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stm32mp: stm32prog: add serial link support

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Add a support of UART, using the same protocol than MCU STM32.

See "AN5275: USB DFU/USART protocols used in STM32MP1 Series
bootloaders" for details.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Patrick Delaunay
2020-03-18 09:25:00 +01:00
parent 6ce1f4ad8d
commit 468f0508b5
6 changed files with 1021 additions and 1 deletions
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2
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_usb.c
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@@ -19,6 +19,7 @@ static int stm32prog_set_phase(struct stm32prog_data *data, u8 phase,
if (phase == data->phase) {
data->offset = offset;
data->dfu_seq = 0;
return 0;
}
@@ -29,6 +30,7 @@ static int stm32prog_set_phase(struct stm32prog_data *data, u8 phase,
data->cur_part = part;
data->phase = phase;
data->offset = offset;
data->dfu_seq = 0;
return 0;
}
}