mirror of
https://xff.cz/git/u-boot/
synced 2025-11-01 19:05:51 +01:00
- fix return code of sf command (Heinrich) - fix register reads in STIG Mode (Dhruva) - Infineon s25fs256t support (Takahiro)
This commit is contained in:
45
cmd/sf.c
45
cmd/sf.c
@@ -281,33 +281,33 @@ static int do_spi_flash_read_write(int argc, char *const argv[])
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loff_t offset, len, maxsize;
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if (argc < 3)
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return -1;
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return CMD_RET_USAGE;
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addr = hextoul(argv[1], &endp);
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if (*argv[1] == 0 || *endp != 0)
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return -1;
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return CMD_RET_USAGE;
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if (mtd_arg_off_size(argc - 2, &argv[2], &dev, &offset, &len,
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&maxsize, MTD_DEV_TYPE_NOR, flash->size))
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return -1;
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return CMD_RET_FAILURE;
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/* Consistency checking */
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if (offset + len > flash->size) {
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printf("ERROR: attempting %s past flash size (%#x)\n",
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argv[0], flash->size);
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return 1;
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return CMD_RET_FAILURE;
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}
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if (strncmp(argv[0], "read", 4) != 0 && flash->flash_is_unlocked &&
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!flash->flash_is_unlocked(flash, offset, len)) {
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printf("ERROR: flash area is locked\n");
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return 1;
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return CMD_RET_FAILURE;
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}
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buf = map_physmem(addr, len, MAP_WRBACK);
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if (!buf && addr) {
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puts("Failed to map physical memory\n");
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return 1;
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return CMD_RET_FAILURE;
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}
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if (strcmp(argv[0], "update") == 0) {
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@@ -332,7 +332,7 @@ static int do_spi_flash_read_write(int argc, char *const argv[])
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unmap_physmem(buf, len);
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return ret == 0 ? 0 : 1;
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return ret ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
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}
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static int do_spi_flash_erase(int argc, char *const argv[])
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@@ -343,27 +343,27 @@ static int do_spi_flash_erase(int argc, char *const argv[])
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ulong size;
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if (argc < 3)
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return -1;
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return CMD_RET_USAGE;
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if (mtd_arg_off(argv[1], &dev, &offset, &len, &maxsize,
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MTD_DEV_TYPE_NOR, flash->size))
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return -1;
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return CMD_RET_FAILURE;
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ret = sf_parse_len_arg(argv[2], &size);
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if (ret != 1)
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return -1;
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return CMD_RET_USAGE;
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/* Consistency checking */
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if (offset + size > flash->size) {
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printf("ERROR: attempting %s past flash size (%#x)\n",
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argv[0], flash->size);
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return 1;
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return CMD_RET_FAILURE;
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}
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if (flash->flash_is_unlocked &&
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!flash->flash_is_unlocked(flash, offset, len)) {
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printf("ERROR: flash area is locked\n");
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return 1;
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return CMD_RET_FAILURE;
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}
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ret = spi_flash_erase(flash, offset, size);
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@@ -373,7 +373,7 @@ static int do_spi_flash_erase(int argc, char *const argv[])
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else
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printf("OK\n");
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return ret == 0 ? 0 : 1;
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return ret ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
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}
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static int do_spi_protect(int argc, char *const argv[])
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@@ -579,21 +579,19 @@ static int do_spi_flash(struct cmd_tbl *cmdtp, int flag, int argc,
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/* need at least two arguments */
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if (argc < 2)
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goto usage;
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return CMD_RET_USAGE;
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cmd = argv[1];
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--argc;
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++argv;
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if (strcmp(cmd, "probe") == 0) {
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ret = do_spi_flash_probe(argc, argv);
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goto done;
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}
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if (strcmp(cmd, "probe") == 0)
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return do_spi_flash_probe(argc, argv);
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/* The remaining commands require a selected device */
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if (!flash) {
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puts("No SPI flash selected. Please run `sf probe'\n");
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return 1;
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return CMD_RET_FAILURE;
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}
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if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0 ||
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@@ -606,14 +604,9 @@ static int do_spi_flash(struct cmd_tbl *cmdtp, int flag, int argc,
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else if (IS_ENABLED(CONFIG_CMD_SF_TEST) && !strcmp(cmd, "test"))
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ret = do_spi_flash_test(argc, argv);
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else
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ret = -1;
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ret = CMD_RET_USAGE;
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done:
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if (ret != -1)
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return ret;
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usage:
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return CMD_RET_USAGE;
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return ret;
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}
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#ifdef CONFIG_SYS_LONGHELP
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@@ -3195,7 +3195,11 @@ static int spi_nor_setup(struct spi_nor *nor, const struct flash_info *info,
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}
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#ifdef CONFIG_SPI_FLASH_SPANSION
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static int s25hx_t_mdp_ready(struct spi_nor *nor)
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/* Use ID byte 4 to distinguish S25FS256T and S25Hx-T */
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#define S25FS256T_ID4 (0x08)
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static int s25_mdp_ready(struct spi_nor *nor)
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{
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u32 addr;
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int ret;
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@@ -3209,7 +3213,7 @@ static int s25hx_t_mdp_ready(struct spi_nor *nor)
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return 1;
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}
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static int s25hx_t_quad_enable(struct spi_nor *nor)
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static int s25_quad_enable(struct spi_nor *nor)
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{
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u32 addr;
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int ret;
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@@ -3223,51 +3227,67 @@ static int s25hx_t_quad_enable(struct spi_nor *nor)
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return 0;
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}
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static int s25hx_t_erase_non_uniform(struct spi_nor *nor, loff_t addr)
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static int s25_erase_non_uniform(struct spi_nor *nor, loff_t addr)
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{
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/* Support 32 x 4KB sectors at bottom */
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return spansion_erase_non_uniform(nor, addr, SPINOR_OP_BE_4K_4B, 0,
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SZ_128K);
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}
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static int s25hx_t_setup(struct spi_nor *nor, const struct flash_info *info,
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const struct spi_nor_flash_parameter *params)
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static int s25_setup(struct spi_nor *nor, const struct flash_info *info,
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const struct spi_nor_flash_parameter *params)
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{
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int ret;
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u8 cfr3v;
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u8 cr;
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#ifdef CONFIG_SPI_FLASH_BAR
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return -ENOTSUPP; /* Bank Address Register is not supported */
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#endif
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/*
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* S25FS256T has multiple sector architecture options, with selection of
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* count and location of 128KB and 64KB sectors. This driver supports
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* uniform 128KB only due to complexity of non-uniform layout.
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*/
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if (nor->info->id[4] == S25FS256T_ID4) {
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ret = spansion_read_any_reg(nor, SPINOR_REG_ADDR_ARCFN, 8, &cr);
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if (ret)
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return ret;
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if (cr) /* Option 0 (ARCFN[7:0] == 0x00) is uniform */
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return -EOPNOTSUPP;
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return spi_nor_default_setup(nor, info, params);
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}
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/*
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* Read CFR3V to check if uniform sector is selected. If not, assign an
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* erase hook that supports non-uniform erase.
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*/
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ret = spansion_read_any_reg(nor, SPINOR_REG_ADDR_CFR3V, 0, &cfr3v);
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ret = spansion_read_any_reg(nor, SPINOR_REG_ADDR_CFR3V, 0, &cr);
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if (ret)
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return ret;
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if (!(cfr3v & CFR3V_UNHYSA))
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nor->erase = s25hx_t_erase_non_uniform;
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if (!(cr & CFR3V_UNHYSA))
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nor->erase = s25_erase_non_uniform;
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/*
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* For the multi-die package parts, the ready() hook is needed to check
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* all dies' status via read any register.
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*/
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if (nor->mtd.size > SZ_128M)
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nor->ready = s25hx_t_mdp_ready;
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nor->ready = s25_mdp_ready;
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return spi_nor_default_setup(nor, info, params);
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}
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static void s25hx_t_default_init(struct spi_nor *nor)
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static void s25_default_init(struct spi_nor *nor)
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{
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nor->setup = s25hx_t_setup;
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nor->setup = s25_setup;
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}
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static int s25hx_t_post_bfpt_fixup(struct spi_nor *nor,
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const struct sfdp_parameter_header *header,
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const struct sfdp_bfpt *bfpt,
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struct spi_nor_flash_parameter *params)
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static int s25_post_bfpt_fixup(struct spi_nor *nor,
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const struct sfdp_parameter_header *header,
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const struct sfdp_bfpt *bfpt,
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struct spi_nor_flash_parameter *params)
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{
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int ret;
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u32 addr;
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@@ -3296,6 +3316,10 @@ static int s25hx_t_post_bfpt_fixup(struct spi_nor *nor,
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nor->addr_mode_nbytes = 4;
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}
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/* The default address mode in S25FS256T is 4. */
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if (nor->info->id[4] == S25FS256T_ID4)
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nor->addr_mode_nbytes = 4;
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/*
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* The page_size is set to 512B from BFPT, but it actually depends on
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* the configuration register. Look up the CFR3V and determine the
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@@ -3318,21 +3342,26 @@ static int s25hx_t_post_bfpt_fixup(struct spi_nor *nor,
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return 0;
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}
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static void s25hx_t_post_sfdp_fixup(struct spi_nor *nor,
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struct spi_nor_flash_parameter *params)
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static void s25_post_sfdp_fixup(struct spi_nor *nor,
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struct spi_nor_flash_parameter *params)
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{
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/* READ_FAST_4B (0Ch) requires mode cycles*/
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params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
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/* PP_1_1_4 is not supported */
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params->hwcaps.mask &= ~SNOR_HWCAPS_PP_1_1_4;
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/* Use volatile register to enable quad */
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params->quad_enable = s25hx_t_quad_enable;
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if (nor->info->id[4] == S25FS256T_ID4) {
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/* PP_1_1_4 is supported */
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params->hwcaps.mask |= SNOR_HWCAPS_PP_1_1_4;
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} else {
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/* READ_FAST_4B (0Ch) requires mode cycles*/
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params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
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/* PP_1_1_4 is not supported */
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params->hwcaps.mask &= ~SNOR_HWCAPS_PP_1_1_4;
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/* Use volatile register to enable quad */
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params->quad_enable = s25_quad_enable;
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}
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}
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static struct spi_nor_fixups s25hx_t_fixups = {
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.default_init = s25hx_t_default_init,
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.post_bfpt = s25hx_t_post_bfpt_fixup,
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.post_sfdp = s25hx_t_post_sfdp_fixup,
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static struct spi_nor_fixups s25_fixups = {
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.default_init = s25_default_init,
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.post_bfpt = s25_post_bfpt_fixup,
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.post_sfdp = s25_post_sfdp_fixup,
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};
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static int s25fl256l_setup(struct spi_nor *nor, const struct flash_info *info,
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@@ -3373,7 +3402,7 @@ static int spi_nor_cypress_octal_dtr_enable(struct spi_nor *nor)
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if (ret)
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return ret;
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buf = SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24;
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buf = SPINOR_REG_CYPRESS_CFR2_MEMLAT_11_24;
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op = (struct spi_mem_op)SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WR_ANY_REG, 1),
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SPI_MEM_OP_ADDR(addr_width, SPINOR_REG_CYPRESS_CFR2V, 1),
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SPI_MEM_OP_NO_DUMMY,
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@@ -3396,7 +3425,7 @@ static int spi_nor_cypress_octal_dtr_enable(struct spi_nor *nor)
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if (ret)
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return ret;
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buf = SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN;
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buf = SPINOR_REG_CYPRESS_CFR5_OCT_DTR_EN;
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op = (struct spi_mem_op)SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WR_ANY_REG, 1),
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SPI_MEM_OP_ADDR(addr_width, SPINOR_REG_CYPRESS_CFR5V, 1),
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SPI_MEM_OP_NO_DUMMY,
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@@ -3444,7 +3473,7 @@ static int s28hx_t_setup(struct spi_nor *nor, const struct flash_info *info,
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if (ret)
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return ret;
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if (!(buf & SPINOR_REG_CYPRESS_CFR3V_UNISECT))
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if (!(buf & SPINOR_REG_CYPRESS_CFR3_UNISECT))
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nor->erase = s28hx_t_erase_non_uniform;
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return spi_nor_default_setup(nor, info, params);
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@@ -3511,7 +3540,7 @@ static int s28hx_t_post_bfpt_fixup(struct spi_nor *nor,
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if (ret)
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return ret;
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if (buf & SPINOR_REG_CYPRESS_CFR3V_PGSZ)
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if (buf & SPINOR_REG_CYPRESS_CFR3_PGSZ)
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params->page_size = 512;
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else
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params->page_size = 256;
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@@ -3850,7 +3879,7 @@ void spi_nor_set_fixups(struct spi_nor *nor)
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switch (nor->info->id[1]) {
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case 0x2a: /* S25HL (QSPI, 3.3V) */
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case 0x2b: /* S25HS (QSPI, 1.8V) */
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nor->fixups = &s25hx_t_fixups;
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nor->fixups = &s25_fixups;
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break;
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#ifdef CONFIG_SPI_FLASH_S28HX_T
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@@ -294,6 +294,8 @@ const struct flash_info spi_nor_ids[] = {
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USE_CLSR) },
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{ INFO6("s25hs02gt", 0x342b1c, 0x0f0090, 256 * 1024, 1024,
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SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
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{ INFO6("s25fs256t", 0x342b19, 0x0f0890, 128 * 1024, 256,
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SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
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#ifdef CONFIG_SPI_FLASH_S28HX_T
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{ INFO("s28hl512t", 0x345a1a, 0, 256 * 1024, 256, SPI_NOR_OCTAL_DTR_READ) },
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{ INFO("s28hl01gt", 0x345a1b, 0, 256 * 1024, 512, SPI_NOR_OCTAL_DTR_READ) },
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@@ -461,6 +461,14 @@ config SOFT_SPI
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Enable Soft SPI driver. This driver is to use GPIO simulate
|
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the SPI protocol.
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config SPI_SN_F_OSPI
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tristate "Socionext F_OSPI SPI flash controller"
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depends on SPI_MEM
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help
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This enables support for the Socionext F_OSPI controller
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for connecting an SPI flash memory over up to 8-bit wide bus.
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It supports indirect access mode only.
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config SPI_SUNXI
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bool "Allwinner SoC SPI controllers"
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default ARCH_SUNXI
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@@ -67,6 +67,7 @@ obj-$(CONFIG_ROCKCHIP_SFC) += rockchip_sfc.o
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obj-$(CONFIG_ROCKCHIP_SPI) += rk_spi.o
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obj-$(CONFIG_SANDBOX_SPI) += sandbox_spi.o
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obj-$(CONFIG_SPI_SIFIVE) += spi-sifive.o
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obj-$(CONFIG_SPI_SN_F_OSPI) += spi-sn-f-ospi.o
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obj-$(CONFIG_SPI_SUNXI) += spi-sunxi.o
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obj-$(CONFIG_SH_QSPI) += sh_qspi.o
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obj-$(CONFIG_STM32_QSPI) += stm32_qspi.o
|
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|
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@@ -210,7 +210,7 @@ static void bcm63xx_hsspi_deactivate_cs(struct bcm63xx_hsspi_priv *priv)
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* claimed. This way, the dummy CS is restored to its inactive value when
|
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* transfers are issued and the desired CS is preserved in its active value
|
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* all the time. This hack is also used in the upstream linux driver and
|
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* allows keeping CS active between trasnfers even if the HW doesn't give
|
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* allows keeping CS active between transfers even if the HW doesn't give
|
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* this possibility.
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*/
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static int bcm63xx_hsspi_xfer(struct udevice *dev, unsigned int bitlen,
|
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@@ -307,7 +307,13 @@ static int cadence_spi_mem_exec_op(struct spi_slave *spi,
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priv->is_decoded_cs);
|
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|
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if (op->data.dir == SPI_MEM_DATA_IN && op->data.buf.in) {
|
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if (!op->addr.nbytes)
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/*
|
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* Performing reads in DAC mode forces to read minimum 4 bytes
|
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* which is unsupported on some flash devices during register
|
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* reads, prefer STIG mode for such small reads.
|
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*/
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if (!op->addr.nbytes ||
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op->data.nbytes <= CQSPI_STIG_DATA_LEN_MAX)
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mode = CQSPI_STIG_READ;
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else
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mode = CQSPI_READ;
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@@ -392,7 +398,7 @@ static int cadence_spi_of_to_plat(struct udevice *bus)
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plat->is_dma = dev_read_bool(bus, "cdns,is-dma");
|
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|
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/* All other paramters are embedded in the child node */
|
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/* All other parameters are embedded in the child node */
|
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subnode = dev_read_first_subnode(bus);
|
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if (!ofnode_valid(subnode)) {
|
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printf("Error: subnode with SPI flash config missing!\n");
|
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|
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@@ -479,6 +479,19 @@ int cadence_qspi_apb_command_read(struct cadence_spi_priv *priv,
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/* 0 means 1 byte. */
|
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reg |= (((rxlen - 1) & CQSPI_REG_CMDCTRL_RD_BYTES_MASK)
|
||||
<< CQSPI_REG_CMDCTRL_RD_BYTES_LSB);
|
||||
|
||||
/* setup ADDR BIT field */
|
||||
if (op->addr.nbytes) {
|
||||
writel(op->addr.val, priv->regbase + CQSPI_REG_CMDADDRESS);
|
||||
/*
|
||||
* address bytes are zero indexed
|
||||
*/
|
||||
reg |= (((op->addr.nbytes - 1) &
|
||||
CQSPI_REG_CMDCTRL_ADD_BYTES_MASK) <<
|
||||
CQSPI_REG_CMDCTRL_ADD_BYTES_LSB);
|
||||
reg |= (0x1 << CQSPI_REG_CMDCTRL_ADDR_EN_LSB);
|
||||
}
|
||||
|
||||
status = cadence_qspi_apb_exec_flash_cmd(reg_base, reg);
|
||||
if (status != 0)
|
||||
return status;
|
||||
|
||||
@@ -491,7 +491,7 @@ static int fsl_dspi_probe(struct udevice *bus)
|
||||
|
||||
dm_spi_bus = dev_get_uclass_priv(bus);
|
||||
|
||||
/* cpu speical pin muxing configure */
|
||||
/* cpu special pin muxing configure */
|
||||
cpu_dspi_port_conf();
|
||||
|
||||
/* get input clk frequency */
|
||||
@@ -600,7 +600,7 @@ static int fsl_dspi_of_to_plat(struct udevice *bus)
|
||||
plat->speed_hz = fdtdec_get_int(blob,
|
||||
node, "spi-max-frequency", FSL_DSPI_DEFAULT_SCK_FREQ);
|
||||
|
||||
debug("DSPI: regs=%pa, max-frequency=%d, endianess=%s, num-cs=%d\n",
|
||||
debug("DSPI: regs=%pa, max-frequency=%d, endianness=%s, num-cs=%d\n",
|
||||
&plat->regs_addr, plat->speed_hz,
|
||||
plat->flags & DSPI_FLAG_REGMAP_ENDIAN_BIG ? "be" : "le",
|
||||
plat->num_chipselect);
|
||||
|
||||
@@ -153,7 +153,7 @@ static void mtk_snfi_copy_to_gpram(struct mtk_snfi_priv *priv,
|
||||
|
||||
/*
|
||||
* The output data will always be copied to the beginning of
|
||||
* the GPRAM. Uses word write for better performace.
|
||||
* the GPRAM. Uses word write for better performance.
|
||||
*
|
||||
* Trailing bytes in the last word are not cared.
|
||||
*/
|
||||
@@ -180,7 +180,7 @@ static void mtk_snfi_copy_from_gpram(struct mtk_snfi_priv *priv, u8 *cache,
|
||||
|
||||
/*
|
||||
* Read aligned data from GPRAM to buffer first.
|
||||
* Uses word read for better performace.
|
||||
* Uses word read for better performance.
|
||||
*/
|
||||
i = 0;
|
||||
while (pos < end) {
|
||||
|
||||
@@ -84,7 +84,7 @@ static void spi_cs_deactivate(struct mvebu_spi_plat *plat, int cs)
|
||||
* The XFER_RDY flag is checked every time before accessing SPI_DOUT
|
||||
* and SPI_DIN register.
|
||||
*
|
||||
* The number of transfers to be triggerred is decided by @bytelen.
|
||||
* The number of transfers to be triggered is decided by @bytelen.
|
||||
*
|
||||
* Return: 0 - cool
|
||||
* -ETIMEDOUT - XFER_RDY flag timeout
|
||||
|
||||
@@ -142,7 +142,7 @@ static int omap3_spi_read(struct omap3_spi_priv *priv, unsigned int len,
|
||||
}
|
||||
}
|
||||
|
||||
/* Disable the channel to prevent furher receiving */
|
||||
/* Disable the channel to prevent further receiving */
|
||||
if (i == (len - 1))
|
||||
omap3_spi_set_enable(priv, OMAP3_MCSPI_CHCTRL_DIS);
|
||||
|
||||
|
||||
@@ -485,7 +485,7 @@ static int rockchip_spi_xfer(struct udevice *dev, unsigned int bitlen,
|
||||
/*
|
||||
* In case that there's a transmit-component, we need to wait
|
||||
* until the control goes idle before we can disable the SPI
|
||||
* control logic (as this will implictly flush the FIFOs).
|
||||
* control logic (as this will implicitly flush the FIFOs).
|
||||
*/
|
||||
if (out) {
|
||||
ret = rkspi_wait_till_not_busy(regs);
|
||||
|
||||
@@ -6,6 +6,8 @@
|
||||
* Copyright (C) 2013 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
|
||||
*/
|
||||
|
||||
#define LOG_CATEGORY UCLASS_SPI
|
||||
|
||||
#include <common.h>
|
||||
#include <console.h>
|
||||
#include <malloc.h>
|
||||
@@ -160,7 +162,7 @@ static int sh_qspi_xfer_common(struct sh_qspi_slave *ss, unsigned int bitlen,
|
||||
}
|
||||
|
||||
if (bitlen % 8) {
|
||||
printf("%s: bitlen is not 8bit alined %d", __func__, bitlen);
|
||||
log_warning("bitlen is not 8bit aligned %d", bitlen);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
@@ -270,7 +270,7 @@ static int ast2500_adjust_decoded_size(struct udevice *bus)
|
||||
flashes[cs].ahb_decoded_sz = priv->info->min_decoded_sz;
|
||||
|
||||
/*
|
||||
* If commnad mode or normal mode is used, the start address of a
|
||||
* If command mode or normal mode is used, the start address of a
|
||||
* decoded range should be multiple of its related flash size.
|
||||
* Namely, the total decoded size from flash 0 to flash N should
|
||||
* be multiple of the size of flash (N + 1).
|
||||
@@ -404,7 +404,7 @@ static int ast2600_adjust_decoded_size(struct udevice *bus)
|
||||
flashes[cs].ahb_decoded_sz = 0;
|
||||
|
||||
/*
|
||||
* If commnad mode or normal mode is used, the start address of a
|
||||
* If command mode or normal mode is used, the start address of a
|
||||
* decoded range should be multiple of its related flash size.
|
||||
* Namely, the total decoded size from flash 0 to flash N should
|
||||
* be multiple of the size of flash (N + 1).
|
||||
|
||||
@@ -233,7 +233,7 @@ static unsigned char qup_spi_read_byte(struct udevice *dev)
|
||||
}
|
||||
|
||||
/*
|
||||
* Function to check wheather Input or Output FIFO
|
||||
* Function to check whether Input or Output FIFO
|
||||
* has data to be serviced
|
||||
*/
|
||||
static int qup_spi_check_fifo_status(struct udevice *dev, u32 reg_addr)
|
||||
|
||||
@@ -350,7 +350,7 @@ static int sifive_spi_set_speed(struct udevice *bus, uint speed)
|
||||
if (speed > spi->freq)
|
||||
speed = spi->freq;
|
||||
|
||||
/* Cofigure max speed */
|
||||
/* Configure max speed */
|
||||
scale = (DIV_ROUND_UP(spi->freq >> 1, speed) - 1)
|
||||
& SIFIVE_SPI_SCKDIV_DIV_MASK;
|
||||
writel(scale, spi->regs + SIFIVE_SPI_REG_SCKDIV);
|
||||
|
||||
686
drivers/spi/spi-sn-f-ospi.c
Normal file
686
drivers/spi/spi-sn-f-ospi.c
Normal file
@@ -0,0 +1,686 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-only
|
||||
/*
|
||||
* Socionext SPI flash controller F_OSPI driver
|
||||
* Copyright (C) 2021 Socionext Inc.
|
||||
*/
|
||||
|
||||
#include <clk.h>
|
||||
#include <common.h>
|
||||
#include <dm.h>
|
||||
#include <dm/device_compat.h>
|
||||
#include <linux/bitfield.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/iopoll.h>
|
||||
#include <spi.h>
|
||||
#include <spi-mem.h>
|
||||
|
||||
/* Registers */
|
||||
#define OSPI_PROT_CTL_INDIR 0x00
|
||||
#define OSPI_PROT_MODE_DATA_MASK GENMASK(31, 30)
|
||||
#define OSPI_PROT_MODE_ALT_MASK GENMASK(29, 28)
|
||||
#define OSPI_PROT_MODE_ADDR_MASK GENMASK(27, 26)
|
||||
#define OSPI_PROT_MODE_CODE_MASK GENMASK(25, 24)
|
||||
#define OSPI_PROT_MODE_SINGLE 0
|
||||
#define OSPI_PROT_MODE_DUAL 1
|
||||
#define OSPI_PROT_MODE_QUAD 2
|
||||
#define OSPI_PROT_MODE_OCTAL 3
|
||||
#define OSPI_PROT_DATA_RATE_DATA BIT(23)
|
||||
#define OSPI_PROT_DATA_RATE_ALT BIT(22)
|
||||
#define OSPI_PROT_DATA_RATE_ADDR BIT(21)
|
||||
#define OSPI_PROT_DATA_RATE_CODE BIT(20)
|
||||
#define OSPI_PROT_SDR 0
|
||||
#define OSPI_PROT_DDR 1
|
||||
#define OSPI_PROT_BIT_POS_DATA BIT(19)
|
||||
#define OSPI_PROT_BIT_POS_ALT BIT(18)
|
||||
#define OSPI_PROT_BIT_POS_ADDR BIT(17)
|
||||
#define OSPI_PROT_BIT_POS_CODE BIT(16)
|
||||
#define OSPI_PROT_SAMP_EDGE BIT(12)
|
||||
#define OSPI_PROT_DATA_UNIT_MASK GENMASK(11, 10)
|
||||
#define OSPI_PROT_DATA_UNIT_1B 0
|
||||
#define OSPI_PROT_DATA_UNIT_2B 1
|
||||
#define OSPI_PROT_DATA_UNIT_4B 3
|
||||
#define OSPI_PROT_TRANS_DIR_WRITE BIT(9)
|
||||
#define OSPI_PROT_DATA_EN BIT(8)
|
||||
#define OSPI_PROT_ALT_SIZE_MASK GENMASK(7, 5)
|
||||
#define OSPI_PROT_ADDR_SIZE_MASK GENMASK(4, 2)
|
||||
#define OSPI_PROT_CODE_SIZE_MASK GENMASK(1, 0)
|
||||
|
||||
#define OSPI_CLK_CTL 0x10
|
||||
#define OSPI_CLK_CTL_BOOT_INT_CLK_EN BIT(16)
|
||||
#define OSPI_CLK_CTL_PHA BIT(12)
|
||||
#define OSPI_CLK_CTL_PHA_180 0
|
||||
#define OSPI_CLK_CTL_PHA_90 1
|
||||
#define OSPI_CLK_CTL_DIV GENMASK(9, 8)
|
||||
#define OSPI_CLK_CTL_DIV_1 0
|
||||
#define OSPI_CLK_CTL_DIV_2 1
|
||||
#define OSPI_CLK_CTL_DIV_4 2
|
||||
#define OSPI_CLK_CTL_DIV_8 3
|
||||
#define OSPI_CLK_CTL_INT_CLK_EN BIT(0)
|
||||
|
||||
#define OSPI_CS_CTL1 0x14
|
||||
#define OSPI_CS_CTL2 0x18
|
||||
#define OSPI_SSEL 0x20
|
||||
#define OSPI_CMD_IDX_INDIR 0x40
|
||||
#define OSPI_ADDR 0x50
|
||||
#define OSPI_ALT_INDIR 0x60
|
||||
#define OSPI_DMY_INDIR 0x70
|
||||
#define OSPI_DAT 0x80
|
||||
#define OSPI_DAT_SWP_INDIR 0x90
|
||||
|
||||
#define OSPI_DAT_SIZE_INDIR 0xA0
|
||||
#define OSPI_DAT_SIZE_EN BIT(15)
|
||||
#define OSPI_DAT_SIZE_MASK GENMASK(10, 0)
|
||||
#define OSPI_DAT_SIZE_MAX (OSPI_DAT_SIZE_MASK + 1)
|
||||
|
||||
#define OSPI_TRANS_CTL 0xC0
|
||||
#define OSPI_TRANS_CTL_STOP_REQ BIT(1) /* RW1AC */
|
||||
#define OSPI_TRANS_CTL_START_REQ BIT(0) /* RW1AC */
|
||||
|
||||
#define OSPI_ACC_MODE 0xC4
|
||||
#define OSPI_ACC_MODE_BOOT_DISABLE BIT(0)
|
||||
|
||||
#define OSPI_SWRST 0xD0
|
||||
#define OSPI_SWRST_INDIR_WRITE_FIFO BIT(9) /* RW1AC */
|
||||
#define OSPI_SWRST_INDIR_READ_FIFO BIT(8) /* RW1AC */
|
||||
|
||||
#define OSPI_STAT 0xE0
|
||||
#define OSPI_STAT_IS_AXI_WRITING BIT(10)
|
||||
#define OSPI_STAT_IS_AXI_READING BIT(9)
|
||||
#define OSPI_STAT_IS_SPI_INT_CLK_STOP BIT(4)
|
||||
#define OSPI_STAT_IS_SPI_IDLE BIT(3)
|
||||
|
||||
#define OSPI_IRQ 0xF0
|
||||
#define OSPI_IRQ_CS_DEASSERT BIT(8)
|
||||
#define OSPI_IRQ_WRITE_BUF_READY BIT(2)
|
||||
#define OSPI_IRQ_READ_BUF_READY BIT(1)
|
||||
#define OSPI_IRQ_CS_TRANS_COMP BIT(0)
|
||||
#define OSPI_IRQ_ALL \
|
||||
(OSPI_IRQ_CS_DEASSERT | OSPI_IRQ_WRITE_BUF_READY \
|
||||
| OSPI_IRQ_READ_BUF_READY | OSPI_IRQ_CS_TRANS_COMP)
|
||||
|
||||
#define OSPI_IRQ_STAT_EN 0xF4
|
||||
#define OSPI_IRQ_SIG_EN 0xF8
|
||||
|
||||
/* Parameters */
|
||||
#define OSPI_NUM_CS 4
|
||||
#define OSPI_DUMMY_CYCLE_MAX 255
|
||||
#define OSPI_WAIT_MAX_MSEC 100
|
||||
|
||||
struct f_ospi {
|
||||
void __iomem *base;
|
||||
struct udevice *dev;
|
||||
struct clk clk;
|
||||
|
||||
u32 mode;
|
||||
u32 max_speed_hz;
|
||||
u32 num_cs;
|
||||
u32 chip_select;
|
||||
};
|
||||
|
||||
static u32 f_ospi_get_dummy_cycle(const struct spi_mem_op *op)
|
||||
{
|
||||
return (op->dummy.nbytes * 8) / op->dummy.buswidth;
|
||||
}
|
||||
|
||||
static void f_ospi_clear_irq(struct f_ospi *ospi)
|
||||
{
|
||||
writel(OSPI_IRQ_CS_DEASSERT | OSPI_IRQ_CS_TRANS_COMP,
|
||||
ospi->base + OSPI_IRQ);
|
||||
}
|
||||
|
||||
static void f_ospi_enable_irq_status(struct f_ospi *ospi, u32 irq_bits)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
val = readl(ospi->base + OSPI_IRQ_STAT_EN);
|
||||
val |= irq_bits;
|
||||
writel(val, ospi->base + OSPI_IRQ_STAT_EN);
|
||||
}
|
||||
|
||||
static void f_ospi_disable_irq_status(struct f_ospi *ospi, u32 irq_bits)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
val = readl(ospi->base + OSPI_IRQ_STAT_EN);
|
||||
val &= ~irq_bits;
|
||||
writel(val, ospi->base + OSPI_IRQ_STAT_EN);
|
||||
}
|
||||
|
||||
static void f_ospi_disable_irq_output(struct f_ospi *ospi, u32 irq_bits)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
val = readl(ospi->base + OSPI_IRQ_SIG_EN);
|
||||
val &= ~irq_bits;
|
||||
writel(val, ospi->base + OSPI_IRQ_SIG_EN);
|
||||
}
|
||||
|
||||
static int f_ospi_prepare_config(struct f_ospi *ospi)
|
||||
{
|
||||
u32 val, stat0, stat1;
|
||||
|
||||
/* G4: Disable internal clock */
|
||||
val = readl(ospi->base + OSPI_CLK_CTL);
|
||||
val &= ~(OSPI_CLK_CTL_BOOT_INT_CLK_EN | OSPI_CLK_CTL_INT_CLK_EN);
|
||||
writel(val, ospi->base + OSPI_CLK_CTL);
|
||||
|
||||
/* G5: Wait for stop */
|
||||
stat0 = OSPI_STAT_IS_AXI_WRITING | OSPI_STAT_IS_AXI_READING;
|
||||
stat1 = OSPI_STAT_IS_SPI_IDLE | OSPI_STAT_IS_SPI_INT_CLK_STOP;
|
||||
|
||||
return readl_poll_timeout(ospi->base + OSPI_STAT,
|
||||
val, (val & (stat0 | stat1)) == stat1,
|
||||
OSPI_WAIT_MAX_MSEC);
|
||||
}
|
||||
|
||||
static int f_ospi_unprepare_config(struct f_ospi *ospi)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
/* G11: Enable internal clock */
|
||||
val = readl(ospi->base + OSPI_CLK_CTL);
|
||||
val |= OSPI_CLK_CTL_BOOT_INT_CLK_EN | OSPI_CLK_CTL_INT_CLK_EN;
|
||||
writel(val, ospi->base + OSPI_CLK_CTL);
|
||||
|
||||
/* G12: Wait for clock to start */
|
||||
return readl_poll_timeout(ospi->base + OSPI_STAT,
|
||||
val, !(val & OSPI_STAT_IS_SPI_INT_CLK_STOP),
|
||||
OSPI_WAIT_MAX_MSEC);
|
||||
}
|
||||
|
||||
static void f_ospi_config_clk(struct f_ospi *ospi, u32 device_hz)
|
||||
{
|
||||
long rate_hz = clk_get_rate(&ospi->clk);
|
||||
u32 div = DIV_ROUND_UP(rate_hz, device_hz);
|
||||
u32 div_reg;
|
||||
u32 val;
|
||||
|
||||
if (rate_hz < device_hz) {
|
||||
dev_warn(ospi->dev, "Device frequency too large: %d\n",
|
||||
device_hz);
|
||||
div_reg = OSPI_CLK_CTL_DIV_1;
|
||||
} else {
|
||||
if (div == 1) {
|
||||
div_reg = OSPI_CLK_CTL_DIV_1;
|
||||
} else if (div == 2) {
|
||||
div_reg = OSPI_CLK_CTL_DIV_2;
|
||||
} else if (div <= 4) {
|
||||
div_reg = OSPI_CLK_CTL_DIV_4;
|
||||
} else if (div <= 8) {
|
||||
div_reg = OSPI_CLK_CTL_DIV_8;
|
||||
} else {
|
||||
dev_warn(ospi->dev, "Device frequency too small: %d\n",
|
||||
device_hz);
|
||||
div_reg = OSPI_CLK_CTL_DIV_8;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* G7: Set clock mode
|
||||
* clock phase is fixed at 180 degrees and configure edge direction
|
||||
* instead.
|
||||
*/
|
||||
val = readl(ospi->base + OSPI_CLK_CTL);
|
||||
|
||||
val &= ~(OSPI_CLK_CTL_PHA | OSPI_CLK_CTL_DIV);
|
||||
val |= FIELD_PREP(OSPI_CLK_CTL_PHA, OSPI_CLK_CTL_PHA_180)
|
||||
| FIELD_PREP(OSPI_CLK_CTL_DIV, div_reg);
|
||||
|
||||
writel(val, ospi->base + OSPI_CLK_CTL);
|
||||
}
|
||||
|
||||
static void f_ospi_config_dll(struct f_ospi *ospi)
|
||||
{
|
||||
/* G8: Configure DLL, nothing */
|
||||
}
|
||||
|
||||
static u8 f_ospi_get_mode(struct f_ospi *ospi, int width, int data_size)
|
||||
{
|
||||
u8 mode = OSPI_PROT_MODE_SINGLE;
|
||||
|
||||
switch (width) {
|
||||
case 1:
|
||||
mode = OSPI_PROT_MODE_SINGLE;
|
||||
break;
|
||||
case 2:
|
||||
mode = OSPI_PROT_MODE_DUAL;
|
||||
break;
|
||||
case 4:
|
||||
mode = OSPI_PROT_MODE_QUAD;
|
||||
break;
|
||||
case 8:
|
||||
mode = OSPI_PROT_MODE_OCTAL;
|
||||
break;
|
||||
default:
|
||||
if (data_size)
|
||||
dev_err(ospi->dev, "Invalid buswidth: %d\n", width);
|
||||
break;
|
||||
}
|
||||
|
||||
return mode;
|
||||
}
|
||||
|
||||
static void f_ospi_config_indir_protocol(struct f_ospi *ospi,
|
||||
const struct spi_mem_op *op)
|
||||
{
|
||||
u8 mode;
|
||||
u32 prot = 0, val;
|
||||
int unit;
|
||||
|
||||
/* Set one chip select */
|
||||
writel(BIT(ospi->chip_select), ospi->base + OSPI_SSEL);
|
||||
|
||||
mode = f_ospi_get_mode(ospi, op->cmd.buswidth, 1);
|
||||
prot |= FIELD_PREP(OSPI_PROT_MODE_CODE_MASK, mode);
|
||||
|
||||
mode = f_ospi_get_mode(ospi, op->addr.buswidth, op->addr.nbytes);
|
||||
prot |= FIELD_PREP(OSPI_PROT_MODE_ADDR_MASK, mode);
|
||||
|
||||
mode = f_ospi_get_mode(ospi, op->data.buswidth, op->data.nbytes);
|
||||
prot |= FIELD_PREP(OSPI_PROT_MODE_DATA_MASK, mode);
|
||||
|
||||
prot |= FIELD_PREP(OSPI_PROT_DATA_RATE_DATA, OSPI_PROT_SDR);
|
||||
prot |= FIELD_PREP(OSPI_PROT_DATA_RATE_ALT, OSPI_PROT_SDR);
|
||||
prot |= FIELD_PREP(OSPI_PROT_DATA_RATE_ADDR, OSPI_PROT_SDR);
|
||||
prot |= FIELD_PREP(OSPI_PROT_DATA_RATE_CODE, OSPI_PROT_SDR);
|
||||
|
||||
if (ospi->mode & SPI_LSB_FIRST)
|
||||
prot |= OSPI_PROT_BIT_POS_DATA | OSPI_PROT_BIT_POS_ALT
|
||||
| OSPI_PROT_BIT_POS_ADDR | OSPI_PROT_BIT_POS_CODE;
|
||||
|
||||
if (ospi->mode & SPI_CPHA)
|
||||
prot |= OSPI_PROT_SAMP_EDGE;
|
||||
|
||||
/* Examine nbytes % 4 */
|
||||
switch (op->data.nbytes & 0x3) {
|
||||
case 0:
|
||||
unit = OSPI_PROT_DATA_UNIT_4B;
|
||||
val = 0;
|
||||
break;
|
||||
case 2:
|
||||
unit = OSPI_PROT_DATA_UNIT_2B;
|
||||
val = OSPI_DAT_SIZE_EN | (op->data.nbytes - 1);
|
||||
break;
|
||||
default:
|
||||
unit = OSPI_PROT_DATA_UNIT_1B;
|
||||
val = OSPI_DAT_SIZE_EN | (op->data.nbytes - 1);
|
||||
break;
|
||||
}
|
||||
prot |= FIELD_PREP(OSPI_PROT_DATA_UNIT_MASK, unit);
|
||||
|
||||
switch (op->data.dir) {
|
||||
case SPI_MEM_DATA_IN:
|
||||
prot |= OSPI_PROT_DATA_EN;
|
||||
break;
|
||||
|
||||
case SPI_MEM_DATA_OUT:
|
||||
prot |= OSPI_PROT_TRANS_DIR_WRITE | OSPI_PROT_DATA_EN;
|
||||
break;
|
||||
|
||||
case SPI_MEM_NO_DATA:
|
||||
prot |= OSPI_PROT_TRANS_DIR_WRITE;
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_warn(ospi->dev, "Unsupported direction");
|
||||
break;
|
||||
}
|
||||
|
||||
prot |= FIELD_PREP(OSPI_PROT_ADDR_SIZE_MASK, op->addr.nbytes);
|
||||
prot |= FIELD_PREP(OSPI_PROT_CODE_SIZE_MASK, 1); /* 1byte */
|
||||
|
||||
writel(prot, ospi->base + OSPI_PROT_CTL_INDIR);
|
||||
writel(val, ospi->base + OSPI_DAT_SIZE_INDIR);
|
||||
}
|
||||
|
||||
static int f_ospi_indir_prepare_op(struct f_ospi *ospi,
|
||||
const struct spi_mem_op *op)
|
||||
{
|
||||
u32 irq_stat_en;
|
||||
int ret;
|
||||
|
||||
ret = f_ospi_prepare_config(ospi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
f_ospi_config_clk(ospi, ospi->max_speed_hz);
|
||||
|
||||
f_ospi_config_indir_protocol(ospi, op);
|
||||
|
||||
writel(f_ospi_get_dummy_cycle(op), ospi->base + OSPI_DMY_INDIR);
|
||||
writel(op->addr.val, ospi->base + OSPI_ADDR);
|
||||
writel(op->cmd.opcode, ospi->base + OSPI_CMD_IDX_INDIR);
|
||||
|
||||
f_ospi_clear_irq(ospi);
|
||||
|
||||
switch (op->data.dir) {
|
||||
case SPI_MEM_DATA_IN:
|
||||
irq_stat_en = OSPI_IRQ_READ_BUF_READY | OSPI_IRQ_CS_TRANS_COMP;
|
||||
break;
|
||||
|
||||
case SPI_MEM_DATA_OUT:
|
||||
irq_stat_en = OSPI_IRQ_WRITE_BUF_READY | OSPI_IRQ_CS_TRANS_COMP;
|
||||
break;
|
||||
|
||||
case SPI_MEM_NO_DATA:
|
||||
irq_stat_en = OSPI_IRQ_CS_TRANS_COMP;
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_warn(ospi->dev, "Unsupported direction");
|
||||
irq_stat_en = 0;
|
||||
}
|
||||
|
||||
f_ospi_disable_irq_status(ospi, ~irq_stat_en);
|
||||
f_ospi_enable_irq_status(ospi, irq_stat_en);
|
||||
|
||||
return f_ospi_unprepare_config(ospi);
|
||||
}
|
||||
|
||||
static void f_ospi_indir_start_xfer(struct f_ospi *ospi)
|
||||
{
|
||||
/* Write only 1, auto cleared */
|
||||
writel(OSPI_TRANS_CTL_START_REQ, ospi->base + OSPI_TRANS_CTL);
|
||||
}
|
||||
|
||||
static void f_ospi_indir_stop_xfer(struct f_ospi *ospi)
|
||||
{
|
||||
/* Write only 1, auto cleared */
|
||||
writel(OSPI_TRANS_CTL_STOP_REQ, ospi->base + OSPI_TRANS_CTL);
|
||||
}
|
||||
|
||||
static int f_ospi_indir_wait_xfer_complete(struct f_ospi *ospi)
|
||||
{
|
||||
u32 val;
|
||||
|
||||
return readl_poll_timeout(ospi->base + OSPI_IRQ, val,
|
||||
val & OSPI_IRQ_CS_TRANS_COMP,
|
||||
OSPI_WAIT_MAX_MSEC);
|
||||
}
|
||||
|
||||
static int f_ospi_indir_read(struct f_ospi *ospi,
|
||||
const struct spi_mem_op *op)
|
||||
{
|
||||
u8 *buf = op->data.buf.in;
|
||||
u32 val;
|
||||
int i, ret;
|
||||
|
||||
/* E1-2: Prepare transfer operation */
|
||||
ret = f_ospi_indir_prepare_op(ospi, op);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
f_ospi_indir_start_xfer(ospi);
|
||||
|
||||
/* E3-4: Wait for ready and read data */
|
||||
for (i = 0; i < op->data.nbytes; i++) {
|
||||
ret = readl_poll_timeout(ospi->base + OSPI_IRQ, val,
|
||||
val & OSPI_IRQ_READ_BUF_READY,
|
||||
OSPI_WAIT_MAX_MSEC);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
buf[i] = readl(ospi->base + OSPI_DAT) & 0xFF;
|
||||
}
|
||||
|
||||
/* E5-6: Stop transfer if data size is nothing */
|
||||
if (!(readl(ospi->base + OSPI_DAT_SIZE_INDIR) & OSPI_DAT_SIZE_EN))
|
||||
f_ospi_indir_stop_xfer(ospi);
|
||||
|
||||
/* E7-8: Wait for completion and clear */
|
||||
ret = f_ospi_indir_wait_xfer_complete(ospi);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
writel(OSPI_IRQ_CS_TRANS_COMP, ospi->base + OSPI_IRQ);
|
||||
|
||||
/* E9: Do nothing if data size is valid */
|
||||
if (readl(ospi->base + OSPI_DAT_SIZE_INDIR) & OSPI_DAT_SIZE_EN)
|
||||
goto out;
|
||||
|
||||
/* E10-11: Reset and check read fifo */
|
||||
writel(OSPI_SWRST_INDIR_READ_FIFO, ospi->base + OSPI_SWRST);
|
||||
|
||||
ret = readl_poll_timeout(ospi->base + OSPI_SWRST, val,
|
||||
!(val & OSPI_SWRST_INDIR_READ_FIFO),
|
||||
OSPI_WAIT_MAX_MSEC);
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int f_ospi_indir_write(struct f_ospi *ospi,
|
||||
const struct spi_mem_op *op)
|
||||
{
|
||||
u8 *buf = (u8 *)op->data.buf.out;
|
||||
u32 val;
|
||||
int i, ret;
|
||||
|
||||
/* F1-3: Prepare transfer operation */
|
||||
ret = f_ospi_indir_prepare_op(ospi, op);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
f_ospi_indir_start_xfer(ospi);
|
||||
|
||||
if (!(readl(ospi->base + OSPI_PROT_CTL_INDIR) & OSPI_PROT_DATA_EN))
|
||||
goto nodata;
|
||||
|
||||
/* F4-5: Wait for buffer ready and write data */
|
||||
for (i = 0; i < op->data.nbytes; i++) {
|
||||
ret = readl_poll_timeout(ospi->base + OSPI_IRQ, val,
|
||||
val & OSPI_IRQ_WRITE_BUF_READY,
|
||||
OSPI_WAIT_MAX_MSEC);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
writel(buf[i], ospi->base + OSPI_DAT);
|
||||
}
|
||||
|
||||
/* F6-7: Stop transfer if data size is nothing */
|
||||
if (!(readl(ospi->base + OSPI_DAT_SIZE_INDIR) & OSPI_DAT_SIZE_EN))
|
||||
f_ospi_indir_stop_xfer(ospi);
|
||||
|
||||
nodata:
|
||||
/* F8-9: Wait for completion and clear */
|
||||
ret = f_ospi_indir_wait_xfer_complete(ospi);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
writel(OSPI_IRQ_CS_TRANS_COMP, ospi->base + OSPI_IRQ);
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int f_ospi_exec_op(struct spi_slave *slave, const struct spi_mem_op *op)
|
||||
{
|
||||
struct f_ospi *ospi = dev_get_priv(slave->dev->parent);
|
||||
struct dm_spi_slave_plat *slave_plat;
|
||||
int err = 0;
|
||||
|
||||
slave_plat = dev_get_parent_plat(slave->dev);
|
||||
ospi->chip_select = slave_plat->cs;
|
||||
|
||||
switch (op->data.dir) {
|
||||
case SPI_MEM_DATA_IN:
|
||||
err = f_ospi_indir_read(ospi, op);
|
||||
break;
|
||||
|
||||
case SPI_MEM_DATA_OUT:
|
||||
fallthrough;
|
||||
case SPI_MEM_NO_DATA:
|
||||
err = f_ospi_indir_write(ospi, op);
|
||||
break;
|
||||
|
||||
default:
|
||||
dev_warn(ospi->dev, "Unsupported direction");
|
||||
err = -EOPNOTSUPP;
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static bool f_ospi_supports_op_width(const struct spi_mem_op *op)
|
||||
{
|
||||
u8 width_available[] = { 0, 1, 2, 4, 8 };
|
||||
u8 width_op[] = { op->cmd.buswidth, op->addr.buswidth,
|
||||
op->dummy.buswidth, op->data.buswidth };
|
||||
bool is_match_found;
|
||||
int i, j;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(width_op); i++) {
|
||||
is_match_found = false;
|
||||
|
||||
for (j = 0; j < ARRAY_SIZE(width_available); j++) {
|
||||
if (width_op[i] == width_available[j]) {
|
||||
is_match_found = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!is_match_found)
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool f_ospi_supports_op(struct spi_slave *slave,
|
||||
const struct spi_mem_op *op)
|
||||
{
|
||||
if (f_ospi_get_dummy_cycle(op) > OSPI_DUMMY_CYCLE_MAX)
|
||||
return false;
|
||||
|
||||
if (op->addr.nbytes > 4)
|
||||
return false;
|
||||
|
||||
if (!f_ospi_supports_op_width(op))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static int f_ospi_adjust_op_size(struct spi_slave *slave, struct spi_mem_op *op)
|
||||
{
|
||||
op->data.nbytes = min((int)op->data.nbytes, (int)(OSPI_DAT_SIZE_MAX));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct spi_controller_mem_ops f_ospi_mem_ops = {
|
||||
.adjust_op_size = f_ospi_adjust_op_size,
|
||||
.supports_op = f_ospi_supports_op,
|
||||
.exec_op = f_ospi_exec_op,
|
||||
};
|
||||
|
||||
static int f_ospi_set_speed(struct udevice *bus, u32 speed)
|
||||
{
|
||||
struct f_ospi *ospi = dev_get_priv(bus);
|
||||
|
||||
ospi->max_speed_hz = speed;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int f_ospi_set_mode(struct udevice *bus, u32 mode)
|
||||
{
|
||||
struct f_ospi *ospi = dev_get_priv(bus);
|
||||
|
||||
ospi->mode = mode;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int f_ospi_init(struct f_ospi *ospi)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = f_ospi_prepare_config(ospi);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Disable boot signal */
|
||||
writel(OSPI_ACC_MODE_BOOT_DISABLE, ospi->base + OSPI_ACC_MODE);
|
||||
|
||||
f_ospi_config_dll(ospi);
|
||||
|
||||
/* Disable IRQ */
|
||||
f_ospi_clear_irq(ospi);
|
||||
f_ospi_disable_irq_status(ospi, OSPI_IRQ_ALL);
|
||||
f_ospi_disable_irq_output(ospi, OSPI_IRQ_ALL);
|
||||
|
||||
return f_ospi_unprepare_config(ospi);
|
||||
}
|
||||
|
||||
static int f_ospi_of_to_plat(struct udevice *dev)
|
||||
{
|
||||
struct f_ospi *ospi = dev_get_priv(dev);
|
||||
|
||||
ospi->base = dev_read_addr_ptr(dev);
|
||||
ospi->num_cs = dev_read_u32_default(dev, "num-cs", OSPI_NUM_CS);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int f_ospi_probe(struct udevice *dev)
|
||||
{
|
||||
struct f_ospi *ospi = dev_get_priv(dev);
|
||||
int ret;
|
||||
|
||||
ospi->dev = dev;
|
||||
|
||||
ret = clk_get_by_index(dev, 0, &ospi->clk);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "Failed to get clock\n");
|
||||
goto err_put_ctlr;
|
||||
}
|
||||
|
||||
ret = clk_enable(&ospi->clk);
|
||||
if (ret) {
|
||||
dev_err(dev, "Failed to enable the clock\n");
|
||||
goto err_put_ctlr;
|
||||
}
|
||||
|
||||
ret = f_ospi_init(ospi);
|
||||
if (ret)
|
||||
goto err_disable_clk;
|
||||
|
||||
return 0;
|
||||
|
||||
err_disable_clk:
|
||||
clk_disable(&ospi->clk);
|
||||
|
||||
err_put_ctlr:
|
||||
dev_err(dev, "Socionext F_OSPI probe failed\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int f_ospi_remove(struct udevice *dev)
|
||||
{
|
||||
struct f_ospi *ospi = dev_get_priv(dev);
|
||||
|
||||
clk_disable(&ospi->clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dm_spi_ops f_ospi_ops = {
|
||||
.set_speed = f_ospi_set_speed,
|
||||
.set_mode = f_ospi_set_mode,
|
||||
.mem_ops = &f_ospi_mem_ops,
|
||||
};
|
||||
|
||||
static const struct udevice_id f_ospi_dt_ids[] = {
|
||||
{ .compatible = "socionext,f-ospi" },
|
||||
{}
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(f_ospi) = {
|
||||
.name = "sn-f-ospi",
|
||||
.id = UCLASS_SPI,
|
||||
.of_match = f_ospi_dt_ids,
|
||||
.of_to_plat = f_ospi_of_to_plat,
|
||||
.ops = &f_ospi_ops,
|
||||
.probe = f_ospi_probe,
|
||||
.remove = f_ospi_remove,
|
||||
.priv_auto = sizeof(struct f_ospi),
|
||||
};
|
||||
@@ -141,6 +141,7 @@
|
||||
#define SPINOR_REG_ADDR_STR1V 0x00800000
|
||||
#define SPINOR_REG_ADDR_CFR1V 0x00800002
|
||||
#define SPINOR_REG_ADDR_CFR3V 0x00800004
|
||||
#define SPINOR_REG_ADDR_ARCFN 0x00000006
|
||||
#define CFR3V_UNHYSA BIT(3) /* Uniform sectors or not */
|
||||
#define CFR3V_PGMBUF BIT(4) /* Program buffer size */
|
||||
|
||||
@@ -189,12 +190,17 @@
|
||||
#define SPINOR_OP_WR_ANY_REG 0x71 /* Write any register */
|
||||
#define SPINOR_OP_S28_SE_4K 0x21
|
||||
#define SPINOR_REG_CYPRESS_CFR2V 0x00800003
|
||||
#define SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24 0xb
|
||||
#define SPINOR_REG_CYPRESS_CFR2_MEMLAT_11_24 0xb
|
||||
#define SPINOR_REG_CYPRESS_CFR3V 0x00800004
|
||||
#define SPINOR_REG_CYPRESS_CFR3V_PGSZ BIT(4) /* Page size. */
|
||||
#define SPINOR_REG_CYPRESS_CFR3V_UNISECT BIT(3) /* Uniform sector mode */
|
||||
#define SPINOR_REG_CYPRESS_CFR3_PGSZ BIT(4) /* Page size. */
|
||||
#define SPINOR_REG_CYPRESS_CFR3_UNISECT BIT(3) /* Uniform sector mode */
|
||||
#define SPINOR_REG_CYPRESS_CFR5V 0x00800006
|
||||
#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN 0x3
|
||||
#define SPINOR_REG_CYPRESS_CFR5_BIT6 BIT(6)
|
||||
#define SPINOR_REG_CYPRESS_CFR5_DDR BIT(1)
|
||||
#define SPINOR_REG_CYPRESS_CFR5_OPI BIT(0)
|
||||
#define SPINOR_REG_CYPRESS_CFR5_OCT_DTR_EN \
|
||||
(SPINOR_REG_CYPRESS_CFR5_BIT6 | SPINOR_REG_CYPRESS_CFR5_DDR | \
|
||||
SPINOR_REG_CYPRESS_CFR5_OPI)
|
||||
#define SPINOR_OP_CYPRESS_RD_FAST 0xee
|
||||
|
||||
/* Supported SPI protocols */
|
||||
|
||||
Reference in New Issue
Block a user