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stm32mp: stm32prog: add otp update support

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Add a virtual partition to update the STM32MP15x OTP based
on SMC service provided by TF-A.

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 09:24:58 +01:00
parent 2bad5d082d
commit 936f1aea80
3 changed files with 151 additions and 1 deletions
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11
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_usb.c
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@@ -130,6 +130,10 @@ int stm32prog_write_medium_virt(struct dfu_entity *dfu, u64 offset,
switch (dfu->data.virt.dev_num) {
case PHASE_CMD:
return stm32prog_cmd_write(offset, buf, len);
case PHASE_OTP:
return stm32prog_otp_write(stm32prog_data, (u32)offset,
buf, len);
}
*len = 0;
return 0;
@@ -144,6 +148,10 @@ int stm32prog_read_medium_virt(struct dfu_entity *dfu, u64 offset,
switch (dfu->data.virt.dev_num) {
case PHASE_CMD:
return stm32prog_cmd_read(offset, buf, len);
case PHASE_OTP:
return stm32prog_otp_read(stm32prog_data, (u32)offset,
buf, len);
}
*len = 0;
return 0;
@@ -162,6 +170,9 @@ int stm32prog_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
case PHASE_CMD:
*size = 512;
break;
case PHASE_OTP:
*size = OTP_SIZE;
break;
}
return 0;