#ifndef _IXP2000_REGS_H_
#define _IXP2000_REGS_H_
+/*
+ * IXP2000 linux memory map:
+ *
+ * virt phys size
+ * fb000000 db000000 16M PCI CFG1
+ * fc000000 da000000 16M PCI CFG0
+ * fd000000 d8000000 16M PCI I/O
+ * fe[0-7]00000 8M per-platform mappings
+ * fe900000 80000000 1M SRAM #0 (first MB)
+ * fea00000 cb400000 1M SCRATCH ring get/put
+ * feb00000 c8000000 1M MSF
+ * fec00000 df000000 1M PCI CSRs
+ * fed00000 de000000 1M PCI CREG
+ * fee00000 d6000000 1M INTCTL
+ * fef00000 c0000000 1M CAP
+ */
+
/*
- * Static I/O regions. The manual defines each region as being several
- * MB in size, but all the registers are within the first 4K, so there's
- * no purpose in mapping the whole region in.
+ * Static I/O regions.
+ *
+ * Most of the registers are clumped in 4K regions spread throughout
+ * the 0xc0000000 -> 0xc0100000 address range, but we just map in
+ * the whole range using a single 1 MB section instead of small
+ * 4K pages. This has two advantages for us:
+ *
+ * 1) We use only one TLB entry for large number of on-chip I/O devices.
+ *
+ * 2) We can easily set the Section attributes to XCB=101 on the IXP2400
+ * as required per erratum #66. We accomplish this by using a
+ * new MT_IXP2000_DEVICE memory type with the bits set as required.
+ *
+ * CAP stands for CSR Access Proxy.
+ *
+ * If you change the virtual address of this mapping, please propagate
+ * the change to arch/arm/kernel/debug.S, which hardcodes the virtual
+ * address of the UART located in this region.
*/
-#define IXP2000_SLOWPORT_CSR_PHYS_BASE 0xc0080000
-#define IXP2000_SLOWPORT_CSR_VIRT_BASE 0xfefff000
-#define IXP2000_SLOWPORT_CSR_SIZE 0x1000
-#define IXP2000_GLOBAL_REG_PHYS_BASE 0xc0004000
-#define IXP2000_GLOBAL_REG_VIRT_BASE 0xfeffe000
-#define IXP2000_GLOBAL_REG_SIZE 0x1000
+#define IXP2000_CAP_PHYS_BASE 0xc0000000
+#define IXP2000_CAP_VIRT_BASE 0xfef00000
+#define IXP2000_CAP_SIZE 0x00100000
+/*
+ * Addresses for specific on-chip peripherals.
+ */
+#define IXP2000_SLOWPORT_CSR_VIRT_BASE 0xfef80000
+#define IXP2000_GLOBAL_REG_VIRT_BASE 0xfef04000
#define IXP2000_UART_PHYS_BASE 0xc0030000
#define IXP2000_UART_VIRT_BASE 0xfef30000
-#define IXP2000_UART_SIZE 0x1000
-
-#define IXP2000_TIMER_PHYS_BASE 0xc0020000
-#define IXP2000_TIMER_VIRT_BASE 0xfeffc000
-#define IXP2000_TIMER_SIZE 0x1000
-
-#define IXP2000_GPIO_PHYS_BASE 0xc0010000
-#define IXP2000_GPIO_VIRT_BASE 0xfeffb000
-#define IXP2000_GPIO_SIZE 0x1000
+#define IXP2000_TIMER_VIRT_BASE 0xfef20000
+#define IXP2000_UENGINE_CSR_VIRT_BASE 0xfef18000
+#define IXP2000_GPIO_VIRT_BASE 0xfef10000
+/*
+ * Devices outside of the 0xc0000000 -> 0xc0100000 range. The virtual
+ * addresses of the INTCTL and PCI_CSR mappings are hardcoded in
+ * entry-macro.S, so if you ever change these please propagate
+ * the change.
+ */
#define IXP2000_INTCTL_PHYS_BASE 0xd6000000
-#define IXP2000_INTCTL_VIRT_BASE 0xfeffa000
-#define IXP2000_INTCTL_SIZE 0x01000
+#define IXP2000_INTCTL_VIRT_BASE 0xfee00000
+#define IXP2000_INTCTL_SIZE 0x00100000
#define IXP2000_PCI_CREG_PHYS_BASE 0xde000000
-#define IXP2000_PCI_CREG_VIRT_BASE 0xfeff0000
-#define IXP2000_PCI_CREG_SIZE 0x1000
+#define IXP2000_PCI_CREG_VIRT_BASE 0xfed00000
+#define IXP2000_PCI_CREG_SIZE 0x00100000
#define IXP2000_PCI_CSR_PHYS_BASE 0xdf000000
-#define IXP2000_PCI_CSR_VIRT_BASE 0xfefde000
-#define IXP2000_PCI_CSR_SIZE 0x1000
+#define IXP2000_PCI_CSR_VIRT_BASE 0xfec00000
+#define IXP2000_PCI_CSR_SIZE 0x00100000
+
+#define IXP2000_MSF_PHYS_BASE 0xc8000000
+#define IXP2000_MSF_VIRT_BASE 0xfeb00000
+#define IXP2000_MSF_SIZE 0x00100000
+
+#define IXP2000_SCRATCH_RING_PHYS_BASE 0xcb400000
+#define IXP2000_SCRATCH_RING_VIRT_BASE 0xfea00000
+#define IXP2000_SCRATCH_RING_SIZE 0x00100000
+
+#define IXP2000_SRAM0_PHYS_BASE 0x80000000
+#define IXP2000_SRAM0_VIRT_BASE 0xfe900000
+#define IXP2000_SRAM0_SIZE 0x00100000
#define IXP2000_PCI_IO_PHYS_BASE 0xd8000000
#define IXP2000_PCI_IO_VIRT_BASE 0xfd000000
#define IXP2000_PCI_CFG1_VIRT_BASE 0xfb000000
#define IXP2000_PCI_CFG1_SIZE 0x01000000
-
/*
* Timers
*/
#define WDT_ENABLE 0x00000001
#define TIMER_DIVIDER_256 0x00000008
#define TIMER_ENABLE 0x00000080
+#define IRQ_MASK_TIMER1 (1 << 4)
/*
* Interrupt controller registers
#define IXP2000_IRQ_ERR_ENABLE_SET IXP2000_INTCTL_REG(0x2c)
#define IXP2000_FIQ_ERR_ENABLE_CLR IXP2000_INTCTL_REG(0x30)
#define IXP2000_IRQ_ERR_ENABLE_CLR IXP2000_INTCTL_REG(0x34)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_0 IXP2000_INTCTL_REG(0x60)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_1 IXP2000_INTCTL_REG(0x64)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_2 IXP2000_INTCTL_REG(0x68)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_3 IXP2000_INTCTL_REG(0x6c)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_0 IXP2000_INTCTL_REG(0x80)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_1 IXP2000_INTCTL_REG(0x84)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_2 IXP2000_INTCTL_REG(0x88)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_3 IXP2000_INTCTL_REG(0x8c)
+#define IXP2000_IRQ_THD_STATUS_A_0 IXP2000_INTCTL_REG(0xe0)
+#define IXP2000_IRQ_THD_STATUS_A_1 IXP2000_INTCTL_REG(0xe4)
+#define IXP2000_IRQ_THD_STATUS_A_2 IXP2000_INTCTL_REG(0xe8)
+#define IXP2000_IRQ_THD_STATUS_A_3 IXP2000_INTCTL_REG(0xec)
+#define IXP2000_IRQ_THD_STATUS_B_0 IXP2000_INTCTL_REG(0x100)
+#define IXP2000_IRQ_THD_STATUS_B_1 IXP2000_INTCTL_REG(0x104)
+#define IXP2000_IRQ_THD_STATUS_B_2 IXP2000_INTCTL_REG(0x108)
+#define IXP2000_IRQ_THD_STATUS_B_3 IXP2000_INTCTL_REG(0x10c)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_0 IXP2000_INTCTL_REG(0x160)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_1 IXP2000_INTCTL_REG(0x164)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_2 IXP2000_INTCTL_REG(0x168)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_3 IXP2000_INTCTL_REG(0x16c)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_0 IXP2000_INTCTL_REG(0x180)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_1 IXP2000_INTCTL_REG(0x184)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_2 IXP2000_INTCTL_REG(0x188)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_3 IXP2000_INTCTL_REG(0x18c)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_0 IXP2000_INTCTL_REG(0x1e0)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_1 IXP2000_INTCTL_REG(0x1e4)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_2 IXP2000_INTCTL_REG(0x1e8)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_3 IXP2000_INTCTL_REG(0x1ec)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_0 IXP2000_INTCTL_REG(0x200)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_1 IXP2000_INTCTL_REG(0x204)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_2 IXP2000_INTCTL_REG(0x208)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_3 IXP2000_INTCTL_REG(0x20c)
/*
* Mask of valid IRQs in the 32-bit IRQ register. We use
- * this to mark certain IRQs as being in-valid.
+ * this to mark certain IRQs as being invalid.
*/
#define IXP2000_VALID_IRQ_MASK 0x0f0fffff
#define IXP2000_PCI_XSCALE_INT_ENABLE IXP2000_PCI_CSR(0x15C)
#define IXP2000_PCICNTL_PNR (1<<17) /* PCI not Reset bit of PCI_CONTROL */
-#define IXP2000_PCICNTL_PCF (1<<28) /* PCI Centrolfunction bit */
-#define IXP2000_XSCALE_INT (1<<1) /* Interrupt from XScale to PCI */
+#define IXP2000_PCICNTL_PCF (1<<28) /* PCI Central function bit */
+#define IXP2000_XSCALE_INT (1<<1) /* Interrupt from XScale to PCI */
/* These are from the IRQ register in the PCI ISR register */
#define PCI_CONTROL_BE_DEO (1 << 22) /* Big Endian Data Enable Out */
#define PCI_CONTROL_BE_DEI (1 << 21) /* Big Endian Data Enable In */
#define PCI_CONTROL_BE_BEO (1 << 20) /* Big Endian Byte Enable Out */
#define PCI_CONTROL_BE_BEI (1 << 19) /* Big Endian Byte Enable In */
-#define PCI_CONTROL_PNR (1 << 17) /* PCI Not Reset bit */
+#define PCI_CONTROL_IEE (1 << 17) /* I/O cycle Endian swap Enable */
#define IXP2000_PCI_RST_REL (1 << 2)
#define CFG_RST_DIR (*IXP2000_PCI_CONTROL & IXP2000_PCICNTL_PCF)
#define SLOWPORT_CCR_DIV_30 0x0f
/*
- * PCR values. PCR configure the mode of the interfac3
+ * PCR values. PCR configure the mode of the interface.
*/
#define SLOWPORT_MODE_FLASH 0x00
#define SLOWPORT_MODE_LUCENT 0x01
#define SLOWPORT_MODE_MOTOROLA_UP 0x04
/*
- * ADC values. Defines data and address bus widths
+ * ADC values. Defines data and address bus widths.
*/
#define SLOWPORT_ADDR_WIDTH_8 0x00
#define SLOWPORT_ADDR_WIDTH_16 0x01
#define SLOWPORT_DATA_WIDTH_32 0x30
/*
- * Masks and shifts for various fields in the WTC and RTC registers
+ * Masks and shifts for various fields in the WTC and RTC registers.
*/
#define SLOWPORT_WRTC_MASK_HD 0x0003
-#define SLOWPORT_WRTC_MASK_SU 0x003c
-#define SLOWPORT_WRTC_MASK_PW 0x03c0
+#define SLOWPORT_WRTC_MASK_PW 0x003c
+#define SLOWPORT_WRTC_MASK_SU 0x03c0
#define SLOWPORT_WRTC_SHIFT_HD 0x00
#define SLOWPORT_WRTC_SHIFT_SU 0x02
/*
- * GPIO registers & GPIO interface
+ * GPIO registers & GPIO interface.
*/
#define IXP2000_GPIO_REG(x) ((volatile unsigned long*)(IXP2000_GPIO_VIRT_BASE+(x)))
#define IXP2000_GPIO_PLR IXP2000_GPIO_REG(0x00)
#define GLOBAL_REG_BASE (IXP2000_GLOBAL_REG_VIRT_BASE + 0x0a00)
#define GLOBAL_REG(x) (volatile unsigned long*)(GLOBAL_REG_BASE | (x))
-#define IXP2000_PROD_ID GLOBAL_REG(0x00)
-
#define IXP2000_MAJ_PROD_TYPE_MASK 0x001F0000
#define IXP2000_MAJ_PROD_TYPE_IXP2000 0x00000000
#define IXP2000_MIN_PROD_TYPE_MASK 0x0000FF00
#define IXP2000_MIN_REV_MASK 0x0000000F
#define IXP2000_PROD_ID_MASK 0xFFFFFFFF
+#define IXP2000_PRODUCT_ID GLOBAL_REG(0x00)
#define IXP2000_MISC_CONTROL GLOBAL_REG(0x04)
#define IXP2000_MSF_CLK_CNTRL GLOBAL_REG(0x08)
#define IXP2000_RESET0 GLOBAL_REG(0x0c)
#define WDT_RESET_ENABLE 0x01000000
+/*
+ * MSF registers. The IXP2400 and IXP2800 have somewhat different MSF
+ * units, but the registers that differ between the two don't overlap,
+ * so we can have one register list for both.
+ */
+#define IXP2000_MSF_REG(x) ((volatile unsigned long*)(IXP2000_MSF_VIRT_BASE + (x)))
+#define IXP2000_MSF_RX_CONTROL IXP2000_MSF_REG(0x0000)
+#define IXP2000_MSF_TX_CONTROL IXP2000_MSF_REG(0x0004)
+#define IXP2000_MSF_INTERRUPT_STATUS IXP2000_MSF_REG(0x0008)
+#define IXP2000_MSF_INTERRUPT_ENABLE IXP2000_MSF_REG(0x000c)
+#define IXP2000_MSF_CSIX_TYPE_MAP IXP2000_MSF_REG(0x0010)
+#define IXP2000_MSF_FC_EGRESS_STATUS IXP2000_MSF_REG(0x0014)
+#define IXP2000_MSF_FC_INGRESS_STATUS IXP2000_MSF_REG(0x0018)
+#define IXP2000_MSF_HWM_CONTROL IXP2000_MSF_REG(0x0024)
+#define IXP2000_MSF_FC_STATUS_OVERRIDE IXP2000_MSF_REG(0x0028)
+#define IXP2000_MSF_CLOCK_CONTROL IXP2000_MSF_REG(0x002c)
+#define IXP2000_MSF_RX_PORT_MAP IXP2000_MSF_REG(0x0040)
+#define IXP2000_MSF_RBUF_ELEMENT_DONE IXP2000_MSF_REG(0x0044)
+#define IXP2000_MSF_RX_MPHY_POLL_LIMIT IXP2000_MSF_REG(0x0048)
+#define IXP2000_MSF_RX_CALENDAR_LENGTH IXP2000_MSF_REG(0x0048)
+#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_0 IXP2000_MSF_REG(0x0050)
+#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_1 IXP2000_MSF_REG(0x0054)
+#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_2 IXP2000_MSF_REG(0x0058)
+#define IXP2000_MSF_TX_SEQUENCE_0 IXP2000_MSF_REG(0x0060)
+#define IXP2000_MSF_TX_SEQUENCE_1 IXP2000_MSF_REG(0x0064)
+#define IXP2000_MSF_TX_SEQUENCE_2 IXP2000_MSF_REG(0x0068)
+#define IXP2000_MSF_TX_MPHY_POLL_LIMIT IXP2000_MSF_REG(0x0070)
+#define IXP2000_MSF_TX_CALENDAR_LENGTH IXP2000_MSF_REG(0x0070)
+#define IXP2000_MSF_RX_UP_CONTROL_0 IXP2000_MSF_REG(0x0080)
+#define IXP2000_MSF_RX_UP_CONTROL_1 IXP2000_MSF_REG(0x0084)
+#define IXP2000_MSF_RX_UP_CONTROL_2 IXP2000_MSF_REG(0x0088)
+#define IXP2000_MSF_RX_UP_CONTROL_3 IXP2000_MSF_REG(0x008c)
+#define IXP2000_MSF_TX_UP_CONTROL_0 IXP2000_MSF_REG(0x0090)
+#define IXP2000_MSF_TX_UP_CONTROL_1 IXP2000_MSF_REG(0x0094)
+#define IXP2000_MSF_TX_UP_CONTROL_2 IXP2000_MSF_REG(0x0098)
+#define IXP2000_MSF_TX_UP_CONTROL_3 IXP2000_MSF_REG(0x009c)
+#define IXP2000_MSF_TRAIN_DATA IXP2000_MSF_REG(0x00a0)
+#define IXP2000_MSF_TRAIN_CALENDAR IXP2000_MSF_REG(0x00a4)
+#define IXP2000_MSF_TRAIN_FLOW_CONTROL IXP2000_MSF_REG(0x00a8)
+#define IXP2000_MSF_TX_CALENDAR_0 IXP2000_MSF_REG(0x1000)
+#define IXP2000_MSF_RX_PORT_CALENDAR_STATUS IXP2000_MSF_REG(0x1400)
+
+
#endif /* _IXP2000_H_ */
git://git.onelab.eu / linux-2.6.git / blobdiff