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  1. 13 Oct, 2020 1 commit
  3. 08 Jul, 2020 3 commits
    • Etienne Carriere's avatar
      stm32mp1: register shared resource per GPIO bank/pin · ec8f4212
      Etienne Carriere authored 
      

Introduce helper functions stm32mp_register_secure_gpio() and
stm32mp_register_non_secure_gpio() for drivers to register a
GPIO pin as secure or non-secure.

These functions are stubbed when shared resource driver is not
embedded in the BL image so that drivers do not bother whether they
shall register or not their resources.

Change-Id: I1fe98576c072ae31f75427c9ac5c9f6c4f1b6ed1
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@st.com>
      ec8f4212
    • Etienne Carriere's avatar
      stm32mp1: register shared resource per IOMEM address · 0651b5b7
      Etienne Carriere authored 
      

Introduce helper functions stm32mp_register_secure_periph_iomem()
and stm32mp_register_non_secure_periph_iomem() for drivers to
register a resource as secure or non-secure based on its SoC
interface registers base address.

These functions are stubbed when shared resources driver is not
embedded (!STM32MP_SHARED_RESOURCES) so that drivers embedded
in other BL stages do not bother whether they shall register or
not their resources.

Change-Id: Icebd05a930afc5964bc4677357da5d1b23666066
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@st.com>
      0651b5b7
    • Etienne Carriere's avatar
      stm32mp1: shared resources: peripheral registering · 68450c94
      Etienne Carriere authored 
      

Define helper functions stm32mp_register_secure_periph() and
stm32mp_register_non_secure_periph() for platform drivers to
register a shared resource assigned to respectively secure
or non-secure world.

Some resources are related to clock resources. When a resource is
registered as secure, ensure its clock dependencies are also
registered as secure. Registering a non-secure resource does not
mandate its clock dependencies are also registered as non-secure.

Change-Id: I74975be8976b8d3bf18dcc807541a072803af6e3
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@st.com>
      68450c94
  5. 23 Jun, 2020 2 commits
    • Etienne Carriere's avatar
      stm32mp1: shared resources: apply registered configuration · 5f038ac6
      Etienne Carriere authored 
      

BL32/SP_MIN configures platform security hardening from the shared
resources driver.  At the end of SP_MIN initialization, all shared
resources shall be assigned to secure or non-secure world by
drivers. A lock prevent from further change on the resource
assignation. By definition, resources not registered are assign
to non-secure world since not claimed by any component on the BL.

No functional change as all resources are currently in state
SHRES_UNREGISTERED hence assigned to non-secure world as prior
this change in stm32mp1_etzpc_early_setup() and
sp_min_platform_setup().

Change-Id: Ic41fab47216c3b8b7a6a75b8358cfcec411ed941
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@st.com>
      5f038ac6
    • Etienne Carriere's avatar
      stm32mp1: introduce shared resources support · 47cf5d3f
      Etienne Carriere authored 
      

STM32MP1 SoC includes peripheral interfaces that can be assigned to
the secure world, or that can be opened to the non-secure world.

This change introduces the basics of a driver that manages such
resources which assignation is done at run time. It currently offers
API functions that state whether a service exposed to non-secure
world has permission to access a targeted clock or reset controller.

Change-Id: Iff20028f41586bc501085488c03546ffe31046d8
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@st.com>
      47cf5d3f
  7. 11 May, 2020 1 commit
    • Etienne Carriere's avatar
      plat/stm32mp1: fdt helpers for secure aware gpio bank · ccc199ed
      Etienne Carriere authored 
      

New helper functions to get GPIO banks configuration from the FDT.

stm32_get_gpio_bank_pinctrl_node() allows stm32mp platforms to
differentiate specific GPIO banks when these are defined with a specific
path in the FDT.

fdt_get_gpio_bank_pin_count() returns the number of pins in a GPIO bank
as it depends on the SoC variant.

Change-Id: I4481774152b3c6bf35bf986f58e357c2f9c19176
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@st.com>
      ccc199ed
  9. 05 May, 2020 1 commit
    • Andre Przywara's avatar
      plat/stm32: Use generic fdt_get_reg_props_by_name() · 7ad6d362
      Andre Przywara authored 
      

The STM32 platform port parse DT nodes to find base address to
peripherals. It does this by using its own implementation, even though
this functionality is generic and actually widely useful outside of the
STM32 code.

Re-implement fdt_get_reg_props_by_name() on top of the newly introduced
fdt_get_reg_props_by_index() function, and move it to fdt_wrapper.c.
This is removes the assumption that #address-cells and #size-cells are
always one.

Change-Id: I6d584930262c732b6e0356d98aea50b2654f789d
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      7ad6d362
  11. 29 Apr, 2020 1 commit
    • Andre Przywara's avatar
      plat/stm32: Implement fdt_read_uint32_default() as a wrapper · be858cff
      Andre Przywara authored 
      

The STM32 platform code uses its own set of FDT helper functions,
although some of them are fairly generic.

Remove the implementation of fdt_read_uint32_default() and implement it
on top of the newly introduced fdt_read_uint32() function, then convert
all users over.

This also fixes two callers, which were slightly abusing the "default"
semantic.

Change-Id: I570533362b4846e58dd797a92347de3e0e5abb75
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      be858cff
  13. 28 Apr, 2020 1 commit
    • Andre Przywara's avatar
      plat/stm32: Use generic fdt_read_uint32_array() implementation · 52a616b4
      Andre Przywara authored 
      

The device tree parsing code for the STM32 platform is using its own FDT
helper functions, some of them being rather generic.
In particular the existing fdt_read_uint32_array() implementation is now
almost identical to the new generic code in fdt_wrappers.c, so we can
remove the ST specific version and adjust the existing callers.

Compared to the original ST implementation the new version takes a
pointer to the DTB as the first argument, and also swaps the order of
the number of cells and the pointer.

Change-Id: Id06b0f1ba4db1ad1f733be40e82c34f46638551a
Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      52a616b4
  15. 26 Mar, 2020 1 commit
    • Yann Gautier's avatar
      stm32mp1: dynamically map DDR later and non-cacheable during its test · 84686ba3
      Yann Gautier authored 
      

A speculative accesses to DDR could be done whereas it was not reachable
and could lead to bus stall.
To correct this the dynamic mapping in MMU is used.
A first mapping is done for DDR tests with MT_NON_CACHEABLE attribute,
once DDR access is setup. It is then unmapped and a new mapping DDR is done
with cacheable attribute (through MT_MEMORY) to speed-up BL33 (or OP-TEE)
load.

The disabling of cache during DDR tests is also removed, as now useless.
A call to new functions stm32mp_{,un}map_ddr_non_cacheable() is done
instead.

PLAT_XLAT_TABLES_DYNAMIC is activated globally as used in BL2 and BL32.

BL33 max size is also updated to take into account the secure and shared
memory areas. Those are used in OP-TEE case.

Change-Id: I22c48b4a48255ee264991c34ecbb15bfe87e67c3
Signed-off-by: default avatarYann Gautier <yann.gautier@st.com>
      84686ba3
  17. 20 Jan, 2020 1 commit
  19. 03 Oct, 2019 1 commit
    • Lionel Debieve's avatar
      delay: timeout detection support · 0711ee5c
      Lionel Debieve authored 
      

Introduce timeout_init_us/timeout_elapsed() delay tracking with CNTPCT.

timeout_init_us(some_timeout_us); returns a reference to detect
timeout for the provided microsecond delay value from current time.

timeout_elapsed(reference) return true/false whether the reference
timeout is elapsed.

Cherry picked from OP-TEE implementation [1].
  [1] commit 33d30a74502b ("core: timeout detection support")

Minor:
- Remove stm32mp platform duplicated implementation.
- Add new include in marvell ble.mk
Signed-off-by: default avatarEtienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: default avatarLionel Debieve <lionel.debieve@st.com>
Change-Id: Iaef6d43c11a2e6992fb48efdc674a0552755ad9c
      0711ee5c
  21. 23 Sep, 2019 1 commit
    • Lionel Debieve's avatar
      stm32mp1: add authentication support for stm32image · 4bdb1a7a
      Lionel Debieve authored 
      

This commit adds authentication binary support for STM32MP1.
It prints the bootrom authentication result if signed
image is used and authenticates the next loaded STM32 images.
It also enables the dynamic translation table support
(PLAT_XLAT_TABLES_DYNAMIC) to use bootrom services.
Signed-off-by: default avatarLionel Debieve <lionel.debieve@st.com>
Change-Id: Iba706519e0dc6b6fae1f3dd498383351f0f75f51
      4bdb1a7a
  23. 20 Sep, 2019 1 commit
  25. 02 Sep, 2019 6 commits
  27. 17 Jun, 2019 2 commits
  29. 14 Feb, 2019 5 commits