diff options
Diffstat (limited to 'arch/mips/loongson')
-rw-r--r-- | arch/mips/loongson/Kconfig | 6 | ||||
-rw-r--r-- | arch/mips/loongson/Platform | 32 | ||||
-rw-r--r-- | arch/mips/loongson/common/Makefile | 1 | ||||
-rw-r--r-- | arch/mips/loongson/common/cs5536/Makefile | 2 | ||||
-rw-r--r-- | arch/mips/loongson/common/cs5536/cs5536_ehci.c | 2 | ||||
-rw-r--r-- | arch/mips/loongson/common/cs5536/cs5536_ide.c | 15 | ||||
-rw-r--r-- | arch/mips/loongson/common/cs5536/cs5536_isa.c | 4 | ||||
-rw-r--r-- | arch/mips/loongson/common/cs5536/cs5536_ohci.c | 2 | ||||
-rw-r--r-- | arch/mips/loongson/common/irq.c | 14 | ||||
-rw-r--r-- | arch/mips/loongson/common/rtc.c | 43 | ||||
-rw-r--r-- | arch/mips/loongson/fuloong-2e/Makefile | 2 | ||||
-rw-r--r-- | arch/mips/loongson/fuloong-2e/irq.c | 13 | ||||
-rw-r--r-- | arch/mips/loongson/lemote-2f/irq.c | 16 |
13 files changed, 116 insertions, 36 deletions
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig index 3df1967dea08..c97ca69b94e0 100644 --- a/arch/mips/loongson/Kconfig +++ b/arch/mips/loongson/Kconfig @@ -23,6 +23,7 @@ config LEMOTE_FULOONG2E select GENERIC_HARDIRQS_NO__DO_IRQ select GENERIC_ISA_DMA_SUPPORT_BROKEN select CPU_HAS_WB + select LOONGSON_MC146818 help Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and an FPGA northbridge @@ -51,6 +52,7 @@ config LEMOTE_MACH2F select SYS_SUPPORTS_64BIT_KERNEL select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN + select LOONGSON_MC146818 help Lemote Loongson 2F family machines utilize the 2F revision of Loongson processor and the AMD CS5536 south bridge. @@ -83,3 +85,7 @@ config LOONGSON_UART_BASE bool default y depends on EARLY_PRINTK || SERIAL_8250 + +config LOONGSON_MC146818 + bool + default n 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/Makefile b/arch/mips/loongson/common/Makefile index cdd2e812ba1a..e526488df655 100644 --- a/arch/mips/loongson/common/Makefile +++ b/arch/mips/loongson/common/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_GENERIC_GPIO) += gpio.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_SERIAL_8250) += serial.o obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o +obj-$(CONFIG_LOONGSON_MC146818) += rtc.o # # Enable CS5536 Virtual Support Module(VSM) to virtulize the PCI configure diff --git a/arch/mips/loongson/common/cs5536/Makefile b/arch/mips/loongson/common/cs5536/Makefile index 510d4cdc2378..f12e64007347 100644 --- a/arch/mips/loongson/common/cs5536/Makefile +++ b/arch/mips/loongson/common/cs5536/Makefile @@ -9,5 +9,3 @@ obj-$(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/cs5536/cs5536_ehci.c b/arch/mips/loongson/common/cs5536/cs5536_ehci.c index eaf8b86e3318..5b5cbba699b3 100644 --- a/arch/mips/loongson/common/cs5536/cs5536_ehci.c +++ b/arch/mips/loongson/common/cs5536/cs5536_ehci.c @@ -49,6 +49,8 @@ void pci_ehci_write_reg(int reg, u32 value) lo |= SOFT_BAR_EHCI_FLAG; _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo); } else if ((value & 0x01) == 0x00) { + _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo); + lo = value; _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo); value &= 0xfffffff0; diff --git a/arch/mips/loongson/common/cs5536/cs5536_ide.c b/arch/mips/loongson/common/cs5536/cs5536_ide.c index 9a96b5664c78..681d1291a2c7 100644 --- a/arch/mips/loongson/common/cs5536/cs5536_ide.c +++ b/arch/mips/loongson/common/cs5536/cs5536_ide.c @@ -51,6 +51,7 @@ void pci_ide_write_reg(int reg, u32 value) lo |= SOFT_BAR_IDE_FLAG; _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo); } else if (value & 0x01) { + _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo); lo = (value & 0xfffffff0) | 0x1; _wrmsr(IDE_MSR_REG(IDE_IO_BAR), hi, lo); @@ -65,19 +66,30 @@ void pci_ide_write_reg(int reg, u32 value) _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo); lo |= 0x01; _wrmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), hi, lo); - } else + } else { + _rdmsr(IDE_MSR_REG(IDE_CFG), &hi, &lo); + lo = value; _wrmsr(IDE_MSR_REG(IDE_CFG), hi, lo); + } break; case PCI_IDE_DTC_REG: + _rdmsr(IDE_MSR_REG(IDE_DTC), &hi, &lo); + lo = value; _wrmsr(IDE_MSR_REG(IDE_DTC), hi, lo); break; case PCI_IDE_CAST_REG: + _rdmsr(IDE_MSR_REG(IDE_CAST), &hi, &lo); + lo = value; _wrmsr(IDE_MSR_REG(IDE_CAST), hi, lo); break; case PCI_IDE_ETC_REG: + _rdmsr(IDE_MSR_REG(IDE_ETC), &hi, &lo); + lo = value; _wrmsr(IDE_MSR_REG(IDE_ETC), hi, lo); break; case PCI_IDE_PM_REG: + _rdmsr(IDE_MSR_REG(IDE_INTERNAL_PM), &hi, &lo); + lo = value; _wrmsr(IDE_MSR_REG(IDE_INTERNAL_PM), hi, lo); break; default: @@ -167,6 +179,7 @@ u32 pci_ide_read_reg(int reg) case PCI_IDE_ETC_REG: _rdmsr(IDE_MSR_REG(IDE_ETC), &hi, &lo); conf_data = lo; + break; case PCI_IDE_PM_REG: _rdmsr(IDE_MSR_REG(IDE_INTERNAL_PM), &hi, &lo); conf_data = lo; diff --git a/arch/mips/loongson/common/cs5536/cs5536_isa.c b/arch/mips/loongson/common/cs5536/cs5536_isa.c index f5c0818831b2..4d9f65abeaff 100644 --- a/arch/mips/loongson/common/cs5536/cs5536_isa.c +++ b/arch/mips/loongson/common/cs5536/cs5536_isa.c @@ -61,7 +61,7 @@ static void divil_lbar_enable(void) for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) { _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo); hi |= 0x01; - _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo); + _wrmsr(DIVIL_MSR_REG(offset), hi, lo); } } @@ -76,7 +76,7 @@ static void divil_lbar_disable(void) for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) { _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo); hi &= ~0x01; - _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo); + _wrmsr(DIVIL_MSR_REG(offset), hi, lo); } } diff --git a/arch/mips/loongson/common/cs5536/cs5536_ohci.c b/arch/mips/loongson/common/cs5536/cs5536_ohci.c index db5900aadd6b..bdedf512baf7 100644 --- a/arch/mips/loongson/common/cs5536/cs5536_ohci.c +++ b/arch/mips/loongson/common/cs5536/cs5536_ohci.c @@ -49,6 +49,8 @@ void pci_ohci_write_reg(int reg, u32 value) lo |= SOFT_BAR_OHCI_FLAG; _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo); } else if ((value & 0x01) == 0x00) { + _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo); + lo = value; _wrmsr(USB_MSR_REG(USB_OHCI), hi, lo); value &= 0xfffffff0; 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/common/rtc.c b/arch/mips/loongson/common/rtc.c new file mode 100644 index 000000000000..a90d87c01555 --- /dev/null +++ b/arch/mips/loongson/common/rtc.c @@ -0,0 +1,43 @@ +/* + * Lemote Fuloong platform support + * + * Copyright(c) 2010 Arnaud Patard <apatard@mandriva.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/mc146818rtc.h> + +struct resource loongson_rtc_resources[] = { + { + .start = RTC_PORT(0), + .end = RTC_PORT(1), + .flags = IORESOURCE_IO, + }, { + .start = RTC_IRQ, + .end = RTC_IRQ, + .flags = IORESOURCE_IRQ, + } +}; + +static struct platform_device loongson_rtc_device = { + .name = "rtc_cmos", + .id = -1, + .resource = loongson_rtc_resources, + .num_resources = ARRAY_SIZE(loongson_rtc_resources), +}; + + +static int __init loongson_rtc_platform_init(void) +{ + platform_device_register(&loongson_rtc_device); + return 0; +} + +device_initcall(loongson_rtc_platform_init); 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(); |