From 36b81af9e8ecea2bf58aae9a421720ed10f61b82 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Thu, 1 Dec 2016 01:02:44 -0800 Subject: 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 Reviewed-on: https://review.coreboot.org/17683 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- 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 +++------ 7 files changed, 16 insertions(+), 67 deletions(-) (limited to 'src/soc/intel') diff --git a/src/soc/intel/apollolake/spi.c b/src/soc/intel/apollolake/spi.c index 6e873f45c8..ca56702dcf 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 13f88067eb..b4f95aa832 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 34e031b1cd..4236e6ff50 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 6aa7dd33a8..5220970532 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 232366c63b..06b160c8b5 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 c38fbce7b7..8af56860fa 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 8aee796218..734d9d3532 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) -- cgit v1.2.3