MIPS: Bonito64: Make Loongson independent from Bonito64 code.

The built-in Loongson 2E/2F northbridge in is bonito64-compatible but not
identical with it.  To avoid influencing the original bonito64 support and
make the loongson support more maintainable, it's better to separate the
Bonito64 code from the Loongson code.

This also prepares the kernel for the coming Loongson 2f machines family
support.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: yanh@lemote.com
Cc: huhb@lemote.com
Cc: Zhang Le <r0bertz@gentoo.org>
Cc: zhangfx@lemote.com,
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 172 insertions, 23 deletions

diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index da70bcf2304e..e6869aa52bc8 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -15,9 +15,6 @@
 #include <linux/io.h>
 #include <linux/init.h>
 
-/* there is an internal bonito64-compatiable northbridge in loongson2e/2f */
-#include <asm/mips-boards/bonito64.h>
-
 /* loongson internal northbridge initialization */
 extern void bonito_irq_init(void);
 
@@ -41,24 +38,181 @@ extern void __init set_irq_trigger_mode(void);
 extern void __init mach_init_irq(void);
 extern void mach_irq_dispatch(unsigned int pending);
 
+#define LOONGSON_REG(x) \
+        (*(volatile u32 *)((char *)CKSEG1ADDR(LOONGSON_REG_BASE) + (x)))
+
+#define LOONGSON_IRQ_BASE       32
+#define LOONGSON2_PERFCNT_IRQ   (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */
+
+#define LOONGSON_FLASH_BASE     0x1c000000
+#define LOONGSON_FLASH_SIZE     0x02000000      /* 32M */
+#define LOONGSON_FLASH_TOP      (LOONGSON_FLASH_BASE+LOONGSON_FLASH_SIZE-1)
+
+#define LOONGSON_LIO0_BASE      0x1e000000
+#define LOONGSON_LIO0_SIZE      0x01C00000      /* 28M */
+#define LOONGSON_LIO0_TOP       (LOONGSON_LIO0_BASE+LOONGSON_LIO0_SIZE-1)
+
+#define LOONGSON_BOOT_BASE      0x1fc00000
+#define LOONGSON_BOOT_SIZE      0x00100000      /* 1M */
+#define LOONGSON_BOOT_TOP       (LOONGSON_BOOT_BASE+LOONGSON_BOOT_SIZE-1)
+#define LOONGSON_REG_BASE       0x1fe00000
+#define LOONGSON_REG_SIZE       0x00100000      /* 256Bytes + 256Bytes + ??? */
+#define LOONGSON_REG_TOP        (LOONGSON_REG_BASE+LOONGSON_REG_SIZE-1)
+
+#define LOONGSON_LIO1_BASE      0x1ff00000
+#define LOONGSON_LIO1_SIZE      0x00100000      /* 1M */
+#define LOONGSON_LIO1_TOP       (LOONGSON_LIO1_BASE+LOONGSON_LIO1_SIZE-1)
+
+#define LOONGSON_PCILO0_BASE    0x10000000
+#define LOONGSON_PCILO1_BASE    0x14000000
+#define LOONGSON_PCILO2_BASE    0x18000000
+#define LOONGSON_PCILO_BASE     LOONGSON_PCILO0_BASE
+#define LOONGSON_PCILO_SIZE     0x0c000000      /* 64M * 3 */
+#define LOONGSON_PCILO_TOP      (LOONGSON_PCILO0_BASE+LOONGSON_PCILO_SIZE-1)
+
+#define LOONGSON_PCICFG_BASE    0x1fe80000
+#define LOONGSON_PCICFG_SIZE    0x00000800      /* 2K */
+#define LOONGSON_PCICFG_TOP     (LOONGSON_PCICFG_BASE+LOONGSON_PCICFG_SIZE-1)
+#define LOONGSON_PCIIO_BASE     0x1fd00000
+#define LOONGSON_PCIIO_SIZE     0x00100000      /* 1M */
+#define LOONGSON_PCIIO_TOP      (LOONGSON_PCIIO_BASE+LOONGSON_PCIIO_SIZE-1)
+
+/* Loongson Register Bases */
+
+#define LOONGSON_PCICONFIGBASE  0x00
+#define LOONGSON_REGBASE        0x100
+
 /* PCI Configuration Registers */
-#define LOONGSON_PCI_ISR4C  BONITO_PCI_REG(0x4c)
+
+#define LOONGSON_PCI_REG(x)     LOONGSON_REG(LOONGSON_PCICONFIGBASE + (x))
+#define LOONGSON_PCIDID         LOONGSON_PCI_REG(0x00)
+#define LOONGSON_PCICMD         LOONGSON_PCI_REG(0x04)
+#define LOONGSON_PCICLASS       LOONGSON_PCI_REG(0x08)
+#define LOONGSON_PCILTIMER      LOONGSON_PCI_REG(0x0c)
+#define LOONGSON_PCIBASE0       LOONGSON_PCI_REG(0x10)
+#define LOONGSON_PCIBASE1       LOONGSON_PCI_REG(0x14)
+#define LOONGSON_PCIBASE2       LOONGSON_PCI_REG(0x18)
+#define LOONGSON_PCIBASE3       LOONGSON_PCI_REG(0x1c)
+#define LOONGSON_PCIBASE4       LOONGSON_PCI_REG(0x20)
+#define LOONGSON_PCIEXPRBASE    LOONGSON_PCI_REG(0x30)
+#define LOONGSON_PCIINT         LOONGSON_PCI_REG(0x3c)
+
+#define LOONGSON_PCI_ISR4C      LOONGSON_PCI_REG(0x4c)
+
+#define LOONGSON_PCICMD_PERR_CLR        0x80000000
+#define LOONGSON_PCICMD_SERR_CLR        0x40000000
+#define LOONGSON_PCICMD_MABORT_CLR      0x20000000
+#define LOONGSON_PCICMD_MTABORT_CLR     0x10000000
+#define LOONGSON_PCICMD_TABORT_CLR      0x08000000
+#define LOONGSON_PCICMD_MPERR_CLR       0x01000000
+#define LOONGSON_PCICMD_PERRRESPEN      0x00000040
+#define LOONGSON_PCICMD_ASTEPEN         0x00000080
+#define LOONGSON_PCICMD_SERREN          0x00000100
+#define LOONGSON_PCILTIMER_BUSLATENCY   0x0000ff00
+#define LOONGSON_PCILTIMER_BUSLATENCY_SHIFT     8
+
+/* Loongson h/w Configuration */
+
+#define LOONGSON_GENCFG_OFFSET          0x4
+#define LOONGSON_GENCFG LOONGSON_REG(LOONGSON_REGBASE + LOONGSON_GENCFG_OFFSET)
+
+#define LOONGSON_GENCFG_DEBUGMODE       0x00000001
+#define LOONGSON_GENCFG_SNOOPEN         0x00000002
+#define LOONGSON_GENCFG_CPUSELFRESET    0x00000004
+
+#define LOONGSON_GENCFG_FORCE_IRQA      0x00000008
+#define LOONGSON_GENCFG_IRQA_ISOUT      0x00000010
+#define LOONGSON_GENCFG_IRQA_FROM_INT1  0x00000020
+#define LOONGSON_GENCFG_BYTESWAP        0x00000040
+
+#define LOONGSON_GENCFG_UNCACHED        0x00000080
+#define LOONGSON_GENCFG_PREFETCHEN      0x00000100
+#define LOONGSON_GENCFG_WBEHINDEN       0x00000200
+#define LOONGSON_GENCFG_CACHEALG        0x00000c00
+#define LOONGSON_GENCFG_CACHEALG_SHIFT  10
+#define LOONGSON_GENCFG_PCIQUEUE        0x00001000
+#define LOONGSON_GENCFG_CACHESTOP       0x00002000
+#define LOONGSON_GENCFG_MSTRBYTESWAP    0x00004000
+#define LOONGSON_GENCFG_BUSERREN        0x00008000
+#define LOONGSON_GENCFG_NORETRYTIMEOUT  0x00010000
+#define LOONGSON_GENCFG_SHORTCOPYTIMEOUT        0x00020000
+
+/* PCI address map control */
+
+#define LOONGSON_PCIMAP                 LOONGSON_REG(LOONGSON_REGBASE + 0x10)
+#define LOONGSON_PCIMEMBASECFG          LOONGSON_REG(LOONGSON_REGBASE + 0x14)
+#define LOONGSON_PCIMAP_CFG             LOONGSON_REG(LOONGSON_REGBASE + 0x18)
+
+/* GPIO Regs - r/w */
+
+#define LOONGSON_GPIODATA               LOONGSON_REG(LOONGSON_REGBASE + 0x1c)
+#define LOONGSON_GPIOIE                 LOONGSON_REG(LOONGSON_REGBASE + 0x20)
+
+/* ICU Configuration Regs - r/w */
+
+#define LOONGSON_INTEDGE                LOONGSON_REG(LOONGSON_REGBASE + 0x24)
+#define LOONGSON_INTSTEER               LOONGSON_REG(LOONGSON_REGBASE + 0x28)
+#define LOONGSON_INTPOL                 LOONGSON_REG(LOONGSON_REGBASE + 0x2c)
+
+/* ICU Enable Regs - IntEn & IntISR are r/o. */
+
+#define LOONGSON_INTENSET               LOONGSON_REG(LOONGSON_REGBASE + 0x30)
+#define LOONGSON_INTENCLR               LOONGSON_REG(LOONGSON_REGBASE + 0x34)
+#define LOONGSON_INTEN                  LOONGSON_REG(LOONGSON_REGBASE + 0x38)
+#define LOONGSON_INTISR                 LOONGSON_REG(LOONGSON_REGBASE + 0x3c)
+
+/* ICU */
+#define LOONGSON_ICU_MBOXES             0x0000000f
+#define LOONGSON_ICU_MBOXES_SHIFT       0
+#define LOONGSON_ICU_DMARDY             0x00000010
+#define LOONGSON_ICU_DMAEMPTY           0x00000020
+#define LOONGSON_ICU_COPYRDY            0x00000040
+#define LOONGSON_ICU_COPYEMPTY          0x00000080
+#define LOONGSON_ICU_COPYERR            0x00000100
+#define LOONGSON_ICU_PCIIRQ             0x00000200
+#define LOONGSON_ICU_MASTERERR          0x00000400
+#define LOONGSON_ICU_SYSTEMERR          0x00000800
+#define LOONGSON_ICU_DRAMPERR           0x00001000
+#define LOONGSON_ICU_RETRYERR           0x00002000
+#define LOONGSON_ICU_GPIOS              0x01ff0000
+#define LOONGSON_ICU_GPIOS_SHIFT                16
+#define LOONGSON_ICU_GPINS              0x7e000000
+#define LOONGSON_ICU_GPINS_SHIFT                25
+#define LOONGSON_ICU_MBOX(N)            (1<<(LOONGSON_ICU_MBOXES_SHIFT+(N)))
+#define LOONGSON_ICU_GPIO(N)            (1<<(LOONGSON_ICU_GPIOS_SHIFT+(N)))
+#define LOONGSON_ICU_GPIN(N)            (1<<(LOONGSON_ICU_GPINS_SHIFT+(N)))
+
+/* PCI prefetch window base & mask */
+
+#define LOONGSON_MEM_WIN_BASE_L         LOONGSON_REG(LOONGSON_REGBASE + 0x40)
+#define LOONGSON_MEM_WIN_BASE_H         LOONGSON_REG(LOONGSON_REGBASE + 0x44)
+#define LOONGSON_MEM_WIN_MASK_L         LOONGSON_REG(LOONGSON_REGBASE + 0x48)
+#define LOONGSON_MEM_WIN_MASK_H         LOONGSON_REG(LOONGSON_REGBASE + 0x4c)
 
 /* PCI_Hit*_Sel_* */
 
-#define LOONGSON_PCI_HIT0_SEL_L     BONITO(BONITO_REGBASE + 0x50)
-#define LOONGSON_PCI_HIT0_SEL_H     BONITO(BONITO_REGBASE + 0x54)
-#define LOONGSON_PCI_HIT1_SEL_L     BONITO(BONITO_REGBASE + 0x58)
-#define LOONGSON_PCI_HIT1_SEL_H     BONITO(BONITO_REGBASE + 0x5c)
-#define LOONGSON_PCI_HIT2_SEL_L     BONITO(BONITO_REGBASE + 0x60)
-#define LOONGSON_PCI_HIT2_SEL_H     BONITO(BONITO_REGBASE + 0x64)
+#define LOONGSON_PCI_HIT0_SEL_L         LOONGSON_REG(LOONGSON_REGBASE + 0x50)
+#define LOONGSON_PCI_HIT0_SEL_H         LOONGSON_REG(LOONGSON_REGBASE + 0x54)
+#define LOONGSON_PCI_HIT1_SEL_L         LOONGSON_REG(LOONGSON_REGBASE + 0x58)
+#define LOONGSON_PCI_HIT1_SEL_H         LOONGSON_REG(LOONGSON_REGBASE + 0x5c)
+#define LOONGSON_PCI_HIT2_SEL_L         LOONGSON_REG(LOONGSON_REGBASE + 0x60)
+#define LOONGSON_PCI_HIT2_SEL_H         LOONGSON_REG(LOONGSON_REGBASE + 0x64)
 
 /* PXArb Config & Status */
 
-#define LOONGSON_PXARB_CFG      BONITO(BONITO_REGBASE + 0x68)
-#define LOONGSON_PXARB_STATUS       BONITO(BONITO_REGBASE + 0x6c)
+#define LOONGSON_PXARB_CFG              LOONGSON_REG(LOONGSON_REGBASE + 0x68)
+#define LOONGSON_PXARB_STATUS           LOONGSON_REG(LOONGSON_REGBASE + 0x6c)
+
+/* pcimap */
 
-/* loongson2-specific perf counter IRQ */
-#define LOONGSON2_PERFCNT_IRQ   (MIPS_CPU_IRQ_BASE + 6)
+#define LOONGSON_PCIMAP_PCIMAP_LO0      0x0000003f
+#define LOONGSON_PCIMAP_PCIMAP_LO0_SHIFT        0
+#define LOONGSON_PCIMAP_PCIMAP_LO1      0x00000fc0
+#define LOONGSON_PCIMAP_PCIMAP_LO1_SHIFT        6
+#define LOONGSON_PCIMAP_PCIMAP_LO2      0x0003f000
+#define LOONGSON_PCIMAP_PCIMAP_LO2_SHIFT        12
+#define LOONGSON_PCIMAP_PCIMAP_2        0x00040000
+#define LOONGSON_PCIMAP_WIN(WIN, ADDR)  \
+        ((((ADDR)>>26) & LOONGSON_PCIMAP_PCIMAP_LO0) << ((WIN)*6))
 
 #endif /* __ASM_MACH_LOONGSON_LOONGSON_H */
diff --git a/arch/mips/include/asm/mach-loongson/machine.h b/arch/mips/include/asm/mach-loongson/machine.h
index 206ea2067916..ea5954c4b221 100644
--- a/arch/mips/include/asm/mach-loongson/machine.h
+++ b/arch/mips/include/asm/mach-loongson/machine.h
@@ -13,7 +13,7 @@
 
 #ifdef CONFIG_LEMOTE_FULOONG2E
 
-#define LOONGSON_UART_BASE (BONITO_PCIIO_BASE + 0x3f8)
+#define LOONGSON_UART_BASE (LOONGSON_PCIIO_BASE + 0x3f8)
 
 #define LOONGSON_MACHTYPE MACH_LEMOTE_FL2E
 
diff --git a/arch/mips/include/asm/mach-loongson/pci.h b/arch/mips/include/asm/mach-loongson/pci.h
index f1663ca81da0..576487c00470 100644
--- a/arch/mips/include/asm/mach-loongson/pci.h
+++ b/arch/mips/include/asm/mach-loongson/pci.h
@@ -22,13 +22,13 @@
 #ifndef __ASM_MACH_LOONGSON_PCI_H_
 #define __ASM_MACH_LOONGSON_PCI_H_
 
-extern struct pci_ops bonito64_pci_ops;
+extern struct pci_ops loongson_pci_ops;
 
 #ifdef CONFIG_LEMOTE_FULOONG2E
 
 /* this pci memory space is mapped by pcimap in pci.c */
-#define LOONGSON_PCI_MEM_START  BONITO_PCILO1_BASE
-#define LOONGSON_PCI_MEM_END    (BONITO_PCILO1_BASE + 0x04000000 * 2)
+#define LOONGSON_PCI_MEM_START  LOONGSON_PCILO1_BASE
+#define LOONGSON_PCI_MEM_END    (LOONGSON_PCILO1_BASE + 0x04000000 * 2)
 /* this is an offset from mips_io_port_base */
 #define LOONGSON_PCI_IO_START   0x00004000UL
 
diff --git a/arch/mips/include/asm/mips-boards/bonito64.h b/arch/mips/include/asm/mips-boards/bonito64.h
index a576ce044c3c..d14e2adc4be5 100644
--- a/arch/mips/include/asm/mips-boards/bonito64.h
+++ b/arch/mips/include/asm/mips-boards/bonito64.h
@@ -26,11 +26,6 @@
 /* offsets from base register */
 #define BONITO(x)       (x)
 
-#elif defined(CONFIG_LEMOTE_FULOONG2E)
-
-#define BONITO(x) (*(volatile u32 *)((char *)CKSEG1ADDR(BONITO_REG_BASE) + (x)))
-#define BONITO_IRQ_BASE   32
-
 #else
 
 /*