summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/Makefile1
-rw-r--r--drivers/block/ftide020.c367
-rw-r--r--drivers/block/ftide020.h283
3 files changed, 651 insertions, 0 deletions
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index aa7dc87..2efe981 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -28,6 +28,7 @@ LIB := $(obj)libblock.o
COBJS-$(CONFIG_SCSI_AHCI) += ahci.o
COBJS-$(CONFIG_ATA_PIIX) += ata_piix.o
COBJS-$(CONFIG_FSL_SATA) += fsl_sata.o
+COBJS-$(CONFIG_IDE_FTIDE020) += ftide020.o
COBJS-$(CONFIG_LIBATA) += libata.o
COBJS-$(CONFIG_CMD_MG_DISK) += mg_disk.o
COBJS-$(CONFIG_MVSATA_IDE) += mvsata_ide.o
diff --git a/drivers/block/ftide020.c b/drivers/block/ftide020.c
new file mode 100644
index 0000000..2eef3e9
--- /dev/null
+++ b/drivers/block/ftide020.c
@@ -0,0 +1,367 @@
+/*
+ * Faraday FTIDE020 ATA Controller (AHB)
+ *
+ * (C) Copyright 2011 Andes Technology
+ * Greentime Hu <greentime@andestech.com>
+ * Macpaul Lin <macpaul@andestech.com>
+ * Kuo-Wei Chou <kwchou@andestech.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+/* ftide020.c - ide support functions for the FTIDE020_S controller */
+
+#include <config.h>
+#include <common.h>
+#include <ata.h>
+#include <ide.h>
+#include <asm/io.h>
+#include <api_public.h>
+
+#include "ftide020.h"
+
+/* base address */
+#define FTIDE_BASE CONFIG_SYS_ATA_BASE_ADDR
+
+/*
+ * data address - The CMD and DATA use the same FIFO in FTIDE020_S
+ * FTIDE_DATA = CONFIG_SYS_ATA_BASE_ADDR + CONFIG_SYS_ATA_DATA_OFFSET
+ * = &ftide020->rw_fifo
+ */
+#define FTIDE_DATA (&ftide020->rw_fifo)
+
+/* command and data I/O macros */
+/* 0x0 - DATA FIFO */
+#define WRITE_DATA(x) outl((x), &ftide020->rw_fifo) /* 0x00 */
+#define READ_DATA() inl(&ftide020->rw_fifo) /* 0x00 */
+/* 0x04 - R: Status Reg, W: CMD_FIFO */
+#define WRITE_CMD(x) outl((x), &ftide020->cmd_fifo) /* 0x04 */
+#define READ_STATUS() inl(&ftide020->cmd_fifo) /* 0x04 */
+
+#define mdelay(n) ({unsigned long msec = (n); while (msec--) udelay(1000); })
+
+void ftide_set_device(int cx8, int dev)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+
+ WRITE_CMD(SET_DEV_CMD | IDE_SET_CX8(cx8) | dev);
+}
+
+unsigned char ide_read_register(int dev, unsigned int port)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+
+ ftide_set_device(0, dev);
+ WRITE_CMD(READ_REG_CMD | IDE_REG_CS_READ(CONFIG_IDE_REG_CS) |
+ IDE_REG_DA_WRITE(port));
+
+ return READ_DATA() & 0xff;
+}
+
+void ide_write_register(int dev, unsigned int port, unsigned char val)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+
+ ftide_set_device(0, dev);
+ WRITE_CMD(WRITE_REG_CMD | IDE_REG_CS_WRITE(CONFIG_IDE_REG_CS) |
+ IDE_REG_DA_WRITE(port) | val);
+}
+
+void ide_write_data(int dev, ulong *sect_buf, int words)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+
+ ftide_set_device(0, dev);
+ WRITE_CMD(WRITE_DATA_CMD | ((words << 2) - 1));
+
+ /* block write */
+ outsl(FTIDE_DATA, sect_buf, words);
+}
+
+void ide_read_data(int dev, ulong *sect_buf, int words)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+
+ ftide_set_device(0, dev);
+ WRITE_CMD(READ_DATA_CMD | ((words << 2) - 1));
+
+ /* block read */
+ insl(FTIDE_DATA, sect_buf, words);
+}
+
+void ftide_dfifo_ready(ulong *time)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+
+ while (!(READ_STATUS() & STATUS_RFE)) {
+ if (*time-- == 0)
+ break;
+
+ udelay(100);
+ }
+}
+
+extern ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS];
+
+/* Reset_IDE_controller */
+static void reset_ide_controller(void)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+ unsigned int val;
+
+ val = inl(&ftide020->cr);
+
+ val |= CONTROL_RST;
+ outl(val, &ftide020->cr);
+
+ /* wait until reset OK, this is poor HW design */
+ mdelay(50);
+ val &= ~(CONTROL_RST);
+ outl(val, &ftide020->cr);
+
+ mdelay(50);
+ val |= CONTROL_SRST;
+ outl(val, &ftide020->cr);
+
+ /* wait until reset OK, this is poor HW design */
+ mdelay(50);
+ val &= ~(CONTROL_SRST);
+ outl(val, &ftide020->cr);
+
+ /* IORDY enable for PIO, for 2 device */
+ val |= (CONTROL_IRE0 | CONTROL_IRE1);
+ outl(val, &ftide020->cr);
+}
+
+/* IDE clock frequence */
+uint ftide_clock_freq(void)
+{
+ /*
+ * todo: To aquire dynamic system frequency is dependend on the power
+ * management unit which the ftide020 is connected to. In current,
+ * there are only few PMU supports in u-boot.
+ * So this function is wait for future enhancement.
+ */
+ return 100;
+}
+
+/* Calculate Timing Registers */
+static unsigned int timing_cal(u16 t0, u16 t1, u16 t2, u16 t4)
+{
+ unsigned int val, ahb_ns = 8;
+ u8 TEOC, T1, T2, T4;
+
+ T1 = (u8) (t1 / ahb_ns);
+ if ((T1 * ahb_ns) == t1)
+ T1--;
+
+ T2 = (u8) (t2 / ahb_ns);
+ if ((T2 * ahb_ns) == t2)
+ T2--;
+
+ T4 = (u8) (t4 / ahb_ns);
+ if ((T4 * ahb_ns) == t4)
+ T4--;
+
+ TEOC = (u8) (t0 / ahb_ns);
+ if ((TEOC * ahb_ns) == t0)
+ TEOC--;
+
+ TEOC = ((TEOC > (T1 + T2 + T4)) ? (TEOC - (T1 + T2 + T4)) : 0);
+
+ /*
+ * Here the fields in data timing registers in PIO mode
+ * is accessed the same way as command timing registers.
+ */
+ val = DT_REG_PIO_T1(T1) |
+ DT_REG_PIO_T2(T2) |
+ DT_REG_PIO_T4(T4) |
+ DT_REG_PIO_TEOC(TEOC);
+
+ return val;
+}
+
+/* Set Timing Register */
+static unsigned int set_mode_timing(u8 dev, u8 id, u8 mode)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+ u16 t0, t1, t2, t4;
+ u8 tcyc, tcvs, tmli, tenv, tack, trp;
+ unsigned int val, sysclk = 8;
+
+ if (id >= TATOL_TIMING)
+ return 0;
+
+ sysclk = ftide_clock_freq();
+ switch (id) {
+ case CMD_TIMING:
+ if (mode < REG_MODE) {
+ t0 = REG_ACCESS_TIMING[REG_T0][mode];
+ t1 = REG_ACCESS_TIMING[REG_T1][mode];
+ t2 = REG_ACCESS_TIMING[REG_T2][mode];
+ t4 = REG_ACCESS_TIMING[REG_T4][mode];
+
+ val = timing_cal(t0, t1, t2, t4);
+ outl(val, (dev ? &ftide020->ctrd1 : &ftide020->ctrd0));
+ return 1;
+ } else
+ return 0;
+ case PIO_TIMING:
+ if (mode < PIO_MODE) {
+ t0 = PIO_ACCESS_TIMING[PIO_T0][mode];
+ t1 = PIO_ACCESS_TIMING[PIO_T1][mode];
+ t2 = PIO_ACCESS_TIMING[PIO_T2][mode];
+ t4 = PIO_ACCESS_TIMING[PIO_T4][mode];
+
+ val = timing_cal(t0, t1, t2, t4);
+
+ outl(val, (dev ? &ftide020->dtrd1 : &ftide020->dtrd0));
+ return 1;
+ } else
+ return 0;
+ case DMA_TIMING:
+ if (mode < UDMA_MODE) {
+ /*
+ * 0.999 is ceiling
+ * for tcyc, tcvs, tmli, tenv, trp, tack
+ */
+ tcyc = (u8) (((UDMA_ACCESS_TIMING[UDMA_TCYC][mode] \
+ * sysclk) + 9990) / 10000);
+ tcvs = (u8) (((UDMA_ACCESS_TIMING[UDMA_TCVS][mode] \
+ * sysclk) + 9990) / 10000);
+ tmli = (u8) (((UDMA_ACCESS_TIMING[UDMA_TMLI][mode] \
+ * sysclk) + 9990) / 10000);
+ tenv = (u8) (((UDMA_ACCESS_TIMING[UDMA_TENV][mode] \
+ * sysclk) + 9990) / 10000);
+ trp = (u8) (((UDMA_ACCESS_TIMING[UDMA_TRP][mode] \
+ * sysclk) + 9990) / 10000);
+ tack = (u8) (((UDMA_ACCESS_TIMING[UDMA_TACK][mode] \
+ * sysclk) + 9990) / 10000);
+
+ val = DT_REG_UDMA_TENV((tenv > 0) ? (tenv - 1) : 0) |
+ DT_REG_UDMA_TMLI((tmli > 0) ? (tmli - 1) : 0) |
+ DT_REG_UDMA_TCYC((tcyc > 0) ? (tcyc - 1) : 0) |
+ DT_REG_UDMA_TACK((tack > 0) ? (tack - 1) : 0) |
+ DT_REG_UDMA_TCVS((tcvs > 0) ? (tcvs - 1) : 0) |
+ DT_REG_UDMA_TRP((trp > 0) ? (trp - 1) : 0);
+
+ outl(val, (dev ? &ftide020->dtrd1 : &ftide020->dtrd0));
+ return 1;
+ } else
+ return 0;
+ default:
+ return 0;
+ }
+}
+
+static void ftide_read_hwrev(void)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+ unsigned int rev;
+
+ rev = inl(&ftide020->revision);
+}
+
+static int ftide_controller_probe(void)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+ unsigned int bak;
+
+ bak = inl(&ftide020->ctrd1);
+
+ /* probing by using shorter setup time */
+ outl(CONFIG_CTRD1_PROBE_T1, &ftide020->ctrd1);
+ if ((inl(&ftide020->ctrd1) & 0xff) != CONFIG_CTRD1_PROBE_T1) {
+ outl(bak, &ftide020->ctrd1);
+ return 0;
+ }
+
+ /* probing by using longer setup time */
+ outl(CONFIG_CTRD1_PROBE_T2, &ftide020->ctrd1);
+ if ((inl(&ftide020->ctrd1) & 0xff) != CONFIG_CTRD1_PROBE_T2) {
+ outl(bak, &ftide020->ctrd1);
+ return 0;
+ }
+
+ outl(bak, &ftide020->ctrd1);
+
+ return 1;
+}
+
+/* ide_preinit() was migrated from linux driver ide_probe_for_ftide() */
+int ide_preinit(void)
+{
+ static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;
+ int status;
+ unsigned int val;
+ int i;
+
+ status = 1;
+ for (i = 0; i < CONFIG_SYS_IDE_MAXBUS; i++)
+ ide_bus_offset[i] = -ATA_STATUS;
+
+ /* auto-detect IDE controller */
+ if (ftide_controller_probe()) {
+ printf("Faraday %s driver version %s\n", FTIDE_IP_NAME,
+ FTIDE_DRIVER_VERSION);
+ } else {
+ printf("Faraday ATA controller not found.\n");
+ return API_ENODEV;
+ }
+
+ /* check HW IP revision */
+ ftide_read_hwrev();
+
+ /* set FIFO threshold */
+ outl(((WRITE_FIFO - RX_THRESH) << 16) | RX_THRESH, &ftide020->dmatirr);
+
+ /* set Device_0 PIO_4 timing */
+ set_mode_timing(0, CMD_TIMING, REG_MODE4);
+ set_mode_timing(0, PIO_TIMING, PIO_MODE4);
+
+ /* set Device_1 PIO_4 timing */
+ set_mode_timing(1, CMD_TIMING, REG_MODE4);
+ set_mode_timing(1, PIO_TIMING, PIO_MODE4);
+
+ /* from E-bios */
+ /* little endian */
+ outl(0x0, &ftide020->cr);
+ mdelay(10);
+
+ outl(0x0fff0fff, &ftide020->ahbtr);
+ mdelay(10);
+
+ /* Enable controller Interrupt */
+ val = inl(&ftide020->cr);
+
+ /* Enable: IDE IRQ, IDE Terminate ERROR IRQ, AHB Timeout error IRQ */
+ val |= (CONTROL_IIE | CONTROL_TERIE | CONTROL_AERIE);
+ outl(val, &ftide020->cr);
+
+ status = 0;
+
+ return status;
+}
+
+void ide_set_reset(int flag)
+{
+ debug("ide_set_reset()\n");
+ reset_ide_controller();
+ return;
+}
diff --git a/drivers/block/ftide020.h b/drivers/block/ftide020.h
new file mode 100644
index 0000000..29d3de9
--- /dev/null
+++ b/drivers/block/ftide020.h
@@ -0,0 +1,283 @@
+/*
+ * Faraday FTIDE020_s ATA Controller (AHB)
+ *
+ * (C) Copyright 2011 Andes Technology
+ * Greentime Hu <greentime@andestech.com>
+ * Macpaul Lin <macpaul@andestech.com>
+ * Kuo-Wei Chou <kwchou@andestech.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#ifndef __FTIDE020_H
+#define __FTIDE020_H
+
+/* ftide020.h - ide support functions for the FTIDE020_S controller */
+
+/* ATA controller register offset */
+struct ftide020_s {
+ unsigned int rw_fifo; /* 0x00 - READ/WRITE FIFO */
+ unsigned int cmd_fifo; /* 0x04 - R: Status Reg, W: CMD_FIFO */
+ unsigned int cr; /* 0x08 - Control Reg */
+ unsigned int dmatirr; /* 0x0c - DMA Threshold/Interrupt Reg */
+ unsigned int ctrd0; /* 0x10 - Command Timing Reg Device 0 */
+ unsigned int dtrd0; /* 0x14 - Data Timing Reg Device 0 */
+ unsigned int ctrd1; /* 0x18 - Command Timing Reg Device 1 */
+ unsigned int dtrd1; /* 0x1c - Data Timing Reg Device 1 */
+ unsigned int ahbtr; /* 0x20 - AHB Timeout Reg */
+ unsigned int RESVD0; /* 0x24 */
+ unsigned int RESVD1; /* 0x28 */
+ unsigned int RESVD2; /* 0x2c */
+ unsigned int f_cfifo; /* 0x30 - Feature Info of CMD_FIFO */
+ unsigned int f_wfifo; /* 0x34 - Feature Info of WRITE_FIFO */
+ unsigned int f_rfifo; /* 0x3c - Feature Info of READ_FIFO */
+ unsigned int revision; /* 0x38 - Revision No. of FTIDE020_S */
+};
+
+/* reference parameters */
+#define CONFIG_IDE_REG_CS 0x2 /* ref: ATA spec chaper 10, table 42 */
+#define CONFIG_CTRD1_PROBE_T1 0x2
+#define CONFIG_CTRD1_PROBE_T2 0x5
+
+/* status register - 0x04 */
+#define STATUS_CSEL (1 << 0) /* CSEL */
+#define STATUS_CS(x) (((x) >> 1) & 0x3) /* CS#[1:0] */
+#define STATUS_DMACK (1 << 3) /* DMACK# */
+#define STATUS_DMARQ (1 << 4) /* DMA req */
+#define STATUS_INTRQ (1 << 5) /* INT req */
+#define STATUS_DIOR (1 << 6) /* DIOR */
+#define STATUS_IORDY (1 << 7) /* I/O ready */
+#define STATUS_DIOW (1 << 8) /* DIOW# */
+#define STATUS_PDIAG (1 << 9) /* PDIAG */
+#define STATUS_DASP (1 << 10) /* DASP# */
+#define STATUS_DEV (1 << 11) /* selected device */
+#define STATUS_PIO (1 << 12) /* PIO in progress */
+#define STATUS_DMA (1 << 13) /* DMA in progress */
+#define STATUS_WFE (1 << 14) /* write fifo full */
+#define STATUS_RFE (1 << 15) /* read fifo empty */
+#define STATUS_COUNTER(x) (((x) >> 16) & 0x3fff) /* data tx counter */
+#define STATUS_ERR (1 << 30) /* trasfer terminated */
+#define STATUS_AER (1 << 31) /* AHB timeout indicate */
+
+/* Control register - 0x08 */
+#define CONTROL_TYPE_PIO 0x0
+#define CONTROL_TYPE_UDMA 0x1
+
+/* Device 0 */
+#define CONTROL_TYP0(x) (((x) & 0x7) << 0)
+#define CONTROL_IRE0 (1 << 3) /* enable IORDY for PIO */
+#define CONTROL_RESVD_DW0 (1 << 4) /* Reserved - DW0 ? */
+#define CONTROL_E0 (1 << 5) /* E0: 1: Big Endian */
+#define CONTROL_RESVD_WP0 (1 << 6) /* Reserved - WP0 ? */
+#define CONTROL_RESVD_SE0 (1 << 7) /* Reserved - SE0 ? */
+#define CONTROL_RESVD_ECC0 (1 << 8) /* Reserved - ECC0 ? */
+
+#define CONTROL_RAEIE (1 << 9) /* IRQ - read fifo almost full */
+#define CONTROL_RNEIE (1 << 10) /* IRQ - read fifo not empty */
+#define CONTROL_WAFIE (1 << 11) /* IRQ - write fifo almost empty */
+#define CONTROL_WNFIE (1 << 12) /* IRQ - write fifo not full */
+#define CONTROL_RESVD_FIRQ (1 << 13) /* RESERVED - FIRQ ? */
+#define CONTROL_AERIE (1 << 14) /* IRQ - AHB timeout error */
+#define CONTROL_IIE (1 << 15) /* IDE IRQ enable */
+
+/* Device 1 */
+#define CONTROL_TYP1(x) (((x) & 0x7) << 16)
+#define CONTROL_IRE1 (1 << 19) /* enable IORDY for PIO */
+#define CONTROL_RESVD_DW1 (1 << 20) /* Reserved - DW1 ? */
+#define CONTROL_E1 (1 << 21) /* E1: 1: Big Endian */
+#define CONTROL_RESVD_WP1 (1 << 22) /* Reserved - WP1 ? */
+#define CONTROL_RESVD_SE1 (1 << 23) /* Reserved - SE1 ? */
+#define CONTROL_RESVD_ECC1 (1 << 24) /* Reserved - ECC1 ? */
+
+#define CONTROL_DRE (1 << 25) /* DMA receive enable */
+#define CONTROL_DTE (1 << 26) /* DMA transmit enable */
+#define CONTRIL_RESVD (1 << 27)
+#define CONTROL_TERIE (1 << 28) /* transfer terminate error IRQ */
+#define CONTROL_T (1 << 29) /* terminate current operation */
+#define CONTROL_SRST (1 << 30) /* IDE soft reset */
+#define CONTROL_RST (1 << 31) /* IDE hardware reset */
+
+/* IRQ register - 0x0c */
+#define IRQ_RXTHRESH(x) (((x) & 0x3ff) << 0) /* Read FIFO threshold */
+#define IRQ_RFAEIRQ (1 << 10) /* Read FIFO almost full intr req */
+#define IRQ_RFNEIRQ (1 << 11) /* Read FIFO not empty intr req */
+#define IRQ_WFAFIRQ (1 << 12) /* Write FIFO almost empty int req */
+#define IRQ_WFNFIRQ (1 << 13) /* Write FIFO not full intr req */
+#define IRQ_RESVD_FIRQ (1 << 14) /* Reserved - FIRQ ? */
+#define IRQ_IIRQ (1 << 15) /* IDE device interrupt request */
+#define IRQ_TXTHRESH(x) (((x) & 0x3ff) << 16) /* Write FIFO thershold */
+#define IRQ_TERMERR (1 << 28) /* Transfer termination indication */
+#define IRQ_AHBERR (1 << 29) /* AHB Timeout indication */
+
+/* Command Timing Register 0-1: ctrd (0x10, 0x18) */
+#define CT_REG_T1(x) (((x) & 0xff) << 0) /* setup time of addressed */
+#define CT_REG_T2(x) (((x) & 0xff) << 8) /* pluse width of DIOR/DIOW */
+#define CT_REG_T4(x) (((x) & 0xff) << 16) /* data hold time */
+#define CT_REG_TEOC(x) (((x) & 0xff) << 24) /* time to the end of a cycle */
+
+/* Data Timing Register 0-1: dtrd (0x14, 0x1c) */
+/*
+ * PIO mode:
+ * b(0:7) DT_REG_PIO_T1: the setup time of addressed
+ * b(8:15) DT_REG_PIO_T2: the pluse width of DIOR/DIOW
+ * b(16:23) DT_REG_PIO_T4: data hold time
+ * b(24:31) DT_REG_PIO_TEOC: the time to the end of a cycle
+ */
+#define DT_REG_PIO_T1(x) (((x) & 0xff) << 0)
+#define DT_REG_PIO_T2(x) (((x) & 0xff) << 8)
+#define DT_REG_PIO_T4(x) (((x) & 0xff) << 16)
+#define DT_REG_PIO_TEOC(x) (((x) & 0xff) << 24)
+
+/*
+ * UDMA mode:
+ * b(0:3) DT_REG_UDMA_TENV: the envelope time
+ * b(4:7) DT_REG_UDMA_TMLI: interlock time
+ * b(8:15) DT_REG_UDMA_TCYC: cycle time - data time
+ * b(16:19) DT_REG_UDMA_TACK: setup and hold time of DMACK
+ * b(23:30) DT_REG_UDMA_TCVS: setup time of CRC
+ * b(24:31) DT_REG_UDMA_TRP: time to ready to pause
+ */
+#define DT_REG_UDMA_TENV(x) (((x) & 0xf) << 0)
+#define DT_REG_UDMA_TMLI(x) (((x) & 0xf) << 4)
+#define DT_REG_UDMA_TCYC(x) (((x) & 0xff) << 8)
+#define DT_REG_UDMA_TACK(x) (((x) & 0xf) << 16)
+#define DT_REG_UDMA_TCVS(x) (((x) & 0xf) << 20)
+#define DT_REG_UDMA_TRP(x) (((x) & 0xff) << 24)
+
+/* ftide020_s command formats */
+/* read: IDE Register (CF1) */
+#define IDE_REG_OPCODE_READ (1 << 13) /* 0x2000 */
+#define IDE_REG_CS_READ(x) (((x) & 0x3) << 11)
+#define IDE_REG_DA_READ(x) (((x) & 0x7) << 8)
+#define IDE_REG_CMD_READ(x) 0x0 /* fixed value */
+
+/* write: IDE Register (CF2) */
+#define IDE_REG_OPCODE_WRITE (0x5 << 13) /* 0xA000 */
+#define IDE_REG_CS_WRITE(x) (((x) & 0x3) << 11)
+#define IDE_REG_DA_WRITE(x) (((x) & 0x7) << 8)
+/* b(0:7) IDE_REG_CMD_WRITE(x): Actual ATA command or data */
+#define IDE_REG_CMD_WRITE(x) (((x) & 0xff) << 0)
+
+/* read/write data: PIO/UDMA (CF3) */
+#define IDE_DATA_WRITE (1 << 15) /* read: 0, write: 1 */
+#define IDE_DATA_OPCODE (0x2 << 13) /* device data access opcode */
+/* b(0:12) IDE_DATA_COUNTER(x): Number of transfers minus 1 */
+#define IDE_DATA_COUNTER(x) (((x) & 0x1fff) << 0)
+
+/* set device: (CF4) */
+#define IDE_SET_OPCODE (0x2740 << 2) /* [15:2], 0x9d00 */
+/* CF3 counter value: 0: Tx in bytes, 1: in blocks (each block is 8 bytes) */
+#define IDE_SET_CX8(x) (((x) & 0x1) << 1)
+#define IDE_SET_DEV(x) (((x) & 0x1) << 0) /* 0: Master, 1: Slave */
+
+/*
+ * IDE command bit definition
+ * This section is designed for minor hardware revision compatibility.
+ */
+#define READ_REG_CMD IDE_REG_OPCODE_READ /* 0x2000 */
+#define WRITE_REG_CMD IDE_REG_OPCODE_WRITE /* 0xA000 */
+#define READ_DATA_CMD IDE_DATA_OPCODE /* 0x4000 */
+#define WRITE_DATA_CMD (IDE_DATA_OPCODE | IDE_DATA_WRITE) /* 0xC000 */
+#define SET_DEV_CMD IDE_SET_OPCODE /* 0x9D00 */
+
+#define TATOL_TIMING 3
+#define CMD_TIMING 0
+#define PIO_TIMING 1
+#define DMA_TIMING 2
+
+/* Timing Parameters */
+/* Register Access Timing Parameters */
+#define REG_PARAMETER 4
+#define REG_T0 0
+#define REG_T1 1
+#define REG_T2 2
+#define REG_T4 3
+
+#define REG_MODE 5
+#define REG_MODE0 0
+#define REG_MODE1 1
+#define REG_MODE2 2
+#define REG_MODE3 3
+#define REG_MODE4 4
+
+/* PIO Access Timing Parameters */
+#define PIO_PARAMETER 4
+#define PIO_T0 0
+#define PIO_T1 1
+#define PIO_T2 2
+#define PIO_T4 3
+
+#define PIO_MODE 5
+#define PIO_MODE0 0
+#define PIO_MODE1 1
+#define PIO_MODE2 2
+#define PIO_MODE3 3
+#define PIO_MODE4 4
+
+/* UDMA Access Timing Parameters */
+#define UDMA_PARAMETER 6
+#define UDMA_TCYC 0
+#define UDMA_TCVS 1
+#define UDMA_TMLI 2
+#define UDMA_TENV 3
+#define UDMA_TRP 4
+#define UDMA_TACK 5
+
+#define UDMA_MODE 7
+#define UDMA_MODE0 0
+#define UDMA_MODE1 1
+#define UDMA_MODE2 2
+#define UDMA_MODE3 3
+#define UDMA_MODE4 4
+#define UDMA_MODE5 5
+#define UDMA_MODE6 6
+
+/*
+ * RX_THRESH:
+ * hardware limitation: max = 8, should support 1,4,8,16,32,64,128,256
+ */
+#define RX_THRESH 8
+#define WRITE_FIFO 32 /* Hardwired value */
+
+/* Time Table */
+unsigned int REG_ACCESS_TIMING[REG_PARAMETER][REG_MODE] = {
+ {600, 383, 330, 180, 120},
+ {70, 50, 30, 30, 25},
+ {290, 290, 290, 80, 70},
+ {30, 20, 15, 10, 10},
+};
+
+unsigned int PIO_ACCESS_TIMING[PIO_PARAMETER][PIO_MODE] = {
+ {600, 383, 240, 180, 120},
+ {70, 50, 30, 30, 25},
+ {165, 125, 100, 80, 70},
+ {30, 20, 15, 10, 10},
+};
+
+unsigned int UDMA_ACCESS_TIMING[UDMA_PARAMETER][UDMA_MODE] = {
+ {1120, 730, 540, 390, 250, 168, 130}, /* 10X */
+ {700, 480, 310, 200, 67, 100, 100}, /* 10X */
+ {200, 200, 200, 200, 200, 200, 200}, /* 10X */
+ {200, 200, 200, 200, 200, 200, 200}, /* 10X */
+ {1600, 1250, 1000, 1000, 1000, 850, 850}, /* 10X */
+ {200, 200, 200, 200, 200, 200, 200}, /* 10X */
+};
+
+#endif /* __FTIDE020_H */
generated by cgit v1.1 at 2024-12-30 09:44:03 +0000