* [Qemu-devel] [PATCH v5 1/4] hw: introduce standard SD host controller
2012-07-05 4:03 [Qemu-devel] [PATCH v5 0/4] Standard SD host controller model Peter A. G. Crosthwaite
@ 2012-07-05 4:03 ` Peter A. G. Crosthwaite
2012-07-05 4:04 ` [Qemu-devel] [PATCH v5 2/4] exynos4210: Added SD host controller model Peter A. G. Crosthwaite
` (2 subsequent siblings)
3 siblings, 0 replies; 13+ messages in thread
From: Peter A. G. Crosthwaite @ 2012-07-05 4:03 UTC (permalink / raw)
To: qemu-devel, i.mitsyanko
Cc: peter.maydell, e.voevodin, peter.crosthwaite, kyungmin.park,
d.solodkiy, edgar.iglesias, m.kozlov, john.williams
From: Igor Mitsyanko <i.mitsyanko@samsung.com>
Device model for standard SD Host Controller Interface (SDHCI) compliant with
version 2.00 of SD association specification.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
---
changed from v4 (Igor):
s/sdhc_not_stoped/sdhc_not_stopped/
s/stoped_state/stopped_state/
s/stoped_adma/stopped_adma/
stop insert timer when host controller resets;
stop and free insert timer, free eject_cb and ro_cb in deinit function;
drop redundant "(s->trnmod & SDHC_TRNS_MULTI)" clause;
add comment to Property struct;
changed from v1:
Fixed include guard (Andreas review)
Rebased for new Makefile system
changed from v2:
Typographical fixes for adma implementation
default-configs/arm-softmmu.mak | 1 +
hw/Makefile.objs | 1 +
hw/sdhci.c | 1313 +++++++++++++++++++++++++++++++++++++++
hw/sdhci.h | 310 +++++++++
4 files changed, 1625 insertions(+), 0 deletions(-)
create mode 100644 hw/sdhci.c
create mode 100644 hw/sdhci.h
diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index e542b4f..314784b 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -27,3 +27,4 @@ CONFIG_SMC91C111=y
CONFIG_DS1338=y
CONFIG_PFLASH_CFI01=y
CONFIG_PFLASH_CFI02=y
+CONFIG_SDHCI=y
diff --git a/hw/Makefile.objs b/hw/Makefile.objs
index 3d77259..8d51954 100644
--- a/hw/Makefile.objs
+++ b/hw/Makefile.objs
@@ -35,6 +35,7 @@ hw-obj-$(CONFIG_APPLESMC) += applesmc.o
hw-obj-$(CONFIG_SMARTCARD) += ccid-card-passthru.o
hw-obj-$(CONFIG_SMARTCARD_NSS) += ccid-card-emulated.o
hw-obj-$(CONFIG_I8259) += i8259_common.o i8259.o
+hw-obj-$(CONFIG_SDHCI) += sdhci.o
# PPC devices
hw-obj-$(CONFIG_PREP_PCI) += prep_pci.o
diff --git a/hw/sdhci.c b/hw/sdhci.c
new file mode 100644
index 0000000..ed63caa
--- /dev/null
+++ b/hw/sdhci.c
@@ -0,0 +1,1313 @@
+/*
+ * SD Association Host Standard Specification v2.0 controller emulation
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Mitsyanko Igor <i.mitsyanko@samsung.com>
+ * Peter A.G. Crosthwaite <peter.crosthwaite@petalogix.com>
+ *
+ * Based on MMC controller for Samsung S5PC1xx-based board emulation
+ * by Alexey Merkulov and Vladimir Monakhov.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw.h"
+#include "blockdev.h"
+#include "qemu-timer.h"
+#include "sdhci.h"
+#include "block_int.h"
+
+/* host controller debug messages */
+#define SDHC_DEBUG 0
+
+#if SDHC_DEBUG == 0
+ #define DPRINT_L1(fmt, args...) do { } while (0)
+ #define DPRINT_L2(fmt, args...) do { } while (0)
+ #define ERRPRINT(fmt, args...) do { } while (0)
+#elif SDHC_DEBUG == 1
+ #define DPRINT_L1(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC: "fmt, ## args); } while (0)
+ #define DPRINT_L2(fmt, args...) do { } while (0)
+ #define ERRPRINT(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC ERROR: "fmt, ## args); } while (0)
+#else
+ #define DPRINT_L1(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC: "fmt, ## args); } while (0)
+ #define DPRINT_L2(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC: "fmt, ## args); } while (0)
+ #define ERRPRINT(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC ERROR: "fmt, ## args); } while (0)
+#endif
+
+/* Default SD/MMC host controller features information, which will be
+ * presented in CAPABILITIES register of generic SD host controller at reset.
+ * If not stated otherwise:
+ * 0 - not supported, 1 - supported, other - prohibited.
+ */
+#define SDHC_CAPAB_64BITBUS 0ul /* 64-bit System Bus Support */
+#define SDHC_CAPAB_18V 1ul /* Voltage support 1.8v */
+#define SDHC_CAPAB_30V 0ul /* Voltage support 3.0v */
+#define SDHC_CAPAB_33V 1ul /* Voltage support 3.3v */
+#define SDHC_CAPAB_SUSPRESUME 0ul /* Suspend/resume support */
+#define SDHC_CAPAB_SDMA 1ul /* SDMA support */
+#define SDHC_CAPAB_HIGHSPEED 1ul /* High speed support */
+#define SDHC_CAPAB_ADMA1 1ul /* ADMA1 support */
+#define SDHC_CAPAB_ADMA2 1ul /* ADMA2 support */
+/* Maximum host controller R/W buffers size
+ * Possible values: 512, 1024, 2048 bytes */
+#define SDHC_CAPAB_MAXBLOCKLENGTH 512ul
+/* Maximum clock frequency for SDclock in MHz
+ * value in range 10-63 MHz, 0 - not defined */
+#define SDHC_CAPAB_BASECLKFREQ 0ul
+#define SDHC_CAPAB_TOUNIT 1ul /* Timeout clock unit 0 - kHz, 1 - MHz */
+/* Timeout clock frequency 1-63, 0 - not defined */
+#define SDHC_CAPAB_TOCLKFREQ 0ul
+
+/* Now check all parameters and calculate CAPABILITIES REGISTER value */
+#if SDHC_CAPAB_64BITBUS > 1 || SDHC_CAPAB_18V > 1 || SDHC_CAPAB_30V > 1 || \
+ SDHC_CAPAB_33V > 1 || SDHC_CAPAB_SUSPRESUME > 1 || SDHC_CAPAB_SDMA > 1 || \
+ SDHC_CAPAB_HIGHSPEED > 1 || SDHC_CAPAB_ADMA2 > 1 || SDHC_CAPAB_ADMA1 > 1 ||\
+ SDHC_CAPAB_TOUNIT > 1
+#error Capabilities features can have value 0 or 1 only!
+#endif
+
+#if SDHC_CAPAB_MAXBLOCKLENGTH == 512
+#define MAX_BLOCK_LENGTH 0ul
+#elif SDHC_CAPAB_MAXBLOCKLENGTH == 1024
+#define MAX_BLOCK_LENGTH 1ul
+#elif SDHC_CAPAB_MAXBLOCKLENGTH == 2048
+#define MAX_BLOCK_LENGTH 2ul
+#else
+#error Max host controller block size can have value 512, 1024 or 2048 only!
+#endif
+
+#if (SDHC_CAPAB_BASECLKFREQ > 0 && SDHC_CAPAB_BASECLKFREQ < 10) || \
+ SDHC_CAPAB_BASECLKFREQ > 63
+#error SDclock frequency can have value in range 0, 10-63 only!
+#endif
+
+#if SDHC_CAPAB_TOCLKFREQ > 63
+#error Timeout clock frequency can have value in range 0-63 only!
+#endif
+
+#define SDHC_CAPAB_REG_DEFAULT \
+ ((SDHC_CAPAB_64BITBUS << 28) | (SDHC_CAPAB_18V << 26) | \
+ (SDHC_CAPAB_30V << 25) | (SDHC_CAPAB_33V << 24) | \
+ (SDHC_CAPAB_SUSPRESUME << 23) | (SDHC_CAPAB_SDMA << 22) | \
+ (SDHC_CAPAB_HIGHSPEED << 21) | (SDHC_CAPAB_ADMA1 << 20) | \
+ (SDHC_CAPAB_ADMA2 << 19) | (MAX_BLOCK_LENGTH << 16) | \
+ (SDHC_CAPAB_BASECLKFREQ << 8) | (SDHC_CAPAB_TOUNIT << 7) | \
+ (SDHC_CAPAB_TOCLKFREQ))
+
+#define MASKED_WRITE(reg, mask, val) (reg = (reg & (mask)) | (val))
+
+static void sdhci_raise_insertion_irq(void *opaque)
+{
+ SDHCIState *s = (SDHCIState *)opaque;
+ bool int_raised = false;
+
+ if (s->norintsts & SDHC_NIS_REMOVE) {
+ qemu_mod_timer(s->insert_timer,
+ qemu_get_clock_ns(vm_clock) + SDHC_INSERTION_DELAY);
+ } else {
+ s->prnsts = 0x1ff0000;
+ if (s->norintstsen & SDHC_NISEN_INSERT) {
+ s->norintsts |= SDHC_NIS_INSERT;
+ int_raised = (s->norintsigen & SDHC_NORINTSIG_INSERT) ||
+ (s->wakcon & SDHC_WKUP_ON_INS);
+ }
+
+ if (int_raised) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, int_raised);
+ }
+}
+
+static void sdhci_insert_eject_cb(void *opaque, int irq, int level)
+{
+ SDHCIState *s = (SDHCIState *)opaque;
+ DPRINT_L1("Card state changed: %s!\n", level ? "insert" : "eject");
+ bool int_raised = false;
+
+ if ((s->norintsts & SDHC_NIS_REMOVE) && level) {
+ /* Give target some time to notice card ejection */
+ qemu_mod_timer(s->insert_timer,
+ qemu_get_clock_ns(vm_clock) + SDHC_INSERTION_DELAY);
+ } else {
+ if (level) {
+ s->prnsts = 0x1ff0000;
+ if (s->norintstsen & SDHC_NISEN_INSERT) {
+ s->norintsts |= SDHC_NIS_INSERT;
+ int_raised = (s->norintsigen & SDHC_NORINTSIG_INSERT) ||
+ (s->wakcon & SDHC_WKUP_ON_INS);
+ }
+ } else {
+ s->prnsts = 0x1fa0000;
+ s->pwrcon &= ~SDHC_POWER_ON;
+ s->clkcon &= ~SDHC_CLOCK_SDCLK_EN;
+ if (s->norintstsen & SDHC_NISEN_REMOVE) {
+ s->norintsts |= SDHC_NIS_REMOVE;
+ int_raised = (s->norintsigen & SDHC_NORINTSIG_REMOVE) ||
+ (s->wakcon & SDHC_WKUP_ON_RMV);
+ }
+ }
+
+ if (int_raised) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, int_raised);
+ }
+}
+
+static void sdhci_card_readonly_cb(void *opaque, int irq, int level)
+{
+ SDHCIState *s = (SDHCIState *)opaque;
+
+ if (level) {
+ s->prnsts &= ~SDHC_WRITE_PROTECT;
+ } else {
+ /* Write enabled */
+ s->prnsts |= SDHC_WRITE_PROTECT;
+ }
+}
+
+static void sdhci_reset(SDHCIState *s)
+{
+ qemu_del_timer(s->insert_timer);
+ /* Set all registers to 0. Capabilities registers are not cleared
+ * and assumed to always preserve their value, given to them during
+ * initialization */
+ memset(&s->sdmasysad, 0, (uintptr_t)&s->capareg - (uintptr_t)&s->sdmasysad);
+
+ sd_set_cb(s->card, s->ro_cb, s->eject_cb);
+ s->data_count = 0;
+ s->stopped_state = sdhc_not_stopped;
+}
+
+static void sdhci_send_command(SDHCIState *s)
+{
+ SDRequest request;
+ uint8_t response[16];
+ int rlen;
+
+ s->errintsts = 0;
+ s->acmd12errsts = 0;
+ request.cmd = s->cmdreg >> 8;
+ request.arg = s->argument;
+ DPRINT_L1("sending CMD%u ARG[0x%08x]\n", request.cmd, request.arg);
+ rlen = sd_do_command(s->card, &request, response);
+
+ if (s->cmdreg & SDHC_CMD_RESPONSE) {
+ if (rlen == 4) {
+ s->rspreg[0] = (response[0] << 24) | (response[1] << 16) |
+ (response[2] << 8) | response[3];
+ s->rspreg[1] = s->rspreg[2] = s->rspreg[3] = 0;
+ DPRINT_L1("Response: RSPREG[31..0]=0x%08x\n", s->rspreg[0]);
+ } else if (rlen == 16) {
+ s->rspreg[0] = (response[11] << 24) | (response[12] << 16) |
+ (response[13] << 8) | response[14];
+ s->rspreg[1] = (response[7] << 24) | (response[8] << 16) |
+ (response[9] << 8) | response[10];
+ s->rspreg[2] = (response[3] << 24) | (response[4] << 16) |
+ (response[5] << 8) | response[6];
+ s->rspreg[3] = (response[0] << 16) | (response[1] << 8) |
+ response[2];
+ DPRINT_L1("Response received:\n RSPREG[127..96]=0x%08x, RSPREG[95.."
+ "64]=0x%08x,\n RSPREG[63..32]=0x%08x, RSPREG[31..0]=0x%08x\n",
+ s->rspreg[3], s->rspreg[2], s->rspreg[1], s->rspreg[0]);
+ } else {
+ ERRPRINT("Timeout waiting for command response\n");
+ if (s->errintstsen & SDHC_EISEN_CMDTIMEOUT) {
+ s->errintsts |= SDHC_EIS_CMDTIMEOUT;
+ s->norintsts |= SDHC_NIS_ERR;
+ }
+ }
+
+ if ((s->norintstsen & SDHC_NISEN_TRSCMP) &&
+ (s->cmdreg & SDHC_CMD_RESPONSE) == SDHC_CMD_RSP_WITH_BUSY) {
+ s->norintsts |= SDHC_NIS_TRSCMP;
+ }
+ } else if (rlen != 0 && (s->errintstsen & SDHC_EISEN_CMDIDX)) {
+ s->errintsts |= SDHC_EIS_CMDIDX;
+ s->norintsts |= SDHC_NIS_ERR;
+ }
+
+ if (s->norintstsen & SDHC_NISEN_CMDCMP) {
+ s->norintsts |= SDHC_NIS_CMDCMP;
+ }
+
+ if ((s->norintsts & s->norintsigen) || (s->errintsts & s->errintsigen)) {
+ s->slotint = 1;
+ }
+
+ qemu_set_irq(s->irq, s->slotint);
+
+ if (s->blksize && (s->cmdreg & SDHC_CMD_DATA_PRESENT)) {
+ SDHCI_GET_CLASS(s)->start_data_transfer(s);
+ }
+}
+
+static void sdhci_end_transfer(SDHCIState *s)
+{
+ /* Automatically send CMD12 to stop transfer if AutoCMD12 enabled */
+ if ((s->trnmod & SDHC_TRNS_ACMD12) != 0) {
+ SDRequest request;
+ uint8_t response[16];
+
+ request.cmd = 0x0C;
+ request.arg = 0;
+ DPRINT_L1("Automatically issue CMD%d %08x\n", request.cmd, request.arg);
+ sd_do_command(s->card, &request, response);
+ /* Auto CMD12 response goes to the upper Response register */
+ s->rspreg[3] = (response[0] << 24) | (response[1] << 16) |
+ (response[2] << 8) | response[3];
+ }
+
+ s->prnsts &= ~(SDHC_DOING_READ | SDHC_DOING_WRITE |
+ SDHC_DAT_LINE_ACTIVE | SDHC_DATA_INHIBIT |
+ SDHC_SPACE_AVAILABLE | SDHC_DATA_AVAILABLE);
+
+ if (s->norintstsen & SDHC_NISEN_TRSCMP) {
+ s->norintsts |= SDHC_NIS_TRSCMP;
+ }
+
+ if (s->norintsigen & s->norintsts) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->norintsigen & s->norintsts);
+}
+
+/*
+ * Programmed i/o data transfer
+ */
+
+/* Fill host controller's read buffer with BLKSIZE bytes of data from card */
+static void sdhci_read_block_from_card(SDHCIState *s)
+{
+ int index = 0;
+
+ if ((s->trnmod & SDHC_TRNS_MULTI) &&
+ (s->trnmod & SDHC_TRNS_BLK_CNT_EN) && (s->blkcnt == 0)) {
+ return;
+ }
+
+ for (index = 0; index < (s->blksize & 0x0fff); index++) {
+ s->fifo_buffer[index] = sd_read_data(s->card);
+ }
+
+ /* New data now available for READ through Buffer Port Register */
+ s->prnsts |= SDHC_DATA_AVAILABLE;
+ if (s->norintstsen & SDHC_NISEN_RBUFRDY) {
+ s->norintsts |= SDHC_NIS_RBUFRDY;
+ }
+
+ /* Clear DAT line active status if that was the last block */
+ if ((s->trnmod & SDHC_TRNS_MULTI) == 0 ||
+ ((s->trnmod & SDHC_TRNS_MULTI) && s->blkcnt == 1)) {
+ s->prnsts &= ~SDHC_DAT_LINE_ACTIVE;
+ }
+
+ /* If stop at block gap request was set and it's not the last block of
+ * data - generate Block Event interrupt */
+ if (s->stopped_state == sdhc_gap_read && (s->trnmod & SDHC_TRNS_MULTI) &&
+ s->blkcnt != 1) {
+ s->prnsts &= ~SDHC_DAT_LINE_ACTIVE;
+ if (s->norintstsen & SDHC_EISEN_BLKGAP) {
+ s->norintsts |= SDHC_EIS_BLKGAP;
+ }
+ }
+
+ if (s->norintsts & s->norintsigen) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->norintsts & s->norintsigen);
+}
+
+/* Read @size byte of data from host controller @s BUFFER DATA PORT register */
+static uint32_t sdhci_read_dataport(SDHCIState *s, unsigned size)
+{
+ uint32_t value = 0;
+ int i;
+
+ /* first check that a valid data exists in host controller input buffer */
+ if ((s->prnsts & SDHC_DATA_AVAILABLE) == 0) {
+ ERRPRINT("Trying to read from empty buffer\n");
+ return 0;
+ }
+
+ for (i = 0; i < size; i++) {
+ value |= s->fifo_buffer[s->data_count] << i * 8;
+ s->data_count++;
+ /* check if we've read all valid data (blksize bytes) from buffer */
+ if ((s->data_count) >= (s->blksize & 0x0fff)) {
+ DPRINT_L2("All %u bytes of data have been read from input buffer\n",
+ s->data_count);
+ s->prnsts &= ~SDHC_DATA_AVAILABLE; /* no more data in a buffer */
+ s->data_count = 0; /* next buff read must start at position [0] */
+
+ if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ s->blkcnt--;
+ }
+
+ /* if that was the last block of data */
+ if ((s->trnmod & SDHC_TRNS_MULTI) == 0 ||
+ ((s->trnmod & SDHC_TRNS_BLK_CNT_EN) && (s->blkcnt == 0)) ||
+ /* stop at gap request */
+ (s->stopped_state == sdhc_gap_read &&
+ !(s->prnsts & SDHC_DAT_LINE_ACTIVE))) {
+ SDHCI_GET_CLASS(s)->end_data_transfer(s);
+ } else { /* if there are more data, read next block from card */
+ SDHCI_GET_CLASS(s)->read_block_from_card(s);
+ }
+ break;
+ }
+ }
+
+ return value;
+}
+
+/* Write data from host controller FIFO to card */
+static void sdhci_write_block_to_card(SDHCIState *s)
+{
+ int index = 0;
+
+ if (s->prnsts & SDHC_SPACE_AVAILABLE) {
+ if (s->norintstsen & SDHC_NISEN_WBUFRDY) {
+ s->norintsts |= SDHC_NIS_WBUFRDY;
+ }
+ if (s->norintsts & s->norintsigen) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->norintsigen & s->norintsts);
+ return;
+ }
+
+ if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ if (s->blkcnt == 0) {
+ return;
+ } else {
+ s->blkcnt--;
+ }
+ }
+
+ for (index = 0; index < (s->blksize & 0x0fff); index++) {
+ sd_write_data(s->card, s->fifo_buffer[index]);
+ }
+
+ /* Next data can be written through BUFFER DATORT register */
+ s->prnsts |= SDHC_SPACE_AVAILABLE;
+ if (s->norintstsen & SDHC_NISEN_WBUFRDY) {
+ s->norintsts |= SDHC_NIS_WBUFRDY;
+ }
+
+ /* Finish transfer if that was the last block of data */
+ if ((s->trnmod & SDHC_TRNS_MULTI) == 0 ||
+ ((s->trnmod & SDHC_TRNS_MULTI) &&
+ (s->trnmod & SDHC_TRNS_BLK_CNT_EN) && (s->blkcnt == 0))) {
+ SDHCI_GET_CLASS(s)->end_data_transfer(s);
+ }
+
+ /* Generate Block Gap Event if requested and if not the last block */
+ if (s->stopped_state == sdhc_gap_write && (s->trnmod & SDHC_TRNS_MULTI) &&
+ s->blkcnt > 0) {
+ s->prnsts &= ~SDHC_DOING_WRITE;
+ if (s->norintstsen & SDHC_EISEN_BLKGAP) {
+ s->norintsts |= SDHC_EIS_BLKGAP;
+ }
+ SDHCI_GET_CLASS(s)->end_data_transfer(s);
+ }
+
+ if (s->norintsts & s->norintsigen) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->norintsigen & s->norintsts);
+}
+
+/* Write @size bytes of @value data to host controller @s Buffer Data Port
+ * register */
+static void sdhci_write_dataport(SDHCIState *s, uint32_t value, unsigned size)
+{
+ unsigned i;
+
+ /* Check that there is free space left in a buffer */
+ if (!(s->prnsts & SDHC_SPACE_AVAILABLE)) {
+ ERRPRINT("Can't write to data buffer: buffer full\n");
+ return;
+ }
+
+ for (i = 0; i < size; i++) {
+ s->fifo_buffer[s->data_count] = value & 0xFF;
+ s->data_count++;
+ value >>= 8;
+ if (s->data_count >= (s->blksize & 0x0fff)) {
+ DPRINT_L2("write buffer filled with %u bytes of data\n",
+ s->data_count);
+ s->data_count = 0;
+ s->prnsts &= ~SDHC_SPACE_AVAILABLE;
+ if (s->prnsts & SDHC_DOING_WRITE) {
+ SDHCI_GET_CLASS(s)->write_block_to_card(s);
+ }
+ }
+ }
+}
+
+/*
+ * Single DMA data transfer
+ */
+
+/* Multi block SDMA transfer */
+static void sdhci_sdma_transfer_multi_blocks(SDHCIState *s)
+{
+ bool page_aligned = false;
+ unsigned int n, begin;
+ const uint16_t block_size = s->blksize & 0x0fff;
+ uint32_t boundary_chk = 1 << (((s->blksize & 0xf000) >> 12) + 12);
+ uint32_t boundary_count = boundary_chk - (s->sdmasysad % boundary_chk);
+
+ /* XXX: Some sd/mmc drivers (for example, u-boot-slp) do not account for
+ * possible stop at page boundary if initial address is not page aligned,
+ * allow them to work properly */
+ if ((s->sdmasysad % boundary_chk) == 0) {
+ page_aligned = true;
+ }
+
+ if (s->trnmod & SDHC_TRNS_READ) {
+ s->prnsts |= SDHC_DOING_READ | SDHC_DATA_INHIBIT |
+ SDHC_DAT_LINE_ACTIVE;
+ while (s->blkcnt) {
+ if (s->data_count == 0) {
+ for (n = 0; n < block_size; n++) {
+ s->fifo_buffer[n] = sd_read_data(s->card);
+ }
+ }
+ begin = s->data_count;
+ if (((boundary_count + begin) < block_size) && page_aligned) {
+ s->data_count = boundary_count + begin;
+ boundary_count = 0;
+ } else {
+ s->data_count = block_size;
+ boundary_count -= block_size - begin;
+ if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ s->blkcnt--;
+ }
+ }
+ cpu_physical_memory_write(s->sdmasysad, &s->fifo_buffer[begin],
+ s->data_count - begin);
+ s->sdmasysad += s->data_count - begin;
+ if (s->data_count == block_size) {
+ s->data_count = 0;
+ }
+ if (page_aligned && boundary_count == 0) {
+ break;
+ }
+ }
+ } else {
+ s->prnsts |= SDHC_DOING_WRITE | SDHC_DATA_INHIBIT |
+ SDHC_DAT_LINE_ACTIVE;
+ while (s->blkcnt) {
+ begin = s->data_count;
+ if (((boundary_count + begin) < block_size) && page_aligned) {
+ s->data_count = boundary_count + begin;
+ boundary_count = 0;
+ } else {
+ s->data_count = block_size;
+ boundary_count -= block_size - begin;
+ }
+ cpu_physical_memory_read(s->sdmasysad,
+ &s->fifo_buffer[begin], s->data_count);
+ s->sdmasysad += s->data_count - begin;
+ if (s->data_count == block_size) {
+ for (n = 0; n < block_size; n++) {
+ sd_write_data(s->card, s->fifo_buffer[n]);
+ }
+ s->data_count = 0;
+ if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ s->blkcnt--;
+ }
+ }
+ if (page_aligned && boundary_count == 0) {
+ break;
+ }
+ }
+ }
+
+ if (s->blkcnt == 0) {
+ SDHCI_GET_CLASS(s)->end_data_transfer(s);
+ } else {
+ if (s->norintstsen & SDHC_NISEN_DMA) {
+ s->norintsts |= SDHC_NIS_DMA;
+ }
+
+ if (s->norintsts & s->norintsigen) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->norintsigen & s->norintsts);
+ }
+}
+
+/* single block SDMA transfer */
+static void sdhci_sdma_transfer_single_block(SDHCIState *s)
+{
+ int n;
+ uint32_t datacnt = s->blksize & 0x0fff;
+
+ if (s->trnmod & SDHC_TRNS_READ) {
+ for (n = 0; n < datacnt; n++) {
+ s->fifo_buffer[n] = sd_read_data(s->card);
+ }
+ cpu_physical_memory_write(s->sdmasysad, s->fifo_buffer, datacnt);
+ } else {
+ cpu_physical_memory_read(s->sdmasysad, s->fifo_buffer, datacnt);
+ for (n = 0; n < datacnt; n++) {
+ sd_write_data(s->card, s->fifo_buffer[n]);
+ }
+ }
+
+ if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ s->blkcnt--;
+ }
+
+ SDHCI_GET_CLASS(s)->end_data_transfer(s);
+}
+
+typedef struct ADMADescr {
+ target_phys_addr_t addr;
+ uint16_t length;
+ uint8_t attr;
+ uint8_t incr;
+} ADMADescr;
+
+static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
+{
+ uint32_t adma1 = 0;
+ uint64_t adma2 = 0;
+ target_phys_addr_t entry_addr = (target_phys_addr_t)s->admasysaddr;
+
+ switch (SDHC_DMA_TYPE(s->hostctl)) {
+ case SDHC_CTRL_ADMA2_32:
+ cpu_physical_memory_read(entry_addr, (uint8_t *)&adma2, sizeof(adma2));
+ dscr->addr = (target_phys_addr_t)((adma2 >> 32) & 0xfffffffc);
+ dscr->length = (uint16_t)((adma2 >> 16) & 0xFFFF);
+ dscr->attr = (uint8_t)(adma2 & 0x3F);
+ dscr->incr = 8;
+ break;
+ case SDHC_CTRL_ADMA1_32:
+ cpu_physical_memory_read(entry_addr, (uint8_t *)&adma1, sizeof(adma1));
+ dscr->addr = (target_phys_addr_t)(adma1 & 0xFFFFF000);
+ dscr->attr = (uint8_t)(adma1 & 0x3F);
+ dscr->incr = 4;
+ if ((dscr->attr & SDHC_ADMA_ATTR_ACT_MASK) == SDHC_ADMA_ATTR_SET_LEN) {
+ dscr->length = (uint16_t)((adma1 >> 12) & 0xFFFF);
+ } else {
+ dscr->length = 4096;
+ }
+ break;
+ case SDHC_CTRL_ADMA2_64:
+ cpu_physical_memory_read(entry_addr, (uint8_t *)(&dscr->attr), 1);
+ cpu_physical_memory_read(entry_addr + 2, (uint8_t *)(&dscr->length), 2);
+ cpu_physical_memory_read(entry_addr + 4, (uint8_t *)(&dscr->addr), 8);
+ dscr->attr &= 0xfffffff8;
+ dscr->incr = 12;
+ break;
+ }
+}
+
+/* Advanced DMA data transfer */
+static void sdhci_start_adma(SDHCIState *s)
+{
+ unsigned int n, begin, length;
+ const uint16_t block_size = s->blksize & 0x0fff;
+ ADMADescr dscr;
+ s->admaerr &= ~SDHC_ADMAERR_LENGTH_MISMATCH;
+
+ while (1) {
+ get_adma_description(s, &dscr);
+ DPRINT_L2("ADMA loop: addr=" TARGET_FMT_plx ", len=%d, attr=%x\n",
+ dscr.addr, dscr.length, dscr.attr);
+
+ if ((dscr.attr & SDHC_ADMA_ATTR_VALID) == 0) {
+ /* Indicate that error occurred in ST_FDS state */
+ s->admaerr &= ~SDHC_ADMAERR_STATE_MASK;
+ s->admaerr |= SDHC_ADMAERR_STATE_ST_FDS;
+
+ /* Generate ADMA error interrupt */
+ if (s->errintstsen & SDHC_EISEN_ADMAERR) {
+ s->errintsts |= SDHC_EIS_ADMAERR;
+ s->norintsts |= SDHC_NIS_ERR;
+ }
+
+ if (s->errintsigen & s->errintsts) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->errintsigen & s->errintsts);
+ break;
+ }
+
+ length = dscr.length ? dscr.length : 65536;
+
+ switch (dscr.attr & SDHC_ADMA_ATTR_ACT_MASK) {
+ case SDHC_ADMA_ATTR_ACT_TRAN: /* data transfer */
+
+ if (s->trnmod & SDHC_TRNS_READ) {
+ while (length) {
+ if (s->data_count == 0) {
+ for (n = 0; n < block_size; n++) {
+ s->fifo_buffer[n] = sd_read_data(s->card);
+ }
+ }
+ begin = s->data_count;
+ if ((length + begin) < block_size) {
+ s->data_count = length + begin;
+ length = 0;
+ } else {
+ s->data_count = block_size;
+ length -= block_size - begin;
+ }
+ cpu_physical_memory_write(dscr.addr, &s->fifo_buffer[begin],
+ s->data_count - begin);
+ dscr.addr += s->data_count - begin;
+ if (s->data_count == block_size) {
+ s->data_count = 0;
+ if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ s->blkcnt--;
+ if (s->blkcnt == 0) {
+ break;
+ }
+ }
+ }
+ }
+ } else {
+ while (length) {
+ begin = s->data_count;
+ if ((length + begin) < block_size) {
+ s->data_count = length + begin;
+ length = 0;
+ } else {
+ s->data_count = block_size;
+ length -= block_size - begin;
+ }
+ cpu_physical_memory_read(dscr.addr,
+ &s->fifo_buffer[begin], s->data_count);
+ dscr.addr += s->data_count - begin;
+ if (s->data_count == block_size) {
+ for (n = 0; n < block_size; n++) {
+ sd_write_data(s->card, s->fifo_buffer[n]);
+ }
+ s->data_count = 0;
+ if (s->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ s->blkcnt--;
+ if (s->blkcnt == 0) {
+ break;
+ }
+ }
+ }
+ }
+ }
+ s->admasysaddr += dscr.incr;
+ break;
+ case SDHC_ADMA_ATTR_ACT_LINK: /* link to next descriptor table */
+ s->admasysaddr = dscr.addr;
+ DPRINT_L1("ADMA link: admasysaddr=0x%lx\n", s->admasysaddr);
+ break;
+ default:
+ s->admasysaddr += dscr.incr;
+ break;
+ }
+
+ /* ADMA transfer terminates if blkcnt == 0 or by END attribute */
+ if (((s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&
+ (s->blkcnt == 0)) || (dscr.attr & SDHC_ADMA_ATTR_END)) {
+ DPRINT_L2("ADMA transfer completed\n");
+ if (length || ((dscr.attr & SDHC_ADMA_ATTR_END) &&
+ (s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&
+ s->blkcnt != 0) || ((s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&
+ s->blkcnt == 0 && (dscr.attr & SDHC_ADMA_ATTR_END) == 0)) {
+ ERRPRINT("SD/MMC host ADMA length mismatch\n");
+ s->admaerr |= SDHC_ADMAERR_LENGTH_MISMATCH |
+ SDHC_ADMAERR_STATE_ST_TFR;
+ if (s->errintstsen & SDHC_EISEN_ADMAERR) {
+ ERRPRINT("Set ADMA error flag\n");
+ s->errintsts |= SDHC_EIS_ADMAERR;
+ s->norintsts |= SDHC_NIS_ERR;
+ }
+
+ if (s->errintsigen & s->errintsts) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->errintsigen & s->errintsts);
+ }
+ SDHCI_GET_CLASS(s)->end_data_transfer(s);
+ break;
+ }
+
+ if (dscr.attr & SDHC_ADMA_ATTR_INT) {
+ DPRINT_L1("ADMA interrupt: admasysaddr=0x%lx\n", s->admasysaddr);
+ if (s->norintstsen & SDHC_NISEN_DMA) {
+ s->norintsts |= SDHC_NIS_DMA;
+ }
+
+ if (s->norintsts & s->norintsigen) {
+ s->slotint = 1;
+ }
+ qemu_set_irq(s->irq, s->norintsigen & s->norintsts);
+ break;
+ }
+ }
+}
+
+/* Perform data transfer according to controller configuration */
+static void sdhci_start_transfer(SDHCIState *s)
+{
+ SDHCIClass *k = SDHCI_GET_CLASS(s);
+ s->data_count = 0;
+
+ if (s->trnmod & SDHC_TRNS_DMA) {
+ switch (SDHC_DMA_TYPE(s->hostctl)) {
+ case SDHC_CTRL_SDMA:
+ if ((s->trnmod & SDHC_TRNS_MULTI) &&
+ (!(s->trnmod & SDHC_TRNS_BLK_CNT_EN) || s->blkcnt == 0)) {
+ break;
+ }
+
+ if ((s->blkcnt == 1) || !(s->trnmod & SDHC_TRNS_MULTI)) {
+ k->do_sdma_single(s);
+ } else {
+ k->do_sdma_multi(s);
+ }
+
+ break;
+ case SDHC_CTRL_ADMA1_32:
+ if (!(s->capareg & SDHC_CAN_DO_ADMA1)) {
+ ERRPRINT("ADMA1 not supported\n");
+ break;
+ }
+
+ k->do_adma(s);
+ break;
+ case SDHC_CTRL_ADMA2_32:
+ if (!(s->capareg & SDHC_CAN_DO_ADMA2)) {
+ ERRPRINT("ADMA2 not supported\n");
+ break;
+ }
+
+ k->do_adma(s);
+ break;
+ case SDHC_CTRL_ADMA2_64:
+ if (!(s->capareg & SDHC_CAN_DO_ADMA2) ||
+ !(s->capareg & SDHC_64_BIT_BUS_SUPPORT)) {
+ ERRPRINT("64 bit ADMA not supported\n");
+ break;
+ }
+
+ k->do_adma(s);
+ break;
+ default:
+ ERRPRINT("Unsupported DMA type\n");
+ break;
+ }
+ } else {
+ if ((s->trnmod & SDHC_TRNS_READ) && sd_data_ready(s->card)) {
+ s->prnsts |= SDHC_DOING_READ | SDHC_DATA_INHIBIT |
+ SDHC_DAT_LINE_ACTIVE;
+ SDHCI_GET_CLASS(s)->read_block_from_card(s);
+ } else {
+ s->prnsts |= SDHC_DOING_WRITE | SDHC_DAT_LINE_ACTIVE |
+ SDHC_SPACE_AVAILABLE | SDHC_DATA_INHIBIT;
+ SDHCI_GET_CLASS(s)->write_block_to_card(s);
+ }
+ }
+}
+
+static bool sdhci_can_issue_command(SDHCIState *s)
+{
+ if (!SDHC_CLOCK_IS_ON(s->clkcon) || !(s->pwrcon & SDHC_POWER_ON) ||
+ (((s->prnsts & SDHC_DATA_INHIBIT) || s->stopped_state) &&
+ ((s->cmdreg & SDHC_CMD_DATA_PRESENT) ||
+ ((s->cmdreg & SDHC_CMD_RESPONSE) == SDHC_CMD_RSP_WITH_BUSY &&
+ !(SDHC_COMMAND_TYPE(s->cmdreg) == SDHC_CMD_ABORT))))) {
+ return false;
+ }
+
+ return true;
+}
+
+/* The Buffer Data Port register must be accessed in sequential and
+ * continuous manner */
+static inline bool
+sdhci_buff_access_is_sequential(SDHCIState *s, unsigned byte_num)
+{
+ if ((s->data_count & 0x3) != byte_num) {
+ ERRPRINT("Non-sequential access to Buffer Data Port register"
+ "is prohibited\n");
+ return false;
+ }
+ return true;
+}
+
+static uint32_t sdhci_read(SDHCIState *s, unsigned int offset, unsigned size)
+{
+ uint32_t ret = 0;
+
+ switch (offset & ~0x3) {
+ case SDHC_SYSAD:
+ ret = s->sdmasysad;
+ break;
+ case SDHC_BLKSIZE:
+ ret = s->blksize | (s->blkcnt << 16);
+ break;
+ case SDHC_ARGUMENT:
+ ret = s->argument;
+ break;
+ case SDHC_TRNMOD:
+ ret = s->trnmod | (s->cmdreg << 16);
+ break;
+ case SDHC_RSPREG0 ... SDHC_RSPREG3:
+ ret = s->rspreg[((offset & ~0x3) - SDHC_RSPREG0) >> 2];
+ break;
+ case SDHC_BDATA:
+ if (sdhci_buff_access_is_sequential(s, offset - SDHC_BDATA)) {
+ ret = SDHCI_GET_CLASS(s)->bdata_read(s, size);
+ DPRINT_L2("read %ub: addr[0x%04x] -> %u\n", size, offset, ret);
+ return ret;
+ }
+ break;
+ case SDHC_PRNSTS:
+ ret = s->prnsts;
+ break;
+ case SDHC_HOSTCTL:
+ ret = s->hostctl | (s->pwrcon << 8) | (s->blkgap << 16) |
+ (s->wakcon << 24);
+ break;
+ case SDHC_CLKCON:
+ ret = s->clkcon | (s->timeoutcon << 16);
+ break;
+ case SDHC_NORINTSTS:
+ ret = s->norintsts | (s->errintsts << 16);
+ break;
+ case SDHC_NORINTSTSEN:
+ ret = s->norintstsen | (s->errintstsen << 16);
+ break;
+ case SDHC_NORINTSIGEN:
+ ret = s->norintsigen | (s->errintsigen << 16);
+ break;
+ case SDHC_ACMD12ERRSTS:
+ ret = s->acmd12errsts;
+ break;
+ case SDHC_CAPAREG:
+ ret = s->capareg;
+ break;
+ case SDHC_MAXCURR:
+ ret = s->maxcurr;
+ break;
+ case SDHC_ADMAERR:
+ ret = s->admaerr;
+ break;
+ case SDHC_ADMASYSADDR:
+ ret = (uint32_t)s->admasysaddr;
+ break;
+ case SDHC_ADMASYSADDR + 4:
+ ret = (uint32_t)(s->admasysaddr >> 32);
+ break;
+ case SDHC_SLOT_INT_STATUS:
+ ret = s->slotint | (SD_HOST_SPECv2_VERS << 16);
+ break;
+ default:
+ ERRPRINT("bad %ub read: addr[0x%04x]\n", size, offset);
+ break;
+ }
+
+ ret >>= (offset & 0x3) * 8;
+ ret &= (1ULL << (size * 8)) - 1;
+ DPRINT_L2("read %ub: addr[0x%04x] -> %u(0x%x)\n", size, offset, ret, ret);
+ return ret;
+}
+
+static void sdhci_update_slotint(SDHCIState *s)
+{
+ if ((s->norintsts & s->norintsigen) || (s->errintsts & s->errintsigen) ||
+ ((s->norintsts & SDHC_NIS_INSERT) && (s->wakcon & SDHC_WKUP_ON_INS)) ||
+ ((s->norintsts & SDHC_NIS_REMOVE) && (s->wakcon & SDHC_WKUP_ON_RMV))) {
+ s->slotint = 1;
+ } else {
+ s->slotint = 0;
+ }
+}
+
+static inline void sdhci_blkgap_write(SDHCIState *s, uint8_t value)
+{
+ if ((value & SDHC_STOP_AT_GAP_REQ) && (s->blkgap & SDHC_STOP_AT_GAP_REQ)) {
+ return;
+ }
+ s->blkgap = value & SDHC_STOP_AT_GAP_REQ;
+
+ if ((value & SDHC_CONTINUE_REQ) && s->stopped_state &&
+ (s->blkgap & SDHC_STOP_AT_GAP_REQ) == 0) {
+ if (s->stopped_state == sdhc_gap_read) {
+ s->prnsts |= SDHC_DAT_LINE_ACTIVE | SDHC_DOING_READ;
+ SDHCI_GET_CLASS(s)->read_block_from_card(s);
+ } else {
+ s->prnsts |= SDHC_DAT_LINE_ACTIVE | SDHC_DOING_WRITE;
+ SDHCI_GET_CLASS(s)->write_block_to_card(s);
+ }
+ s->stopped_state = sdhc_not_stopped;
+ } else if (!s->stopped_state && (value & SDHC_STOP_AT_GAP_REQ)) {
+ if (s->prnsts & SDHC_DOING_READ) {
+ s->stopped_state = sdhc_gap_read;
+ } else if (s->prnsts & SDHC_DOING_WRITE) {
+ s->stopped_state = sdhc_gap_write;
+ }
+ }
+}
+
+static inline void sdhci_reset_write(SDHCIState *s, uint8_t value)
+{
+ switch (value) {
+ case SDHC_RESET_ALL:
+ DEVICE_GET_CLASS(s)->reset(DEVICE(s));
+ break;
+ case SDHC_RESET_CMD:
+ s->prnsts &= ~SDHC_CMD_INHIBIT;
+ s->norintsts &= ~SDHC_NIS_CMDCMP;
+ break;
+ case SDHC_RESET_DATA:
+ s->data_count = 0;
+ s->prnsts &= ~(SDHC_SPACE_AVAILABLE | SDHC_DATA_AVAILABLE |
+ SDHC_DOING_READ | SDHC_DOING_WRITE |
+ SDHC_DATA_INHIBIT | SDHC_DAT_LINE_ACTIVE);
+ s->blkgap &= ~(SDHC_STOP_AT_GAP_REQ | SDHC_CONTINUE_REQ);
+ s->stopped_state = sdhc_not_stopped;
+ s->norintsts &= ~(SDHC_NIS_WBUFRDY | SDHC_NIS_RBUFRDY |
+ SDHC_NIS_DMA | SDHC_NIS_TRSCMP | SDHC_NIS_BLKGAP);
+ break;
+ }
+}
+
+static void
+sdhci_write(SDHCIState *s, unsigned int offset, uint32_t value, unsigned size)
+{
+ unsigned shift = 8 * (offset & 0x3);
+ uint32_t mask = ~(((1ULL << (size * 8)) - 1) << shift);
+ value <<= shift;
+
+ switch (offset & ~0x3) {
+ case SDHC_SYSAD:
+ s->sdmasysad = (s->sdmasysad & mask) | value;
+ MASKED_WRITE(s->sdmasysad, mask, value);
+ /* Writing to last byte of sdmasysad might trigger transfer */
+ if (!(mask & 0xFF000000) && TRANSFERRING_DATA(s->prnsts) && s->blkcnt &&
+ s->blksize && SDHC_DMA_TYPE(s->hostctl) == SDHC_CTRL_SDMA) {
+ SDHCI_GET_CLASS(s)->do_sdma_multi(s);
+ }
+ break;
+ case SDHC_BLKSIZE:
+ if (!TRANSFERRING_DATA(s->prnsts)) {
+ MASKED_WRITE(s->blksize, mask, value);
+ MASKED_WRITE(s->blkcnt, mask >> 16, value >> 16);
+ }
+ break;
+ case SDHC_ARGUMENT:
+ MASKED_WRITE(s->argument, mask, value);
+ break;
+ case SDHC_TRNMOD:
+ /* DMA can be enabled only if it is supported as indicated by
+ * capabilities register */
+ if (!(s->capareg & SDHC_CAN_DO_DMA)) {
+ value &= ~SDHC_TRNS_DMA;
+ }
+ MASKED_WRITE(s->trnmod, mask, value);
+ MASKED_WRITE(s->cmdreg, mask >> 16, value >> 16);
+
+ /* Writing to the upper byte of CMDREG triggers SD command generation */
+ if ((mask & 0xFF000000) || !SDHCI_GET_CLASS(s)->can_issue_command(s)) {
+ break;
+ }
+
+ SDHCI_GET_CLASS(s)->send_command(s);
+ break;
+ case SDHC_BDATA:
+ if (sdhci_buff_access_is_sequential(s, offset - SDHC_BDATA)) {
+ SDHCI_GET_CLASS(s)->bdata_write(s, value >> shift, size);
+ }
+ break;
+ case SDHC_HOSTCTL:
+ if (!(mask & 0xFF0000)) {
+ sdhci_blkgap_write(s, value >> 16);
+ }
+ MASKED_WRITE(s->hostctl, mask, value);
+ MASKED_WRITE(s->pwrcon, mask >> 8, value >> 8);
+ MASKED_WRITE(s->wakcon, mask >> 24, value >> 24);
+ if (!(s->prnsts & SDHC_CARD_PRESENT) || ((s->pwrcon >> 1) & 0x7) < 5 ||
+ !(s->capareg & (1 << (31 - ((s->pwrcon >> 1) & 0x7))))) {
+ s->pwrcon &= ~SDHC_POWER_ON;
+ }
+ break;
+ case SDHC_CLKCON:
+ if (!(mask & 0xFF000000)) {
+ sdhci_reset_write(s, value >> 24);
+ }
+ MASKED_WRITE(s->clkcon, mask, value);
+ MASKED_WRITE(s->timeoutcon, mask >> 16, value >> 16);
+ if (s->clkcon & SDHC_CLOCK_INT_EN) {
+ s->clkcon |= SDHC_CLOCK_INT_STABLE;
+ } else {
+ s->clkcon &= ~SDHC_CLOCK_INT_STABLE;
+ }
+ break;
+ case SDHC_NORINTSTS:
+ if (s->norintstsen & SDHC_NISEN_CARDINT) {
+ value &= ~SDHC_NIS_CARDINT;
+ }
+ s->norintsts &= mask | ~value;
+ s->errintsts &= (mask >> 16) | ~(value >> 16);
+ if (s->errintsts) {
+ s->norintsts |= SDHC_NIS_ERR;
+ } else {
+ s->norintsts &= ~SDHC_NIS_ERR;
+ }
+ sdhci_update_slotint(s);
+ qemu_set_irq(s->irq, s->slotint);
+ break;
+ case SDHC_NORINTSTSEN:
+ MASKED_WRITE(s->norintstsen, mask, value);
+ MASKED_WRITE(s->errintstsen, mask >> 16, value >> 16);
+ s->norintsts &= s->norintstsen;
+ s->errintsts &= s->errintstsen;
+ if (s->errintsts) {
+ s->norintsts |= SDHC_NIS_ERR;
+ } else {
+ s->norintsts &= ~SDHC_NIS_ERR;
+ }
+ sdhci_update_slotint(s);
+ qemu_set_irq(s->irq, s->slotint);
+ break;
+ case SDHC_NORINTSIGEN:
+ MASKED_WRITE(s->norintsigen, mask, value);
+ MASKED_WRITE(s->errintsigen, mask >> 16, value >> 16);
+ sdhci_update_slotint(s);
+ qemu_set_irq(s->irq, s->slotint);
+ break;
+ case SDHC_ADMAERR:
+ MASKED_WRITE(s->admaerr, mask, value);
+ break;
+ case SDHC_ADMASYSADDR:
+ s->admasysaddr = (s->admasysaddr & (0xFFFFFFFF00000000ULL |
+ (uint64_t)mask)) | (uint64_t)value;
+ break;
+ case SDHC_ADMASYSADDR + 4:
+ s->admasysaddr = (s->admasysaddr & (0x00000000FFFFFFFFULL |
+ ((uint64_t)mask << 32))) | ((uint64_t)value << 32);
+ break;
+ case SDHC_FEAER:
+ s->acmd12errsts |= value;
+ s->errintsts |= (value >> 16) & s->errintstsen;
+ if (s->acmd12errsts) {
+ s->errintsts |= SDHC_EIS_CMD12ERR;
+ }
+ if (s->errintsts) {
+ s->norintsts |= SDHC_NIS_ERR;
+ }
+ if (s->errintsigen & s->errintsts) {
+ s->slotint = 1;
+ qemu_irq_raise(s->irq);
+ }
+ break;
+ default:
+ ERRPRINT("bad %ub write offset: addr[0x%04x] <- %u(0x%x)\n",
+ size, offset, value >> shift, value >> shift);
+ break;
+ }
+ DPRINT_L2("write %ub: addr[0x%04x] <- %u(0x%x)\n",
+ size, offset, value >> shift, value >> shift);
+}
+
+static uint64_t
+sdhci_readfn(void *opaque, target_phys_addr_t offset, unsigned size)
+{
+ SDHCIState *s = (SDHCIState *)opaque;
+
+ return SDHCI_GET_CLASS(s)->mem_read(s, offset, size);
+}
+
+static void
+sdhci_writefn(void *opaque, target_phys_addr_t off, uint64_t val, unsigned sz)
+{
+ SDHCIState *s = (SDHCIState *)opaque;
+
+ SDHCI_GET_CLASS(s)->mem_write(s, off, val, sz);
+}
+
+static const MemoryRegionOps sdhci_mmio_ops = {
+ .read = sdhci_readfn,
+ .write = sdhci_writefn,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 4,
+ .unaligned = false
+ },
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static inline unsigned int sdhci_get_fifolen(SDHCIState *s)
+{
+ switch (SDHC_CAPAB_BLOCKSIZE(s->capareg)) {
+ case 0:
+ return 512;
+ case 1:
+ return 1024;
+ case 2:
+ return 2048;
+ default:
+ hw_error("SDHC: unsupported value for maximum block size\n");
+ return 0;
+ }
+}
+
+static void sdhci_initfn(Object *obj)
+{
+ SDHCIState *s = SDHCI(obj);
+ DriveInfo *di;
+
+ di = drive_get_next(IF_SD);
+ s->card = sd_init(di ? di->bdrv : NULL, 0);
+ s->eject_cb = qemu_allocate_irqs(sdhci_insert_eject_cb, s, 1)[0];
+ s->ro_cb = qemu_allocate_irqs(sdhci_card_readonly_cb, s, 1)[0];
+ sd_set_cb(s->card, s->ro_cb, s->eject_cb);
+
+ s->insert_timer = qemu_new_timer_ns(vm_clock, sdhci_raise_insertion_irq, s);
+}
+
+static void sdhci_uninitfn(Object *obj)
+{
+ SDHCIState *s = SDHCI(obj);
+
+ qemu_del_timer(s->insert_timer);
+ qemu_free_timer(s->insert_timer);
+ qemu_free_irqs(&s->eject_cb);
+ qemu_free_irqs(&s->ro_cb);
+
+ if (s->fifo_buffer) {
+ g_free(s->fifo_buffer);
+ s->fifo_buffer = NULL;
+ }
+}
+
+const VMStateDescription sdhci_vmstate = {
+ .name = "sdhci",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(sdmasysad, SDHCIState),
+ VMSTATE_UINT16(blksize, SDHCIState),
+ VMSTATE_UINT16(blkcnt, SDHCIState),
+ VMSTATE_UINT32(argument, SDHCIState),
+ VMSTATE_UINT16(trnmod, SDHCIState),
+ VMSTATE_UINT16(cmdreg, SDHCIState),
+ VMSTATE_UINT32_ARRAY(rspreg, SDHCIState, 4),
+ VMSTATE_UINT32(prnsts, SDHCIState),
+ VMSTATE_UINT8(hostctl, SDHCIState),
+ VMSTATE_UINT8(pwrcon, SDHCIState),
+ VMSTATE_UINT8(blkgap, SDHCIState),
+ VMSTATE_UINT8(wakcon, SDHCIState),
+ VMSTATE_UINT16(clkcon, SDHCIState),
+ VMSTATE_UINT8(timeoutcon, SDHCIState),
+ VMSTATE_UINT8(admaerr, SDHCIState),
+ VMSTATE_UINT16(norintsts, SDHCIState),
+ VMSTATE_UINT16(errintsts, SDHCIState),
+ VMSTATE_UINT16(norintstsen, SDHCIState),
+ VMSTATE_UINT16(errintstsen, SDHCIState),
+ VMSTATE_UINT16(norintsigen, SDHCIState),
+ VMSTATE_UINT16(errintsigen, SDHCIState),
+ VMSTATE_UINT16(acmd12errsts, SDHCIState),
+ VMSTATE_UINT16(data_count, SDHCIState),
+ VMSTATE_UINT16(slotint, SDHCIState),
+ VMSTATE_UINT64(admasysaddr, SDHCIState),
+ VMSTATE_UINT8(stopped_state, SDHCIState),
+ VMSTATE_VBUFFER_UINT32(fifo_buffer, SDHCIState, 1, NULL, 0, buf_maxsz),
+ VMSTATE_TIMER(insert_timer, SDHCIState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+/* Capabilities registers provide information on supported features of this
+ * specific host controller implementation */
+static Property sdhci_properties[] = {
+ DEFINE_PROP_HEX32("capareg", SDHCIState, capareg,
+ SDHC_CAPAB_REG_DEFAULT),
+ DEFINE_PROP_HEX32("maxcurr", SDHCIState, maxcurr, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static int sdhci_realize(SysBusDevice *busdev)
+{
+ SDHCIState *s = SDHCI(busdev);
+
+ s->buf_maxsz = sdhci_get_fifolen(s);
+ s->fifo_buffer = g_malloc0(s->buf_maxsz);
+ sysbus_init_irq(busdev, &s->irq);
+ memory_region_init_io(&s->iomem, &sdhci_mmio_ops, s, "sdhci",
+ SDHC_REGISTERS_MAP_SIZE);
+ sysbus_init_mmio(busdev, &s->iomem);
+ return 0;
+}
+
+static void sdhci_generic_reset(DeviceState *ds)
+{
+ SDHCIState *s = SDHCI(ds);
+ SDHCI_GET_CLASS(s)->reset(s);
+}
+
+static void sdhci_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *sbdc = SYS_BUS_DEVICE_CLASS(klass);
+ SDHCIClass *k = SDHCI_CLASS(klass);
+
+ dc->vmsd = &sdhci_vmstate;
+ dc->props = sdhci_properties;
+ dc->reset = sdhci_generic_reset;
+ sbdc->init = sdhci_realize;
+
+ k->reset = sdhci_reset;
+ k->mem_read = sdhci_read;
+ k->mem_write = sdhci_write;
+ k->send_command = sdhci_send_command;
+ k->can_issue_command = sdhci_can_issue_command;
+ k->start_data_transfer = sdhci_start_transfer;
+ k->end_data_transfer = sdhci_end_transfer;
+ k->do_sdma_single = sdhci_sdma_transfer_single_block;
+ k->do_sdma_multi = sdhci_sdma_transfer_multi_blocks;
+ k->do_adma = sdhci_start_adma;
+ k->read_block_from_card = sdhci_read_block_from_card;
+ k->write_block_to_card = sdhci_write_block_to_card;
+ k->bdata_read = sdhci_read_dataport;
+ k->bdata_write = sdhci_write_dataport;
+}
+
+static const TypeInfo sdhci_type_info = {
+ .name = TYPE_SDHCI,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(SDHCIState),
+ .instance_init = sdhci_initfn,
+ .instance_finalize = sdhci_uninitfn,
+ .class_init = sdhci_class_init,
+ .class_size = sizeof(SDHCIClass)
+};
+
+static void sdhci_register_types(void)
+{
+ type_register_static(&sdhci_type_info);
+}
+
+type_init(sdhci_register_types)
diff --git a/hw/sdhci.h b/hw/sdhci.h
new file mode 100644
index 0000000..768856c
--- /dev/null
+++ b/hw/sdhci.h
@@ -0,0 +1,310 @@
+/*
+ * SD Association Host Standard Specification v2.0 controller emulation
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Mitsyanko Igor <i.mitsyanko@samsung.com>
+ * Peter A.G. Crosthwaite <peter.crosthwaite@petalogix.com>
+ *
+ * Based on MMC controller for Samsung S5PC1xx-based board emulation
+ * by Alexey Merkulov and Vladimir Monakhov.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SDHCI_H
+#define SDHCI_H
+
+#include "qemu-common.h"
+#include "sysbus.h"
+#include "sd.h"
+
+/* R/W SDMA System Address register 0x0 */
+#define SDHC_SYSAD 0x00
+
+/* R/W Host DMA Buffer Boundary and Transfer Block Size Register 0x0 */
+#define SDHC_BLKSIZE 0x04
+
+/* R/W Blocks count for current transfer 0x0 */
+#define SDHC_BLKCNT 0x06
+
+/* R/W Command Argument Register 0x0 */
+#define SDHC_ARGUMENT 0x08
+
+/* R/W Transfer Mode Setting Register 0x0 */
+#define SDHC_TRNMOD 0x0C
+#define SDHC_TRNS_DMA 0x0001
+#define SDHC_TRNS_BLK_CNT_EN 0x0002
+#define SDHC_TRNS_ACMD12 0x0004
+#define SDHC_TRNS_READ 0x0010
+#define SDHC_TRNS_MULTI 0x0020
+
+/* R/W Command Register 0x0 */
+#define SDHC_CMDREG 0x0E
+#define SDHC_CMD_RSP_WITH_BUSY (3 << 0)
+#define SDHC_CMD_DATA_PRESENT (1 << 5)
+#define SDHC_CMD_SUSPEND (1 << 6)
+#define SDHC_CMD_RESUME (1 << 7)
+#define SDHC_CMD_ABORT ((1 << 6)|(1 << 7))
+#define SDHC_CMD_TYPE_MASK ((1 << 6)|(1 << 7))
+#define SDHC_COMMAND_TYPE(x) ((x) & SDHC_CMD_TYPE_MASK)
+
+/* ROC Response Register 0 0x0 */
+#define SDHC_RSPREG0 0x10
+/* ROC Response Register 1 0x0 */
+#define SDHC_RSPREG1 0x14
+/* ROC Response Register 2 0x0 */
+#define SDHC_RSPREG2 0x18
+/* ROC Response Register 3 0x0 */
+#define SDHC_RSPREG3 0x1C
+
+/* R/W Buffer Data Register 0x0 */
+#define SDHC_BDATA 0x20
+
+/* R/ROC Present State Register 0x000A0000 */
+#define SDHC_PRNSTS 0x24
+#define SDHC_CMD_INHIBIT 0x00000001
+#define SDHC_DATA_INHIBIT 0x00000002
+#define SDHC_DAT_LINE_ACTIVE 0x00000004
+#define SDHC_DOING_WRITE 0x00000100
+#define SDHC_DOING_READ 0x00000200
+#define SDHC_SPACE_AVAILABLE 0x00000400
+#define SDHC_DATA_AVAILABLE 0x00000800
+#define SDHC_CARD_PRESENT 0x00010000
+#define SDHC_CARD_DETECT 0x00040000
+#define SDHC_WRITE_PROTECT 0x00080000
+#define TRANSFERRING_DATA(x) \
+ ((x) & (SDHC_DOING_READ | SDHC_DOING_WRITE))
+
+/* R/W Host control Register 0x0 */
+#define SDHC_HOSTCTL 0x28
+#define SDHC_CTRL_DMA_CHECK_MASK 0x18
+#define SDHC_CTRL_SDMA 0x00
+#define SDHC_CTRL_ADMA1_32 0x08
+#define SDHC_CTRL_ADMA2_32 0x10
+#define SDHC_CTRL_ADMA2_64 0x18
+#define SDHC_DMA_TYPE(x) ((x) & SDHC_CTRL_DMA_CHECK_MASK)
+
+/* R/W Power Control Register 0x0 */
+#define SDHC_PWRCON 0x29
+#define SDHC_POWER_ON (1 << 0)
+
+/* R/W Block Gap Control Register 0x0 */
+#define SDHC_BLKGAP 0x2A
+#define SDHC_STOP_AT_GAP_REQ 0x01
+#define SDHC_CONTINUE_REQ 0x02
+
+/* R/W WakeUp Control Register 0x0 */
+#define SDHC_WAKCON 0x2B
+#define SDHC_WKUP_ON_INS (1 << 1)
+#define SDHC_WKUP_ON_RMV (1 << 2)
+
+/* CLKCON */
+#define SDHC_CLKCON 0x2C
+#define SDHC_CLOCK_INT_STABLE 0x0002
+#define SDHC_CLOCK_INT_EN 0x0001
+#define SDHC_CLOCK_SDCLK_EN (1 << 2)
+#define SDHC_CLOCK_CHK_MASK 0x0007
+#define SDHC_CLOCK_IS_ON(x) \
+ (((x) & SDHC_CLOCK_CHK_MASK) == SDHC_CLOCK_CHK_MASK)
+
+/* R/W Timeout Control Register 0x0 */
+#define SDHC_TIMEOUTCON 0x2E
+
+/* R/W Software Reset Register 0x0 */
+#define SDHC_SWRST 0x2F
+#define SDHC_RESET_ALL 0x01
+#define SDHC_RESET_CMD 0x02
+#define SDHC_RESET_DATA 0x04
+
+/* ROC/RW1C Normal Interrupt Status Register 0x0 */
+#define SDHC_NORINTSTS 0x30
+#define SDHC_NIS_ERR 0x8000
+#define SDHC_NIS_CMDCMP 0x0001
+#define SDHC_NIS_TRSCMP 0x0002
+#define SDHC_NIS_BLKGAP 0x0004
+#define SDHC_NIS_DMA 0x0008
+#define SDHC_NIS_WBUFRDY 0x0010
+#define SDHC_NIS_RBUFRDY 0x0020
+#define SDHC_NIS_INSERT 0x0040
+#define SDHC_NIS_REMOVE 0x0080
+#define SDHC_NIS_CARDINT 0x0100
+
+/* ROC/RW1C Error Interrupt Status Register 0x0 */
+#define SDHC_ERRINTSTS 0x32
+#define SDHC_EIS_CMDTIMEOUT 0x0001
+#define SDHC_EIS_BLKGAP 0x0004
+#define SDHC_EIS_CMDIDX 0x0008
+#define SDHC_EIS_CMD12ERR 0x0100
+#define SDHC_EIS_ADMAERR 0x0200
+
+/* R/W Normal Interrupt Status Enable Register 0x0 */
+#define SDHC_NORINTSTSEN 0x34
+#define SDHC_NISEN_CMDCMP 0x0001
+#define SDHC_NISEN_TRSCMP 0x0002
+#define SDHC_NISEN_DMA 0x0008
+#define SDHC_NISEN_WBUFRDY 0x0010
+#define SDHC_NISEN_RBUFRDY 0x0020
+#define SDHC_NISEN_INSERT 0x0040
+#define SDHC_NISEN_REMOVE 0x0080
+#define SDHC_NISEN_CARDINT 0x0100
+
+/* R/W Error Interrupt Status Enable Register 0x0 */
+#define SDHC_ERRINTSTSEN 0x36
+#define SDHC_EISEN_CMDTIMEOUT 0x0001
+#define SDHC_EISEN_BLKGAP 0x0004
+#define SDHC_EISEN_CMDIDX 0x0008
+#define SDHC_EISEN_ADMAERR 0x0200
+
+/* R/W Normal Interrupt Signal Enable Register 0x0 */
+#define SDHC_NORINTSIGEN 0x38
+#define SDHC_NORINTSIG_INSERT (1 << 6)
+#define SDHC_NORINTSIG_REMOVE (1 << 7)
+
+/* R/W Error Interrupt Signal Enable Register 0x0 */
+#define SDHC_ERRINTSIGEN 0x3A
+
+/* ROC Auto CMD12 error status register 0x0 */
+#define SDHC_ACMD12ERRSTS 0x3C
+
+/* HWInit Capabilities Register 0x05E80080 */
+#define SDHC_CAPAREG 0x40
+#define SDHC_CAN_DO_DMA 0x00400000
+#define SDHC_CAN_DO_ADMA2 0x00080000
+#define SDHC_CAN_DO_ADMA1 0x00100000
+#define SDHC_64_BIT_BUS_SUPPORT (1 << 28)
+#define SDHC_CAPAB_BLOCKSIZE(x) (((x) >> 16) & 0x3)
+
+/* HWInit Maximum Current Capabilities Register 0x0 */
+#define SDHC_MAXCURR 0x48
+
+/* W Force Event Auto CMD12 Error Interrupt Register 0x0000 */
+#define SDHC_FEAER 0x50
+/* W Force Event Error Interrupt Register Error Interrupt 0x0000 */
+#define SDHC_FEERR 0x52
+
+/* R/W ADMA Error Status Register 0x00 */
+#define SDHC_ADMAERR 0x54
+#define SDHC_ADMAERR_LENGTH_MISMATCH (1 << 2)
+#define SDHC_ADMAERR_STATE_ST_STOP (0 << 0)
+#define SDHC_ADMAERR_STATE_ST_FDS (1 << 0)
+#define SDHC_ADMAERR_STATE_ST_TFR (3 << 0)
+#define SDHC_ADMAERR_STATE_MASK (3 << 0)
+
+/* R/W ADMA System Address Register 0x00 */
+#define SDHC_ADMASYSADDR 0x58
+#define SDHC_ADMA_ATTR_SET_LEN (1 << 4)
+#define SDHC_ADMA_ATTR_ACT_TRAN (1 << 5)
+#define SDHC_ADMA_ATTR_ACT_LINK (3 << 4)
+#define SDHC_ADMA_ATTR_INT (1 << 2)
+#define SDHC_ADMA_ATTR_END (1 << 1)
+#define SDHC_ADMA_ATTR_VALID (1 << 0)
+#define SDHC_ADMA_ATTR_ACT_MASK ((1 << 4)|(1 << 5))
+
+/* Slot interrupt status */
+#define SDHC_SLOT_INT_STATUS 0xFC
+
+/* HWInit Host Controller Version Register 0x0401 */
+#define SDHC_HCVER 0xFE
+#define SD_HOST_SPECv2_VERS 0x2401
+
+#define SDHC_REGISTERS_MAP_SIZE 0x100
+#define SDHC_INSERTION_DELAY (get_ticks_per_sec())
+#define SDHC_CMD_RESPONSE (3 << 0)
+
+enum {
+ sdhc_not_stopped = 0, /* normal SDHC state */
+ sdhc_gap_read = 1, /* SDHC stopped at block gap during read operation */
+ sdhc_gap_write = 2 /* SDHC stopped at block gap during write operation */
+};
+
+/* SD/MMC host controller state */
+typedef struct SDHCIState {
+ SysBusDevice busdev;
+ SDState *card;
+ MemoryRegion iomem;
+
+ QEMUTimer *insert_timer; /* timer for 'changing' sd card. */
+ qemu_irq eject_cb;
+ qemu_irq ro_cb;
+ qemu_irq irq;
+
+ uint32_t sdmasysad; /* SDMA System Address register */
+ uint16_t blksize; /* Host DMA Buff Boundary and Transfer BlkSize Reg */
+ uint16_t blkcnt; /* Blocks count for current transfer */
+ uint32_t argument; /* Command Argument Register */
+ uint16_t trnmod; /* Transfer Mode Setting Register */
+ uint16_t cmdreg; /* Command Register */
+ uint32_t rspreg[4]; /* Response Registers 0-3 */
+ uint32_t prnsts; /* Present State Register */
+ uint8_t hostctl; /* Host Control Register */
+ uint8_t pwrcon; /* Power control Register */
+ uint8_t blkgap; /* Block Gap Control Register */
+ uint8_t wakcon; /* WakeUp Control Register */
+ uint16_t clkcon; /* Clock control Register */
+ uint8_t timeoutcon; /* Timeout Control Register */
+ uint8_t admaerr; /* ADMA Error Status Register */
+ uint16_t norintsts; /* Normal Interrupt Status Register */
+ uint16_t errintsts; /* Error Interrupt Status Register */
+ uint16_t norintstsen; /* Normal Interrupt Status Enable Register */
+ uint16_t errintstsen; /* Error Interrupt Status Enable Register */
+ uint16_t norintsigen; /* Normal Interrupt Signal Enable Register */
+ uint16_t errintsigen; /* Error Interrupt Signal Enable Register */
+ uint16_t acmd12errsts; /* Auto CMD12 error status register */
+ uint16_t slotint; /* Slot interrupt status register */
+ uint64_t admasysaddr; /* ADMA System Address Register */
+
+ uint32_t capareg; /* Capabilities Register */
+ uint32_t maxcurr; /* Maximum Current Capabilities Register */
+ uint8_t *fifo_buffer; /* SD host i/o FIFO buffer */
+ uint32_t buf_maxsz;
+ uint16_t data_count; /* current element in FIFO buffer */
+ uint8_t stopped_state;/* Current SDHC state */
+ /* Buffer Data Port Register - virtual access point to R and W buffers */
+ /* Software Reset Register - always reads as 0 */
+ /* Force Event Auto CMD12 Error Interrupt Reg - write only */
+ /* Force Event Error Interrupt Register- write only */
+ /* RO Host Controller Version Register always reads as 0x2401 */
+} SDHCIState;
+
+typedef struct SDHCIClass {
+ SysBusDeviceClass busdev_class;
+
+ void (*reset)(SDHCIState *s);
+ uint32_t (*mem_read)(SDHCIState *s, unsigned int offset, unsigned size);
+ void (*mem_write)(SDHCIState *s, unsigned int offset, uint32_t value,
+ unsigned size);
+ void (*send_command)(SDHCIState *s);
+ bool (*can_issue_command)(SDHCIState *s);
+ void (*start_data_transfer)(SDHCIState *s);
+ void (*end_data_transfer)(SDHCIState *s);
+ void (*do_sdma_single)(SDHCIState *s);
+ void (*do_sdma_multi)(SDHCIState *s);
+ void (*do_adma)(SDHCIState *s);
+ void (*read_block_from_card)(SDHCIState *s);
+ void (*write_block_to_card)(SDHCIState *s);
+ uint32_t (*bdata_read)(SDHCIState *s, unsigned size);
+ void (*bdata_write)(SDHCIState *s, uint32_t value, unsigned size);
+} SDHCIClass;
+
+extern const VMStateDescription sdhci_vmstate;
+
+#define TYPE_SDHCI "sdhci"
+#define SDHCI(obj) \
+ OBJECT_CHECK(SDHCIState, (obj), TYPE_SDHCI)
+#define SDHCI_CLASS(klass) \
+ OBJECT_CLASS_CHECK(SDHCIClass, (klass), TYPE_SDHCI)
+#define SDHCI_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(SDHCIClass, (obj), TYPE_SDHCI)
+
+#endif /* SDHCI_H */
--
1.7.3.2
^ permalink raw reply related [flat|nested] 13+ messages in thread* [Qemu-devel] [PATCH v5 2/4] exynos4210: Added SD host controller model
2012-07-05 4:03 [Qemu-devel] [PATCH v5 0/4] Standard SD host controller model Peter A. G. Crosthwaite
2012-07-05 4:03 ` [Qemu-devel] [PATCH v5 1/4] hw: introduce standard SD host controller Peter A. G. Crosthwaite
@ 2012-07-05 4:04 ` Peter A. G. Crosthwaite
2012-07-16 17:13 ` Peter Maydell
2012-07-05 4:04 ` [Qemu-devel] [PATCH v5 3/4] vl.c: allow for repeated -sd arguments Peter A. G. Crosthwaite
2012-07-05 4:04 ` [Qemu-devel] [PATCH v5 4/4] xilinx_zynq: Added SD controllers Peter A. G. Crosthwaite
3 siblings, 1 reply; 13+ messages in thread
From: Peter A. G. Crosthwaite @ 2012-07-05 4:04 UTC (permalink / raw)
To: qemu-devel, i.mitsyanko
Cc: peter.maydell, e.voevodin, peter.crosthwaite, kyungmin.park,
d.solodkiy, edgar.iglesias, m.kozlov, john.williams
From: Igor Mitsyanko <i.mitsyanko@samsung.com>
Custom Exynos4210 SD/MMC host controller, based on SD association standard host
controller ver. 2.00.
Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
---
changed from v4 (Igor):
set irq on SLOTINT status instead of interrupt registers status; instead;
conditional in exynos4210_sdhci_can_issue_command() made more readable and documented;
add a comment to exynos4210_sdhci_writefn()'s SDHC_CLKCON case statement;
do not override superclass property in exynos4210.sdhci class, set properties to required value in realize function
changed from v3:
rebased for new Makefile system
fixed commit msg typo (Andreas review)
hw/arm/Makefile.objs | 1 +
hw/exynos4210.c | 20 +++
hw/exynos4210_sdhci.c | 443 +++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 464 insertions(+), 0 deletions(-)
create mode 100644 hw/exynos4210_sdhci.c
diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index 88ff47d..c3afb6e 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -11,6 +11,7 @@ obj-y += realview_gic.o realview.o arm_sysctl.o arm11mpcore.o a9mpcore.o
obj-y += exynos4210_gic.o exynos4210_combiner.o exynos4210.o
obj-y += exynos4_boards.o exynos4210_uart.o exynos4210_pwm.o
obj-y += exynos4210_pmu.o exynos4210_mct.o exynos4210_fimd.o
+obj-y += exynos4210_sdhci.o
obj-y += arm_l2x0.o
obj-y += arm_mptimer.o a15mpcore.o
obj-y += armv7m.o armv7m_nvic.o stellaris.o pl022.o stellaris_enet.o
diff --git a/hw/exynos4210.c b/hw/exynos4210.c
index 9c20b3f..1a2e3d9 100644
--- a/hw/exynos4210.c
+++ b/hw/exynos4210.c
@@ -56,6 +56,12 @@
#define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000
#define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000
+/* SD/MMC host controllers SFR base addresses */
+#define EXYNOS4210_SDHC0_BASE_ADDR 0x12510000
+#define EXYNOS4210_SDHC1_BASE_ADDR 0x12520000
+#define EXYNOS4210_SDHC2_BASE_ADDR 0x12530000
+#define EXYNOS4210_SDHC3_BASE_ADDR 0x12540000
+
/* PMU SFR base address */
#define EXYNOS4210_PMU_BASE_ADDR 0x10020000
@@ -292,6 +298,20 @@ Exynos4210State *exynos4210_init(MemoryRegion *system_mem,
EXYNOS4210_UART3_FIFO_SIZE, 3, NULL,
s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 3)]);
+ /*** SD/MMC host controllers ***/
+
+ sysbus_create_simple("exynos4210.sdhci", EXYNOS4210_SDHC0_BASE_ADDR,
+ s->irq_table[exynos4210_get_irq(29, 0)]);
+
+ sysbus_create_simple("exynos4210.sdhci", EXYNOS4210_SDHC1_BASE_ADDR,
+ s->irq_table[exynos4210_get_irq(29, 1)]);
+
+ sysbus_create_simple("exynos4210.sdhci", EXYNOS4210_SDHC2_BASE_ADDR,
+ s->irq_table[exynos4210_get_irq(29, 2)]);
+
+ sysbus_create_simple("exynos4210.sdhci", EXYNOS4210_SDHC3_BASE_ADDR,
+ s->irq_table[exynos4210_get_irq(29, 3)]);
+
/*** Display controller (FIMD) ***/
sysbus_create_varargs("exynos4210.fimd", EXYNOS4210_FIMD0_BASE_ADDR,
s->irq_table[exynos4210_get_irq(11, 0)],
diff --git a/hw/exynos4210_sdhci.c b/hw/exynos4210_sdhci.c
new file mode 100644
index 0000000..4e87c0c
--- /dev/null
+++ b/hw/exynos4210_sdhci.c
@@ -0,0 +1,443 @@
+/*
+ * Samsung Exynos4210 SD/MMC host controller model
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Mitsyanko Igor <i.mitsyanko@samsung.com>
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "sdhci.h"
+
+#define EXYNOS4_SDHC_CAPABILITIES 0x05E80080
+#define EXYNOS4_SDHC_MAX_BUFSZ 512
+
+#define EXYNOS4_SDHC_DEBUG 0
+
+#if EXYNOS4_SDHC_DEBUG == 0
+ #define DPRINT_L1(fmt, args...) do { } while (0)
+ #define DPRINT_L2(fmt, args...) do { } while (0)
+ #define ERRPRINT(fmt, args...) do { } while (0)
+#elif EXYNOS4_SDHC_DEBUG == 1
+ #define DPRINT_L1(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC: "fmt, ## args); } while (0)
+ #define DPRINT_L2(fmt, args...) do { } while (0)
+ #define ERRPRINT(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC ERROR: "fmt, ## args); } while (0)
+#else
+ #define DPRINT_L1(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC: "fmt, ## args); } while (0)
+ #define DPRINT_L2(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC: "fmt, ## args); } while (0)
+ #define ERRPRINT(fmt, args...) \
+ do {fprintf(stderr, "QEMU SDHC ERROR: "fmt, ## args); } while (0)
+#endif
+
+
+#define TYPE_EXYNOS4_SDHC "exynos4210.sdhci"
+#define EXYNOS4_SDHCI(obj) \
+ OBJECT_CHECK(Exynos4SDHCIState, (obj), TYPE_EXYNOS4_SDHC)
+
+/* ADMA Error Status Register */
+#define EXYNOS4_SDHC_FINAL_BLOCK (1 << 10)
+#define EXYNOS4_SDHC_CONTINUE_REQ (1 << 9)
+#define EXYNOS4_SDHC_IRQ_STAT (1 << 8)
+/* Control register 2 */
+#define EXYNOS4_SDHC_CONTROL2 0x80
+#define EXYNOS4_SDHC_HWINITFIN (1 << 0)
+#define EXYNOS4_SDHC_DISBUFRD (1 << 6)
+#define EXYNOS4_SDHC_SDOPSIGPC (1 << 12)
+#define EXYNOS4_SDHC_SDINPSIGPC (1 << 3)
+/* Control register 3 */
+#define EXYNOS4_SDHC_CONTROL3 0x84
+/* Control register 4 */
+#define EXYNOS4_SDHC_CONTROL4 0x8C
+/* Clock control register */
+#define EXYNOS4_SDHC_SDCLK_STBL (1 << 3)
+
+#define EXYNOS4_SDHC_CMD_USES_DAT(cmd) \
+ (((cmd) & SDHC_CMD_DATA_PRESENT) || \
+ ((cmd) & SDHC_CMD_RESPONSE) == SDHC_CMD_RSP_WITH_BUSY)
+
+typedef struct Exynos4SDHCIState {
+ SDHCIState sdhci;
+
+ uint32_t admaerr;
+ uint32_t control2;
+ uint32_t control3;
+ bool stopped_adma;
+} Exynos4SDHCIState;
+
+static void exynos4210_sdhci_reset(DeviceState *d)
+{
+ Exynos4SDHCIState *s = EXYNOS4_SDHCI(d);
+
+ SDHCI_GET_CLASS(d)->reset(SDHCI(d));
+ s->stopped_adma = false;
+ s->admaerr = 0;
+ s->control2 = 0;
+ s->control3 = 0x7F5F3F1F;
+}
+
+static void exynos4210_sdhci_start_adma(SDHCIState *sdhci)
+{
+ Exynos4SDHCIState *s = EXYNOS4_SDHCI(sdhci);
+ unsigned int length, n, begin;
+ target_phys_addr_t entry_addr;
+ uint32_t addr;
+ uint8_t attributes;
+ const uint16_t block_size = sdhci->blksize & 0x0fff;
+ s->admaerr &=
+ ~(EXYNOS4_SDHC_FINAL_BLOCK | SDHC_ADMAERR_LENGTH_MISMATCH);
+
+ while (1) {
+ addr = length = attributes = 0;
+ entry_addr = (target_phys_addr_t)(sdhci->admasysaddr & 0xFFFFFFFFull);
+
+ /* fetch next entry from descriptor table */
+ cpu_physical_memory_read(entry_addr + 4, (uint8_t *)(&addr), 4);
+ cpu_physical_memory_read(entry_addr + 2, (uint8_t *)(&length), 2);
+ cpu_physical_memory_read(entry_addr, (uint8_t *)(&attributes), 1);
+ DPRINT_L1("ADMA loop: addr=0x%08x, len=%d, attr=%x\n",
+ addr, length, attributes);
+
+ if ((attributes & SDHC_ADMA_ATTR_VALID) == 0) {
+ /* Indicate that error occurred in ST_FDS state */
+ s->admaerr &= ~SDHC_ADMAERR_STATE_MASK;
+ s->admaerr |= SDHC_ADMAERR_STATE_ST_FDS;
+ DPRINT_L1("ADMA not valid at addr=0x%lx\n", sdhci->admasysaddr);
+
+ if (sdhci->errintstsen & SDHC_EISEN_ADMAERR) {
+ sdhci->errintsts |= SDHC_EIS_ADMAERR;
+ sdhci->norintsts |= SDHC_NIS_ERR;
+ }
+
+ if (sdhci->errintsigen & sdhci->errintsts) {
+ sdhci->slotint = 1;
+ }
+
+ qemu_set_irq(sdhci->irq, sdhci->slotint);
+ break;
+ }
+
+ if (length == 0) {
+ length = 65536;
+ }
+
+ addr &= 0xfffffffc; /* minimum unit of addr is 4 byte */
+
+ switch (attributes & SDHC_ADMA_ATTR_ACT_MASK) {
+ case SDHC_ADMA_ATTR_ACT_TRAN: /* data transfer */
+ if (sdhci->trnmod & SDHC_TRNS_READ) {
+ while (length) {
+ if (sdhci->data_count == 0) {
+ for (n = 0; n < block_size; n++) {
+ sdhci->fifo_buffer[n] = sd_read_data(sdhci->card);
+ }
+ }
+ begin = sdhci->data_count;
+ if ((length + begin) < block_size) {
+ sdhci->data_count = length + begin;
+ length = 0;
+ } else {
+ sdhci->data_count = block_size;
+ length -= block_size - begin;
+ }
+ cpu_physical_memory_write(addr, &sdhci->fifo_buffer[begin],
+ sdhci->data_count - begin);
+ addr += sdhci->data_count - begin;
+ if (sdhci->data_count == block_size) {
+ sdhci->data_count = 0;
+ if (sdhci->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ sdhci->blkcnt--;
+ if (sdhci->blkcnt == 0) {
+ break;
+ }
+ }
+ }
+ }
+ } else {
+ while (length) {
+ begin = sdhci->data_count;
+ if ((length + begin) < block_size) {
+ sdhci->data_count = length + begin;
+ length = 0;
+ } else {
+ sdhci->data_count = block_size;
+ length -= block_size - begin;
+ }
+ cpu_physical_memory_read(addr,
+ &sdhci->fifo_buffer[begin], sdhci->data_count);
+ addr += sdhci->data_count - begin;
+ if (sdhci->data_count == block_size) {
+ for (n = 0; n < block_size; n++) {
+ sd_write_data(sdhci->card, sdhci->fifo_buffer[n]);
+ }
+ sdhci->data_count = 0;
+ if (sdhci->trnmod & SDHC_TRNS_BLK_CNT_EN) {
+ sdhci->blkcnt--;
+ if (sdhci->blkcnt == 0) {
+ break;
+ }
+ }
+ }
+ }
+ }
+ sdhci->admasysaddr += 8;
+ break;
+ case SDHC_ADMA_ATTR_ACT_LINK: /* link to next descriptor table */
+ sdhci->admasysaddr = addr;
+ DPRINT_L1("ADMA link: admasysaddr=0x%lx\n", sdhci->admasysaddr);
+ break;
+ default:
+ sdhci->admasysaddr += 8;
+ break;
+ }
+
+ /* ADMA transfer terminates if blkcnt == 0 or by END attribute */
+ if (((sdhci->trnmod & SDHC_TRNS_BLK_CNT_EN) && (sdhci->blkcnt == 0)) ||
+ (attributes & SDHC_ADMA_ATTR_END)) {
+ DPRINT_L2("ADMA transfer completed\n");
+ if (length || ((attributes & SDHC_ADMA_ATTR_END) &&
+ (sdhci->trnmod & SDHC_TRNS_BLK_CNT_EN) && sdhci->blkcnt != 0) ||
+ ((sdhci->trnmod & SDHC_TRNS_BLK_CNT_EN) && sdhci->blkcnt == 0 &&
+ (attributes & SDHC_ADMA_ATTR_END) == 0)) {
+ ERRPRINT("ADMA length mismatch\n");
+ s->admaerr |= SDHC_ADMAERR_LENGTH_MISMATCH |
+ SDHC_ADMAERR_STATE_ST_TFR;
+ if (sdhci->errintstsen & SDHC_EISEN_ADMAERR) {
+ sdhci->errintsts |= SDHC_EIS_ADMAERR;
+ sdhci->norintsts |= SDHC_NIS_ERR;
+ }
+
+ if (sdhci->errintsigen & sdhci->errintsts) {
+ sdhci->slotint = 1;
+ }
+
+ qemu_set_irq(sdhci->irq, sdhci->slotint);
+ }
+
+ s->admaerr |= EXYNOS4_SDHC_FINAL_BLOCK;
+ SDHCI_GET_CLASS(sdhci)->end_data_transfer(sdhci);
+ break;
+ }
+
+ if (attributes & SDHC_ADMA_ATTR_INT) {
+ DPRINT_L1("ADMA interrupt: addr=0x%lx\n", sdhci->admasysaddr);
+ s->admaerr |= EXYNOS4_SDHC_IRQ_STAT;
+ s->stopped_adma = true;
+ if (sdhci->norintstsen & SDHC_NISEN_DMA) {
+ sdhci->norintsts |= SDHC_NIS_DMA;
+ }
+ if (sdhci->norintsts & sdhci->norintsigen) {
+ sdhci->slotint = 1;
+ }
+ qemu_set_irq(sdhci->irq, sdhci->slotint);
+ break;
+ }
+ }
+}
+
+static bool exynos4210_sdhci_can_issue_command(SDHCIState *sdhci)
+{
+ Exynos4SDHCIState *s = EXYNOS4_SDHCI(sdhci);
+
+ /* Check that power is supplied and clock is enabled.
+ * If SDOPSIGPC and SDINPSIGPC bits in CONTROL2 register are not set, power
+ * is supplied regardless of the PWRCON register state */
+ if (!SDHC_CLOCK_IS_ON(sdhci->clkcon) || (!(sdhci->pwrcon & SDHC_POWER_ON) &&
+ (s->control2 & (EXYNOS4_SDHC_SDOPSIGPC | EXYNOS4_SDHC_SDINPSIGPC)))) {
+ return false;
+ }
+
+ /* Controller cannot issue a command which uses data line (unless its an
+ * ABORT command) if data line is currently busy */
+ if (((sdhci->prnsts & SDHC_DATA_INHIBIT) || sdhci->stopped_state) &&
+ (EXYNOS4_SDHC_CMD_USES_DAT(sdhci->cmdreg) &&
+ SDHC_COMMAND_TYPE(sdhci->cmdreg) != SDHC_CMD_ABORT)) {
+ return false;
+ }
+
+ return true;
+}
+
+static uint64_t
+exynos4210_sdhci_readfn(void *opaque, target_phys_addr_t offset, unsigned size)
+{
+ Exynos4SDHCIState *s = (Exynos4SDHCIState *)opaque;
+ uint32_t ret;
+
+ switch (offset & ~0x3) {
+ case SDHC_BDATA:
+ /* Buffer data port read can be disabled by CONTROL2 register */
+ if (s->control2 & EXYNOS4_SDHC_DISBUFRD) {
+ ret = 0;
+ } else {
+ ret = SDHCI_GET_CLASS(s)->mem_read(SDHCI(s), offset, size);
+ }
+ break;
+ case SDHC_ADMAERR:
+ ret = (s->admaerr >> 8 * (offset - SDHC_ADMAERR)) &
+ ((1 << 8 * size) - 1);
+ break;
+ case EXYNOS4_SDHC_CONTROL2:
+ ret = (s->control2 >> 8 * (offset - EXYNOS4_SDHC_CONTROL2)) &
+ ((1 << 8 * size) - 1);
+ break;
+ case EXYNOS4_SDHC_CONTROL3:
+ ret = (s->control3 >> 8 * (offset - EXYNOS4_SDHC_CONTROL3)) &
+ ((1 << 8 * size) - 1);
+ break;
+ case EXYNOS4_SDHC_CONTROL4:
+ ret = 0;
+ break;
+ default:
+ ret = SDHCI_GET_CLASS(s)->mem_read(SDHCI(s), offset, size);
+ break;
+ }
+
+ DPRINT_L2("read %ub: addr[0x%04x] -> %u(0x%x)\n", size, offset, ret, ret);
+ return ret;
+}
+
+static void exynos4210_sdhci_writefn(void *opaque, target_phys_addr_t offset,
+ uint64_t val, unsigned size)
+{
+ Exynos4SDHCIState *s = (Exynos4SDHCIState *)opaque;
+ SDHCIState *sdhci = SDHCI(s);
+ unsigned shift;
+
+ DPRINT_L2("write %ub: addr[0x%04x] <- %u(0x%x)\n", size, (uint32_t)offset,
+ (uint32_t)val, (uint32_t)val);
+
+ switch (offset) {
+ case SDHC_CLKCON:
+ if ((val & SDHC_CLOCK_SDCLK_EN) &&
+ (sdhci->prnsts & SDHC_CARD_PRESENT)) {
+ val |= EXYNOS4_SDHC_SDCLK_STBL;
+ } else {
+ val &= ~EXYNOS4_SDHC_SDCLK_STBL;
+ }
+ /* Break out to superclass write to handle the rest of this register */
+ break;
+ case EXYNOS4_SDHC_CONTROL2 ... EXYNOS4_SDHC_CONTROL2 + 3:
+ shift = (offset - EXYNOS4_SDHC_CONTROL2) * 8;
+ s->control2 = (s->control2 & ~(((1 << 8 * size) - 1) << shift)) |
+ (val << shift);
+ return;
+ case EXYNOS4_SDHC_CONTROL3 ... EXYNOS4_SDHC_CONTROL3 + 3:
+ shift = (offset - EXYNOS4_SDHC_CONTROL2) * 8;
+ s->control3 = (s->control3 & ~(((1 << 8 * size) - 1) << shift)) |
+ (val << shift);
+ return;
+ case SDHC_ADMAERR ... SDHC_ADMAERR + 3:
+ if (size == 4 || (size == 2 && offset == SDHC_ADMAERR) ||
+ (size == 1 && offset == (SDHC_ADMAERR + 1))) {
+ uint32_t mask = 0;
+
+ if (size == 2) {
+ mask = 0xFFFF0000;
+ } else if (size == 1) {
+ mask = 0xFFFF00FF;
+ val <<= 8;
+ }
+
+ s->admaerr = (s->admaerr & (mask | EXYNOS4_SDHC_FINAL_BLOCK |
+ EXYNOS4_SDHC_IRQ_STAT)) | (val & ~(EXYNOS4_SDHC_FINAL_BLOCK |
+ EXYNOS4_SDHC_IRQ_STAT | EXYNOS4_SDHC_CONTINUE_REQ));
+ s->admaerr &= ~(val & EXYNOS4_SDHC_IRQ_STAT);
+ if ((s->stopped_adma) && (val & EXYNOS4_SDHC_CONTINUE_REQ) &&
+ (SDHC_DMA_TYPE(sdhci->hostctl) == SDHC_CTRL_ADMA2_32)) {
+ s->stopped_adma = false;
+ SDHCI_GET_CLASS(sdhci)->do_adma(sdhci);
+ }
+ } else {
+ uint32_t mask = (1 << (size * 8)) - 1;
+ shift = 8 * (offset & 0x3);
+ val <<= shift;
+ mask = ~(mask << shift);
+ s->admaerr = (s->admaerr & mask) | val;
+ }
+ return;
+ }
+
+ SDHCI_GET_CLASS(s)->mem_write(sdhci, offset, val, size);
+}
+
+static const MemoryRegionOps exynos4210_sdhci_mmio_ops = {
+ .read = exynos4210_sdhci_readfn,
+ .write = exynos4210_sdhci_writefn,
+ .valid = {
+ .min_access_size = 1,
+ .max_access_size = 4,
+ .unaligned = false
+ },
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+static const VMStateDescription exynos4210_sdhci_vmstate = {
+ .name = "exynos4210.sdhci",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_STRUCT(sdhci, Exynos4SDHCIState, 1, sdhci_vmstate, SDHCIState),
+ VMSTATE_UINT32(admaerr, Exynos4SDHCIState),
+ VMSTATE_UINT32(control2, Exynos4SDHCIState),
+ VMSTATE_UINT32(control3, Exynos4SDHCIState),
+ VMSTATE_BOOL(stopped_adma, Exynos4SDHCIState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static int exynos4210_sdhci_realize(SysBusDevice *busdev)
+{
+ SDHCIState *sdhci = SDHCI(busdev);
+
+ qdev_prop_set_uint32(DEVICE(busdev), "capareg", EXYNOS4_SDHC_CAPABILITIES);
+ sdhci->buf_maxsz = EXYNOS4_SDHC_MAX_BUFSZ;
+ sdhci->fifo_buffer = g_malloc0(sdhci->buf_maxsz);
+ sysbus_init_irq(busdev, &sdhci->irq);
+ memory_region_init_io(&sdhci->iomem, &exynos4210_sdhci_mmio_ops,
+ EXYNOS4_SDHCI(sdhci), "exynos4210.sdhci", SDHC_REGISTERS_MAP_SIZE);
+ sysbus_init_mmio(busdev, &sdhci->iomem);
+ return 0;
+}
+
+static void exynos4210_sdhci_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *sbdc = SYS_BUS_DEVICE_CLASS(klass);
+ SDHCIClass *k = SDHCI_CLASS(klass);
+
+ dc->vmsd = &exynos4210_sdhci_vmstate;
+ dc->reset = exynos4210_sdhci_reset;
+ sbdc->init = exynos4210_sdhci_realize;
+
+ k->can_issue_command = exynos4210_sdhci_can_issue_command;
+ k->do_adma = exynos4210_sdhci_start_adma;
+}
+
+static const TypeInfo exynos4210_sdhci_type_info = {
+ .name = TYPE_EXYNOS4_SDHC,
+ .parent = TYPE_SDHCI,
+ .instance_size = sizeof(Exynos4SDHCIState),
+ .class_init = exynos4210_sdhci_class_init,
+};
+
+static void exynos4210_sdhci_register_types(void)
+{
+ type_register_static(&exynos4210_sdhci_type_info);
+}
+
+type_init(exynos4210_sdhci_register_types)
--
1.7.3.2
^ permalink raw reply related [flat|nested] 13+ messages in thread