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  • variant-emmc-nvme-boot
  • 2023-01-25
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  • variant-emmc-nvme-boot
  • 2020-06-01
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cmd_fsp.c

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    spi_flash_probe.c 11.16 KiB
    /*
     * SPI flash probing
     *
     * Copyright (C) 2008 Atmel Corporation
     * Copyright (C) 2010 Reinhard Meyer, EMK Elektronik
     * Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc.
     *
     * Licensed under the GPL-2 or later.
     */
    
    #include <common.h>
    #include <fdtdec.h>
    #include <malloc.h>
    #include <spi.h>
    #include <spi_flash.h>
    
    #include "spi_flash_internal.h"
    
    DECLARE_GLOBAL_DATA_PTR;
    
    /*
     * struct spi_flash_params - SPI/QSPI flash device params structure
     *
     * @name:		Device name ([MANUFLETTER][DEVTYPE][DENSITY][EXTRAINFO])
     * @jedec:		Device jedec ID (0x[1byte_manuf_id][2byte_dev_id])
     * @ext_jedec:		Device ext_jedec ID
     * @sector_size:	Sector size of this device
     * @nr_sectors:	No.of sectors on this device
     * @flags:		Importent param, for flash specific behaviour
     */
    struct spi_flash_params {
    	const char *name;
    	u32 jedec;
    	u16 ext_jedec;
    	u32 sector_size;
    	u32 nr_sectors;
    	u16 flags;
    };
    
    static const struct spi_flash_params spi_flash_params_table[] = {
    #ifdef CONFIG_SPI_FLASH_ATMEL		/* ATMEL */
    	{"AT45DB011D",	   0x1f2200, 0x0,	64 * 1024,     4,	     0},
    	{"AT45DB021D",	   0x1f2300, 0x0,	64 * 1024,     8,	     0},
    	{"AT45DB041D",	   0x1f2400, 0x0,	64 * 1024,     8,	     0},
    	{"AT45DB081D",	   0x1f2500, 0x0,	64 * 1024,    16,	     0},
    	{"AT45DB161D",	   0x1f2600, 0x0,	64 * 1024,    32,	     0},
    	{"AT45DB321D",	   0x1f2700, 0x0,	64 * 1024,    64,	     0},
    	{"AT45DB641D",	   0x1f2800, 0x0,	64 * 1024,   128,	     0},
    #endif
    #ifdef CONFIG_SPI_FLASH_EON		/* EON */
    	{"EN25Q32B",	   0x1c3016, 0x0,	64 * 1024,    64,	     0},
    	{"EN25Q128B",	   0x1c3018, 0x0,       64 * 1024,   256,	     0},
    #endif
    #ifdef CONFIG_SPI_FLASH_GIGADEVICE	/* GIGADEVICE */
    	{"GD25Q64B",	   0xc84017, 0x0,	64 * 1024,   128,	     0},
    	{"GD25LQ32",	   0xc86016, 0x0,	64 * 1024,    64,	     0},
    #endif
    #ifdef CONFIG_SPI_FLASH_MACRONIX	/* MACRONIX */
    	{"MX25L4005",	   0xc22013, 0x0,	64 * 1024,     8,	     0},
    	{"MX25L8005",	   0xc22014, 0x0,	64 * 1024,    16,	     0},
    	{"MX25L1605D",	   0xc22015, 0x0,	64 * 1024,    32,	     0},
    	{"MX25L3205D",	   0xc22016, 0x0,	64 * 1024,    64,	     0},
    	{"MX25L6405D",	   0xc22017, 0x0,	64 * 1024,   128,	     0},
    	{"MX25L12805",	   0xc22018, 0x0,	64 * 1024,   256,	     0},
    	{"MX25L12855E",	   0xc22618, 0x0,	64 * 1024,   256,	     0},
    #endif
    #ifdef CONFIG_SPI_FLASH_SPANSION	/* SPANSION */
    	{"S25FL008A",	   0x010213, 0x0,	64 * 1024,    16,	     0},
    	{"S25FL016A",	   0x010214, 0x0,	64 * 1024,    32,	     0},
    	{"S25FL032A",	   0x010215, 0x0,	64 * 1024,    64,	     0},
    	{"S25FL064A",	   0x010216, 0x0,	64 * 1024,   128,	     0},
    	{"S25FL128P_256K", 0x012018, 0x0300,   256 * 1024,    64,	     0},
    	{"S25FL128P_64K",  0x012018, 0x0301,    64 * 1024,   256,	     0},
    	{"S25FL032P",	   0x010215, 0x4d00,    64 * 1024,    64,	     0},
    	{"S25FL064P",	   0x010216, 0x4d00,    64 * 1024,   128,	     0},
    	{"S25FL128S_64K",  0x012018, 0x4d01,    64 * 1024,   256,	     0},
    	{"S25FL256S_64K",  0x010219, 0x4d01,    64 * 1024,   512,	     0},
    	{"S25FL512S_64K",  0x010220, 0x4d01,    64 * 1024,  1024,	     0},
    #endif
    #ifdef CONFIG_SPI_FLASH_STMICRO		/* STMICRO */
    	{"M25P10",	   0x202011, 0x0,       32 * 1024,     4,	     0},
    	{"M25P20",	   0x202012, 0x0,       64 * 1024,     4,	     0},
    	{"M25P40",	   0x202013, 0x0,       64 * 1024,     8,	     0},
    	{"M25P80",	   0x202014, 0x0,       64 * 1024,    16,	     0},
    	{"M25P16",	   0x202015, 0x0,       64 * 1024,    32,	     0},
    	{"M25P32",	   0x202016, 0x0,       64 * 1024,    64,	     0},
    	{"M25P64",	   0x202017, 0x0,       64 * 1024,   128,	     0},
    	{"M25P128",	   0x202018, 0x0,      256 * 1024,    64,	     0},
    	{"N25Q32",	   0x20ba16, 0x0,       64 * 1024,    64,	     0},
    	{"N25Q32A",	   0x20bb16, 0x0,       64 * 1024,    64,	     0},
    	{"N25Q64",	   0x20ba17, 0x0,       64 * 1024,   128,	     0},
    	{"N25Q64A",	   0x20bb17, 0x0,       64 * 1024,   128,	     0},
    	{"N25Q128",	   0x20ba18, 0x0,       64 * 1024,   256,	     0},
    	{"N25Q128A",	   0x20bb18, 0x0,       64 * 1024,   256,	     0},
    	{"N25Q256",	   0x20ba19, 0x0,       64 * 1024,   512,	     0},
    	{"N25Q256A",	   0x20bb19, 0x0,       64 * 1024,   512,	     0},
    	{"N25Q512",	   0x20ba20, 0x0,       64 * 1024,  1024,	     0},
    	{"N25Q512A",	   0x20bb20, 0x0,       64 * 1024,  1024,	     0},
    	{"N25Q1024",	   0x20ba21, 0x0,       64 * 1024,  2048,	     0},
    	{"N25Q1024A",	   0x20bb21, 0x0,       64 * 1024,  2048,	     0},
    #endif
    #ifdef CONFIG_SPI_FLASH_SST		/* SST */
    	{"SST25VF040B",	   0xbf258d, 0x0,	64 * 1024,     8,	SST_WP},
    	{"SST25VF080B",	   0xbf258e, 0x0,	64 * 1024,    16,	SST_WP},
    	{"SST25VF016B",	   0xbf2541, 0x0,	64 * 1024,    32,	SST_WP},
    	{"SST25VF032B",	   0xbf254a, 0x0,	64 * 1024,    64,	SST_WP},
    	{"SST25VF064C",	   0xbf254b, 0x0,	64 * 1024,   128,	     0},
    	{"SST25WF512",	   0xbf2501, 0x0,	64 * 1024,     1,	SST_WP},
    	{"SST25WF010",	   0xbf2502, 0x0,	64 * 1024,     2,	SST_WP},
    	{"SST25WF020",	   0xbf2503, 0x0,	64 * 1024,     4,	SST_WP},
    	{"SST25WF040",	   0xbf2504, 0x0,	64 * 1024,     8,	SST_WP},
    	{"SST25WF080",	   0xbf2505, 0x0,	64 * 1024,    16,	SST_WP},
    #endif
    #ifdef CONFIG_SPI_FLASH_WINBOND		/* WINBOND */
    	{"W25P80",	   0xef2014, 0x0,	64 * 1024,    16,	     0},
    	{"W25P16",	   0xef2015, 0x0,	64 * 1024,    32,	     0},
    	{"W25P32",	   0xef2016, 0x0,	64 * 1024,    64,	     0},
    	{"W25X40",	   0xef3013, 0x0,	64 * 1024,     8,	     0},
    	{"W25X16",	   0xef3015, 0x0,	64 * 1024,    32,	     0},
    	{"W25X32",	   0xef3016, 0x0,	64 * 1024,    64,	     0},
    	{"W25X64",	   0xef3017, 0x0,	64 * 1024,   128,	     0},
    	{"W25Q80BL",	   0xef4014, 0x0,	64 * 1024,    16,	     0},
    	{"W25Q16CL",	   0xef4015, 0x0,	64 * 1024,    32,	     0},
    	{"W25Q32BV",	   0xef4016, 0x0,	64 * 1024,    64,	     0},
    	{"W25Q64CV",	   0xef4017, 0x0,	64 * 1024,   128,	     0},
    	{"W25Q128BV",	   0xef4018, 0x0,	64 * 1024,   256,	     0},
    	{"W25Q256",	   0xef4019, 0x0,	64 * 1024,   512,	     0},
    	{"W25Q80BW",	   0xef5014, 0x0,	64 * 1024,    16,	     0},
    	{"W25Q16DW",	   0xef6015, 0x0,	64 * 1024,    32,	     0},
    	{"W25Q32DW",	   0xef6016, 0x0,	64 * 1024,    64,	     0},
    	{"W25Q64DW",	   0xef6017, 0x0,	64 * 1024,   128,	     0},
    	{"W25Q128FW",	   0xef6018, 0x0,	64 * 1024,   256,	     0},
    #endif
    	/*
    	 * Note:
    	 * Below paired flash devices has similar spi_flash_params params.
    	 * (S25FL129P_64K, S25FL128S_64K)
    	 * (W25Q80BL, W25Q80BV)
    	 * (W25Q16CL, W25Q16DV)
    	 * (W25Q32BV, W25Q32FV_SPI)
    	 * (W25Q64CV, W25Q64FV_SPI)
    	 * (W25Q128BV, W25Q128FV_SPI)
    	 * (W25Q32DW, W25Q32FV_QPI)
    	 * (W25Q64DW, W25Q64FV_QPI)
    	 * (W25Q128FW, W25Q128FV_QPI)
    	 */
    	/*
    	 * TODO:
    	 * RAMTRON
    	 */
    };
    
    struct spi_flash *spi_flash_validate_ids(struct spi_slave *spi, u8 *idcode)
    {
    	const struct spi_flash_params *params;
    	struct spi_flash *flash;
    	int i;
    	u16 jedec = idcode[1] << 8 | idcode[2];
    	u16 ext_jedec = idcode[3] << 8 | idcode[4];
    
    	/* Get the flash id (jedec = manuf_id + dev_id, ext_jedec) */
    	for (i = 0; i < ARRAY_SIZE(spi_flash_params_table); i++) {
    		params = &spi_flash_params_table[i];
    		if ((params->jedec >> 16) == idcode[0]) {
    			if ((params->jedec & 0xFFFF) == jedec) {
    				if (params->ext_jedec == 0)
    					break;
    				else if (params->ext_jedec == ext_jedec)
    					break;
    			}
    		}
    	}
    
    	if (i == ARRAY_SIZE(spi_flash_params_table)) {
    		printf("SF: Unsupported flash IDs: ");
    		printf("manuf %02x, jedec %04x, ext_jedec %04x\n",
    		       idcode[0], jedec, ext_jedec);
    		return NULL;
    	}
    
    	flash = malloc(sizeof(*flash));
    	if (!flash) {
    		debug("SF: Failed to allocate spi_flash\n");
    		return NULL;
    	}
    	memset(flash, '\0', sizeof(*flash));
    
    	flash->spi = spi;
    	flash->name = params->name;
    	flash->poll_cmd = CMD_READ_STATUS;
    
    	/* Assign spi_flash ops */
    	flash->write = spi_flash_cmd_write_multi;
    #ifdef CONFIG_SPI_FLASH_SST
    	if (params->flags & SST_WP)
    		flash->write = sst_write_wp;
    #endif
    	flash->erase = spi_flash_cmd_erase;
    	flash->read = spi_flash_cmd_read_fast;
    
    	/* Compute the flash size */
    	flash->page_size = 256;
    	flash->sector_size = params->sector_size;
    	flash->size = flash->sector_size * params->nr_sectors;
    
    	return flash;
    }
    
    #ifdef CONFIG_SPI_FLASH_BAR
    int spi_flash_bank_config(struct spi_flash *flash, u8 idcode0)
    {
    	u8 cmd;
    	u8 curr_bank = 0;
    
    	/* discover bank cmds */
    	switch (idcode0) {
    	case SPI_FLASH_SPANSION_IDCODE0:
    		flash->bank_read_cmd = CMD_BANKADDR_BRRD;
    		flash->bank_write_cmd = CMD_BANKADDR_BRWR;
    		break;
    	case SPI_FLASH_STMICRO_IDCODE0:
    	case SPI_FLASH_WINBOND_IDCODE0:
    		flash->bank_read_cmd = CMD_EXTNADDR_RDEAR;
    		flash->bank_write_cmd = CMD_EXTNADDR_WREAR;
    		break;
    	default:
    		printf("SF: Unsupported bank commands %02x\n", idcode0);
    		return -1;
    	}
    
    	/* read the bank reg - on which bank the flash is in currently */
    	cmd = flash->bank_read_cmd;
    	if (flash->size > SPI_FLASH_16MB_BOUN) {
    		if (spi_flash_read_common(flash, &cmd, 1, &curr_bank, 1)) {
    			debug("SF: fail to read bank addr register\n");
    			return -1;
    		}
    		flash->bank_curr = curr_bank;
    	} else {
    		flash->bank_curr = curr_bank;
    	}
    
    	return 0;
    }
    #endif
    
    #ifdef CONFIG_OF_CONTROL
    int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
    {
    	fdt_addr_t addr;
    	fdt_size_t size;
    	int node;
    
    	/* If there is no node, do nothing */
    	node = fdtdec_next_compatible(blob, 0, COMPAT_GENERIC_SPI_FLASH);
    	if (node < 0)
    		return 0;
    
    	addr = fdtdec_get_addr_size(blob, node, "memory-map", &size);
    	if (addr == FDT_ADDR_T_NONE) {
    		debug("%s: Cannot decode address\n", __func__);
    		return 0;
    	}
    
    	if (flash->size != size) {
    		debug("%s: Memory map must cover entire device\n", __func__);
    		return -1;
    	}
    	flash->memory_map = (void *)addr;
    
    	return 0;
    }
    #endif /* CONFIG_OF_CONTROL */
    
    struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
    		unsigned int max_hz, unsigned int spi_mode)
    {
    	struct spi_slave *spi;
    	struct spi_flash *flash = NULL;
    	u8 idcode[5], *idp;
    	int ret;
    
    	/* Setup spi_slave */
    	spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
    	if (!spi) {
    		printf("SF: Failed to set up slave\n");
    		return NULL;
    	}
    
    	/* Claim spi bus */
    	ret = spi_claim_bus(spi);
    	if (ret) {
    		debug("SF: Failed to claim SPI bus: %d\n", ret);
    		goto err_claim_bus;
    	}
    
    	/* Read the ID codes */
    	ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
    	if (ret) {
    		printf("SF: Failed to get idcodes\n");
    		goto err_read_id;
    	}
    
    #ifdef DEBUG
    	printf("SF: Got idcodes\n");
    	print_buffer(0, idcode, 1, sizeof(idcode), 0);
    #endif
    
    	/* Validate ID's from flash dev table */
    	idp = idcode;
    	flash = spi_flash_validate_ids(spi, idp);
    	if (!flash)
    		goto err_read_id;
    
    #ifdef CONFIG_SPI_FLASH_BAR
    	/* Configure the BAR - discover bank cmds and read current bank  */
    	ret = spi_flash_bank_config(flash, *idp);
    	if (ret < 0)
    		goto err_read_id;
    #endif
    
    #ifdef CONFIG_OF_CONTROL
    	if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
    		debug("SF: FDT decode error\n");
    		goto err_read_id;
    	}
    #endif
    #ifndef CONFIG_SPL_BUILD
    	printf("SF: Detected %s with page size ", flash->name);
    	print_size(flash->sector_size, ", total ");
    	print_size(flash->size, "");
    	if (flash->memory_map)
    		printf(", mapped at %p", flash->memory_map);
    	puts("\n");
    #endif
    #ifndef CONFIG_SPI_FLASH_BAR
    	if (flash->size > SPI_FLASH_16MB_BOUN) {
    		puts("SF: Warning - Only lower 16MiB accessible,");
    		puts(" Full access #define CONFIG_SPI_FLASH_BAR\n");
    	}
    #endif
    
    	/* Release spi bus */
    	spi_release_bus(spi);
    
    	return flash;
    
    err_read_id:
    	spi_release_bus(spi);
    err_claim_bus:
    	spi_free_slave(spi);
    	return NULL;
    }
    
    void spi_flash_free(struct spi_flash *flash)
    {
    	spi_free_slave(flash->spi);
    	free(flash);
    }