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Diffstat (limited to 'arch/mips/include/asm/pci/bridge.h')
-rw-r--r--arch/mips/include/asm/pci/bridge.h206
1 files changed, 90 insertions, 116 deletions
diff --git a/arch/mips/include/asm/pci/bridge.h b/arch/mips/include/asm/pci/bridge.h
index 3206245d1ed6..23574c27eb40 100644
--- a/arch/mips/include/asm/pci/bridge.h
+++ b/arch/mips/include/asm/pci/bridge.h
@@ -45,18 +45,21 @@
#ifndef __ASSEMBLY__
-/*
- * All accesses to bridge hardware registers must be done
- * using 32-bit loads and stores.
- */
-typedef u32 bridgereg_t;
+#define ATE_V 0x01
+#define ATE_CO 0x02
+#define ATE_PREC 0x04
+#define ATE_PREF 0x08
+#define ATE_BAR 0x10
+
+#define ATE_PFNSHIFT 12
+#define ATE_TIDSHIFT 8
+#define ATE_RMFSHIFT 48
-typedef u64 bridge_ate_t;
+#define mkate(xaddr, xid, attr) (((xaddr) & 0x0000fffffffff000ULL) | \
+ ((xid)<<ATE_TIDSHIFT) | \
+ (attr))
-/* pointers to bridge ATEs
- * are always "pointer to volatile"
- */
-typedef volatile bridge_ate_t *bridge_ate_p;
+#define BRIDGE_INTERNAL_ATES 128
/*
* It is generally preferred that hardware registers on the bridge
@@ -65,7 +68,7 @@ typedef volatile bridge_ate_t *bridge_ate_p;
* Generated from Bridge spec dated 04oct95
*/
-typedef volatile struct bridge_s {
+struct bridge_regs {
/* Local Registers 0x000000-0x00FFFF */
/* standard widget configuration 0x000000-0x000057 */
@@ -86,105 +89,105 @@ typedef volatile struct bridge_s {
#define b_wid_tflush b_widget.w_tflush
/* bridge-specific widget configuration 0x000058-0x00007F */
- bridgereg_t _pad_000058;
- bridgereg_t b_wid_aux_err; /* 0x00005C */
- bridgereg_t _pad_000060;
- bridgereg_t b_wid_resp_upper; /* 0x000064 */
- bridgereg_t _pad_000068;
- bridgereg_t b_wid_resp_lower; /* 0x00006C */
- bridgereg_t _pad_000070;
- bridgereg_t b_wid_tst_pin_ctrl; /* 0x000074 */
- bridgereg_t _pad_000078[2];
+ u32 _pad_000058;
+ u32 b_wid_aux_err; /* 0x00005C */
+ u32 _pad_000060;
+ u32 b_wid_resp_upper; /* 0x000064 */
+ u32 _pad_000068;
+ u32 b_wid_resp_lower; /* 0x00006C */
+ u32 _pad_000070;
+ u32 b_wid_tst_pin_ctrl; /* 0x000074 */
+ u32 _pad_000078[2];
/* PMU & Map 0x000080-0x00008F */
- bridgereg_t _pad_000080;
- bridgereg_t b_dir_map; /* 0x000084 */
- bridgereg_t _pad_000088[2];
+ u32 _pad_000080;
+ u32 b_dir_map; /* 0x000084 */
+ u32 _pad_000088[2];
/* SSRAM 0x000090-0x00009F */
- bridgereg_t _pad_000090;
- bridgereg_t b_ram_perr; /* 0x000094 */
- bridgereg_t _pad_000098[2];
+ u32 _pad_000090;
+ u32 b_ram_perr; /* 0x000094 */
+ u32 _pad_000098[2];
/* Arbitration 0x0000A0-0x0000AF */
- bridgereg_t _pad_0000A0;
- bridgereg_t b_arb; /* 0x0000A4 */
- bridgereg_t _pad_0000A8[2];
+ u32 _pad_0000A0;
+ u32 b_arb; /* 0x0000A4 */
+ u32 _pad_0000A8[2];
/* Number In A Can 0x0000B0-0x0000BF */
- bridgereg_t _pad_0000B0;
- bridgereg_t b_nic; /* 0x0000B4 */
- bridgereg_t _pad_0000B8[2];
+ u32 _pad_0000B0;
+ u32 b_nic; /* 0x0000B4 */
+ u32 _pad_0000B8[2];
/* PCI/GIO 0x0000C0-0x0000FF */
- bridgereg_t _pad_0000C0;
- bridgereg_t b_bus_timeout; /* 0x0000C4 */
+ u32 _pad_0000C0;
+ u32 b_bus_timeout; /* 0x0000C4 */
#define b_pci_bus_timeout b_bus_timeout
- bridgereg_t _pad_0000C8;
- bridgereg_t b_pci_cfg; /* 0x0000CC */
- bridgereg_t _pad_0000D0;
- bridgereg_t b_pci_err_upper; /* 0x0000D4 */
- bridgereg_t _pad_0000D8;
- bridgereg_t b_pci_err_lower; /* 0x0000DC */
- bridgereg_t _pad_0000E0[8];
+ u32 _pad_0000C8;
+ u32 b_pci_cfg; /* 0x0000CC */
+ u32 _pad_0000D0;
+ u32 b_pci_err_upper; /* 0x0000D4 */
+ u32 _pad_0000D8;
+ u32 b_pci_err_lower; /* 0x0000DC */
+ u32 _pad_0000E0[8];
#define b_gio_err_lower b_pci_err_lower
#define b_gio_err_upper b_pci_err_upper
/* Interrupt 0x000100-0x0001FF */
- bridgereg_t _pad_000100;
- bridgereg_t b_int_status; /* 0x000104 */
- bridgereg_t _pad_000108;
- bridgereg_t b_int_enable; /* 0x00010C */
- bridgereg_t _pad_000110;
- bridgereg_t b_int_rst_stat; /* 0x000114 */
- bridgereg_t _pad_000118;
- bridgereg_t b_int_mode; /* 0x00011C */
- bridgereg_t _pad_000120;
- bridgereg_t b_int_device; /* 0x000124 */
- bridgereg_t _pad_000128;
- bridgereg_t b_int_host_err; /* 0x00012C */
+ u32 _pad_000100;
+ u32 b_int_status; /* 0x000104 */
+ u32 _pad_000108;
+ u32 b_int_enable; /* 0x00010C */
+ u32 _pad_000110;
+ u32 b_int_rst_stat; /* 0x000114 */
+ u32 _pad_000118;
+ u32 b_int_mode; /* 0x00011C */
+ u32 _pad_000120;
+ u32 b_int_device; /* 0x000124 */
+ u32 _pad_000128;
+ u32 b_int_host_err; /* 0x00012C */
struct {
- bridgereg_t __pad; /* 0x0001{30,,,68} */
- bridgereg_t addr; /* 0x0001{34,,,6C} */
+ u32 __pad; /* 0x0001{30,,,68} */
+ u32 addr; /* 0x0001{34,,,6C} */
} b_int_addr[8]; /* 0x000130 */
- bridgereg_t _pad_000170[36];
+ u32 _pad_000170[36];
/* Device 0x000200-0x0003FF */
struct {
- bridgereg_t __pad; /* 0x0002{00,,,38} */
- bridgereg_t reg; /* 0x0002{04,,,3C} */
+ u32 __pad; /* 0x0002{00,,,38} */
+ u32 reg; /* 0x0002{04,,,3C} */
} b_device[8]; /* 0x000200 */
struct {
- bridgereg_t __pad; /* 0x0002{40,,,78} */
- bridgereg_t reg; /* 0x0002{44,,,7C} */
+ u32 __pad; /* 0x0002{40,,,78} */
+ u32 reg; /* 0x0002{44,,,7C} */
} b_wr_req_buf[8]; /* 0x000240 */
struct {
- bridgereg_t __pad; /* 0x0002{80,,,88} */
- bridgereg_t reg; /* 0x0002{84,,,8C} */
+ u32 __pad; /* 0x0002{80,,,88} */
+ u32 reg; /* 0x0002{84,,,8C} */
} b_rrb_map[2]; /* 0x000280 */
#define b_even_resp b_rrb_map[0].reg /* 0x000284 */
#define b_odd_resp b_rrb_map[1].reg /* 0x00028C */
- bridgereg_t _pad_000290;
- bridgereg_t b_resp_status; /* 0x000294 */
- bridgereg_t _pad_000298;
- bridgereg_t b_resp_clear; /* 0x00029C */
+ u32 _pad_000290;
+ u32 b_resp_status; /* 0x000294 */
+ u32 _pad_000298;
+ u32 b_resp_clear; /* 0x00029C */
- bridgereg_t _pad_0002A0[24];
+ u32 _pad_0002A0[24];
char _pad_000300[0x10000 - 0x000300];
/* Internal Address Translation Entry RAM 0x010000-0x0103FF */
union {
- bridge_ate_t wr; /* write-only */
+ u64 wr; /* write-only */
struct {
- bridgereg_t _p_pad;
- bridgereg_t rd; /* read-only */
+ u32 _p_pad;
+ u32 rd; /* read-only */
} hi;
} b_int_ate_ram[128];
@@ -192,8 +195,8 @@ typedef volatile struct bridge_s {
/* Internal Address Translation Entry RAM LOW 0x011000-0x0113FF */
struct {
- bridgereg_t _p_pad;
- bridgereg_t rd; /* read-only */
+ u32 _p_pad;
+ u32 rd; /* read-only */
} b_int_ate_ram_lo[128];
char _pad_011400[0x20000 - 0x011400];
@@ -212,7 +215,7 @@ typedef volatile struct bridge_s {
} f[8];
} b_type0_cfg_dev[8]; /* 0x020000 */
- /* PCI Type 1 Configuration Space 0x028000-0x028FFF */
+ /* PCI Type 1 Configuration Space 0x028000-0x028FFF */
union { /* make all access sizes available. */
u8 c[0x1000 / 1];
u16 s[0x1000 / 2];
@@ -233,7 +236,7 @@ typedef volatile struct bridge_s {
u8 _pad_030007[0x04fff8]; /* 0x030008-0x07FFFF */
/* External Address Translation Entry RAM 0x080000-0x0FFFFF */
- bridge_ate_t b_ext_ate_ram[0x10000];
+ u64 b_ext_ate_ram[0x10000];
/* Reserved 0x100000-0x1FFFFF */
char _pad_100000[0x200000-0x100000];
@@ -259,13 +262,13 @@ typedef volatile struct bridge_s {
u32 l[0x400000 / 4]; /* read-only */
u64 d[0x400000 / 8]; /* read-only */
} b_external_flash; /* 0xC00000 */
-} bridge_t;
+};
/*
* Field formats for Error Command Word and Auxiliary Error Command Word
* of bridge.
*/
-typedef struct bridge_err_cmdword_s {
+struct bridge_err_cmdword {
union {
u32 cmd_word;
struct {
@@ -282,7 +285,7 @@ typedef struct bridge_err_cmdword_s {
rsvd:8;
} berr_st;
} berr_un;
-} bridge_err_cmdword_t;
+};
#define berr_field berr_un.berr_st
#endif /* !__ASSEMBLY__ */
@@ -290,7 +293,7 @@ typedef struct bridge_err_cmdword_s {
/*
* The values of these macros can and should be crosschecked
* regularly against the offsets of the like-named fields
- * within the "bridge_t" structure above.
+ * within the bridge_regs structure above.
*/
/* Byte offset macros for Bridge internal registers */
@@ -797,49 +800,14 @@ typedef struct bridge_err_cmdword_s {
#define PCI64_ATTR_RMF_MASK 0x00ff000000000000
#define PCI64_ATTR_RMF_SHFT 48
-#ifndef __ASSEMBLY__
-/* Address translation entry for mapped pci32 accesses */
-typedef union ate_u {
- u64 ent;
- struct ate_s {
- u64 rmf:16;
- u64 addr:36;
- u64 targ:4;
- u64 reserved:3;
- u64 barrier:1;
- u64 prefetch:1;
- u64 precise:1;
- u64 coherent:1;
- u64 valid:1;
- } field;
-} ate_t;
-#endif /* !__ASSEMBLY__ */
-
-#define ATE_V 0x01
-#define ATE_CO 0x02
-#define ATE_PREC 0x04
-#define ATE_PREF 0x08
-#define ATE_BAR 0x10
-
-#define ATE_PFNSHIFT 12
-#define ATE_TIDSHIFT 8
-#define ATE_RMFSHIFT 48
-
-#define mkate(xaddr, xid, attr) ((xaddr) & 0x0000fffffffff000ULL) | \
- ((xid)<<ATE_TIDSHIFT) | \
- (attr)
-
-#define BRIDGE_INTERNAL_ATES 128
-
struct bridge_controller {
struct pci_controller pc;
struct resource mem;
struct resource io;
struct resource busn;
- bridge_t *base;
+ struct bridge_regs *base;
nasid_t nasid;
unsigned int widget_id;
- unsigned int irq_cpu;
u64 baddr;
unsigned int pci_int[8];
};
@@ -847,8 +815,14 @@ struct bridge_controller {
#define BRIDGE_CONTROLLER(bus) \
((struct bridge_controller *)((bus)->sysdata))
-extern void register_bridge_irq(unsigned int irq);
-extern int request_bridge_irq(struct bridge_controller *bc);
+#define bridge_read(bc, reg) __raw_readl(&bc->base->reg)
+#define bridge_write(bc, reg, val) __raw_writel(val, &bc->base->reg)
+#define bridge_set(bc, reg, val) \
+ __raw_writel(__raw_readl(&bc->base->reg) | (val), &bc->base->reg)
+#define bridge_clr(bc, reg, val) \
+ __raw_writel(__raw_readl(&bc->base->reg) & ~(val), &bc->base->reg)
+
+extern int request_bridge_irq(struct bridge_controller *bc, int pin);
extern struct pci_ops bridge_pci_ops;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.