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-rw-r--r--arch/mips/loongson/Platform32
-rw-r--r--arch/mips/loongson/common/cs5536/Makefile2
-rw-r--r--arch/mips/loongson/common/irq.c14
-rw-r--r--arch/mips/loongson/fuloong-2e/Makefile2
-rw-r--r--arch/mips/loongson/fuloong-2e/irq.c13
-rw-r--r--arch/mips/loongson/lemote-2f/irq.c16
6 files changed, 46 insertions, 33 deletions
diff --git a/arch/mips/loongson/Platform b/arch/mips/loongson/Platform
new file mode 100644
index 000000000000..29692e5433b1
--- /dev/null
+++ b/arch/mips/loongson/Platform
@@ -0,0 +1,32 @@
+#
+# Loongson Processors' Support
+#
+
+# Only gcc >= 4.4 have Loongson specific support
+cflags-$(CONFIG_CPU_LOONGSON2) += -Wa,--trap
+cflags-$(CONFIG_CPU_LOONGSON2E) += \
+ $(call cc-option,-march=loongson2e,-march=r4600)
+cflags-$(CONFIG_CPU_LOONGSON2F) += \
+ $(call cc-option,-march=loongson2f,-march=r4600)
+# Enable the workarounds for Loongson2f
+ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS
+ ifeq ($(call as-option,-Wa$(comma)-mfix-loongson2f-nop,),)
+ $(error only binutils >= 2.20.2 have needed option -mfix-loongson2f-nop)
+ else
+ cflags-$(CONFIG_CPU_NOP_WORKAROUNDS) += -Wa$(comma)-mfix-loongson2f-nop
+ endif
+ ifeq ($(call as-option,-Wa$(comma)-mfix-loongson2f-jump,),)
+ $(error only binutils >= 2.20.2 have needed option -mfix-loongson2f-jump)
+ else
+ cflags-$(CONFIG_CPU_JUMP_WORKAROUNDS) += -Wa$(comma)-mfix-loongson2f-jump
+ endif
+endif
+
+#
+# Loongson Machines' Support
+#
+
+platform-$(CONFIG_MACH_LOONGSON) += loongson/
+cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson -mno-branch-likely
+load-$(CONFIG_LEMOTE_FULOONG2E) += 0xffffffff80100000
+load-$(CONFIG_LEMOTE_MACH2F) += 0xffffffff80200000
diff --git a/arch/mips/loongson/common/cs5536/Makefile b/arch/mips/loongson/common/cs5536/Makefile
index 510d4cdc2378..f12e64007347 100644
--- a/arch/mips/loongson/common/cs5536/Makefile
+++ b/arch/mips/loongson/common/cs5536/Makefile
@@ -9,5 +9,3 @@ obj-$(CONFIG_CS5536) += cs5536_pci.o cs5536_ide.o cs5536_acc.o cs5536_ohci.o \
# Enable cs5536 mfgpt Timer
#
obj-$(CONFIG_CS5536_MFGPT) += cs5536_mfgpt.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/loongson/common/irq.c b/arch/mips/loongson/common/irq.c
index 20e732831978..5897471dedca 100644
--- a/arch/mips/loongson/common/irq.c
+++ b/arch/mips/loongson/common/irq.c
@@ -21,19 +21,16 @@ void bonito_irqdispatch(void)
/* workaround the IO dma problem: let cpu looping to allow DMA finish */
int_status = LOONGSON_INTISR;
- if (int_status & (1 << 10)) {
- while (int_status & (1 << 10)) {
- udelay(1);
- int_status = LOONGSON_INTISR;
- }
+ while (int_status & (1 << 10)) {
+ udelay(1);
+ int_status = LOONGSON_INTISR;
}
/* Get pending sources, masked by current enables */
int_status = LOONGSON_INTISR & LOONGSON_INTEN;
- if (int_status != 0) {
+ if (int_status) {
i = __ffs(int_status);
- int_status &= ~(1 << i);
do_IRQ(LOONGSON_IRQ_BASE + i);
}
}
@@ -56,9 +53,6 @@ void __init arch_init_irq(void)
*/
clear_c0_status(ST0_IM | ST0_BEV);
- /* setting irq trigger mode */
- set_irq_trigger_mode();
-
/* no steer */
LOONGSON_INTSTEER = 0;
diff --git a/arch/mips/loongson/fuloong-2e/Makefile b/arch/mips/loongson/fuloong-2e/Makefile
index 3aba5fcc09dc..b7622720c1ad 100644
--- a/arch/mips/loongson/fuloong-2e/Makefile
+++ b/arch/mips/loongson/fuloong-2e/Makefile
@@ -3,5 +3,3 @@
#
obj-y += irq.o reset.o
-
-EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c
index 320e9379bdd7..d61a04222b87 100644
--- a/arch/mips/loongson/fuloong-2e/irq.c
+++ b/arch/mips/loongson/fuloong-2e/irq.c
@@ -30,7 +30,7 @@ asmlinkage void mach_irq_dispatch(unsigned int pending)
if (pending & CAUSEF_IP7)
do_IRQ(MIPS_CPU_IRQ_BASE + 7);
else if (pending & CAUSEF_IP6) /* perf counter loverflow */
- do_IRQ(LOONGSON2_PERFCNT_IRQ);
+ do_perfcnt_IRQ();
else if (pending & CAUSEF_IP5)
i8259_irqdispatch();
else if (pending & CAUSEF_IP2)
@@ -44,13 +44,6 @@ static struct irqaction cascade_irqaction = {
.name = "cascade",
};
-void __init set_irq_trigger_mode(void)
-{
- /* most bonito irq should be level triggered */
- LOONGSON_INTEDGE = LOONGSON_ICU_SYSTEMERR | LOONGSON_ICU_MASTERERR |
- LOONGSON_ICU_RETRYERR | LOONGSON_ICU_MBOXES;
-}
-
void __init mach_init_irq(void)
{
/* init all controller
@@ -59,6 +52,10 @@ void __init mach_init_irq(void)
* 32-63 ------> bonito irq
*/
+ /* most bonito irq should be level triggered */
+ LOONGSON_INTEDGE = LOONGSON_ICU_SYSTEMERR | LOONGSON_ICU_MASTERERR |
+ LOONGSON_ICU_RETRYERR | LOONGSON_ICU_MBOXES;
+
/* Sets the first-level interrupt dispatcher. */
mips_cpu_irq_init();
init_i8259_irqs();
diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c
index 1d8b4d28a058..081db102bb98 100644
--- a/arch/mips/loongson/lemote-2f/irq.c
+++ b/arch/mips/loongson/lemote-2f/irq.c
@@ -19,7 +19,6 @@
#include <machine.h>
#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* cpu timer */
-#define LOONGSON_PERFCNT_IRQ (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */
#define LOONGSON_NORTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 6) /* bonito */
#define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 3) /* cpu serial port */
#define LOONGSON_SOUTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 2) /* i8259 */
@@ -79,9 +78,7 @@ void mach_irq_dispatch(unsigned int pending)
if (pending & CAUSEF_IP7)
do_IRQ(LOONGSON_TIMER_IRQ);
else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */
-#if defined(CONFIG_OPROFILE) || defined(CONFIG_OPROFILE_MODULE)
- do_IRQ(LOONGSON2_PERFCNT_IRQ);
-#endif
+ do_perfcnt_IRQ();
bonito_irqdispatch();
} else if (pending & CAUSEF_IP3) /* CPU UART */
do_IRQ(LOONGSON_UART_IRQ);
@@ -91,13 +88,6 @@ void mach_irq_dispatch(unsigned int pending)
spurious_interrupt();
}
-void __init set_irq_trigger_mode(void)
-{
- /* setup cs5536 as high level trigger */
- LOONGSON_INTPOL = LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1;
- LOONGSON_INTEDGE &= ~(LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1);
-}
-
static irqreturn_t ip6_action(int cpl, void *dev_id)
{
return IRQ_HANDLED;
@@ -122,6 +112,10 @@ void __init mach_init_irq(void)
* 32-63 ------> bonito irq
*/
+ /* setup cs5536 as high level trigger */
+ LOONGSON_INTPOL = LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1;
+ LOONGSON_INTEDGE &= ~(LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1);
+
/* Sets the first-level interrupt dispatcher. */
mips_cpu_irq_init();
init_i8259_irqs();
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 23:18:08 +0100