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authormushtaq khan <mushtaq_k@procsys.com>2007-04-20 14:23:02 +0530
committerWolfgang Denk <wd@denx.de>2007-05-15 23:25:37 +0200
commit66d9dbec1cc27d6398ee6cf84639dbe14971251e (patch)
tree55c162c1992cf22fb7a94cb71009e5a9e87f36f9 /include
parent644e6fb4eb8be90ea04ba34b643a8bf019d680e0 (diff)
Add driver for S-ATA-controller on Intel processors with South
Bridge, ICH-5, ICH-6 and ICH-7. Implementation: 1. Code is divided in to two files. All functions, which are controller specific are kept in "drivers/ata_piix.c" file and functions, which are not controller specific, are kept in "common/cmd_sata.c" file. 2. Reading and Writing from the S-ATA drive is done using PIO method. 3. Driver can be configured for 48-bit addressing by defining macro CONFIG_LBA48, if this macro is not defined driver uses the 28-bit addressing. 4. S-ATA read function is hooked to the File system, commands like ext2ls and ext2load file can be used. This has been tested. 5. U-Boot command "SATA_init" is added, which initializes the S-ATA controller and identifies the S-ATA drives connected to it. 6. U-Boot command "sata" is added, which is used to read/write, print partition table and get info about the drives present. This I have implemented in same way as "ide" command is implemented in U-Boot. 7. This driver is for S-ATA in native mode. 8. This driver does not support the Native command queuing and Hot-plugging. Signed-off-by: Mushtaq Khan <mushtaq_k@procsys.com>
Diffstat (limited to 'include')
-rw-r--r--include/ata.h60
-rw-r--r--include/configs/sc520_cdp.h9
-rw-r--r--include/sata.h108
3 files changed, 177 insertions, 0 deletions
diff --git a/include/ata.h b/include/ata.h
index 8584226eb07..d36bdf6cd1c 100644
--- a/include/ata.h
+++ b/include/ata.h
@@ -83,6 +83,66 @@
#define ATA_DEVICE(x) ((x & 1)<<4)
#define ATA_LBA 0xE0
+enum {
+ ATA_MAX_DEVICES = 1, /* per bus/port */
+ ATA_MAX_PRD = 256, /* we could make these 256/256 */
+ ATA_SECT_SIZE = 256, /*256 words per sector */
+
+ /* bits in ATA command block registers */
+ ATA_HOB = (1 << 7), /* LBA48 selector */
+ ATA_NIEN = (1 << 1), /* disable-irq flag */
+ /*ATA_LBA = (1 << 6), *//* LBA28 selector */
+ ATA_DEV1 = (1 << 4), /* Select Device 1 (slave) */
+ ATA_DEVICE_OBS = (1 << 7) | (1 << 5), /* obs bits in dev reg */
+ ATA_DEVCTL_OBS = (1 << 3), /* obsolete bit in devctl reg */
+ ATA_BUSY = (1 << 7), /* BSY status bit */
+ ATA_DRDY = (1 << 6), /* device ready */
+ ATA_DF = (1 << 5), /* device fault */
+ ATA_DRQ = (1 << 3), /* data request i/o */
+ ATA_ERR = (1 << 0), /* have an error */
+ ATA_SRST = (1 << 2), /* software reset */
+ ATA_ABORTED = (1 << 2), /* command aborted */
+ /* ATA command block registers */
+ ATA_REG_DATA = 0x00,
+ ATA_REG_ERR = 0x01,
+ ATA_REG_NSECT = 0x02,
+ ATA_REG_LBAL = 0x03,
+ ATA_REG_LBAM = 0x04,
+ ATA_REG_LBAH = 0x05,
+ ATA_REG_DEVICE = 0x06,
+ ATA_REG_STATUS = 0x07,
+ ATA_PCI_CTL_OFS = 0x02,
+ /* and their aliases */
+ ATA_REG_FEATURE = ATA_REG_ERR,
+ ATA_REG_CMD = ATA_REG_STATUS,
+ ATA_REG_BYTEL = ATA_REG_LBAM,
+ ATA_REG_BYTEH = ATA_REG_LBAH,
+ ATA_REG_DEVSEL = ATA_REG_DEVICE,
+ ATA_REG_IRQ = ATA_REG_NSECT,
+
+ /* SETFEATURES stuff */
+ SETFEATURES_XFER = 0x03,
+ XFER_UDMA_7 = 0x47,
+ XFER_UDMA_6 = 0x46,
+ XFER_UDMA_5 = 0x45,
+ XFER_UDMA_4 = 0x44,
+ XFER_UDMA_3 = 0x43,
+ XFER_UDMA_2 = 0x42,
+ XFER_UDMA_1 = 0x41,
+ XFER_UDMA_0 = 0x40,
+ XFER_MW_DMA_2 = 0x22,
+ XFER_MW_DMA_1 = 0x21,
+ XFER_MW_DMA_0 = 0x20,
+ XFER_PIO_4 = 0x0C,
+ XFER_PIO_3 = 0x0B,
+ XFER_PIO_2 = 0x0A,
+ XFER_PIO_1 = 0x09,
+ XFER_PIO_0 = 0x08,
+ XFER_SW_DMA_2 = 0x12,
+ XFER_SW_DMA_1 = 0x11,
+ XFER_SW_DMA_0 = 0x10,
+ XFER_PIO_SLOW = 0x00
+};
/*
* ATA Commands (only mandatory commands listed here)
*/
diff --git a/include/configs/sc520_cdp.h b/include/configs/sc520_cdp.h
index d7d07a62fc9..8b2ec077bd9 100644
--- a/include/configs/sc520_cdp.h
+++ b/include/configs/sc520_cdp.h
@@ -182,6 +182,15 @@
#undef CONFIG_IDE_RESET_ROUTINE /* no special reset function */
/************************************************************
+*SATA/Native Stuff
+************************************************************/
+#define CFG_SATA_SUPPORTED 1
+#define CFG_SATA_MAXBUS 2 /*Max Sata buses supported */
+#define CFG_SATA_DEVS_PER_BUS 2 /*Max no. of devices per bus/port */
+#define CFG_SATA_MAXDEVICES (CFG_SATA_MAXBUS* CFG_SATA_DEVS_PER_BUS)
+#define CFG_ATA_PIIX 1 /*Supports ata_piix driver */
+
+/************************************************************
* ATAPI support (experimental)
************************************************************/
#define CONFIG_ATAPI /* enable ATAPI Support */
diff --git a/include/sata.h b/include/sata.h
new file mode 100644
index 00000000000..c6fa2ab5bcd
--- /dev/null
+++ b/include/sata.h
@@ -0,0 +1,108 @@
+
+#if (DEBUG_SATA)
+#define PRINTF(fmt,args...) printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+struct sata_ioports {
+ unsigned long cmd_addr;
+ unsigned long data_addr;
+ unsigned long error_addr;
+ unsigned long feature_addr;
+ unsigned long nsect_addr;
+ unsigned long lbal_addr;
+ unsigned long lbam_addr;
+ unsigned long lbah_addr;
+ unsigned long device_addr;
+ unsigned long status_addr;
+ unsigned long command_addr;
+ unsigned long altstatus_addr;
+ unsigned long ctl_addr;
+ unsigned long bmdma_addr;
+ unsigned long scr_addr;
+};
+
+struct sata_port {
+ unsigned char port_no; /*primary-0, secondary=1 */
+ struct sata_ioports ioaddr; /*ATA cmd/ctl/dma reg blks */
+ unsigned char ctl_reg;
+ unsigned char last_ctl;
+ unsigned char port_state; /*1-port is present and
+ 0-port is not available */
+ unsigned char dev_mask;
+};
+
+/***********SATA LIBRARY SPECIFIC DEFINITIONS AND DECLARATIONS**************/
+#ifdef SATA_DECL /*SATA library specific declarations */
+#define ata_id_has_lba48(id) ((id)[83] & (1 << 10))
+#define ata_id_has_lba(id) ((id)[49] & (1 << 9))
+#define ata_id_has_dma(id) ((id)[49] & (1 << 8))
+#define ata_id_u32(id,n) \
+ (((u32) (id)[(n) + 1] << 16) | ((u32) (id)[(n)]))
+#define ata_id_u64(id,n) \
+ (((u64) (id)[(n) + 3] << 48) | \
+ ((u64) (id)[(n) + 2] << 32) | \
+ ((u64) (id)[(n) + 1] << 16) | \
+ ((u64) (id)[(n) + 0]) )
+#endif
+
+#ifdef SATA_DECL /*SATA library specific declarations */
+static inline void
+ata_dump_id (u16 * id)
+{
+ PRINTF ("49==0x%04x "
+ "53==0x%04x "
+ "63==0x%04x "
+ "64==0x%04x "
+ "75==0x%04x \n", id[49], id[53], id[63], id[64], id[75]);
+ PRINTF ("80==0x%04x "
+ "81==0x%04x "
+ "82==0x%04x "
+ "83==0x%04x "
+ "84==0x%04x \n", id[80], id[81], id[82], id[83], id[84]);
+ PRINTF ("88==0x%04x " "93==0x%04x\n", id[88], id[93]);
+}
+#endif
+
+#ifdef SATA_DECL /*SATA library specific declarations */
+int sata_bus_softreset (int num);
+void sata_identify (int num, int dev);
+void sata_port (struct sata_ioports *ioport);
+void set_Feature_cmd (int num, int dev);
+int sata_devchk (struct sata_ioports *ioaddr, int dev);
+void dev_select (struct sata_ioports *ioaddr, int dev);
+u8 sata_busy_wait (struct sata_ioports *ioaddr, int bits, unsigned int max);
+u8 sata_chk_status (struct sata_ioports *ioaddr);
+ulong sata_read (int device, lbaint_t blknr, ulong blkcnt, ulong * buffer);
+ulong sata_write (int device, lbaint_t blknr, ulong blkcnt, ulong * buffer);
+void msleep (int count);
+#else
+extern int sata_bus_softreset (int num);
+extern void sata_identify (int num, int dev);
+extern void sata_port (struct sata_ioports *ioport);
+extern void set_Feature_cmd (int num, int dev);
+extern ulong sata_read (int device, lbaint_t blknr,
+ ulong blkcnt, ulong * buffer);
+extern ulong sata_write (int device, lbaint_t blknr,
+ ulong blkcnt, ulong * buffer);
+extern void msleep (int count);
+#endif
+
+/************DRIVER SPECIFIC DEFINITIONS AND DECLARATIONS**************/
+
+#ifdef DRV_DECL /*Driver specific declaration */
+int init_sata (void);
+#else
+extern int init_sata (void);
+#endif
+
+#ifdef DRV_DECL /*Defines Driver Specific variables */
+struct sata_port port[CFG_SATA_MAXBUS];
+block_dev_desc_t sata_dev_desc[CFG_SATA_MAXDEVICES];
+int curr_dev = -1;
+#else
+extern struct sata_port port[CFG_SATA_MAXBUS];
+extern block_dev_desc_t sata_dev_desc[CFG_SATA_MAXDEVICES];
+extern int curr_dev;
+#endif