diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-10-14 09:28:06 +0200 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@gmail.com> | 2019-10-31 12:12:31 +0100 |
| commit | ec44cace4b8d23556924550fe76bf2744eb91144 (patch) | |
| tree | fa18cb82d82561fbf4790fd372e8ecd9b70522d6 /drivers/dfu | |
| parent | d5640f700d0413059b39cdd621c9401ef90d08fa (diff) | |
dfu: add DFU virtual backend
Add a virtual DFU backend to allow board specific read and write
(for OTP update for example).
Acked-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'drivers/dfu')
| -rw-r--r-- | drivers/dfu/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/dfu/Makefile | 1 | ||||
| -rw-r--r-- | drivers/dfu/dfu.c | 5 | ||||
| -rw-r--r-- | drivers/dfu/dfu_virt.c | 49 |
4 files changed, 61 insertions, 1 deletions
diff --git a/drivers/dfu/Kconfig b/drivers/dfu/Kconfig index 1e1dff33d2..9fe5bc0f58 100644 --- a/drivers/dfu/Kconfig +++ b/drivers/dfu/Kconfig @@ -60,5 +60,12 @@ config DFU_MTD help This option enables using DFU to read and write to on any MTD device. +config DFU_VIRT + bool "VIRTUAL flash back end for DFU" + help + This option enables using DFU to read and write to VIRTUAL device + used at board level to manage specific behavior + (OTP update for example). + endif endmenu diff --git a/drivers/dfu/Makefile b/drivers/dfu/Makefile index ebb119f398..0d7925c083 100644 --- a/drivers/dfu/Makefile +++ b/drivers/dfu/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_$(SPL_)DFU_NAND) += dfu_nand.o obj-$(CONFIG_$(SPL_)DFU_RAM) += dfu_ram.o obj-$(CONFIG_$(SPL_)DFU_SF) += dfu_sf.o obj-$(CONFIG_$(SPL_)DFU_TFTP) += dfu_tftp.o +obj-$(CONFIG_$(SPL_)DFU_VIRT) += dfu_virt.o diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c index 4f4a07b790..2697235c24 100644 --- a/drivers/dfu/dfu.c +++ b/drivers/dfu/dfu.c @@ -474,6 +474,9 @@ static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt, } else if (strcmp(interface, "sf") == 0) { if (dfu_fill_entity_sf(dfu, devstr, s)) return -1; + } else if (strcmp(interface, "virt") == 0) { + if (dfu_fill_entity_virt(dfu, devstr, s)) + return -1; } else { printf("%s: Device %s not (yet) supported!\n", __func__, interface); @@ -569,7 +572,7 @@ int dfu_config_entities(char *env, char *interface, char *devstr) const char *dfu_get_dev_type(enum dfu_device_type t) { const char *const dev_t[] = {NULL, "eMMC", "OneNAND", "NAND", "RAM", - "SF", "MTD"}; + "SF", "MTD", "VIRT"}; return dev_t[t]; } diff --git a/drivers/dfu/dfu_virt.c b/drivers/dfu/dfu_virt.c new file mode 100644 index 0000000000..ea8c71f100 --- /dev/null +++ b/drivers/dfu/dfu_virt.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause +/* + * Copyright (C) 2019, STMicroelectronics - All Rights Reserved + */ +#include <common.h> +#include <dfu.h> +#include <errno.h> +#include <malloc.h> + +int __weak dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset, + void *buf, long *len) +{ + debug("%s: off=0x%llx, len=0x%x\n", __func__, offset, (u32)*len); + + return 0; +} + +int __weak dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size) +{ + *size = 0; + + return 0; +} + +int __weak dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset, + void *buf, long *len) +{ + debug("%s: off=0x%llx, len=0x%x\n", __func__, offset, (u32)*len); + *len = 0; + + return 0; +} + +int dfu_fill_entity_virt(struct dfu_entity *dfu, char *devstr, char *s) +{ + debug("%s: devstr = %s\n", __func__, devstr); + + dfu->dev_type = DFU_DEV_VIRT; + dfu->layout = DFU_RAW_ADDR; + dfu->data.virt.dev_num = simple_strtoul(devstr, NULL, 10); + + dfu->write_medium = dfu_write_medium_virt; + dfu->get_medium_size = dfu_get_medium_size_virt; + dfu->read_medium = dfu_read_medium_virt; + + dfu->inited = 0; + + return 0; +} |