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-rw-r--r--drivers/firmware/Kconfig12
-rw-r--r--drivers/firmware/Makefile1
-rw-r--r--drivers/firmware/sigma.c118
3 files changed, 0 insertions, 131 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index efba163595d..9b00072a020 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -145,18 +145,6 @@ config ISCSI_IBFT
detect iSCSI boot parameters dynamically during system boot, say Y.
Otherwise, say N.
-config SIGMA
- tristate "SigmaStudio firmware loader"
- depends on I2C
- select CRC32
- default n
- help
- Enable helper functions for working with Analog Devices SigmaDSP
- parts and binary firmwares produced by Analog Devices SigmaStudio.
-
- If unsure, say N here. Drivers that need these helpers will select
- this option automatically.
-
source "drivers/firmware/google/Kconfig"
endmenu
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 47338c97912..5a7e2739972 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -12,6 +12,5 @@ obj-$(CONFIG_DMIID) += dmi-id.o
obj-$(CONFIG_ISCSI_IBFT_FIND) += iscsi_ibft_find.o
obj-$(CONFIG_ISCSI_IBFT) += iscsi_ibft.o
obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o
-obj-$(CONFIG_SIGMA) += sigma.o
obj-$(CONFIG_GOOGLE_FIRMWARE) += google/
diff --git a/drivers/firmware/sigma.c b/drivers/firmware/sigma.c
deleted file mode 100644
index f10fc521951..00000000000
--- a/drivers/firmware/sigma.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Load Analog Devices SigmaStudio firmware files
- *
- * Copyright 2009-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/crc32.h>
-#include <linux/delay.h>
-#include <linux/firmware.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/module.h>
-#include <linux/sigma.h>
-
-/* Return: 0==OK, <0==error, =1 ==no more actions */
-static int
-process_sigma_action(struct i2c_client *client, struct sigma_firmware *ssfw)
-{
- struct sigma_action *sa = (void *)(ssfw->fw->data + ssfw->pos);
- size_t len = sigma_action_len(sa);
- int ret = 0;
-
- pr_debug("%s: instr:%i addr:%#x len:%zu\n", __func__,
- sa->instr, sa->addr, len);
-
- switch (sa->instr) {
- case SIGMA_ACTION_WRITEXBYTES:
- case SIGMA_ACTION_WRITESINGLE:
- case SIGMA_ACTION_WRITESAFELOAD:
- if (ssfw->fw->size < ssfw->pos + len)
- return -EINVAL;
- ret = i2c_master_send(client, (void *)&sa->addr, len);
- if (ret < 0)
- return -EINVAL;
- break;
-
- case SIGMA_ACTION_DELAY:
- ret = 0;
- udelay(len);
- len = 0;
- break;
-
- case SIGMA_ACTION_END:
- return 1;
-
- default:
- return -EINVAL;
- }
-
- /* when arrive here ret=0 or sent data */
- ssfw->pos += sigma_action_size(sa, len);
- return ssfw->pos == ssfw->fw->size;
-}
-
-static int
-process_sigma_actions(struct i2c_client *client, struct sigma_firmware *ssfw)
-{
- pr_debug("%s: processing %p\n", __func__, ssfw);
-
- while (1) {
- int ret = process_sigma_action(client, ssfw);
- pr_debug("%s: action returned %i\n", __func__, ret);
- if (ret == 1)
- return 0;
- else if (ret)
- return ret;
- }
-}
-
-int process_sigma_firmware(struct i2c_client *client, const char *name)
-{
- int ret;
- struct sigma_firmware_header *ssfw_head;
- struct sigma_firmware ssfw;
- const struct firmware *fw;
- u32 crc;
-
- pr_debug("%s: loading firmware %s\n", __func__, name);
-
- /* first load the blob */
- ret = request_firmware(&fw, name, &client->dev);
- if (ret) {
- pr_debug("%s: request_firmware() failed with %i\n", __func__, ret);
- return ret;
- }
- ssfw.fw = fw;
-
- /* then verify the header */
- ret = -EINVAL;
- if (fw->size < sizeof(*ssfw_head))
- goto done;
-
- ssfw_head = (void *)fw->data;
- if (memcmp(ssfw_head->magic, SIGMA_MAGIC, ARRAY_SIZE(ssfw_head->magic)))
- goto done;
-
- crc = crc32(0, fw->data, fw->size);
- pr_debug("%s: crc=%x\n", __func__, crc);
- if (crc != ssfw_head->crc)
- goto done;
-
- ssfw.pos = sizeof(*ssfw_head);
-
- /* finally process all of the actions */
- ret = process_sigma_actions(client, &ssfw);
-
- done:
- release_firmware(fw);
-
- pr_debug("%s: loaded %s\n", __func__, name);
-
- return ret;
-}
-EXPORT_SYMBOL(process_sigma_firmware);
-
-MODULE_LICENSE("GPL");