diff options
| author | Damien Zammit <damien@zamaudio.com> | 2016-01-16 02:52:53 +1100 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2016-01-20 19:16:40 +0100 |
| commit | 1533f13d4332cd80437340c83d9cc800bb2aae11 (patch) | |
| tree | 42350e1102ef9cfa00cd51f3469510575ac8ab47 /src/southbridge/intel | |
| parent | 19bb1391bffac43332f7cc15e912b71a50c49f36 (diff) | |
sb/intel/i82801gx: Clean up sata.c
This tidies up the setting of the PCS register.
An assumption is made that bit 4 of this register is read-only,
which according to the ICH7 datasheet, it is.
Change-Id: Ia9b7d38a87e26236f6ebc951c169cae12b13139f
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/13015
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/southbridge/intel')
| -rw-r--r-- | src/southbridge/intel/i82801gx/sata.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/src/southbridge/intel/i82801gx/sata.c b/src/southbridge/intel/i82801gx/sata.c index f4eabe5f45..9cb6f39c16 100644 --- a/src/southbridge/intel/i82801gx/sata.c +++ b/src/southbridge/intel/i82801gx/sata.c @@ -116,8 +116,8 @@ static void sata_init(struct device *dev) /* Combine IDE - SATA configuration */ pci_write_config8(dev, SATA_MAP, 0x02); - /* Port 0 & 1 enable */ - pci_write_config8(dev, SATA_PCS, 0x0f); + /* Restrict ports - 0 and 2 only available */ + ports &= 0x5; } else if(config->sata_ahci) { printk(BIOS_DEBUG, "SATA controller in AHCI mode.\n"); /* Allow both Legacy and Native mode */ @@ -127,12 +127,6 @@ static void sata_init(struct device *dev) /* Interrupt Pin is set by D31IP.PIP */ pci_write_config8(dev, INTR_LN, 0x0a); - /* In ACHI mode, bit[3:0] must always be set - * (Port status is controlled through AHCI BAR) - * Different settings for different controller models. - */ - pci_write_config8(dev, SATA_PCS, ports); - ahci_bar = (u32 *)(pci_read_config32(dev, 0x27) & ~0x3ff); ahci_bar[3] = config->sata_ports_implemented; } else { @@ -172,11 +166,11 @@ static void sata_init(struct device *dev) /* Set IDE I/O Configuration */ reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0; pci_write_config32(dev, IDE_CONFIG, reg32); - - /* Port 0 & 1 enable XXX */ - pci_write_config8(dev, SATA_PCS, 0x15); } + /* Set port control */ + pci_write_config8(dev, SATA_PCS, ports); + /* Enable clock gating for unused ports and set initialization reg */ pci_write_config32(dev, SATA_IR, SIF3(ports) | SIF2 | SIF1 | SCRE); |