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ARM: stm32mp: correctly handle Silicon revision

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Handle correctly the silicon revision = REV_ID[15:0] of Device Version
and the associated device marking, A to Z on STMicroelectronics STM32MP
SOCs.

This patch prepare the introduction of next STM32MP family,
with STM32MP13x Rev.Z for REV_ID = 1.1.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrick Delaunay 2022-04-15 15:00:43 +02:00 • committed by Patrice Chotard
parent 6a69eaf6f4
commit 655af9aa9c
2 changed files with 8 additions and 7 deletions
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6
arch/arm/mach-stm32mp/cpu.c
View file

@ -432,13 +432,13 @@ static void get_cpu_string_offsets(unsigned int *type, unsigned int *pkg,
/* Revision */
switch (get_cpu_rev()) {
case CPU_REVA:
case CPU_REV1:
*rev = 1;
break;
case CPU_REVB:
case CPU_REV2:
*rev = 2;
break;
case CPU_REVZ:
case CPU_REV2_1:
*rev = 3;
break;
default:

9
arch/arm/mach-stm32mp/include/mach/sys_proto.h
View file

@ -25,11 +25,12 @@ u32 get_cpu_type(void);
/* return CPU_DEV constants */
u32 get_cpu_dev(void);
#define CPU_REVA 0x1000
#define CPU_REVB 0x2000
#define CPU_REVZ 0x2001
#define CPU_REV1 0x1000
#define CPU_REV1_1 0x1001
#define CPU_REV2 0x2000
#define CPU_REV2_1 0x2001
/* return CPU_REV constants */
/* return Silicon revision = REV_ID[15:0] of Device Version */
u32 get_cpu_rev(void);
/* Get Package options from OTP */