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ScsiBus/ScsiDisk enhancement for no_media state.

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Ahci enumeration logic tuning for boot performance.

Signed-off-by:erictian
Reviewed-by:qianouyang, hhuan13

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11820 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
erictian
2011-06-14 02:11:34 +00:00
parent e118a40b9d
commit cbd2a4b362
4 changed files with 379 additions and 285 deletions
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17
MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AhciMode.h
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@@ -17,6 +17,8 @@
#define EFI_AHCI_BAR_INDEX 0x05
#define EFI_AHCI_CAPABILITY_OFFSET 0x0000
#define EFI_AHCI_CAP_SSS BIT27
#define EFI_AHCI_CAP_S64A BIT31
#define EFI_AHCI_GHC_OFFSET 0x0004
#define EFI_AHCI_GHC_RESET BIT0
#define EFI_AHCI_GHC_IE BIT1
@@ -34,6 +36,19 @@ typedef union {
UINT64 Uint64;
} DATA_64;
//
// Refer SATA1.0a spec section 5.2, the Phy detection time should be less than 10ms.
//
#define EFI_AHCI_BUS_PHY_DETECT_TIMEOUT 10
//
// Refer SATA1.0a spec, the FIS enable time should be less than 500ms.
//
#define EFI_AHCI_PORT_CMD_FR_CLEAR_TIMEOUT EFI_TIMER_PERIOD_MILLISECONDS(500)
//
// Refer SATA1.0a spec, the bus reset time should be less than 1s.
//
#define EFI_AHCI_BUS_RESET_TIMEOUT EFI_TIMER_PERIOD_SECONDS(1)
#define EFI_AHCI_ATAPI_DEVICE_SIG 0xEB140000
#define EFI_AHCI_ATA_DEVICE_SIG 0x00000000
#define EFI_AHCI_PORT_MULTIPLIER_SIG 0x96690000
@@ -103,7 +118,7 @@ typedef union {
#define EFI_AHCI_PORT_CMD_ST BIT0
#define EFI_AHCI_PORT_CMD_SUD BIT1
#define EFI_AHCI_PORT_CMD_POD BIT2
#define EFI_AHCI_PORT_CMD_COL BIT3
#define EFI_AHCI_PORT_CMD_CLO BIT3
#define EFI_AHCI_PORT_CMD_CR BIT15
#define EFI_AHCI_PORT_CMD_FRE BIT4
#define EFI_AHCI_PORT_CMD_FR BIT14