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Diffstat (limited to 'drivers/block/ftide020.c')
-rw-r--r--drivers/block/ftide020.c347
1 files changed, 0 insertions, 347 deletions
diff --git a/drivers/block/ftide020.c b/drivers/block/ftide020.c
deleted file mode 100644
index 1f6995e..0000000
--- a/drivers/block/ftide020.c
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * 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>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-/* 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 */
-
-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, const 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("FTIDE020_S\n");
- } else {
- printf("FTIDE020_S 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;
-}
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