brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-06-09 23:36:03 +09:00
Code Issues Projects Releases Wiki Activity

efi_loader: device path for SATA devices

Browse Source 
Provide device path nodes for SATA devices.

This avoids creation of two handles with the same device path indicating
our root node.

This is what the device paths for a SATA drive with four partitions could
like:

/VenHw(..)/Sata(0x0,0xffff,0x0)
/VenHw(..)/Sata(0x0,0xffff,0x0)/HD(1,MBR,0x81ea591f,0x800,0x63ff830)
/VenHw(..)/Sata(0x0,0xffff,0x0)/HD(2,MBR,0x81ea591f,0x6400800,0x9ff830)
/VenHw(..)/Sata(0x0,0xffff,0x0)/HD(3,MBR,0x81ea591f,0x6e00800,0x16ef2ab0)
/VenHw(..)/Sata(0x0,0xffff,0x0)/HD(4,MBR,0x81ea591f,0x1dcf3800,0x1dcedab0)

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2020-05-20 23:12:02 +02:00
parent 19ecced71c
commit bf3bcef7fb
3 changed files with 39 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
include/efi_api.h
View File

@ -457,6 +457,7 @@ struct efi_device_path_acpi_path {
# define DEVICE_PATH_SUB_TYPE_MSG_USB 0x05
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
# define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS 0x0f
# define DEVICE_PATH_SUB_TYPE_MSG_SATA 0x12
# define DEVICE_PATH_SUB_TYPE_MSG_NVME 0x17
# define DEVICE_PATH_SUB_TYPE_MSG_SD 0x1a
# define DEVICE_PATH_SUB_TYPE_MSG_MMC 0x1d
@ -480,6 +481,13 @@ struct efi_device_path_usb {
u8 usb_interface;
} __packed;
struct efi_device_path_sata {
struct efi_device_path dp;
u16 hba_port;
u16 port_multiplier_port;
u16 logical_unit_number;
} __packed;
struct efi_device_path_mac_addr {
struct efi_device_path dp;
struct efi_mac_addr mac;

21
lib/efi_loader/efi_device_path.c
View File

@ -458,6 +458,11 @@ __maybe_unused static unsigned int dp_size(struct udevice *dev)
return dp_size(dev->parent) +
sizeof(struct efi_device_path_sd_mmc_path);
#endif
#if defined(CONFIG_AHCI) || defined(CONFIG_SATA)
case UCLASS_AHCI:
return dp_size(dev->parent) +
sizeof(struct efi_device_path_sata);
#endif
#if defined(CONFIG_NVME)
case UCLASS_NVME:
return dp_size(dev->parent) +
@ -623,6 +628,22 @@ __maybe_unused static void *dp_fill(void *buf, struct udevice *dev)
return &sddp[1];
}
#endif
#if defined(CONFIG_AHCI) || defined(CONFIG_SATA)
case UCLASS_AHCI: {
struct efi_device_path_sata *dp =
dp_fill(buf, dev->parent);
struct blk_desc *desc = dev_get_uclass_platdata(dev);
dp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
dp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_SATA;
dp->dp.length = sizeof(*dp);
dp->hba_port = desc->devnum;
/* default 0xffff implies no port multiplier */
dp->port_multiplier_port = 0xffff;
dp->logical_unit_number = desc->lun;
return &dp[1];
}
#endif
#if defined(CONFIG_NVME)
case UCLASS_NVME: {
struct efi_device_path_nvme *dp =

10
lib/efi_loader/efi_device_path_to_text.c
View File

@ -149,6 +149,16 @@ static char *dp_msging(char *s, struct efi_device_path *dp)
break;
}
case DEVICE_PATH_SUB_TYPE_MSG_SATA: {
struct efi_device_path_sata *sdp =
(struct efi_device_path_sata *) dp;
s += sprintf(s, "Sata(0x%x,0x%x,0x%x)",
sdp->hba_port,
sdp->port_multiplier_port,
sdp->logical_unit_number);
break;
}
case DEVICE_PATH_SUB_TYPE_MSG_NVME: {
struct efi_device_path_nvme *ndp =
(struct efi_device_path_nvme *)dp;