Module Name: src
Committed By: jmcneill
Date: Sat Dec 27 01:18:48 UTC 2014
Modified Files:
src/sys/conf: files
Added Files:
src/sys/dev/ic: dwc_mmc.c dwc_mmc_reg.h dwc_mmc_var.h
Log Message:
add DesignWare SD/MMC controller driver
To generate a diff of this commit:
cvs rdiff -u -r1.1121 -r1.1122 src/sys/conf/files
cvs rdiff -u -r0 -r1.1 src/sys/dev/ic/dwc_mmc.c src/sys/dev/ic/dwc_mmc_reg.h \
src/sys/dev/ic/dwc_mmc_var.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/conf/files
diff -u src/sys/conf/files:1.1121 src/sys/conf/files:1.1122
--- src/sys/conf/files:1.1121 Fri Oct 31 07:38:36 2014
+++ src/sys/conf/files Sat Dec 27 01:18:48 2014
@@ -1,4 +1,4 @@
-# $NetBSD: files,v 1.1121 2014/10/31 07:38:36 uebayasi Exp $
+# $NetBSD: files,v 1.1122 2014/12/27 01:18:48 jmcneill Exp $
# @(#)files.newconf 7.5 (Berkeley) 5/10/93
version 20141030
@@ -1264,6 +1264,11 @@ file dev/ic/w83l518d_sdmmc.c wb
device rtsx: sdmmcbus
file dev/ic/rtsx.c rtsx
+# DesignWare SD/MMC host controller
+defflag opt_dwc_mmc.h DWC_MMC_DEBUG
+device dwcmmc: sdmmcbus
+file dev/ic/dwc_mmc.c dwcmmc
+
# Myson MTD803 3-in-1 Fast Ethernet Controller
device mtd: arp, ether, ifnet, mii
file dev/ic/mtd803.c mtd
Added files:
Index: src/sys/dev/ic/dwc_mmc.c
diff -u /dev/null src/sys/dev/ic/dwc_mmc.c:1.1
--- /dev/null Sat Dec 27 01:18:49 2014
+++ src/sys/dev/ic/dwc_mmc.c Sat Dec 27 01:18:48 2014
@@ -0,0 +1,582 @@
+/* $NetBSD: dwc_mmc.c,v 1.1 2014/12/27 01:18:48 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2014 Jared D. McNeill <jmcne...@invisible.ca>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "opt_dwc_mmc.h"
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: dwc_mmc.c,v 1.1 2014/12/27 01:18:48 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/intr.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+
+#include <dev/sdmmc/sdmmcvar.h>
+#include <dev/sdmmc/sdmmcchip.h>
+#include <dev/sdmmc/sdmmc_ioreg.h>
+
+#include <dev/ic/dwc_mmc_reg.h>
+#include <dev/ic/dwc_mmc_var.h>
+
+static int dwc_mmc_host_reset(sdmmc_chipset_handle_t);
+static uint32_t dwc_mmc_host_ocr(sdmmc_chipset_handle_t);
+static int dwc_mmc_host_maxblklen(sdmmc_chipset_handle_t);
+static int dwc_mmc_card_detect(sdmmc_chipset_handle_t);
+static int dwc_mmc_write_protect(sdmmc_chipset_handle_t);
+static int dwc_mmc_bus_power(sdmmc_chipset_handle_t, uint32_t);
+static int dwc_mmc_bus_clock(sdmmc_chipset_handle_t, int);
+static int dwc_mmc_bus_width(sdmmc_chipset_handle_t, int);
+static int dwc_mmc_bus_rod(sdmmc_chipset_handle_t, int);
+static void dwc_mmc_exec_command(sdmmc_chipset_handle_t,
+ struct sdmmc_command *);
+static void dwc_mmc_card_enable_intr(sdmmc_chipset_handle_t, int);
+static void dwc_mmc_card_intr_ack(sdmmc_chipset_handle_t);
+
+static int dwc_mmc_set_clock(struct dwc_mmc_softc *, u_int);
+static int dwc_mmc_update_clock(struct dwc_mmc_softc *);
+static int dwc_mmc_wait_rint(struct dwc_mmc_softc *, uint32_t, int);
+static int dwc_mmc_pio_wait(struct dwc_mmc_softc *,
+ struct sdmmc_command *);
+static int dwc_mmc_pio_transfer(struct dwc_mmc_softc *,
+ struct sdmmc_command *);
+
+void dwc_mmc_dump_regs(void);
+
+static struct sdmmc_chip_functions dwc_mmc_chip_functions = {
+ .host_reset = dwc_mmc_host_reset,
+ .host_ocr = dwc_mmc_host_ocr,
+ .host_maxblklen = dwc_mmc_host_maxblklen,
+ .card_detect = dwc_mmc_card_detect,
+ .write_protect = dwc_mmc_write_protect,
+ .bus_power = dwc_mmc_bus_power,
+ .bus_clock = dwc_mmc_bus_clock,
+ .bus_width = dwc_mmc_bus_width,
+ .bus_rod = dwc_mmc_bus_rod,
+ .exec_command = dwc_mmc_exec_command,
+ .card_enable_intr = dwc_mmc_card_enable_intr,
+ .card_intr_ack = dwc_mmc_card_intr_ack,
+};
+
+#define MMC_WRITE(sc, reg, val) \
+ bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val))
+#define MMC_READ(sc, reg) \
+ bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg))
+
+void
+dwc_mmc_init(struct dwc_mmc_softc *sc)
+{
+ struct sdmmcbus_attach_args saa;
+
+ mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_BIO);
+ cv_init(&sc->sc_intr_cv, "dwcmmcirq");
+
+ dwc_mmc_host_reset(sc);
+ dwc_mmc_bus_width(sc, 1);
+ dwc_mmc_bus_clock(sc, 400);
+
+ memset(&saa, 0, sizeof(saa));
+ saa.saa_busname = "sdmmc";
+ saa.saa_sct = &dwc_mmc_chip_functions;
+ saa.saa_sch = sc;
+ saa.saa_clkmin = 400;
+ saa.saa_clkmax = 25000;
+ saa.saa_caps = SMC_CAPS_4BIT_MODE|
+ SMC_CAPS_8BIT_MODE|
+ SMC_CAPS_SD_HIGHSPEED|
+ SMC_CAPS_MMC_HIGHSPEED|
+ SMC_CAPS_AUTO_STOP;
+#if notyet
+ saa.saa_dmat = sc->sc_dmat;
+ saa.saa_caps |= SMC_CAPS_DMA|
+ SMC_CAPS_MULTI_SEG_DMA;
+#endif
+
+ sc->sc_sdmmc_dev = config_found(sc->sc_dev, &saa, NULL);
+}
+
+int
+dwc_mmc_intr(void *priv)
+{
+ struct dwc_mmc_softc *sc = priv;
+ uint32_t mint, rint;
+
+ mutex_enter(&sc->sc_intr_lock);
+ rint = MMC_READ(sc, DWC_MMC_RINTSTS_REG);
+ mint = MMC_READ(sc, DWC_MMC_MINTSTS_REG);
+ if (!rint && !mint) {
+ mutex_exit(&sc->sc_intr_lock);
+ return 0;
+ }
+ MMC_WRITE(sc, DWC_MMC_RINTSTS_REG, rint);
+ MMC_WRITE(sc, DWC_MMC_MINTSTS_REG, mint);
+
+#ifdef DWC_MMC_DEBUG
+ device_printf(sc->sc_dev, "mint %#x rint %#x\n", mint, rint);
+#endif
+
+ if (rint & DWC_MMC_INT_CARDDET) {
+ rint &= ~DWC_MMC_INT_CARDDET;
+ if (sc->sc_sdmmc_dev) {
+ sdmmc_needs_discover(sc->sc_sdmmc_dev);
+ }
+ }
+
+ if (rint) {
+ sc->sc_intr_rint |= rint;
+ cv_broadcast(&sc->sc_intr_cv);
+ }
+
+ mutex_exit(&sc->sc_intr_lock);
+
+ return 1;
+}
+
+static int
+dwc_mmc_set_clock(struct dwc_mmc_softc *sc, u_int freq)
+{
+ u_int pll_freq = sc->sc_clock_freq / 1000;
+ u_int n = howmany(pll_freq, freq) >> 1;
+
+#ifdef DWC_MMC_DEBUG
+ device_printf(sc->sc_dev, "%s: n=%u freq=%u\n",
+ __func__, n, n ? pll_freq / (2 * n) : pll_freq);
+#endif
+
+ MMC_WRITE(sc, DWC_MMC_CLKDIV_REG,
+ __SHIFTIN(n, DWC_MMC_CLKDIV_CLK_DIVIDER0));
+
+ return dwc_mmc_update_clock(sc);
+}
+
+static int
+dwc_mmc_update_clock(struct dwc_mmc_softc *sc)
+{
+ uint32_t cmd;
+ int retry;
+
+ cmd = DWC_MMC_CMD_START_CMD |
+ DWC_MMC_CMD_UPDATE_CLOCK_REGS_ONLY |
+ DWC_MMC_CMD_WAIT_PRVDATA_COMPLETE;
+
+ if (sc->sc_flags & DWC_MMC_F_USE_HOLD_REG)
+ cmd |= DWC_MMC_CMD_USE_HOLD_REG;
+
+ MMC_WRITE(sc, DWC_MMC_CMD_REG, cmd);
+ retry = 0xfffff;
+ while (--retry > 0) {
+ cmd = MMC_READ(sc, DWC_MMC_CMD_REG);
+ if ((cmd & DWC_MMC_CMD_START_CMD) == 0)
+ break;
+ delay(10);
+ }
+
+ if (retry == 0) {
+ device_printf(sc->sc_dev, "timeout updating clock\n");
+ return ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int
+dwc_mmc_wait_rint(struct dwc_mmc_softc *sc, uint32_t mask, int timeout)
+{
+ int retry, error;
+
+ KASSERT(mutex_owned(&sc->sc_intr_lock));
+
+ if (sc->sc_intr_rint & mask)
+ return 0;
+
+ retry = timeout / hz;
+
+ while (retry > 0) {
+ error = cv_timedwait(&sc->sc_intr_cv, &sc->sc_intr_lock, hz);
+ if (error && error != EWOULDBLOCK)
+ return error;
+ if (sc->sc_intr_rint & mask)
+ return 0;
+ --retry;
+ }
+
+ return ETIMEDOUT;
+}
+
+static int
+dwc_mmc_pio_wait(struct dwc_mmc_softc *sc, struct sdmmc_command *cmd)
+{
+ int retry = 0xfffff;
+ uint32_t bit = (cmd->c_flags & SCF_CMD_READ) ?
+ DWC_MMC_STATUS_FIFO_EMPTY : DWC_MMC_STATUS_FIFO_FULL;
+
+ while (--retry > 0) {
+ uint32_t status = MMC_READ(sc, DWC_MMC_STATUS_REG);
+ if (!(status & bit))
+ return 0;
+ delay(10);
+ }
+
+#ifdef DWC_MMC_DEBUG
+ device_printf(sc->sc_dev, "%s: timed out\n", __func__);
+#endif
+
+ return ETIMEDOUT;
+}
+
+static int
+dwc_mmc_pio_transfer(struct dwc_mmc_softc *sc, struct sdmmc_command *cmd)
+{
+ uint32_t *datap = (uint32_t *)cmd->c_data;
+ int i;
+
+ for (i = 0; i < (cmd->c_resid >> 2); i++) {
+ if (dwc_mmc_pio_wait(sc, cmd))
+ return ETIMEDOUT;
+ if (cmd->c_flags & SCF_CMD_READ) {
+ datap[i] = MMC_READ(sc, DWC_MMC_FIFO_BASE_REG);
+ } else {
+ MMC_WRITE(sc, DWC_MMC_FIFO_BASE_REG, datap[i]);
+ }
+ }
+
+ return 0;
+}
+
+static int
+dwc_mmc_host_reset(sdmmc_chipset_handle_t sch)
+{
+ struct dwc_mmc_softc *sc = sch;
+ int retry = 1000;
+ uint32_t ctrl, fifoth;
+ uint32_t rx_wmark, tx_wmark;
+
+ MMC_WRITE(sc, DWC_MMC_PWREN_REG, DWC_MMC_PWREN_POWER_ENABLE);
+
+ MMC_WRITE(sc, DWC_MMC_CTRL_REG,
+ MMC_READ(sc, DWC_MMC_CTRL_REG) | DWC_MMC_CTRL_CONTROLLER_RESET);
+ while (--retry > 0) {
+ ctrl = MMC_READ(sc, DWC_MMC_CTRL_REG);
+ if (ctrl & DWC_MMC_CTRL_CONTROLLER_RESET)
+ break;
+ delay(100);
+ }
+
+ MMC_WRITE(sc, DWC_MMC_TMOUT_REG, 0xffffffff);
+ MMC_WRITE(sc, DWC_MMC_RINTSTS_REG, 0xffffffff);
+
+ MMC_WRITE(sc, DWC_MMC_INTMASK_REG,
+ DWC_MMC_INT_CD | DWC_MMC_INT_ACD | DWC_MMC_INT_DTO |
+ DWC_MMC_INT_ERROR | DWC_MMC_INT_CARDDET);
+
+ rx_wmark = (sc->sc_fifo_depth / 2) - 1;
+ tx_wmark = sc->sc_fifo_depth / 2;
+ fifoth = __SHIFTIN(DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_16,
+ DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE);
+ fifoth |= __SHIFTIN(rx_wmark, DWC_MMC_FIFOTH_RX_WMARK);
+ fifoth |= __SHIFTIN(tx_wmark, DWC_MMC_FIFOTH_TX_WMARK);
+ MMC_WRITE(sc, DWC_MMC_FIFOTH_REG, fifoth);
+
+ ctrl = MMC_READ(sc, DWC_MMC_CTRL_REG);
+ ctrl |= DWC_MMC_CTRL_INT_ENABLE;
+ MMC_WRITE(sc, DWC_MMC_CTRL_REG, ctrl);
+
+ return 0;
+}
+
+static uint32_t
+dwc_mmc_host_ocr(sdmmc_chipset_handle_t sch)
+{
+ return MMC_OCR_3_2V_3_3V | MMC_OCR_3_3V_3_4V;
+}
+
+static int
+dwc_mmc_host_maxblklen(sdmmc_chipset_handle_t sch)
+{
+ return 32768;
+}
+
+static int
+dwc_mmc_card_detect(sdmmc_chipset_handle_t sch)
+{
+ struct dwc_mmc_softc *sc = sch;
+ uint32_t cdetect;
+
+ cdetect = MMC_READ(sc, DWC_MMC_CDETECT_REG);
+ return !!(cdetect & DWC_MMC_CDETECT_CARD_DETECT_N);
+}
+
+static int
+dwc_mmc_write_protect(sdmmc_chipset_handle_t sch)
+{
+ struct dwc_mmc_softc *sc = sch;
+ uint32_t wrtprt;
+
+ wrtprt = MMC_READ(sc, DWC_MMC_WRTPRT_REG);
+ return !!(wrtprt & DWC_MMC_WRTPRT_WRITE_PROTECT);
+}
+
+static int
+dwc_mmc_bus_power(sdmmc_chipset_handle_t sch, uint32_t ocr)
+{
+ return 0;
+}
+
+static int
+dwc_mmc_bus_clock(sdmmc_chipset_handle_t sch, int freq)
+{
+ struct dwc_mmc_softc *sc = sch;
+ uint32_t clkdiv, clkena;
+
+#ifdef DWC_MMC_DEBUG
+ device_printf(sc->sc_dev, "%s: freq %d\n", __func__, freq);
+#endif
+
+ clkena = MMC_READ(sc, DWC_MMC_CLKENA_REG);
+ if (clkena & DWC_MMC_CLKENA_CCLK_ENABLE) {
+ clkena &= ~DWC_MMC_CLKENA_CCLK_ENABLE;
+ MMC_WRITE(sc, DWC_MMC_CLKENA_REG, clkena);
+ if (dwc_mmc_update_clock(sc) != 0)
+ return ETIMEDOUT;
+ }
+
+ if (freq) {
+ clkdiv = MMC_READ(sc, DWC_MMC_CLKDIV_REG);
+ clkdiv &= ~DWC_MMC_CLKDIV_CLK_DIVIDER0;
+ if (dwc_mmc_update_clock(sc) != 0)
+ return ETIMEDOUT;
+
+ if (dwc_mmc_set_clock(sc, freq) != 0)
+ return EIO;
+
+ clkena |= DWC_MMC_CLKENA_CCLK_ENABLE;
+ clkena |= DWC_MMC_CLKENA_CCLK_LOW_POWER; /* XXX SD/MMC only */
+ MMC_WRITE(sc, DWC_MMC_CLKENA_REG, clkena);
+ if (dwc_mmc_update_clock(sc) != 0)
+ return ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int
+dwc_mmc_bus_width(sdmmc_chipset_handle_t sch, int width)
+{
+ struct dwc_mmc_softc *sc = sch;
+ uint32_t ctype;
+
+ switch (width) {
+ case 1:
+ ctype = DWC_MMC_CTYPE_CARD_WIDTH_1;
+ break;
+ case 4:
+ ctype = DWC_MMC_CTYPE_CARD_WIDTH_4;
+ break;
+ case 8:
+ ctype = DWC_MMC_CTYPE_CARD_WIDTH_8;
+ break;
+ default:
+ return EINVAL;
+ }
+
+ MMC_WRITE(sc, DWC_MMC_CTYPE_REG, ctype);
+
+ return 0;
+}
+
+static int
+dwc_mmc_bus_rod(sdmmc_chipset_handle_t sch, int on)
+{
+ return ENOTSUP;
+}
+
+static void
+dwc_mmc_exec_command(sdmmc_chipset_handle_t sch, struct sdmmc_command *cmd)
+{
+ struct dwc_mmc_softc *sc = sch;
+ uint32_t cmdval = DWC_MMC_CMD_START_CMD;
+ uint32_t ctrl;
+
+ if (sc->sc_flags & DWC_MMC_F_USE_HOLD_REG)
+ cmdval |= DWC_MMC_CMD_USE_HOLD_REG;
+
+ mutex_enter(&sc->sc_intr_lock);
+ if (cmd->c_opcode == 0)
+ cmdval |= DWC_MMC_CMD_SEND_INIT;
+ if (cmd->c_flags & SCF_RSP_PRESENT)
+ cmdval |= DWC_MMC_CMD_RESP_EXPECTED;
+ if (cmd->c_flags & SCF_RSP_136)
+ cmdval |= DWC_MMC_CMD_RESP_LEN;
+ if (cmd->c_flags & SCF_RSP_CRC)
+ cmdval |= DWC_MMC_CMD_CHECK_RESP_CRC;
+
+ if (cmd->c_datalen > 0) {
+ unsigned int nblks;
+
+ cmdval |= DWC_MMC_CMD_DATA_EXPECTED;
+ cmdval |= DWC_MMC_CMD_WAIT_PRVDATA_COMPLETE;
+ if (!ISSET(cmd->c_flags, SCF_CMD_READ)) {
+ cmdval |= DWC_MMC_CMD_WR;
+ }
+
+ nblks = cmd->c_datalen / cmd->c_blklen;
+ if (nblks == 0 || (cmd->c_datalen % cmd->c_blklen) != 0)
+ ++nblks;
+
+ if (nblks > 1) {
+ cmdval |= DWC_MMC_CMD_SEND_AUTO_STOP;
+ }
+
+ MMC_WRITE(sc, DWC_MMC_BLKSIZ_REG, cmd->c_blklen);
+ MMC_WRITE(sc, DWC_MMC_BYTCNT_REG, nblks * cmd->c_blklen);
+ }
+
+ sc->sc_intr_rint = 0;
+
+ MMC_WRITE(sc, DWC_MMC_CMDARG_REG, cmd->c_arg);
+
+ cmd->c_resid = cmd->c_datalen;
+ MMC_WRITE(sc, DWC_MMC_CMD_REG, cmdval | cmd->c_opcode);
+ if (cmd->c_datalen > 0) {
+ cmd->c_error = dwc_mmc_pio_transfer(sc, cmd);
+ if (cmd->c_error) {
+ goto done;
+ }
+ }
+
+ cmd->c_error = dwc_mmc_wait_rint(sc,
+ DWC_MMC_INT_ERROR|DWC_MMC_INT_CD, hz * 10);
+ if (cmd->c_error == 0 && (sc->sc_intr_rint & DWC_MMC_INT_ERROR)) {
+#ifdef DWC_MMC_DEBUG
+ device_printf(sc->sc_dev, "%s: rint %#x\n", __func__,
+ sc->sc_intr_rint);
+#endif
+ if (sc->sc_intr_rint & DWC_MMC_INT_RTO) {
+ cmd->c_error = ETIMEDOUT;
+ } else {
+ cmd->c_error = EIO;
+ }
+ }
+ if (cmd->c_error) {
+ goto done;
+ }
+
+ if (cmd->c_datalen > 0) {
+ cmd->c_error = dwc_mmc_wait_rint(sc,
+ DWC_MMC_INT_ERROR|DWC_MMC_INT_ACD|DWC_MMC_INT_DTO,
+ hz * 10);
+ if (cmd->c_error == 0 &&
+ (sc->sc_intr_rint & DWC_MMC_INT_ERROR)) {
+#ifdef DWC_MMC_DEBUG
+ device_printf(sc->sc_dev, "%s: rint2 %#x\n", __func__,
+ sc->sc_intr_rint);
+#endif
+ cmd->c_error = ETIMEDOUT;
+ }
+ if (cmd->c_error) {
+ goto done;
+ }
+ }
+
+ if (cmd->c_flags & SCF_RSP_PRESENT) {
+ if (cmd->c_flags & SCF_RSP_136) {
+ cmd->c_resp[0] = MMC_READ(sc, DWC_MMC_RESP0_REG);
+ cmd->c_resp[1] = MMC_READ(sc, DWC_MMC_RESP1_REG);
+ cmd->c_resp[2] = MMC_READ(sc, DWC_MMC_RESP2_REG);
+ cmd->c_resp[3] = MMC_READ(sc, DWC_MMC_RESP3_REG);
+ if (cmd->c_flags & SCF_RSP_CRC) {
+ cmd->c_resp[0] = (cmd->c_resp[0] >> 8) |
+ (cmd->c_resp[1] << 24);
+ cmd->c_resp[1] = (cmd->c_resp[1] >> 8) |
+ (cmd->c_resp[2] << 24);
+ cmd->c_resp[2] = (cmd->c_resp[2] >> 8) |
+ (cmd->c_resp[3] << 24);
+ cmd->c_resp[3] = (cmd->c_resp[3] >> 8);
+ }
+ } else {
+ cmd->c_resp[0] = MMC_READ(sc, DWC_MMC_RESP0_REG);
+ }
+ }
+
+done:
+ cmd->c_flags |= SCF_ITSDONE;
+ mutex_exit(&sc->sc_intr_lock);
+
+ ctrl = MMC_READ(sc, DWC_MMC_CTRL_REG);
+ ctrl |= DWC_MMC_CTRL_FIFO_RESET;
+ MMC_WRITE(sc, DWC_MMC_CTRL_REG, ctrl);
+}
+
+static void
+dwc_mmc_card_enable_intr(sdmmc_chipset_handle_t sch, int enable)
+{
+}
+
+static void
+dwc_mmc_card_intr_ack(sdmmc_chipset_handle_t sch)
+{
+}
+
+void
+dwc_mmc_dump_regs(void)
+{
+ static const struct {
+ const char *name;
+ unsigned int reg;
+ } regs[] = {
+ { "CTRL", DWC_MMC_CTRL_REG },
+ { "PWREN", DWC_MMC_PWREN_REG },
+ { "CLKDIV", DWC_MMC_CLKDIV_REG },
+ { "CLKENA", DWC_MMC_CLKENA_REG },
+ { "TMOUT", DWC_MMC_TMOUT_REG },
+ { "CTYPE", DWC_MMC_CTYPE_REG },
+ { "BLKSIZ", DWC_MMC_BLKSIZ_REG },
+ { "BYTCNT", DWC_MMC_BYTCNT_REG },
+ { "INTMASK", DWC_MMC_INTMASK_REG },
+ { "MINTSTS", DWC_MMC_MINTSTS_REG },
+ { "RINTSTS", DWC_MMC_RINTSTS_REG },
+ { "STATUS", DWC_MMC_STATUS_REG },
+ { "CDETECT", DWC_MMC_CDETECT_REG },
+ { "WRTPRT", DWC_MMC_WRTPRT_REG },
+ { "USRID", DWC_MMC_USRID_REG },
+ { "VERID", DWC_MMC_VERID_REG },
+ { "RST", DWC_MMC_RST_REG },
+ { "BACK_END_POWER", DWC_MMC_BACK_END_POWER_REG },
+ };
+ device_t self = device_find_by_driver_unit("dwcmmc", 0);
+ if (self == NULL)
+ return;
+ struct dwc_mmc_softc *sc = device_private(self);
+ int i;
+
+ for (i = 0; i < __arraycount(regs); i++) {
+ device_printf(sc->sc_dev, "%s: %#x\n", regs[i].name,
+ MMC_READ(sc, regs[i].reg));
+ }
+}
Index: src/sys/dev/ic/dwc_mmc_reg.h
diff -u /dev/null src/sys/dev/ic/dwc_mmc_reg.h:1.1
--- /dev/null Sat Dec 27 01:18:49 2014
+++ src/sys/dev/ic/dwc_mmc_reg.h Sat Dec 27 01:18:48 2014
@@ -0,0 +1,172 @@
+/* $NetBSD: dwc_mmc_reg.h,v 1.1 2014/12/27 01:18:48 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2014 Jared D. McNeill <jmcne...@invisible.ca>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _DWC_MMC_REG_H
+#define _DWC_MMC_REG_H
+
+#define DWC_MMC_CTRL_REG 0x0000
+#define DWC_MMC_PWREN_REG 0x0004
+#define DWC_MMC_CLKDIV_REG 0x0008
+#define DWC_MMC_CLKENA_REG 0x0010
+#define DWC_MMC_TMOUT_REG 0x0014
+#define DWC_MMC_CTYPE_REG 0x0018
+#define DWC_MMC_BLKSIZ_REG 0x001c
+#define DWC_MMC_BYTCNT_REG 0x0020
+#define DWC_MMC_INTMASK_REG 0x0024
+#define DWC_MMC_CMDARG_REG 0x0028
+#define DWC_MMC_CMD_REG 0x002c
+#define DWC_MMC_RESP0_REG 0x0030
+#define DWC_MMC_RESP1_REG 0x0034
+#define DWC_MMC_RESP2_REG 0x0038
+#define DWC_MMC_RESP3_REG 0x003c
+#define DWC_MMC_MINTSTS_REG 0x0040
+#define DWC_MMC_RINTSTS_REG 0x0044
+#define DWC_MMC_STATUS_REG 0x0048
+#define DWC_MMC_FIFOTH_REG 0x004c
+#define DWC_MMC_CDETECT_REG 0x0050
+#define DWC_MMC_WRTPRT_REG 0x0054
+#define DWC_MMC_TCBCNT_REG 0x005c
+#define DWC_MMC_TBBCNT_REG 0x0060
+#define DWC_MMC_DEBNCE_REG 0x0064
+#define DWC_MMC_USRID_REG 0x0068
+#define DWC_MMC_VERID_REG 0x006c
+#define DWC_MMC_UHS_REG 0x0074
+#define DWC_MMC_RST_REG 0x0078
+#define DWC_MMC_CARDTHRCTL_REG 0x0100
+#define DWC_MMC_BACK_END_POWER_REG 0x0104
+#define DWC_MMC_FIFO_BASE_REG 0x0200
+
+#define DWC_MMC_CTRL_ABORT_READ_DATA __BIT(8)
+#define DWC_MMC_CTRL_SEND_IRQ_RESPONSE __BIT(7)
+#define DWC_MMC_CTRL_READ_WAIT __BIT(6)
+#define DWC_MMC_CTRL_DMA_ENABLE __BIT(5)
+#define DWC_MMC_CTRL_INT_ENABLE __BIT(4)
+#define DWC_MMC_CTRL_DMA_RESET __BIT(2)
+#define DWC_MMC_CTRL_FIFO_RESET __BIT(1)
+#define DWC_MMC_CTRL_CONTROLLER_RESET __BIT(0)
+
+#define DWC_MMC_PWREN_POWER_ENABLE __BIT(0)
+
+#define DWC_MMC_CLKDIV_CLK_DIVIDER0 __BITS(7,0)
+
+#define DWC_MMC_CLKENA_CCLK_LOW_POWER __BIT(16)
+#define DWC_MMC_CLKENA_CCLK_ENABLE __BIT(0)
+
+#define DWC_MMC_TMOUT_DATA_TIMEOUT __BITS(31,8)
+#define DWC_MMC_TMOUT_RESPONSE_TIMEOUT __BITS(7,0)
+
+#define DWC_MMC_CTYPE_CARD_WIDTH_8 __BIT(16)
+#define DWC_MMC_CTYPE_CARD_WIDTH_4 __BIT(0)
+#define DWC_MMC_CTYPE_CARD_WIDTH_1 0
+
+#define DWC_MMC_INT_SDIO_INT __BIT(24)
+#define DWC_MMC_INT_NEW_INT __BIT(16)
+#define DWC_MMC_INT_MASK __BITS(15,0)
+#define DWC_MMC_INT_EBE __BIT(15)
+#define DWC_MMC_INT_ACD __BIT(14)
+#define DWC_MMC_INT_SBE __BIT(13)
+#define DWC_MMC_INT_HLE __BIT(12)
+#define DWC_MMC_INT_FRUN __BIT(11)
+#define DWC_MMC_INT_HTO __BIT(10)
+#define DWC_MMC_INT_DRTO __BIT(9)
+#define DWC_MMC_INT_RTO __BIT(8)
+#define DWC_MMC_INT_DCRC __BIT(7)
+#define DWC_MMC_INT_RCRC __BIT(6)
+#define DWC_MMC_INT_RXDR __BIT(5)
+#define DWC_MMC_INT_TXDR __BIT(4)
+#define DWC_MMC_INT_DTO __BIT(3)
+#define DWC_MMC_INT_CD __BIT(2)
+#define DWC_MMC_INT_RE __BIT(1)
+#define DWC_MMC_INT_CARDDET __BIT(0)
+#define DWC_MMC_INT_ERROR \
+ (DWC_MMC_INT_RE | DWC_MMC_INT_RCRC | DWC_MMC_INT_DCRC | \
+ DWC_MMC_INT_RTO | DWC_MMC_INT_DRTO | DWC_MMC_INT_HTO | \
+ DWC_MMC_INT_HLE | DWC_MMC_INT_SBE | DWC_MMC_INT_EBE)
+
+#define DWC_MMC_CMD_START_CMD __BIT(31)
+#define DWC_MMC_CMD_USE_HOLD_REG __BIT(29)
+#define DWC_MMC_CMD_VOLT_SWITCH __BIT(28)
+#define DWC_MMC_CMD_BOOT_MODE __BIT(27)
+#define DWC_MMC_CMD_DISABLE_BOOT __BIT(26)
+#define DWC_MMC_CMD_EXPECT_BOOT_ACK __BIT(25)
+#define DWC_MMC_CMD_ENABLE_BOOT __BIT(24)
+#define DWC_MMC_CMD_UPDATE_CLOCK_REGS_ONLY __BIT(21)
+#define DWC_MMC_CMD_SEND_INIT __BIT(15)
+#define DWC_MMC_CMD_STOP_ABORT_CMD __BIT(14)
+#define DWC_MMC_CMD_WAIT_PRVDATA_COMPLETE __BIT(13)
+#define DWC_MMC_CMD_SEND_AUTO_STOP __BIT(12)
+#define DWC_MMC_CMD_TRANSFER_MODE __BIT(11)
+#define DWC_MMC_CMD_WR __BIT(10)
+#define DWC_MMC_CMD_DATA_EXPECTED __BIT(9)
+#define DWC_MMC_CMD_CHECK_RESP_CRC __BIT(8)
+#define DWC_MMC_CMD_RESP_LEN __BIT(7)
+#define DWC_MMC_CMD_RESP_EXPECTED __BIT(6)
+#define DWC_MMC_CMD_INDEX __BITS(5,0)
+
+#define DWC_MMC_STATUS_DMA_REQ __BIT(31)
+#define DWC_MMC_STATUS_DMA_ACK __BIT(30)
+#define DWC_MMC_STATUS_FIFO_COUNT __BITS(29,17)
+#define DWC_MMC_STATUS_RESP_INDEX __BITS(16,11)
+#define DWC_MMC_STATUS_DATA_STATE_MC_BUSY __BIT(10)
+#define DWC_MMC_STATUS_DATA_BUSY __BIT(9)
+#define DWC_MMC_STATUS_DATA_3_STATUS __BIT(8)
+#define DWC_MMC_STATUS_COMMAND_FSM_STATES __BITS(7,4)
+#define DWC_MMC_STATUS_FIFO_FULL __BIT(3)
+#define DWC_MMC_STATUS_FIFO_EMPTY __BIT(2)
+#define DWC_MMC_STATUS_FIFO_TX_WATERMARK __BIT(1)
+#define DWC_MMC_STATUS_FIFO_RX_WATERMARK __BIT(0)
+
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE __BITS(30,28)
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_1 0
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_4 1
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_8 2
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_16 3
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_32 4
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_64 5
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_128 6
+#define DWC_MMC_FIFOTH_DMA_MULTIPLE_TXN_SIZE_256 7
+#define DWC_MMC_FIFOTH_RX_WMARK __BITS(27,16)
+#define DWC_MMC_FIFOTH_TX_WMARK __BITS(11,0)
+
+#define DWC_MMC_CDETECT_CARD_DETECT_N __BIT(0)
+
+#define DWC_MMC_WRTPRT_WRITE_PROTECT __BIT(0)
+
+#define DWC_MMC_DEBNCE_DEBOUNCE_COUNT __BITS(23,0)
+
+#define DWC_MMC_UHS_DDR __BIT(16)
+#define DWC_MMC_UHS_VOLT __BIT(0)
+
+#define DWC_MMC_RST_CARD_RESET __BIT(0)
+
+#define DWC_MMC_CARDTHRCTL_CARDRDTHRESHOLD __BITS(27,16)
+#define DWC_MMC_CARDTHRCTL_CARDRDTHREN __BIT(0)
+
+#define DWC_MMC_BACK_END_POWER_ENABLE __BIT(0)
+
+#endif /* !_DWC_MMC_REG_H */
Index: src/sys/dev/ic/dwc_mmc_var.h
diff -u /dev/null src/sys/dev/ic/dwc_mmc_var.h:1.1
--- /dev/null Sat Dec 27 01:18:49 2014
+++ src/sys/dev/ic/dwc_mmc_var.h Sat Dec 27 01:18:48 2014
@@ -0,0 +1,53 @@
+/* $NetBSD: dwc_mmc_var.h,v 1.1 2014/12/27 01:18:48 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2014 Jared D. McNeill <jmcne...@invisible.ca>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _DWC_MMC_VAR_H
+#define _DWC_MMC_VAR_H
+
+struct dwc_mmc_softc {
+ device_t sc_dev;
+ bus_space_tag_t sc_bst;
+ bus_space_handle_t sc_bsh;
+ bus_dma_tag_t sc_dmat;
+ void *sc_ih;
+ unsigned int sc_clock_freq;
+ unsigned int sc_fifo_depth;
+ uint32_t sc_flags;
+#define DWC_MMC_F_USE_HOLD_REG 0x0001
+
+ device_t sc_sdmmc_dev;
+ kmutex_t sc_intr_lock;
+ kcondvar_t sc_intr_cv;
+
+ uint32_t sc_intr_rint;
+};
+
+void dwc_mmc_init(struct dwc_mmc_softc *);
+int dwc_mmc_intr(void *);
+
+#endif /* !_DWC_MMC_VAR_H */
