diff options
Diffstat (limited to 'src/soc/intel/apollolake')
| -rw-r--r-- | src/soc/intel/apollolake/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/ahci.c | 28 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/chip.c | 3 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/include/soc/ahci.h | 17 |
4 files changed, 48 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc index 107a913932..82937bc9a6 100644 --- a/src/soc/intel/apollolake/Makefile.inc +++ b/src/soc/intel/apollolake/Makefile.inc @@ -46,6 +46,7 @@ smm-y += elog.c smm-y += xhci.c ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi.c +ramstage-y += ahci.c ramstage-y += cpu.c ramstage-y += chip.c ramstage-y += cse.c diff --git a/src/soc/intel/apollolake/ahci.c b/src/soc/intel/apollolake/ahci.c new file mode 100644 index 0000000000..39121d7114 --- /dev/null +++ b/src/soc/intel/apollolake/ahci.c @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <console/console.h> +#include <device/pci_ops.h> +#include <soc/ahci.h> +#include <soc/pci_devs.h> +#include <soc/soc_chip.h> +#include <types.h> + +void ahci_set_speed(enum sata_speed_limit speed) +{ + if (speed == SATA_DEFAULT) + return; + + /* Setup temporary base address for BAR5. */ + pci_write_config32(PCH_DEV_SATA, PCI_BASE_ADDRESS_5, AHCI_TMP_BASE_ADDR); + /* Enable memory access for pci_dev. */ + pci_or_config16(PCH_DEV_SATA, PCI_COMMAND, PCI_COMMAND_MEMORY); + + printk(BIOS_DEBUG, "AHCI: Set SATA speed to Gen %d\n", speed); + clrsetbits32((void *)(AHCI_TMP_BASE_ADDR + AHCI_CAP), AHCI_CAP_ISS_MASK, + AHCI_SPEED(speed)); + + /* Disable memory access for pci_dev. */ + pci_and_config16(PCH_DEV_SATA, PCI_COMMAND, ~PCI_COMMAND_MEMORY); + /* Clear temporary base address for BAR5. */ + pci_write_config32(PCH_DEV_SATA, PCI_BASE_ADDRESS_5, 0); +} diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c index 04aa2ebd99..9ec52b1b41 100644 --- a/src/soc/intel/apollolake/chip.c +++ b/src/soc/intel/apollolake/chip.c @@ -24,6 +24,7 @@ #include <intelblocks/pmclib.h> #include <intelblocks/systemagent.h> #include <option.h> +#include <soc/ahci.h> #include <soc/cpu.h> #include <soc/heci.h> #include <soc/intel/common/vbt.h> @@ -736,7 +737,7 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd) /* SATA config */ if (is_devfn_enabled(PCH_DEVFN_SATA)) { silconfig->SataSalpSupport = !(cfg->DisableSataSalpSupport); - silconfig->SpeedLimit = cfg->sata_speed; + ahci_set_speed(cfg->sata_speed); memcpy(silconfig->SataPortsEnable, cfg->sata_ports_enable, sizeof(silconfig->SataPortsEnable)); memcpy(silconfig->SataPortsSolidStateDrive, cfg->sata_ports_ssd, diff --git a/src/soc/intel/apollolake/include/soc/ahci.h b/src/soc/intel/apollolake/include/soc/ahci.h new file mode 100644 index 0000000000..d129979327 --- /dev/null +++ b/src/soc/intel/apollolake/include/soc/ahci.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#ifndef _SOC_APOLLOLAKE_AHCI_H_ +#define _SOC_APOLLOLAKE_AHCI_H_ + +#include <soc/soc_chip.h> + +#define AHCI_TMP_BASE_ADDR 0x9872c000 + +#define AHCI_CAP 0x0 +#define AHCI_CAP_ISS_MASK 0x00f00000 +#define AHCI_SPEED(speed) (speed << 20) + +/* Set SATA controller speed. */ +void ahci_set_speed(enum sata_speed_limit speed); + +#endif /* _SOC_APOLLOLAKE_AHCI_H_ */ |