diff options
Diffstat (limited to 'board/dhelectronics/dh_stm32mp1/board.c')
| -rw-r--r-- | board/dhelectronics/dh_stm32mp1/board.c | 66 |
1 files changed, 65 insertions, 1 deletions
diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c index acfdf2e87c0..4f4f537fee5 100644 --- a/board/dhelectronics/dh_stm32mp1/board.c +++ b/board/dhelectronics/dh_stm32mp1/board.c @@ -3,7 +3,6 @@ * Copyright (C) 2018, STMicroelectronics - All Rights Reserved */ -#include <common.h> #include <adc.h> #include <log.h> #include <net.h> @@ -38,6 +37,7 @@ #include <power/regulator.h> #include <remoteproc.h> #include <reset.h> +#include <spl.h> #include <syscon.h> #include <usb.h> #include <usb/dwc2_udc.h> @@ -684,12 +684,69 @@ void board_quiesce_devices(void) #endif } +static void dh_stm32_ks8851_fixup(void *blob) +{ + struct gpio_desc ks8851intrn; + bool compatible = false; + int ks8851intrn_value; + const char *prop; + ofnode node; + int idx = 0; + int offset; + int ret; + + /* Do nothing if not STM32MP15xx DHCOM SoM */ + while ((prop = fdt_stringlist_get(blob, 0, "compatible", idx++, NULL))) { + if (!strstr(prop, "dhcom-som")) + continue; + compatible = true; + break; + } + + if (!compatible) + return; + + /* + * Read state of INTRN pull up resistor, if this pull up is populated, + * KS8851-16MLL is populated as well and should be enabled, otherwise + * it should be disabled. + */ + node = ofnode_path("/config"); + if (!ofnode_valid(node)) + return; + + ret = gpio_request_by_name_nodev(node, "dh,mac-coding-gpios", 0, + &ks8851intrn, GPIOD_IS_IN); + if (ret) + return; + + ks8851intrn_value = dm_gpio_get_value(&ks8851intrn); + + dm_gpio_free(NULL, &ks8851intrn); + + /* Set the 'status' property into KS8851-16MLL DT node. */ + offset = fdt_path_offset(blob, "ethernet1"); + ret = fdt_node_check_compatible(blob, offset, "micrel,ks8851-mll"); + if (ret) /* Not compatible */ + return; + + /* Add a bit of extra space for new 'status' property */ + ret = fdt_shrink_to_minimum(blob, 4096); + if (!ret) + return; + + fdt_setprop_string(blob, offset, "status", + ks8851intrn_value ? "okay" : "disabled"); +} + #if defined(CONFIG_OF_BOARD_SETUP) int ft_board_setup(void *blob, struct bd_info *bd) { const char *buck3path = "/soc/i2c@5c002000/stpmic@33/regulators/buck3"; int buck3off, ret, uv; + dh_stm32_ks8851_fixup(blob); + ret = board_get_regulator_buck3_nvm_uv_av96(&uv); if (ret) /* Not Avenger96 board, do not patch Buck3 in DT. */ return 0; @@ -710,6 +767,13 @@ int ft_board_setup(void *blob, struct bd_info *bd) } #endif +#if defined(CONFIG_SPL_BUILD) +void spl_perform_fixups(struct spl_image_info *spl_image) +{ + dh_stm32_ks8851_fixup(spl_image_fdt_addr(spl_image)); +} +#endif + static void board_copro_image_process(ulong fw_image, size_t fw_size) { int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */ |