2020-04-05 15:47:17 +02:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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2015-05-13 03:19:47 +02:00
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#include <device/device.h>
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#include <device/pci.h>
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#include <pc80/isa-dma.h>
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#include <pc80/i8259.h>
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#include <arch/ioapic.h>
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2017-04-12 01:05:23 +02:00
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#include <intelblocks/itss.h>
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2017-09-29 02:06:01 +02:00
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#include <intelblocks/lpc_lib.h>
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2017-03-08 13:29:40 +01:00
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#include <intelblocks/pcr.h>
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2015-05-13 03:19:47 +02:00
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#include <reg_script.h>
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#include <soc/iomap.h>
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2017-03-08 13:29:40 +01:00
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#include <soc/pcr_ids.h>
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2017-12-08 17:51:21 +01:00
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#include <soc/intel/common/block/lpc/lpc_def.h>
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2017-09-29 02:06:01 +02:00
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2019-03-21 11:10:03 +01:00
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#include "chip.h"
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2017-09-29 02:06:01 +02:00
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/**
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PCH preserved MMIO range, 24 MB, from 0xFD000000 to 0xFE7FFFFF
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**/
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static const struct lpc_mmio_range skl_lpc_fixed_mmio_ranges[] = {
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{ PCH_PRESERVED_BASE_ADDRESS, PCH_PRESERVED_BASE_SIZE },
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{ 0, 0 }
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};
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const struct lpc_mmio_range *soc_get_fixed_mmio_ranges(void)
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{
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return skl_lpc_fixed_mmio_ranges;
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}
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2015-05-13 03:19:47 +02:00
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2017-09-29 02:06:01 +02:00
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void soc_get_gen_io_dec_range(const struct device *dev, uint32_t *gen_io_dec)
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2015-05-13 03:19:47 +02:00
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{
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2019-07-13 21:16:25 +02:00
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const config_t *config = config_of(dev);
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2015-05-13 03:19:47 +02:00
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2017-09-29 02:06:01 +02:00
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gen_io_dec[0] = config->gen1_dec;
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gen_io_dec[1] = config->gen2_dec;
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gen_io_dec[2] = config->gen3_dec;
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gen_io_dec[3] = config->gen4_dec;
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2015-05-13 03:19:47 +02:00
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}
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2017-09-29 02:06:01 +02:00
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void soc_setup_dmi_pcr_io_dec(uint32_t *gen_io_dec)
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{
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/* Mirror these same settings in DMI PCR */
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pcr_write32(PID_DMI, PCR_DMI_LPCLGIR1, gen_io_dec[0]);
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pcr_write32(PID_DMI, PCR_DMI_LPCLGIR2, gen_io_dec[1]);
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pcr_write32(PID_DMI, PCR_DMI_LPCLGIR3, gen_io_dec[2]);
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pcr_write32(PID_DMI, PCR_DMI_LPCLGIR4, gen_io_dec[3]);
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}
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2015-05-13 03:19:47 +02:00
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static const struct reg_script pch_misc_init_script[] = {
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/* Enable BIOS updates outside of SMM */
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REG_PCI_RMW8(0xdc, ~(1 << 5), 0),
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REG_SCRIPT_END
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};
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2018-01-10 06:21:50 +01:00
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void lpc_soc_init(struct device *dev)
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2015-05-13 03:19:47 +02:00
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{
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2019-07-13 21:16:25 +02:00
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const config_t *const config = config_of(dev);
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2019-02-23 19:24:51 +01:00
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2015-05-13 03:19:47 +02:00
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/* Legacy initialization */
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isa_dma_init();
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2020-09-29 11:06:40 +02:00
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pch_misc_init();
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2017-09-29 02:06:01 +02:00
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reg_script_run_on_dev(PCH_DEV_LPC, pch_misc_init_script);
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/* Enable CLKRUN_EN for power gating LPC */
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lpc_enable_pci_clk_cntl();
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/* Set LPC Serial IRQ mode */
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2019-02-23 19:24:51 +01:00
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lpc_set_serirq_mode(config->serirq_mode);
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2015-05-13 03:19:47 +02:00
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/* Interrupt configuration */
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2020-09-29 10:25:50 +02:00
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pch_enable_ioapic();
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2020-09-29 10:58:09 +02:00
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pch_pirq_init();
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2015-05-13 03:19:47 +02:00
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setup_i8259();
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i8259_configure_irq_trigger(9, 1);
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}
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