On Wed, Jan 23, 2013 at 7:30 PM, Rajeshwari Shinde <rajeshwar...@samsung.com> wrote: > This patch adds driver for the gigabyte devices > GD25LQ and GD25Q64B required for Snow Board. > > Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
Acked-by: Simon Glass <s...@chromium.org> > --- > Changes in V2: > - Added U-Boot copyright header to gigadevice.c > - Removed unnecessary blank lines. > drivers/mtd/spi/Makefile | 1 + > drivers/mtd/spi/gigadevice.c | 81 > ++++++++++++++++++++++++++++++++++ > drivers/mtd/spi/spi_flash.c | 3 + > drivers/mtd/spi/spi_flash_internal.h | 1 + > 4 files changed, 86 insertions(+), 0 deletions(-) > create mode 100644 drivers/mtd/spi/gigadevice.c > > diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile > index 90f8392..ecbb210 100644 > --- a/drivers/mtd/spi/Makefile > +++ b/drivers/mtd/spi/Makefile > @@ -32,6 +32,7 @@ endif > COBJS-$(CONFIG_SPI_FLASH) += spi_flash.o > COBJS-$(CONFIG_SPI_FLASH_ATMEL) += atmel.o > COBJS-$(CONFIG_SPI_FLASH_EON) += eon.o > +COBJS-$(CONFIG_SPI_FLASH_GIGADEVICE) += gigadevice.o > COBJS-$(CONFIG_SPI_FLASH_MACRONIX) += macronix.o > COBJS-$(CONFIG_SPI_FLASH_SPANSION) += spansion.o > COBJS-$(CONFIG_SPI_FLASH_SST) += sst.o > diff --git a/drivers/mtd/spi/gigadevice.c b/drivers/mtd/spi/gigadevice.c > new file mode 100644 > index 0000000..b5e1ebe > --- /dev/null > +++ b/drivers/mtd/spi/gigadevice.c > @@ -0,0 +1,81 @@ > +/* > + * Gigadevice SPI flash driver > + * Copyright 2013, Samsung Electronics Co., Ltd. > + * Author: Banajit Goswami <banaji...@samsung.com> > + * > + * See file CREDITS for list of people who contributed to this > + * project. > + * > + * 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, write to the Free Software > + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, > + * MA 02111-1307 USA > + */ > + > +#include <common.h> > +#include <malloc.h> > +#include <spi_flash.h> > + > +#include "spi_flash_internal.h" > + > +struct gigadevice_spi_flash_params { > + uint16_t id; > + uint16_t nr_blocks; > + const char *name; > +}; > + > +static const struct gigadevice_spi_flash_params gigadevice_spi_flash_table[] > = { > + { > + .id = 0x6016, > + .nr_blocks = 64, > + .name = "GD25LQ", > + }, > + { > + .id = 0x4017, > + .nr_blocks = 128, > + .name = "GD25Q64B", > + }, > +}; > + > +struct spi_flash *spi_flash_probe_gigadevice(struct spi_slave *spi, u8 > *idcode) > +{ > + const struct gigadevice_spi_flash_params *params; > + struct spi_flash *flash; > + unsigned int i; > + > + for (i = 0; i < ARRAY_SIZE(gigadevice_spi_flash_table); i++) { > + params = &gigadevice_spi_flash_table[i]; > + if (params->id == ((idcode[1] << 8) | idcode[2])) > + break; > + } > + > + if (i == ARRAY_SIZE(gigadevice_spi_flash_table)) { > + debug("SF: Unsupported Gigadevice ID %02x%02x\n", > + idcode[1], idcode[2]); > + return NULL; > + } > + > + flash = spi_flash_alloc_base(spi, params->name); > + if (!flash) { > + debug("SF: Failed to allocate memory\n"); > + return NULL; > + } > + /* page_size */ > + flash->page_size = 256; > + /* sector_size = page_size * pages_per_sector */ > + flash->sector_size = flash->page_size * 16; > + /* size = sector_size * sector_per_block * number of blocks */ > + flash->size = flash->sector_size * 16 * params->nr_blocks; > + > + return flash; > +} > diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c > index 17f3d3c..ee05171 100644 > --- a/drivers/mtd/spi/spi_flash.c > +++ b/drivers/mtd/spi/spi_flash.c > @@ -305,6 +305,9 @@ static const struct { > #ifdef CONFIG_SPI_FLASH_EON > { 0, 0x1c, spi_flash_probe_eon, }, > #endif > +#ifdef CONFIG_SPI_FLASH_GIGADEVICE > + { 0, 0xc8, spi_flash_probe_gigadevice, }, > +#endif > #ifdef CONFIG_SPI_FLASH_MACRONIX > { 0, 0xc2, spi_flash_probe_macronix, }, > #endif > diff --git a/drivers/mtd/spi/spi_flash_internal.h > b/drivers/mtd/spi/spi_flash_internal.h > index 141cfa8..e0afbc3 100644 > --- a/drivers/mtd/spi/spi_flash_internal.h > +++ b/drivers/mtd/spi/spi_flash_internal.h > @@ -106,3 +106,4 @@ struct spi_flash *spi_flash_probe_sst(struct spi_slave > *spi, u8 *idcode); > struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 *idcode); > struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode); > struct spi_flash *spi_fram_probe_ramtron(struct spi_slave *spi, u8 *idcode); > +struct spi_flash *spi_flash_probe_gigadevice(struct spi_slave *spi, u8 > *idcode); > -- > 1.7.4.4 > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot