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-rw-r--r--hw/sd/Makefile.objs4
-rw-r--r--hw/sd/milkymist-memcard.c303
-rw-r--r--hw/sd/omap_mmc.c641
-rw-r--r--hw/sd/pxa2xx_mmci.c553
4 files changed, 1501 insertions, 0 deletions
diff --git a/hw/sd/Makefile.objs b/hw/sd/Makefile.objs
index 8acce02..f1aed83 100644
--- a/hw/sd/Makefile.objs
+++ b/hw/sd/Makefile.objs
@@ -2,3 +2,7 @@ common-obj-$(CONFIG_PL181) += pl181.o
common-obj-$(CONFIG_SSI_SD) += ssi-sd.o
common-obj-$(CONFIG_SD) += sd.o
common-obj-$(CONFIG_SDHCI) += sdhci.o
+
+obj-$(CONFIG_MILKYMIST) += milkymist-memcard.o
+obj-$(CONFIG_OMAP) += omap_mmc.o
+obj-$(CONFIG_PXA2XX) += pxa2xx_mmci.o
diff --git a/hw/sd/milkymist-memcard.c b/hw/sd/milkymist-memcard.c
new file mode 100644
index 0000000..d5944bc
--- /dev/null
+++ b/hw/sd/milkymist-memcard.c
@@ -0,0 +1,303 @@
+/*
+ * QEMU model of the Milkymist SD Card Controller.
+ *
+ * Copyright (c) 2010 Michael Walle <michael@walle.cc>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * Specification available at:
+ * http://www.milkymist.org/socdoc/memcard.pdf
+ */
+
+#include "hw/hw.h"
+#include "hw/sysbus.h"
+#include "sysemu/sysemu.h"
+#include "trace.h"
+#include "qemu/error-report.h"
+#include "sysemu/blockdev.h"
+#include "hw/sd.h"
+
+enum {
+ ENABLE_CMD_TX = (1<<0),
+ ENABLE_CMD_RX = (1<<1),
+ ENABLE_DAT_TX = (1<<2),
+ ENABLE_DAT_RX = (1<<3),
+};
+
+enum {
+ PENDING_CMD_TX = (1<<0),
+ PENDING_CMD_RX = (1<<1),
+ PENDING_DAT_TX = (1<<2),
+ PENDING_DAT_RX = (1<<3),
+};
+
+enum {
+ START_CMD_TX = (1<<0),
+ START_DAT_RX = (1<<1),
+};
+
+enum {
+ R_CLK2XDIV = 0,
+ R_ENABLE,
+ R_PENDING,
+ R_START,
+ R_CMD,
+ R_DAT,
+ R_MAX
+};
+
+struct MilkymistMemcardState {
+ SysBusDevice busdev;
+ MemoryRegion regs_region;
+ SDState *card;
+
+ int command_write_ptr;
+ int response_read_ptr;
+ int response_len;
+ int ignore_next_cmd;
+ int enabled;
+ uint8_t command[6];
+ uint8_t response[17];
+ uint32_t regs[R_MAX];
+};
+typedef struct MilkymistMemcardState MilkymistMemcardState;
+
+static void update_pending_bits(MilkymistMemcardState *s)
+{
+ /* transmits are instantaneous, thus tx pending bits are never set */
+ s->regs[R_PENDING] = 0;
+ /* if rx is enabled the corresponding pending bits are always set */
+ if (s->regs[R_ENABLE] & ENABLE_CMD_RX) {
+ s->regs[R_PENDING] |= PENDING_CMD_RX;
+ }
+ if (s->regs[R_ENABLE] & ENABLE_DAT_RX) {
+ s->regs[R_PENDING] |= PENDING_DAT_RX;
+ }
+}
+
+static void memcard_sd_command(MilkymistMemcardState *s)
+{
+ SDRequest req;
+
+ req.cmd = s->command[0] & 0x3f;
+ req.arg = (s->command[1] << 24) | (s->command[2] << 16)
+ | (s->command[3] << 8) | s->command[4];
+ req.crc = s->command[5];
+
+ s->response[0] = req.cmd;
+ s->response_len = sd_do_command(s->card, &req, s->response+1);
+ s->response_read_ptr = 0;
+
+ if (s->response_len == 16) {
+ /* R2 response */
+ s->response[0] = 0x3f;
+ s->response_len += 1;
+ } else if (s->response_len == 4) {
+ /* no crc calculation, insert dummy byte */
+ s->response[5] = 0;
+ s->response_len += 2;
+ }
+
+ if (req.cmd == 0) {
+ /* next write is a dummy byte to clock the initialization of the sd
+ * card */
+ s->ignore_next_cmd = 1;
+ }
+}
+
+static uint64_t memcard_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ MilkymistMemcardState *s = opaque;
+ uint32_t r = 0;
+
+ addr >>= 2;
+ switch (addr) {
+ case R_CMD:
+ if (!s->enabled) {
+ r = 0xff;
+ } else {
+ r = s->response[s->response_read_ptr++];
+ if (s->response_read_ptr > s->response_len) {
+ error_report("milkymist_memcard: "
+ "read more cmd bytes than available. Clipping.");
+ s->response_read_ptr = 0;
+ }
+ }
+ break;
+ case R_DAT:
+ if (!s->enabled) {
+ r = 0xffffffff;
+ } else {
+ r = 0;
+ r |= sd_read_data(s->card) << 24;
+ r |= sd_read_data(s->card) << 16;
+ r |= sd_read_data(s->card) << 8;
+ r |= sd_read_data(s->card);
+ }
+ break;
+ case R_CLK2XDIV:
+ case R_ENABLE:
+ case R_PENDING:
+ case R_START:
+ r = s->regs[addr];
+ break;
+
+ default:
+ error_report("milkymist_memcard: read access to unknown register 0x"
+ TARGET_FMT_plx, addr << 2);
+ break;
+ }
+
+ trace_milkymist_memcard_memory_read(addr << 2, r);
+
+ return r;
+}
+
+static void memcard_write(void *opaque, hwaddr addr, uint64_t value,
+ unsigned size)
+{
+ MilkymistMemcardState *s = opaque;
+
+ trace_milkymist_memcard_memory_write(addr, value);
+
+ addr >>= 2;
+ switch (addr) {
+ case R_PENDING:
+ /* clear rx pending bits */
+ s->regs[R_PENDING] &= ~(value & (PENDING_CMD_RX | PENDING_DAT_RX));
+ update_pending_bits(s);
+ break;
+ case R_CMD:
+ if (!s->enabled) {
+ break;
+ }
+ if (s->ignore_next_cmd) {
+ s->ignore_next_cmd = 0;
+ break;
+ }
+ s->command[s->command_write_ptr] = value & 0xff;
+ s->command_write_ptr = (s->command_write_ptr + 1) % 6;
+ if (s->command_write_ptr == 0) {
+ memcard_sd_command(s);
+ }
+ break;
+ case R_DAT:
+ if (!s->enabled) {
+ break;
+ }
+ sd_write_data(s->card, (value >> 24) & 0xff);
+ sd_write_data(s->card, (value >> 16) & 0xff);
+ sd_write_data(s->card, (value >> 8) & 0xff);
+ sd_write_data(s->card, value & 0xff);
+ break;
+ case R_ENABLE:
+ s->regs[addr] = value;
+ update_pending_bits(s);
+ break;
+ case R_CLK2XDIV:
+ case R_START:
+ s->regs[addr] = value;
+ break;
+
+ default:
+ error_report("milkymist_memcard: write access to unknown register 0x"
+ TARGET_FMT_plx, addr << 2);
+ break;
+ }
+}
+
+static const MemoryRegionOps memcard_mmio_ops = {
+ .read = memcard_read,
+ .write = memcard_write,
+ .valid = {
+ .min_access_size = 4,
+ .max_access_size = 4,
+ },
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static void milkymist_memcard_reset(DeviceState *d)
+{
+ MilkymistMemcardState *s =
+ container_of(d, MilkymistMemcardState, busdev.qdev);
+ int i;
+
+ s->command_write_ptr = 0;
+ s->response_read_ptr = 0;
+ s->response_len = 0;
+
+ for (i = 0; i < R_MAX; i++) {
+ s->regs[i] = 0;
+ }
+}
+
+static int milkymist_memcard_init(SysBusDevice *dev)
+{
+ MilkymistMemcardState *s = FROM_SYSBUS(typeof(*s), dev);
+ DriveInfo *dinfo;
+
+ dinfo = drive_get_next(IF_SD);
+ s->card = sd_init(dinfo ? dinfo->bdrv : NULL, 0);
+ s->enabled = dinfo ? bdrv_is_inserted(dinfo->bdrv) : 0;
+
+ memory_region_init_io(&s->regs_region, &memcard_mmio_ops, s,
+ "milkymist-memcard", R_MAX * 4);
+ sysbus_init_mmio(dev, &s->regs_region);
+
+ return 0;
+}
+
+static const VMStateDescription vmstate_milkymist_memcard = {
+ .name = "milkymist-memcard",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT32(command_write_ptr, MilkymistMemcardState),
+ VMSTATE_INT32(response_read_ptr, MilkymistMemcardState),
+ VMSTATE_INT32(response_len, MilkymistMemcardState),
+ VMSTATE_INT32(ignore_next_cmd, MilkymistMemcardState),
+ VMSTATE_INT32(enabled, MilkymistMemcardState),
+ VMSTATE_UINT8_ARRAY(command, MilkymistMemcardState, 6),
+ VMSTATE_UINT8_ARRAY(response, MilkymistMemcardState, 17),
+ VMSTATE_UINT32_ARRAY(regs, MilkymistMemcardState, R_MAX),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void milkymist_memcard_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = milkymist_memcard_init;
+ dc->reset = milkymist_memcard_reset;
+ dc->vmsd = &vmstate_milkymist_memcard;
+}
+
+static const TypeInfo milkymist_memcard_info = {
+ .name = "milkymist-memcard",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(MilkymistMemcardState),
+ .class_init = milkymist_memcard_class_init,
+};
+
+static void milkymist_memcard_register_types(void)
+{
+ type_register_static(&milkymist_memcard_info);
+}
+
+type_init(milkymist_memcard_register_types)
diff --git a/hw/sd/omap_mmc.c b/hw/sd/omap_mmc.c
new file mode 100644
index 0000000..d4079cd
--- /dev/null
+++ b/hw/sd/omap_mmc.c
@@ -0,0 +1,641 @@
+/*
+ * OMAP on-chip MMC/SD host emulation.
+ *
+ * Copyright (C) 2006-2007 Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * 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 or
+ * (at your option) version 3 of the License.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+#include "hw/hw.h"
+#include "hw/arm/omap.h"
+#include "hw/sd.h"
+
+struct omap_mmc_s {
+ qemu_irq irq;
+ qemu_irq *dma;
+ qemu_irq coverswitch;
+ MemoryRegion iomem;
+ omap_clk clk;
+ SDState *card;
+ uint16_t last_cmd;
+ uint16_t sdio;
+ uint16_t rsp[8];
+ uint32_t arg;
+ int lines;
+ int dw;
+ int mode;
+ int enable;
+ int be;
+ int rev;
+ uint16_t status;
+ uint16_t mask;
+ uint8_t cto;
+ uint16_t dto;
+ int clkdiv;
+ uint16_t fifo[32];
+ int fifo_start;
+ int fifo_len;
+ uint16_t blen;
+ uint16_t blen_counter;
+ uint16_t nblk;
+ uint16_t nblk_counter;
+ int tx_dma;
+ int rx_dma;
+ int af_level;
+ int ae_level;
+
+ int ddir;
+ int transfer;
+
+ int cdet_wakeup;
+ int cdet_enable;
+ int cdet_state;
+ qemu_irq cdet;
+};
+
+static void omap_mmc_interrupts_update(struct omap_mmc_s *s)
+{
+ qemu_set_irq(s->irq, !!(s->status & s->mask));
+}
+
+static void omap_mmc_fifolevel_update(struct omap_mmc_s *host)
+{
+ if (!host->transfer && !host->fifo_len) {
+ host->status &= 0xf3ff;
+ return;
+ }
+
+ if (host->fifo_len > host->af_level && host->ddir) {
+ if (host->rx_dma) {
+ host->status &= 0xfbff;
+ qemu_irq_raise(host->dma[1]);
+ } else
+ host->status |= 0x0400;
+ } else {
+ host->status &= 0xfbff;
+ qemu_irq_lower(host->dma[1]);
+ }
+
+ if (host->fifo_len < host->ae_level && !host->ddir) {
+ if (host->tx_dma) {
+ host->status &= 0xf7ff;
+ qemu_irq_raise(host->dma[0]);
+ } else
+ host->status |= 0x0800;
+ } else {
+ qemu_irq_lower(host->dma[0]);
+ host->status &= 0xf7ff;
+ }
+}
+
+typedef enum {
+ sd_nore = 0, /* no response */
+ sd_r1, /* normal response command */
+ sd_r2, /* CID, CSD registers */
+ sd_r3, /* OCR register */
+ sd_r6 = 6, /* Published RCA response */
+ sd_r1b = -1,
+} sd_rsp_type_t;
+
+static void omap_mmc_command(struct omap_mmc_s *host, int cmd, int dir,
+ sd_cmd_type_t type, int busy, sd_rsp_type_t resptype, int init)
+{
+ uint32_t rspstatus, mask;
+ int rsplen, timeout;
+ SDRequest request;
+ uint8_t response[16];
+
+ if (init && cmd == 0) {
+ host->status |= 0x0001;
+ return;
+ }
+
+ if (resptype == sd_r1 && busy)
+ resptype = sd_r1b;
+
+ if (type == sd_adtc) {
+ host->fifo_start = 0;
+ host->fifo_len = 0;
+ host->transfer = 1;
+ host->ddir = dir;
+ } else
+ host->transfer = 0;
+ timeout = 0;
+ mask = 0;
+ rspstatus = 0;
+
+ request.cmd = cmd;
+ request.arg = host->arg;
+ request.crc = 0; /* FIXME */
+
+ rsplen = sd_do_command(host->card, &request, response);
+
+ /* TODO: validate CRCs */
+ switch (resptype) {
+ case sd_nore:
+ rsplen = 0;
+ break;
+
+ case sd_r1:
+ case sd_r1b:
+ if (rsplen < 4) {
+ timeout = 1;
+ break;
+ }
+ rsplen = 4;
+
+ mask = OUT_OF_RANGE | ADDRESS_ERROR | BLOCK_LEN_ERROR |
+ ERASE_SEQ_ERROR | ERASE_PARAM | WP_VIOLATION |
+ LOCK_UNLOCK_FAILED | COM_CRC_ERROR | ILLEGAL_COMMAND |
+ CARD_ECC_FAILED | CC_ERROR | SD_ERROR |
+ CID_CSD_OVERWRITE;
+ if (host->sdio & (1 << 13))
+ mask |= AKE_SEQ_ERROR;
+ rspstatus = (response[0] << 24) | (response[1] << 16) |
+ (response[2] << 8) | (response[3] << 0);
+ break;
+
+ case sd_r2:
+ if (rsplen < 16) {
+ timeout = 1;
+ break;
+ }
+ rsplen = 16;
+ break;
+
+ case sd_r3:
+ if (rsplen < 4) {
+ timeout = 1;
+ break;
+ }
+ rsplen = 4;
+
+ rspstatus = (response[0] << 24) | (response[1] << 16) |
+ (response[2] << 8) | (response[3] << 0);
+ if (rspstatus & 0x80000000)
+ host->status &= 0xe000;
+ else
+ host->status |= 0x1000;
+ break;
+
+ case sd_r6:
+ if (rsplen < 4) {
+ timeout = 1;
+ break;
+ }
+ rsplen = 4;
+
+ mask = 0xe000 | AKE_SEQ_ERROR;
+ rspstatus = (response[2] << 8) | (response[3] << 0);
+ }
+
+ if (rspstatus & mask)
+ host->status |= 0x4000;
+ else
+ host->status &= 0xb000;
+
+ if (rsplen)
+ for (rsplen = 0; rsplen < 8; rsplen ++)
+ host->rsp[~rsplen & 7] = response[(rsplen << 1) | 1] |
+ (response[(rsplen << 1) | 0] << 8);
+
+ if (timeout)
+ host->status |= 0x0080;
+ else if (cmd == 12)
+ host->status |= 0x0005; /* Makes it more real */
+ else
+ host->status |= 0x0001;
+}
+
+static void omap_mmc_transfer(struct omap_mmc_s *host)
+{
+ uint8_t value;
+
+ if (!host->transfer)
+ return;
+
+ while (1) {
+ if (host->ddir) {
+ if (host->fifo_len > host->af_level)
+ break;
+
+ value = sd_read_data(host->card);
+ host->fifo[(host->fifo_start + host->fifo_len) & 31] = value;
+ if (-- host->blen_counter) {
+ value = sd_read_data(host->card);
+ host->fifo[(host->fifo_start + host->fifo_len) & 31] |=
+ value << 8;
+ host->blen_counter --;
+ }
+
+ host->fifo_len ++;
+ } else {
+ if (!host->fifo_len)
+ break;
+
+ value = host->fifo[host->fifo_start] & 0xff;
+ sd_write_data(host->card, value);
+ if (-- host->blen_counter) {
+ value = host->fifo[host->fifo_start] >> 8;
+ sd_write_data(host->card, value);
+ host->blen_counter --;
+ }
+
+ host->fifo_start ++;
+ host->fifo_len --;
+ host->fifo_start &= 31;
+ }
+
+ if (host->blen_counter == 0) {
+ host->nblk_counter --;
+ host->blen_counter = host->blen;
+
+ if (host->nblk_counter == 0) {
+ host->nblk_counter = host->nblk;
+ host->transfer = 0;
+ host->status |= 0x0008;
+ break;
+ }
+ }
+ }
+}
+
+static void omap_mmc_update(void *opaque)
+{
+ struct omap_mmc_s *s = opaque;
+ omap_mmc_transfer(s);
+ omap_mmc_fifolevel_update(s);
+ omap_mmc_interrupts_update(s);
+}
+
+void omap_mmc_reset(struct omap_mmc_s *host)
+{
+ host->last_cmd = 0;
+ memset(host->rsp, 0, sizeof(host->rsp));
+ host->arg = 0;
+ host->dw = 0;
+ host->mode = 0;
+ host->enable = 0;
+ host->status = 0;
+ host->mask = 0;
+ host->cto = 0;
+ host->dto = 0;
+ host->fifo_len = 0;
+ host->blen = 0;
+ host->blen_counter = 0;
+ host->nblk = 0;
+ host->nblk_counter = 0;
+ host->tx_dma = 0;
+ host->rx_dma = 0;
+ host->ae_level = 0x00;
+ host->af_level = 0x1f;
+ host->transfer = 0;
+ host->cdet_wakeup = 0;
+ host->cdet_enable = 0;
+ qemu_set_irq(host->coverswitch, host->cdet_state);
+ host->clkdiv = 0;
+}
+
+static uint64_t omap_mmc_read(void *opaque, hwaddr offset,
+ unsigned size)
+{
+ uint16_t i;
+ struct omap_mmc_s *s = (struct omap_mmc_s *) opaque;
+
+ if (size != 2) {
+ return omap_badwidth_read16(opaque, offset);
+ }
+
+ switch (offset) {
+ case 0x00: /* MMC_CMD */
+ return s->last_cmd;
+
+ case 0x04: /* MMC_ARGL */
+ return s->arg & 0x0000ffff;
+
+ case 0x08: /* MMC_ARGH */
+ return s->arg >> 16;
+
+ case 0x0c: /* MMC_CON */
+ return (s->dw << 15) | (s->mode << 12) | (s->enable << 11) |
+ (s->be << 10) | s->clkdiv;
+
+ case 0x10: /* MMC_STAT */
+ return s->status;
+
+ case 0x14: /* MMC_IE */
+ return s->mask;
+
+ case 0x18: /* MMC_CTO */
+ return s->cto;
+
+ case 0x1c: /* MMC_DTO */
+ return s->dto;
+
+ case 0x20: /* MMC_DATA */
+ /* TODO: support 8-bit access */
+ i = s->fifo[s->fifo_start];
+ if (s->fifo_len == 0) {
+ printf("MMC: FIFO underrun\n");
+ return i;
+ }
+ s->fifo_start ++;
+ s->fifo_len --;
+ s->fifo_start &= 31;
+ omap_mmc_transfer(s);
+ omap_mmc_fifolevel_update(s);
+ omap_mmc_interrupts_update(s);
+ return i;
+
+ case 0x24: /* MMC_BLEN */
+ return s->blen_counter;
+
+ case 0x28: /* MMC_NBLK */
+ return s->nblk_counter;
+
+ case 0x2c: /* MMC_BUF */
+ return (s->rx_dma << 15) | (s->af_level << 8) |
+ (s->tx_dma << 7) | s->ae_level;
+
+ case 0x30: /* MMC_SPI */
+ return 0x0000;
+ case 0x34: /* MMC_SDIO */
+ return (s->cdet_wakeup << 2) | (s->cdet_enable) | s->sdio;
+ case 0x38: /* MMC_SYST */
+ return 0x0000;
+
+ case 0x3c: /* MMC_REV */
+ return s->rev;
+
+ case 0x40: /* MMC_RSP0 */
+ case 0x44: /* MMC_RSP1 */
+ case 0x48: /* MMC_RSP2 */
+ case 0x4c: /* MMC_RSP3 */
+ case 0x50: /* MMC_RSP4 */
+ case 0x54: /* MMC_RSP5 */
+ case 0x58: /* MMC_RSP6 */
+ case 0x5c: /* MMC_RSP7 */
+ return s->rsp[(offset - 0x40) >> 2];
+
+ /* OMAP2-specific */
+ case 0x60: /* MMC_IOSR */
+ case 0x64: /* MMC_SYSC */
+ return 0;
+ case 0x68: /* MMC_SYSS */
+ return 1; /* RSTD */
+ }
+
+ OMAP_BAD_REG(offset);
+ return 0;
+}
+
+static void omap_mmc_write(void *opaque, hwaddr offset,
+ uint64_t value, unsigned size)
+{
+ int i;
+ struct omap_mmc_s *s = (struct omap_mmc_s *) opaque;
+
+ if (size != 2) {
+ return omap_badwidth_write16(opaque, offset, value);
+ }
+
+ switch (offset) {
+ case 0x00: /* MMC_CMD */
+ if (!s->enable)
+ break;
+
+ s->last_cmd = value;
+ for (i = 0; i < 8; i ++)
+ s->rsp[i] = 0x0000;
+ omap_mmc_command(s, value & 63, (value >> 15) & 1,
+ (sd_cmd_type_t) ((value >> 12) & 3),
+ (value >> 11) & 1,
+ (sd_rsp_type_t) ((value >> 8) & 7),
+ (value >> 7) & 1);
+ omap_mmc_update(s);
+ break;
+
+ case 0x04: /* MMC_ARGL */
+ s->arg &= 0xffff0000;
+ s->arg |= 0x0000ffff & value;
+ break;
+
+ case 0x08: /* MMC_ARGH */
+ s->arg &= 0x0000ffff;
+ s->arg |= value << 16;
+ break;
+
+ case 0x0c: /* MMC_CON */
+ s->dw = (value >> 15) & 1;
+ s->mode = (value >> 12) & 3;
+ s->enable = (value >> 11) & 1;
+ s->be = (value >> 10) & 1;
+ s->clkdiv = (value >> 0) & (s->rev >= 2 ? 0x3ff : 0xff);
+ if (s->mode != 0)
+ printf("SD mode %i unimplemented!\n", s->mode);
+ if (s->be != 0)
+ printf("SD FIFO byte sex unimplemented!\n");
+ if (s->dw != 0 && s->lines < 4)
+ printf("4-bit SD bus enabled\n");
+ if (!s->enable)
+ omap_mmc_reset(s);
+ break;
+
+ case 0x10: /* MMC_STAT */
+ s->status &= ~value;
+ omap_mmc_interrupts_update(s);
+ break;
+
+ case 0x14: /* MMC_IE */
+ s->mask = value & 0x7fff;
+ omap_mmc_interrupts_update(s);
+ break;
+
+ case 0x18: /* MMC_CTO */
+ s->cto = value & 0xff;
+ if (s->cto > 0xfd && s->rev <= 1)
+ printf("MMC: CTO of 0xff and 0xfe cannot be used!\n");
+ break;
+
+ case 0x1c: /* MMC_DTO */
+ s->dto = value & 0xffff;
+ break;
+
+ case 0x20: /* MMC_DATA */
+ /* TODO: support 8-bit access */
+ if (s->fifo_len == 32)
+ break;
+ s->fifo[(s->fifo_start + s->fifo_len) & 31] = value;
+ s->fifo_len ++;
+ omap_mmc_transfer(s);
+ omap_mmc_fifolevel_update(s);
+ omap_mmc_interrupts_update(s);
+ break;
+
+ case 0x24: /* MMC_BLEN */
+ s->blen = (value & 0x07ff) + 1;
+ s->blen_counter = s->blen;
+ break;
+
+ case 0x28: /* MMC_NBLK */
+ s->nblk = (value & 0x07ff) + 1;
+ s->nblk_counter = s->nblk;
+ s->blen_counter = s->blen;
+ break;
+
+ case 0x2c: /* MMC_BUF */
+ s->rx_dma = (value >> 15) & 1;
+ s->af_level = (value >> 8) & 0x1f;
+ s->tx_dma = (value >> 7) & 1;
+ s->ae_level = value & 0x1f;
+
+ if (s->rx_dma)
+ s->status &= 0xfbff;
+ if (s->tx_dma)
+ s->status &= 0xf7ff;
+ omap_mmc_fifolevel_update(s);
+ omap_mmc_interrupts_update(s);
+ break;
+
+ /* SPI, SDIO and TEST modes unimplemented */
+ case 0x30: /* MMC_SPI (OMAP1 only) */
+ break;
+ case 0x34: /* MMC_SDIO */
+ s->sdio = value & (s->rev >= 2 ? 0xfbf3 : 0x2020);
+ s->cdet_wakeup = (value >> 9) & 1;
+ s->cdet_enable = (value >> 2) & 1;
+ break;
+ case 0x38: /* MMC_SYST */
+ break;
+
+ case 0x3c: /* MMC_REV */
+ case 0x40: /* MMC_RSP0 */
+ case 0x44: /* MMC_RSP1 */
+ case 0x48: /* MMC_RSP2 */
+ case 0x4c: /* MMC_RSP3 */
+ case 0x50: /* MMC_RSP4 */
+ case 0x54: /* MMC_RSP5 */
+ case 0x58: /* MMC_RSP6 */
+ case 0x5c: /* MMC_RSP7 */
+ OMAP_RO_REG(offset);
+ break;
+
+ /* OMAP2-specific */
+ case 0x60: /* MMC_IOSR */
+ if (value & 0xf)
+ printf("MMC: SDIO bits used!\n");
+ break;
+ case 0x64: /* MMC_SYSC */
+ if (value & (1 << 2)) /* SRTS */
+ omap_mmc_reset(s);
+ break;
+ case 0x68: /* MMC_SYSS */
+ OMAP_RO_REG(offset);
+ break;
+
+ default:
+ OMAP_BAD_REG(offset);
+ }
+}
+
+static const MemoryRegionOps omap_mmc_ops = {
+ .read = omap_mmc_read,
+ .write = omap_mmc_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static void omap_mmc_cover_cb(void *opaque, int line, int level)
+{
+ struct omap_mmc_s *host = (struct omap_mmc_s *) opaque;
+
+ if (!host->cdet_state && level) {
+ host->status |= 0x0002;
+ omap_mmc_interrupts_update(host);
+ if (host->cdet_wakeup) {
+ /* TODO: Assert wake-up */
+ }
+ }
+
+ if (host->cdet_state != level) {
+ qemu_set_irq(host->coverswitch, level);
+ host->cdet_state = level;
+ }
+}
+
+struct omap_mmc_s *omap_mmc_init(hwaddr base,
+ MemoryRegion *sysmem,
+ BlockDriverState *bd,
+ qemu_irq irq, qemu_irq dma[], omap_clk clk)
+{
+ struct omap_mmc_s *s = (struct omap_mmc_s *)
+ g_malloc0(sizeof(struct omap_mmc_s));
+
+ s->irq = irq;
+ s->dma = dma;
+ s->clk = clk;
+ s->lines = 1; /* TODO: needs to be settable per-board */
+ s->rev = 1;
+
+ omap_mmc_reset(s);
+
+ memory_region_init_io(&s->iomem, &omap_mmc_ops, s, "omap.mmc", 0x800);
+ memory_region_add_subregion(sysmem, base, &s->iomem);
+
+ /* Instantiate the storage */
+ s->card = sd_init(bd, 0);
+
+ return s;
+}
+
+struct omap_mmc_s *omap2_mmc_init(struct omap_target_agent_s *ta,
+ BlockDriverState *bd, qemu_irq irq, qemu_irq dma[],
+ omap_clk fclk, omap_clk iclk)
+{
+ struct omap_mmc_s *s = (struct omap_mmc_s *)
+ g_malloc0(sizeof(struct omap_mmc_s));
+
+ s->irq = irq;
+ s->dma = dma;
+ s->clk = fclk;
+ s->lines = 4;
+ s->rev = 2;
+
+ omap_mmc_reset(s);
+
+ memory_region_init_io(&s->iomem, &omap_mmc_ops, s, "omap.mmc",
+ omap_l4_region_size(ta, 0));
+ omap_l4_attach(ta, 0, &s->iomem);
+
+ /* Instantiate the storage */
+ s->card = sd_init(bd, 0);
+
+ s->cdet = qemu_allocate_irqs(omap_mmc_cover_cb, s, 1)[0];
+ sd_set_cb(s->card, NULL, s->cdet);
+
+ return s;
+}
+
+void omap_mmc_handlers(struct omap_mmc_s *s, qemu_irq ro, qemu_irq cover)
+{
+ if (s->cdet) {
+ sd_set_cb(s->card, ro, s->cdet);
+ s->coverswitch = cover;
+ qemu_set_irq(cover, s->cdet_state);
+ } else
+ sd_set_cb(s->card, ro, cover);
+}
+
+void omap_mmc_enable(struct omap_mmc_s *s, int enable)
+{
+ sd_enable(s->card, enable);
+}
diff --git a/hw/sd/pxa2xx_mmci.c b/hw/sd/pxa2xx_mmci.c
new file mode 100644
index 0000000..2db1cab
--- /dev/null
+++ b/hw/sd/pxa2xx_mmci.c
@@ -0,0 +1,553 @@
+/*
+ * Intel XScale PXA255/270 MultiMediaCard/SD/SDIO Controller emulation.
+ *
+ * Copyright (c) 2006 Openedhand Ltd.
+ * Written by Andrzej Zaborowski <balrog@zabor.org>
+ *
+ * This code is licensed under the GPLv2.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "hw/hw.h"
+#include "hw/arm/pxa.h"
+#include "hw/sd.h"
+#include "hw/qdev.h"
+
+struct PXA2xxMMCIState {
+ MemoryRegion iomem;
+ qemu_irq irq;
+ qemu_irq rx_dma;
+ qemu_irq tx_dma;
+
+ SDState *card;
+
+ uint32_t status;
+ uint32_t clkrt;
+ uint32_t spi;
+ uint32_t cmdat;
+ uint32_t resp_tout;
+ uint32_t read_tout;
+ int blklen;
+ int numblk;
+ uint32_t intmask;
+ uint32_t intreq;
+ int cmd;
+ uint32_t arg;
+
+ int active;
+ int bytesleft;
+ uint8_t tx_fifo[64];
+ int tx_start;
+ int tx_len;
+ uint8_t rx_fifo[32];
+ int rx_start;
+ int rx_len;
+ uint16_t resp_fifo[9];
+ int resp_len;
+
+ int cmdreq;
+ int ac_width;
+};
+
+#define MMC_STRPCL 0x00 /* MMC Clock Start/Stop register */
+#define MMC_STAT 0x04 /* MMC Status register */
+#define MMC_CLKRT 0x08 /* MMC Clock Rate register */
+#define MMC_SPI 0x0c /* MMC SPI Mode register */
+#define MMC_CMDAT 0x10 /* MMC Command/Data register */
+#define MMC_RESTO 0x14 /* MMC Response Time-Out register */
+#define MMC_RDTO 0x18 /* MMC Read Time-Out register */
+#define MMC_BLKLEN 0x1c /* MMC Block Length register */
+#define MMC_NUMBLK 0x20 /* MMC Number of Blocks register */
+#define MMC_PRTBUF 0x24 /* MMC Buffer Partly Full register */
+#define MMC_I_MASK 0x28 /* MMC Interrupt Mask register */
+#define MMC_I_REG 0x2c /* MMC Interrupt Request register */
+#define MMC_CMD 0x30 /* MMC Command register */
+#define MMC_ARGH 0x34 /* MMC Argument High register */
+#define MMC_ARGL 0x38 /* MMC Argument Low register */
+#define MMC_RES 0x3c /* MMC Response FIFO */
+#define MMC_RXFIFO 0x40 /* MMC Receive FIFO */
+#define MMC_TXFIFO 0x44 /* MMC Transmit FIFO */
+#define MMC_RDWAIT 0x48 /* MMC RD_WAIT register */
+#define MMC_BLKS_REM 0x4c /* MMC Blocks Remaining register */
+
+/* Bitfield masks */
+#define STRPCL_STOP_CLK (1 << 0)
+#define STRPCL_STRT_CLK (1 << 1)
+#define STAT_TOUT_RES (1 << 1)
+#define STAT_CLK_EN (1 << 8)
+#define STAT_DATA_DONE (1 << 11)
+#define STAT_PRG_DONE (1 << 12)
+#define STAT_END_CMDRES (1 << 13)
+#define SPI_SPI_MODE (1 << 0)
+#define CMDAT_RES_TYPE (3 << 0)
+#define CMDAT_DATA_EN (1 << 2)
+#define CMDAT_WR_RD (1 << 3)
+#define CMDAT_DMA_EN (1 << 7)
+#define CMDAT_STOP_TRAN (1 << 10)
+#define INT_DATA_DONE (1 << 0)
+#define INT_PRG_DONE (1 << 1)
+#define INT_END_CMD (1 << 2)
+#define INT_STOP_CMD (1 << 3)
+#define INT_CLK_OFF (1 << 4)
+#define INT_RXFIFO_REQ (1 << 5)
+#define INT_TXFIFO_REQ (1 << 6)
+#define INT_TINT (1 << 7)
+#define INT_DAT_ERR (1 << 8)
+#define INT_RES_ERR (1 << 9)
+#define INT_RD_STALLED (1 << 10)
+#define INT_SDIO_INT (1 << 11)
+#define INT_SDIO_SACK (1 << 12)
+#define PRTBUF_PRT_BUF (1 << 0)
+
+/* Route internal interrupt lines to the global IC and DMA */
+static void pxa2xx_mmci_int_update(PXA2xxMMCIState *s)
+{
+ uint32_t mask = s->intmask;
+ if (s->cmdat & CMDAT_DMA_EN) {
+ mask |= INT_RXFIFO_REQ | INT_TXFIFO_REQ;
+
+ qemu_set_irq(s->rx_dma, !!(s->intreq & INT_RXFIFO_REQ));
+ qemu_set_irq(s->tx_dma, !!(s->intreq & INT_TXFIFO_REQ));
+ }
+
+ qemu_set_irq(s->irq, !!(s->intreq & ~mask));
+}
+
+static void pxa2xx_mmci_fifo_update(PXA2xxMMCIState *s)
+{
+ if (!s->active)
+ return;
+
+ if (s->cmdat & CMDAT_WR_RD) {
+ while (s->bytesleft && s->tx_len) {
+ sd_write_data(s->card, s->tx_fifo[s->tx_start ++]);
+ s->tx_start &= 0x1f;
+ s->tx_len --;
+ s->bytesleft --;
+ }
+ if (s->bytesleft)
+ s->intreq |= INT_TXFIFO_REQ;
+ } else
+ while (s->bytesleft && s->rx_len < 32) {
+ s->rx_fifo[(s->rx_start + (s->rx_len ++)) & 0x1f] =
+ sd_read_data(s->card);
+ s->bytesleft --;
+ s->intreq |= INT_RXFIFO_REQ;
+ }
+
+ if (!s->bytesleft) {
+ s->active = 0;
+ s->intreq |= INT_DATA_DONE;
+ s->status |= STAT_DATA_DONE;
+
+ if (s->cmdat & CMDAT_WR_RD) {
+ s->intreq |= INT_PRG_DONE;
+ s->status |= STAT_PRG_DONE;
+ }
+ }
+
+ pxa2xx_mmci_int_update(s);
+}
+
+static void pxa2xx_mmci_wakequeues(PXA2xxMMCIState *s)
+{
+ int rsplen, i;
+ SDRequest request;
+ uint8_t response[16];
+
+ s->active = 1;
+ s->rx_len = 0;
+ s->tx_len = 0;
+ s->cmdreq = 0;
+
+ request.cmd = s->cmd;
+ request.arg = s->arg;
+ request.crc = 0; /* FIXME */
+
+ rsplen = sd_do_command(s->card, &request, response);
+ s->intreq |= INT_END_CMD;
+
+ memset(s->resp_fifo, 0, sizeof(s->resp_fifo));
+ switch (s->cmdat & CMDAT_RES_TYPE) {
+#define PXAMMCI_RESP(wd, value0, value1) \
+ s->resp_fifo[(wd) + 0] |= (value0); \
+ s->resp_fifo[(wd) + 1] |= (value1) << 8;
+ case 0: /* No response */
+ goto complete;
+
+ case 1: /* R1, R4, R5 or R6 */
+ if (rsplen < 4)
+ goto timeout;
+ goto complete;
+
+ case 2: /* R2 */
+ if (rsplen < 16)
+ goto timeout;
+ goto complete;
+
+ case 3: /* R3 */
+ if (rsplen < 4)
+ goto timeout;
+ goto complete;
+
+ complete:
+ for (i = 0; rsplen > 0; i ++, rsplen -= 2) {
+ PXAMMCI_RESP(i, response[i * 2], response[i * 2 + 1]);
+ }
+ s->status |= STAT_END_CMDRES;
+
+ if (!(s->cmdat & CMDAT_DATA_EN))
+ s->active = 0;
+ else
+ s->bytesleft = s->numblk * s->blklen;
+
+ s->resp_len = 0;
+ break;
+
+ timeout:
+ s->active = 0;
+ s->status |= STAT_TOUT_RES;
+ break;
+ }
+
+ pxa2xx_mmci_fifo_update(s);
+}
+
+static uint32_t pxa2xx_mmci_read(void *opaque, hwaddr offset)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ uint32_t ret;
+
+ switch (offset) {
+ case MMC_STRPCL:
+ return 0;
+ case MMC_STAT:
+ return s->status;
+ case MMC_CLKRT:
+ return s->clkrt;
+ case MMC_SPI:
+ return s->spi;
+ case MMC_CMDAT:
+ return s->cmdat;
+ case MMC_RESTO:
+ return s->resp_tout;
+ case MMC_RDTO:
+ return s->read_tout;
+ case MMC_BLKLEN:
+ return s->blklen;
+ case MMC_NUMBLK:
+ return s->numblk;
+ case MMC_PRTBUF:
+ return 0;
+ case MMC_I_MASK:
+ return s->intmask;
+ case MMC_I_REG:
+ return s->intreq;
+ case MMC_CMD:
+ return s->cmd | 0x40;
+ case MMC_ARGH:
+ return s->arg >> 16;
+ case MMC_ARGL:
+ return s->arg & 0xffff;
+ case MMC_RES:
+ if (s->resp_len < 9)
+ return s->resp_fifo[s->resp_len ++];
+ return 0;
+ case MMC_RXFIFO:
+ ret = 0;
+ while (s->ac_width -- && s->rx_len) {
+ ret |= s->rx_fifo[s->rx_start ++] << (s->ac_width << 3);
+ s->rx_start &= 0x1f;
+ s->rx_len --;
+ }
+ s->intreq &= ~INT_RXFIFO_REQ;
+ pxa2xx_mmci_fifo_update(s);
+ return ret;
+ case MMC_RDWAIT:
+ return 0;
+ case MMC_BLKS_REM:
+ return s->numblk;
+ default:
+ hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
+ }
+
+ return 0;
+}
+
+static void pxa2xx_mmci_write(void *opaque,
+ hwaddr offset, uint32_t value)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+
+ switch (offset) {
+ case MMC_STRPCL:
+ if (value & STRPCL_STRT_CLK) {
+ s->status |= STAT_CLK_EN;
+ s->intreq &= ~INT_CLK_OFF;
+
+ if (s->cmdreq && !(s->cmdat & CMDAT_STOP_TRAN)) {
+ s->status &= STAT_CLK_EN;
+ pxa2xx_mmci_wakequeues(s);
+ }
+ }
+
+ if (value & STRPCL_STOP_CLK) {
+ s->status &= ~STAT_CLK_EN;
+ s->intreq |= INT_CLK_OFF;
+ s->active = 0;
+ }
+
+ pxa2xx_mmci_int_update(s);
+ break;
+
+ case MMC_CLKRT:
+ s->clkrt = value & 7;
+ break;
+
+ case MMC_SPI:
+ s->spi = value & 0xf;
+ if (value & SPI_SPI_MODE)
+ printf("%s: attempted to use card in SPI mode\n", __FUNCTION__);
+ break;
+
+ case MMC_CMDAT:
+ s->cmdat = value & 0x3dff;
+ s->active = 0;
+ s->cmdreq = 1;
+ if (!(value & CMDAT_STOP_TRAN)) {
+ s->status &= STAT_CLK_EN;
+
+ if (s->status & STAT_CLK_EN)
+ pxa2xx_mmci_wakequeues(s);
+ }
+
+ pxa2xx_mmci_int_update(s);
+ break;
+
+ case MMC_RESTO:
+ s->resp_tout = value & 0x7f;
+ break;
+
+ case MMC_RDTO:
+ s->read_tout = value & 0xffff;
+ break;
+
+ case MMC_BLKLEN:
+ s->blklen = value & 0xfff;
+ break;
+
+ case MMC_NUMBLK:
+ s->numblk = value & 0xffff;
+ break;
+
+ case MMC_PRTBUF:
+ if (value & PRTBUF_PRT_BUF) {
+ s->tx_start ^= 32;
+ s->tx_len = 0;
+ }
+ pxa2xx_mmci_fifo_update(s);
+ break;
+
+ case MMC_I_MASK:
+ s->intmask = value & 0x1fff;
+ pxa2xx_mmci_int_update(s);
+ break;
+
+ case MMC_CMD:
+ s->cmd = value & 0x3f;
+ break;
+
+ case MMC_ARGH:
+ s->arg &= 0x0000ffff;
+ s->arg |= value << 16;
+ break;
+
+ case MMC_ARGL:
+ s->arg &= 0xffff0000;
+ s->arg |= value & 0x0000ffff;
+ break;
+
+ case MMC_TXFIFO:
+ while (s->ac_width -- && s->tx_len < 0x20)
+ s->tx_fifo[(s->tx_start + (s->tx_len ++)) & 0x1f] =
+ (value >> (s->ac_width << 3)) & 0xff;
+ s->intreq &= ~INT_TXFIFO_REQ;
+ pxa2xx_mmci_fifo_update(s);
+ break;
+
+ case MMC_RDWAIT:
+ case MMC_BLKS_REM:
+ break;
+
+ default:
+ hw_error("%s: Bad offset " REG_FMT "\n", __FUNCTION__, offset);
+ }
+}
+
+static uint32_t pxa2xx_mmci_readb(void *opaque, hwaddr offset)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ s->ac_width = 1;
+ return pxa2xx_mmci_read(opaque, offset);
+}
+
+static uint32_t pxa2xx_mmci_readh(void *opaque, hwaddr offset)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ s->ac_width = 2;
+ return pxa2xx_mmci_read(opaque, offset);
+}
+
+static uint32_t pxa2xx_mmci_readw(void *opaque, hwaddr offset)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ s->ac_width = 4;
+ return pxa2xx_mmci_read(opaque, offset);
+}
+
+static void pxa2xx_mmci_writeb(void *opaque,
+ hwaddr offset, uint32_t value)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ s->ac_width = 1;
+ pxa2xx_mmci_write(opaque, offset, value);
+}
+
+static void pxa2xx_mmci_writeh(void *opaque,
+ hwaddr offset, uint32_t value)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ s->ac_width = 2;
+ pxa2xx_mmci_write(opaque, offset, value);
+}
+
+static void pxa2xx_mmci_writew(void *opaque,
+ hwaddr offset, uint32_t value)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ s->ac_width = 4;
+ pxa2xx_mmci_write(opaque, offset, value);
+}
+
+static const MemoryRegionOps pxa2xx_mmci_ops = {
+ .old_mmio = {
+ .read = { pxa2xx_mmci_readb,
+ pxa2xx_mmci_readh,
+ pxa2xx_mmci_readw, },
+ .write = { pxa2xx_mmci_writeb,
+ pxa2xx_mmci_writeh,
+ pxa2xx_mmci_writew, },
+ },
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+static void pxa2xx_mmci_save(QEMUFile *f, void *opaque)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ int i;
+
+ qemu_put_be32s(f, &s->status);
+ qemu_put_be32s(f, &s->clkrt);
+ qemu_put_be32s(f, &s->spi);
+ qemu_put_be32s(f, &s->cmdat);
+ qemu_put_be32s(f, &s->resp_tout);
+ qemu_put_be32s(f, &s->read_tout);
+ qemu_put_be32(f, s->blklen);
+ qemu_put_be32(f, s->numblk);
+ qemu_put_be32s(f, &s->intmask);
+ qemu_put_be32s(f, &s->intreq);
+ qemu_put_be32(f, s->cmd);
+ qemu_put_be32s(f, &s->arg);
+ qemu_put_be32(f, s->cmdreq);
+ qemu_put_be32(f, s->active);
+ qemu_put_be32(f, s->bytesleft);
+
+ qemu_put_byte(f, s->tx_len);
+ for (i = 0; i < s->tx_len; i ++)
+ qemu_put_byte(f, s->tx_fifo[(s->tx_start + i) & 63]);
+
+ qemu_put_byte(f, s->rx_len);
+ for (i = 0; i < s->rx_len; i ++)
+ qemu_put_byte(f, s->rx_fifo[(s->rx_start + i) & 31]);
+
+ qemu_put_byte(f, s->resp_len);
+ for (i = s->resp_len; i < 9; i ++)
+ qemu_put_be16s(f, &s->resp_fifo[i]);
+}
+
+static int pxa2xx_mmci_load(QEMUFile *f, void *opaque, int version_id)
+{
+ PXA2xxMMCIState *s = (PXA2xxMMCIState *) opaque;
+ int i;
+
+ qemu_get_be32s(f, &s->status);
+ qemu_get_be32s(f, &s->clkrt);
+ qemu_get_be32s(f, &s->spi);
+ qemu_get_be32s(f, &s->cmdat);
+ qemu_get_be32s(f, &s->resp_tout);
+ qemu_get_be32s(f, &s->read_tout);
+ s->blklen = qemu_get_be32(f);
+ s->numblk = qemu_get_be32(f);
+ qemu_get_be32s(f, &s->intmask);
+ qemu_get_be32s(f, &s->intreq);
+ s->cmd = qemu_get_be32(f);
+ qemu_get_be32s(f, &s->arg);
+ s->cmdreq = qemu_get_be32(f);
+ s->active = qemu_get_be32(f);
+ s->bytesleft = qemu_get_be32(f);
+
+ s->tx_len = qemu_get_byte(f);
+ s->tx_start = 0;
+ if (s->tx_len >= sizeof(s->tx_fifo) || s->tx_len < 0)
+ return -EINVAL;
+ for (i = 0; i < s->tx_len; i ++)
+ s->tx_fifo[i] = qemu_get_byte(f);
+
+ s->rx_len = qemu_get_byte(f);
+ s->rx_start = 0;
+ if (s->rx_len >= sizeof(s->rx_fifo) || s->rx_len < 0)
+ return -EINVAL;
+ for (i = 0; i < s->rx_len; i ++)
+ s->rx_fifo[i] = qemu_get_byte(f);
+
+ s->resp_len = qemu_get_byte(f);
+ if (s->resp_len > 9 || s->resp_len < 0)
+ return -EINVAL;
+ for (i = s->resp_len; i < 9; i ++)
+ qemu_get_be16s(f, &s->resp_fifo[i]);
+
+ return 0;
+}
+
+PXA2xxMMCIState *pxa2xx_mmci_init(MemoryRegion *sysmem,
+ hwaddr base,
+ BlockDriverState *bd, qemu_irq irq,
+ qemu_irq rx_dma, qemu_irq tx_dma)
+{
+ PXA2xxMMCIState *s;
+
+ s = (PXA2xxMMCIState *) g_malloc0(sizeof(PXA2xxMMCIState));
+ s->irq = irq;
+ s->rx_dma = rx_dma;
+ s->tx_dma = tx_dma;
+
+ memory_region_init_io(&s->iomem, &pxa2xx_mmci_ops, s,
+ "pxa2xx-mmci", 0x00100000);
+ memory_region_add_subregion(sysmem, base, &s->iomem);
+
+ /* Instantiate the actual storage */
+ s->card = sd_init(bd, 0);
+
+ register_savevm(NULL, "pxa2xx_mmci", 0, 0,
+ pxa2xx_mmci_save, pxa2xx_mmci_load, s);
+
+ return s;
+}
+
+void pxa2xx_mmci_handlers(PXA2xxMMCIState *s, qemu_irq readonly,
+ qemu_irq coverswitch)
+{
+ sd_set_cb(s->card, readonly, coverswitch);
+}
generated by cgit v1.1 at 2024-12-26 07:46:21 +0000