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authorJack Rosenthal <jrosenth@chromium.org>2021-11-04 12:11:58 -0600
committerCommit Bot <commit-bot@chromium.org>2021-11-05 04:22:34 +0000
commit252457d4b21f46889eebad61d4c0a65331919cec (patch)
tree01856c4d31d710b20e85a74c8d7b5836e35c3b98 /chip/it83xx/irq.c
parent08f5a1e6fc2c9467230444ac9b582dcf4d9f0068 (diff)
downloadchrome-ec-stabilize-14498.B-ish.tar.gz
In the interest of making long-term branch maintenance incur as little technical debt on us as possible, we should not maintain any files on the branch we are not actually using. This has the added effect of making it extremely clear when merging CLs from the main branch when changes have the possibility to affect us. The follow-on CL adds a convenience script to actually pull updates from the main branch and generate a CL for the update. BUG=b:204206272 BRANCH=ish TEST=make BOARD=arcada_ish && make BOARD=drallion_ish Signed-off-by: Jack Rosenthal <jrosenth@chromium.org> Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038 Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Tom Hughes <tomhughes@chromium.org>
Diffstat (limited to 'chip/it83xx/irq.c')
-rw-r--r--chip/it83xx/irq.c176
1 files changed, 0 insertions, 176 deletions
diff --git a/chip/it83xx/irq.c b/chip/it83xx/irq.c
deleted file mode 100644
index fb01309721..0000000000
--- a/chip/it83xx/irq.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/* Copyright 2013 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * IT83xx chip-specific part of the IRQ handling.
- */
-
-#include "common.h"
-#include "irq_chip.h"
-#include "registers.h"
-#include "util.h"
-
-#define IRQ_GROUP(n, cpu_ints...) \
- {(uint32_t)&CONCAT2(IT83XX_INTC_ISR, n) - IT83XX_INTC_BASE, \
- (uint32_t)&CONCAT2(IT83XX_INTC_IER, n) - IT83XX_INTC_BASE, \
- ##cpu_ints}
-
-static const struct {
- uint8_t isr_off;
- uint8_t ier_off;
- uint8_t cpu_int[8];
-} irq_groups[] = {
- IRQ_GROUP(0, {-1, 2, 5, 4, 6, 2, 2, 4}),
- IRQ_GROUP(1, { 7, 6, 6, 5, 2, 2, 2, 8}),
- IRQ_GROUP(2, { 6, 2, 8, 8, 8, 2, 12, 12}),
- IRQ_GROUP(3, { 5, 4, 4, 4, 11, 11, 3, 2}),
- IRQ_GROUP(4, {11, 11, 11, 11, 8, 9, 9, 9}),
- IRQ_GROUP(5, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(6, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(7, {10, 10, 3, 12, 3, 3, 3, 3}),
- IRQ_GROUP(8, { 4, 4, 4, 4, 4, 4, -1, 12}),
- IRQ_GROUP(9, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(10, { 3, 6, 12, 12, 5, 2, 2, 2}),
- IRQ_GROUP(11, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(12, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(13, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(14, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(15, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(16, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(17, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(18, { 2, 2, 2, 2, -1, 4, 4, 7}),
- IRQ_GROUP(19, { 6, 6, 12, 3, 3, 3, 3, 3}),
- IRQ_GROUP(20, {12, 12, 12, 12, 12, 12, 12, -1}),
-#if defined(IT83XX_INTC_GROUP_21_22_SUPPORT)
- IRQ_GROUP(21, { 2, 2, 2, 2, 2, 2, 2, 2}),
- IRQ_GROUP(22, { 2, 2, -1, -1, -1, -1, -1, -1}),
-#elif defined(CHIP_FAMILY_IT8XXX1) || defined(CHIP_FAMILY_IT8XXX2)
- IRQ_GROUP(21, {-1, -1, 12, 12, 12, 12, 12, 12}),
- IRQ_GROUP(22, { 2, 2, 2, 2, 2, 2, 2, 2}),
-#else
- IRQ_GROUP(21, {-1, -1, -1, -1, -1, -1, -1, -1}),
- IRQ_GROUP(22, {-1, -1, -1, -1, -1, -1, -1, -1}),
-#endif
- IRQ_GROUP(23, { 2, 2, -1, -1, -1, -1, -1, 2}),
- IRQ_GROUP(24, { 2, 2, 2, 2, 2, 2, -1, 2}),
- IRQ_GROUP(25, { 2, 2, 2, 2, -1, -1, -1, -1}),
- IRQ_GROUP(26, { 2, 2, 2, 2, 2, 2, 2, -1}),
- IRQ_GROUP(27, { 2, 2, 2, 2, 2, 2, -1, -1}),
- IRQ_GROUP(28, { 2, 2, 2, 2, 2, 2, -1, -1}),
-};
-
-#if defined(CHIP_FAMILY_IT8320) /* N8 core */
-/* Number of CPU hardware interrupts (HW0 ~ HW15) */
-int cpu_int_entry_number;
-#endif
-
-int chip_get_ec_int(void)
-{
- extern volatile int ec_int;
-
-#if defined(CHIP_FAMILY_IT8320) /* N8 core */
- int i;
-
- for (i = 0; i < IT83XX_IRQ_COUNT; i++) {
- ec_int = IT83XX_INTC_IVCT(cpu_int_entry_number);
- /*
- * WORKAROUND: when the interrupt vector register isn't
- * latched in a load operation,
- * we read it again to make sure the value we got
- * is the correct value.
- */
- if (ec_int == IT83XX_INTC_IVCT(cpu_int_entry_number))
- break;
- }
- /* Determine interrupt number */
- ec_int -= 16;
-#else /* defined(CHIP_FAMILY_IT8XXX2) RISCV core */
- /* wait until two equal interrupt values are read */
- do {
- ec_int = IT83XX_INTC_AIVCT;
- } while (ec_int != IT83XX_INTC_AIVCT);
- ec_int -= 0x10;
- /* Unsupported EC INT number. */
- if (chip_get_intc_group(ec_int) >= 16)
- return -1;
-#endif
- return ec_int;
-}
-
-int chip_get_intc_group(int irq)
-{
- return irq_groups[irq / 8].cpu_int[irq % 8];
-}
-
-void chip_enable_irq(int irq)
-{
- int group = irq / 8;
- int bit = irq % 8;
-
- /* SOC's interrupts share CPU machine-mode external interrupt */
- if (IS_ENABLED(CHIP_CORE_RISCV))
- IT83XX_INTC_REG(irq_groups[group].ier_off) |= BIT(bit);
-
- /* SOC's interrupts use CPU HW interrupt 2 ~ 15 */
- if (IS_ENABLED(CHIP_CORE_NDS32))
- IT83XX_INTC_REG(IT83XX_INTC_EXT_IER_OFF(group)) |= BIT(bit);
-}
-
-void chip_disable_irq(int irq)
-{
- int group = irq / 8;
- int bit = irq % 8;
-
- /* SOC's interrupts share CPU machine-mode external interrupt */
- if (IS_ENABLED(CHIP_CORE_RISCV)) {
- volatile uint8_t _ier __unused;
-
- IT83XX_INTC_REG(irq_groups[group].ier_off) &= ~BIT(bit);
- /*
- * This load operation will guarantee the above modification of
- * EC's register can be seen by any following instructions.
- */
- _ier = IT83XX_INTC_REG(irq_groups[group].ier_off);
- }
-
- /* SOC's interrupts use CPU HW interrupt 2 ~ 15 */
- if (IS_ENABLED(CHIP_CORE_NDS32)) {
- volatile uint8_t _ext_ier __unused;
-
- IT83XX_INTC_REG(IT83XX_INTC_EXT_IER_OFF(group)) &= ~BIT(bit);
- /*
- * This load operation will guarantee the above modification of
- * EC's register can be seen by any following instructions.
- */
- _ext_ier = IT83XX_INTC_REG(IT83XX_INTC_EXT_IER_OFF(group));
- }
-}
-
-void chip_clear_pending_irq(int irq)
-{
- int group = irq / 8;
- int bit = irq % 8;
-
- /* always write 1 clear, no | */
- IT83XX_INTC_REG(irq_groups[group].isr_off) = BIT(bit);
-}
-
-int chip_trigger_irq(int irq)
-{
- int group = irq / 8;
- int bit = irq % 8;
-
- return irq_groups[group].cpu_int[bit];
-}
-
-void chip_init_irqs(void)
-{
- int i;
-
- /* Clear all IERx and EXT_IERx */
- for (i = 0; i < ARRAY_SIZE(irq_groups); i++) {
- IT83XX_INTC_REG(irq_groups[i].ier_off) = 0;
- if (IS_ENABLED(CHIP_CORE_NDS32))
- IT83XX_INTC_REG(IT83XX_INTC_EXT_IER_OFF(i)) = 0;
- }
-}