File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/drivers/block/umem.h b/drivers/block/umem.h
new file mode 100644
index 0000000..375c689
--- /dev/null
+++ b/drivers/block/umem.h
@@ -0,0 +1,133 @@
+
+/*
+ * This file contains defines for the
+ * Micro Memory MM5415
+ * family PCI Memory Module with Battery Backup.
+ *
+ * Copyright Micro Memory INC 2001. All rights reserved.
+ * Release under the terms of the GNU GENERAL PUBLIC LICENSE version 2.
+ * See the file COPYING.
+ */
+
+#ifndef _DRIVERS_BLOCK_MM_H
+#define _DRIVERS_BLOCK_MM_H
+
+
+#define IRQ_TIMEOUT (1 * HZ)
+
+/* CSR register definition */
+#define MEMCTRLSTATUS_MAGIC 0x00
+#define MM_MAGIC_VALUE (unsigned char)0x59
+
+#define MEMCTRLSTATUS_BATTERY 0x04
+#define BATTERY_1_DISABLED 0x01
+#define BATTERY_1_FAILURE 0x02
+#define BATTERY_2_DISABLED 0x04
+#define BATTERY_2_FAILURE 0x08
+
+#define MEMCTRLSTATUS_MEMORY 0x07
+#define MEM_128_MB 0xfe
+#define MEM_256_MB 0xfc
+#define MEM_512_MB 0xf8
+#define MEM_1_GB 0xf0
+#define MEM_2_GB 0xe0
+
+#define MEMCTRLCMD_LEDCTRL 0x08
+#define LED_REMOVE 2
+#define LED_FAULT 4
+#define LED_POWER 6
+#define LED_FLIP 255
+#define LED_OFF 0x00
+#define LED_ON 0x01
+#define LED_FLASH_3_5 0x02
+#define LED_FLASH_7_0 0x03
+#define LED_POWER_ON 0x00
+#define LED_POWER_OFF 0x01
+#define USER_BIT1 0x01
+#define USER_BIT2 0x02
+
+#define MEMORY_INITIALIZED USER_BIT1
+
+#define MEMCTRLCMD_ERRCTRL 0x0C
+#define EDC_NONE_DEFAULT 0x00
+#define EDC_NONE 0x01
+#define EDC_STORE_READ 0x02
+#define EDC_STORE_CORRECT 0x03
+
+#define MEMCTRLCMD_ERRCNT 0x0D
+#define MEMCTRLCMD_ERRSTATUS 0x0E
+
+#define ERROR_DATA_LOG 0x20
+#define ERROR_ADDR_LOG 0x28
+#define ERROR_COUNT 0x3D
+#define ERROR_SYNDROME 0x3E
+#define ERROR_CHECK 0x3F
+
+#define DMA_PCI_ADDR 0x40
+#define DMA_LOCAL_ADDR 0x48
+#define DMA_TRANSFER_SIZE 0x50
+#define DMA_DESCRIPTOR_ADDR 0x58
+#define DMA_SEMAPHORE_ADDR 0x60
+#define DMA_STATUS_CTRL 0x68
+#define DMASCR_GO 0x00001
+#define DMASCR_TRANSFER_READ 0x00002
+#define DMASCR_CHAIN_EN 0x00004
+#define DMASCR_SEM_EN 0x00010
+#define DMASCR_DMA_COMP_EN 0x00020
+#define DMASCR_CHAIN_COMP_EN 0x00040
+#define DMASCR_ERR_INT_EN 0x00080
+#define DMASCR_PARITY_INT_EN 0x00100
+#define DMASCR_ANY_ERR 0x00800
+#define DMASCR_MBE_ERR 0x01000
+#define DMASCR_PARITY_ERR_REP 0x02000
+#define DMASCR_PARITY_ERR_DET 0x04000
+#define DMASCR_SYSTEM_ERR_SIG 0x08000
+#define DMASCR_TARGET_ABT 0x10000
+#define DMASCR_MASTER_ABT 0x20000
+#define DMASCR_DMA_COMPLETE 0x40000
+#define DMASCR_CHAIN_COMPLETE 0x80000
+
+/*
+3.SOME PCs HAVE HOST BRIDGES WHICH APPARENTLY DO NOT CORRECTLY HANDLE
+READ-LINE (0xE) OR READ-MULTIPLE (0xC) PCI COMMAND CODES DURING DMA
+TRANSFERS. IN OTHER SYSTEMS THESE COMMAND CODES WILL CAUSE THE HOST BRIDGE
+TO ALLOW LONGER BURSTS DURING DMA READ OPERATIONS. THE UPPER FOUR BITS
+(31..28) OF THE DMA CSR HAVE BEEN MADE PROGRAMMABLE, SO THAT EITHER A 0x6,
+AN 0xE OR A 0xC CAN BE WRITTEN TO THEM TO SET THE COMMAND CODE USED DURING
+DMA READ OPERATIONS.
+*/
+#define DMASCR_READ 0x60000000
+#define DMASCR_READLINE 0xE0000000
+#define DMASCR_READMULTI 0xC0000000
+
+
+#define DMASCR_ERROR_MASK (DMASCR_MASTER_ABT | DMASCR_TARGET_ABT | DMASCR_SYSTEM_ERR_SIG | DMASCR_PARITY_ERR_DET | DMASCR_MBE_ERR | DMASCR_ANY_ERR)
+#define DMASCR_HARD_ERROR (DMASCR_MASTER_ABT | DMASCR_TARGET_ABT | DMASCR_SYSTEM_ERR_SIG | DMASCR_PARITY_ERR_DET | DMASCR_MBE_ERR)
+
+#define WINDOWMAP_WINNUM 0x7B
+
+#define DMA_READ_FROM_HOST 0
+#define DMA_WRITE_TO_HOST 1
+
+struct mm_dma_desc {
+ __le64 pci_addr;
+ __le64 local_addr;
+ __le32 transfer_size;
+ u32 zero1;
+ __le64 next_desc_addr;
+ __le64 sem_addr;
+ __le32 control_bits;
+ u32 zero2;
+
+ dma_addr_t data_dma_handle;
+
+ /* Copy of the bits */
+ __le64 sem_control_bits;
+} __attribute__((aligned(8)));
+
+/* bits for card->flags */
+#define UM_FLAG_DMA_IN_REGS 1
+#define UM_FLAG_NO_BYTE_STATUS 2
+#define UM_FLAG_NO_BATTREG 4
+#define UM_FLAG_NO_BATT 8
+#endif