4ba patches

https://patchwork.coreboot.org/patch/4459
https://patchwork.coreboot.org/patch/4461
https://patchwork.coreboot.org/patch/4463
https://patchwork.coreboot.org/patch/4460
https://patchwork.coreboot.org/patch/4464
https://patchwork.coreboot.org/patch/4462
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>

Change-Id: I2b69a7a537726349742edc3a00054c39b732ac36

1 files changed, 114 insertions, 0 deletions

diff --git a/spi4ba.h b/spi4ba.h
new file mode 100644
index 0000000..8e500d1
--- /dev/null
+++ b/spi4ba.h
@@ -0,0 +1,114 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2014 Boris Baykov
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+
+/*
+ * JEDEC flash chips instructions for 4-bytes addressing
+ * SPI chip driver functions for 4-bytes addressing
+ */
+
+#ifndef __SPI_4BA_H__
+#define __SPI_4BA_H__ 1
+
+/* Enter 4-byte Address Mode */
+#define JEDEC_ENTER_4_BYTE_ADDR_MODE		0xB7
+#define JEDEC_ENTER_4_BYTE_ADDR_MODE_OUTSIZE	0x01
+#define JEDEC_ENTER_4_BYTE_ADDR_MODE_INSIZE	0x00
+
+/* Exit 4-byte Address Mode */
+#define JEDEC_EXIT_4_BYTE_ADDR_MODE		0xE9
+#define JEDEC_EXIT_4_BYTE_ADDR_MODE_OUTSIZE	0x01
+#define JEDEC_EXIT_4_BYTE_ADDR_MODE_INSIZE	0x00
+
+/* Write Extended Address Register */
+#define JEDEC_WRITE_EXT_ADDR_REG		0xC5
+#define JEDEC_WRITE_EXT_ADDR_REG_OUTSIZE	0x02
+#define JEDEC_WRITE_EXT_ADDR_REG_INSIZE		0x00
+
+/* Read Extended Address Register */
+#define JEDEC_READ_EXT_ADDR_REG			0xC8
+#define JEDEC_READ_EXT_ADDR_REG_OUTSIZE		0x01
+#define JEDEC_READ_EXT_ADDR_REG_INSIZE		0x01
+
+/* Read the memory with 4-byte address
+   From ANY mode (3-bytes or 4-bytes) it works with 4-byte address */
+#define JEDEC_READ_4BA		0x13
+#define JEDEC_READ_4BA_OUTSIZE	0x05
+/*      JEDEC_READ_4BA_INSIZE : any length */
+
+/* Write memory byte with 4-byte address
+   From ANY mode (3-bytes or 4-bytes) it works with 4-byte address */
+#define JEDEC_BYTE_PROGRAM_4BA		0x12
+#define JEDEC_BYTE_PROGRAM_4BA_OUTSIZE	0x06
+#define JEDEC_BYTE_PROGRAM_4BA_INSIZE	0x00
+
+/* Sector Erase 0x21 (with 4-byte address), usually 4k size.
+   From ANY mode (3-bytes or 4-bytes) it works with 4-byte address */
+#define JEDEC_SE_4BA		0x21
+#define JEDEC_SE_4BA_OUTSIZE	0x05
+#define JEDEC_SE_4BA_INSIZE	0x00
+
+/* Block Erase 0x5C (with 4-byte address), usually 32k size.
+   From ANY mode (3-bytes or 4-bytes) it works with 4-byte address */
+#define JEDEC_BE_5C_4BA		0x5C
+#define JEDEC_BE_5C_4BA_OUTSIZE	0x05
+#define JEDEC_BE_5C_4BA_INSIZE	0x00
+
+/* Block Erase 0xDC (with 4-byte address), usually 64k size.
+   From ANY mode (3-bytes or 4-bytes) it works with 4-byte address */
+#define JEDEC_BE_DC_4BA		0xdc
+#define JEDEC_BE_DC_4BA_OUTSIZE	0x05
+#define JEDEC_BE_DC_4BA_INSIZE	0x00
+
+/* enter 4-bytes addressing mode */
+int spi_enter_4ba_b7(struct flashctx *flash);
+int spi_enter_4ba_b7_we(struct flashctx *flash);
+
+/* read/write flash bytes in 4-bytes addressing mode */
+int spi_byte_program_4ba(struct flashctx *flash, unsigned int addr, uint8_t databyte);
+int spi_nbyte_program_4ba(struct flashctx *flash, unsigned int addr, const uint8_t *bytes, unsigned int len);
+int spi_nbyte_read_4ba(struct flashctx *flash, unsigned int addr, uint8_t *bytes, unsigned int len);
+
+/* erase flash bytes in 4-bytes addressing mode */
+int spi_block_erase_20_4ba(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_52_4ba(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_d8_4ba(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+
+/* read/write flash bytes from 3-bytes addressing mode using extended address register */
+int spi_byte_program_4ba_ereg(struct flashctx *flash, unsigned int addr, uint8_t databyte);
+int spi_nbyte_program_4ba_ereg(struct flashctx *flash, unsigned int addr, const uint8_t *bytes, unsigned int len);
+int spi_nbyte_read_4ba_ereg(struct flashctx *flash, unsigned int addr, uint8_t *bytes, unsigned int len);
+
+/* erase flash bytes from 3-bytes addressing mode using extended address register */
+int spi_block_erase_20_4ba_ereg(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_52_4ba_ereg(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_d8_4ba_ereg(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+
+/* read/write flash bytes with 4-bytes address from any mode (3-byte or 4-byte) */
+int spi_byte_program_4ba_direct(struct flashctx *flash, unsigned int addr, uint8_t databyte);
+int spi_nbyte_program_4ba_direct(struct flashctx *flash, unsigned int addr, const uint8_t *bytes, unsigned int len);
+int spi_nbyte_read_4ba_direct(struct flashctx *flash, unsigned int addr, uint8_t *bytes, unsigned int len);
+
+/* erase flash bytes with 4-bytes address from any mode (3-byte or 4-byte) */
+int spi_block_erase_21_4ba_direct(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_5c_4ba_direct(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_dc_4ba_direct(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+
+
+#endif /* __SPI_4BA_H__ */