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-rw-r--r--arch/mips/loongson/common/Makefile6
-rw-r--r--arch/mips/loongson/common/cs5536/Makefile8
-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_ohci.c147
-rw-r--r--arch/mips/loongson/common/cs5536/cs5536_pci.c87
8 files changed, 1041 insertions, 0 deletions
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index be6adf7eb825..a82527fdfb65 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -10,3 +10,9 @@ obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \
#
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_SERIAL_8250) += serial.o
+
+#
+# Enable CS5536 Virtual Support Module(VSM) to virtulize the PCI configure
+# space
+#
+obj-$(CONFIG_CS5536) += cs5536/
diff --git a/arch/mips/loongson/common/cs5536/Makefile b/arch/mips/loongson/common/cs5536/Makefile
new file mode 100644
index 000000000000..31657ee037d8
--- /dev/null
+++ b/arch/mips/loongson/common/cs5536/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for CS5536 support.
+#
+
+obj-$(CONFIG_CS5536) += cs5536_pci.o cs5536_ide.o cs5536_acc.o cs5536_ohci.o \
+ cs5536_isa.o cs5536_ehci.o
+
+EXTRA_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 @@
+/*
+ * the ACC Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc.
+ * Author : jlliu, liujl@lemote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+void pci_acc_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ lo |= (0x03 << 8);
+ else
+ lo &= ~(0x03 << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_PAE), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_ACC_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if (value & 0x01) {
+ value &= 0xfffffffc;
+ hi = 0xA0000000 | ((value & 0x000ff000) >> 12);
+ lo = 0x000fff80 | ((value & 0x00000fff) << 20);
+ _wrmsr(GLIU_MSR_REG(GLIU_IOD_BM1), hi, lo);
+ }
+ break;
+ case PCI_ACC_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ /* disable all the usb interrupt in PIC */
+ lo &= ~(0xf << PIC_YSEL_LOW_ACC_SHIFT);
+ if (value) /* enable all the acc interrupt in PIC */
+ lo |= (CS5536_ACC_INTR << PIC_YSEL_LOW_ACC_SHIFT);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
+ break;
+ default:
+ break;
+ }
+}
+
+u32 pci_acc_read_reg(int reg)
+{
+ u32 hi, lo;
+ u32 conf_data = 0;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ACC_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(GLIU_MSR_REG(GLIU_IOD_BM1), &hi, &lo);
+ if (((lo & 0xfff00000) || (hi & 0x000000ff))
+ && ((hi & 0xf0000000) == 0xa0000000))
+ conf_data |= PCI_COMMAND_IO;
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if ((lo & 0x300) == 0x300)
+ conf_data |= PCI_COMMAND_MASTER;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(ACC_MSR_REG(ACC_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_ACC_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_ACC_FLAG) {
+ conf_data = CS5536_ACC_RANGE |
+ PCI_BASE_ADDRESS_SPACE_IO;
+ lo &= ~SOFT_BAR_ACC_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(GLIU_MSR_REG(GLIU_IOD_BM1), &hi, &lo);
+ conf_data = (hi & 0x000000ff) << 12;
+ conf_data |= (lo & 0xfff00000) >> 20;
+ conf_data |= 0x01;
+ conf_data &= ~0x02;
+ }
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ACC_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data =
+ CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_ACC_INTR);
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
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 @@
+/*
+ * the EHCI Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc.
+ * Author : jlliu, liujl@lemote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+void pci_ehci_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ hi |= PCI_COMMAND_MASTER;
+ else
+ hi &= ~PCI_COMMAND_MASTER;
+
+ if (value & PCI_COMMAND_MEMORY)
+ hi |= PCI_COMMAND_MEMORY;
+ else
+ hi &= ~PCI_COMMAND_MEMORY;
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_EHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if ((value & 0x01) == 0x00) {
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+
+ value &= 0xfffffff0;
+ hi = 0x40000000 | ((value & 0xff000000) >> 24);
+ lo = 0x000fffff | ((value & 0x00fff000) << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM4), hi, lo);
+ }
+ break;
+ case PCI_EHCI_LEGSMIEN_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ hi &= 0x003f0000;
+ hi |= (value & 0x3f) << 16;
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+ break;
+ case PCI_EHCI_FLADJ_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ hi &= ~0x00003f00;
+ hi |= value & 0x00003f00;
+ _wrmsr(USB_MSR_REG(USB_EHCI), hi, lo);
+ break;
+ default:
+ break;
+ }
+}
+
+u32 pci_ehci_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_EHCI_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ if (hi & PCI_COMMAND_MASTER)
+ conf_data |= PCI_COMMAND_MASTER;
+ if (hi & PCI_COMMAND_MEMORY)
+ conf_data |= PCI_COMMAND_MEMORY;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_EHCI_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_EHCI_FLAG) {
+ conf_data = CS5536_EHCI_RANGE |
+ PCI_BASE_ADDRESS_SPACE_MEMORY;
+ lo &= ~SOFT_BAR_EHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = lo & 0xfffff000;
+ }
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_EHCI_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data =
+ CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
+ break;
+ case PCI_EHCI_LEGSMIEN_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = (hi & 0x003f0000) >> 16;
+ break;
+ case PCI_EHCI_LEGSMISTS_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = (hi & 0x3f000000) >> 24;
+ break;
+ case PCI_EHCI_FLADJ_REG:
+ _rdmsr(USB_MSR_REG(USB_EHCI), &hi, &lo);
+ conf_data = hi & 0x00003f00;
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
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 @@
+/*
+ * the IDE Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc.
+ * Author : jlliu, liujl@lemote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+void pci_ide_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ lo |= (0x03 << 4);
+ else
+ lo &= ~(0x03 << 4);
+ _wrmsr(GLIU_MSR_REG(GLIU_PAE), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ value &= 0x0000ff00;
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0xffffff00;
+ hi |= (value >> 8);
+ _wrmsr(SB_MSR_REG(SB_CTRL), hi, lo);
+ break;
+ case PCI_BAR4_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_IDE_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if (value & 0x01) {
+ lo = (value & 0xfffffff0) | 0x1;
+ _wrmsr(IDE_MSR_REG(IDE_IO_BAR), hi, lo);
+
+ value &= 0xfffffffc;
+ hi = 0x60000000 | ((value & 0x000ff000) >> 12);
+ lo = 0x000ffff0 | ((value & 0x00000fff) << 20);
+ _wrmsr(GLIU_MSR_REG(GLIU_IOD_BM2), hi, lo);
+ }
+ break;
+ case PCI_IDE_CFG_REG:
+ if (value == CS5536_IDE_FLASH_SIGNATURE) {
+ _rdmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), &hi, &lo);
+ lo |= 0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_BALL_OPTS), hi, lo);
+ } else
+ _wrmsr(IDE_MSR_REG(IDE_CFG), hi, lo);
+ break;
+ case PCI_IDE_DTC_REG:
+ _wrmsr(IDE_MSR_REG(IDE_DTC), hi, lo);
+ break;
+ case PCI_IDE_CAST_REG:
+ _wrmsr(IDE_MSR_REG(IDE_CAST), hi, lo);
+ break;
+ case PCI_IDE_ETC_REG:
+ _wrmsr(IDE_MSR_REG(IDE_ETC), hi, lo);
+ break;
+ case PCI_IDE_PM_REG:
+ _wrmsr(IDE_MSR_REG(IDE_INTERNAL_PM), hi, lo);
+ break;
+ default:
+ break;
+ }
+}
+
+u32 pci_ide_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_IDE_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
+ if (lo & 0xfffffff0)
+ conf_data |= PCI_COMMAND_IO;
+ _rdmsr(GLIU_MSR_REG(GLIU_PAE), &hi, &lo);
+ if ((lo & 0x30) == 0x30)
+ conf_data |= PCI_COMMAND_MASTER;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(IDE_MSR_REG(IDE_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_IDE_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0x000000f8;
+ conf_data = CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE, hi);
+ break;
+ case PCI_BAR4_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_IDE_FLAG) {
+ conf_data = CS5536_IDE_RANGE |
+ PCI_BASE_ADDRESS_SPACE_IO;
+ lo &= ~SOFT_BAR_IDE_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(IDE_MSR_REG(IDE_IO_BAR), &hi, &lo);
+ conf_data = lo & 0xfffffff0;
+ conf_data |= 0x01;
+ conf_data &= ~0x02;
+ }
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_IDE_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data =
+ CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_IDE_INTR);
+ break;
+ case PCI_IDE_CFG_REG:
+ _rdmsr(IDE_MSR_REG(IDE_CFG), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_IDE_DTC_REG:
+ _rdmsr(IDE_MSR_REG(IDE_DTC), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_IDE_CAST_REG:
+ _rdmsr(IDE_MSR_REG(IDE_CAST), &hi, &lo);
+ conf_data = lo;
+ break;
+ case PCI_IDE_ETC_REG:
+ _rdmsr(IDE_MSR_REG(IDE_ETC), &hi, &lo);
+ conf_data = lo;
+ case PCI_IDE_PM_REG:
+ _rdmsr(IDE_MSR_REG(IDE_INTERNAL_PM), &hi, &lo);
+ conf_data = lo;
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
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 @@
+/*
+ * the ISA Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc.
+ * Author : jlliu, liujl@lemote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+/* common variables for PCI_ISA_READ/WRITE_BAR */
+static const u32 divil_msr_reg[6] = {
+ DIVIL_MSR_REG(DIVIL_LBAR_SMB), DIVIL_MSR_REG(DIVIL_LBAR_GPIO),
+ DIVIL_MSR_REG(DIVIL_LBAR_MFGPT), DIVIL_MSR_REG(DIVIL_LBAR_IRQ),
+ DIVIL_MSR_REG(DIVIL_LBAR_PMS), DIVIL_MSR_REG(DIVIL_LBAR_ACPI),
+};
+
+static const u32 soft_bar_flag[6] = {
+ SOFT_BAR_SMB_FLAG, SOFT_BAR_GPIO_FLAG, SOFT_BAR_MFGPT_FLAG,
+ SOFT_BAR_IRQ_FLAG, SOFT_BAR_PMS_FLAG, SOFT_BAR_ACPI_FLAG,
+};
+
+static const u32 sb_msr_reg[6] = {
+ SB_MSR_REG(SB_R0), SB_MSR_REG(SB_R1), SB_MSR_REG(SB_R2),
+ SB_MSR_REG(SB_R3), SB_MSR_REG(SB_R4), SB_MSR_REG(SB_R5),
+};
+
+static const u32 bar_space_range[6] = {
+ CS5536_SMB_RANGE, CS5536_GPIO_RANGE, CS5536_MFGPT_RANGE,
+ CS5536_IRQ_RANGE, CS5536_PMS_RANGE, CS5536_ACPI_RANGE,
+};
+
+static const int bar_space_len[6] = {
+ CS5536_SMB_LENGTH, CS5536_GPIO_LENGTH, CS5536_MFGPT_LENGTH,
+ CS5536_IRQ_LENGTH, CS5536_PMS_LENGTH, CS5536_ACPI_LENGTH,
+};
+
+/*
+ * enable the divil module bar space.
+ *
+ * For all the DIVIL module LBAR, you should control the DIVIL LBAR reg
+ * and the RCONFx(0~5) reg to use the modules.
+ */
+static void divil_lbar_enable(void)
+{
+ u32 hi, lo;
+ int offset;
+
+ /*
+ * The DIVIL IRQ is not used yet. and make the RCONF0 reserved.
+ */
+
+ for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) {
+ _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
+ hi |= 0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo);
+ }
+}
+
+/*
+ * disable the divil module bar space.
+ */
+static void divil_lbar_disable(void)
+{
+ u32 hi, lo;
+ int offset;
+
+ for (offset = DIVIL_LBAR_SMB; offset <= DIVIL_LBAR_PMS; offset++) {
+ _rdmsr(DIVIL_MSR_REG(offset), &hi, &lo);
+ hi &= ~0x01;
+ _wrmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), hi, lo);
+ }
+}
+
+/*
+ * BAR write: write value to the n BAR
+ */
+
+void pci_isa_write_bar(int n, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= soft_bar_flag[n];
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if (value & 0x01) {
+ /* NATIVE reg */
+ hi = 0x0000f001;
+ lo &= bar_space_range[n];
+ _wrmsr(divil_msr_reg[n], hi, lo);
+
+ /* RCONFx is 4bytes in units for I/O space */
+ hi = ((value & 0x000ffffc) << 12) |
+ ((bar_space_len[n] - 4) << 12) | 0x01;
+ lo = ((value & 0x000ffffc) << 12) | 0x01;
+ _wrmsr(sb_msr_reg[n], hi, lo);
+ }
+}
+
+/*
+ * BAR read: read the n BAR
+ */
+
+u32 pci_isa_read_bar(int n)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & soft_bar_flag[n]) {
+ conf_data = bar_space_range[n] | PCI_BASE_ADDRESS_SPACE_IO;
+ lo &= ~soft_bar_flag[n];
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(divil_msr_reg[n], &hi, &lo);
+ conf_data = lo & bar_space_range[n];
+ conf_data |= 0x01;
+ conf_data &= ~0x02;
+ }
+ return conf_data;
+}
+
+/*
+ * isa_write: ISA write transfer
+ *
+ * We assume that this is not a bus master transfer.
+ */
+void pci_isa_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+ u32 temp;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ if (value & PCI_COMMAND_IO)
+ divil_lbar_enable();
+ else
+ divil_lbar_disable();
+ break;
+ case PCI_STATUS:
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ temp = lo & 0x0000ffff;
+ if ((value & PCI_STATUS_SIG_TARGET_ABORT) &&
+ (lo & SB_TAS_ERR_EN))
+ temp |= SB_TAS_ERR_FLAG;
+
+ if ((value & PCI_STATUS_REC_TARGET_ABORT) &&
+ (lo & SB_TAR_ERR_EN))
+ temp |= SB_TAR_ERR_FLAG;
+
+ if ((value & PCI_STATUS_REC_MASTER_ABORT)
+ && (lo & SB_MAR_ERR_EN))
+ temp |= SB_MAR_ERR_FLAG;
+
+ if ((value & PCI_STATUS_DETECTED_PARITY)
+ && (lo & SB_PARE_ERR_EN))
+ temp |= SB_PARE_ERR_FLAG;
+
+ lo = temp;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ value &= 0x0000ff00;
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0xffffff00;
+ hi |= (value >> 8);
+ _wrmsr(SB_MSR_REG(SB_CTRL), hi, lo);
+ break;
+ case PCI_BAR0_REG:
+ pci_isa_write_bar(0, value);
+ break;
+ case PCI_BAR1_REG:
+ pci_isa_write_bar(1, value);
+ break;
+ case PCI_BAR2_REG:
+ pci_isa_write_bar(2, value);
+ break;
+ case PCI_BAR3_REG:
+ pci_isa_write_bar(3, value);
+ break;
+ case PCI_BAR4_REG:
+ pci_isa_write_bar(4, value);
+ break;
+ case PCI_BAR5_REG:
+ pci_isa_write_bar(5, value);
+ break;
+ case PCI_UART1_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), &hi, &lo);
+ /* disable uart1 interrupt in PIC */
+ lo &= ~(0xf << 24);
+ if (value) /* enable uart1 interrupt in PIC */
+ lo |= (CS5536_UART1_INTR << 24);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), hi, lo);
+ break;
+ case PCI_UART2_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), &hi, &lo);
+ /* disable uart2 interrupt in PIC */
+ lo &= ~(0xf << 28);
+ if (value) /* enable uart2 interrupt in PIC */
+ lo |= (CS5536_UART2_INTR << 28);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_HIGH), hi, lo);
+ break;
+ case PCI_ISA_FIXUP_REG:
+ if (value) {
+ /* enable the TARGET ABORT/MASTER ABORT etc. */
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ lo |= 0x00000063;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+
+ default:
+ /* ALL OTHER PCI CONFIG SPACE HEADER IS NOT IMPLEMENTED. */
+ break;
+ }
+}
+
+/*
+ * isa_read: ISA read transfers
+ *
+ * We assume that this is not a bus master transfer.
+ */
+u32 pci_isa_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ISA_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ /* we just check the first LBAR for the IO enable bit, */
+ /* maybe we should changed later. */
+ _rdmsr(DIVIL_MSR_REG(DIVIL_LBAR_SMB), &hi, &lo);
+ if (hi & 0x01)
+ conf_data |= PCI_COMMAND_IO;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ conf_data |= PCI_STATUS_FAST_BACK;
+
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_TAS_ERR_FLAG)
+ conf_data |= PCI_STATUS_SIG_TARGET_ABORT;
+ if (lo & SB_TAR_ERR_FLAG)
+ conf_data |= PCI_STATUS_REC_TARGET_ABORT;
+ if (lo & SB_MAR_ERR_FLAG)
+ conf_data |= PCI_STATUS_REC_MASTER_ABORT;
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_DETECTED_PARITY;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(GLCP_MSR_REG(GLCP_CHIP_REV_ID), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_ISA_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ _rdmsr(SB_MSR_REG(SB_CTRL), &hi, &lo);
+ hi &= 0x000000f8;
+ conf_data = CFG_PCI_CACHE_LINE_SIZE(PCI_BRIDGE_HEADER_TYPE, hi);
+ break;
+ /*
+ * we only use the LBAR of DIVIL, no RCONF used.
+ * all of them are IO space.
+ */
+ case PCI_BAR0_REG:
+ return pci_isa_read_bar(0);
+ break;
+ case PCI_BAR1_REG:
+ return pci_isa_read_bar(1);
+ break;
+ case PCI_BAR2_REG:
+ return pci_isa_read_bar(2);
+ break;
+ case PCI_BAR3_REG:
+ break;
+ case PCI_BAR4_REG:
+ return pci_isa_read_bar(4);
+ break;
+ case PCI_BAR5_REG:
+ return pci_isa_read_bar(5);
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_ISA_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ /* no interrupt used here */
+ conf_data = CFG_PCI_INTERRUPT_LINE(0x00, 0x00);
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
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 @@
+/*
+ * the OHCI Virtual Support Module of AMD CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc.
+ * Author : jlliu, liujl@lemote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <cs5536/cs5536.h>
+#include <cs5536/cs5536_pci.h>
+
+void pci_ohci_write_reg(int reg, u32 value)
+{
+ u32 hi = 0, lo = value;
+
+ switch (reg) {
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
+ if (value & PCI_COMMAND_MASTER)
+ hi |= PCI_COMMAND_MASTER;
+ else
+ hi &= ~PCI_COMMAND_MASTER;
+
+ if (value & PCI_COMMAND_MEMORY)
+ hi |= PCI_COMMAND_MEMORY;
+ else
+ hi &= ~PCI_COMMAND_MEMORY;
+ _wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
+ break;
+ case PCI_STATUS:
+ if (value & PCI_STATUS_PARITY) {
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG) {
+ lo = (lo & 0x0000ffff) | SB_PARE_ERR_FLAG;
+ _wrmsr(SB_MSR_REG(SB_ERROR), hi, lo);
+ }
+ }
+ break;
+ case PCI_BAR0_REG:
+ if (value == PCI_BAR_RANGE_MASK) {
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ lo |= SOFT_BAR_OHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else if ((value & 0x01) == 0x00) {
+ _wrmsr(USB_MSR_REG(USB_OHCI), hi, lo);
+
+ value &= 0xfffffff0;
+ hi = 0x40000000 | ((value & 0xff000000) >> 24);
+ lo = 0x000fffff | ((value & 0x00fff000) << 8);
+ _wrmsr(GLIU_MSR_REG(GLIU_P2D_BM3), hi, lo);
+ }
+ break;
+ case PCI_OHCI_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ lo &= ~(0xf << PIC_YSEL_LOW_USB_SHIFT);
+ if (value) /* enable all the usb interrupt in PIC */
+ lo |= (CS5536_USB_INTR << PIC_YSEL_LOW_USB_SHIFT);
+ _wrmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), hi, lo);
+ break;
+ default:
+ break;
+ }
+}
+
+u32 pci_ohci_read_reg(int reg)
+{
+ u32 conf_data = 0;
+ u32 hi, lo;
+
+ switch (reg) {
+ case PCI_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_OHCI_DEVICE_ID, CS5536_VENDOR_ID);
+ break;
+ case PCI_COMMAND:
+ _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
+ if (hi & PCI_COMMAND_MASTER)
+ conf_data |= PCI_COMMAND_MASTER;
+ if (hi & PCI_COMMAND_MEMORY)
+ conf_data |= PCI_COMMAND_MEMORY;
+ break;
+ case PCI_STATUS:
+ conf_data |= PCI_STATUS_66MHZ;
+ conf_data |= PCI_STATUS_FAST_BACK;
+ _rdmsr(SB_MSR_REG(SB_ERROR), &hi, &lo);
+ if (lo & SB_PARE_ERR_FLAG)
+ conf_data |= PCI_STATUS_PARITY;
+ conf_data |= PCI_STATUS_DEVSEL_MEDIUM;
+ break;
+ case PCI_CLASS_REVISION:
+ _rdmsr(USB_MSR_REG(USB_CAP), &hi, &lo);
+ conf_data = lo & 0x000000ff;
+ conf_data |= (CS5536_OHCI_CLASS_CODE << 8);
+ break;
+ case PCI_CACHE_LINE_SIZE:
+ conf_data =
+ CFG_PCI_CACHE_LINE_SIZE(PCI_NORMAL_HEADER_TYPE,
+ PCI_NORMAL_LATENCY_TIMER);
+ break;
+ case PCI_BAR0_REG:
+ _rdmsr(GLCP_MSR_REG(GLCP_SOFT_COM), &hi, &lo);
+ if (lo & SOFT_BAR_OHCI_FLAG) {
+ conf_data = CS5536_OHCI_RANGE |
+ PCI_BASE_ADDRESS_SPACE_MEMORY;
+ lo &= ~SOFT_BAR_OHCI_FLAG;
+ _wrmsr(GLCP_MSR_REG(GLCP_SOFT_COM), hi, lo);
+ } else {
+ _rdmsr(USB_MSR_REG(USB_OHCI), &hi, &lo);
+ conf_data = lo & 0xffffff00;
+ conf_data &= ~0x0000000f; /* 32bit mem */
+ }
+ break;
+ case PCI_CARDBUS_CIS:
+ conf_data = PCI_CARDBUS_CIS_POINTER;
+ break;
+ case PCI_SUBSYSTEM_VENDOR_ID:
+ conf_data =
+ CFG_PCI_VENDOR_ID(CS5536_OHCI_SUB_ID, CS5536_SUB_VENDOR_ID);
+ break;
+ case PCI_ROM_ADDRESS:
+ conf_data = PCI_EXPANSION_ROM_BAR;
+ break;
+ case PCI_CAPABILITY_LIST:
+ conf_data = PCI_CAPLIST_USB_POINTER;
+ break;
+ case PCI_INTERRUPT_LINE:
+ conf_data =
+ CFG_PCI_INTERRUPT_LINE(PCI_DEFAULT_PIN, CS5536_USB_INTR);
+ break;
+ case PCI_OHCI_INT_REG:
+ _rdmsr(DIVIL_MSR_REG(PIC_YSEL_LOW), &hi, &lo);
+ if ((lo & 0x00000f00) == CS5536_USB_INTR)
+ conf_data = 1;
+ break;
+ default:
+ break;
+ }
+
+ return conf_data;
+}
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 @@
+/*
+ * read/write operation to the PCI config space of CS5536
+ *
+ * Copyright (C) 2007 Lemote, Inc.
+ * Author : jlliu, liujl@lemote.com
+ *
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * the Virtual Support Module(VSM) for virtulizing the PCI
+ * configure space are defined in cs5536_modulename.c respectively,
+ *
+ * after this virtulizing, user can access the PCI configure space
+ * directly as a normal multi-function PCI device which follows
+ * the PCI-2.2 spec.
+ */
+
+#include <linux/types.h>
+#include <cs5536/cs5536_vsm.h>
+
+enum {
+ CS5536_FUNC_START = -1,
+ CS5536_ISA_FUNC,
+ reserved_func,
+ CS5536_IDE_FUNC,
+ CS5536_ACC_FUNC,
+ CS5536_OHCI_FUNC,
+ CS5536_EHCI_FUNC,
+ CS5536_FUNC_END,
+};
+
+static const cs5536_pci_vsm_write vsm_conf_write[] = {
+ [CS5536_ISA_FUNC] pci_isa_write_reg,
+ [reserved_func] NULL,
+ [CS5536_IDE_FUNC] pci_ide_write_reg,
+ [CS5536_ACC_FUNC] pci_acc_write_reg,
+ [CS5536_OHCI_FUNC] pci_ohci_write_reg,
+ [CS5536_EHCI_FUNC] pci_ehci_write_reg,
+};
+
+static const cs5536_pci_vsm_read vsm_conf_read[] = {
+ [CS5536_ISA_FUNC] pci_isa_read_reg,
+ [reserved_func] NULL,
+ [CS5536_IDE_FUNC] pci_ide_read_reg,
+ [CS5536_ACC_FUNC] pci_acc_read_reg,
+ [CS5536_OHCI_FUNC] pci_ohci_read_reg,
+ [CS5536_EHCI_FUNC] pci_ehci_read_reg,
+};
+
+/*
+ * write to PCI config space and transfer it to MSR write.
+ */
+void cs5536_pci_conf_write4(int function, int reg, u32 value)
+{
+ if ((function <= CS5536_FUNC_START) || (function >= CS5536_FUNC_END))
+ return;
+ if ((reg < 0) || (reg > 0x100) || ((reg & 0x03) != 0))
+ return;
+
+ if (vsm_conf_write[function] != NULL)
+ vsm_conf_write[function](reg, value);
+}
+
+/*
+ * read PCI config space and transfer it to MSR access.
+ */
+u32 cs5536_pci_conf_read4(int function, int reg)
+{
+ u32 data = 0;
+
+ if ((function <= CS5536_FUNC_START) || (function >= CS5536_FUNC_END))
+ return 0;
+ if ((reg < 0) || ((reg & 0x03) != 0))
+ return 0;
+ if (reg > 0x100)
+ return 0xffffffff;
+
+ if (vsm_conf_read[function] != NULL)
+ data = vsm_conf_read[function](reg);
+
+ return data;
+}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-01 12:01:52 +0300