Furquan Shaikh (furquan@google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17683
-gerrit
commit 139a0a26145ebf34604cc310f5b2df334d673000 Author: Furquan Shaikh furquan@chromium.org Date: Thu Dec 1 01:02:44 2016 -0800
spi: Pass pointer to spi_slave structure in spi_setup_slave
For spi_setup_slave, instead of making the platform driver return a pointer to spi_slave structure, pass in a structure pointer that can be filled in by the driver as required. This removes the need for platform drivers to maintain a slave structure in data/CAR section.
BUG=chrome-os-partner:59832 BRANCH=None TEST=Compiles successfully
Change-Id: Ia15a4f88ef4dcfdf616bb1c22261e7cb642a7573 Signed-off-by: Furquan Shaikh furquan@chromium.org --- src/drivers/spi/spi_flash.c | 11 ++++--- src/drivers/spi/tpm/tis.c | 10 +++++-- src/ec/google/chromeec/ec_spi.c | 14 +++++---- src/include/spi-generic.h | 7 +++-- src/soc/broadcom/cygnus/spi.c | 18 ++++++------ src/soc/imgtec/pistachio/spi.c | 46 ++++++++++++++++++------------ src/soc/intel/apollolake/spi.c | 9 ++---- src/soc/intel/baytrail/spi.c | 13 ++------- src/soc/intel/braswell/spi.c | 13 ++------- src/soc/intel/broadwell/spi.c | 13 ++------- src/soc/intel/fsp_baytrail/spi.c | 13 ++------- src/soc/intel/fsp_broadwell_de/spi.c | 13 ++------- src/soc/intel/skylake/flash_controller.c | 9 ++---- src/soc/marvell/armada38x/spi.c | 8 ++---- src/soc/marvell/bg4cd/spi.c | 4 +-- src/soc/mediatek/mt8173/spi.c | 22 +++++++------- src/soc/nvidia/tegra124/spi.c | 9 ++++-- src/soc/nvidia/tegra210/spi.c | 9 ++++-- src/soc/qualcomm/ipq40xx/include/soc/spi.h | 5 ---- src/soc/qualcomm/ipq40xx/spi.c | 34 +++++++++++++++++----- src/soc/qualcomm/ipq806x/include/soc/spi.h | 5 ---- src/soc/qualcomm/ipq806x/spi.c | 32 +++++++++++++++++---- src/soc/rockchip/common/spi.c | 18 ++++++------ src/soc/samsung/exynos5420/spi.c | 13 ++++++--- src/southbridge/amd/agesa/hudson/spi.c | 14 +++------ src/southbridge/amd/cimx/sb800/spi.c | 14 +++------ src/southbridge/amd/sb700/spi.c | 14 +++------ src/southbridge/intel/common/spi.c | 13 ++------- src/southbridge/intel/fsp_rangeley/spi.c | 13 ++------- 29 files changed, 191 insertions(+), 225 deletions(-)
diff --git a/src/drivers/spi/spi_flash.c b/src/drivers/spi/spi_flash.c index 54a7c11..16ebc9c 100644 --- a/src/drivers/spi/spi_flash.c +++ b/src/drivers/spi/spi_flash.c @@ -313,25 +313,24 @@ static struct spi_flash *__spi_flash_probe(struct spi_slave *spi)
struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs) { - struct spi_slave *spi; + struct spi_slave spi; struct spi_flash *flash;
- spi = spi_setup_slave(bus, cs); - if (!spi) { + if (spi_setup_slave(bus, cs, &spi)) { printk(BIOS_WARNING, "SF: Failed to set up slave\n"); return NULL; }
/* Try special programmer probe if any (without force). */ - flash = spi_flash_programmer_probe(spi, 0); + flash = spi_flash_programmer_probe(&spi, 0);
/* If flash is not found, try generic spi flash probe. */ if (!flash) - flash = __spi_flash_probe(spi); + flash = __spi_flash_probe(&spi);
/* If flash is not yet found, force special programmer probe if any. */ if (!flash) - flash = spi_flash_programmer_probe(spi, 1); + flash = spi_flash_programmer_probe(&spi, 1);
/* Give up -- nothing more to try if flash is not found. */ if (!flash) { diff --git a/src/drivers/spi/tpm/tis.c b/src/drivers/spi/tpm/tis.c index 055525b..d3c727c 100644 --- a/src/drivers/spi/tpm/tis.c +++ b/src/drivers/spi/tpm/tis.c @@ -58,10 +58,16 @@ int tis_close(void)
int tis_init(void) { + struct spi_slave spi; struct tpm2_info info;
- if (tpm2_init(spi_setup_slave(CONFIG_DRIVER_TPM_SPI_BUS, - CONFIG_DRIVER_TPM_SPI_CHIP))) { + if (spi_setup_slave(CONFIG_DRIVER_TPM_SPI_BUS, + CONFIG_DRIVER_TPM_SPI_CHIP, &spi)) { + printk(BIOS_ERR, "Failed to setup TPM SPI slave\n"); + return -1; + } + + if (tpm2_init(&spi)) { printk(BIOS_ERR, "Failed to initialize TPM SPI interface\n"); return -1; } diff --git a/src/ec/google/chromeec/ec_spi.c b/src/ec/google/chromeec/ec_spi.c index a0049c6..810979e 100644 --- a/src/ec/google/chromeec/ec_spi.c +++ b/src/ec/google/chromeec/ec_spi.c @@ -101,13 +101,17 @@ out:
int google_chromeec_command(struct chromeec_command *cec_command) { - static struct spi_slave *slave = NULL; - if (!slave) { - slave = spi_setup_slave(CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS, - CONFIG_EC_GOOGLE_CHROMEEC_SPI_CHIP); + static int done = 0; + static struct spi_slave slave; + + if (!done) { + if (spi_setup_slave(CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS, + CONFIG_EC_GOOGLE_CHROMEEC_SPI_CHIP, &slave)) + return -1; stopwatch_init(&cs_cooldown_sw); + done = 1; } - return crosec_command_proto(cec_command, crosec_spi_io, slave); + return crosec_command_proto(cec_command, crosec_spi_io, &slave); }
#ifndef __PRE_RAM__ diff --git a/src/include/spi-generic.h b/src/include/spi-generic.h index 7c53611..c8b209d 100644 --- a/src/include/spi-generic.h +++ b/src/include/spi-generic.h @@ -48,11 +48,12 @@ void spi_init(void); * * bus: Bus ID of the slave chip. * cs: Chip select ID of the slave chip on the specified bus. + * slave: Pointer to slave structure that needs to be initialized. * - * Returns: A spi_slave reference that can be used in subsequent SPI - * calls, or NULL if one or more of the parameters are not supported. + * Returns: + * 0 on success, -1 on error */ -struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs); +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave);
/*----------------------------------------------------------------------- * Claim the bus and prepare it for communication with a given slave. diff --git a/src/soc/broadcom/cygnus/spi.c b/src/soc/broadcom/cygnus/spi.c index 13b6976..810f2c2 100644 --- a/src/soc/broadcom/cygnus/spi.c +++ b/src/soc/broadcom/cygnus/spi.c @@ -76,9 +76,6 @@
/* QSPI private data */ struct qspi_priv { - /* Slave entry */ - struct spi_slave slave; - /* Specified SPI parameters */ unsigned int max_hz; unsigned int spi_mode; @@ -94,16 +91,19 @@ struct qspi_priv {
static struct qspi_priv qspi_slave;
-/* Macro to get the private data */ -#define to_qspi_slave(s) container_of(s, struct qspi_priv, slave) +static struct qspi_priv *to_qspi_slave(const struct spi_slave *slave) +{ + return &qspi_slave; +}
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { struct qspi_priv *priv = &qspi_slave; unsigned int spbr;
- priv->slave.bus = bus; - priv->slave.cs = cs; + slave->bus = bus; + slave->cs = cs; + priv->max_hz = QSPI_MAX_HZ; priv->spi_mode = QSPI_MODE; priv->reg = (void *)(IPROC_QSPI_BASE); @@ -129,7 +129,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) (8 << 2) | /* 8 bits per word */ (priv->spi_mode & 3)); /* mode: CPOL / CPHA */
- return &priv->slave; + return 0; }
static int mspi_enable(struct qspi_priv *priv) diff --git a/src/soc/imgtec/pistachio/spi.c b/src/soc/imgtec/pistachio/spi.c index 9664989..2dd3ecd 100644 --- a/src/soc/imgtec/pistachio/spi.c +++ b/src/soc/imgtec/pistachio/spi.c @@ -26,7 +26,6 @@ #define IMGTEC_SPI_MAX_TRANSFER_SIZE ((1 << 16) - 1)
struct img_spi_slave { - struct spi_slave slave; /* SPIM instance device parameters */ struct spim_device_parameters device_parameters; /* SPIM instance base address */ @@ -55,13 +54,20 @@ static int wait_status(u32 reg, u32 shift) return SPIM_OK; }
+static struct img_spi_slave *get_img_slave(const struct spi_slave *slave) +{ + return img_spi_slaves + slave->bus * SPIM_NUM_PORTS_PER_BLOCK + + slave->cs; +} + /* Transmitter function. Fills TX FIFO with data before enabling SPIM */ static int transmitdata(const struct spi_slave *slave, u8 *buffer, u32 size) { u32 blocksize, base, write_data; int ret; + struct img_spi_slave *img_slave = get_img_slave(slave);
- base = container_of(slave, struct img_spi_slave, slave)->base; + base = img_slave->base; while (size) { /* Wait until FIFO empty */ write32(base + SPFI_INT_CLEAR_REG_OFFSET, SPFI_SDE_MASK); @@ -97,8 +103,9 @@ static int receivedata(const struct spi_slave *slave, u8 *buffer, u32 size) { u32 read_data, base; int ret; + struct img_spi_slave *img_slave = get_img_slave(slave);
- base = container_of(slave, struct img_spi_slave, slave)->base; + base = img_slave->base; /* * Do 32bit reads first. Clear status GDEX32BIT here so that the first * status reg. read gets the actual bit state @@ -141,10 +148,10 @@ static void setparams(const struct spi_slave *slave, u32 port, struct spim_device_parameters *params) { u32 spim_parameters, port_state, base; + struct img_spi_slave *img_slave = get_img_slave(slave);
+ base = img_slave->base; spim_parameters = 0; - - base = container_of(slave, struct img_spi_slave, slave)->base; port_state = read32(base + SPFI_PORT_STATE_REG_OFFSET); port_state &= ~((SPIM_PORT0_MASK>>port)|SPFI_PORT_SELECT_MASK); port_state |= params->cs_idle_level<<(SPIM_CS0_IDLE_SHIFT-port); @@ -246,7 +253,9 @@ static u32 control_reg_setup(struct spim_buffer *first, static int check_buffers(const struct spi_slave *slave, struct spim_buffer *first, struct spim_buffer *second){
- if (!(container_of(slave, struct img_spi_slave, slave)->initialised)) + struct img_spi_slave *img_slave = get_img_slave(slave); + + if (!(img_slave->initialised)) return -SPIM_API_NOT_INITIALISED; /* * First operation must always be defined @@ -327,8 +336,9 @@ static int spim_io(const struct spi_slave *slave, struct spim_buffer *first, u32 reg, base; int i, trans_count, ret; struct spim_buffer *transaction[2]; + struct img_spi_slave *img_slave = get_img_slave(slave);
- base = container_of(slave, struct img_spi_slave, slave)->base; + base = img_slave->base;
ret = check_buffers(slave, first, second); if (ret) @@ -408,11 +418,9 @@ void spi_init(void) }
/* Set up communications parameters for a SPI slave. */ -struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - struct img_spi_slave *img_slave = NULL; - struct spi_slave *slave; struct spim_device_parameters *device_parameters; u32 base;
@@ -426,21 +434,21 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) default: printk(BIOS_ERR, "%s: Error: unsupported bus.\n", __func__); - return NULL; + return -1; } if (cs > SPIM_DEVICE4) { printk(BIOS_ERR, "%s: Error: unsupported chipselect.\n", __func__); - return NULL; + return -1; }
- img_slave = img_spi_slaves + bus * SPIM_NUM_PORTS_PER_BLOCK + cs; - slave = &(img_slave->slave); + slave->bus = bus; + slave->cs = cs; + + img_slave = get_img_slave(slave); device_parameters = &(img_slave->device_parameters);
img_slave->base = base; - slave->bus = bus; - slave->cs = cs;
device_parameters->bitrate = 64; device_parameters->cs_setup = 0; @@ -451,7 +459,7 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) device_parameters->data_idle_level = 0; img_slave->initialised = IMG_FALSE;
- return slave; + return 0; }
/* Claim the bus and prepare it for communication */ @@ -465,7 +473,7 @@ int spi_claim_bus(const struct spi_slave *slave) __func__); return -SPIM_API_NOT_INITIALISED; } - img_slave = container_of(slave, struct img_spi_slave, slave); + img_slave = get_img_slave(slave); if (img_slave->initialised) return SPIM_OK; /* Check device parameters */ @@ -495,7 +503,7 @@ void spi_release_bus(const struct spi_slave *slave) __func__); return; } - img_slave = container_of(slave, struct img_spi_slave, slave); + img_slave = get_img_slave(slave); img_slave->initialised = IMG_FALSE; /* Soft reset peripheral internals */ write32(img_slave->base + SPFI_CONTROL_REG_OFFSET, diff --git a/src/soc/intel/apollolake/spi.c b/src/soc/intel/apollolake/spi.c index 6e873f4..ca56702 100644 --- a/src/soc/intel/apollolake/spi.c +++ b/src/soc/intel/apollolake/spi.c @@ -344,7 +344,6 @@ static int nuclear_spi_status(const struct spi_flash *flash, uint8_t *reg) return ret; }
-static struct spi_slave boot_spi CAR_GLOBAL; static struct spi_flash boot_flash CAR_GLOBAL;
/* @@ -391,20 +390,18 @@ struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force) return flash; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { BOILERPLATE_CREATE_CTX(ctx);
/* This is special hardware. We expect bus 0 and CS line 0 here. */ if ((bus != 0) || (cs != 0)) - return NULL; - - struct spi_slave *slave = car_get_var_ptr(&boot_spi); + return -1;
slave->bus = bus; slave->cs = cs;
- return slave; + return 0; }
int spi_read_status(uint8_t *status) diff --git a/src/soc/intel/baytrail/spi.c b/src/soc/intel/baytrail/spi.c index 13f8806..b4f95aa 100644 --- a/src/soc/intel/baytrail/spi.c +++ b/src/soc/intel/baytrail/spi.c @@ -260,20 +260,11 @@ static void ich_set_bbar(uint32_t minaddr) writel_(ichspi_bbar, cntlr.bbar); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - ich_spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n"); - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - slave->bus = bus; slave->cs = cs; - return slave; + return 0; }
static ich9_spi_regs *spi_regs(void) diff --git a/src/soc/intel/braswell/spi.c b/src/soc/intel/braswell/spi.c index 34e031b..4236e6f 100644 --- a/src/soc/intel/braswell/spi.c +++ b/src/soc/intel/braswell/spi.c @@ -229,20 +229,11 @@ static void read_reg(void *src, void *value, uint32_t size) } }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - ich_spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - printk(BIOS_ERR, "ICH SPI: Bad allocation\n"); - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - slave->bus = bus; slave->cs = cs; - return slave; + return 0; }
static ich9_spi_regs *spi_regs(void) diff --git a/src/soc/intel/broadwell/spi.c b/src/soc/intel/broadwell/spi.c index 6aa7dd3..5220970 100644 --- a/src/soc/intel/broadwell/spi.c +++ b/src/soc/intel/broadwell/spi.c @@ -259,20 +259,11 @@ static void ich_set_bbar(uint32_t minaddr) writel_(ichspi_bbar, cntlr.bbar); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - ich_spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n"); - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - slave->bus = bus; slave->cs = cs; - return slave; + return 0; }
void spi_init(void) diff --git a/src/soc/intel/fsp_baytrail/spi.c b/src/soc/intel/fsp_baytrail/spi.c index 232366c..06b160c 100644 --- a/src/soc/intel/fsp_baytrail/spi.c +++ b/src/soc/intel/fsp_baytrail/spi.c @@ -249,20 +249,11 @@ static void read_reg(const void *src, void *value, uint32_t size) } }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - ich_spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n"); - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - slave->bus = bus; slave->cs = cs; - return slave; + return 0; }
static ich9_spi_regs *spi_regs(void) diff --git a/src/soc/intel/fsp_broadwell_de/spi.c b/src/soc/intel/fsp_broadwell_de/spi.c index c38fbce..8af5686 100644 --- a/src/soc/intel/fsp_broadwell_de/spi.c +++ b/src/soc/intel/fsp_broadwell_de/spi.c @@ -259,20 +259,11 @@ static void ich_set_bbar(uint32_t minaddr) writel_(ichspi_bbar, cntlr.bbar); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave * slave) { - ich_spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n"); - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - slave->bus = bus; slave->cs = cs; - return slave; + return 0; }
void spi_init(void) diff --git a/src/soc/intel/skylake/flash_controller.c b/src/soc/intel/skylake/flash_controller.c index 8aee796..734d9d3 100644 --- a/src/soc/intel/skylake/flash_controller.c +++ b/src/soc/intel/skylake/flash_controller.c @@ -342,7 +342,6 @@ int pch_hwseq_read_status(const struct spi_flash *flash, u8 *reg) return 0; }
-static struct spi_slave boot_spi CAR_GLOBAL; static struct spi_flash boot_flash CAR_GLOBAL;
struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force) @@ -370,18 +369,16 @@ struct spi_flash *spi_flash_programmer_probe(struct spi_slave *spi, int force) return flash; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { /* This is special hardware. We expect bus 0 and CS line 0 here. */ if ((bus != 0) || (cs != 0)) - return NULL; - - struct spi_slave *slave = car_get_var_ptr(&boot_spi); + return -1;
slave->bus = bus; slave->cs = cs;
- return slave; + return 0; }
int spi_flash_get_fpr_info(struct fpr_info *info) diff --git a/src/soc/marvell/armada38x/spi.c b/src/soc/marvell/armada38x/spi.c index 9a0b963..b628170 100644 --- a/src/soc/marvell/armada38x/spi.c +++ b/src/soc/marvell/armada38x/spi.c @@ -153,8 +153,6 @@ static MV_SPI_TYPE_INFO spi_types[] = { {.en16_bit = MV_TRUE, param define end *******************************************************************************/
-static struct spi_slave s_spi; - static int mv_spi_baud_rate_set(unsigned char spi_id, unsigned int serial_baud_rate); static void mv_spi_cs_deassert(unsigned char spi_id); @@ -444,14 +442,12 @@ static int mrvl_spi_xfer(const struct spi_slave *slave, return 0; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - struct spi_slave *slave = &s_spi; - slave->bus = bus; slave->cs = cs; mv_spi_sys_init(bus, cs, CONFIG_SF_DEFAULT_SPEED); - return slave; + return 0; }
int spi_claim_bus(const struct spi_slave *slave) diff --git a/src/soc/marvell/bg4cd/spi.c b/src/soc/marvell/bg4cd/spi.c index 9a999b0..54161bc 100644 --- a/src/soc/marvell/bg4cd/spi.c +++ b/src/soc/marvell/bg4cd/spi.c @@ -15,9 +15,9 @@ #include <stddef.h> #include <spi-generic.h>
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - return NULL; + return -1; }
int spi_claim_bus(const struct spi_slave *slave) diff --git a/src/soc/mediatek/mt8173/spi.c b/src/soc/mediatek/mt8173/spi.c index f60de6c..d02f02d 100644 --- a/src/soc/mediatek/mt8173/spi.c +++ b/src/soc/mediatek/mt8173/spi.c @@ -47,9 +47,6 @@ enum {
static struct mtk_spi_bus spi_bus[1] = { { - .slave = { - .bus = 0, - }, .regs = (void *)SPI_BASE, .state = MTK_SPI_IDLE, } @@ -57,7 +54,8 @@ static struct mtk_spi_bus spi_bus[1] = {
static inline struct mtk_spi_bus *to_mtk_spi(const struct spi_slave *slave) { - return container_of(slave, struct mtk_spi_bus, slave); + assert(slave->bus >= ARRAY_SIZE(spi_bus)); + return &spi_bus[slave->bus]; }
static void spi_sw_reset(struct mtk_spi_regs *regs) @@ -162,24 +160,26 @@ static void mtk_spi_dump_data(const char *name, const uint8_t *data, #endif }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { struct mtk_spi_bus *eslave; - static struct spi_slave slave;
switch (bus) { case CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS: - eslave = &spi_bus[bus]; + slave->bus = bus; + slave->cs = cs; + eslave = to_mtk_spi(slave); assert(read32(&eslave->regs->spi_cfg0_reg) != 0); spi_sw_reset(eslave->regs); - return &eslave->slave; + return 0; case CONFIG_BOOT_DEVICE_SPI_FLASH_BUS: - slave.bus = bus; - slave.cs = cs; - return &slave; + slave->bus = bus; + slave->cs = cs; + return 0; default: die ("wrong bus number.\n"); }; + return -1; }
int spi_claim_bus(const struct spi_slave *slave) diff --git a/src/soc/nvidia/tegra124/spi.c b/src/soc/nvidia/tegra124/spi.c index 71b8735..d5b2915 100644 --- a/src/soc/nvidia/tegra124/spi.c +++ b/src/soc/nvidia/tegra124/spi.c @@ -811,11 +811,14 @@ int spi_xfer(const struct spi_slave *slave, const void *dout, size_t out_bytes, return ret; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { struct tegra_spi_channel *channel = to_tegra_spi(bus); if (!channel) - return NULL; + return -1;
- return &channel->slave; + slave->bus = channel->slave.bus; + slave->cs = channel->slave.cs; + + return 0; } diff --git a/src/soc/nvidia/tegra210/spi.c b/src/soc/nvidia/tegra210/spi.c index df3b8a1..cecf573 100644 --- a/src/soc/nvidia/tegra210/spi.c +++ b/src/soc/nvidia/tegra210/spi.c @@ -847,11 +847,14 @@ int spi_xfer(const struct spi_slave *slave, const void *dout, size_t out_bytes, return ret; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { struct tegra_spi_channel *channel = to_tegra_spi(bus); if (!channel) - return NULL; + return -1;
- return &channel->slave; + slave->cs = channel->slave.cs; + slave->bus = channel->slave.bus; + + return 0; } diff --git a/src/soc/qualcomm/ipq40xx/include/soc/spi.h b/src/soc/qualcomm/ipq40xx/include/soc/spi.h index 8ef1fbf..b91e6ca 100644 --- a/src/soc/qualcomm/ipq40xx/include/soc/spi.h +++ b/src/soc/qualcomm/ipq40xx/include/soc/spi.h @@ -186,9 +186,4 @@ struct ipq_spi_slave { int allocated; };
-static inline struct ipq_spi_slave *to_ipq_spi(const struct spi_slave *slave) -{ - return container_of(slave, struct ipq_spi_slave, slave); -} - #endif /* _IPQ40XX_SPI_H_ */ diff --git a/src/soc/qualcomm/ipq40xx/spi.c b/src/soc/qualcomm/ipq40xx/spi.c index 871f24b..cda3bea 100644 --- a/src/soc/qualcomm/ipq40xx/spi.c +++ b/src/soc/qualcomm/ipq40xx/spi.c @@ -207,7 +207,26 @@ void spi_init(void) memset(spi_slave_pool, 0, sizeof(spi_slave_pool)); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +static struct ipq_spi_slave *to_ipq_spi(const struct spi_slave *slave) +{ + struct ipq_spi_slave *ds; + size_t i; + + for (i = 0; i < ARRAY_SIZE(spi_slave_pool); i++) { + ds = spi_slave_pool + i; + + if (!ds->allocated) + continue; + + if ((ds->slave.bus == slave->bus) && + (ds->slave.cs == slave->cs)) + return ds; + } + + return NULL; +} + +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { struct ipq_spi_slave *ds = NULL; int i; @@ -218,16 +237,17 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) printk(BIOS_ERR, "SPI error: unsupported bus %d (Supported busses 0, 1 and 2) " "or chipselect\n", bus); - return NULL; + return -1; }
for (i = 0; i < ARRAY_SIZE(spi_slave_pool); i++) { if (spi_slave_pool[i].allocated) continue; ds = spi_slave_pool + i; - ds->slave.bus = bus; - ds->slave.cs = cs; - ds->regs = &spi_reg[bus]; + + ds->slave.bus = slave->bus = bus; + ds->slave.cs = slave->cs = cs; + ds->regs = &spi_reg[bus];
/* * TODO(vbendeb): @@ -238,11 +258,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) ds->mode = SPI_MODE3; ds->allocated = 1;
- return &ds->slave; + return 0; }
printk(BIOS_ERR, "SPI error: all %d pools busy\n", i); - return NULL; + return -1; }
/* diff --git a/src/soc/qualcomm/ipq806x/include/soc/spi.h b/src/soc/qualcomm/ipq806x/include/soc/spi.h index 5dedcda..98a15b8 100644 --- a/src/soc/qualcomm/ipq806x/include/soc/spi.h +++ b/src/soc/qualcomm/ipq806x/include/soc/spi.h @@ -271,9 +271,4 @@ struct ipq_spi_slave { int allocated; };
-static inline struct ipq_spi_slave *to_ipq_spi(const struct spi_slave *slave) -{ - return container_of(slave, struct ipq_spi_slave, slave); -} - #endif /* _IPQ806X_SPI_H_ */ diff --git a/src/soc/qualcomm/ipq806x/spi.c b/src/soc/qualcomm/ipq806x/spi.c index d1af720..81dc508 100644 --- a/src/soc/qualcomm/ipq806x/spi.c +++ b/src/soc/qualcomm/ipq806x/spi.c @@ -499,7 +499,26 @@ void spi_init() memset(spi_slave_pool, 0, sizeof(spi_slave_pool)); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +static struct ipq_spi_slave *to_ipq_spi(const struct spi_slave *slave) +{ + struct ipq_spi_slave *ds; + size_t i; + + for (i = 0; i < ARRAY_SIZE(spi_slave_pool); i++) { + ds = spi_slave_pool + i; + + if (!ds->allocated) + continue; + + if ((ds->slave.bus == slave->bus) && + (ds->slave.cs == slave->cs)) + return ds; + } + + return NULL; +} + +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { struct ipq_spi_slave *ds = NULL; int i; @@ -521,9 +540,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) if (spi_slave_pool[i].allocated) continue; ds = spi_slave_pool + i; - ds->slave.bus = bus; - ds->slave.cs = cs; - ds->regs = &spi_reg[bus]; + + ds->slave.bus = slave->bus = bus; + ds->slave.cs = slave->cs = cs; + ds->regs = &spi_reg[bus];
/* * TODO(vbendeb): @@ -534,11 +554,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) ds->mode = GSBI_SPI_MODE_0; ds->allocated = 1;
- return &ds->slave; + return 0; }
printk(BIOS_ERR, "SPI error: all %d pools busy\n", i); - return NULL; + return -1; }
/* diff --git a/src/soc/rockchip/common/spi.c b/src/soc/rockchip/common/spi.c index c5e5018..216ac86 100644 --- a/src/soc/rockchip/common/spi.c +++ b/src/soc/rockchip/common/spi.c @@ -27,7 +27,6 @@ #include <timer.h>
struct rockchip_spi_slave { - struct spi_slave slave; struct rockchip_spi *regs; };
@@ -37,30 +36,24 @@ struct rockchip_spi_slave {
static struct rockchip_spi_slave rockchip_spi_slaves[] = { { - .slave = { .bus = 0, }, .regs = (void *)SPI0_BASE, }, { - .slave = { .bus = 1, }, .regs = (void *)SPI1_BASE, }, { - .slave = { .bus = 2, }, .regs = (void *)SPI2_BASE, }, #ifdef SPI3_BASE { - .slave = { .bus = 3, }, .regs = (void *)SPI3_BASE, }, #ifdef SPI4_BASE { - .slave = { .bus = 4, }, .regs = (void *)SPI4_BASE, }, #ifdef SPI5_BASE { - .slave = { .bus = 5, }, .regs = (void *)SPI5_BASE, }, #endif @@ -70,13 +63,18 @@ static struct rockchip_spi_slave rockchip_spi_slaves[] = {
static struct rockchip_spi_slave *to_rockchip_spi(const struct spi_slave *slave) { - return container_of(slave, struct rockchip_spi_slave, slave); + assert(slave->bus >= 0 && slave->bus < ARRAY_SIZE(rockchip_spi_slaves)); + return &rockchip_spi_slaves[slave->bus]; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { assert(bus >= 0 && bus < ARRAY_SIZE(rockchip_spi_slaves)); - return &(rockchip_spi_slaves[bus].slave); + + slave->bus = bus; + slave->cs = cs; + + return 0; }
static void spi_cs_activate(const struct spi_slave *slave) diff --git a/src/soc/samsung/exynos5420/spi.c b/src/soc/samsung/exynos5420/spi.c index 02f04df..c809bb3 100644 --- a/src/soc/samsung/exynos5420/spi.c +++ b/src/soc/samsung/exynos5420/spi.c @@ -60,7 +60,7 @@ static struct exynos_spi_slave exynos_spi_slaves[3] = {
static inline struct exynos_spi_slave *to_exynos_spi(const struct spi_slave *slave) { - return container_of(slave, struct exynos_spi_slave, slave); + return &exynos_spi_slaves[slave->bus]; }
static void spi_sw_reset(struct exynos_spi *regs, int word) @@ -117,15 +117,20 @@ static void exynos_spi_init(struct exynos_spi *regs) spi_sw_reset(regs, 1); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { ASSERT(bus >= 0 && bus < 3); - struct exynos_spi_slave *eslave = &exynos_spi_slaves[bus]; + struct exynos_spi_slave *eslave; + + slave->bus = bus; + slave->cs = cs; + + eslave = to_exynos_spi(slave); if (!eslave->initialized) { exynos_spi_init(eslave->regs); eslave->initialized = 1; } - return &eslave->slave; + return 0; }
int spi_claim_bus(const struct spi_slave *slave) diff --git a/src/southbridge/amd/agesa/hudson/spi.c b/src/southbridge/amd/agesa/hudson/spi.c index 7bb0e3f..a8b3b2a 100644 --- a/src/southbridge/amd/agesa/hudson/spi.c +++ b/src/southbridge/amd/agesa/hudson/spi.c @@ -176,15 +176,9 @@ int chipset_volatile_group_end(const struct spi_flash *flash) return 0; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - struct spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - - return slave; + slave->bus = bus; + slave->cs = cs; + return 0; } diff --git a/src/southbridge/amd/cimx/sb800/spi.c b/src/southbridge/amd/cimx/sb800/spi.c index 2522c2e..d331060 100644 --- a/src/southbridge/amd/cimx/sb800/spi.c +++ b/src/southbridge/amd/cimx/sb800/spi.c @@ -168,15 +168,9 @@ int chipset_volatile_group_end(const struct spi_flash *flash) return 0; }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - struct spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - - return slave; + slave->bus = bus; + slave->cs = cs; + return 0; } diff --git a/src/southbridge/amd/sb700/spi.c b/src/southbridge/amd/sb700/spi.c index 2b1ae2d..fca401c 100644 --- a/src/southbridge/amd/sb700/spi.c +++ b/src/southbridge/amd/sb700/spi.c @@ -76,17 +76,11 @@ void spi_release_bus(const struct spi_slave *slave) /* Handled internally by the SB700 */ }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - struct spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - - return slave; + slave->bus = bus; + slave->cs = cs; + return 0; }
int spi_xfer(const struct spi_slave *slave, const void *dout, diff --git a/src/southbridge/intel/common/spi.c b/src/southbridge/intel/common/spi.c index 2d36d38..7e0cc20 100644 --- a/src/southbridge/intel/common/spi.c +++ b/src/southbridge/intel/common/spi.c @@ -285,20 +285,11 @@ static void ich_set_bbar(uint32_t minaddr) writel_(ichspi_bbar, cntlr.bbar); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - ich_spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n"); - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - slave->bus = bus; slave->cs = cs; - return slave; + return 0; }
void spi_init(void) diff --git a/src/southbridge/intel/fsp_rangeley/spi.c b/src/southbridge/intel/fsp_rangeley/spi.c index 8a0fac2..de676a9 100644 --- a/src/southbridge/intel/fsp_rangeley/spi.c +++ b/src/southbridge/intel/fsp_rangeley/spi.c @@ -322,20 +322,11 @@ static void ich_set_bbar(uint32_t minaddr) writel_(ichspi_bbar, cntlr.bbar); }
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs) +int spi_setup_slave(unsigned int bus, unsigned int cs, struct spi_slave *slave) { - ich_spi_slave *slave = malloc(sizeof(*slave)); - - if (!slave) { - printk(BIOS_DEBUG, "ICH SPI: Bad allocation\n"); - return NULL; - } - - memset(slave, 0, sizeof(*slave)); - slave->bus = bus; slave->cs = cs; - return slave; + return 0; }
/*