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mmc: switch mmc_helper to device_ api

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Add generic mmc_helper which uses newly introduced device_*_property
api. Thanks to this change the sd/mmc drivers will be capable
of parsing both DT and ACPI description.

Ensure backward compatibility for all mmc_fdt_helper users.

Reviewed by: manu, mw
Sponsored by: Semihalf
Differential revision: https://reviews.freebsd.org/D31598
This commit is contained in:
Bartlomiej Grzesik 2021-08-02 16:27:23 +02:00 committed by Marcin Wojtas
parent 3f9a00e3b5
commit 8a8166e5bc
10 changed files with 234 additions and 139 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
sys/arm/allwinner/aw_mmc.c
View file

@ -130,7 +130,7 @@ struct aw_mmc_softc {
int aw_timeout;
struct callout aw_timeoutc;
struct mmc_host aw_host;
struct mmc_fdt_helper mmc_helper;
struct mmc_helper mmc_helper;
#ifdef MMCCAM
union ccb * ccb;
struct mmc_sim mmc_sim;

2
sys/arm/broadcom/bcm2835/bcm2835_sdhci.c
View file

@ -156,7 +156,7 @@ struct bcm_sdhci_softc {
void * sc_intrhand;
struct mmc_request * sc_req;
struct sdhci_slot sc_slot;
struct mmc_fdt_helper sc_mmc_helper;
struct mmc_helper sc_mmc_helper;
int sc_dma_ch;
bus_dma_tag_t sc_dma_tag;
bus_dmamap_t sc_dma_map;

1
sys/conf/files
View file

@ -2483,6 +2483,7 @@ dev/mmc/mmcbr_if.m standard
dev/mmc/mmcbus_if.m standard
dev/mmc/mmcsd.c optional mmcsd !mmccam
dev/mmc/mmc_fdt_helpers.c optional ext_resources mmc fdt | ext_resources mmccam fdt
dev/mmc/mmc_helpers.c optional ext_resources mmc | ext_resources mmccam
dev/mmc/mmc_pwrseq.c optional ext_resources mmc fdt | ext_resources mmccam fdt
dev/mmc/mmc_pwrseq_if.m optional ext_resources mmc fdt | ext_resources mmccam fdt
dev/mmcnull/mmcnull.c optional mmcnull

2
sys/dev/mmc/host/dwmmc_var.h
View file

@ -56,7 +56,7 @@ struct dwmmc_softc {
device_t dev;
void *intr_cookie;
struct mmc_host host;
struct mmc_fdt_helper mmc_helper;
struct mmc_helper mmc_helper;
struct mtx sc_mtx;
#ifdef MMCCAM
union ccb * ccb;

116
sys/dev/mmc/mmc_fdt_helpers.c
View file

@ -45,105 +45,21 @@ __FBSDID("$FreeBSD$");
#include <dev/extres/regulator/regulator.h>
#endif
#include <dev/mmc/mmc_helpers.h>
#include "mmc_pwrseq_if.h"
static inline void
mmc_fdt_parse_sd_speed(phandle_t node, struct mmc_host *host)
{
bool no_18v = false;
/*
* Parse SD supported modes
* All UHS-I modes requires 1.8V signaling.
*/
if (OF_hasprop(node, "no-1-8-v"))
no_18v = true;
if (OF_hasprop(node, "cap-sd-highspeed"))
host->caps |= MMC_CAP_HSPEED;
if (OF_hasprop(node, "sd-uhs-sdr12") && no_18v == false)
host->caps |= MMC_CAP_UHS_SDR12 | MMC_CAP_SIGNALING_180;
if (OF_hasprop(node, "sd-uhs-sdr25") && no_18v == false)
host->caps |= MMC_CAP_UHS_SDR25 | MMC_CAP_SIGNALING_180;
if (OF_hasprop(node, "sd-uhs-sdr50") && no_18v == false)
host->caps |= MMC_CAP_UHS_SDR50 | MMC_CAP_SIGNALING_180;
if (OF_hasprop(node, "sd-uhs-sdr104") && no_18v == false)
host->caps |= MMC_CAP_UHS_SDR104 | MMC_CAP_SIGNALING_180;
if (OF_hasprop(node, "sd-uhs-ddr50") && no_18v == false)
host->caps |= MMC_CAP_UHS_DDR50 | MMC_CAP_SIGNALING_180;
}
static inline void
mmc_fdt_parse_mmc_speed(phandle_t node, struct mmc_host *host)
{
/* Parse eMMC supported modes */
if (OF_hasprop(node, "cap-mmc-highspeed"))
host->caps |= MMC_CAP_HSPEED;
if (OF_hasprop(node, "mmc-ddr-1_2v"))
host->caps |= MMC_CAP_MMC_DDR52_120 | MMC_CAP_SIGNALING_120;
if (OF_hasprop(node, "mmc-ddr-1_8v"))
host->caps |= MMC_CAP_MMC_DDR52_180 | MMC_CAP_SIGNALING_180;
if (OF_hasprop(node, "mmc-ddr-3_3v"))
host->caps |= MMC_CAP_SIGNALING_330;
if (OF_hasprop(node, "mmc-hs200-1_2v"))
host->caps |= MMC_CAP_MMC_HS200_120 | MMC_CAP_SIGNALING_120;
if (OF_hasprop(node, "mmc-hs200-1_8v"))
host->caps |= MMC_CAP_MMC_HS200_180 | MMC_CAP_SIGNALING_180;
if (OF_hasprop(node, "mmc-hs400-1_2v"))
host->caps |= MMC_CAP_MMC_HS400_120 | MMC_CAP_SIGNALING_120;
if (OF_hasprop(node, "mmc-hs400-1_8v"))
host->caps |= MMC_CAP_MMC_HS400_180 | MMC_CAP_SIGNALING_180;
if (OF_hasprop(node, "mmc-hs400-enhanced-strobe"))
host->caps |= MMC_CAP_MMC_ENH_STROBE;
}
int
mmc_fdt_parse(device_t dev, phandle_t node, struct mmc_fdt_helper *helper,
mmc_fdt_parse(device_t dev, phandle_t node, struct mmc_helper *helper,
struct mmc_host *host)
{
uint32_t bus_width;
struct mmc_helper mmc_helper;
phandle_t pwrseq_xref;
if (node <= 0)
node = ofw_bus_get_node(dev);
if (node <= 0)
return (ENXIO);
memset(&mmc_helper, 0, sizeof(mmc_helper));
mmc_parse(dev, &mmc_helper, host);
if (OF_getencprop(node, "bus-width", &bus_width, sizeof(uint32_t)) <= 0)
bus_width = 1;
if (bus_width >= 4)
host->caps |= MMC_CAP_4_BIT_DATA;
if (bus_width >= 8)
host->caps |= MMC_CAP_8_BIT_DATA;
/*
* max-frequency is optional, drivers should tweak this value
* if it's not present based on the clock that the mmc controller
* operates on
*/
OF_getencprop(node, "max-frequency", &host->f_max, sizeof(uint32_t));
if (OF_hasprop(node, "broken-cd"))
helper->props |= MMC_PROP_BROKEN_CD;
if (OF_hasprop(node, "non-removable"))
helper->props |= MMC_PROP_NON_REMOVABLE;
if (OF_hasprop(node, "wp-inverted"))
helper->props |= MMC_PROP_WP_INVERTED;
if (OF_hasprop(node, "cd-inverted"))
helper->props |= MMC_PROP_CD_INVERTED;
if (OF_hasprop(node, "no-sdio"))
helper->props |= MMC_PROP_NO_SDIO;
if (OF_hasprop(node, "no-sd"))
helper->props |= MMC_PROP_NO_SD;
if (OF_hasprop(node, "no-mmc"))
helper->props |= MMC_PROP_NO_MMC;
if (!(helper->props & MMC_PROP_NO_SD))
mmc_fdt_parse_sd_speed(node, host);
if (!(helper->props & MMC_PROP_NO_MMC))
mmc_fdt_parse_mmc_speed(node, host);
helper->props = mmc_helper.props;
#ifdef EXT_RESOURCES
/*
@ -200,7 +116,7 @@ mmc_fdt_parse(device_t dev, phandle_t node, struct mmc_fdt_helper *helper,
static void
cd_intr(void *arg)
{
struct mmc_fdt_helper *helper = arg;
struct mmc_helper *helper = arg;
taskqueue_enqueue_timeout(taskqueue_swi_giant,
&helper->cd_delayed_task, -(hz / 2));
@ -209,7 +125,7 @@ cd_intr(void *arg)
static void
cd_card_task(void *arg, int pending __unused)
{
struct mmc_fdt_helper *helper = arg;
struct mmc_helper *helper = arg;
bool cd_present;
cd_present = mmc_fdt_gpio_get_present(helper);
@ -228,7 +144,7 @@ cd_card_task(void *arg, int pending __unused)
* Card detect setup.
*/
static void
cd_setup(struct mmc_fdt_helper *helper, phandle_t node)
cd_setup(struct mmc_helper *helper, phandle_t node)
{
int pincaps;
device_t dev;
@ -330,7 +246,7 @@ cd_setup(struct mmc_fdt_helper *helper, phandle_t node)
* Write protect setup.
*/
static void
wp_setup(struct mmc_fdt_helper *helper, phandle_t node)
wp_setup(struct mmc_helper *helper, phandle_t node)
{
device_t dev;
@ -352,7 +268,7 @@ wp_setup(struct mmc_fdt_helper *helper, phandle_t node)
}
int
mmc_fdt_gpio_setup(device_t dev, phandle_t node, struct mmc_fdt_helper *helper,
mmc_fdt_gpio_setup(device_t dev, phandle_t node, struct mmc_helper *helper,
mmc_fdt_cd_handler handler)
{
@ -377,7 +293,7 @@ mmc_fdt_gpio_setup(device_t dev, phandle_t node, struct mmc_fdt_helper *helper,
}
void
mmc_fdt_gpio_teardown(struct mmc_fdt_helper *helper)
mmc_fdt_gpio_teardown(struct mmc_helper *helper)
{
if (helper == NULL)
@ -396,7 +312,7 @@ mmc_fdt_gpio_teardown(struct mmc_fdt_helper *helper)
}
bool
mmc_fdt_gpio_get_present(struct mmc_fdt_helper *helper)
mmc_fdt_gpio_get_present(struct mmc_helper *helper)
{
bool pinstate;
@ -411,7 +327,7 @@ mmc_fdt_gpio_get_present(struct mmc_fdt_helper *helper)
}
bool
mmc_fdt_gpio_get_readonly(struct mmc_fdt_helper *helper)
mmc_fdt_gpio_get_readonly(struct mmc_helper *helper)
{
bool pinstate;
@ -427,7 +343,7 @@ mmc_fdt_gpio_get_readonly(struct mmc_fdt_helper *helper)
}
void
mmc_fdt_set_power(struct mmc_fdt_helper *helper, enum mmc_power_mode power_mode)
mmc_fdt_set_power(struct mmc_helper *helper, enum mmc_power_mode power_mode)
{
int reg_status;
int rv;

42
sys/dev/mmc/mmc_fdt_helpers.h
View file

@ -37,43 +37,17 @@
#include <dev/extres/regulator/regulator.h>
#endif
struct mmc_fdt_helper {
device_t dev;
gpio_pin_t wp_pin;
gpio_pin_t cd_pin;
void * cd_ihandler;
struct resource * cd_ires;
int cd_irid;
void (*cd_handler)(device_t, bool);
struct timeout_task cd_delayed_task;
bool cd_disabled;
bool wp_disabled;
bool cd_present;
uint32_t props;
#define MMC_PROP_BROKEN_CD (1 << 0)
#define MMC_PROP_NON_REMOVABLE (1 << 1)
#define MMC_PROP_WP_INVERTED (1 << 2)
#define MMC_PROP_CD_INVERTED (1 << 3)
#define MMC_PROP_DISABLE_WP (1 << 4)
#define MMC_PROP_NO_SDIO (1 << 5)
#define MMC_PROP_NO_SD (1 << 6)
#define MMC_PROP_NO_MMC (1 << 7)
#include <dev/mmc/mmc_helpers.h>
#ifdef EXT_RESOURCES
regulator_t vmmc_supply;
regulator_t vqmmc_supply;
#endif
device_t mmc_pwrseq;
};
#define mmc_fdt_helper mmc_helper /* For backwards compatibility */
typedef void (*mmc_fdt_cd_handler)(device_t dev, bool present);
int mmc_fdt_parse(device_t dev, phandle_t node, struct mmc_fdt_helper *helper, struct mmc_host *host);
int mmc_fdt_gpio_setup(device_t dev, phandle_t node, struct mmc_fdt_helper *helper, mmc_fdt_cd_handler handler);
void mmc_fdt_gpio_teardown(struct mmc_fdt_helper *helper);
bool mmc_fdt_gpio_get_present(struct mmc_fdt_helper *helper);
bool mmc_fdt_gpio_get_readonly(struct mmc_fdt_helper *helper);
void mmc_fdt_set_power(struct mmc_fdt_helper *helper, enum mmc_power_mode power_mode);
int mmc_fdt_parse(device_t dev, phandle_t node, struct mmc_helper *helper, struct mmc_host *host);
int mmc_fdt_gpio_setup(device_t dev, phandle_t node, struct mmc_helper *helper, mmc_fdt_cd_handler handler);
void mmc_fdt_gpio_teardown(struct mmc_helper *helper);
bool mmc_fdt_gpio_get_present(struct mmc_helper *helper);
bool mmc_fdt_gpio_get_readonly(struct mmc_helper *helper);
void mmc_fdt_set_power(struct mmc_helper *helper, enum mmc_power_mode power_mode);
#endif

134
sys/dev/mmc/mmc_helpers.c Normal file
View file

@ -0,0 +1,134 @@
/*
* Copyright 2019 Emmanuel Vadot <manu@freebsd.org>
* Copyright (c) 2017 Ian Lepore <ian@freebsd.org> All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/gpio.h>
#include <sys/taskqueue.h>
#include <dev/mmc/bridge.h>
#include <dev/mmc/mmc_helpers.h>
static inline void
mmc_parse_sd_speed(device_t dev, struct mmc_host *host)
{
bool no_18v = false;
/*
* Parse SD supported modes
* All UHS-I modes requires 1.8V signaling.
*/
if (device_has_property(dev, "no-1-8-v"))
no_18v = true;
if (device_has_property(dev, "cap-sd-highspeed"))
host->caps |= MMC_CAP_HSPEED;
if (device_has_property(dev, "sd-uhs-sdr12") && !no_18v)
host->caps |= MMC_CAP_UHS_SDR12 | MMC_CAP_SIGNALING_180;
if (device_has_property(dev, "sd-uhs-sdr25") && !no_18v)
host->caps |= MMC_CAP_UHS_SDR25 | MMC_CAP_SIGNALING_180;
if (device_has_property(dev, "sd-uhs-sdr50") && !no_18v)
host->caps |= MMC_CAP_UHS_SDR50 | MMC_CAP_SIGNALING_180;
if (device_has_property(dev, "sd-uhs-sdr104") && !no_18v)
host->caps |= MMC_CAP_UHS_SDR104 | MMC_CAP_SIGNALING_180;
if (device_has_property(dev, "sd-uhs-ddr50") && !no_18v)
host->caps |= MMC_CAP_UHS_DDR50 | MMC_CAP_SIGNALING_180;
}
static inline void
mmc_parse_mmc_speed(device_t dev, struct mmc_host *host)
{
/* Parse eMMC supported modes */
if (device_has_property(dev, "cap-mmc-highspeed"))
host->caps |= MMC_CAP_HSPEED;
if (device_has_property(dev, "mmc-ddr-1_2v"))
host->caps |= MMC_CAP_MMC_DDR52_120 | MMC_CAP_SIGNALING_120;
if (device_has_property(dev, "mmc-ddr-1_8v"))
host->caps |= MMC_CAP_MMC_DDR52_180 | MMC_CAP_SIGNALING_180;
if (device_has_property(dev, "mmc-ddr-3_3v"))
host->caps |= MMC_CAP_SIGNALING_330;
if (device_has_property(dev, "mmc-hs200-1_2v"))
host->caps |= MMC_CAP_MMC_HS200_120 | MMC_CAP_SIGNALING_120;
if (device_has_property(dev, "mmc-hs200-1_8v"))
host->caps |= MMC_CAP_MMC_HS200_180 | MMC_CAP_SIGNALING_180;
if (device_has_property(dev, "mmc-hs400-1_2v"))
host->caps |= MMC_CAP_MMC_HS400_120 | MMC_CAP_SIGNALING_120;
if (device_has_property(dev, "mmc-hs400-1_8v"))
host->caps |= MMC_CAP_MMC_HS400_180 | MMC_CAP_SIGNALING_180;
if (device_has_property(dev, "mmc-hs400-enhanced-strobe"))
host->caps |= MMC_CAP_MMC_ENH_STROBE;
}
int
mmc_parse(device_t dev, struct mmc_helper *helper, struct mmc_host *host)
{
uint64_t bus_width, max_freq;
bus_width = 0;
if (device_get_property(dev, "bus-width", &bus_width, sizeof(uint64_t)) <= 0)
bus_width = 1;
if (bus_width >= 4)
host->caps |= MMC_CAP_4_BIT_DATA;
if (bus_width >= 8)
host->caps |= MMC_CAP_8_BIT_DATA;
/*
* max-frequency is optional, drivers should tweak this value
* if it's not present based on the clock that the mmc controller
* operates on
*/
max_freq = 0;
device_get_property(dev, "max-frequency", &max_freq, sizeof(uint64_t));
host->f_max = max_freq;
if (device_has_property(dev, "broken-cd"))
helper->props |= MMC_PROP_BROKEN_CD;
if (device_has_property(dev, "non-removable"))
helper->props |= MMC_PROP_NON_REMOVABLE;
if (device_has_property(dev, "wp-inverted"))
helper->props |= MMC_PROP_WP_INVERTED;
if (device_has_property(dev, "cd-inverted"))
helper->props |= MMC_PROP_CD_INVERTED;
if (device_has_property(dev, "no-sdio"))
helper->props |= MMC_PROP_NO_SDIO;
if (device_has_property(dev, "no-sd"))
helper->props |= MMC_PROP_NO_SD;
if (device_has_property(dev, "no-mmc"))
helper->props |= MMC_PROP_NO_MMC;
if (!(helper->props & MMC_PROP_NO_SD))
mmc_parse_sd_speed(dev, host);
if (!(helper->props & MMC_PROP_NO_MMC))
mmc_parse_mmc_speed(dev, host);
return (0);
}

70
sys/dev/mmc/mmc_helpers.h Normal file
View file

@ -0,0 +1,70 @@
/*
* Copyright 2019 Emmanuel Vadot <manu@freebsd.org>
* Copyright (c) 2017 Ian Lepore <ian@freebsd.org> All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MMC_HELPERS_H_
#define _MMC_HELPERS_H_
#include <dev/gpio/gpiobusvar.h>
#ifdef EXT_RESOURCES
#include <dev/extres/regulator/regulator.h>
#endif
struct mmc_helper {
device_t dev;
gpio_pin_t wp_pin;
gpio_pin_t cd_pin;
void * cd_ihandler;
struct resource * cd_ires;
int cd_irid;
void (*cd_handler)(device_t, bool);
struct timeout_task cd_delayed_task;
bool cd_disabled;
bool wp_disabled;
bool cd_present;
uint32_t props;
#define MMC_PROP_BROKEN_CD (1 << 0)
#define MMC_PROP_NON_REMOVABLE (1 << 1)
#define MMC_PROP_WP_INVERTED (1 << 2)
#define MMC_PROP_CD_INVERTED (1 << 3)
#define MMC_PROP_DISABLE_WP (1 << 4)
#define MMC_PROP_NO_SDIO (1 << 5)
#define MMC_PROP_NO_SD (1 << 6)
#define MMC_PROP_NO_MMC (1 << 7)
#ifdef EXT_RESOURCES
regulator_t vmmc_supply;
regulator_t vqmmc_supply;
#endif
device_t mmc_pwrseq;
};
int mmc_parse(device_t dev, struct mmc_helper *helper,
struct mmc_host *host);
#endif

2
sys/dev/sdhci/sdhci_fsl_fdt.c
View file

@ -106,7 +106,7 @@ struct sdhci_fsl_fdt_softc {
bool slot_init_done;
uint32_t cmd_and_mode;
uint16_t sdclk_bits;
struct mmc_fdt_helper fdt_helper;
struct mmc_helper fdt_helper;
uint32_t (* read)(struct sdhci_fsl_fdt_softc *, bus_size_t);
void (* write)(struct sdhci_fsl_fdt_softc *, bus_size_t, uint32_t);

2
sys/dev/sdhci/sdhci_xenon.c
View file

@ -94,7 +94,7 @@ struct sdhci_xenon_softc {
uint8_t zpr; /* PHY ZPR */
bool slow_mode; /* PHY slow mode */
struct mmc_fdt_helper mmc_helper; /* MMC helper for parsing FDT */
struct mmc_helper mmc_helper; /* MMC helper for parsing FDT */
};
static uint8_t