irq.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <intelblocks/lpc_lib.h>
#include <intelblocks/itss.h>
#include <soc/ramstage.h>
#include <soc/interrupt.h>
#include <soc/irq.h>
#include <string.h>
 
static const SI_PCH_DEVICE_INTERRUPT_CONFIG devintconfig[] = {
        /*
         * cAVS(Audio, Voice, Speech), INTA is default, programmed in
         * PciCfgSpace 3Dh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_HDA, int_A, cAVS_INTA_IRQ),
        /*
         * SMBus Controller, no default value, programmed in
         * PciCfgSpace 3Dh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_SMBUS, int_A, SMBUS_INTA_IRQ),
        /* GbE Controller, INTA is default, programmed in PciCfgSpace 3Dh */
        DEVICE_INT_CONFIG(PCH_DEVFN_GBE, int_A, GbE_INTA_IRQ),
        /* TraceHub, INTA is default, RO register */
        DEVICE_INT_CONFIG(PCH_DEVFN_TRACEHUB, int_A, TRACE_HUB_INTA_IRQ),
        /*
         * SerialIo: UART #0, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[7]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_UART0, int_A, LPSS_UART0_IRQ),
        /*
         * SerialIo: UART #1, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[8]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_UART1, int_B, LPSS_UART1_IRQ),
        /*
         * SerialIo: SPI #0, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[10]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_GSPI0, int_C, LPSS_SPI0_IRQ),
        /*
         * SerialIo: SPI #1, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[11]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_GSPI1, int_D, LPSS_SPI1_IRQ),
        /* SCS: eMMC (SKL PCH-LP Only) */
        DEVICE_INT_CONFIG(PCH_DEVFN_EMMC, int_B, eMMC_IRQ),
        /* SCS: SDIO (SKL PCH-LP Only) */
        DEVICE_INT_CONFIG(PCH_DEVFN_SDIO, int_C, SDIO_IRQ),
        /* SCS: SDCard (SKL PCH-LP Only) */
        DEVICE_INT_CONFIG(PCH_DEVFN_SDCARD, int_D, SD_IRQ),
        /* PCI Express Port, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE9, int_A, PCIE_9_IRQ),
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE10, int_B, PCIE_10_IRQ),
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE11, int_C, PCIE_11_IRQ),
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE12, int_D, PCIE_12_IRQ),
        /*
         * PCI Express Port 1, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE1, int_A, PCIE_1_IRQ),
        /*
         * PCI Express Port 2, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE2, int_B, PCIE_2_IRQ),
        /*
         * PCI Express Port 3, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE3, int_C, PCIE_3_IRQ),
        /*
         * PCI Express Port 4, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE4, int_D, PCIE_4_IRQ),
        /*
         * PCI Express Port 5, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE5, int_A, PCIE_5_IRQ),
        /*
         * PCI Express Port 6, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE6, int_B, PCIE_6_IRQ),
        /*
         * PCI Express Port 7, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE7, int_C, PCIE_7_IRQ),
        /*
         * PCI Express Port 8, INT is default,
         * programmed in PciCfgSpace + FCh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_PCIE8, int_D, PCIE_8_IRQ),
        /*
         * SerialIo UART Controller #2, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[9]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_UART2, int_A, LPSS_UART2_IRQ),
        /*
         * SerialIo UART Controller #5, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[6]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_I2C5, int_B, LPSS_I2C5_IRQ),
        /*
         * SerialIo UART Controller #4, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[5]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_I2C4, int_C, LPSS_I2C4_IRQ),
        /*
         * SATA Controller, INTA is default,
         * programmed in PciCfgSpace + 3Dh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_SATA, int_A, SATA_IRQ),
        /* CSME: HECI #1 */
        DEVICE_INT_CONFIG(PCH_DEVFN_CSE, int_A, HECI_1_IRQ),
        /* CSME: HECI #2 */
        DEVICE_INT_CONFIG(PCH_DEVFN_CSE_2, int_B, HECI_2_IRQ),
        /* CSME: IDE-Redirection (IDE-R) */
        DEVICE_INT_CONFIG(PCH_DEVFN_CSE_IDER, int_C, IDER_IRQ),
        /* CSME: Keyboard and Text (KT) Redirection */
        DEVICE_INT_CONFIG(PCH_DEVFN_CSE_KT, int_D, KT_IRQ),
        /* CSME: HECI #3 */
        DEVICE_INT_CONFIG(PCH_DEVFN_CSE_3, int_A, HECI_3_IRQ),
        /*
         * SerialIo I2C Controller #0, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[1]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_I2C0, int_A, LPSS_I2C0_IRQ),
        /*
         * SerialIo I2C Controller #1, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[2]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_I2C1, int_B, LPSS_I2C1_IRQ),
        /*
         * SerialIo I2C Controller #2, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[3]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_I2C2, int_C, LPSS_I2C2_IRQ),
        /*
         * SerialIo I2C Controller #3, INTA is default,
         * programmed in PCR[SERIALIO] + PCICFGCTRL[4]
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_I2C3, int_D, LPSS_I2C3_IRQ),
        /*
         * USB 3.0 xHCI Controller, no default value,
         * programmed in PciCfgSpace 3Dh
         */
        DEVICE_INT_CONFIG(PCH_DEVFN_XHCI, int_A, XHCI_IRQ),
        /* USB Device Controller (OTG) */
        DEVICE_INT_CONFIG(PCH_DEVFN_USBOTG, int_B, OTG_IRQ),
        /* Thermal Subsystem */
        DEVICE_INT_CONFIG(PCH_DEVFN_THERMAL, int_C, THERMAL_IRQ),
        /* Camera IO Host Controller */
        DEVICE_INT_CONFIG(PCH_DEVFN_CIO, int_A, CIO_INTA_IRQ),
        /* Integrated Sensor Hub */
        DEVICE_INT_CONFIG(PCH_DEVFN_ISH, int_A, ISH_IRQ)
};
 
void soc_irq_settings(FSP_SIL_UPD *params)
{
 
        uint32_t i, intdeventry;
        u8 irq_config[PCH_MAX_IRQ_CONFIG];
        const struct device *dev = pcidev_path_on_root(PCH_DEVFN_LPC);
        const struct soc_intel_skylake_config *config = config_of(dev);
 
        /* Get Device Int Count */
        intdeventry = ARRAY_SIZE(devintconfig);
        /* update irq table */
        memcpy((SI_PCH_DEVICE_INTERRUPT_CONFIG *)
                (uintptr_t)(params->DevIntConfigPtr), devintconfig, intdeventry *
                sizeof(SI_PCH_DEVICE_INTERRUPT_CONFIG));
 
        params->NumOfDevIntConfig = intdeventry;
        /* PxRC to IRQ programming */
        for (i = 0; i < PCH_MAX_IRQ_CONFIG; i++) {
                switch (i) {
                case PCH_PARC:
                case PCH_PCRC:
                case PCH_PDRC:
                case PCH_PERC:
                case PCH_PFRC:
                case PCH_PGRC:
                case PCH_PHRC:
                        irq_config[i] = PCH_IRQ11;
                        break;
                case PCH_PBRC:
                        irq_config[i] = PCH_IRQ10;
                        break;
                }
        }
        memcpy(params->PxRcConfig, irq_config, PCH_MAX_IRQ_CONFIG);
        /* GPIO IRQ Route  The valid values is 14 or 15 */
        if (config->GpioIrqSelect == 0)
                params->GpioIrqRoute = GPIO_IRQ14;
        else
                params->GpioIrqRoute = config->GpioIrqSelect;
        /* SCI IRQ Select  The valid values is 9, 10, 11 and 20 21, 22, 23 */
        if (config->SciIrqSelect == 0)
                params->SciIrqSelect = SCI_IRQ9;
        else
                params->SciIrqSelect = config->SciIrqSelect;
        /* TCO IRQ Select  The valid values is 9, 10, 11, 20 21, 22, 23 */
        if (config->TcoIrqSelect == 0)
                params->TcoIrqSelect = TCO_IRQ9;
        else
                params->TcoIrqSelect = config->TcoIrqSelect;
        /* TCO Irq enable/disable */
        params->TcoIrqEnable = config->TcoIrqEnable;
}