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broadwell: Factor out PIRQ routing from devicetree 

All boards disable PIRQs, except purism/librem_bdw. Since IRQ0 is
invalid and modern OSes don't use PIRQ routing, disable the PIRQs.

Change-Id: I93b074474c3c6d4329903cab928dc41e1d3a3fb3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43868
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Angel Pons 2020-07-25 15:11:15 +02:00
parent 9f78127b61
commit 4a6c0a368e
5 changed files with 11 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/mainboard/google/auron/devicetree.cb
View File

@ -15,15 +15,6 @@ chip soc/intel/broadwell
# Set backlight PWM value for eDP
register "gpu_pch_backlight_pwm_hz" = "200"
register "pirqa_routing" = "0x80"
register "pirqb_routing" = "0x80"
register "pirqc_routing" = "0x80"
register "pirqd_routing" = "0x80"
register "pirqe_routing" = "0x80"
register "pirqf_routing" = "0x80"
register "pirqg_routing" = "0x80"
register "pirqh_routing" = "0x80"
# EC range is 0x800-0x9ff
register "gen1_dec" = "0x00fc0801"
register "gen2_dec" = "0x00fc0901"

9
src/mainboard/google/jecht/devicetree.cb
View File

@ -9,15 +9,6 @@ chip soc/intel/broadwell
# Enable HDMI Hotplug with 6ms pulse
register "gpu_dp_b_hotplug" = "0x06"
register "pirqa_routing" = "0x80"
register "pirqb_routing" = "0x80"
register "pirqc_routing" = "0x80"
register "pirqd_routing" = "0x80"
register "pirqe_routing" = "0x80"
register "pirqf_routing" = "0x80"
register "pirqg_routing" = "0x80"
register "pirqh_routing" = "0x80"
# SuperIO range is 0x700-0x73f
register "gen2_dec" = "0x003c0701"

9
src/mainboard/intel/wtm2/devicetree.cb
View File

@ -9,15 +9,6 @@ chip soc/intel/broadwell
# Enable DVI Hotplug with 6ms pulse
register "gpu_dp_b_hotplug" = "0x06"
register "pirqa_routing" = "0x80"
register "pirqb_routing" = "0x80"
register "pirqc_routing" = "0x80"
register "pirqd_routing" = "0x80"
register "pirqe_routing" = "0x80"
register "pirqf_routing" = "0x80"
register "pirqg_routing" = "0x80"
register "pirqh_routing" = "0x80"
register "alt_gp_smi_en" = "0x0000"
register "gpe0_en_1" = "0x00000400"
register "gpe0_en_2" = "0x00000000"

13
src/soc/intel/broadwell/chip.h
View File

@ -8,19 +8,6 @@
#include <stdint.h>
struct soc_intel_broadwell_config {
/*
* Interrupt Routing configuration
* If bit7 is 1, the interrupt is disabled.
*/
uint8_t pirqa_routing;
uint8_t pirqb_routing;
uint8_t pirqc_routing;
uint8_t pirqd_routing;
uint8_t pirqe_routing;
uint8_t pirqf_routing;
uint8_t pirqg_routing;
uint8_t pirqh_routing;
/* GPE configuration */
uint32_t gpe0_en_1;
uint32_t gpe0_en_2;

27
src/soc/intel/broadwell/lpc.c
View File

@ -90,17 +90,18 @@ static void enable_hpet(struct device *dev)
static void pch_pirq_init(struct device *dev)
{
struct device *irq_dev;
config_t *config = config_of(dev);
pci_write_config8(dev, PIRQA_ROUT, config->pirqa_routing);
pci_write_config8(dev, PIRQB_ROUT, config->pirqb_routing);
pci_write_config8(dev, PIRQC_ROUT, config->pirqc_routing);
pci_write_config8(dev, PIRQD_ROUT, config->pirqd_routing);
const uint8_t pirq = 0x80;
pci_write_config8(dev, PIRQE_ROUT, config->pirqe_routing);
pci_write_config8(dev, PIRQF_ROUT, config->pirqf_routing);
pci_write_config8(dev, PIRQG_ROUT, config->pirqg_routing);
pci_write_config8(dev, PIRQH_ROUT, config->pirqh_routing);
pci_write_config8(dev, PIRQA_ROUT, pirq);
pci_write_config8(dev, PIRQB_ROUT, pirq);
pci_write_config8(dev, PIRQC_ROUT, pirq);
pci_write_config8(dev, PIRQD_ROUT, pirq);
pci_write_config8(dev, PIRQE_ROUT, pirq);
pci_write_config8(dev, PIRQF_ROUT, pirq);
pci_write_config8(dev, PIRQG_ROUT, pirq);
pci_write_config8(dev, PIRQH_ROUT, pirq);
for (irq_dev = all_devices; irq_dev; irq_dev = irq_dev->next) {
u8 int_pin = 0, int_line = 0;
@ -112,16 +113,10 @@ static void pch_pirq_init(struct device *dev)
switch (int_pin) {
case 1: /* INTA# */
int_line = config->pirqa_routing;
break;
case 2: /* INTB# */
int_line = config->pirqb_routing;
break;
case 3: /* INTC# */
int_line = config->pirqc_routing;
break;
case 4: /* INTD# */
int_line = config->pirqd_routing;
int_line = pirq;
break;
}