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-rw-r--r--arch/x86/lib/Makefile4
-rw-r--r--arch/x86/lib/fsp/fsp_common.c5
-rw-r--r--arch/x86/lib/i8254.c37
-rw-r--r--arch/x86/lib/i8259.c (renamed from arch/x86/lib/pcat_interrupts.c)47
-rw-r--r--arch/x86/lib/interrupts.c10
-rw-r--r--arch/x86/lib/pcat_timer.c27
-rw-r--r--arch/x86/lib/tsc_timer.c6
7 files changed, 60 insertions, 76 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 2f82a21..d676e2c 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -19,8 +19,8 @@ obj-y += lpc-uclass.o
obj-y += mpspec.o
obj-$(CONFIG_ENABLE_MRC_CACHE) += mrccache.o
obj-y += cmd_mtrr.o
-obj-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o
-obj-$(CONFIG_SYS_PCAT_TIMER) += pcat_timer.o
+obj-$(CONFIG_I8259_PIC) += i8259.o
+obj-$(CONFIG_I8254_TIMER) += i8254.o
ifndef CONFIG_DM_PCI
obj-$(CONFIG_PCI) += pci_type1.o
endif
diff --git a/arch/x86/lib/fsp/fsp_common.c b/arch/x86/lib/fsp/fsp_common.c
index c78df94..5276ce6 100644
--- a/arch/x86/lib/fsp/fsp_common.c
+++ b/arch/x86/lib/fsp/fsp_common.c
@@ -35,11 +35,6 @@ int fsp_init_phase_pci(void)
return status ? -EPERM : 0;
}
-int board_pci_post_scan(struct pci_controller *hose)
-{
- return fsp_init_phase_pci();
-}
-
void board_final_cleanup(void)
{
u32 status;
diff --git a/arch/x86/lib/i8254.c b/arch/x86/lib/i8254.c
new file mode 100644
index 0000000..46a4245
--- /dev/null
+++ b/arch/x86/lib/i8254.c
@@ -0,0 +1,37 @@
+/*
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/i8254.h>
+
+#define TIMER1_VALUE 18 /* 15.6us */
+#define TIMER2_VALUE 0x0a8e /* 440Hz */
+
+int i8254_init(void)
+{
+ /*
+ * Initialize counter 1, used to refresh request signal.
+ * This is required for legacy purpose as some codes like
+ * vgabios utilizes counter 1 to provide delay functionality.
+ */
+ outb(PIT_CMD_CTR1 | PIT_CMD_LOW | PIT_CMD_MODE2,
+ PIT_BASE + PIT_COMMAND);
+ outb(TIMER1_VALUE, PIT_BASE + PIT_T1);
+
+ /*
+ * Initialize counter 2, used to drive the speaker.
+ * To start a beep, set both bit0 and bit1 of port 0x61.
+ * To stop it, clear both bit0 and bit1 of port 0x61.
+ */
+ outb(PIT_CMD_CTR2 | PIT_CMD_BOTH | PIT_CMD_MODE3,
+ PIT_BASE + PIT_COMMAND);
+ outb(TIMER2_VALUE & 0xff, PIT_BASE + PIT_T2);
+ outb(TIMER2_VALUE >> 8, PIT_BASE + PIT_T2);
+
+ return 0;
+}
diff --git a/arch/x86/lib/pcat_interrupts.c b/arch/x86/lib/i8259.c
index a9af87e..b9d0614 100644
--- a/arch/x86/lib/pcat_interrupts.c
+++ b/arch/x86/lib/i8259.c
@@ -20,10 +20,6 @@
#include <asm/ibmpc.h>
#include <asm/interrupt.h>
-#if CONFIG_SYS_NUM_IRQS != 16
-#error "CONFIG_SYS_NUM_IRQS must equal 16 if CONFIG_SYS_NUM_IRQS is defined"
-#endif
-
int i8259_init(void)
{
u8 i;
@@ -32,10 +28,11 @@ int i8259_init(void)
outb(0xff, MASTER_PIC + IMR);
outb(0xff, SLAVE_PIC + IMR);
- /* Master PIC */
- /* Place master PIC interrupts at INT20 */
- /* ICW3, One slave PIC is present */
- outb(ICW1_SEL|ICW1_EICW4, MASTER_PIC + ICW1);
+ /*
+ * Master PIC
+ * Place master PIC interrupts at INT20
+ */
+ outb(ICW1_SEL | ICW1_EICW4, MASTER_PIC + ICW1);
outb(0x20, MASTER_PIC + ICW2);
outb(IR2, MASTER_PIC + ICW3);
outb(ICW4_PM, MASTER_PIC + ICW4);
@@ -43,10 +40,11 @@ int i8259_init(void)
for (i = 0; i < 8; i++)
outb(OCW2_SEOI | i, MASTER_PIC + OCW2);
- /* Slave PIC */
- /* Place slave PIC interrupts at INT28 */
- /* Slave ID */
- outb(ICW1_SEL|ICW1_EICW4, SLAVE_PIC + ICW1);
+ /*
+ * Slave PIC
+ * Place slave PIC interrupts at INT28
+ */
+ outb(ICW1_SEL | ICW1_EICW4, SLAVE_PIC + ICW1);
outb(0x28, SLAVE_PIC + ICW2);
outb(0x02, SLAVE_PIC + ICW3);
outb(ICW4_PM, SLAVE_PIC + ICW4);
@@ -70,7 +68,7 @@ void mask_irq(int irq)
{
int imr_port;
- if (irq >= CONFIG_SYS_NUM_IRQS)
+ if (irq >= SYS_NUM_IRQS)
return;
if (irq > 7)
@@ -85,7 +83,7 @@ void unmask_irq(int irq)
{
int imr_port;
- if (irq >= CONFIG_SYS_NUM_IRQS)
+ if (irq >= SYS_NUM_IRQS)
return;
if (irq > 7)
@@ -98,7 +96,7 @@ void unmask_irq(int irq)
void specific_eoi(int irq)
{
- if (irq >= CONFIG_SYS_NUM_IRQS)
+ if (irq >= SYS_NUM_IRQS)
return;
if (irq > 7) {
@@ -114,9 +112,6 @@ void specific_eoi(int irq)
outb(OCW2_SEOI | irq, MASTER_PIC + OCW2);
}
-#define ELCR1 0x4d0
-#define ELCR2 0x4d1
-
void configure_irq_trigger(int int_num, bool is_level_triggered)
{
u16 int_bits = inb(ELCR1) | (((u16)inb(ELCR2)) << 8);
@@ -131,20 +126,4 @@ void configure_irq_trigger(int int_num, bool is_level_triggered)
debug("%s: try to set interrupts 0x%x\n", __func__, int_bits);
outb((u8)(int_bits & 0xff), ELCR1);
outb((u8)(int_bits >> 8), ELCR2);
-
-#ifdef PARANOID_IRQ_TRIGGERS
- /*
- * Try reading back the new values. This seems like an error but is
- * not
- */
- if (inb(ELCR1) != (int_bits & 0xff)) {
- printf("%s: lower order bits are wrong: want 0x%x, got 0x%x\n",
- __func__, (int_bits & 0xff), inb(ELCR1));
- }
-
- if (inb(ELCR2) != (int_bits >> 8)) {
- printf("%s: higher order bits are wrong: want 0x%x, got 0x%x\n",
- __func__, (int_bits>>8), inb(ELCR2));
- }
-#endif
}
diff --git a/arch/x86/lib/interrupts.c b/arch/x86/lib/interrupts.c
index 146ad11..dd08402 100644
--- a/arch/x86/lib/interrupts.c
+++ b/arch/x86/lib/interrupts.c
@@ -39,7 +39,7 @@ struct irq_action {
unsigned int count;
};
-static struct irq_action irq_handlers[CONFIG_SYS_NUM_IRQS] = { {0} };
+static struct irq_action irq_handlers[SYS_NUM_IRQS] = { {0} };
static int spurious_irq_cnt;
static int spurious_irq;
@@ -47,7 +47,7 @@ void irq_install_handler(int irq, interrupt_handler_t *handler, void *arg)
{
int status;
- if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) {
+ if (irq < 0 || irq >= SYS_NUM_IRQS) {
printf("irq_install_handler: bad irq number %d\n", irq);
return;
}
@@ -75,7 +75,7 @@ void irq_free_handler(int irq)
{
int status;
- if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) {
+ if (irq < 0 || irq >= SYS_NUM_IRQS) {
printf("irq_free_handler: bad irq number %d\n", irq);
return;
}
@@ -97,7 +97,7 @@ void do_irq(int hw_irq)
{
int irq = hw_irq - 0x20;
- if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) {
+ if (irq < 0 || irq >= SYS_NUM_IRQS) {
printf("do_irq: bad irq number %d\n", irq);
return;
}
@@ -130,7 +130,7 @@ int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
printf("Interrupt-Information:\n");
printf("Nr Routine Arg Count\n");
- for (irq = 0; irq < CONFIG_SYS_NUM_IRQS; irq++) {
+ for (irq = 0; irq < SYS_NUM_IRQS; irq++) {
if (irq_handlers[irq].handler != NULL) {
printf("%02d %08lx %08lx %d\n",
irq,
diff --git a/arch/x86/lib/pcat_timer.c b/arch/x86/lib/pcat_timer.c
deleted file mode 100644
index 3545a50..0000000
--- a/arch/x86/lib/pcat_timer.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/i8254.h>
-
-#define TIMER2_VALUE 0x0a8e /* 440Hz */
-
-int pcat_timer_init(void)
-{
- /*
- * initialize 2, used to drive the speaker
- * (to start a beep: write 3 to port 0x61,
- * to stop it again: write 0)
- */
- outb(PIT_CMD_CTR2 | PIT_CMD_BOTH | PIT_CMD_MODE3,
- PIT_BASE + PIT_COMMAND);
- outb(TIMER2_VALUE & 0xff, PIT_BASE + PIT_T2);
- outb(TIMER2_VALUE >> 8, PIT_BASE + PIT_T2);
-
- return 0;
-}
diff --git a/arch/x86/lib/tsc_timer.c b/arch/x86/lib/tsc_timer.c
index 0df1af2..e02b918 100644
--- a/arch/x86/lib/tsc_timer.c
+++ b/arch/x86/lib/tsc_timer.c
@@ -368,9 +368,9 @@ void __udelay(unsigned long usec)
int timer_init(void)
{
-#ifdef CONFIG_SYS_PCAT_TIMER
- /* Set up the PCAT timer if required */
- pcat_timer_init();
+#ifdef CONFIG_I8254_TIMER
+ /* Set up the i8254 timer if required */
+ i8254_init();
#endif
return 0;
generated by cgit v1.1 at 2024-09-20 09:21:07 +0000