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authorSascha Hauer <s.hauer@pengutronix.de>2020-11-10 15:07:38 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2020-11-10 15:07:38 +0100
commit7b1d8b4b3561c043a79d5933a7c1eb9266dc328d (patch)
tree9c398aa20e22763a239d11eecf6fb4c1d06d4c97 /include/linux/mtd/jedec.h
parent0b0eada569b198aa3882cfec5874bc35a8a0fa14 (diff)
parent4db0f1c3dbe6173fdf91cbeb83e250719332c6a3 (diff)
downloadbarebox-7b1d8b4b3561c043a79d5933a7c1eb9266dc328d.tar.gz
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Merge branch 'for-next/mtd-nand'
Diffstat (limited to 'include/linux/mtd/jedec.h')
-rw-r--r--include/linux/mtd/jedec.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/include/linux/mtd/jedec.h b/include/linux/mtd/jedec.h
new file mode 100644
index 0000000000..0b6b59f7cf
--- /dev/null
+++ b/include/linux/mtd/jedec.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
+ * Steven J. Hill <sjhill@realitydiluted.com>
+ * Thomas Gleixner <tglx@linutronix.de>
+ *
+ * Contains all JEDEC related definitions
+ */
+
+#ifndef __LINUX_MTD_JEDEC_H
+#define __LINUX_MTD_JEDEC_H
+
+struct jedec_ecc_info {
+ u8 ecc_bits;
+ u8 codeword_size;
+ __le16 bb_per_lun;
+ __le16 block_endurance;
+ u8 reserved[2];
+} __packed;
+
+/* JEDEC features */
+#define JEDEC_FEATURE_16_BIT_BUS (1 << 0)
+
+struct nand_jedec_params {
+ /* rev info and features block */
+ /* 'J' 'E' 'S' 'D' */
+ u8 sig[4];
+ __le16 revision;
+ __le16 features;
+ u8 opt_cmd[3];
+ __le16 sec_cmd;
+ u8 num_of_param_pages;
+ u8 reserved0[18];
+
+ /* manufacturer information block */
+ char manufacturer[12];
+ char model[20];
+ u8 jedec_id[6];
+ u8 reserved1[10];
+
+ /* memory organization block */
+ __le32 byte_per_page;
+ __le16 spare_bytes_per_page;
+ u8 reserved2[6];
+ __le32 pages_per_block;
+ __le32 blocks_per_lun;
+ u8 lun_count;
+ u8 addr_cycles;
+ u8 bits_per_cell;
+ u8 programs_per_page;
+ u8 multi_plane_addr;
+ u8 multi_plane_op_attr;
+ u8 reserved3[38];
+
+ /* electrical parameter block */
+ __le16 async_sdr_speed_grade;
+ __le16 toggle_ddr_speed_grade;
+ __le16 sync_ddr_speed_grade;
+ u8 async_sdr_features;
+ u8 toggle_ddr_features;
+ u8 sync_ddr_features;
+ __le16 t_prog;
+ __le16 t_bers;
+ __le16 t_r;
+ __le16 t_r_multi_plane;
+ __le16 t_ccs;
+ __le16 io_pin_capacitance_typ;
+ __le16 input_pin_capacitance_typ;
+ __le16 clk_pin_capacitance_typ;
+ u8 driver_strength_support;
+ __le16 t_adl;
+ u8 reserved4[36];
+
+ /* ECC and endurance block */
+ u8 guaranteed_good_blocks;
+ __le16 guaranteed_block_endurance;
+ struct jedec_ecc_info ecc_info[4];
+ u8 reserved5[29];
+
+ /* reserved */
+ u8 reserved6[148];
+
+ /* vendor */
+ __le16 vendor_rev_num;
+ u8 reserved7[88];
+
+ /* CRC for Parameter Page */
+ __le16 crc;
+} __packed;
+
+#endif /* __LINUX_MTD_JEDEC_H */