1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <device/device.h>
#include <device/pci.h>
#include <pc80/isa-dma.h>
#include <pc80/i8259.h>
#include <arch/ioapic.h>
#include <intelblocks/itss.h>
#include <intelblocks/lpc_lib.h>
#include <intelblocks/pcr.h>
#include <reg_script.h>
#include <soc/iomap.h>
#include <soc/pcr_ids.h>
#include <soc/intel/common/block/lpc/lpc_def.h>
#include "chip.h"
/**
PCH preserved MMIO range, 24 MB, from 0xFD000000 to 0xFE7FFFFF
**/
static const struct lpc_mmio_range skl_lpc_fixed_mmio_ranges[] = {
{ PCH_PRESERVED_BASE_ADDRESS, PCH_PRESERVED_BASE_SIZE },
{ 0, 0 }
};
const struct lpc_mmio_range *soc_get_fixed_mmio_ranges(void)
{
return skl_lpc_fixed_mmio_ranges;
}
void soc_get_gen_io_dec_range(uint32_t *gen_io_dec)
{
const config_t *config = config_of_soc();
gen_io_dec[0] = config->gen1_dec;
gen_io_dec[1] = config->gen2_dec;
gen_io_dec[2] = config->gen3_dec;
gen_io_dec[3] = config->gen4_dec;
}
void soc_setup_dmi_pcr_io_dec(uint32_t *gen_io_dec)
{
/* Mirror these same settings in DMI PCR */
pcr_write32(PID_DMI, PCR_DMI_LPCLGIR1, gen_io_dec[0]);
pcr_write32(PID_DMI, PCR_DMI_LPCLGIR2, gen_io_dec[1]);
pcr_write32(PID_DMI, PCR_DMI_LPCLGIR3, gen_io_dec[2]);
pcr_write32(PID_DMI, PCR_DMI_LPCLGIR4, gen_io_dec[3]);
}
static const struct reg_script pch_misc_init_script[] = {
/* Enable BIOS updates outside of SMM */
REG_PCI_RMW8(0xdc, ~(1 << 5), 0),
REG_SCRIPT_END
};
void lpc_soc_init(struct device *dev)
{
const config_t *const config = config_of(dev);
/* Legacy initialization */
isa_dma_init();
pch_misc_init();
reg_script_run_on_dev(PCH_DEV_LPC, pch_misc_init_script);
/* Enable CLKRUN_EN for power gating LPC */
lpc_enable_pci_clk_cntl();
/* Set LPC Serial IRQ mode */
lpc_set_serirq_mode(config->serirq_mode);
/* Interrupt configuration */
pch_enable_ioapic();
pch_pirq_init();
setup_i8259();
i8259_configure_irq_trigger(9, 1);
}
|
