From 66d9dbec1cc27d6398ee6cf84639dbe14971251e Mon Sep 17 00:00:00 2001 From: mushtaq khan Date: Fri, 20 Apr 2007 14:23:02 +0530 Subject: 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 --- include/sata.h | 108 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 108 insertions(+) create mode 100644 include/sata.h (limited to 'include/sata.h') diff --git a/include/sata.h b/include/sata.h new file mode 100644 index 000000000..c6fa2ab5b --- /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 -- cgit v1.2.3