ADS5121 Add PATA support

Original patch from Ralph Kondziella
plus clean up by Wolfgang Denk
plus changes by John Rigby
    use ips clock not lpc
    port forward to current u-boot release

Signed-off-by: Ralph Kondziella <rk@argos-messtechnik.de>
Signed-off-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: John Rigby <jrigby@freescale.com>

include/asm-ppc/immap_512x.h

@@ -469,7 +469,34 @@ typedef struct lpc512x {
  * PATA
  */
 typedef struct pata512x {
-	u8 fixme[0x100];
+	/* LOCAL Registers */
+	u32 pata_time1;		/* Time register 1: PIO and tx timing parameter */
+	u32 pata_time2;		/* Time register 2: PIO timing parameter */
+	u32 pata_time3;		/* Time register 3: PIO and MDMA timing parameter */
+	u32 pata_time4;		/* Time register 4: MDMA and UDMA timing parameter */
+	u32 pata_time5;		/* Time register 5: UDMA timing parameter */
+	u32 pata_time6;		/* Time register 6: UDMA timing parameter */
+	u32 pata_fifo_data32;   /* 32bit wide dataport to/from FIFO */
+	u32 pata_fifo_data16;   /* 16bit wide dataport to/from FIFO */
+	u32 pata_fifo_fill;	/* FIFO filling in halfwords (READONLY)*/
+	u32 pata_ata_control;   /* ATA Interface control register */
+	u32 pata_irq_pending;   /* Interrupt pending register (READONLY) */
+	u32 pata_irq_enable;	/* Interrupt enable register */
+	u32 pata_irq_clear;	/* Interrupt clear register (WRITEONLY)*/
+	u32 pata_fifo_alarm;	/* fifo alarm threshold */
+	u32 res1[0x1A];
+	/* DRIVE Registers */
+	u32 pata_drive_data;	/* drive data register*/
+	u32 pata_drive_features;/* drive features register */
+	u32 pata_drive_sectcnt; /* drive sector count register */
+	u32 pata_drive_sectnum; /* drive sector number register */
+	u32 pata_drive_cyllow;  /* drive cylinder low register */
+	u32 pata_drive_cylhigh; /* drive cylinder high register */
+	u32 pata_drive_dev_head;/* drive device head register */
+	u32 pata_drive_command; /* write = drive command, read = drive status reg */
+	u32 res2[0x06];
+	u32 pata_drive_alt_stat;/* write = drive control, read = drive alt status reg */
+	u32 res3[0x09];
 } pata512x_t;
 
 /*

include/configs/ads5121.h

@@ -355,11 +355,19 @@
 #define CONFIG_CMD_EEPROM
 #define CONFIG_CMD_DATE
 #undef CONFIG_CMD_FUSE
+#define CONFIG_CMD_IDE
+#define CONFIG_CMD_EXT2
 
 #if defined(CONFIG_PCI)
 #define CONFIG_CMD_PCI
 #endif
 
+#if defined(CONFIG_CMD_IDE)
+#define CONFIG_DOS_PARTITION
+#define CONFIG_MAC_PARTITION
+#define CONFIG_ISO_PARTITION
+#endif /* defined(CONFIG_CMD_IDE) */
+
 /*
  * Watchdog timeout = CONFIG_SYS_WATCHDOG_VALUE * 65536 / IPS clock.
  * For example, when IPS is set to 66MHz and CONFIG_SYS_WATCHDOG_VALUE is set
@@ -496,4 +504,48 @@
 #define OF_TBCLK		(bd->bi_busfreq / 4)
 #define OF_STDOUT_PATH		"/soc@80000000/serial@11300"
 
+/*-----------------------------------------------------------------------
+ * IDE/ATA stuff
+ *-----------------------------------------------------------------------
+ */
+
+#undef  CONFIG_IDE_8xx_PCCARD		/* Use IDE with PC Card	Adapter	*/
+#undef	CONFIG_IDE_8xx_DIRECT		/* Direct IDE    not supported	*/
+#undef	CONFIG_IDE_LED			/* LED   for IDE not supported	*/
+
+#define CONFIG_IDE_RESET		/* reset for IDE supported	*/
+#define CONFIG_IDE_PREINIT
+
+#define CONFIG_SYS_IDE_MAXBUS		1	/* max. 1 IDE bus		*/
+#define CONFIG_SYS_IDE_MAXDEVICE	2	/* max. 1 drive per IDE bus	*/
+
+#define CONFIG_SYS_ATA_IDE0_OFFSET	0x0000
+#define CONFIG_SYS_ATA_BASE_ADDR	MPC512X_PATA
+
+/* Offset for data I/O			RefMan MPC5121EE Table 28-10	*/
+#define CONFIG_SYS_ATA_DATA_OFFSET	(0x00A0)
+
+/* Offset for normal register accesses	*/
+#define CONFIG_SYS_ATA_REG_OFFSET	(CONFIG_SYS_ATA_DATA_OFFSET)
+
+/* Offset for alternate registers	RefMan MPC5121EE Table 28-23	*/
+#define CONFIG_SYS_ATA_ALT_OFFSET	(0x00D8)
+
+/* Interval between registers	*/
+#define CONFIG_SYS_ATA_STRIDE		4
+
+#define ATA_BASE_ADDR		MPC512X_PATA
+
+/*
+ * Control register bit definitions
+ */
+#define FSL_ATA_CTRL_FIFO_RST_B		0x80000000
+#define FSL_ATA_CTRL_ATA_RST_B		0x40000000
+#define FSL_ATA_CTRL_FIFO_TX_EN		0x20000000
+#define FSL_ATA_CTRL_FIFO_RCV_EN	0x10000000
+#define FSL_ATA_CTRL_DMA_PENDING	0x08000000
+#define FSL_ATA_CTRL_DMA_ULTRA		0x04000000
+#define FSL_ATA_CTRL_DMA_WRITE		0x02000000
+#define FSL_ATA_CTRL_IORDY_EN		0x01000000
+
 #endif	/* __CONFIG_H */

include/mpc512x.h

@@ -573,6 +573,7 @@ void iopin_initialize(iopin_t *,int);
 
  /* Register Offset Base */
 #define MPC512X_FEC		(CONFIG_SYS_IMMR + 0x02800)
+#define MPC512X_PATA		(CONFIG_SYS_IMMR + 0x10200)
 
 /* IIM control */
 #define IIM_SET_UA(bk, f)	((bk << 3) | (f >> 5))