Copy spl files from drivers/mtd/spi to spi-nor, more changes will added on future patches.
Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com Cc: Mugunthan V N mugunthanvnm@ti.com Cc: Michal Simek michal.simek@xilinx.com Cc: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Jagan Teki jteki@openedev.com --- drivers/mtd/spi-nor/Makefile | 5 +++ drivers/mtd/spi-nor/fsl_espi_spl.c | 90 ++++++++++++++++++++++++++++++++++++++ drivers/mtd/spi-nor/spi_spl_load.c | 90 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 185 insertions(+) create mode 100644 drivers/mtd/spi-nor/fsl_espi_spl.c create mode 100644 drivers/mtd/spi-nor/spi_spl_load.c
diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile index 2f41630..4a854fa 100644 --- a/drivers/mtd/spi-nor/Makefile +++ b/drivers/mtd/spi-nor/Makefile @@ -3,6 +3,11 @@ # # SPDX-License-Identifier: GPL-2.0+
+ifdef CONFIG_SPL_BUILD +obj-$(CONFIG_SPL_SPI_LOAD) += spi_spl_load.o +obj-$(CONFIG_SPL_SPI_BOOT) += fsl_espi_spl.o +endif + ifdef CONFIG_MTD_SPI_NOR obj-y += spi-nor.o obj-y += spi-nor-ids.o diff --git a/drivers/mtd/spi-nor/fsl_espi_spl.c b/drivers/mtd/spi-nor/fsl_espi_spl.c new file mode 100644 index 0000000..b915469 --- /dev/null +++ b/drivers/mtd/spi-nor/fsl_espi_spl.c @@ -0,0 +1,90 @@ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spi_flash.h> +#include <malloc.h> + +#define ESPI_BOOT_IMAGE_SIZE 0x48 +#define ESPI_BOOT_IMAGE_ADDR 0x50 +#define CONFIG_CFG_DATA_SECTOR 0 + +void spi_spl_load_image(uint32_t offs, unsigned int size, void *vdst) +{ + struct spi_flash *flash; + + flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, + CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); + if (flash == NULL) { + puts("\nspi_flash_probe failed"); + hang(); + } + + spi_flash_read(flash, offs, size, vdst); +} + +/* + * The main entry for SPI booting. It's necessary that SDRAM is already + * configured and available since this code loads the main U-Boot image + * from SPI into SDRAM and starts it from there. + */ +void spi_boot(void) +{ + void (*uboot)(void) __noreturn; + u32 offset, code_len, copy_len = 0; +#ifndef CONFIG_FSL_CORENET + unsigned char *buf = NULL; +#endif + struct spi_flash *flash; + + flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, + CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); + if (flash == NULL) { + puts("\nspi_flash_probe failed"); + hang(); + } + +#ifdef CONFIG_FSL_CORENET + offset = CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS; + code_len = CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE; +#else + /* + * Load U-Boot image from SPI flash into RAM + */ + buf = malloc(flash->page_size); + if (buf == NULL) { + puts("\nmalloc failed"); + hang(); + } + memset(buf, 0, flash->page_size); + + spi_flash_read(flash, CONFIG_CFG_DATA_SECTOR, + flash->page_size, (void *)buf); + offset = *(u32 *)(buf + ESPI_BOOT_IMAGE_ADDR); + /* Skip spl code */ + offset += CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS; + /* Get the code size from offset 0x48 */ + code_len = *(u32 *)(buf + ESPI_BOOT_IMAGE_SIZE); + /* Skip spl code */ + code_len = code_len - CONFIG_SPL_MAX_SIZE; +#endif + /* copy code to DDR */ + printf("Loading second stage boot loader "); + while (copy_len <= code_len) { + spi_flash_read(flash, offset + copy_len, 0x2000, + (void *)(CONFIG_SYS_SPI_FLASH_U_BOOT_DST + + copy_len)); + copy_len = copy_len + 0x2000; + putc('.'); + } + + /* + * Jump to U-Boot image + */ + flush_cache(CONFIG_SYS_SPI_FLASH_U_BOOT_DST, code_len); + uboot = (void *)CONFIG_SYS_SPI_FLASH_U_BOOT_START; + (*uboot)(); +} diff --git a/drivers/mtd/spi-nor/spi_spl_load.c b/drivers/mtd/spi-nor/spi_spl_load.c new file mode 100644 index 0000000..ca56fe9 --- /dev/null +++ b/drivers/mtd/spi-nor/spi_spl_load.c @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2011 OMICRON electronics GmbH + * + * based on drivers/mtd/nand/nand_spl_load.c + * + * Copyright (C) 2011 + * Heiko Schocher, DENX Software Engineering, hs@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spi.h> +#include <spi_flash.h> +#include <errno.h> +#include <spl.h> + +#ifdef CONFIG_SPL_OS_BOOT +/* + * Load the kernel, check for a valid header we can parse, and if found load + * the kernel and then device tree. + */ +static int spi_load_image_os(struct spi_flash *flash, + struct image_header *header) +{ + /* Read for a header, parse or error out. */ + spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS, 0x40, + (void *)header); + + if (image_get_magic(header) != IH_MAGIC) + return -1; + + spl_parse_image_header(header); + + spi_flash_read(flash, CONFIG_SYS_SPI_KERNEL_OFFS, + spl_image.size, (void *)spl_image.load_addr); + + /* Read device tree. */ + spi_flash_read(flash, CONFIG_SYS_SPI_ARGS_OFFS, + CONFIG_SYS_SPI_ARGS_SIZE, + (void *)CONFIG_SYS_SPL_ARGS_ADDR); + + return 0; +} +#endif + +/* + * The main entry for SPI booting. It's necessary that SDRAM is already + * configured and available since this code loads the main U-Boot image + * from SPI into SDRAM and starts it from there. + */ +int spl_spi_load_image(void) +{ + int err = 0; + struct spi_flash *flash; + struct image_header *header; + + /* + * Load U-Boot image from SPI flash into RAM + */ + + flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS, + CONFIG_SF_DEFAULT_CS, + CONFIG_SF_DEFAULT_SPEED, + CONFIG_SF_DEFAULT_MODE); + if (!flash) { + puts("SPI probe failed.\n"); + return -ENODEV; + } + + /* use CONFIG_SYS_TEXT_BASE as temporary storage area */ + header = (struct image_header *)(CONFIG_SYS_TEXT_BASE); + +#ifdef CONFIG_SPL_OS_BOOT + if (spl_start_uboot() || spi_load_image_os(flash, header)) +#endif + { + /* Load u-boot, mkimage header is 64 bytes. */ + err = spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40, + (void *)header); + if (err) + return err; + + spl_parse_image_header(header); + err = spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, + spl_image.size, (void *)spl_image.load_addr); + } + + return err; +}