Commit graph

56 commits

Author SHA1 Message Date
Patrick Delaunay
ade4e0428f stm32mp: don't map the reserved region with no-map property
No more map the reserved region with "no-map" property by marking
the corresponding TLB entries with invalid entry (=0) to avoid
speculative access.

The device tree parsing done in lmb_init_and_reserve() takes a
long time when it is executed without data cache, so it is called in
enable_caches() before to disable it.

This patch fixes an issue where predictive read access on secure DDR
OP-TEE reserved area are caught by firewall.

  Series-cc: marex
  Series-cc: pch
  Series-cc: marek.bykowski@gmail.com
  Series-cc: Ard Biesheuvel <ardb@kernel.org>
  Series-cc: Etienne Carriere <etienne.carriere@linaro.org>

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-06-07 10:48:40 -04:00
Tom Rini
3f2e3c7845 Add rt-thread art-pi board support based on STM32H750 SoC
Add Engicam i.Core STM32MP1 SoM
 Add FIP header support for STM32programmer
 Update uart number when no serial device found for STM32MP1
 Remove board_check_usb_power function when ADC flag is not set
 Update SPL size limitation for STM32MP1
 Set soc_type, soc_pkg, soc_rev env variables for STM32MP1
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Merge tag 'u-boot-stm32-20210409' of https://source.denx.de/u-boot/custodians/u-boot-stm

Add rt-thread art-pi board support based on STM32H750 SoC
Add Engicam i.Core STM32MP1 SoM
Add FIP header support for STM32programmer
Update uart number when no serial device found for STM32MP1
Remove board_check_usb_power function when ADC flag is not set
Update SPL size limitation for STM32MP1
Set soc_type, soc_pkg, soc_rev env variables for STM32MP1
2021-04-09 13:10:59 -04:00
Marek Vasut
2c2d7d6a72 arm: stm32mp1: Set soc_type, soc_pkg, soc_rev env variables
Split up get_soc_name(), clean the decoding up a bit, and set up
environment variables which contain the SoC type, package, revision.
This is useful on SoMs, where multiple SoC options are populated.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-04-09 14:45:25 +02:00
Patrick Delaunay
cbea7b3e7e stm32mp: replace printf by log macro in setup_boot_mode
Replace the remaining printf in setup_boot_mode() by log macro
to handle filtering for log features.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-04-09 11:53:00 +02:00
Patrick Delaunay
5fc6e8694a stm32mp: update uart number in trace of serial device not found
Align the uart number in the trace of setup_boot_mode() with the name of
the uart/usart device (start at 1) and not with the instance value
(start at 0), i.e. the serial device sequence number and the index in
serial_addr[].

Fixes: f49eb16c17 ("stm32mp: stm32prog: replace alias by serial
device sequence number")

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-04-09 11:53:00 +02:00
Tom Rini
22fc991daf Prepare v2021.04-rc4
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Merge tag 'v2021.04-rc4' into next

Prepare v2021.04-rc4
2021-03-15 12:15:38 -04:00
Patrice Chotard
23e20b2fa6 arm: stm32mp: Fix compilation issue when SYS_DCACHE_OFF and/or SYS_DCACHE_SYS are enabled
Fix following compilation issue when SYS_DCACHE_OFF and/or SYS_DCACHE_SYS
are enabled :

arch/arm/mach-stm32mp/cpu.c: In function ‘early_enable_caches’:
arch/arm/mach-stm32mp/cpu.c:223:10: error: ‘volatile struct arch_global_data’ has no member named ‘tlb_size’
  223 |  gd->arch.tlb_size = PGTABLE_SIZE;
      |          ^
arch/arm/mach-stm32mp/cpu.c:224:10: error: ‘volatile struct arch_global_data’ has no member named ‘tlb_addr’
  224 |  gd->arch.tlb_addr = (unsigned long)&early_tlb;
      |          ^

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-03-12 10:58:55 +01:00
Patrick Delaunay
f49eb16c17 stm32mp: stm32prog: replace alias by serial device sequence number
The command "stm32prog serial <dev>" can directly use the device sequence
number of serial uclass as this sequence number is egual to alias when it
exist; this assumption simplify the code and avoid access to gd->fdt_blob
and the device tree parsing.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-03-11 17:41:17 +01:00
Patrick Delaunay
b9d5e3aa8f stm32mp: stm32prog: reactivate console and display serial error
When serial instance is not found in device tree, the console
should be enabled and the error should be indicated.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-03-11 17:41:17 +01:00
Patrick Delaunay
5a05af87ef stm32mp: stm32prog: Add CONFIG_CMD_STM32PROG_SERIAL and _USB
Add CONFIG_CMD_STM32PROG_SERIAL and CONFIG_CMD_STM32PROG_USB to
independently select the support of UART or USB communication for
STM32CubeProgrammer.

For serial boot over UART, user can deactivate CONFIG_CMD_STM32PROG_SERIAL
to use U-Boot console of binary loaded by UART (for board bring-up for
example).

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-03-11 17:41:17 +01:00
Patrick Delaunay
aad8414794 stm32mp: update the mmu configuration for SPL and prereloc
Overidde the weak function dram_bank_mmu_setup() to set the DDR
(preloc case) or the SYSRAM (in SPL case) executable before to enable
the MMU and configure DACR.

This weak function is called in dcache_enable/mmu_setup.

This patchs avoids a permission access issue when the DDR is marked
executable (by calling mmu_set_region_dcache_behaviour with
DCACHE_DEFAULT_OPTION) after MMU setup and domain access permission
activation with DACR in dcache_enable.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-03-02 15:53:37 -05:00
Simon Glass
401d1c4f5d common: Drop asm/global_data.h from common header
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2021-02-02 15:33:42 -05:00
Patrick Delaunay
eb653acd63 arm: stm32mp: migrate trace to log macro
Change debug and pr_ macro to log macro and define LOG_CATEGORY.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2021-01-13 09:52:58 +01:00
Simon Glass
65e25bea59 dm: Rename DM_GET_DRIVER() to DM_DRIVER_GET()
In the spirit of using the same base name for all of these related macros,
rename this to have the operation at the end. This is not widely used so
the impact is fairly small.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-01-05 12:26:35 -07:00
Patrick Delaunay
77c077e171 arm: stm32mp: correct the ALIGN macro usage
Correct the ALIGN macro usage in mmu_set_region_dcache_behaviour
call: the address must use ALIGN_DOWN and size can use ALIGN macro.

With STM32_SYSRAM_BASE=0x2FFC0000 and MMU_SECTION_SIZE=0x100000 for
STM32MP15x the computed address was 30000000 instead of 2ff00000.

Fixes: 43fe9d2fda ("stm32mp1: mmu_set_region_dcache_behaviour")
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-11-25 10:33:16 +01:00
Patrick Delaunay
67f9f11f19 stm32mp: limit size of cacheable DDR in pre-reloc stage
In pre-reloc stage, U-Boot marks cacheable the DDR limited by
the new config CONFIG_DDR_CACHEABLE_SIZE.

This patch allows to avoid any speculative access to DDR protected by
firewall and used by OP-TEE; the "no-map" reserved memory
node in DT are assumed after this limit:
STM32_DDR_BASE + DDR_CACHEABLE_SIZE.

Without security, in basic boot, the value is equal to STM32_DDR_SIZE.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-10-21 18:12:20 +02:00
Patrick Delaunay
cf8df34015 arm: stm32mp: cleanup test on eth_env_set_enetaddr result
Remove the unnecessary inversion on the eth_env_set_enetaddr() result which
only make complex the code of setup_mac_address() and display an invalid
value in the associated pr_err.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2020-09-09 14:19:12 +02:00
Patrick Delaunay
43fe9d2fda stm32mp1: mmu_set_region_dcache_behaviour
Since commit d877f8fd0f ("arm: provide a function for boards init
code to modify MMU virtual-physical map") the parameter of
mmu_set_region_dcache_behaviour need to be MMU_SECTION_SIZE
aligned.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-28 17:21:37 +02:00
Patrick Delaunay
97f7e39def arm: stm32mp: move dbgmcu_init call when DT is ready
As the dbgmcu_init use the function bsec_dbgswenable which is based
on the DM and DT, its call can't be done before the spl is initialized
(driver model, DT and malloc) in board_init_f::spl_early_init().

This function call is moved later in spl_board_init().

Fixes: bd3f60d29c ("arm: stm32mp: protect DBGMCU_IDC access with BSEC")

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-28 17:21:37 +02:00
Patrick Delaunay
bd3f60d29c arm: stm32mp: protect DBGMCU_IDC access with BSEC
As debugger must be totally closed on Sec closed chip,
the DBGMCU_IDC register is no more accessible (self
hosted debug is disabled with OTP).

This patch adds a function bsec_dbgswenable() to check
if the DBGMCU registers are available before to access them:
BSEC_DENABLE.DBGSWENABLE = self hosted debug status.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-07 16:01:23 +02:00
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
f7ae49fc4f common: Drop log.h from common header
Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:18 -04:00
Simon Glass
691d719db7 common: Drop init.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
90526e9fba common: Drop net.h from common header
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.

Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:31 -04:00
Patrick Delaunay
7e8471cae5 arm: stm32mp: activate data cache in SPL and before relocation
Activate the data cache in SPL and in U-Boot before relocation.

In arch_cpu_init(), the function early_enable_caches() sets the early
TLB, early_tlb[] located .init section, and set cacheable:
- for SPL, all the SYSRAM
- for U-Boot, all the DDR

After relocation, the function enable_caches() (called by board_r)
reconfigures the MMU with new TLB location (reserved in
board_f.c::reserve_mmu) and re-enable the data cache.

This patch allows to reduce the execution time, particularly
- for the device tree parsing in U-Boot pre-reloc stage
  (dm_extended_scan_fd =>dm_scan_fdt)
- in I2C timing computation in SPL (stm32_i2c_choose_solution())

For example, the result on STM32MP157C-DK2 board is:
   1,6s gain for trusted boot chain with TF-A
   2,2s gain for basic boot chain with SPL

For information, as TLB is added in .data section, the binary size
increased and the SPL load time by ROM code increased (30ms on DK2).

But early malloc can't be used for TLB because arch_cpu_init()
is executed before the early poll initialization done in spl_common_init()
called by spl_early_init() So it too late for this use case.
And if I initialize the MMU and the cache after this function it is
too late, as dm_init_and_scan and fdt parsing is also called in
spl_common_init().

And .BSS can be used in board_init_f(): only stack and global can use
before BSS init done in board_init_r().

So .data is the better solution without hardcoded location but if you
have size issue for SPL you can deactivate cache for SPL only
(with CONFIG_SPL_SYS_DCACHE_OFF).

Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-05-14 09:02:12 +02:00
Patrick Delaunay
7802a4495f stm32mp: add function get_cpu_dev
Add a function get_cpu_dev to get the DEV_ID present
in DBGMCU_IDC register.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-05-14 09:02:12 +02:00
Patrick Delaunay
b664a74537 board: stm32mp1: support boot from spi-nand
Manage BOOT_FLASH_SPINAND, with boot_device="spi-nand"
and treat this value in bootcmd_stm32mp.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-05-14 09:02:12 +02:00
Patrick Delaunay
654706be84 configs: stm32mp1: replace STM32MP1_TRUSTED by TFABOOT
Activate ARCH_SUPPORT_TFABOOT and replace the arch stm32mp
specific config CONFIG_STM32MP1_TRUSTED by the generic CONFIG_TFABOOT
introduced by the commit 535d76a121 ("armv8: layerscape: Add TFABOOT
support").
This config CONFIG_TFABOOT is activated for the trusted boot chain,
when U-Boot is loaded by TF-A.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-04-15 09:08:37 +02:00
Patrick Delaunay
050fed8a97 stm32mp1: add 800 MHz profile support
The STM32MP1 series is available in 3 different lines which are pin-to-pin
compatible:
- STM32MP157: Dual Cortex-A7 cores, Cortex-M4 core @ 209 MHz,
              3D GPU, DSI display interface and CAN FD
- STM32MP153: Dual Cortex-A7 cores, Cortex-M4 core @ 209 MHz
              and CAN FD
- STM32MP151: Single Cortex-A7 core, Cortex-M4 core @ 209 MHz

Each line comes with a security option (cryptography & secure boot)
& a Cortex-A frequency option :

- A : Cortex-A7 @ 650 MHz
- C : Secure Boot + HW Crypto + Cortex-A7 @ 650 MHz
- D : Cortex-A7 @ 800 MHz
- F : Secure Boot + HW Crypto + Cortex-A7 @ 800 MHz

This patch adds the support of STM32MP15xD and STM32MP15xF in U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:16:33 +01:00
Patrick Delaunay
ac5e4d8af8 arm: stm32mp: add function get_soc_name
Add a function get_soc_name to get a string with the full name
of the SOC "STM32MP15xxx Rev.x"

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:15:08 +01:00
Patrick Delaunay
7ae22d7278 arm: stm32mp: bsec: add permanent lock support in bsec driver
Add BSEC lock access (read / write) at 0xC0000000 offset of misc driver.
The write access only available for Trusted boot mode, based on new
SMC STM32_SMC_WRLOCK_OTP.

With the fuse command, the permanent lock status is accessed with
0x10000000 offset (0xC0000000 - 0x8000000 for OTP sense/program
divided by u32 size), for example:

Read lock status of fuse 57 (0x39)

  STM32MP> fuse sense 0 0x10000039 1

  Sensing bank 0:

  Word 0x10000039: 00000000

Set permanent lock of fuse 57 (0x39)

  STM32MP> fuse prog 0 0x10000039 1

  Sensing bank 0:

  Word 0x10000039: 00000000

WARNING: the OTP lock is updated only after reboot

WARING: Programming lock or fuses is an irreversible operation!
        This may brick your system.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24 14:05:35 +01:00
Patrick Delaunay
cf0818b477 stm32mp1: support of STM32MP15x Rev.Z
Add support for Rev.Z of STM32MP15x cpu.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-02-13 17:31:08 +01:00
Marek Vasut
e71b9a64a2 ARM: stm32: Allow overriding setup_mac_address()
Let board code override setup_mac_address(), which is useful e.g. if the
board derives the MAC address from another source, like an I2C EEPROM.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-01-17 11:44:42 +01:00
Fabien Dessenne
7bff971a14 stm32mp1: reset coprocessor status at cold boot
Reset ResourceTableAddress and CoprocessorState at cold boot, preserve
these values at standby wakeup.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-01-07 11:13:25 -05:00
Simon Glass
9edefc2776 common: Move some cache and MMU functions out of common.h
These functions belong in cpu_func.h. Another option would be cache.h
but that code uses driver model and we have not moved these cache
functions to use driver model. Since they are CPU-related it seems
reasonable to put them here.

Move them over.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:55 -05:00
Simon Glass
e7dcf5645f env: Drop environment.h header file where not needed
This header file is now only used by files that access internal
environment features. Drop it from various places where it is not needed.

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-08-11 16:43:41 -04:00
Simon Glass
9fb625ce05 env: Move env_set() to env.h
Move env_set() over to the new header file.

Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-08-11 16:43:41 -04:00
Patrick Delaunay
e609e131c1 stm32mp1: Fix warnings when compiling with W=1
This patch solves the following warnings:

arch/arm/mach-stm32mp/cpu.c:378:16: warning: comparison between signed
and unsigned integer expressions [-Wsign-compare]
   if (instance > ARRAY_SIZE(serial_addr))
                ^

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-07-12 11:50:54 +02:00
Patrick Delaunay
24cb4587f4 stm32mp1: export get_cpu_package function
Prepare update of package information update
in Linux device tree.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-07-12 11:18:53 +02:00
Manivannan Sadhasivam
bc9487d4ab arm: mach-stm32mp: Add newline to the MAC error message
Without newline, the error message appears for non prgrammed OTP boards
looks messsy. Hence add it to look more clean.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2019-06-06 17:40:12 +02:00
Patrick Delaunay
17f1f9b176 stm32mp1: Replace OTP read by SHADOW read
Replace STM32_BSEC_OTP() by STM32_BSEC_SHADOW() to
increase read performance.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
59a54e37a6 stm32mp1: basic boot: SPL enable access to GPIOZ bank
SPL need to set GPIOZ_SECCFGR = 0 to enable access to GPIOZ bank
(open security).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
8983ba2751 stm32mp1: align serial number on bootrom
Always use upper case for serial number.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
9a2ba2838b stm32mp1: support forced boot mode
The boot mode can be forced by key press
or by TAMP register, requested in kernel by syscon-reboot-mode

tamp: tamp@5c00a000 {
	compatible = "simple-bus", "syscon", "simple-mfd";
	reg = <0x5c00a000 0x400>;

	reboot-mode {
		compatible = "syscon-reboot-mode";
		offset = <0x150>; /* reg20 */
		mask = <0xff>;
		mode-normal = <0>;
		mode-fastboot = <0x1>;
		mode-recovery = <0x2>;
		mode-stm32cubeprogrammer = <0x3>;
		mode-ums_mmc0 = <0x10>;
		mode-ums_mmc1 = <0x11>;
		mode-ums_mmc2 = <0x12>;
	};
};

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
35d568f090 stm32mp1: update print_cpuinfo()
Display CPU part number and package information.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
7f63c1e687 stm32mp1: update boot mode management
- export the function get_bootmode() and reused it in spl code
- manage uart instance by alias (prepare v4.19 binding)
- solve issue on nand instance
- restore console for uart boot

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Patrick Delaunay
abf2678f0f stm32mp1: add trusted boot with TF-A
Add support of trusted boot, using TF-A as first stage bootloader,
The boot sequence is
  BootRom >=> TF-A.stm32 (clock & DDR) >=> U-Boot.stm32

The TF-A monitor provides secure monitor with support of SMC
- proprietary to manage secure devices (BSEC for example)
- PSCI for power

The same device tree is used for STMicroelectronics boards with
basic boot and with trusted boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-12 16:09:13 +02:00
Simon Glass
8729b1ae2c misc: Update read() and write() methods to return bytes xfered
At present these functions return 0 on success. For some devices we want
to know how many bytes were transferred. It seems useful to adjust the API
to be more like the POSIX read() and write() functions.

Update these two methods, a test and all users.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-11-20 19:14:22 -07:00
Patrick Delaunay
7f7deb0c72 stm32mp1: use OTP to configure MAC address and serial number
Use OTP57 and 58 for MAC address
- OTP57 = MAC address  bits [31:0]
- OTP58 = MAC address  bit  [47:32] stored in OTP  LSB's

Use manufacture information in OTP13 to OTP15 to build unique
chip id saved in env variable "serial#"
(used for USB device enumeration)

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-26 18:19:18 -04:00
Patrick Delaunay
320d266368 stm32mp1: Allow to activate CONFIG_DEBUG_UART
Add the needed information to enable the debug uart
to have printf before the serial driver probe
(so before probe for clock, pincontrol and reset drivers)

To enable the debug on uart 4 (default console):
+ CONFIG_DEBUG_UART=y
+ CONFIG_DEBUG_UART_STM32=y

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-26 18:19:18 -04:00