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-rw-r--r--arch/mips/loongson/Kconfig108
-rw-r--r--arch/mips/loongson/Makefile6
-rw-r--r--arch/mips/loongson/common/Makefile18
-rw-r--r--arch/mips/loongson/common/bonito-irq.c13
-rw-r--r--arch/mips/loongson/common/cmdline.c4
-rw-r--r--arch/mips/loongson/common/cs5536/Makefile13
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_acc.c140
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_ehci.c158
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_ide.c179
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_isa.c316
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_mfgpt.c217
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_ohci.c147
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_pci.c87
-rw-r--r--arch/mips/loongson/common/early_printk.c17
-rw-r--r--arch/mips/loongson/common/env.c3
-rw-r--r--arch/mips/loongson/common/init.c19
-rw-r--r--arch/mips/loongson/common/irq.c12
-rw-r--r--arch/mips/loongson/common/machtype.c25
-rw-r--r--arch/mips/loongson/common/mem.c91
-rw-r--r--arch/mips/loongson/common/pci.c20
-rw-r--r--arch/mips/loongson/common/platform.c30
-rw-r--r--arch/mips/loongson/common/pm.c161
-rw-r--r--arch/mips/loongson/common/reset.c2
-rw-r--r--arch/mips/loongson/common/serial.c76
-rw-r--r--arch/mips/loongson/common/time.c3
-rw-r--r--arch/mips/loongson/common/uart_base.c45
-rw-r--r--arch/mips/loongson/fuloong-2e/irq.c4
-rw-r--r--arch/mips/loongson/fuloong-2e/reset.c4
-rw-r--r--arch/mips/loongson/lemote-2f/Makefile11
-rw-r--r--arch/mips/loongson/lemote-2f/ec_kb3310b.c130
-rw-r--r--arch/mips/loongson/lemote-2f/ec_kb3310b.h188
-rw-r--r--arch/mips/loongson/lemote-2f/irq.c134
-rw-r--r--arch/mips/loongson/lemote-2f/pm.c149
-rw-r--r--arch/mips/loongson/lemote-2f/reset.c159
34 files changed, 2613 insertions, 76 deletions
diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index d45092505fa1..3df1967dea08 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -1,31 +1,85 @@
1choice 1choice
2 prompt "Machine Type" 2 prompt "Machine Type"
3 depends on MACH_LOONGSON 3 depends on MACH_LOONGSON
4 4
5config LEMOTE_FULOONG2E 5config LEMOTE_FULOONG2E
6 bool "Lemote Fuloong(2e) mini-PC" 6 bool "Lemote Fuloong(2e) mini-PC"
7 select ARCH_SPARSEMEM_ENABLE 7 select ARCH_SPARSEMEM_ENABLE
8 select CEVT_R4K 8 select CEVT_R4K
9 select CSRC_R4K 9 select CSRC_R4K
10 select SYS_HAS_CPU_LOONGSON2E 10 select SYS_HAS_CPU_LOONGSON2E
11 select DMA_NONCOHERENT 11 select DMA_NONCOHERENT
12 select BOOT_ELF32 12 select BOOT_ELF32
13 select BOARD_SCACHE 13 select BOARD_SCACHE
14 select HW_HAS_PCI 14 select HW_HAS_PCI
15 select I8259 15 select I8259
16 select ISA 16 select ISA
17 select IRQ_CPU 17 select IRQ_CPU
18 select SYS_SUPPORTS_32BIT_KERNEL 18 select SYS_SUPPORTS_32BIT_KERNEL
19 select SYS_SUPPORTS_64BIT_KERNEL 19 select SYS_SUPPORTS_64BIT_KERNEL
20 select SYS_SUPPORTS_LITTLE_ENDIAN 20 select SYS_SUPPORTS_LITTLE_ENDIAN
21 select SYS_SUPPORTS_HIGHMEM 21 select SYS_SUPPORTS_HIGHMEM
22 select SYS_HAS_EARLY_PRINTK 22 select SYS_HAS_EARLY_PRINTK
23 select GENERIC_HARDIRQS_NO__DO_IRQ 23 select GENERIC_HARDIRQS_NO__DO_IRQ
24 select GENERIC_ISA_DMA_SUPPORT_BROKEN 24 select GENERIC_ISA_DMA_SUPPORT_BROKEN
25 select CPU_HAS_WB 25 select CPU_HAS_WB
26 help 26 help
27 Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and 27 Lemote Fuloong(2e) mini-PC board based on the Chinese Loongson-2E CPU and
28 an FPGA northbridge 28 an FPGA northbridge
29 29
30 Lemote Fuloong(2e) mini PC have a VIA686B south bridge. 30 Lemote Fuloong(2e) mini PC have a VIA686B south bridge.
31
32config LEMOTE_MACH2F
33 bool "Lemote Loongson 2F family machines"
34 select ARCH_SPARSEMEM_ENABLE
35 select BOARD_SCACHE
36 select BOOT_ELF32
37 select CEVT_R4K if ! MIPS_EXTERNAL_TIMER
38 select CPU_HAS_WB
39 select CS5536
40 select CSRC_R4K if ! MIPS_EXTERNAL_TIMER
41 select DMA_NONCOHERENT
42 select GENERIC_HARDIRQS_NO__DO_IRQ
43 select GENERIC_ISA_DMA_SUPPORT_BROKEN
44 select HW_HAS_PCI
45 select I8259
46 select IRQ_CPU
47 select ISA
48 select SYS_HAS_CPU_LOONGSON2F
49 select SYS_HAS_EARLY_PRINTK
50 select SYS_SUPPORTS_32BIT_KERNEL
51 select SYS_SUPPORTS_64BIT_KERNEL
52 select SYS_SUPPORTS_HIGHMEM
53 select SYS_SUPPORTS_LITTLE_ENDIAN
54 help
55 Lemote Loongson 2F family machines utilize the 2F revision of
56 Loongson processor and the AMD CS5536 south bridge.
57
58 These family machines include fuloong2f mini PC, yeeloong2f notebook,
59 LingLoong allinone PC and so forth.
31endchoice 60endchoice
61
62config CS5536
63 bool
64
65config CS5536_MFGPT
66 bool "CS5536 MFGPT Timer"
67 depends on CS5536
68 select MIPS_EXTERNAL_TIMER
69 help
70 This option enables the mfgpt0 timer of AMD CS5536.
71
72 If you want to enable the Loongson2 CPUFreq Driver, Please enable
73 this option at first, otherwise, You will get wrong system time.
74
75 If unsure, say Yes.
76
77config LOONGSON_SUSPEND
78 bool
79 default y
80 depends on CPU_SUPPORTS_CPUFREQ && SUSPEND
81
82config LOONGSON_UART_BASE
83 bool
84 default y
85 depends on EARLY_PRINTK || SERIAL_8250
diff --git a/arch/mips/loongson/Makefile b/arch/mips/loongson/Makefile
index 39048c455d7d..2b76cb0fb07d 100644
--- a/arch/mips/loongson/Makefile
+++ b/arch/mips/loongson/Makefile
@@ -9,3 +9,9 @@ obj-$(CONFIG_MACH_LOONGSON) += common/
9# 9#
10 10
11obj-$(CONFIG_LEMOTE_FULOONG2E) += fuloong-2e/ 11obj-$(CONFIG_LEMOTE_FULOONG2E) += fuloong-2e/
12
13#
14# Lemote loongson2f family machines
15#
16
17obj-$(CONFIG_LEMOTE_MACH2F) += lemote-2f/
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index 656b3cc0a2a6..7668c4de1151 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -3,9 +3,23 @@
3# 3#
4 4
5obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \ 5obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \
6 pci.o bonito-irq.o mem.o machtype.o 6 pci.o bonito-irq.o mem.o machtype.o platform.o
7 7
8# 8#
9# Early printk support 9# Serial port support
10# 10#
11obj-$(CONFIG_EARLY_PRINTK) += early_printk.o 11obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
12obj-$(CONFIG_SERIAL_8250) += serial.o
13obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o
14
15#
16# Enable CS5536 Virtual Support Module(VSM) to virtulize the PCI configure
17# space
18#
19obj-$(CONFIG_CS5536) += cs5536/
20
21#
22# Suspend Support
23#
24
25obj-$(CONFIG_LOONGSON_SUSPEND) += pm.o
diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c
index 3e31e7ad713e..2dc2a4cc632a 100644
--- a/arch/mips/loongson/common/bonito-irq.c
+++ b/arch/mips/loongson/common/bonito-irq.c
@@ -12,18 +12,19 @@
12 * option) any later version. 12 * option) any later version.
13 */ 13 */
14#include <linux/interrupt.h> 14#include <linux/interrupt.h>
15#include <linux/compiler.h>
15 16
16#include <loongson.h> 17#include <loongson.h>
17 18
18static inline void bonito_irq_enable(unsigned int irq) 19static inline void bonito_irq_enable(unsigned int irq)
19{ 20{
20 BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE)); 21 LOONGSON_INTENSET = (1 << (irq - LOONGSON_IRQ_BASE));
21 mmiowb(); 22 mmiowb();
22} 23}
23 24
24static inline void bonito_irq_disable(unsigned int irq) 25static inline void bonito_irq_disable(unsigned int irq)
25{ 26{
26 BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE)); 27 LOONGSON_INTENCLR = (1 << (irq - LOONGSON_IRQ_BASE));
27 mmiowb(); 28 mmiowb();
28} 29}
29 30
@@ -35,7 +36,7 @@ static struct irq_chip bonito_irq_type = {
35 .unmask = bonito_irq_enable, 36 .unmask = bonito_irq_enable,
36}; 37};
37 38
38static struct irqaction dma_timeout_irqaction = { 39static struct irqaction __maybe_unused dma_timeout_irqaction = {
39 .handler = no_action, 40 .handler = no_action,
40 .name = "dma_timeout", 41 .name = "dma_timeout",
41}; 42};
@@ -44,8 +45,10 @@ void bonito_irq_init(void)
44{ 45{
45 u32 i; 46 u32 i;
46 47
47 for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++) 48 for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
48 set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq); 49 set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
49 50
50 setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction); 51#ifdef CONFIG_CPU_LOONGSON2E
52 setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
53#endif
51} 54}
diff --git a/arch/mips/loongson/common/cmdline.c b/arch/mips/loongson/common/cmdline.c
index 75f1b243ee4e..7ad47f227477 100644
--- a/arch/mips/loongson/common/cmdline.c
+++ b/arch/mips/loongson/common/cmdline.c
@@ -9,7 +9,7 @@
9 * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology 9 * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
10 * Author: Fuxin Zhang, zhangfx@lemote.com 10 * Author: Fuxin Zhang, zhangfx@lemote.com
11 * 11 *
12 * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology 12 * Copyright (C) 2009 Lemote Inc.
13 * Author: Wu Zhangjin, wuzj@lemote.com 13 * Author: Wu Zhangjin, wuzj@lemote.com
14 * 14 *
15 * This program is free software; you can redistribute it and/or modify it 15 * This program is free software; you can redistribute it and/or modify it
@@ -49,4 +49,6 @@ void __init prom_init_cmdline(void)
49 strcat(arcs_cmdline, " console=ttyS0,115200"); 49 strcat(arcs_cmdline, " console=ttyS0,115200");
50 if ((strstr(arcs_cmdline, "root=")) == NULL) 50 if ((strstr(arcs_cmdline, "root=")) == NULL)
51 strcat(arcs_cmdline, " root=/dev/hda1"); 51 strcat(arcs_cmdline, " root=/dev/hda1");
52
53 prom_init_machtype();
52} 54}
diff --git a/arch/mips/loongson/common/cs5536/Makefile b/arch/mips/loongson/common/cs5536/Makefile
new file mode 100644
index 000000000000..510d4cdc2378
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/Makefile
@@ -0,0 +1,13 @@
1#
2# Makefile for CS5536 support.
3#
4
5obj-$(CONFIG_CS5536) += cs5536_pci.o cs5536_ide.o cs5536_acc.o cs5536_ohci.o \
6 cs5536_isa.o cs5536_ehci.o
7
8#
9# Enable cs5536 mfgpt Timer
10#
11obj-$(CONFIG_CS5536_MFGPT) += cs5536_mfgpt.o
12
13EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/loongson/common/cs5536/cs5536_acc.c b/arch/mips/loongson/common/cs5536/cs5536_acc.c
new file mode 100644
index 000000000000..b49485f187e0
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_acc.c
@@ -0,0 +1,140 @@
1/*
2 * the ACC Virtual Support Module of AMD CS5536
3 *
4 * Copyright (C) 2007 Lemote, Inc.
5 * Author : jlliu, liujl@lemote.com
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15
16#include <cs5536/cs5536.h>
17#include <cs5536/cs5536_pci.h>
18
19void pci_acc_write_reg(int reg, u32 value)
20{
21 u32 hi = 0, lo = value;
22
23 switch (reg) {
24 case PCI_COMMAND:
25 _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
26 if (value & PCI_COMMAND_MASTER)
27 lo |= (0x03 << 8);
28 else
29 lo &= ~(0x03 << 8);
30 _wrmsr(GLIU_MSR_REG(GLIU_PAE), hi, lo);
31 break;
32 case PCI_STATUS:
33 if (value & PCI_STATUS_PARITY) {
34 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
35 if (lo & SB_PARE_ERR_FLAG) {
36 lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
37 _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
38 }
39 }
40 break;
41 case PCI_BAR0_REG:
42 if (value == PCI_BAR_RANGE_MASK) {
43 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
44 lo |= SOFT_BAR_ACC_FLAG;
45 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
46 } else if (value & 0x01) {
47 value &= 0xfffffffc;
48 hi = 0xA0000000 | ((value & 0x000ff000) >> 12);
49 lo = 0x000fff80 | ((value & 0x00000fff) << 20);
50 _wrmsr(GLIU_MSR_REG(GLIU_IOD_BM1), hi, lo);
51 }
52 break;
53 case PCI_ACC_INT_REG:
54 _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
55 /* disable all the usb interrupt in PIC */
56 lo &= ~(0xf << PIC_YSEL_LOW_ACC_SHIFT);
57 if (value) /* enable all the acc interrupt in PIC */
58 lo |= (CS5536_ACC_INTR << PIC_YSEL_LOW_ACC_SHIFT);
59 _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
60 break;
61 default:
62 break;
63 }
64}
65
66u32 pci_acc_read_reg(int reg)
67{
68 u32 hi, lo;
69 u32 conf_data = 0;
70
71 switch (reg) {
72 case PCI_VENDOR_ID:
73 conf_data =
74 CFG_PCI_VENDOR_ID(CS5536_ACC_DEVICE_ID, CS5536_VENDOR_ID);
75 break;
76 case PCI_COMMAND:
77 _rdmsr(GLIU_MSR_REG(GLIU_IOD_BM1), &hi, &lo);
78 if (((lo & 0xfff00000) || (hi & 0x000000ff))
79 && ((hi & 0xf0000000) == 0xa0000000))
80 conf_data |= PCI_COMMAND_IO;
81 _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
82 if ((lo & 0x300) == 0x300)
83 conf_data |= PCI_COMMAND_MASTER;
84 break;
85 case PCI_STATUS:
86 conf_data |= PCI_STATUS_66MHZ;
87 conf_data |= PCI_STATUS_FAST_BACK;
88 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
89 if (lo & SB_PARE_ERR_FLAG)
90 conf_data |= PCI_STATUS_PARITY;
91 conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
92 break;
93 case PCI_CLASS_REVISION:
94 _rdmsr(ACC_MSR_REG(ACC_CAP), &hi, &lo);
95 conf_data = lo & 0x000000ff;
96 conf_data |= (CS5536_ACC_CLASS_CODE << 8);
97 break;
98 case PCI_CACHE_LINE_SIZE:
99 conf_data =
100 CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
101 PCI_NORMAL_LATENCY_TIMER);
102 break;
103 case PCI_BAR0_REG:
104 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
105 if (lo & SOFT_BAR_ACC_FLAG) {
106 conf_data = CS5536_ACC_RANGE |
107 PCI_BASE_ADDRESS_SPACE_IO;
108 lo &= ~SOFT_BAR_ACC_FLAG;
109 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
110 } else {
111 _rdmsr(GLIU_MSR_REG(GLIU_IOD_BM1), &hi, &lo);
112 conf_data = (hi & 0x000000ff) << 12;
113 conf_data |= (lo & 0xfff00000) >> 20;
114 conf_data |= 0x01;
115 conf_data &= ~0x02;
116 }
117 break;
118 case PCI_CARDBUS_CIS:
119 conf_data = PCI_CARDBUS_CIS_POINTER;
120 break;
121 case PCI_SUBSYSTEM_VENDOR_ID:
122 conf_data =
123 CFG_PCI_VENDOR_ID(CS5536_ACC_SUB_ID, CS5536_SUB_VENDOR_ID);
124 break;
125 case PCI_ROM_ADDRESS:
126 conf_data = PCI_EXPANSION_ROM_BAR;
127 break;
128 case PCI_CAPABILITY_LIST:
129 conf_data = PCI_CAPLIST_USB_POINTER;
130 break;
131 case PCI_INTERRUPT_LINE:
132 conf_data =
133 CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_ACC_INTR);
134 break;
135 default:
136 break;
137 }
138
139 return conf_data;
140}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_ehci.c b/arch/mips/loongson/common/cs5536/cs5536_ehci.c
new file mode 100644
index 000000000000..74f9c59d36af
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_ehci.c
@@ -0,0 +1,158 @@
1/*
2 * the EHCI Virtual Support Module of AMD CS5536
3 *
4 * Copyright (C) 2007 Lemote, Inc.
5 * Author : jlliu, liujl@lemote.com
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15
16#include <cs5536/cs5536.h>
17#include <cs5536/cs5536_pci.h>
18
19void pci_ehci_write_reg(int reg, u32 value)
20{
21 u32 hi = 0, lo = value;
22
23 switch (reg) {
24 case PCI_COMMAND:
25 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
26 if (value & PCI_COMMAND_MASTER)
27 hi |= PCI_COMMAND_MASTER;
28 else
29 hi &= ~PCI_COMMAND_MASTER;
30
31 if (value & PCI_COMMAND_MEMORY)
32 hi |= PCI_COMMAND_MEMORY;
33 else
34 hi &= ~PCI_COMMAND_MEMORY;
35 _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
36 break;
37 case PCI_STATUS:
38 if (value & PCI_STATUS_PARITY) {
39 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
40 if (lo & SB_PARE_ERR_FLAG) {
41 lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
42 _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
43 }
44 }
45 break;
46 case PCI_BAR0_REG:
47 if (value == PCI_BAR_RANGE_MASK) {
48 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
49 lo |= SOFT_BAR_EHCI_FLAG;
50 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
51 } else if ((value & 0x01) == 0x00) {
52 _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
53
54 value &= 0xfffffff0;
55 hi = 0x40000000 | ((value & 0xff000000) >> 24);
56 lo = 0x000fffff | ((value & 0x00fff000) << 8);
57 _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM4), hi, lo);
58 }
59 break;
60 case PCI_EHCI_LEGSMIEN_REG:
61 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
62 hi &= 0x003f0000;
63 hi |= (value & 0x3f) << 16;
64 _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
65 break;
66 case PCI_EHCI_FLADJ_REG:
67 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
68 hi &= ~0x00003f00;
69 hi |= value & 0x00003f00;
70 _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
71 break;
72 default:
73 break;
74 }
75}
76
77u32 pci_ehci_read_reg(int reg)
78{
79 u32 conf_data = 0;
80 u32 hi, lo;
81
82 switch (reg) {
83 case PCI_VENDOR_ID:
84 conf_data =
85 CFG_PCI_VENDOR_ID(CS5536_EHCI_DEVICE_ID, CS5536_VENDOR_ID);
86 break;
87 case PCI_COMMAND:
88 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
89 if (hi & PCI_COMMAND_MASTER)
90 conf_data |= PCI_COMMAND_MASTER;
91 if (hi & PCI_COMMAND_MEMORY)
92 conf_data |= PCI_COMMAND_MEMORY;
93 break;
94 case PCI_STATUS:
95 conf_data |= PCI_STATUS_66MHZ;
96 conf_data |= PCI_STATUS_FAST_BACK;
97 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
98 if (lo & SB_PARE_ERR_FLAG)
99 conf_data |= PCI_STATUS_PARITY;
100 conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
101 break;
102 case PCI_CLASS_REVISION:
103 _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
104 conf_data = lo & 0x000000ff;
105 conf_data |= (CS5536_EHCI_CLASS_CODE << 8);
106 break;
107 case PCI_CACHE_LINE_SIZE:
108 conf_data =
109 CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
110 PCI_NORMAL_LATENCY_TIMER);
111 break;
112 case PCI_BAR0_REG:
113 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
114 if (lo & SOFT_BAR_EHCI_FLAG) {
115 conf_data = CS5536_EHCI_RANGE |
116 PCI_BASE_ADDRESS_SPACE_MEMORY;
117 lo &= ~SOFT_BAR_EHCI_FLAG;
118 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
119 } else {
120 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
121 conf_data = lo & 0xfffff000;
122 }
123 break;
124 case PCI_CARDBUS_CIS:
125 conf_data = PCI_CARDBUS_CIS_POINTER;
126 break;
127 case PCI_SUBSYSTEM_VENDOR_ID:
128 conf_data =
129 CFG_PCI_VENDOR_ID(CS5536_EHCI_SUB_ID, CS5536_SUB_VENDOR_ID);
130 break;
131 case PCI_ROM_ADDRESS:
132 conf_data = PCI_EXPANSION_ROM_BAR;
133 break;
134 case PCI_CAPABILITY_LIST:
135 conf_data = PCI_CAPLIST_USB_POINTER;
136 break;
137 case PCI_INTERRUPT_LINE:
138 conf_data =
139 CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
140 break;
141 case PCI_EHCI_LEGSMIEN_REG:
142 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
143 conf_data = (hi & 0x003f0000) >> 16;
144 break;
145 case PCI_EHCI_LEGSMISTS_REG:
146 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
147 conf_data = (hi & 0x3f000000) >> 24;
148 break;
149 case PCI_EHCI_FLADJ_REG:
150 _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
151 conf_data = hi & 0x00003f00;
152 break;
153 default:
154 break;
155 }
156
157 return conf_data;
158}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_ide.c b/arch/mips/loongson/common/cs5536/cs5536_ide.c
new file mode 100644
index 000000000000..3f61594b3884
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_ide.c
@@ -0,0 +1,179 @@
1/*
2 * the IDE Virtual Support Module of AMD CS5536
3 *
4 * Copyright (C) 2007 Lemote, Inc.
5 * Author : jlliu, liujl@lemote.com
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15
16#include <cs5536/cs5536.h>
17#include <cs5536/cs5536_pci.h>
18
19void pci_ide_write_reg(int reg, u32 value)
20{
21 u32 hi = 0, lo = value;
22
23 switch (reg) {
24 case PCI_COMMAND:
25 _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
26 if (value & PCI_COMMAND_MASTER)
27 lo |= (0x03 << 4);
28 else
29 lo &= ~(0x03 << 4);
30 _wrmsr(GLIU_MSR_REG(GLIU_PAE), hi, lo);
31 break;
32 case PCI_STATUS:
33 if (value & PCI_STATUS_PARITY) {
34 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
35 if (lo & SB_PARE_ERR_FLAG) {
36 lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
37 _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
38 }
39 }
40 break;
41 case PCI_CACHE_LINE_SIZE:
42 value &= 0x0000ff00;
43 _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
44 hi &= 0xffffff00;
45 hi |= (value >> 8);
46 _wrmsr(SB_MSR_REG(SB_CTRL), hi, lo);
47 break;
48 case PCI_BAR4_REG:
49 if (value == PCI_BAR_RANGE_MASK) {
50 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
51 lo |= SOFT_BAR_IDE_FLAG;
52 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
53 } else if (value & 0x01) {
54 lo = (value & 0xfffffff0) | 0x1;
55 _wrmsr(IDE_MSR_REG(IDE_IO_BAR), hi, lo);
56
57 value &= 0xfffffffc;
58 hi = 0x60000000 | ((value & 0x000ff000) >> 12);
59 lo = 0x000ffff0 | ((value & 0x00000fff) << 20);
60 _wrmsr(GLIU_MSR_REG(GLIU_IOD_BM2), hi, lo);
61 }
62 break;
63 case PCI_IDE_CFG_REG:
64 if (value == CS5536_IDE_FLASH_SIGNATURE) {
65 _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo);
66 lo |= 0x01;
67 _wrmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), hi, lo);
68 } else
69 _wrmsr(IDE_MSR_REG(IDE_CFG), hi, lo);
70 break;
71 case PCI_IDE_DTC_REG:
72 _wrmsr(IDE_MSR_REG(IDE_DTC), hi, lo);
73 break;
74 case PCI_IDE_CAST_REG:
75 _wrmsr(IDE_MSR_REG(IDE_CAST), hi, lo);
76 break;
77 case PCI_IDE_ETC_REG:
78 _wrmsr(IDE_MSR_REG(IDE_ETC), hi, lo);
79 break;
80 case PCI_IDE_PM_REG:
81 _wrmsr(IDE_MSR_REG(IDE_INTERNAL_PM), hi, lo);
82 break;
83 default:
84 break;
85 }
86}
87
88u32 pci_ide_read_reg(int reg)
89{
90 u32 conf_data = 0;
91 u32 hi, lo;
92
93 switch (reg) {
94 case PCI_VENDOR_ID:
95 conf_data =
96 CFG_PCI_VENDOR_ID(CS5536_IDE_DEVICE_ID, CS5536_VENDOR_ID);
97 break;
98 case PCI_COMMAND:
99 _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
100 if (lo & 0xfffffff0)
101 conf_data |= PCI_COMMAND_IO;
102 _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
103 if ((lo & 0x30) == 0x30)
104 conf_data |= PCI_COMMAND_MASTER;
105 break;
106 case PCI_STATUS:
107 conf_data |= PCI_STATUS_66MHZ;
108 conf_data |= PCI_STATUS_FAST_BACK;
109 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
110 if (lo & SB_PARE_ERR_FLAG)
111 conf_data |= PCI_STATUS_PARITY;
112 conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
113 break;
114 case PCI_CLASS_REVISION:
115 _rdmsr(IDE_MSR_REG(IDE_CAP), &hi, &lo);
116 conf_data = lo & 0x000000ff;
117 conf_data |= (CS5536_IDE_CLASS_CODE << 8);
118 break;
119 case PCI_CACHE_LINE_SIZE:
120 _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
121 hi &= 0x000000f8;
122 conf_data = CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE, hi);
123 break;
124 case PCI_BAR4_REG:
125 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
126 if (lo & SOFT_BAR_IDE_FLAG) {
127 conf_data = CS5536_IDE_RANGE |
128 PCI_BASE_ADDRESS_SPACE_IO;
129 lo &= ~SOFT_BAR_IDE_FLAG;
130 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
131 } else {
132 _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
133 conf_data = lo & 0xfffffff0;
134 conf_data |= 0x01;
135 conf_data &= ~0x02;
136 }
137 break;
138 case PCI_CARDBUS_CIS:
139 conf_data = PCI_CARDBUS_CIS_POINTER;
140 break;
141 case PCI_SUBSYSTEM_VENDOR_ID:
142 conf_data =
143 CFG_PCI_VENDOR_ID(CS5536_IDE_SUB_ID, CS5536_SUB_VENDOR_ID);
144 break;
145 case PCI_ROM_ADDRESS:
146 conf_data = PCI_EXPANSION_ROM_BAR;
147 break;
148 case PCI_CAPABILITY_LIST:
149 conf_data = PCI_CAPLIST_POINTER;
150 break;
151 case PCI_INTERRUPT_LINE:
152 conf_data =
153 CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_IDE_INTR);
154 break;
155 case PCI_IDE_CFG_REG:
156 _rdmsr(IDE_MSR_REG(IDE_CFG), &hi, &lo);
157 conf_data = lo;
158 break;
159 case PCI_IDE_DTC_REG:
160 _rdmsr(IDE_MSR_REG(IDE_DTC), &hi, &lo);
161 conf_data = lo;
162 break;
163 case PCI_IDE_CAST_REG:
164 _rdmsr(IDE_MSR_REG(IDE_CAST), &hi, &lo);
165 conf_data = lo;
166 break;
167 case PCI_IDE_ETC_REG:
168 _rdmsr(IDE_MSR_REG(IDE_ETC), &hi, &lo);
169 conf_data = lo;
170 case PCI_IDE_PM_REG:
171 _rdmsr(IDE_MSR_REG(IDE_INTERNAL_PM), &hi, &lo);
172 conf_data = lo;
173 break;
174 default:
175 break;
176 }
177
178 return conf_data;
179}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_isa.c b/arch/mips/loongson/common/cs5536/cs5536_isa.c
new file mode 100644
index 000000000000..b6f17f538e48
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_isa.c
@@ -0,0 +1,316 @@
1/*
2 * the ISA Virtual Support Module of AMD CS5536
3 *
4 * Copyright (C) 2007 Lemote, Inc.
5 * Author : jlliu, liujl@lemote.com
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15
16#include <cs5536/cs5536.h>
17#include <cs5536/cs5536_pci.h>
18
19/* common variables for PCI_ISA_READ/WRITE_BAR */
20static const u32 divil_msr_reg[6] = {
21 DIVIL_MSR_REG(DIVIL_LBAR_SMB), DIVIL_MSR_REG(DIVIL_LBAR_GPIO),
22 DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), DIVIL_MSR_REG(DIVIL_LBAR_IRQ),
23 DIVIL_MSR_REG(DIVIL_LBAR_PMS), DIVIL_MSR_REG(DIVIL_LBAR_ACPI),
24};
25
26static const u32 soft_bar_flag[6] = {
27 SOFT_BAR_SMB_FLAG, SOFT_BAR_GPIO_FLAG, SOFT_BAR_MFGPT_FLAG,
28 SOFT_BAR_IRQ_FLAG, SOFT_BAR_PMS_FLAG, SOFT_BAR_ACPI_FLAG,
29};
30
31static const u32 sb_msr_reg[6] = {
32 SB_MSR_REG(SB_R0), SB_MSR_REG(SB_R1), SB_MSR_REG(SB_R2),
33 SB_MSR_REG(SB_R3), SB_MSR_REG(SB_R4), SB_MSR_REG(SB_R5),
34};
35
36static const u32 bar_space_range[6] = {
37 CS5536_SMB_RANGE, CS5536_GPIO_RANGE, CS5536_MFGPT_RANGE,
38 CS5536_IRQ_RANGE, CS5536_PMS_RANGE, CS5536_ACPI_RANGE,
39};
40
41static const int bar_space_len[6] = {
42 CS5536_SMB_LENGTH, CS5536_GPIO_LENGTH, CS5536_MFGPT_LENGTH,
43 CS5536_IRQ_LENGTH, CS5536_PMS_LENGTH, CS5536_ACPI_LENGTH,
44};
45
46/*
47 * enable the divil module bar space.
48 *
49 * For all the DIVIL module LBAR, you should control the DIVIL LBAR reg
50 * and the RCONFx(0~5) reg to use the modules.
51 */
52static void divil_lbar_enable(void)
53{
54 u32 hi, lo;
55 int offset;
56
57 /*
58 * The DIVIL IRQ is not used yet. and make the RCONF0 reserved.
59 */
60
61 for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) {
62 _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
63 hi |= 0x01;
64 _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo);
65 }
66}
67
68/*
69 * disable the divil module bar space.
70 */
71static void divil_lbar_disable(void)
72{
73 u32 hi, lo;
74 int offset;
75
76 for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) {
77 _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
78 hi &= ~0x01;
79 _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo);
80 }
81}
82
83/*
84 * BAR write: write value to the n BAR
85 */
86
87void pci_isa_write_bar(int n, u32 value)
88{
89 u32 hi = 0, lo = value;
90
91 if (value == PCI_BAR_RANGE_MASK) {
92 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
93 lo |= soft_bar_flag[n];
94 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
95 } else if (value & 0x01) {
96 /* NATIVE reg */
97 hi = 0x0000f001;
98 lo &= bar_space_range[n];
99 _wrmsr(divil_msr_reg[n], hi, lo);
100
101 /* RCONFx is 4bytes in units for I/O space */
102 hi = ((value & 0x000ffffc) << 12) |
103 ((bar_space_len[n] - 4) << 12) | 0x01;
104 lo = ((value & 0x000ffffc) << 12) | 0x01;
105 _wrmsr(sb_msr_reg[n], hi, lo);
106 }
107}
108
109/*
110 * BAR read: read the n BAR
111 */
112
113u32 pci_isa_read_bar(int n)
114{
115 u32 conf_data = 0;
116 u32 hi, lo;
117
118 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
119 if (lo & soft_bar_flag[n]) {
120 conf_data = bar_space_range[n] | PCI_BASE_ADDRESS_SPACE_IO;
121 lo &= ~soft_bar_flag[n];
122 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
123 } else {
124 _rdmsr(divil_msr_reg[n], &hi, &lo);
125 conf_data = lo & bar_space_range[n];
126 conf_data |= 0x01;
127 conf_data &= ~0x02;
128 }
129 return conf_data;
130}
131
132/*
133 * isa_write: ISA write transfer
134 *
135 * We assume that this is not a bus master transfer.
136 */
137void pci_isa_write_reg(int reg, u32 value)
138{
139 u32 hi = 0, lo = value;
140 u32 temp;
141
142 switch (reg) {
143 case PCI_COMMAND:
144 if (value & PCI_COMMAND_IO)
145 divil_lbar_enable();
146 else
147 divil_lbar_disable();
148 break;
149 case PCI_STATUS:
150 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
151 temp = lo & 0x0000ffff;
152 if ((value & PCI_STATUS_SIG_TARGET_ABORT) &&
153 (lo & SB_TAS_ERR_EN))
154 temp |= SB_TAS_ERR_FLAG;
155
156 if ((value & PCI_STATUS_REC_TARGET_ABORT) &&
157 (lo & SB_TAR_ERR_EN))
158 temp |= SB_TAR_ERR_FLAG;
159
160 if ((value & PCI_STATUS_REC_MASTER_ABORT)
161 && (lo & SB_MAR_ERR_EN))
162 temp |= SB_MAR_ERR_FLAG;
163
164 if ((value & PCI_STATUS_DETECTED_PARITY)
165 && (lo & SB_PARE_ERR_EN))
166 temp |= SB_PARE_ERR_FLAG;
167
168 lo = temp;
169 _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
170 break;
171 case PCI_CACHE_LINE_SIZE:
172 value &= 0x0000ff00;
173 _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
174 hi &= 0xffffff00;
175 hi |= (value >> 8);
176 _wrmsr(SB_MSR_REG(SB_CTRL), hi, lo);
177 break;
178 case PCI_BAR0_REG:
179 pci_isa_write_bar(0, value);
180 break;
181 case PCI_BAR1_REG:
182 pci_isa_write_bar(1, value);
183 break;
184 case PCI_BAR2_REG:
185 pci_isa_write_bar(2, value);
186 break;
187 case PCI_BAR3_REG:
188 pci_isa_write_bar(3, value);
189 break;
190 case PCI_BAR4_REG:
191 pci_isa_write_bar(4, value);
192 break;
193 case PCI_BAR5_REG:
194 pci_isa_write_bar(5, value);
195 break;
196 case PCI_UART1_INT_REG:
197 _rdmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), &hi, &lo);
198 /* disable uart1 interrupt in PIC */
199 lo &= ~(0xf << 24);
200 if (value) /* enable uart1 interrupt in PIC */
201 lo |= (CS5536_UART1_INTR << 24);
202 _wrmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), hi, lo);
203 break;
204 case PCI_UART2_INT_REG:
205 _rdmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), &hi, &lo);
206 /* disable uart2 interrupt in PIC */
207 lo &= ~(0xf << 28);
208 if (value) /* enable uart2 interrupt in PIC */
209 lo |= (CS5536_UART2_INTR << 28);
210 _wrmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), hi, lo);
211 break;
212 case PCI_ISA_FIXUP_REG:
213 if (value) {
214 /* enable the TARGET ABORT/MASTER ABORT etc. */
215 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
216 lo |= 0x00000063;
217 _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
218 }
219
220 default:
221 /* ALL OTHER PCI CONFIG SPACE HEADER IS NOT IMPLEMENTED. */
222 break;
223 }
224}
225
226/*
227 * isa_read: ISA read transfers
228 *
229 * We assume that this is not a bus master transfer.
230 */
231u32 pci_isa_read_reg(int reg)
232{
233 u32 conf_data = 0;
234 u32 hi, lo;
235
236 switch (reg) {
237 case PCI_VENDOR_ID:
238 conf_data =
239 CFG_PCI_VENDOR_ID(CS5536_ISA_DEVICE_ID, CS5536_VENDOR_ID);
240 break;
241 case PCI_COMMAND:
242 /* we just check the first LBAR for the IO enable bit, */
243 /* maybe we should changed later. */
244 _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), &hi, &lo);
245 if (hi & 0x01)
246 conf_data |= PCI_COMMAND_IO;
247 break;
248 case PCI_STATUS:
249 conf_data |= PCI_STATUS_66MHZ;
250 conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
251 conf_data |= PCI_STATUS_FAST_BACK;
252
253 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
254 if (lo & SB_TAS_ERR_FLAG)
255 conf_data |= PCI_STATUS_SIG_TARGET_ABORT;
256 if (lo & SB_TAR_ERR_FLAG)
257 conf_data |= PCI_STATUS_REC_TARGET_ABORT;
258 if (lo & SB_MAR_ERR_FLAG)
259 conf_data |= PCI_STATUS_REC_MASTER_ABORT;
260 if (lo & SB_PARE_ERR_FLAG)
261 conf_data |= PCI_STATUS_DETECTED_PARITY;
262 break;
263 case PCI_CLASS_REVISION:
264 _rdmsr(GLCP_MSR_REG(GLCP_CHIP_REV_ID), &hi, &lo);
265 conf_data = lo & 0x000000ff;
266 conf_data |= (CS5536_ISA_CLASS_CODE << 8);
267 break;
268 case PCI_CACHE_LINE_SIZE:
269 _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
270 hi &= 0x000000f8;
271 conf_data = CFG_PCI_CACHE_LINE_SIZE(PCI_BRIDGE_HEADER_TYPE, hi);
272 break;
273 /*
274 * we only use the LBAR of DIVIL, no RCONF used.
275 * all of them are IO space.
276 */
277 case PCI_BAR0_REG:
278 return pci_isa_read_bar(0);
279 break;
280 case PCI_BAR1_REG:
281 return pci_isa_read_bar(1);
282 break;
283 case PCI_BAR2_REG:
284 return pci_isa_read_bar(2);
285 break;
286 case PCI_BAR3_REG:
287 break;
288 case PCI_BAR4_REG:
289 return pci_isa_read_bar(4);
290 break;
291 case PCI_BAR5_REG:
292 return pci_isa_read_bar(5);
293 break;
294 case PCI_CARDBUS_CIS:
295 conf_data = PCI_CARDBUS_CIS_POINTER;
296 break;
297 case PCI_SUBSYSTEM_VENDOR_ID:
298 conf_data =
299 CFG_PCI_VENDOR_ID(CS5536_ISA_SUB_ID, CS5536_SUB_VENDOR_ID);
300 break;
301 case PCI_ROM_ADDRESS:
302 conf_data = PCI_EXPANSION_ROM_BAR;
303 break;
304 case PCI_CAPABILITY_LIST:
305 conf_data = PCI_CAPLIST_POINTER;
306 break;
307 case PCI_INTERRUPT_LINE:
308 /* no interrupt used here */
309 conf_data = CFG_PCI_INTERRUPT_LINE(0x00, 0x00);
310 break;
311 default:
312 break;
313 }
314
315 return conf_data;
316}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c
new file mode 100644
index 000000000000..6cb44dbaeec2
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_mfgpt.c
@@ -0,0 +1,217 @@
1/*
2 * CS5536 General timer functions
3 *
4 * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
5 * Author: Yanhua, yanh@lemote.com
6 *
7 * Copyright (C) 2009 Lemote Inc.
8 * Author: Wu zhangjin, wuzj@lemote.com
9 *
10 * Reference: AMD Geode(TM) CS5536 Companion Device Data Book
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
16 */
17
18#include <linux/io.h>
19#include <linux/init.h>
20#include <linux/module.h>
21#include <linux/jiffies.h>
22#include <linux/spinlock.h>
23#include <linux/interrupt.h>
24#include <linux/clockchips.h>
25
26#include <asm/time.h>
27
28#include <cs5536/cs5536_mfgpt.h>
29
30DEFINE_SPINLOCK(mfgpt_lock);
31EXPORT_SYMBOL(mfgpt_lock);
32
33static u32 mfgpt_base;
34
35/*
36 * Initialize the MFGPT timer.
37 *
38 * This is also called after resume to bring the MFGPT into operation again.
39 */
40
41/* disable counter */
42void disable_mfgpt0_counter(void)
43{
44 outw(inw(MFGPT0_SETUP) & 0x7fff, MFGPT0_SETUP);
45}
46EXPORT_SYMBOL(disable_mfgpt0_counter);
47
48/* enable counter, comparator2 to event mode, 14.318MHz clock */
49void enable_mfgpt0_counter(void)
50{
51 outw(0xe310, MFGPT0_SETUP);
52}
53EXPORT_SYMBOL(enable_mfgpt0_counter);
54
55static void init_mfgpt_timer(enum clock_event_mode mode,
56 struct clock_event_device *evt)
57{
58 spin_lock(&mfgpt_lock);
59
60 switch (mode) {
61 case CLOCK_EVT_MODE_PERIODIC:
62 outw(COMPARE, MFGPT0_CMP2); /* set comparator2 */
63 outw(0, MFGPT0_CNT); /* set counter to 0 */
64 enable_mfgpt0_counter();
65 break;
66
67 case CLOCK_EVT_MODE_SHUTDOWN:
68 case CLOCK_EVT_MODE_UNUSED:
69 if (evt->mode == CLOCK_EVT_MODE_PERIODIC ||
70 evt->mode == CLOCK_EVT_MODE_ONESHOT)
71 disable_mfgpt0_counter();
72 break;
73
74 case CLOCK_EVT_MODE_ONESHOT:
75 /* The oneshot mode have very high deviation, Not use it! */
76 break;
77
78 case CLOCK_EVT_MODE_RESUME:
79 /* Nothing to do here */
80 break;
81 }
82 spin_unlock(&mfgpt_lock);
83}
84
85static struct clock_event_device mfgpt_clockevent = {
86 .name = "mfgpt",
87 .features = CLOCK_EVT_FEAT_PERIODIC,
88 .set_mode = init_mfgpt_timer,
89 .irq = CS5536_MFGPT_INTR,
90};
91
92static irqreturn_t timer_interrupt(int irq, void *dev_id)
93{
94 u32 basehi;
95
96 /*
97 * get MFGPT base address
98 *
99 * NOTE: do not remove me, it's need for the value of mfgpt_base is
100 * variable
101 */
102 _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), &basehi, &mfgpt_base);
103
104 /* ack */
105 outw(inw(MFGPT0_SETUP) | 0x4000, MFGPT0_SETUP);
106
107 mfgpt_clockevent.event_handler(&mfgpt_clockevent);
108
109 return IRQ_HANDLED;
110}
111
112static struct irqaction irq5 = {
113 .handler = timer_interrupt,
114 .flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
115 .name = "timer"
116};
117
118/*
119 * Initialize the conversion factor and the min/max deltas of the clock event
120 * structure and register the clock event source with the framework.
121 */
122void __init setup_mfgpt0_timer(void)
123{
124 u32 basehi;
125 struct clock_event_device *cd = &mfgpt_clockevent;
126 unsigned int cpu = smp_processor_id();
127
128 cd->cpumask = cpumask_of(cpu);
129 clockevent_set_clock(cd, MFGPT_TICK_RATE);
130 cd->max_delta_ns = clockevent_delta2ns(0xffff, cd);
131 cd->min_delta_ns = clockevent_delta2ns(0xf, cd);
132
133 /* Enable MFGPT0 Comparator 2 Output to the Interrupt Mapper */
134 _wrmsr(DIVIL_MSR_REG(MFGPT_IRQ), 0, 0x100);
135
136 /* Enable Interrupt Gate 5 */
137 _wrmsr(DIVIL_MSR_REG(PIC_ZSEL_LOW), 0, 0x50000);
138
139 /* get MFGPT base address */
140 _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), &basehi, &mfgpt_base);
141
142 clockevents_register_device(cd);
143
144 setup_irq(CS5536_MFGPT_INTR, &irq5);
145}
146
147/*
148 * Since the MFGPT overflows every tick, its not very useful
149 * to just read by itself. So use jiffies to emulate a free
150 * running counter:
151 */
152static cycle_t mfgpt_read(struct clocksource *cs)
153{
154 unsigned long flags;
155 int count;
156 u32 jifs;
157 static int old_count;
158 static u32 old_jifs;
159
160 spin_lock_irqsave(&mfgpt_lock, flags);
161 /*
162 * Although our caller may have the read side of xtime_lock,
163 * this is now a seqlock, and we are cheating in this routine
164 * by having side effects on state that we cannot undo if
165 * there is a collision on the seqlock and our caller has to
166 * retry. (Namely, old_jifs and old_count.) So we must treat
167 * jiffies as volatile despite the lock. We read jiffies
168 * before latching the timer count to guarantee that although
169 * the jiffies value might be older than the count (that is,
170 * the counter may underflow between the last point where
171 * jiffies was incremented and the point where we latch the
172 * count), it cannot be newer.
173 */
174 jifs = jiffies;
175 /* read the count */
176 count = inw(MFGPT0_CNT);
177
178 /*
179 * It's possible for count to appear to go the wrong way for this
180 * reason:
181 *
182 * The timer counter underflows, but we haven't handled the resulting
183 * interrupt and incremented jiffies yet.
184 *
185 * Previous attempts to handle these cases intelligently were buggy, so
186 * we just do the simple thing now.
187 */
188 if (count < old_count && jifs == old_jifs)
189 count = old_count;
190
191 old_count = count;
192 old_jifs = jifs;
193
194 spin_unlock_irqrestore(&mfgpt_lock, flags);
195
196 return (cycle_t) (jifs * COMPARE) + count;
197}
198
199static struct clocksource clocksource_mfgpt = {
200 .name = "mfgpt",
201 .rating = 120, /* Functional for real use, but not desired */
202 .read = mfgpt_read,
203 .mask = CLOCKSOURCE_MASK(32),
204 .mult = 0,
205 .shift = 22,
206};
207
208int __init init_mfgpt_clocksource(void)
209{
210 if (num_possible_cpus() > 1) /* MFGPT does not scale! */
211 return 0;
212
213 clocksource_mfgpt.mult = clocksource_hz2mult(MFGPT_TICK_RATE, 22);
214 return clocksource_register(&clocksource_mfgpt);
215}
216
217arch_initcall(init_mfgpt_clocksource);
diff --git a/arch/mips/loongson/common/cs5536/cs5536_ohci.c b/arch/mips/loongson/common/cs5536/cs5536_ohci.c
new file mode 100644
index 000000000000..8fdb02b6e90f
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_ohci.c
@@ -0,0 +1,147 @@
1/*
2 * the OHCI Virtual Support Module of AMD CS5536
3 *
4 * Copyright (C) 2007 Lemote, Inc.
5 * Author : jlliu, liujl@lemote.com
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 */
15
16#include <cs5536/cs5536.h>
17#include <cs5536/cs5536_pci.h>
18
19void pci_ohci_write_reg(int reg, u32 value)
20{
21 u32 hi = 0, lo = value;
22
23 switch (reg) {
24 case PCI_COMMAND:
25 _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
26 if (value & PCI_COMMAND_MASTER)
27 hi |= PCI_COMMAND_MASTER;
28 else
29 hi &= ~PCI_COMMAND_MASTER;
30
31 if (value & PCI_COMMAND_MEMORY)
32 hi |= PCI_COMMAND_MEMORY;
33 else
34 hi &= ~PCI_COMMAND_MEMORY;
35 _wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
36 break;
37 case PCI_STATUS:
38 if (value & PCI_STATUS_PARITY) {
39 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
40 if (lo & SB_PARE_ERR_FLAG) {
41 lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
42 _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
43 }
44 }
45 break;
46 case PCI_BAR0_REG:
47 if (value == PCI_BAR_RANGE_MASK) {
48 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
49 lo |= SOFT_BAR_OHCI_FLAG;
50 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
51 } else if ((value & 0x01) == 0x00) {
52 _wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
53
54 value &= 0xfffffff0;
55 hi = 0x40000000 | ((value & 0xff000000) >> 24);
56 lo = 0x000fffff | ((value & 0x00fff000) << 8);
57 _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM3), hi, lo);
58 }
59 break;
60 case PCI_OHCI_INT_REG:
61 _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
62 lo &= ~(0xf << PIC_YSEL_LOW_USB_SHIFT);
63 if (value) /* enable all the usb interrupt in PIC */
64 lo |= (CS5536_USB_INTR << PIC_YSEL_LOW_USB_SHIFT);
65 _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
66 break;
67 default:
68 break;
69 }
70}
71
72u32 pci_ohci_read_reg(int reg)
73{
74 u32 conf_data = 0;
75 u32 hi, lo;
76
77 switch (reg) {
78 case PCI_VENDOR_ID:
79 conf_data =
80 CFG_PCI_VENDOR_ID(CS5536_OHCI_DEVICE_ID, CS5536_VENDOR_ID);
81 break;
82 case PCI_COMMAND:
83 _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
84 if (hi & PCI_COMMAND_MASTER)
85 conf_data |= PCI_COMMAND_MASTER;
86 if (hi & PCI_COMMAND_MEMORY)
87 conf_data |= PCI_COMMAND_MEMORY;
88 break;
89 case PCI_STATUS:
90 conf_data |= PCI_STATUS_66MHZ;
91 conf_data |= PCI_STATUS_FAST_BACK;
92 _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
93 if (lo & SB_PARE_ERR_FLAG)
94 conf_data |= PCI_STATUS_PARITY;
95 conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
96 break;
97 case PCI_CLASS_REVISION:
98 _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
99 conf_data = lo & 0x000000ff;
100 conf_data |= (CS5536_OHCI_CLASS_CODE << 8);
101 break;
102 case PCI_CACHE_LINE_SIZE:
103 conf_data =
104 CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
105 PCI_NORMAL_LATENCY_TIMER);
106 break;
107 case PCI_BAR0_REG:
108 _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
109 if (lo & SOFT_BAR_OHCI_FLAG) {
110 conf_data = CS5536_OHCI_RANGE |
111 PCI_BASE_ADDRESS_SPACE_MEMORY;
112 lo &= ~SOFT_BAR_OHCI_FLAG;
113 _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
114 } else {
115 _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
116 conf_data = lo & 0xffffff00;
117 conf_data &= ~0x0000000f; /* 32bit mem */
118 }
119 break;
120 case PCI_CARDBUS_CIS:
121 conf_data = PCI_CARDBUS_CIS_POINTER;
122 break;
123 case PCI_SUBSYSTEM_VENDOR_ID:
124 conf_data =
125 CFG_PCI_VENDOR_ID(CS5536_OHCI_SUB_ID, CS5536_SUB_VENDOR_ID);
126 break;
127 case PCI_ROM_ADDRESS:
128 conf_data = PCI_EXPANSION_ROM_BAR;
129 break;
130 case PCI_CAPABILITY_LIST:
131 conf_data = PCI_CAPLIST_USB_POINTER;
132 break;
133 case PCI_INTERRUPT_LINE:
134 conf_data =
135 CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
136 break;
137 case PCI_OHCI_INT_REG:
138 _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
139 if ((lo & 0x00000f00) == CS5536_USB_INTR)
140 conf_data = 1;
141 break;
142 default:
143 break;
144 }
145
146 return conf_data;
147}
diff --git a/arch/mips/loongson/common/cs5536/cs5536_pci.c b/arch/mips/loongson/common/cs5536/cs5536_pci.c
new file mode 100644
index 000000000000..e23f3d7d2c1d
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/cs5536_pci.c
@@ -0,0 +1,87 @@
1/*
2 * read/write operation to the PCI config space of CS5536
3 *
4 * Copyright (C) 2007 Lemote, Inc.
5 * Author : jlliu, liujl@lemote.com
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * the Virtual Support Module(VSM) for virtulizing the PCI
16 * configure space are defined in cs5536_modulename.c respectively,
17 *
18 * after this virtulizing, user can access the PCI configure space
19 * directly as a normal multi-function PCI device which follows
20 * the PCI-2.2 spec.
21 */
22
23#include <linux/types.h>
24#include <cs5536/cs5536_vsm.h>
25
26enum {
27 CS5536_FUNC_START = -1,
28 CS5536_ISA_FUNC,
29 reserved_func,
30 CS5536_IDE_FUNC,
31 CS5536_ACC_FUNC,
32 CS5536_OHCI_FUNC,
33 CS5536_EHCI_FUNC,
34 CS5536_FUNC_END,
35};
36
37static const cs5536_pci_vsm_write vsm_conf_write[] = {
38 [CS5536_ISA_FUNC] pci_isa_write_reg,
39 [reserved_func] NULL,
40 [CS5536_IDE_FUNC] pci_ide_write_reg,
41 [CS5536_ACC_FUNC] pci_acc_write_reg,
42 [CS5536_OHCI_FUNC] pci_ohci_write_reg,
43 [CS5536_EHCI_FUNC] pci_ehci_write_reg,
44};
45
46static const cs5536_pci_vsm_read vsm_conf_read[] = {
47 [CS5536_ISA_FUNC] pci_isa_read_reg,
48 [reserved_func] NULL,
49 [CS5536_IDE_FUNC] pci_ide_read_reg,
50 [CS5536_ACC_FUNC] pci_acc_read_reg,
51 [CS5536_OHCI_FUNC] pci_ohci_read_reg,
52 [CS5536_EHCI_FUNC] pci_ehci_read_reg,
53};
54
55/*
56 * write to PCI config space and transfer it to MSR write.
57 */
58void cs5536_pci_conf_write4(int function, int reg, u32 value)
59{
60 if ((function <= CS5536_FUNC_START) || (function >= CS5536_FUNC_END))
61 return;
62 if ((reg < 0) || (reg > 0x100) || ((reg & 0x03) != 0))
63 return;
64
65 if (vsm_conf_write[function] != NULL)
66 vsm_conf_write[function](reg, value);
67}
68
69/*
70 * read PCI config space and transfer it to MSR access.
71 */
72u32 cs5536_pci_conf_read4(int function, int reg)
73{
74 u32 data = 0;
75
76 if ((function <= CS5536_FUNC_START) || (function >= CS5536_FUNC_END))
77 return 0;
78 if ((reg < 0) || ((reg & 0x03) != 0))
79 return 0;
80 if (reg > 0x100)
81 return 0xffffffff;
82
83 if (vsm_conf_read[function] != NULL)
84 data = vsm_conf_read[function](reg);
85
86 return data;
87}
diff --git a/arch/mips/loongson/common/early_printk.c b/arch/mips/loongson/common/early_printk.c
index bc73edc0cfd8..23e7a8f8897f 100644
--- a/arch/mips/loongson/common/early_printk.c
+++ b/arch/mips/loongson/common/early_printk.c
@@ -1,7 +1,7 @@
1/* early printk support 1/* early printk support
2 * 2 *
3 * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca> 3 * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca>
4 * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology 4 * Copyright (c) 2009 Lemote Inc.
5 * Author: Wu Zhangjin, wuzj@lemote.com 5 * Author: Wu Zhangjin, wuzj@lemote.com
6 * 6 *
7 * This program is free software; you can redistribute it and/or modify it 7 * This program is free software; you can redistribute it and/or modify it
@@ -12,26 +12,29 @@
12#include <linux/serial_reg.h> 12#include <linux/serial_reg.h>
13 13
14#include <loongson.h> 14#include <loongson.h>
15#include <machine.h>
16 15
17#define PORT(base, offset) (u8 *)(base + offset) 16#define PORT(base, offset) (u8 *)(base + offset)
18 17
19static inline unsigned int serial_in(phys_addr_t base, int offset) 18static inline unsigned int serial_in(unsigned char *base, int offset)
20{ 19{
21 return readb(PORT(base, offset)); 20 return readb(PORT(base, offset));
22} 21}
23 22
24static inline void serial_out(phys_addr_t base, int offset, int value) 23static inline void serial_out(unsigned char *base, int offset, int value)
25{ 24{
26 writeb(value, PORT(base, offset)); 25 writeb(value, PORT(base, offset));
27} 26}
28 27
29void prom_putchar(char c) 28void prom_putchar(char c)
30{ 29{
31 phys_addr_t uart_base = 30 int timeout;
32 (phys_addr_t) ioremap_nocache(LOONGSON_UART_BASE, 8); 31 unsigned char *uart_base;
33 32
34 while ((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) 33 uart_base = (unsigned char *)_loongson_uart_base;
34 timeout = 1024;
35
36 while (((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) &&
37 (timeout-- > 0))
35 ; 38 ;
36 39
37 serial_out(uart_base, UART_TX, c); 40 serial_out(uart_base, UART_TX, c);
diff --git a/arch/mips/loongson/common/env.c b/arch/mips/loongson/common/env.c
index b9ef50385541..196d947d929a 100644
--- a/arch/mips/loongson/common/env.c
+++ b/arch/mips/loongson/common/env.c
@@ -17,11 +17,14 @@
17 * Free Software Foundation; either version 2 of the License, or (at your 17 * Free Software Foundation; either version 2 of the License, or (at your
18 * option) any later version. 18 * option) any later version.
19 */ 19 */
20#include <linux/module.h>
21
20#include <asm/bootinfo.h> 22#include <asm/bootinfo.h>
21 23
22#include <loongson.h> 24#include <loongson.h>
23 25
24unsigned long bus_clock, cpu_clock_freq; 26unsigned long bus_clock, cpu_clock_freq;
27EXPORT_SYMBOL(cpu_clock_freq);
25unsigned long memsize, highmemsize; 28unsigned long memsize, highmemsize;
26 29
27/* pmon passes arguments in 32bit pointers */ 30/* pmon passes arguments in 32bit pointers */
diff --git a/arch/mips/loongson/common/init.c b/arch/mips/loongson/common/init.c
index 3abe927422a3..a2abd9355737 100644
--- a/arch/mips/loongson/common/init.c
+++ b/arch/mips/loongson/common/init.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * Copyright (C) 2009 Lemote Inc. & Insititute of Computing Technology 2 * Copyright (C) 2009 Lemote Inc.
3 * Author: Wu Zhangjin, wuzj@lemote.com 3 * Author: Wu Zhangjin, wuzj@lemote.com
4 * 4 *
5 * This program is free software; you can redistribute it and/or modify it 5 * This program is free software; you can redistribute it and/or modify it
@@ -10,19 +10,28 @@
10 10
11#include <linux/bootmem.h> 11#include <linux/bootmem.h>
12 12
13#include <asm/bootinfo.h>
14
15#include <loongson.h> 13#include <loongson.h>
16 14
15/* Loongson CPU address windows config space base address */
16unsigned long __maybe_unused _loongson_addrwincfg_base;
17
17void __init prom_init(void) 18void __init prom_init(void)
18{ 19{
19 /* init base address of io space */ 20 /* init base address of io space */
20 set_io_port_base((unsigned long) 21 set_io_port_base((unsigned long)
21 ioremap(BONITO_PCIIO_BASE, BONITO_PCIIO_SIZE)); 22 ioremap(LOONGSON_PCIIO_BASE, LOONGSON_PCIIO_SIZE));
23
24#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
25 _loongson_addrwincfg_base = (unsigned long)
26 ioremap(LOONGSON_ADDRWINCFG_BASE, LOONGSON_ADDRWINCFG_SIZE);
27#endif
22 28
23 prom_init_cmdline(); 29 prom_init_cmdline();
24 prom_init_env(); 30 prom_init_env();
25 prom_init_memory(); 31 prom_init_memory();
32
33 /*init the uart base address */
34 prom_init_uart_base();
26} 35}
27 36
28void __init prom_free_prom_memory(void) 37void __init prom_free_prom_memory(void)
diff --git a/arch/mips/loongson/common/irq.c b/arch/mips/loongson/common/irq.c
index b32b4a3e5137..20e732831978 100644
--- a/arch/mips/loongson/common/irq.c
+++ b/arch/mips/loongson/common/irq.c
@@ -20,21 +20,21 @@ void bonito_irqdispatch(void)
20 int i; 20 int i;
21 21
22 /* workaround the IO dma problem: let cpu looping to allow DMA finish */ 22 /* workaround the IO dma problem: let cpu looping to allow DMA finish */
23 int_status = BONITO_INTISR; 23 int_status = LOONGSON_INTISR;
24 if (int_status & (1 << 10)) { 24 if (int_status & (1 << 10)) {
25 while (int_status & (1 << 10)) { 25 while (int_status & (1 << 10)) {
26 udelay(1); 26 udelay(1);
27 int_status = BONITO_INTISR; 27 int_status = LOONGSON_INTISR;
28 } 28 }
29 } 29 }
30 30
31 /* Get pending sources, masked by current enables */ 31 /* Get pending sources, masked by current enables */
32 int_status = BONITO_INTISR & BONITO_INTEN; 32 int_status = LOONGSON_INTISR & LOONGSON_INTEN;
33 33
34 if (int_status != 0) { 34 if (int_status != 0) {
35 i = __ffs(int_status); 35 i = __ffs(int_status);
36 int_status &= ~(1 << i); 36 int_status &= ~(1 << i);
37 do_IRQ(BONITO_IRQ_BASE + i); 37 do_IRQ(LOONGSON_IRQ_BASE + i);
38 } 38 }
39} 39}
40 40
@@ -60,13 +60,13 @@ void __init arch_init_irq(void)
60 set_irq_trigger_mode(); 60 set_irq_trigger_mode();
61 61
62 /* no steer */ 62 /* no steer */
63 BONITO_INTSTEER = 0; 63 LOONGSON_INTSTEER = 0;
64 64
65 /* 65 /*
66 * Mask out all interrupt by writing "1" to all bit position in 66 * Mask out all interrupt by writing "1" to all bit position in
67 * the interrupt reset reg. 67 * the interrupt reset reg.
68 */ 68 */
69 BONITO_INTENCLR = ~0; 69 LOONGSON_INTENCLR = ~0;
70 70
71 /* machine specific irq init */ 71 /* machine specific irq init */
72 mach_init_irq(); 72 mach_init_irq();
diff --git a/arch/mips/loongson/common/machtype.c b/arch/mips/loongson/common/machtype.c
index 7b348248de7d..0ed52b3f5314 100644
--- a/arch/mips/loongson/common/machtype.c
+++ b/arch/mips/loongson/common/machtype.c
@@ -15,6 +15,9 @@
15#include <loongson.h> 15#include <loongson.h>
16#include <machine.h> 16#include <machine.h>
17 17
18/* please ensure the length of the machtype string is less than 50 */
19#define MACHTYPE_LEN 50
20
18static const char *system_types[] = { 21static const char *system_types[] = {
19 [MACH_LOONGSON_UNKNOWN] "unknown loongson machine", 22 [MACH_LOONGSON_UNKNOWN] "unknown loongson machine",
20 [MACH_LEMOTE_FL2E] "lemote-fuloong-2e-box", 23 [MACH_LEMOTE_FL2E] "lemote-fuloong-2e-box",
@@ -22,29 +25,35 @@ static const char *system_types[] = {
22 [MACH_LEMOTE_ML2F7] "lemote-mengloong-2f-7inches", 25 [MACH_LEMOTE_ML2F7] "lemote-mengloong-2f-7inches",
23 [MACH_LEMOTE_YL2F89] "lemote-yeeloong-2f-8.9inches", 26 [MACH_LEMOTE_YL2F89] "lemote-yeeloong-2f-8.9inches",
24 [MACH_DEXXON_GDIUM2F10] "dexxon-gidum-2f-10inches", 27 [MACH_DEXXON_GDIUM2F10] "dexxon-gidum-2f-10inches",
28 [MACH_LEMOTE_NAS] "lemote-nas-2f",
29 [MACH_LEMOTE_LL2F] "lemote-lynloong-2f",
25 [MACH_LOONGSON_END] NULL, 30 [MACH_LOONGSON_END] NULL,
26}; 31};
27 32
28const char *get_system_type(void) 33const char *get_system_type(void)
29{ 34{
30 if (mips_machtype == MACH_UNKNOWN)
31 mips_machtype = LOONGSON_MACHTYPE;
32
33 return system_types[mips_machtype]; 35 return system_types[mips_machtype];
34} 36}
35 37
36static __init int machtype_setup(char *str) 38void __init prom_init_machtype(void)
37{ 39{
40 char *p, str[MACHTYPE_LEN];
38 int machtype = MACH_LEMOTE_FL2E; 41 int machtype = MACH_LEMOTE_FL2E;
39 42
40 if (!str) 43 mips_machtype = LOONGSON_MACHTYPE;
41 return -EINVAL; 44
45 p = strstr(arcs_cmdline, "machtype=");
46 if (!p)
47 return;
48 p += strlen("machtype=");
49 strncpy(str, p, MACHTYPE_LEN);
50 p = strstr(str, " ");
51 if (p)
52 *p = '\0';
42 53
43 for (; system_types[machtype]; machtype++) 54 for (; system_types[machtype]; machtype++)
44 if (strstr(system_types[machtype], str)) { 55 if (strstr(system_types[machtype], str)) {
45 mips_machtype = machtype; 56 mips_machtype = machtype;
46 break; 57 break;
47 } 58 }
48 return 0;
49} 59}
50__setup("machtype=", machtype_setup);
diff --git a/arch/mips/loongson/common/mem.c b/arch/mips/loongson/common/mem.c
index e94ef158f980..ceacd092b446 100644
--- a/arch/mips/loongson/common/mem.c
+++ b/arch/mips/loongson/common/mem.c
@@ -12,15 +12,40 @@
12 12
13#include <loongson.h> 13#include <loongson.h>
14#include <mem.h> 14#include <mem.h>
15#include <pci.h>
15 16
16void __init prom_init_memory(void) 17void __init prom_init_memory(void)
17{ 18{
18 add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM); 19 add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
20
21 add_memory_region(memsize << 20, LOONGSON_PCI_MEM_START - (memsize <<
22 20), BOOT_MEM_RESERVED);
23#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
24 {
25 int bit;
26
27 bit = fls(memsize + highmemsize);
28 if (bit != ffs(memsize + highmemsize))
29 bit += 20;
30 else
31 bit = bit + 20 - 1;
32
33 /* set cpu window3 to map CPU to DDR: 2G -> 2G */
34 LOONGSON_ADDRWIN_CPUTODDR(ADDRWIN_WIN3, 0x80000000ul,
35 0x80000000ul, (1 << bit));
36 mmiowb();
37 }
38#endif /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */
39
19#ifdef CONFIG_64BIT 40#ifdef CONFIG_64BIT
20 if (highmemsize > 0) 41 if (highmemsize > 0)
21 add_memory_region(LOONGSON_HIGHMEM_START, 42 add_memory_region(LOONGSON_HIGHMEM_START,
22 highmemsize << 20, BOOT_MEM_RAM); 43 highmemsize << 20, BOOT_MEM_RAM);
23#endif /* CONFIG_64BIT */ 44
45 add_memory_region(LOONGSON_PCI_MEM_END + 1, LOONGSON_HIGHMEM_START -
46 LOONGSON_PCI_MEM_END - 1, BOOT_MEM_RESERVED);
47
48#endif /* !CONFIG_64BIT */
24} 49}
25 50
26/* override of arch/mips/mm/cache.c: __uncached_access */ 51/* override of arch/mips/mm/cache.c: __uncached_access */
@@ -33,3 +58,61 @@ int __uncached_access(struct file *file, unsigned long addr)
33 ((addr >= LOONGSON_MMIO_MEM_START) && 58 ((addr >= LOONGSON_MMIO_MEM_START) &&
34 (addr < LOONGSON_MMIO_MEM_END)); 59 (addr < LOONGSON_MMIO_MEM_END));
35} 60}
61
62#ifdef CONFIG_CPU_SUPPORTS_UNCACHED_ACCELERATED
63
64#include <linux/pci.h>
65#include <linux/sched.h>
66#include <asm/current.h>
67
68static unsigned long uca_start, uca_end;
69
70pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
71 unsigned long size, pgprot_t vma_prot)
72{
73 unsigned long offset = pfn << PAGE_SHIFT;
74 unsigned long end = offset + size;
75
76 if (__uncached_access(file, offset)) {
77 if (((uca_start && offset) >= uca_start) &&
78 (end <= uca_end))
79 return __pgprot((pgprot_val(vma_prot) &
80 ~_CACHE_MASK) |
81 _CACHE_UNCACHED_ACCELERATED);
82 else
83 return pgprot_noncached(vma_prot);
84 }
85 return vma_prot;
86}
87
88static int __init find_vga_mem_init(void)
89{
90 struct pci_dev *dev = 0;
91 struct resource *r;
92 int idx;
93
94 if (uca_start)
95 return 0;
96
97 for_each_pci_dev(dev) {
98 if ((dev->class >> 8) == PCI_CLASS_DISPLAY_VGA) {
99 for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) {
100 r = &dev->resource[idx];
101 if (!r->start && r->end)
102 continue;
103 if (r->flags & IORESOURCE_IO)
104 continue;
105 if (r->flags & IORESOURCE_MEM) {
106 uca_start = r->start;
107 uca_end = r->end;
108 return 0;
109 }
110 }
111 }
112 }
113
114 return 0;
115}
116
117late_initcall(find_vga_mem_init);
118#endif /* !CONFIG_CPU_SUPPORTS_UNCACHED_ACCELERATED */
diff --git a/arch/mips/loongson/common/pci.c b/arch/mips/loongson/common/pci.c
index a3a4abfb6c9a..31d8c5ecd16c 100644
--- a/arch/mips/loongson/common/pci.c
+++ b/arch/mips/loongson/common/pci.c
@@ -27,7 +27,7 @@ static struct resource loongson_pci_io_resource = {
27}; 27};
28 28
29static struct pci_controller loongson_pci_controller = { 29static struct pci_controller loongson_pci_controller = {
30 .pci_ops = &bonito64_pci_ops, 30 .pci_ops = &loongson_pci_ops,
31 .io_resource = &loongson_pci_io_resource, 31 .io_resource = &loongson_pci_io_resource,
32 .mem_resource = &loongson_pci_mem_resource, 32 .mem_resource = &loongson_pci_mem_resource,
33 .mem_offset = 0x00000000UL, 33 .mem_offset = 0x00000000UL,
@@ -44,15 +44,15 @@ static void __init setup_pcimap(void)
44 * pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0 44 * pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0
45 * [<2G] [384M,448M] [320M,384M] [0M,64M] 45 * [<2G] [384M,448M] [320M,384M] [0M,64M]
46 */ 46 */
47 BONITO_PCIMAP = BONITO_PCIMAP_PCIMAP_2 | 47 LOONGSON_PCIMAP = LOONGSON_PCIMAP_PCIMAP_2 |
48 BONITO_PCIMAP_WIN(2, BONITO_PCILO2_BASE) | 48 LOONGSON_PCIMAP_WIN(2, LOONGSON_PCILO2_BASE) |
49 BONITO_PCIMAP_WIN(1, BONITO_PCILO1_BASE) | 49 LOONGSON_PCIMAP_WIN(1, LOONGSON_PCILO1_BASE) |
50 BONITO_PCIMAP_WIN(0, 0); 50 LOONGSON_PCIMAP_WIN(0, 0);
51 51
52 /* 52 /*
53 * PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M] 53 * PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M]
54 */ 54 */
55 BONITO_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */ 55 LOONGSON_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */
56 /* size: 256M, burst transmission, pre-fetch enable, 64bit */ 56 /* size: 256M, burst transmission, pre-fetch enable, 64bit */
57 LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul; 57 LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul;
58 LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful; 58 LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful;
@@ -67,6 +67,14 @@ static void __init setup_pcimap(void)
67 /* can not change gnt to break pci transfer when device's gnt not 67 /* can not change gnt to break pci transfer when device's gnt not
68 deassert for some broken device */ 68 deassert for some broken device */
69 LOONGSON_PXARB_CFG = 0x00fe0105ul; 69 LOONGSON_PXARB_CFG = 0x00fe0105ul;
70
71#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
72 /*
73 * set cpu addr window2 to map CPU address space to PCI address space
74 */
75 LOONGSON_ADDRWIN_CPUTOPCI(ADDRWIN_WIN2, LOONGSON_CPU_MEM_SRC,
76 LOONGSON_PCI_MEM_DST, MMAP_CPUTOPCI_SIZE);
77#endif
70} 78}
71 79
72static int __init pcibios_init(void) 80static int __init pcibios_init(void)
diff --git a/arch/mips/loongson/common/platform.c b/arch/mips/loongson/common/platform.c
new file mode 100644
index 000000000000..be81777eb94d
--- /dev/null
+++ b/arch/mips/loongson/common/platform.c
@@ -0,0 +1,30 @@
1/*
2 * Copyright (C) 2009 Lemote Inc.
3 * Author: Wu Zhangjin, wuzj@lemote.com
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 */
10
11#include <linux/err.h>
12#include <linux/platform_device.h>
13
14static struct platform_device loongson2_cpufreq_device = {
15 .name = "loongson2_cpufreq",
16 .id = -1,
17};
18
19static int __init loongson2_cpufreq_init(void)
20{
21 struct cpuinfo_mips *c = &current_cpu_data;
22
23 /* Only 2F revision and it's successors support CPUFreq */
24 if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_LOONGSON2F)
25 return platform_device_register(&loongson2_cpufreq_device);
26
27 return -ENODEV;
28}
29
30arch_initcall(loongson2_cpufreq_init);
diff --git a/arch/mips/loongson/common/pm.c b/arch/mips/loongson/common/pm.c
new file mode 100644
index 000000000000..b625fec8a4d5
--- /dev/null
+++ b/arch/mips/loongson/common/pm.c
@@ -0,0 +1,161 @@
1/*
2 * loongson-specific suspend support
3 *
4 * Copyright (C) 2009 Lemote Inc.
5 * Author: Wu Zhangjin <wuzj@lemote.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12#include <linux/suspend.h>
13#include <linux/interrupt.h>
14#include <linux/pm.h>
15
16#include <asm/i8259.h>
17#include <asm/mipsregs.h>
18
19#include <loongson.h>
20
21static unsigned int __maybe_unused cached_master_mask; /* i8259A */
22static unsigned int __maybe_unused cached_slave_mask;
23static unsigned int __maybe_unused cached_bonito_irq_mask; /* bonito */
24
25void arch_suspend_disable_irqs(void)
26{
27 /* disable all mips events */
28 local_irq_disable();
29
30#ifdef CONFIG_I8259
31 /* disable all events of i8259A */
32 cached_slave_mask = inb(PIC_SLAVE_IMR);
33 cached_master_mask = inb(PIC_MASTER_IMR);
34
35 outb(0xff, PIC_SLAVE_IMR);
36 inb(PIC_SLAVE_IMR);
37 outb(0xff, PIC_MASTER_IMR);
38 inb(PIC_MASTER_IMR);
39#endif
40 /* disable all events of bonito */
41 cached_bonito_irq_mask = LOONGSON_INTEN;
42 LOONGSON_INTENCLR = 0xffff;
43 (void)LOONGSON_INTENCLR;
44}
45
46void arch_suspend_enable_irqs(void)
47{
48 /* enable all mips events */
49 local_irq_enable();
50#ifdef CONFIG_I8259
51 /* only enable the cached events of i8259A */
52 outb(cached_slave_mask, PIC_SLAVE_IMR);
53 outb(cached_master_mask, PIC_MASTER_IMR);
54#endif
55 /* enable all cached events of bonito */
56 LOONGSON_INTENSET = cached_bonito_irq_mask;
57 (void)LOONGSON_INTENSET;
58}
59
60/*
61 * Setup the board-specific events for waking up loongson from wait mode
62 */
63void __weak setup_wakeup_events(void)
64{
65}
66
67/*
68 * Check wakeup events
69 */
70int __weak wakeup_loongson(void)
71{
72 return 1;
73}
74
75/*
76 * If the events are really what we want to wakeup the CPU, wake it up
77 * otherwise put the CPU asleep again.
78 */
79static void wait_for_wakeup_events(void)
80{
81 while (!wakeup_loongson())
82 LOONGSON_CHIPCFG0 &= ~0x7;
83}
84
85/*
86 * Stop all perf counters
87 *
88 * $24 is the control register of Loongson perf counter
89 */
90static inline void stop_perf_counters(void)
91{
92 __write_64bit_c0_register($24, 0, 0);
93}
94
95
96static void loongson_suspend_enter(void)
97{
98 static unsigned int cached_cpu_freq;
99
100 /* setup wakeup events via enabling the IRQs */
101 setup_wakeup_events();
102
103 stop_perf_counters();
104
105 cached_cpu_freq = LOONGSON_CHIPCFG0;
106
107 /* Put CPU into wait mode */
108 LOONGSON_CHIPCFG0 &= ~0x7;
109
110 /* wait for the given events to wakeup cpu from wait mode */
111 wait_for_wakeup_events();
112
113 LOONGSON_CHIPCFG0 = cached_cpu_freq;
114 mmiowb();
115}
116
117void __weak mach_suspend(void)
118{
119}
120
121void __weak mach_resume(void)
122{
123}
124
125static int loongson_pm_enter(suspend_state_t state)
126{
127 mach_suspend();
128
129 /* processor specific suspend */
130 loongson_suspend_enter();
131
132 mach_resume();
133
134 return 0;
135}
136
137static int loongson_pm_valid_state(suspend_state_t state)
138{
139 switch (state) {
140 case PM_SUSPEND_ON:
141 case PM_SUSPEND_STANDBY:
142 case PM_SUSPEND_MEM:
143 return 1;
144
145 default:
146 return 0;
147 }
148}
149
150static struct platform_suspend_ops loongson_pm_ops = {
151 .valid = loongson_pm_valid_state,
152 .enter = loongson_pm_enter,
153};
154
155static int __init loongson_pm_init(void)
156{
157 suspend_set_ops(&loongson_pm_ops);
158
159 return 0;
160}
161arch_initcall(loongson_pm_init);
diff --git a/arch/mips/loongson/common/reset.c b/arch/mips/loongson/common/reset.c
index 97e918251edd..d57f1719da95 100644
--- a/arch/mips/loongson/common/reset.c
+++ b/arch/mips/loongson/common/reset.c
@@ -22,7 +22,7 @@ static void loongson_restart(char *command)
22 mach_prepare_reboot(); 22 mach_prepare_reboot();
23 23
24 /* reboot via jumping to boot base address */ 24 /* reboot via jumping to boot base address */
25 ((void (*)(void))ioremap_nocache(BONITO_BOOT_BASE, 4)) (); 25 ((void (*)(void))ioremap_nocache(LOONGSON_BOOT_BASE, 4)) ();
26} 26}
27 27
28static void loongson_halt(void) 28static void loongson_halt(void)
diff --git a/arch/mips/loongson/common/serial.c b/arch/mips/loongson/common/serial.c
new file mode 100644
index 000000000000..23b66a5f88cb
--- /dev/null
+++ b/arch/mips/loongson/common/serial.c
@@ -0,0 +1,76 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
7 *
8 * Copyright (C) 2009 Lemote, Inc.
9 * Author: Yan hua (yanhua@lemote.com)
10 * Author: Wu Zhangjin (wuzj@lemote.com)
11 */
12
13#include <linux/io.h>
14#include <linux/init.h>
15#include <linux/serial_8250.h>
16
17#include <asm/bootinfo.h>
18
19#include <loongson.h>
20#include <machine.h>
21
22#define PORT(int) \
23{ \
24 .irq = int, \
25 .uartclk = 1843200, \
26 .iotype = UPIO_PORT, \
27 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
28 .regshift = 0, \
29}
30
31#define PORT_M(int) \
32{ \
33 .irq = MIPS_CPU_IRQ_BASE + (int), \
34 .uartclk = 3686400, \
35 .iotype = UPIO_MEM, \
36 .membase = (void __iomem *)NULL, \
37 .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
38 .regshift = 0, \
39}
40
41static struct plat_serial8250_port uart8250_data[][2] = {
42 [MACH_LOONGSON_UNKNOWN] {},
43 [MACH_LEMOTE_FL2E] {PORT(4), {} },
44 [MACH_LEMOTE_FL2F] {PORT(3), {} },
45 [MACH_LEMOTE_ML2F7] {PORT_M(3), {} },
46 [MACH_LEMOTE_YL2F89] {PORT_M(3), {} },
47 [MACH_DEXXON_GDIUM2F10] {PORT_M(3), {} },
48 [MACH_LEMOTE_NAS] {PORT_M(3), {} },
49 [MACH_LEMOTE_LL2F] {PORT(3), {} },
50 [MACH_LOONGSON_END] {},
51};
52
53static struct platform_device uart8250_device = {
54 .name = "serial8250",
55 .id = PLAT8250_DEV_PLATFORM,
56};
57
58static int __init serial_init(void)
59{
60 unsigned char iotype;
61
62 iotype = uart8250_data[mips_machtype][0].iotype;
63
64 if (UPIO_MEM == iotype)
65 uart8250_data[mips_machtype][0].membase =
66 (void __iomem *)_loongson_uart_base;
67 else if (UPIO_PORT == iotype)
68 uart8250_data[mips_machtype][0].iobase =
69 loongson_uart_base - LOONGSON_PCIIO_BASE;
70
71 uart8250_device.dev.platform_data = uart8250_data[mips_machtype];
72
73 return platform_device_register(&uart8250_device);
74}
75
76device_initcall(serial_init);
diff --git a/arch/mips/loongson/common/time.c b/arch/mips/loongson/common/time.c
index 6e08c8270abe..35f0b66a94f5 100644
--- a/arch/mips/loongson/common/time.c
+++ b/arch/mips/loongson/common/time.c
@@ -14,11 +14,14 @@
14#include <asm/time.h> 14#include <asm/time.h>
15 15
16#include <loongson.h> 16#include <loongson.h>
17#include <cs5536/cs5536_mfgpt.h>
17 18
18void __init plat_time_init(void) 19void __init plat_time_init(void)
19{ 20{
20 /* setup mips r4k timer */ 21 /* setup mips r4k timer */
21 mips_hpt_frequency = cpu_clock_freq / 2; 22 mips_hpt_frequency = cpu_clock_freq / 2;
23
24 setup_mfgpt0_timer();
22} 25}
23 26
24void read_persistent_clock(struct timespec *ts) 27void read_persistent_clock(struct timespec *ts)
diff --git a/arch/mips/loongson/common/uart_base.c b/arch/mips/loongson/common/uart_base.c
new file mode 100644
index 000000000000..78ff66ae749e
--- /dev/null
+++ b/arch/mips/loongson/common/uart_base.c
@@ -0,0 +1,45 @@
1/*
2 * Copyright (C) 2009 Lemote Inc.
3 * Author: Wu Zhangjin, wuzj@lemote.com
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 */
10
11#include <linux/module.h>
12#include <asm/bootinfo.h>
13
14#include <loongson.h>
15
16/* ioremapped */
17unsigned long _loongson_uart_base;
18EXPORT_SYMBOL(_loongson_uart_base);
19/* raw */
20unsigned long loongson_uart_base;
21EXPORT_SYMBOL(loongson_uart_base);
22
23void prom_init_loongson_uart_base(void)
24{
25 switch (mips_machtype) {
26 case MACH_LEMOTE_FL2E:
27 loongson_uart_base = LOONGSON_PCIIO_BASE + 0x3f8;
28 break;
29 case MACH_LEMOTE_FL2F:
30 case MACH_LEMOTE_LL2F:
31 loongson_uart_base = LOONGSON_PCIIO_BASE + 0x2f8;
32 break;
33 case MACH_LEMOTE_ML2F7:
34 case MACH_LEMOTE_YL2F89:
35 case MACH_DEXXON_GDIUM2F10:
36 case MACH_LEMOTE_NAS:
37 default:
38 /* The CPU provided serial port */
39 loongson_uart_base = LOONGSON_LIO1_BASE + 0x3f8;
40 break;
41 }
42
43 _loongson_uart_base =
44 (unsigned long)ioremap_nocache(loongson_uart_base, 8);
45}
diff --git a/arch/mips/loongson/fuloong-2e/irq.c b/arch/mips/loongson/fuloong-2e/irq.c
index 7888cf69424a..320e9379bdd7 100644
--- a/arch/mips/loongson/fuloong-2e/irq.c
+++ b/arch/mips/loongson/fuloong-2e/irq.c
@@ -47,8 +47,8 @@ static struct irqaction cascade_irqaction = {
47void __init set_irq_trigger_mode(void) 47void __init set_irq_trigger_mode(void)
48{ 48{
49 /* most bonito irq should be level triggered */ 49 /* most bonito irq should be level triggered */
50 BONITO_INTEDGE = BONITO_ICU_SYSTEMERR | BONITO_ICU_MASTERERR | 50 LOONGSON_INTEDGE = LOONGSON_ICU_SYSTEMERR | LOONGSON_ICU_MASTERERR |
51 BONITO_ICU_RETRYERR | BONITO_ICU_MBOXES; 51 LOONGSON_ICU_RETRYERR | LOONGSON_ICU_MBOXES;
52} 52}
53 53
54void __init mach_init_irq(void) 54void __init mach_init_irq(void)
diff --git a/arch/mips/loongson/fuloong-2e/reset.c b/arch/mips/loongson/fuloong-2e/reset.c
index 677fe186db95..fc16c677d476 100644
--- a/arch/mips/loongson/fuloong-2e/reset.c
+++ b/arch/mips/loongson/fuloong-2e/reset.c
@@ -14,8 +14,8 @@
14 14
15void mach_prepare_reboot(void) 15void mach_prepare_reboot(void)
16{ 16{
17 BONITO_BONGENCFG &= ~(1 << 2); 17 LOONGSON_GENCFG &= ~(1 << 2);
18 BONITO_BONGENCFG |= (1 << 2); 18 LOONGSON_GENCFG |= (1 << 2);
19} 19}
20 20
21void mach_prepare_shutdown(void) 21void mach_prepare_shutdown(void)
diff --git a/arch/mips/loongson/lemote-2f/Makefile b/arch/mips/loongson/lemote-2f/Makefile
new file mode 100644
index 000000000000..4d84b27dc41b
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/Makefile
@@ -0,0 +1,11 @@
1#
2# Makefile for lemote loongson2f family machines
3#
4
5obj-y += irq.o reset.o ec_kb3310b.o
6
7#
8# Suspend Support
9#
10
11obj-$(CONFIG_LOONGSON_SUSPEND) += pm.o
diff --git a/arch/mips/loongson/lemote-2f/ec_kb3310b.c b/arch/mips/loongson/lemote-2f/ec_kb3310b.c
new file mode 100644
index 000000000000..4d84111a2cd4
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/ec_kb3310b.c
@@ -0,0 +1,130 @@
1/*
2 * Basic KB3310B Embedded Controller support for the YeeLoong 2F netbook
3 *
4 * Copyright (C) 2008 Lemote Inc.
5 * Author: liujl <liujl@lemote.com>, 2008-04-20
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#include <linux/module.h>
14#include <linux/spinlock.h>
15#include <linux/delay.h>
16
17#include "ec_kb3310b.h"
18
19static DEFINE_SPINLOCK(index_access_lock);
20static DEFINE_SPINLOCK(port_access_lock);
21
22unsigned char ec_read(unsigned short addr)
23{
24 unsigned char value;
25 unsigned long flags;
26
27 spin_lock_irqsave(&index_access_lock, flags);
28 outb((addr & 0xff00) >> 8, EC_IO_PORT_HIGH);
29 outb((addr & 0x00ff), EC_IO_PORT_LOW);
30 value = inb(EC_IO_PORT_DATA);
31 spin_unlock_irqrestore(&index_access_lock, flags);
32
33 return value;
34}
35EXPORT_SYMBOL_GPL(ec_read);
36
37void ec_write(unsigned short addr, unsigned char val)
38{
39 unsigned long flags;
40
41 spin_lock_irqsave(&index_access_lock, flags);
42 outb((addr & 0xff00) >> 8, EC_IO_PORT_HIGH);
43 outb((addr & 0x00ff), EC_IO_PORT_LOW);
44 outb(val, EC_IO_PORT_DATA);
45 /* flush the write action */
46 inb(EC_IO_PORT_DATA);
47 spin_unlock_irqrestore(&index_access_lock, flags);
48
49 return;
50}
51EXPORT_SYMBOL_GPL(ec_write);
52
53/*
54 * This function is used for EC command writes and corresponding status queries.
55 */
56int ec_query_seq(unsigned char cmd)
57{
58 int timeout;
59 unsigned char status;
60 unsigned long flags;
61 int ret = 0;
62
63 spin_lock_irqsave(&port_access_lock, flags);
64
65 /* make chip goto reset mode */
66 udelay(EC_REG_DELAY);
67 outb(cmd, EC_CMD_PORT);
68 udelay(EC_REG_DELAY);
69
70 /* check if the command is received by ec */
71 timeout = EC_CMD_TIMEOUT;
72 status = inb(EC_STS_PORT);
73 while (timeout-- && (status & (1 << 1))) {
74 status = inb(EC_STS_PORT);
75 udelay(EC_REG_DELAY);
76 }
77
78 if (timeout <= 0) {
79 printk(KERN_ERR "%s: deadable error : timeout...\n", __func__);
80 ret = -EINVAL;
81 } else
82 printk(KERN_INFO
83 "(%x/%d)ec issued command %d status : 0x%x\n",
84 timeout, EC_CMD_TIMEOUT - timeout, cmd, status);
85
86 spin_unlock_irqrestore(&port_access_lock, flags);
87
88 return ret;
89}
90EXPORT_SYMBOL_GPL(ec_query_seq);
91
92/*
93 * Send query command to EC to get the proper event number
94 */
95int ec_query_event_num(void)
96{
97 return ec_query_seq(CMD_GET_EVENT_NUM);
98}
99EXPORT_SYMBOL(ec_query_event_num);
100
101/*
102 * Get event number from EC
103 *
104 * NOTE: This routine must follow the query_event_num function in the
105 * interrupt.
106 */
107int ec_get_event_num(void)
108{
109 int timeout = 100;
110 unsigned char value;
111 unsigned char status;
112
113 udelay(EC_REG_DELAY);
114 status = inb(EC_STS_PORT);
115 udelay(EC_REG_DELAY);
116 while (timeout-- && !(status & (1 << 0))) {
117 status = inb(EC_STS_PORT);
118 udelay(EC_REG_DELAY);
119 }
120 if (timeout <= 0) {
121 pr_info("%s: get event number timeout.\n", __func__);
122
123 return -EINVAL;
124 }
125 value = inb(EC_DAT_PORT);
126 udelay(EC_REG_DELAY);
127
128 return value;
129}
130EXPORT_SYMBOL(ec_get_event_num);
diff --git a/arch/mips/loongson/lemote-2f/ec_kb3310b.h b/arch/mips/loongson/lemote-2f/ec_kb3310b.h
new file mode 100644
index 000000000000..1595a21b315b
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/ec_kb3310b.h
@@ -0,0 +1,188 @@
1/*
2 * KB3310B Embedded Controller
3 *
4 * Copyright (C) 2008 Lemote Inc.
5 * Author: liujl <liujl@lemote.com>, 2008-03-14
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#ifndef _EC_KB3310B_H
14#define _EC_KB3310B_H
15
16extern unsigned char ec_read(unsigned short addr);
17extern void ec_write(unsigned short addr, unsigned char val);
18extern int ec_query_seq(unsigned char cmd);
19extern int ec_query_event_num(void);
20extern int ec_get_event_num(void);
21
22typedef int (*sci_handler) (int status);
23extern sci_handler yeeloong_report_lid_status;
24
25#define SCI_IRQ_NUM 0x0A
26
27/*
28 * The following registers are determined by the EC index configuration.
29 * 1, fill the PORT_HIGH as EC register high part.
30 * 2, fill the PORT_LOW as EC register low part.
31 * 3, fill the PORT_DATA as EC register write data or get the data from it.
32 */
33#define EC_IO_PORT_HIGH 0x0381
34#define EC_IO_PORT_LOW 0x0382
35#define EC_IO_PORT_DATA 0x0383
36
37/*
38 * EC delay time is 500us for register and status access
39 */
40#define EC_REG_DELAY 500 /* unit : us */
41#define EC_CMD_TIMEOUT 0x1000
42
43/*
44 * EC access port for SCI communication
45 */
46#define EC_CMD_PORT 0x66
47#define EC_STS_PORT 0x66
48#define EC_DAT_PORT 0x62
49#define CMD_INIT_IDLE_MODE 0xdd
50#define CMD_EXIT_IDLE_MODE 0xdf
51#define CMD_INIT_RESET_MODE 0xd8
52#define CMD_REBOOT_SYSTEM 0x8c
53#define CMD_GET_EVENT_NUM 0x84
54#define CMD_PROGRAM_PIECE 0xda
55
56/* temperature & fan registers */
57#define REG_TEMPERATURE_VALUE 0xF458
58#define REG_FAN_AUTO_MAN_SWITCH 0xF459
59#define BIT_FAN_AUTO 0
60#define BIT_FAN_MANUAL 1
61#define REG_FAN_CONTROL 0xF4D2
62#define BIT_FAN_CONTROL_ON (1 << 0)
63#define BIT_FAN_CONTROL_OFF (0 << 0)
64#define REG_FAN_STATUS 0xF4DA
65#define BIT_FAN_STATUS_ON (1 << 0)
66#define BIT_FAN_STATUS_OFF (0 << 0)
67#define REG_FAN_SPEED_HIGH 0xFE22
68#define REG_FAN_SPEED_LOW 0xFE23
69#define REG_FAN_SPEED_LEVEL 0xF4CC
70/* fan speed divider */
71#define FAN_SPEED_DIVIDER 480000 /* (60*1000*1000/62.5/2)*/
72
73/* battery registers */
74#define REG_BAT_DESIGN_CAP_HIGH 0xF77D
75#define REG_BAT_DESIGN_CAP_LOW 0xF77E
76#define REG_BAT_FULLCHG_CAP_HIGH 0xF780
77#define REG_BAT_FULLCHG_CAP_LOW 0xF781
78#define REG_BAT_DESIGN_VOL_HIGH 0xF782
79#define REG_BAT_DESIGN_VOL_LOW 0xF783
80#define REG_BAT_CURRENT_HIGH 0xF784
81#define REG_BAT_CURRENT_LOW 0xF785
82#define REG_BAT_VOLTAGE_HIGH 0xF786
83#define REG_BAT_VOLTAGE_LOW 0xF787
84#define REG_BAT_TEMPERATURE_HIGH 0xF788
85#define REG_BAT_TEMPERATURE_LOW 0xF789
86#define REG_BAT_RELATIVE_CAP_HIGH 0xF492
87#define REG_BAT_RELATIVE_CAP_LOW 0xF493
88#define REG_BAT_VENDOR 0xF4C4
89#define FLAG_BAT_VENDOR_SANYO 0x01
90#define FLAG_BAT_VENDOR_SIMPLO 0x02
91#define REG_BAT_CELL_COUNT 0xF4C6
92#define FLAG_BAT_CELL_3S1P 0x03
93#define FLAG_BAT_CELL_3S2P 0x06
94#define REG_BAT_CHARGE 0xF4A2
95#define FLAG_BAT_CHARGE_DISCHARGE 0x01
96#define FLAG_BAT_CHARGE_CHARGE 0x02
97#define FLAG_BAT_CHARGE_ACPOWER 0x00
98#define REG_BAT_STATUS 0xF4B0
99#define BIT_BAT_STATUS_LOW (1 << 5)
100#define BIT_BAT_STATUS_DESTROY (1 << 2)
101#define BIT_BAT_STATUS_FULL (1 << 1)
102#define BIT_BAT_STATUS_IN (1 << 0)
103#define REG_BAT_CHARGE_STATUS 0xF4B1
104#define BIT_BAT_CHARGE_STATUS_OVERTEMP (1 << 2)
105#define BIT_BAT_CHARGE_STATUS_PRECHG (1 << 1)
106#define REG_BAT_STATE 0xF482
107#define BIT_BAT_STATE_CHARGING (1 << 1)
108#define BIT_BAT_STATE_DISCHARGING (1 << 0)
109#define REG_BAT_POWER 0xF440
110#define BIT_BAT_POWER_S3 (1 << 2)
111#define BIT_BAT_POWER_ON (1 << 1)
112#define BIT_BAT_POWER_ACIN (1 << 0)
113
114/* other registers */
115/* Audio: rd/wr */
116#define REG_AUDIO_VOLUME 0xF46C
117#define REG_AUDIO_MUTE 0xF4E7
118#define REG_AUDIO_BEEP 0xF4D0
119/* USB port power or not: rd/wr */
120#define REG_USB0_FLAG 0xF461
121#define REG_USB1_FLAG 0xF462
122#define REG_USB2_FLAG 0xF463
123#define BIT_USB_FLAG_ON 1
124#define BIT_USB_FLAG_OFF 0
125/* LID */
126#define REG_LID_DETECT 0xF4BD
127#define BIT_LID_DETECT_ON 1
128#define BIT_LID_DETECT_OFF 0
129/* CRT */
130#define REG_CRT_DETECT 0xF4AD
131#define BIT_CRT_DETECT_PLUG 1
132#define BIT_CRT_DETECT_UNPLUG 0
133/* LCD backlight brightness adjust: 9 levels */
134#define REG_DISPLAY_BRIGHTNESS 0xF4F5
135/* Black screen Status */
136#define BIT_DISPLAY_LCD_ON 1
137#define BIT_DISPLAY_LCD_OFF 0
138/* LCD backlight control: off/restore */
139#define REG_BACKLIGHT_CTRL 0xF7BD
140#define BIT_BACKLIGHT_ON 1
141#define BIT_BACKLIGHT_OFF 0
142/* Reset the machine auto-clear: rd/wr */
143#define REG_RESET 0xF4EC
144#define BIT_RESET_ON 1
145/* Light the led: rd/wr */
146#define REG_LED 0xF4C8
147#define BIT_LED_RED_POWER (1 << 0)
148#define BIT_LED_ORANGE_POWER (1 << 1)
149#define BIT_LED_GREEN_CHARGE (1 << 2)
150#define BIT_LED_RED_CHARGE (1 << 3)
151#define BIT_LED_NUMLOCK (1 << 4)
152/* Test led mode, all led on/off */
153#define REG_LED_TEST 0xF4C2
154#define BIT_LED_TEST_IN 1
155#define BIT_LED_TEST_OUT 0
156/* Camera on/off */
157#define REG_CAMERA_STATUS 0xF46A
158#define BIT_CAMERA_STATUS_ON 1
159#define BIT_CAMERA_STATUS_OFF 0
160#define REG_CAMERA_CONTROL 0xF7B7
161#define BIT_CAMERA_CONTROL_OFF 0
162#define BIT_CAMERA_CONTROL_ON 1
163/* Wlan Status */
164#define REG_WLAN 0xF4FA
165#define BIT_WLAN_ON 1
166#define BIT_WLAN_OFF 0
167#define REG_DISPLAY_LCD 0xF79F
168
169/* SCI Event Number from EC */
170enum {
171 EVENT_LID = 0x23, /* LID open/close */
172 EVENT_DISPLAY_TOGGLE, /* Fn+F3 for display switch */
173 EVENT_SLEEP, /* Fn+F1 for entering sleep mode */
174 EVENT_OVERTEMP, /* Over-temperature happened */
175 EVENT_CRT_DETECT, /* CRT is connected */
176 EVENT_CAMERA, /* Camera on/off */
177 EVENT_USB_OC2, /* USB2 Over Current occurred */
178 EVENT_USB_OC0, /* USB0 Over Current occurred */
179 EVENT_BLACK_SCREEN, /* Turn on/off backlight */
180 EVENT_AUDIO_MUTE, /* Mute on/off */
181 EVENT_DISPLAY_BRIGHTNESS,/* LCD backlight brightness adjust */
182 EVENT_AC_BAT, /* AC & Battery relative issue */
183 EVENT_AUDIO_VOLUME, /* Volume adjust */
184 EVENT_WLAN, /* Wlan on/off */
185 EVENT_END
186};
187
188#endif /* !_EC_KB3310B_H */
diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c
new file mode 100644
index 000000000000..77d32f9cf31e
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/irq.c
@@ -0,0 +1,134 @@
1/*
2 * Copyright (C) 2007 Lemote Inc.
3 * Author: Fuxin Zhang, zhangfx@lemote.com
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
9 */
10
11#include <linux/interrupt.h>
12#include <linux/module.h>
13
14#include <asm/irq_cpu.h>
15#include <asm/i8259.h>
16#include <asm/mipsregs.h>
17
18#include <loongson.h>
19#include <machine.h>
20
21#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* cpu timer */
22#define LOONGSON_PERFCNT_IRQ (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */
23#define LOONGSON_NORTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 6) /* bonito */
24#define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 3) /* cpu serial port */
25#define LOONGSON_SOUTH_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 2) /* i8259 */
26
27#define LOONGSON_INT_BIT_INT0 (1 << 11)
28#define LOONGSON_INT_BIT_INT1 (1 << 12)
29
30/*
31 * The generic i8259_irq() make the kernel hang on booting. Since we cannot
32 * get the irq via the IRR directly, we access the ISR instead.
33 */
34int mach_i8259_irq(void)
35{
36 int irq, isr;
37
38 irq = -1;
39
40 if ((LOONGSON_INTISR & LOONGSON_INTEN) & LOONGSON_INT_BIT_INT0) {
41 spin_lock(&i8259A_lock);
42 isr = inb(PIC_MASTER_CMD) &
43 ~inb(PIC_MASTER_IMR) & ~(1 << PIC_CASCADE_IR);
44 if (!isr)
45 isr = (inb(PIC_SLAVE_CMD) & ~inb(PIC_SLAVE_IMR)) << 8;
46 irq = ffs(isr) - 1;
47 if (unlikely(irq == 7)) {
48 /*
49 * This may be a spurious interrupt.
50 *
51 * Read the interrupt status register (ISR). If the most
52 * significant bit is not set then there is no valid
53 * interrupt.
54 */
55 outb(0x0B, PIC_MASTER_ISR); /* ISR register */
56 if (~inb(PIC_MASTER_ISR) & 0x80)
57 irq = -1;
58 }
59 spin_unlock(&i8259A_lock);
60 }
61
62 return irq;
63}
64EXPORT_SYMBOL(mach_i8259_irq);
65
66static void i8259_irqdispatch(void)
67{
68 int irq;
69
70 irq = mach_i8259_irq();
71 if (irq >= 0)
72 do_IRQ(irq);
73 else
74 spurious_interrupt();
75}
76
77void mach_irq_dispatch(unsigned int pending)
78{
79 if (pending & CAUSEF_IP7)
80 do_IRQ(LOONGSON_TIMER_IRQ);
81 else if (pending & CAUSEF_IP6) { /* North Bridge, Perf counter */
82#ifdef CONFIG_OPROFILE
83 do_IRQ(LOONGSON2_PERFCNT_IRQ);
84#endif
85 bonito_irqdispatch();
86 } else if (pending & CAUSEF_IP3) /* CPU UART */
87 do_IRQ(LOONGSON_UART_IRQ);
88 else if (pending & CAUSEF_IP2) /* South Bridge */
89 i8259_irqdispatch();
90 else
91 spurious_interrupt();
92}
93
94void __init set_irq_trigger_mode(void)
95{
96 /* setup cs5536 as high level trigger */
97 LOONGSON_INTPOL = LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1;
98 LOONGSON_INTEDGE &= ~(LOONGSON_INT_BIT_INT0 | LOONGSON_INT_BIT_INT1);
99}
100
101static irqreturn_t ip6_action(int cpl, void *dev_id)
102{
103 return IRQ_HANDLED;
104}
105
106struct irqaction ip6_irqaction = {
107 .handler = ip6_action,
108 .name = "cascade",
109 .flags = IRQF_SHARED,
110};
111
112struct irqaction cascade_irqaction = {
113 .handler = no_action,
114 .name = "cascade",
115};
116
117void __init mach_init_irq(void)
118{
119 /* init all controller
120 * 0-15 ------> i8259 interrupt
121 * 16-23 ------> mips cpu interrupt
122 * 32-63 ------> bonito irq
123 */
124
125 /* Sets the first-level interrupt dispatcher. */
126 mips_cpu_irq_init();
127 init_i8259_irqs();
128 bonito_irq_init();
129
130 /* setup north bridge irq (bonito) */
131 setup_irq(LOONGSON_NORTH_BRIDGE_IRQ, &ip6_irqaction);
132 /* setup source bridge irq (i8259) */
133 setup_irq(LOONGSON_SOUTH_BRIDGE_IRQ, &cascade_irqaction);
134}
diff --git a/arch/mips/loongson/lemote-2f/pm.c b/arch/mips/loongson/lemote-2f/pm.c
new file mode 100644
index 000000000000..d7af2e616592
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/pm.c
@@ -0,0 +1,149 @@
1/*
2 * Lemote loongson2f family machines' specific suspend support
3 *
4 * Copyright (C) 2009 Lemote Inc.
5 * Author: Wu Zhangjin <wuzj@lemote.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 */
12
13#include <linux/suspend.h>
14#include <linux/interrupt.h>
15#include <linux/pm.h>
16#include <linux/i8042.h>
17#include <linux/module.h>
18
19#include <asm/i8259.h>
20#include <asm/mipsregs.h>
21#include <asm/bootinfo.h>
22
23#include <loongson.h>
24
25#include <cs5536/cs5536_mfgpt.h>
26#include "ec_kb3310b.h"
27
28#define I8042_KBD_IRQ 1
29#define I8042_CTR_KBDINT 0x01
30#define I8042_CTR_KBDDIS 0x10
31
32static unsigned char i8042_ctr;
33
34static int i8042_enable_kbd_port(void)
35{
36 if (i8042_command(&i8042_ctr, I8042_CMD_CTL_RCTR)) {
37 pr_err("i8042.c: Can't read CTR while enabling i8042 kbd port."
38 "\n");
39 return -EIO;
40 }
41
42 i8042_ctr &= ~I8042_CTR_KBDDIS;
43 i8042_ctr |= I8042_CTR_KBDINT;
44
45 if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
46 i8042_ctr &= ~I8042_CTR_KBDINT;
47 i8042_ctr |= I8042_CTR_KBDDIS;
48 pr_err("i8042.c: Failed to enable KBD port.\n");
49
50 return -EIO;
51 }
52
53 return 0;
54}
55
56void setup_wakeup_events(void)
57{
58 int irq_mask;
59
60 switch (mips_machtype) {
61 case MACH_LEMOTE_ML2F7:
62 case MACH_LEMOTE_YL2F89:
63 /* open the keyboard irq in i8259A */
64 outb((0xff & ~(1 << I8042_KBD_IRQ)), PIC_MASTER_IMR);
65 irq_mask = inb(PIC_MASTER_IMR);
66
67 /* enable keyboard port */
68 i8042_enable_kbd_port();
69
70 /* Wakeup CPU via SCI lid open event */
71 outb(irq_mask & ~(1 << PIC_CASCADE_IR), PIC_MASTER_IMR);
72 inb(PIC_MASTER_IMR);
73 outb(0xff & ~(1 << (SCI_IRQ_NUM - 8)), PIC_SLAVE_IMR);
74 inb(PIC_SLAVE_IMR);
75
76 break;
77
78 default:
79 break;
80 }
81}
82
83static struct delayed_work lid_task;
84static int initialized;
85/* yeeloong_report_lid_status will be implemented in yeeloong_laptop.c */
86sci_handler yeeloong_report_lid_status;
87EXPORT_SYMBOL(yeeloong_report_lid_status);
88static void yeeloong_lid_update_task(struct work_struct *work)
89{
90 if (yeeloong_report_lid_status)
91 yeeloong_report_lid_status(BIT_LID_DETECT_ON);
92}
93
94int wakeup_loongson(void)
95{
96 int irq;
97
98 /* query the interrupt number */
99 irq = mach_i8259_irq();
100 if (irq < 0)
101 return 0;
102
103 printk(KERN_INFO "%s: irq = %d\n", __func__, irq);
104
105 if (irq == I8042_KBD_IRQ)
106 return 1;
107 else if (irq == SCI_IRQ_NUM) {
108 int ret, sci_event;
109 /* query the event number */
110 ret = ec_query_seq(CMD_GET_EVENT_NUM);
111 if (ret < 0)
112 return 0;
113 sci_event = ec_get_event_num();
114 if (sci_event < 0)
115 return 0;
116 if (sci_event == EVENT_LID) {
117 int lid_status;
118 /* check the LID status */
119 lid_status = ec_read(REG_LID_DETECT);
120 /* wakeup cpu when people open the LID */
121 if (lid_status == BIT_LID_DETECT_ON) {
122 /* If we call it directly here, the WARNING
123 * will be sent out by getnstimeofday
124 * via "WARN_ON(timekeeping_suspended);"
125 * because we can not schedule in suspend mode.
126 */
127 if (initialized == 0) {
128 INIT_DELAYED_WORK(&lid_task,
129 yeeloong_lid_update_task);
130 initialized = 1;
131 }
132 schedule_delayed_work(&lid_task, 1);
133 return 1;
134 }
135 }
136 }
137
138 return 0;
139}
140
141void __weak mach_suspend(void)
142{
143 disable_mfgpt0_counter();
144}
145
146void __weak mach_resume(void)
147{
148 enable_mfgpt0_counter();
149}
diff --git a/arch/mips/loongson/lemote-2f/reset.c b/arch/mips/loongson/lemote-2f/reset.c
new file mode 100644
index 000000000000..51d1a60d5349
--- /dev/null
+++ b/arch/mips/loongson/lemote-2f/reset.c
@@ -0,0 +1,159 @@
1/* Board-specific reboot/shutdown routines
2 *
3 * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca>
4 *
5 * Copyright (C) 2009 Lemote Inc.
6 * Author: Wu Zhangjin, wuzj@lemote.com
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14#include <linux/io.h>
15#include <linux/delay.h>
16#include <linux/types.h>
17
18#include <asm/bootinfo.h>
19
20#include <loongson.h>
21
22#include <cs5536/cs5536.h>
23#include "ec_kb3310b.h"
24
25static void reset_cpu(void)
26{
27 /*
28 * reset cpu to full speed, this is needed when enabling cpu frequency
29 * scalling
30 */
31 LOONGSON_CHIPCFG0 |= 0x7;
32}
33
34/* reset support for fuloong2f */
35
36static void fl2f_reboot(void)
37{
38 reset_cpu();
39
40 /* send a reset signal to south bridge.
41 *
42 * NOTE: if enable "Power Management" in kernel, rtl8169 will not reset
43 * normally with this reset operation and it will not work in PMON, but
44 * you can type halt command and then reboot, seems the hardware reset
45 * logic not work normally.
46 */
47 {
48 u32 hi, lo;
49 _rdmsr(DIVIL_MSR_REG(DIVIL_SOFT_RESET), &hi, &lo);
50 lo |= 0x00000001;
51 _wrmsr(DIVIL_MSR_REG(DIVIL_SOFT_RESET), hi, lo);
52 }
53}
54
55static void fl2f_shutdown(void)
56{
57 u32 hi, lo, val;
58 int gpio_base;
59
60 /* get gpio base */
61 _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_GPIO), &hi, &lo);
62 gpio_base = lo & 0xff00;
63
64 /* make cs5536 gpio13 output enable */
65 val = inl(gpio_base + GPIOL_OUT_EN);
66 val &= ~(1 << (16 + 13));
67 val |= (1 << 13);
68 outl(val, gpio_base + GPIOL_OUT_EN);
69 mmiowb();
70 /* make cs5536 gpio13 output low level voltage. */
71 val = inl(gpio_base + GPIOL_OUT_VAL) & ~(1 << (13));
72 val |= (1 << (16 + 13));
73 outl(val, gpio_base + GPIOL_OUT_VAL);
74 mmiowb();
75}
76
77/* reset support for yeeloong2f and mengloong2f notebook */
78
79void ml2f_reboot(void)
80{
81 reset_cpu();
82
83 /* sending an reset signal to EC(embedded controller) */
84 ec_write(REG_RESET, BIT_RESET_ON);
85}
86
87#define yl2f89_reboot ml2f_reboot
88
89/* menglong(7inches) laptop has different shutdown logic from 8.9inches */
90#define EC_SHUTDOWN_IO_PORT_HIGH 0xff2d
91#define EC_SHUTDOWN_IO_PORT_LOW 0xff2e
92#define EC_SHUTDOWN_IO_PORT_DATA 0xff2f
93#define REG_SHUTDOWN_HIGH 0xFC
94#define REG_SHUTDOWN_LOW 0x29
95#define BIT_SHUTDOWN_ON (1 << 1)
96
97static void ml2f_shutdown(void)
98{
99 u8 val;
100 u64 i;
101
102 outb(REG_SHUTDOWN_HIGH, EC_SHUTDOWN_IO_PORT_HIGH);
103 outb(REG_SHUTDOWN_LOW, EC_SHUTDOWN_IO_PORT_LOW);
104 mmiowb();
105 val = inb(EC_SHUTDOWN_IO_PORT_DATA);
106 outb(val & (~BIT_SHUTDOWN_ON), EC_SHUTDOWN_IO_PORT_DATA);
107 mmiowb();
108 /* need enough wait here... how many microseconds needs? */
109 for (i = 0; i < 0x10000; i++)
110 delay();
111 outb(val | BIT_SHUTDOWN_ON, EC_SHUTDOWN_IO_PORT_DATA);
112 mmiowb();
113}
114
115static void yl2f89_shutdown(void)
116{
117 /* cpu-gpio0 output low */
118 LOONGSON_GPIODATA &= ~0x00000001;
119 /* cpu-gpio0 as output */
120 LOONGSON_GPIOIE &= ~0x00000001;
121}
122
123void mach_prepare_reboot(void)
124{
125 switch (mips_machtype) {
126 case MACH_LEMOTE_FL2F:
127 case MACH_LEMOTE_NAS:
128 case MACH_LEMOTE_LL2F:
129 fl2f_reboot();
130 break;
131 case MACH_LEMOTE_ML2F7:
132 ml2f_reboot();
133 break;
134 case MACH_LEMOTE_YL2F89:
135 yl2f89_reboot();
136 break;
137 default:
138 break;
139 }
140}
141
142void mach_prepare_shutdown(void)
143{
144 switch (mips_machtype) {
145 case MACH_LEMOTE_FL2F:
146 case MACH_LEMOTE_NAS:
147 case MACH_LEMOTE_LL2F:
148 fl2f_shutdown();
149 break;
150 case MACH_LEMOTE_ML2F7:
151 ml2f_shutdown();
152 break;
153 case MACH_LEMOTE_YL2F89:
154 yl2f89_shutdown();
155 break;
156 default:
157 break;
158 }
159}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 15:46:07 -0500