| /* 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_bd82x6x_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_read_resources(struct device *dev) |
| { |
| struct resource *res; |
| |
| pci_dev_read_resources(dev); |
| |
| /* Assign fixed resources for IDE legacy mode */ |
| |
| u8 sata_mode = 0; |
| get_option(&sata_mode, "sata_mode"); |
| if (sata_mode != 2) |
| return; |
| |
| res = find_resource(dev, PCI_BASE_ADDRESS_0); |
| if (res) { |
| res->base = 0x1f0; |
| res->size = 8; |
| res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| |
| res = find_resource(dev, PCI_BASE_ADDRESS_1); |
| if (res) { |
| res->base = 0x3f4; |
| res->size = 4; |
| res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| |
| res = find_resource(dev, PCI_BASE_ADDRESS_2); |
| if (res) { |
| res->base = 0x170; |
| res->size = 8; |
| res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| |
| res = find_resource(dev, PCI_BASE_ADDRESS_3); |
| if (res) { |
| res->base = 0x374; |
| res->size = 4; |
| res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED; |
| } |
| } |
| |
| static void sata_set_resources(struct device *dev) |
| { |
| /* work around bug in pci_dev_set_resources(), it bails out on FIXED */ |
| u8 sata_mode = 0; |
| get_option(&sata_mode, "sata_mode"); |
| if (sata_mode == 2) { |
| unsigned int i; |
| for (i = PCI_BASE_ADDRESS_0; i <= PCI_BASE_ADDRESS_3; i += 4) { |
| struct resource *const res = find_resource(dev, i); |
| if (res) |
| res->flags &= ~IORESOURCE_FIXED; |
| } |
| } |
| |
| pci_dev_set_resources(dev); |
| } |
| |
| 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); |
| |
| /* AHCI */ |
| if (sata_mode == 0) { |
| u8 *abar; |
| |
| printk(BIOS_DEBUG, "SATA: Controller in AHCI mode.\n"); |
| |
| /* Set timings */ |
| pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE | |
| IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS | |
| IDE_PPE0 | IDE_IE0 | IDE_TIME0); |
| pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE | |
| IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS); |
| |
| /* Sync DMA */ |
| pci_write_config16(dev, IDE_SDMA_CNT, IDE_PSDE0); |
| pci_write_config16(dev, IDE_SDMA_TIM, 0x0001); |
| |
| /* Set IDE I/O Configuration */ |
| reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0; |
| pci_write_config32(dev, IDE_CONFIG, reg32); |
| |
| /* for AHCI, Port Enable is managed in memory mapped space */ |
| reg16 = pci_read_config16(dev, 0x92); |
| reg16 &= ~0x3f; /* 6 ports SKU + ORM */ |
| reg16 |= 0x8000 | 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); |
| |
| /* Initialize AHCI memory-mapped space */ |
| abar = (u8 *)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 + 0x0c, config->sata_port_map); |
| (void) read32(abar + 0x0c); /* Read back 1 */ |
| (void) read32(abar + 0x0c); /* Read back 2 */ |
| /* CAP2 (HBA Capabilities Extended)*/ |
| reg32 = read32(abar + 0x24); |
| reg32 &= ~0x00000002; |
| write32(abar + 0x24, reg32); |
| /* VSP (Vendor Specific Register */ |
| reg32 = read32(abar + 0xa0); |
| reg32 &= ~0x00000005; |
| write32(abar + 0xa0, reg32); |
| } else { |
| /* IDE */ |
| |
| /* Without AHCI BAR no memory decoding */ |
| pci_and_config16(dev, PCI_COMMAND, ~PCI_COMMAND_MEMORY); |
| |
| if (sata_mode == 1) { |
| /* Native mode on both primary and secondary. */ |
| pci_or_config8(dev, 0x09, 0x05); |
| printk(BIOS_DEBUG, "SATA: Controller in IDE compat mode.\n"); |
| } else { |
| /* Legacy mode on both primary and secondary. */ |
| pci_and_config8(dev, 0x09, ~0x05); |
| printk(BIOS_DEBUG, "SATA: Controller in IDE legacy mode.\n"); |
| } |
| |
| /* Enable I/O decoding */ |
| pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE); |
| pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE); |
| |
| /* Port enable + OOB retry mode */ |
| pci_update_config16(dev, 0x92, ~0x3f, config->sata_port_map | 0x8000); |
| |
| /* SATA Initialization register */ |
| pci_write_config32(dev, 0x94, ((config->sata_port_map ^ 0x3f) << 24) | 0x183); |
| } |
| |
| /* Set Gen3 Transmitter settings if needed */ |
| if (config->sata_port0_gen3_tx) |
| pch_iobp_update(SATA_IOBP_SP0G3IR, 0, |
| config->sata_port0_gen3_tx); |
| |
| if (config->sata_port1_gen3_tx) |
| pch_iobp_update(SATA_IOBP_SP1G3IR, 0, |
| config->sata_port1_gen3_tx); |
| |
| /* Additional Programming Requirements */ |
| sir_write(dev, 0x04, 0x00001600); |
| sir_write(dev, 0x28, 0xa0000033); |
| reg32 = sir_read(dev, 0x54); |
| reg32 &= 0xff000000; |
| reg32 |= 0x5555aa; |
| sir_write(dev, 0x54, reg32); |
| sir_write(dev, 0x64, 0xcccc8484); |
| 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, 0x88338822); |
| sir_write(dev, 0xa0, 0x001c7000); |
| // a4 |
| sir_write(dev, 0xc4, 0x0c0c0c0c); |
| sir_write(dev, 0xc8, 0x0c0c0c0c); |
| sir_write(dev, 0xd4, 0x10000000); |
| |
| pch_iobp_update(0xea004001, 0x3fffffff, 0xc0000000); |
| pch_iobp_update(0xea00408a, 0xfffffcff, 0x00000100); |
| |
| pci_update_config32(dev, 0x98, |
| ~(1 << 16 | 0x3f << 7 | 3 << 5 | 3 << 3), |
| 1 << 24 | 1 << 22 | 1 << 20 | 1 << 19 | |
| 1 << 18 | 1 << 14 | 0x04 << 7 | 1 << 3); |
| } |
| |
| 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 const char *sata_acpi_name(const struct device *dev) |
| { |
| return "SATA"; |
| } |
| |
| 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 = sata_read_resources, |
| .set_resources = sata_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .acpi_fill_ssdt = sata_fill_ssdt, |
| .init = sata_init, |
| .enable = sata_enable, |
| .ops_pci = &pci_dev_ops_pci, |
| .acpi_name = sata_acpi_name, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { 0x1c00, 0x1c01, 0x1c02, 0x1c03, |
| 0x1e00, 0x1e01, 0x1e02, 0x1e03, |
| 0 }; |
| |
| static const struct pci_driver pch_sata __pci_driver = { |
| .ops = &sata_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |