Add support of several MAC address in OTP (3 32bits OTP word for 2 MAC address) for SOCs in STM32MP13x family: STM32MP133 and STM32MP135.
Signed-off-by: Patrick Delaunay patrick.delaunay@foss.st.com ---
arch/arm/mach-stm32mp/cpu.c | 41 ++++++++++++------- .../arm/mach-stm32mp/include/mach/sys_proto.h | 1 + arch/arm/mach-stm32mp/stm32mp13x.c | 20 +++++++++ arch/arm/mach-stm32mp/stm32mp15x.c | 5 +++ 4 files changed, 52 insertions(+), 15 deletions(-)
diff --git a/arch/arm/mach-stm32mp/cpu.c b/arch/arm/mach-stm32mp/cpu.c index 240960ada4..855fc755fe 100644 --- a/arch/arm/mach-stm32mp/cpu.c +++ b/arch/arm/mach-stm32mp/cpu.c @@ -290,16 +290,18 @@ __weak int setup_mac_address(void) { int ret; int i; - u32 otp[2]; + u32 otp[3]; uchar enetaddr[6]; struct udevice *dev; + int nb_eth, nb_otp, index;
if (!IS_ENABLED(CONFIG_NET)) return 0;
- /* MAC already in environment */ - if (eth_env_get_enetaddr("ethaddr", enetaddr)) - return 0; + nb_eth = get_eth_nb(); + + /* 6 bytes for each MAC addr and 4 bytes for each OTP */ + nb_otp = DIV_ROUND_UP(6 * nb_eth, 4);
ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(stm32mp_bsec), @@ -307,22 +309,31 @@ __weak int setup_mac_address(void) if (ret) return ret;
- ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_MAC), - otp, sizeof(otp)); + ret = misc_read(dev, STM32_BSEC_SHADOW(BSEC_OTP_MAC), otp, 4 * nb_otp); if (ret < 0) return ret;
- for (i = 0; i < 6; i++) - enetaddr[i] = ((uint8_t *)&otp)[i]; + for (index = 0; index < nb_eth; index++) { + /* MAC already in environment */ + if (eth_env_get_enetaddr_by_index("eth", index, enetaddr)) + continue; + + for (i = 0; i < 6; i++) + enetaddr[i] = ((uint8_t *)&otp)[i + 6 * index];
- if (!is_valid_ethaddr(enetaddr)) { - log_err("invalid MAC address in OTP %pM\n", enetaddr); - return -EINVAL; + if (!is_valid_ethaddr(enetaddr)) { + log_err("invalid MAC address %d in OTP %pM\n", + index, enetaddr); + return -EINVAL; + } + log_debug("OTP MAC address %d = %pM\n", index, enetaddr); + ret = eth_env_set_enetaddr_by_index("eth", index, enetaddr); + if (ret) { + log_err("Failed to set mac address %pM from OTP: %d\n", + enetaddr, ret); + return ret; + } } - log_debug("OTP MAC address = %pM\n", enetaddr); - ret = eth_env_set_enetaddr("ethaddr", enetaddr); - if (ret) - log_err("Failed to set mac address %pM from OTP: %d\n", enetaddr, ret);
return 0; } diff --git a/arch/arm/mach-stm32mp/include/mach/sys_proto.h b/arch/arm/mach-stm32mp/include/mach/sys_proto.h index 829b3feebf..4b564e86dc 100644 --- a/arch/arm/mach-stm32mp/include/mach/sys_proto.h +++ b/arch/arm/mach-stm32mp/include/mach/sys_proto.h @@ -64,6 +64,7 @@ void get_soc_name(char name[SOC_NAME_SIZE]); /* return boot mode */ u32 get_bootmode(void);
+int get_eth_nb(void); int setup_mac_address(void);
/* board power management : configure vddcore according OPP */ diff --git a/arch/arm/mach-stm32mp/stm32mp13x.c b/arch/arm/mach-stm32mp/stm32mp13x.c index 38961310dc..8a56f381ce 100644 --- a/arch/arm/mach-stm32mp/stm32mp13x.c +++ b/arch/arm/mach-stm32mp/stm32mp13x.c @@ -51,6 +51,26 @@ u32 get_cpu_type(void) return (get_cpu_dev() << 16) | get_cpu_rpn(); }
+int get_eth_nb(void) +{ + int nb_eth = 2; + + switch (get_cpu_type()) { + case CPU_STM32MP131Dxx: + fallthrough; + case CPU_STM32MP131Cxx: + fallthrough; + case CPU_STM32MP131Axx: + nb_eth = 1; + break; + default: + nb_eth = 2; + break; + } + + return nb_eth; +} + void get_soc_name(char name[SOC_NAME_SIZE]) { char *cpu_s, *cpu_r; diff --git a/arch/arm/mach-stm32mp/stm32mp15x.c b/arch/arm/mach-stm32mp/stm32mp15x.c index 800fad2f43..a093e6163e 100644 --- a/arch/arm/mach-stm32mp/stm32mp15x.c +++ b/arch/arm/mach-stm32mp/stm32mp15x.c @@ -247,6 +247,11 @@ u32 get_cpu_type(void) return (get_cpu_dev() << 16) | get_cpu_rpn(); }
+int get_eth_nb(void) +{ + return 1; +} + /* Get Package options from OTP */ u32 get_cpu_package(void) {