| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/mmio.h> |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <option.h> |
| #include <acpi/acpi_sata.h> |
| #include <types.h> |
| |
| #include "chip.h" |
| #include "pch.h" |
| |
| typedef struct southbridge_intel_ibexpeak_config config_t; |
| |
| static inline u32 sir_read(struct device *dev, int idx) |
| { |
| pci_write_config32(dev, SATA_SIRI, idx); |
| return pci_read_config32(dev, SATA_SIRD); |
| } |
| |
| static inline void sir_write(struct device *dev, int idx, u32 value) |
| { |
| pci_write_config32(dev, SATA_SIRI, idx); |
| pci_write_config32(dev, SATA_SIRD, value); |
| } |
| |
| static void sata_init(struct device *dev) |
| { |
| u32 reg32; |
| u16 reg16; |
| /* Get the chip configuration */ |
| config_t *config = dev->chip_info; |
| u8 sata_mode; |
| |
| printk(BIOS_DEBUG, "SATA: Initializing...\n"); |
| |
| if (config == NULL) { |
| printk(BIOS_ERR, "SATA: ERROR: Device not in devicetree.cb!\n"); |
| return; |
| } |
| |
| if (get_option(&sata_mode, "sata_mode") != CB_SUCCESS) |
| /* Default to AHCI */ |
| sata_mode = 0; |
| |
| /* SATA configuration */ |
| |
| /* Enable BARs */ |
| pci_write_config16(dev, PCI_COMMAND, |
| PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO); |
| |
| if (sata_mode == 0) { |
| /* AHCI */ |
| u32 *abar; |
| |
| printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n"); |
| |
| /* Set Interrupt Line */ |
| /* Interrupt Pin is set by D31IP.PIP */ |
| pci_write_config8(dev, INTR_LN, 0x0b); |
| |
| /* Set timings */ |
| pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE); |
| pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE); |
| |
| /* for AHCI, Port Enable is managed in memory mapped space */ |
| reg16 = pci_read_config16(dev, 0x92); |
| reg16 &= ~0x3f; /* 6 ports SKU + ORM */ |
| reg16 |= 0x8100 | config->sata_port_map; |
| pci_write_config16(dev, 0x92, reg16); |
| |
| /* SATA Initialization register */ |
| pci_write_config32(dev, 0x94, |
| ((config-> |
| sata_port_map ^ 0x3f) << 24) | 0x183 | |
| 0x40000000); |
| pci_write_config32(dev, 0x98, 0x00590200); |
| |
| /* Initialize AHCI memory-mapped space */ |
| abar = (u32 *)(uintptr_t)pci_read_config32(dev, PCI_BASE_ADDRESS_5); |
| printk(BIOS_DEBUG, "ABAR: %p\n", abar); |
| /* CAP (HBA Capabilities) : enable power management */ |
| reg32 = read32(abar + 0x00); |
| reg32 |= 0x0c006000; // set PSC+SSC+SALP+SSS |
| reg32 &= ~0x00020060; // clear SXS+EMS+PMS |
| /* Set ISS, if available */ |
| if (config->sata_interface_speed_support) { |
| reg32 &= ~0x00f00000; |
| reg32 |= (config->sata_interface_speed_support & 0x03) |
| << 20; |
| } |
| write32(abar + 0x00, reg32); |
| /* PI (Ports implemented) */ |
| write32(abar + 0x03, config->sata_port_map); |
| (void)read32(abar + 0x03); /* Read back 1 */ |
| (void)read32(abar + 0x03); /* Read back 2 */ |
| /* CAP2 (HBA Capabilities Extended) */ |
| reg32 = read32(abar + 0x09); |
| reg32 &= ~0x00000002; |
| write32(abar + 0x09, reg32); |
| /* VSP (Vendor Specific Register */ |
| reg32 = read32(abar + 0x28); |
| reg32 &= ~0x00000005; |
| write32(abar + 0x28, reg32); |
| } else { |
| /* IDE */ |
| printk(BIOS_DEBUG, "SATA: Controller in plain mode.\n"); |
| |
| /* No AHCI: clear AHCI base */ |
| pci_write_config32(dev, 0x24, 0x00000000); |
| |
| /* And without AHCI BAR no memory decoding */ |
| reg16 = pci_read_config16(dev, PCI_COMMAND); |
| reg16 &= ~PCI_COMMAND_MEMORY; |
| pci_write_config16(dev, PCI_COMMAND, reg16); |
| |
| /* Native mode capable on both primary and secondary (0xa) |
| * or'ed with enabled (0x50) = 0xf |
| */ |
| pci_write_config8(dev, 0x09, 0x8f); |
| |
| /* Set Interrupt Line */ |
| /* Interrupt Pin is set by D31IP.PIP */ |
| pci_write_config8(dev, INTR_LN, 0xff); |
| |
| /* Set timings */ |
| pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE); |
| pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE); |
| |
| /* Port enable */ |
| reg16 = pci_read_config16(dev, 0x92); |
| reg16 &= ~0x3f; |
| reg16 |= config->sata_port_map; |
| pci_write_config16(dev, 0x92, reg16); |
| |
| /* SATA Initialization register */ |
| pci_write_config32(dev, 0x94, |
| ((config-> |
| sata_port_map ^ 0x3f) << 24) | 0x183); |
| } |
| |
| /* Additional Programming Requirements */ |
| sir_write(dev, 0x04, 0x00000000); |
| sir_write(dev, 0x28, 0x0a000033); |
| reg32 = sir_read(dev, 0x54); |
| reg32 &= 0xff000000; |
| reg32 |= 0x555555; |
| sir_write(dev, 0x54, reg32); |
| sir_write(dev, 0x64, 0xcccccccc); |
| reg32 = sir_read(dev, 0x68); |
| reg32 &= 0xffff0000; |
| reg32 |= 0xcccc; |
| sir_write(dev, 0x68, reg32); |
| reg32 = sir_read(dev, 0x78); |
| reg32 &= 0x0000ffff; |
| reg32 |= 0x88880000; |
| sir_write(dev, 0x78, reg32); |
| sir_write(dev, 0x84, 0x001c7000); |
| sir_write(dev, 0x88, 0x88888888); |
| sir_write(dev, 0xa0, 0x001c7000); |
| // a4 |
| sir_write(dev, 0xc4, 0x0c0c0c0c); |
| sir_write(dev, 0xc8, 0x0c0c0c0c); |
| sir_write(dev, 0xd4, 0x10000000); |
| } |
| |
| static void sata_enable(struct device *dev) |
| { |
| /* Get the chip configuration */ |
| config_t *config = dev->chip_info; |
| u16 map = 0; |
| u8 sata_mode; |
| |
| if (!config) |
| return; |
| |
| if (get_option(&sata_mode, "sata_mode") != CB_SUCCESS) |
| sata_mode = 0; |
| |
| /* |
| * Set SATA controller mode early so the resource allocator can |
| * properly assign IO/Memory resources for the controller. |
| */ |
| if (sata_mode == 0) |
| map = 0x0060; |
| |
| map |= (config->sata_port_map ^ 0x3f) << 8; |
| |
| pci_write_config16(dev, 0x90, map); |
| } |
| |
| static void sata_fill_ssdt(const struct device *dev) |
| { |
| config_t *config = dev->chip_info; |
| generate_sata_ssdt_ports("\\_SB_.PCI0.SATA", config->sata_port_map); |
| } |
| |
| static struct device_operations sata_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sata_init, |
| .enable = sata_enable, |
| .acpi_fill_ssdt = sata_fill_ssdt, |
| .ops_pci = &pci_dev_ops_pci, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { |
| PCI_DID_INTEL_IBEXPEAK_MOBILE_SATA_IDE_1, |
| PCI_DID_INTEL_IBEXPEAK_MOBILE_SATA_AHCI, |
| PCI_DID_INTEL_IBEXPEAK_MOBILE_SATA_IDE_2, |
| 0 |
| }; |
| |
| static const struct pci_driver pch_sata __pci_driver = { |
| .ops = &sata_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |