_READY to a magic value to indicate the secondary can begin execution from the stub 4. The stub waits until the AST_SMP_MBOX_FIELD_GOSIGN register is set to a magic value 5. Jumps to the address in AST_SMP_MBOX_FIELD_ENTRY, starting Linux Linux indicates it is ready by writing the address of its entrypoint function to AST_SMP_MBOX_FIELD_ENTRY and the 'go' magic number to AST_SMP_MBOX_FIELD_GOSIGN. The secondary CPU sees this at step 4 and breaks out of it's loop. To be compatible, a fixed qemu stub is loaded into the mailbox area. As qemu can ensure the stub is loaded before execution starts, we do not need to emulate the AST_SMP_MBOX_FIELD_READY behaviour of u-boot. The secondary CPU's program counter points to the beginning of the stub, allowing qemu to start secondaries at step four. Reboot behaviour is preserved by resetting AST_SMP_MBOX_FIELD_GOSIGN when the secondaries are reset. This is only configured when the system is booted with -kernel and qemu does not execute u-boot first. Reviewed-by: Cédric Le Goater <clg@kaod.org> Tested-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-04-09 09:31:37 +03:00
if (machine->kernel_filename && bmc->soc.num_cpus > 1) {
/* With no u-boot we must set up a boot stub for the secondary CPU */
MemoryRegion *smpboot = g_new(MemoryRegion, 1);
memory_region_init_ram(smpboot, OBJECT(bmc), "aspeed.smpboot",
0x80, &error_abort);
memory_region_add_subregion(get_system_memory(),
AST_SMP_MAILBOX_BASE, smpboot);
aspeed_board_binfo.write_secondary_boot = aspeed_write_smpboot;
aspeed_board_binfo.secondary_cpu_reset_hook = aspeed_reset_secondary;
aspeed_board_binfo.smp_loader_start = AST_SMP_MBOX_CODE;
}
aspeed_board_binfo.ram_size = ram_size;
aspeed_board_binfo.loader_start = sc->memmap[ASPEED_SDRAM];
aspeed_board_binfo.nb_cpus = bmc->soc.num_cpus;
if (amc->i2c_init) {
amc->i2c_init(bmc);
}
for (i = 0; i < bmc->soc.sdhci.num_slots; i++) {
sdhci_attach_drive(&bmc->soc.sdhci.slots[i], drive_get_next(IF_SD));
}
if (bmc->soc.emmc.num_slots) {
sdhci_attach_drive(&bmc->soc.emmc.slots[0], drive_get_next(IF_SD));
}
arm_load_kernel(ARM_CPU(first_cpu), machine, &aspeed_board_binfo);
}
static void palmetto_bmc_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
DeviceState *dev;
uint8_t *eeprom_buf = g_malloc0(32 * 1024);
/* The palmetto platform expects a ds3231 RTC but a ds1338 is
* enough to provide basic RTC features. Alarms will be missing */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68);
smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), 0x50,
eeprom_buf);
/* add a TMP423 temperature sensor */
dev = i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2),
"tmp423", 0x4c);
object_property_set_int(OBJECT(dev), 31000, "temperature0", &error_abort);
object_property_set_int(OBJECT(dev), 28000, "temperature1", &error_abort);
object_property_set_int(OBJECT(dev), 20000, "temperature2", &error_abort);
object_property_set_int(OBJECT(dev), 110000, "temperature3", &error_abort);
}
static void ast2500_evb_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
uint8_t *eeprom_buf = g_malloc0(8 * 1024);
smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), 0x50,
eeprom_buf);
/* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7),
TYPE_TMP105, 0x4d);
/* The AST2500 EVB does not have an RTC. Let's pretend that one is
* plugged on the I2C bus header */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
}
static void ast2600_evb_i2c_init(AspeedBoardState *bmc)
{
/* Start with some devices on our I2C busses */
ast2500_evb_i2c_init(bmc);
}
static void romulus_bmc_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
/* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
* good enough */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
}
static void swift_bmc_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), "pca9552", 0x60);
/* The swift board expects a TMP275 but a TMP105 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x48);
/* The swift board expects a pca9551 but a pca9552 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "pca9552", 0x60);
/* The swift board expects an Epson RX8900 RTC but a ds1338 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "ds1338", 0x32);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x60);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "tmp423", 0x4c);
/* The swift board expects a pca9539 but a pca9552 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "pca9552", 0x74);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 10), "tmp423", 0x4c);
/* The swift board expects a pca9539 but a pca9552 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 10), "pca9552",
0x74);
/* The swift board expects a TMP275 but a TMP105 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 12), "tmp105", 0x48);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 12), "tmp105", 0x4a);
}
static void sonorapass_bmc_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
/* bus 2 : */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), "tmp105", 0x48);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2), "tmp105", 0x49);
/* bus 2 : pca9546 @ 0x73 */
/* bus 3 : pca9548 @ 0x70 */
/* bus 4 : */
uint8_t *eeprom4_54 = g_malloc0(8 * 1024);
smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), 0x54,
eeprom4_54);
/* PCA9539 @ 0x76, but PCA9552 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "pca9552", 0x76);
/* PCA9539 @ 0x77, but PCA9552 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "pca9552", 0x77);
/* bus 6 : */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 6), "tmp105", 0x48);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 6), "tmp105", 0x49);
/* bus 6 : pca9546 @ 0x73 */
/* bus 8 : */
uint8_t *eeprom8_56 = g_malloc0(8 * 1024);
smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), 0x56,
eeprom8_56);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x60);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x61);
/* bus 8 : adc128d818 @ 0x1d */
/* bus 8 : adc128d818 @ 0x1f */
/*
* bus 13 : pca9548 @ 0x71
* - channel 3:
* - tmm421 @ 0x4c
* - tmp421 @ 0x4e
* - tmp421 @ 0x4f
*/
}
static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
uint8_t *eeprom_buf = g_malloc0(8 * 1024);
/* Bus 3: TODO bmp280@77 */
/* Bus 3: TODO max31785@52 */
/* Bus 3: TODO dps310@76 */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), TYPE_PCA9552,
0x60);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c);
/* The Witherspoon expects a TMP275 but a TMP105 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), TYPE_TMP105,
0x4a);
/* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
* good enough */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), 0x51,
eeprom_buf);
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), TYPE_PCA9552,
0x60);
/* Bus 11: TODO ucd90160@64 */
}
static bool aspeed_get_mmio_exec(Object *obj, Error **errp)
{
return ASPEED_MACHINE(obj)->mmio_exec;
}
static void aspeed_set_mmio_exec(Object *obj, bool value, Error **errp)
{
ASPEED_MACHINE(obj)->mmio_exec = value;
}
static void aspeed_machine_instance_init(Object *obj)
{
ASPEED_MACHINE(obj)->mmio_exec = false;
}
static void aspeed_machine_class_props_init(ObjectClass *oc)
{
object_class_property_add_bool(oc, "execute-in-place",
aspeed_get_mmio_exec,
aspeed_set_mmio_exec, &error_abort);
object_class_property_set_description(oc, "execute-in-place",
"boot directly from CE0 flash device");
}
static void aspeed_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->init = aspeed_machine_init;
mc->max_cpus = ASPEED_CPUS_NUM;
mc->no_floppy = 1;
mc->no_cdrom = 1;
mc->no_parallel = 1;
mc->default_ram_id = "ram";
aspeed_machine_class_props_init(oc);
}
static void aspeed_machine_palmetto_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)";
amc->soc_name = "ast2400-a1";
amc->hw_strap1 = PALMETTO_BMC_HW_STRAP1;
amc->fmc_model = "n25q256a";
amc->spi_model = "mx25l25635e";
amc->num_cs = 1;
amc->i2c_init = palmetto_bmc_i2c_init;
mc->default_ram_size = 256 * MiB;
};
static void aspeed_machine_ast2500_evb_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "Aspeed AST2500 EVB (ARM1176)";
amc->soc_name = "ast2500-a1";
amc->hw_strap1 = AST2500_EVB_HW_STRAP1;
amc->fmc_model = "w25q256";
amc->spi_model = "mx25l25635e";
amc->num_cs = 1;
amc->i2c_init = ast2500_evb_i2c_init;
mc->default_ram_size = 512 * MiB;
};
static void aspeed_machine_romulus_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "OpenPOWER Romulus BMC (ARM1176)";
amc->soc_name = "ast2500-a1";
amc->hw_strap1 = ROMULUS_BMC_HW_STRAP1;
amc->fmc_model = "n25q256a";
amc->spi_model = "mx66l1g45g";
amc->num_cs = 2;
amc->i2c_init = romulus_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
};
static void aspeed_machine_sonorapass_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "OCP SonoraPass BMC (ARM1176)";
amc->soc_name = "ast2500-a1";
amc->hw_strap1 = SONORAPASS_BMC_HW_STRAP1;
amc->fmc_model = "mx66l1g45g";
amc->spi_model = "mx66l1g45g";
amc->num_cs = 2;
amc->i2c_init = sonorapass_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
};
static void aspeed_machine_swift_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "OpenPOWER Swift BMC (ARM1176)";
amc->soc_name = "ast2500-a1";
amc->hw_strap1 = SWIFT_BMC_HW_STRAP1;
amc->fmc_model = "mx66l1g45g";
amc->spi_model = "mx66l1g45g";
amc->num_cs = 2;
amc->i2c_init = swift_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
};
static void aspeed_machine_witherspoon_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "OpenPOWER Witherspoon BMC (ARM1176)";
amc->soc_name = "ast2500-a1";
amc->hw_strap1 = WITHERSPOON_BMC_HW_STRAP1;
amc->fmc_model = "mx25l25635e";
amc->spi_model = "mx66l1g45g";
amc->num_cs = 2;
amc->i2c_init = witherspoon_bmc_i2c_init;
mc->default_ram_size = 512 * MiB;
};
static void aspeed_machine_ast2600_evb_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "Aspeed AST2600 EVB (Cortex A7)";
amc->soc_name = "ast2600-a1";
amc->hw_strap1 = AST2600_EVB_HW_STRAP1;
amc->hw_strap2 = AST2600_EVB_HW_STRAP2;
amc->fmc_model = "w25q512jv";
amc->spi_model = "mx66u51235f";
amc->num_cs = 1;
amc->i2c_init = ast2600_evb_i2c_init;
mc->default_ram_size = 1 * GiB;
};
static void aspeed_machine_tacoma_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
mc->desc = "OpenPOWER Tacoma BMC (Cortex A7)";
amc->soc_name = "ast2600-a1";
amc->hw_strap1 = TACOMA_BMC_HW_STRAP1;
amc->hw_strap2 = TACOMA_BMC_HW_STRAP2;
amc->fmc_model = "mx66l1g45g";
amc->spi_model = "mx66l1g45g";
amc->num_cs = 2;
amc->i2c_init = witherspoon_bmc_i2c_init; /* Same board layout */
mc->default_ram_size = 1 * GiB;
};
static const TypeInfo aspeed_machine_types[] = {
{
.name = MACHINE_TYPE_NAME("palmetto-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_palmetto_class_init,
}, {
.name = MACHINE_TYPE_NAME("ast2500-evb"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_ast2500_evb_class_init,
}, {
.name = MACHINE_TYPE_NAME("romulus-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_romulus_class_init,
}, {
.name = MACHINE_TYPE_NAME("swift-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_swift_class_init,
}, {
.name = MACHINE_TYPE_NAME("sonorapass-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_sonorapass_class_init,
}, {
.name = MACHINE_TYPE_NAME("witherspoon-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_witherspoon_class_init,
}, {
.name = MACHINE_TYPE_NAME("ast2600-evb"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_ast2600_evb_class_init,
}, {
.name = MACHINE_TYPE_NAME("tacoma-bmc"),
.parent = TYPE_ASPEED_MACHINE,
.class_init = aspeed_machine_tacoma_class_init,
}, {
.name = TYPE_ASPEED_MACHINE,
.parent = TYPE_MACHINE,
.instance_size = sizeof(AspeedMachine),
.instance_init = aspeed_machine_instance_init,
.class_size = sizeof(AspeedMachineClass),
.class_init = aspeed_machine_class_init,
.abstract = true,
}
};
DEFINE_TYPES(aspeed_machine_types)