summaryrefslogtreecommitdiff
path: root/target/linux/atheros/patches-3.14/120-spiflash.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/atheros/patches-3.14/120-spiflash.patch')
-rw-r--r--target/linux/atheros/patches-3.14/120-spiflash.patch671
1 files changed, 0 insertions, 671 deletions
diff --git a/target/linux/atheros/patches-3.14/120-spiflash.patch b/target/linux/atheros/patches-3.14/120-spiflash.patch
deleted file mode 100644
index 9a55195..0000000
--- a/target/linux/atheros/patches-3.14/120-spiflash.patch
+++ /dev/null
@@ -1,671 +0,0 @@
---- a/drivers/mtd/devices/Kconfig
-+++ b/drivers/mtd/devices/Kconfig
-@@ -128,6 +128,10 @@ config MTD_BCM47XXSFLASH
- registered by bcma as platform devices. This enables driver for
- serial flash memories (only read-only mode is implemented).
-
-+config MTD_AR2315
-+ tristate "Atheros AR2315+ SPI Flash support"
-+ depends on ATHEROS_AR2315
-+
- config MTD_SLRAM
- tristate "Uncached system RAM"
- help
---- a/drivers/mtd/devices/Makefile
-+++ b/drivers/mtd/devices/Makefile
-@@ -15,6 +15,7 @@ obj-$(CONFIG_MTD_M25P80) += m25p80.o
- obj-$(CONFIG_MTD_NAND_OMAP_BCH) += elm.o
- obj-$(CONFIG_MTD_SPEAR_SMI) += spear_smi.o
- obj-$(CONFIG_MTD_SST25L) += sst25l.o
-+obj-$(CONFIG_MTD_AR2315) += ar2315.o
- obj-$(CONFIG_MTD_BCM47XXSFLASH) += bcm47xxsflash.o
-
-
---- /dev/null
-+++ b/drivers/mtd/devices/ar2315.c
-@@ -0,0 +1,536 @@
-+
-+/*
-+ * MTD driver for the SPI Flash Memory support on Atheros AR2315
-+ *
-+ * Copyright (c) 2005-2006 Atheros Communications Inc.
-+ * Copyright (C) 2006-2007 FON Technology, SL.
-+ * Copyright (C) 2006-2007 Imre Kaloz <kaloz@openwrt.org>
-+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
-+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
-+ *
-+ * This code is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ *
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/version.h>
-+#include <linux/errno.h>
-+#include <linux/slab.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/partitions.h>
-+#include <linux/platform_device.h>
-+#include <linux/sched.h>
-+#include <linux/root_dev.h>
-+#include <linux/delay.h>
-+#include <linux/io.h>
-+
-+#include "ar2315_spiflash.h"
-+
-+
-+#define SPIFLASH "spiflash: "
-+#define busy_wait(_priv, _condition, _wait) do { \
-+ while (_condition) { \
-+ spin_unlock_bh(&_priv->lock); \
-+ if (_wait > 1) \
-+ msleep(_wait); \
-+ else if ((_wait == 1) && need_resched()) \
-+ schedule(); \
-+ else \
-+ udelay(1); \
-+ spin_lock_bh(&_priv->lock); \
-+ } \
-+} while (0)
-+
-+enum {
-+ FLASH_NONE,
-+ FLASH_1MB,
-+ FLASH_2MB,
-+ FLASH_4MB,
-+ FLASH_8MB,
-+ FLASH_16MB,
-+};
-+
-+/* Flash configuration table */
-+struct flashconfig {
-+ u32 byte_cnt;
-+ u32 sector_cnt;
-+ u32 sector_size;
-+};
-+
-+static const struct flashconfig flashconfig_tbl[] = {
-+ [FLASH_NONE] = { 0, 0, 0},
-+ [FLASH_1MB] = { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT,
-+ STM_1MB_SECTOR_SIZE},
-+ [FLASH_2MB] = { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT,
-+ STM_2MB_SECTOR_SIZE},
-+ [FLASH_4MB] = { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT,
-+ STM_4MB_SECTOR_SIZE},
-+ [FLASH_8MB] = { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT,
-+ STM_8MB_SECTOR_SIZE},
-+ [FLASH_16MB] = { STM_16MB_BYTE_COUNT, STM_16MB_SECTOR_COUNT,
-+ STM_16MB_SECTOR_SIZE}
-+};
-+
-+/* Mapping of generic opcodes to STM serial flash opcodes */
-+enum {
-+ SPI_WRITE_ENABLE,
-+ SPI_WRITE_DISABLE,
-+ SPI_RD_STATUS,
-+ SPI_WR_STATUS,
-+ SPI_RD_DATA,
-+ SPI_FAST_RD_DATA,
-+ SPI_PAGE_PROGRAM,
-+ SPI_SECTOR_ERASE,
-+ SPI_BULK_ERASE,
-+ SPI_DEEP_PWRDOWN,
-+ SPI_RD_SIG,
-+};
-+
-+struct opcodes {
-+ __u16 code;
-+ __s8 tx_cnt;
-+ __s8 rx_cnt;
-+};
-+
-+static const struct opcodes stm_opcodes[] = {
-+ [SPI_WRITE_ENABLE] = {STM_OP_WR_ENABLE, 1, 0},
-+ [SPI_WRITE_DISABLE] = {STM_OP_WR_DISABLE, 1, 0},
-+ [SPI_RD_STATUS] = {STM_OP_RD_STATUS, 1, 1},
-+ [SPI_WR_STATUS] = {STM_OP_WR_STATUS, 1, 0},
-+ [SPI_RD_DATA] = {STM_OP_RD_DATA, 4, 4},
-+ [SPI_FAST_RD_DATA] = {STM_OP_FAST_RD_DATA, 5, 0},
-+ [SPI_PAGE_PROGRAM] = {STM_OP_PAGE_PGRM, 8, 0},
-+ [SPI_SECTOR_ERASE] = {STM_OP_SECTOR_ERASE, 4, 0},
-+ [SPI_BULK_ERASE] = {STM_OP_BULK_ERASE, 1, 0},
-+ [SPI_DEEP_PWRDOWN] = {STM_OP_DEEP_PWRDOWN, 1, 0},
-+ [SPI_RD_SIG] = {STM_OP_RD_SIG, 4, 1},
-+};
-+
-+/* Driver private data structure */
-+struct spiflash_priv {
-+ struct mtd_info mtd;
-+ void __iomem *readaddr; /* memory mapped data for read */
-+ void __iomem *mmraddr; /* memory mapped register space */
-+ wait_queue_head_t wq;
-+ spinlock_t lock;
-+ int state;
-+};
-+
-+#define to_spiflash(_mtd) container_of(_mtd, struct spiflash_priv, mtd)
-+
-+enum {
-+ FL_READY,
-+ FL_READING,
-+ FL_ERASING,
-+ FL_WRITING
-+};
-+
-+/*****************************************************************************/
-+
-+static u32
-+spiflash_read_reg(struct spiflash_priv *priv, int reg)
-+{
-+ return ioread32(priv->mmraddr + reg);
-+}
-+
-+static void
-+spiflash_write_reg(struct spiflash_priv *priv, int reg, u32 data)
-+{
-+ iowrite32(data, priv->mmraddr + reg);
-+}
-+
-+static u32
-+spiflash_wait_busy(struct spiflash_priv *priv)
-+{
-+ u32 reg;
-+
-+ busy_wait(priv, (reg = spiflash_read_reg(priv, SPI_FLASH_CTL)) &
-+ SPI_CTL_BUSY, 0);
-+ return reg;
-+}
-+
-+static u32
-+spiflash_sendcmd(struct spiflash_priv *priv, int opcode, u32 addr)
-+{
-+ const struct opcodes *op;
-+ u32 reg, mask;
-+
-+ op = &stm_opcodes[opcode];
-+ reg = spiflash_wait_busy(priv);
-+ spiflash_write_reg(priv, SPI_FLASH_OPCODE,
-+ ((u32) op->code) | (addr << 8));
-+
-+ reg &= ~SPI_CTL_TX_RX_CNT_MASK;
-+ reg |= SPI_CTL_START | op->tx_cnt | (op->rx_cnt << 4);
-+
-+ spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
-+ spiflash_wait_busy(priv);
-+
-+ if (!op->rx_cnt)
-+ return 0;
-+
-+ reg = spiflash_read_reg(priv, SPI_FLASH_DATA);
-+
-+ switch (op->rx_cnt) {
-+ case 1:
-+ mask = 0x000000ff;
-+ break;
-+ case 2:
-+ mask = 0x0000ffff;
-+ break;
-+ case 3:
-+ mask = 0x00ffffff;
-+ break;
-+ default:
-+ mask = 0xffffffff;
-+ break;
-+ }
-+ reg &= mask;
-+
-+ return reg;
-+}
-+
-+
-+/*
-+ * Probe SPI flash device
-+ * Function returns 0 for failure.
-+ * and flashconfig_tbl array index for success.
-+ */
-+static int
-+spiflash_probe_chip(struct spiflash_priv *priv)
-+{
-+ u32 sig;
-+ int flash_size;
-+
-+ /* Read the signature on the flash device */
-+ spin_lock_bh(&priv->lock);
-+ sig = spiflash_sendcmd(priv, SPI_RD_SIG, 0);
-+ spin_unlock_bh(&priv->lock);
-+
-+ switch (sig) {
-+ case STM_8MBIT_SIGNATURE:
-+ flash_size = FLASH_1MB;
-+ break;
-+ case STM_16MBIT_SIGNATURE:
-+ flash_size = FLASH_2MB;
-+ break;
-+ case STM_32MBIT_SIGNATURE:
-+ flash_size = FLASH_4MB;
-+ break;
-+ case STM_64MBIT_SIGNATURE:
-+ flash_size = FLASH_8MB;
-+ break;
-+ case STM_128MBIT_SIGNATURE:
-+ flash_size = FLASH_16MB;
-+ break;
-+ default:
-+ pr_warn(SPIFLASH "Read of flash device signature failed!\n");
-+ return 0;
-+ }
-+
-+ return flash_size;
-+}
-+
-+
-+/* wait until the flash chip is ready and grab a lock */
-+static int spiflash_wait_ready(struct spiflash_priv *priv, int state)
-+{
-+ DECLARE_WAITQUEUE(wait, current);
-+
-+retry:
-+ spin_lock_bh(&priv->lock);
-+ if (priv->state != FL_READY) {
-+ set_current_state(TASK_UNINTERRUPTIBLE);
-+ add_wait_queue(&priv->wq, &wait);
-+ spin_unlock_bh(&priv->lock);
-+ schedule();
-+ remove_wait_queue(&priv->wq, &wait);
-+
-+ if (signal_pending(current))
-+ return 0;
-+
-+ goto retry;
-+ }
-+ priv->state = state;
-+
-+ return 1;
-+}
-+
-+static inline void spiflash_done(struct spiflash_priv *priv)
-+{
-+ priv->state = FL_READY;
-+ spin_unlock_bh(&priv->lock);
-+ wake_up(&priv->wq);
-+}
-+
-+static void
-+spiflash_wait_complete(struct spiflash_priv *priv, unsigned int timeout)
-+{
-+ busy_wait(priv, spiflash_sendcmd(priv, SPI_RD_STATUS, 0) &
-+ SPI_STATUS_WIP, timeout);
-+ spiflash_done(priv);
-+}
-+
-+
-+
-+static int
-+spiflash_erase(struct mtd_info *mtd, struct erase_info *instr)
-+{
-+ struct spiflash_priv *priv = to_spiflash(mtd);
-+ const struct opcodes *op;
-+ u32 temp, reg;
-+
-+ if (instr->addr + instr->len > mtd->size)
-+ return -EINVAL;
-+
-+ if (!spiflash_wait_ready(priv, FL_ERASING))
-+ return -EINTR;
-+
-+ spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0);
-+ reg = spiflash_wait_busy(priv);
-+
-+ op = &stm_opcodes[SPI_SECTOR_ERASE];
-+ temp = ((u32)instr->addr << 8) | (u32)(op->code);
-+ spiflash_write_reg(priv, SPI_FLASH_OPCODE, temp);
-+
-+ reg &= ~SPI_CTL_TX_RX_CNT_MASK;
-+ reg |= op->tx_cnt | SPI_CTL_START;
-+ spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
-+
-+ spiflash_wait_complete(priv, 20);
-+
-+ instr->state = MTD_ERASE_DONE;
-+ mtd_erase_callback(instr);
-+
-+ return 0;
-+}
-+
-+static int
-+spiflash_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
-+ u_char *buf)
-+{
-+ struct spiflash_priv *priv = to_spiflash(mtd);
-+
-+ if (!len)
-+ return 0;
-+
-+ if (from + len > mtd->size)
-+ return -EINVAL;
-+
-+ *retlen = len;
-+
-+ if (!spiflash_wait_ready(priv, FL_READING))
-+ return -EINTR;
-+
-+ memcpy_fromio(buf, priv->readaddr + from, len);
-+ spiflash_done(priv);
-+
-+ return 0;
-+}
-+
-+static int
-+spiflash_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
-+ const u8 *buf)
-+{
-+ struct spiflash_priv *priv = to_spiflash(mtd);
-+ u32 opcode, bytes_left;
-+
-+ *retlen = 0;
-+
-+ if (!len)
-+ return 0;
-+
-+ if (to + len > mtd->size)
-+ return -EINVAL;
-+
-+ bytes_left = len;
-+
-+ do {
-+ u32 read_len, reg, page_offset, spi_data = 0;
-+
-+ read_len = min(bytes_left, sizeof(u32));
-+
-+ /* 32-bit writes cannot span across a page boundary
-+ * (256 bytes). This types of writes require two page
-+ * program operations to handle it correctly. The STM part
-+ * will write the overflow data to the beginning of the
-+ * current page as opposed to the subsequent page.
-+ */
-+ page_offset = (to & (STM_PAGE_SIZE - 1)) + read_len;
-+
-+ if (page_offset > STM_PAGE_SIZE)
-+ read_len -= (page_offset - STM_PAGE_SIZE);
-+
-+ if (!spiflash_wait_ready(priv, FL_WRITING))
-+ return -EINTR;
-+
-+ spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0);
-+ spi_data = 0;
-+ switch (read_len) {
-+ case 4:
-+ spi_data |= buf[3] << 24;
-+ /* fall through */
-+ case 3:
-+ spi_data |= buf[2] << 16;
-+ /* fall through */
-+ case 2:
-+ spi_data |= buf[1] << 8;
-+ /* fall through */
-+ case 1:
-+ spi_data |= buf[0] & 0xff;
-+ break;
-+ default:
-+ break;
-+ }
-+
-+ spiflash_write_reg(priv, SPI_FLASH_DATA, spi_data);
-+ opcode = stm_opcodes[SPI_PAGE_PROGRAM].code |
-+ (to & 0x00ffffff) << 8;
-+ spiflash_write_reg(priv, SPI_FLASH_OPCODE, opcode);
-+
-+ reg = spiflash_read_reg(priv, SPI_FLASH_CTL);
-+ reg &= ~SPI_CTL_TX_RX_CNT_MASK;
-+ reg |= (read_len + 4) | SPI_CTL_START;
-+ spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
-+
-+ spiflash_wait_complete(priv, 1);
-+
-+ bytes_left -= read_len;
-+ to += read_len;
-+ buf += read_len;
-+
-+ *retlen += read_len;
-+ } while (bytes_left != 0);
-+
-+ return 0;
-+}
-+
-+
-+#if defined CONFIG_MTD_REDBOOT_PARTS || CONFIG_MTD_MYLOADER_PARTS
-+static const char * const part_probe_types[] = {
-+ "cmdlinepart", "RedBoot", "MyLoader", NULL
-+};
-+#endif
-+
-+
-+static int
-+spiflash_probe(struct platform_device *pdev)
-+{
-+ struct spiflash_priv *priv;
-+ struct mtd_info *mtd;
-+ struct resource *res;
-+ int index;
-+ int result = 0;
-+
-+ priv = kzalloc(sizeof(struct spiflash_priv), GFP_KERNEL);
-+ spin_lock_init(&priv->lock);
-+ init_waitqueue_head(&priv->wq);
-+ priv->state = FL_READY;
-+ mtd = &priv->mtd;
-+
-+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-+ if (!res) {
-+ dev_err(&pdev->dev, "No MMR resource found\n");
-+ goto error;
-+ }
-+
-+ priv->mmraddr = ioremap_nocache(res->start, resource_size(res));
-+ if (!priv->mmraddr) {
-+ dev_warn(&pdev->dev, SPIFLASH "Failed to map flash device\n");
-+ goto error;
-+ }
-+
-+ index = spiflash_probe_chip(priv);
-+ if (!index) {
-+ dev_warn(&pdev->dev, SPIFLASH "Found no flash device\n");
-+ goto error;
-+ }
-+
-+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ if (!res) {
-+ dev_err(&pdev->dev, "No flash readmem resource found\n");
-+ goto error;
-+ }
-+
-+ priv->readaddr = ioremap_nocache(res->start,
-+ flashconfig_tbl[index].byte_cnt);
-+ if (!priv->readaddr) {
-+ dev_warn(&pdev->dev, SPIFLASH "Failed to map flash device\n");
-+ goto error;
-+ }
-+
-+ platform_set_drvdata(pdev, priv);
-+ mtd->name = "spiflash";
-+ mtd->type = MTD_NORFLASH;
-+ mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE);
-+ mtd->size = flashconfig_tbl[index].byte_cnt;
-+ mtd->erasesize = flashconfig_tbl[index].sector_size;
-+ mtd->writesize = 1;
-+ mtd->numeraseregions = 0;
-+ mtd->eraseregions = NULL;
-+ mtd->_erase = spiflash_erase;
-+ mtd->_read = spiflash_read;
-+ mtd->_write = spiflash_write;
-+ mtd->owner = THIS_MODULE;
-+
-+ dev_info(&pdev->dev, "%lld Kbytes flash detected\n", mtd->size >> 10);
-+
-+#if defined CONFIG_MTD_REDBOOT_PARTS || CONFIG_MTD_MYLOADER_PARTS
-+ /* parse redboot partitions */
-+
-+ result = mtd_device_parse_register(mtd, part_probe_types,
-+ NULL, NULL, 0);
-+#endif
-+
-+ return result;
-+
-+error:
-+ if (priv->mmraddr)
-+ iounmap(priv->mmraddr);
-+ kfree(priv);
-+ return -ENXIO;
-+}
-+
-+static int
-+spiflash_remove(struct platform_device *pdev)
-+{
-+ struct spiflash_priv *priv = platform_get_drvdata(pdev);
-+ struct mtd_info *mtd = &priv->mtd;
-+
-+ mtd_device_unregister(mtd);
-+ iounmap(priv->mmraddr);
-+ iounmap(priv->readaddr);
-+ kfree(priv);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver spiflash_driver = {
-+ .driver.name = "ar2315-spiflash",
-+ .probe = spiflash_probe,
-+ .remove = spiflash_remove,
-+};
-+
-+static int __init
-+spiflash_init(void)
-+{
-+ return platform_driver_register(&spiflash_driver);
-+}
-+
-+static void __exit
-+spiflash_exit(void)
-+{
-+ return platform_driver_unregister(&spiflash_driver);
-+}
-+
-+module_init(spiflash_init);
-+module_exit(spiflash_exit);
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("OpenWrt.org, Atheros Communications Inc");
-+MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros SOC");
-+
---- /dev/null
-+++ b/drivers/mtd/devices/ar2315_spiflash.h
-@@ -0,0 +1,106 @@
-+/*
-+ * Atheros AR2315 SPI Flash Memory support header file.
-+ *
-+ * Copyright (c) 2005, Atheros Communications Inc.
-+ * Copyright (C) 2006 FON Technology, SL.
-+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
-+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * This code is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ *
-+ */
-+#ifndef __AR2315_SPIFLASH_H
-+#define __AR2315_SPIFLASH_H
-+
-+#define STM_PAGE_SIZE 256
-+
-+#define SFI_WRITE_BUFFER_SIZE 4
-+#define SFI_FLASH_ADDR_MASK 0x00ffffff
-+
-+#define STM_8MBIT_SIGNATURE 0x13
-+#define STM_M25P80_BYTE_COUNT 1048576
-+#define STM_M25P80_SECTOR_COUNT 16
-+#define STM_M25P80_SECTOR_SIZE 0x10000
-+
-+#define STM_16MBIT_SIGNATURE 0x14
-+#define STM_M25P16_BYTE_COUNT 2097152
-+#define STM_M25P16_SECTOR_COUNT 32
-+#define STM_M25P16_SECTOR_SIZE 0x10000
-+
-+#define STM_32MBIT_SIGNATURE 0x15
-+#define STM_M25P32_BYTE_COUNT 4194304
-+#define STM_M25P32_SECTOR_COUNT 64
-+#define STM_M25P32_SECTOR_SIZE 0x10000
-+
-+#define STM_64MBIT_SIGNATURE 0x16
-+#define STM_M25P64_BYTE_COUNT 8388608
-+#define STM_M25P64_SECTOR_COUNT 128
-+#define STM_M25P64_SECTOR_SIZE 0x10000
-+
-+#define STM_128MBIT_SIGNATURE 0x17
-+#define STM_M25P128_BYTE_COUNT 16777216
-+#define STM_M25P128_SECTOR_COUNT 256
-+#define STM_M25P128_SECTOR_SIZE 0x10000
-+
-+#define STM_1MB_BYTE_COUNT STM_M25P80_BYTE_COUNT
-+#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT
-+#define STM_1MB_SECTOR_SIZE STM_M25P80_SECTOR_SIZE
-+#define STM_2MB_BYTE_COUNT STM_M25P16_BYTE_COUNT
-+#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT
-+#define STM_2MB_SECTOR_SIZE STM_M25P16_SECTOR_SIZE
-+#define STM_4MB_BYTE_COUNT STM_M25P32_BYTE_COUNT
-+#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT
-+#define STM_4MB_SECTOR_SIZE STM_M25P32_SECTOR_SIZE
-+#define STM_8MB_BYTE_COUNT STM_M25P64_BYTE_COUNT
-+#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT
-+#define STM_8MB_SECTOR_SIZE STM_M25P64_SECTOR_SIZE
-+#define STM_16MB_BYTE_COUNT STM_M25P128_BYTE_COUNT
-+#define STM_16MB_SECTOR_COUNT STM_M25P128_SECTOR_COUNT
-+#define STM_16MB_SECTOR_SIZE STM_M25P128_SECTOR_SIZE
-+
-+/*
-+ * ST Microelectronics Opcodes for Serial Flash
-+ */
-+
-+#define STM_OP_WR_ENABLE 0x06 /* Write Enable */
-+#define STM_OP_WR_DISABLE 0x04 /* Write Disable */
-+#define STM_OP_RD_STATUS 0x05 /* Read Status */
-+#define STM_OP_WR_STATUS 0x01 /* Write Status */
-+#define STM_OP_RD_DATA 0x03 /* Read Data */
-+#define STM_OP_FAST_RD_DATA 0x0b /* Fast Read Data */
-+#define STM_OP_PAGE_PGRM 0x02 /* Page Program */
-+#define STM_OP_SECTOR_ERASE 0xd8 /* Sector Erase */
-+#define STM_OP_BULK_ERASE 0xc7 /* Bulk Erase */
-+#define STM_OP_DEEP_PWRDOWN 0xb9 /* Deep Power-Down Mode */
-+#define STM_OP_RD_SIG 0xab /* Read Electronic Signature */
-+
-+#define STM_STATUS_WIP 0x01 /* Write-In-Progress */
-+#define STM_STATUS_WEL 0x02 /* Write Enable Latch */
-+#define STM_STATUS_BP0 0x04 /* Block Protect 0 */
-+#define STM_STATUS_BP1 0x08 /* Block Protect 1 */
-+#define STM_STATUS_BP2 0x10 /* Block Protect 2 */
-+#define STM_STATUS_SRWD 0x80 /* Status Register Write Disable */
-+
-+/*
-+ * SPI Flash Interface Registers
-+ */
-+
-+#define SPI_FLASH_CTL 0x00
-+#define SPI_FLASH_OPCODE 0x04
-+#define SPI_FLASH_DATA 0x08
-+
-+#define SPI_CTL_START 0x00000100
-+#define SPI_CTL_BUSY 0x00010000
-+#define SPI_CTL_TXCNT_MASK 0x0000000f
-+#define SPI_CTL_RXCNT_MASK 0x000000f0
-+#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
-+#define SPI_CTL_SIZE_MASK 0x00060000
-+
-+#define SPI_CTL_CLK_SEL_MASK 0x03000000
-+#define SPI_OPCODE_MASK 0x000000ff
-+
-+#define SPI_STATUS_WIP STM_STATUS_WIP
-+
-+#endif
generated by cgit v1.1 at 2024-11-21 23:22:13 +0000