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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.h
View file

@ -11,12 +11,15 @@
#define PHASE_FIRST_USER 0x10
#define PHASE_LAST_USER 0xF0
#define PHASE_CMD 0xF1
#define PHASE_OTP 0xF2
#define PHASE_END 0xFE
#define PHASE_RESET 0xFF
#define PHASE_DO_RESET 0x1FF
#define DEFAULT_ADDRESS 0xFFFFFFFF
#define OTP_SIZE 1024
enum stm32prog_target {
STM32PROG_NONE,
STM32PROG_MMC,
@ -116,6 +119,7 @@ struct stm32prog_data {
u32 offset;
char error[255];
struct stm32prog_part_t *cur_part;
u32 *otp_part;
/* STM32 header information */
struct raw_header_s *header_data;
@ -124,6 +128,13 @@ struct stm32prog_data {
extern struct stm32prog_data *stm32prog_data;
/* OTP access */
int stm32prog_otp_write(struct stm32prog_data *data, u32 offset,
u8 *buffer, long *size);
int stm32prog_otp_read(struct stm32prog_data *data, u32 offset,
u8 *buffer, long *size);
int stm32prog_otp_start(struct stm32prog_data *data);
/* generic part*/
u8 stm32prog_header_check(struct raw_header_s *raw_header,
struct image_header_s *header);