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#include <common.h>
#include <dwc3-uboot.h>
#include <asm/cache.h>
#include <usb.h>
#include <linux/usb/gadget.h>
#include <intel_scu_ipc.h>
#include <watchdog.h>
#include <asm/u-boot-x86.h>
#include <part_efi.h>
#include <fb_mmc.h>
DECLARE_GLOBAL_DATA_PTR;
#ifndef CONFIG_WATCHDOG_HEARTBEAT
#define WATCHDOG_HEARTBEAT 30
#else
#define WATCHDOG_HEARTBEAT CONFIG_WATCHDOG_HEARTBEAT
#endif
#define PRODUCT_NAME "edison"
#define OSIP_MAGIC 0x24534f24;
struct osii_entry {
uint16_t os_rev_minor;
uint16_t os_rev_major;
uint32_t image_lba;
uint32_t load_address;
uint32_t start_address;
uint32_t image_size_blocks;
uint8_t attribute;
uint8_t reserved3[3];
} __attribute__((packed));
struct osip {
uint32_t osip_magic;
uint8_t reserved;
uint8_t version_minor;
uint8_t version_major;
uint8_t header_checksum;
uint8_t number_of_pointers;
uint8_t number_of_images;
uint16_t header_size;
uint32_t reserved2[5];
struct osii_entry osii[0];
} __attribute__((packed));
enum {
SCU_WATCHDOG_START = 0,
SCU_WATCHDOG_STOP,
SCU_WATCHDOG_KEEPALIVE,
SCU_WATCHDOG_SET_ACTION_ON_TIMEOUT
};
#define IPC_CMD(cmd, sub) (sub << 12 | cmd)
static struct dwc3_device dwc3_device_data = {
.maximum_speed = USB_SPEED_HIGH,
.base = CONFIG_SYS_USB_OTG_BASE,
.dr_mode = USB_DR_MODE_PERIPHERAL,
.index = 0,
};
int usb_gadget_handle_interrupts(int controller_index)
{
dwc3_uboot_handle_interrupt(controller_index);
WATCHDOG_RESET();
return 0;
}
int board_usb_init(int index, enum usb_init_type init)
{
if (index == 0 && init == USB_INIT_DEVICE)
return dwc3_uboot_init(&dwc3_device_data);
else
return -EINVAL;
}
int board_usb_cleanup(int index, enum usb_init_type init)
{
if (index == 0 && init == USB_INIT_DEVICE) {
dwc3_uboot_exit(index);
return 0;
} else
return -EINVAL;
}
char* get_product_name(void)
{
return PRODUCT_NAME;
}
void watchdog_reset(void)
{
ulong now = timer_get_us();
/* do not flood SCU */
if (unlikely((now - gd->arch.tsc_prev) > (WATCHDOG_HEARTBEAT * 1000000)))
{
gd->arch.tsc_prev = now;
intel_scu_ipc_send_command(IPC_CMD(IPCMSG_WATCHDOG_TIMER,
SCU_WATCHDOG_KEEPALIVE));
}
}
int watchdog_disable(void)
{
return (intel_scu_ipc_simple_command(IPCMSG_WATCHDOG_TIMER,
SCU_WATCHDOG_STOP));
}
int watchdog_init(void)
{
return (intel_scu_ipc_simple_command(IPCMSG_WATCHDOG_TIMER,
SCU_WATCHDOG_START));
}
char* board_get_reboot_target(void)
{
uint8_t recovery_mode_gpio = !(*(uint8_t*)0xff00800b & 0x20);
if (recovery_mode_gpio)
return "fastboot";
uint8_t target = *(uint8_t*)0xfffff807;
*(uint8_t*)0xfffff807 = 0;
*(uint8_t*)0xfffff81f += target;
intel_scu_ipc_raw_cmd(0xe4, 0, NULL, 0, NULL, 0, 0, 0xffffffff);
switch (target) {
case 0x0c: return "recovery";
case 0x0e: return "fastboot";
default: return "";
}
}
int fb_set_reboot_flag(void)
{
uint8_t previous_target = *(uint8_t*)0xfffff807;
*(uint8_t*)0xfffff807 = 0x0e;
*(uint8_t*)0xfffff81f += previous_target - 0x0e;
intel_scu_ipc_raw_cmd(0xe4, 0, NULL, 0, NULL, 0, 0, 0xffffffff);
return 0;
}
int board_verify_gpt_parts(struct gpt_frag *frag)
{
uint8_t u_boot_label[] = {
'u', 0, '-', 0, 'b', 0, 'o', 0, 'o', 0, 't', 0, 0, 0,
};
uint8_t factory_label[] = {
'f', 0, 'a', 0, 'c', 0, 't', 0, 'o', 0, 'r', 0, 'y', 0, 0, 0,
};
uint8_t security_label[] = {
's', 0, 'e', 0, 'c', 0, 'u', 0, 'r', 0, 'i', 0, 't', 0, 'y', 0, 0, 0,
};
if (memcmp(u_boot_label, frag->parts[0].label, sizeof(u_boot_label)))
return -EINVAL;
if (frag->parts[0].size_mib != 5)
return -EINVAL;
if (memcmp(factory_label, frag->parts[1].label, sizeof(factory_label)))
return -EINVAL;
if (frag->parts[1].size_mib != 1)
return -EINVAL;
if (memcmp(security_label, frag->parts[2].label, sizeof(security_label)))
return -EINVAL;
if (frag->parts[2].size_mib != 1)
return -EINVAL;
return 0;
}
int board_populate_mbr_boot_code(legacy_mbr *mbr)
{
struct osip *osip = (struct osip*)mbr->boot_code;
uint8_t *i, checksum = 0;
osip->osip_magic = OSIP_MAGIC;
osip->version_major = 1;
osip->version_minor = 0;
osip->number_of_pointers = 1;
osip->number_of_images = 1;
osip->header_size = sizeof(*osip) + sizeof(osip->osii[0]);
osip->osii[0].image_lba = 0x00000800; /* 1 MiB */
osip->osii[0].load_address = 0x01100000;
osip->osii[0].start_address = 0x01101000;
osip->osii[0].image_size_blocks = 0x00002800; /* 5 MiB */
osip->osii[0].attribute = 0x0000000f;
for (i = (uint8_t*)osip; i < ((uint8_t*)osip) + osip->header_size; i++)
checksum ^= *i;
osip->header_checksum = checksum;
memset(&osip->osii[1], 0xff, sizeof(struct osii_entry) * 14);
return 0;
}
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