From 212f96f6bd968f4359fff188d44157125cf24447 Mon Sep 17 00:00:00 2001 From: "Kipisz, Steven" Date: Wed, 24 Feb 2016 12:30:58 -0600 Subject: [PATCH] board: ti: AM57xx: Add detection logic for AM57xx-evm Current AM57xx evm supports both BeagleBoard-X15 (http://beagleboard.org/x15) and AM57xx EVM (http://www.ti.com/tool/tmdxevm5728). The AM572x EValuation Module(EVM) provides an affordable platform to quickly start evaluation of Sitara. ARM Cortex-A15 AM57x Processors (AM5728, AM5726, AM5718, AM5716) and accelerate development for HMI, machine vision, networking, medical imaging and many other industrial applications. This EVM is based on the same BeagleBoard-X15 Chassis and adds mPCIe, mSATA, LCD, touchscreen, Camera, push button and TI's wlink8 offering. Since the EEPROM contents are compatible between the BeagleBoard-X15 and the AM57xx-evm, we add support for the detection logic to enable support for various user programmable scripting capability. NOTE: U-boot configuration is currently a superset of AM57xx evm and BeagleBoard-X15 and no additional configuration tweaking is needed. This change also sets up the stage for future support of TI AM57xx EVMs to the same base bootloader build. Signed-off-by: Steve Kipisz Signed-off-by: Lokesh Vutla Signed-off-by: Nishanth Menon Reviewed-by: Tom Rini --- arch/arm/cpu/armv7/omap5/Kconfig | 1 + board/ti/am57xx/Kconfig | 2 + board/ti/am57xx/board.c | 70 ++++++++++++++++++++++++++++++- include/configs/am57xx_evm.h | 4 ++ include/configs/ti_omap5_common.h | 2 + 5 files changed, 78 insertions(+), 1 deletion(-) diff --git a/arch/arm/cpu/armv7/omap5/Kconfig b/arch/arm/cpu/armv7/omap5/Kconfig index bfa264eccc..f265b34b63 100644 --- a/arch/arm/cpu/armv7/omap5/Kconfig +++ b/arch/arm/cpu/armv7/omap5/Kconfig @@ -15,6 +15,7 @@ config TARGET_DRA7XX_EVM config TARGET_BEAGLE_X15 bool "BeagleBoard X15" + select TI_I2C_BOARD_DETECT endchoice diff --git a/board/ti/am57xx/Kconfig b/board/ti/am57xx/Kconfig index bdb779511b..17745ff7ea 100644 --- a/board/ti/am57xx/Kconfig +++ b/board/ti/am57xx/Kconfig @@ -9,4 +9,6 @@ config SYS_VENDOR config SYS_CONFIG_NAME default "am57xx_evm" +source "board/ti/common/Kconfig" + endif diff --git a/board/ti/am57xx/board.c b/board/ti/am57xx/board.c index 042f9ab196..d712ab0571 100644 --- a/board/ti/am57xx/board.c +++ b/board/ti/am57xx/board.c @@ -30,8 +30,12 @@ #include #include +#include "../common/board_detect.h" #include "mux_data.h" +#define board_is_x15() board_ti_is("BBRDX15_") +#define board_is_am572x_evm() board_ti_is("AM572PM_") + #ifdef CONFIG_DRIVER_TI_CPSW #include #endif @@ -41,8 +45,10 @@ DECLARE_GLOBAL_DATA_PTR; /* GPIO 7_11 */ #define GPIO_DDR_VTT_EN 203 +#define SYSINFO_BOARD_NAME_MAX_LEN 45 + const struct omap_sysinfo sysinfo = { - "Board: BeagleBoard x15\n" + "Board: UNKNOWN(BeagleBoard X15?) REV UNKNOWN\n" }; static const struct dmm_lisa_map_regs beagle_x15_lisa_regs = { @@ -246,6 +252,66 @@ struct vcores_data beagle_x15_volts = { .iva.pmic = &tps659038, }; +#ifdef CONFIG_SPL_BUILD +/* No env to setup for SPL */ +static inline void setup_board_eeprom_env(void) { } + +/* Override function to read eeprom information */ +void do_board_detect(void) +{ + int rc; + + rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS, + CONFIG_EEPROM_CHIP_ADDRESS); + if (rc) + printf("ti_i2c_eeprom_init failed %d\n", rc); +} + +#else /* CONFIG_SPL_BUILD */ + +/* Override function to read eeprom information: actual i2c read done by SPL*/ +void do_board_detect(void) +{ + char *bname = NULL; + int rc; + + rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS, + CONFIG_EEPROM_CHIP_ADDRESS); + if (rc) + printf("ti_i2c_eeprom_init failed %d\n", rc); + + if (board_is_x15()) + bname = "BeagleBoard X15"; + else if (board_is_am572x_evm()) + bname = "AM572x EVM"; + + if (bname) + snprintf(sysinfo.board_string, SYSINFO_BOARD_NAME_MAX_LEN, + "Board: %s REV %s\n", bname, board_ti_get_rev()); +} + +static void setup_board_eeprom_env(void) +{ + char *name = "beagle_x15"; + int rc; + + rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS, + CONFIG_EEPROM_CHIP_ADDRESS); + if (rc) + goto invalid_eeprom; + + if (board_is_am572x_evm()) + name = "am57xx_evm"; + else + printf("Unidentified board claims %s in eeprom header\n", + board_ti_get_name()); + +invalid_eeprom: + set_board_info_env(name); +} + +#endif /* CONFIG_SPL_BUILD */ + void hw_data_init(void) { *prcm = &dra7xx_prcm; @@ -265,6 +331,8 @@ int board_init(void) int board_late_init(void) { init_sata(0); + setup_board_eeprom_env(); + /* * DEV_CTRL.DEV_ON = 1 please - else palmas switches off in 8 seconds * This is the POWERHOLD-in-Low behavior. diff --git a/include/configs/am57xx_evm.h b/include/configs/am57xx_evm.h index 6308cab8e6..1fffdb18fb 100644 --- a/include/configs/am57xx_evm.h +++ b/include/configs/am57xx_evm.h @@ -88,4 +88,8 @@ #define CONFIG_SYS_SCSI_MAX_DEVICE (CONFIG_SYS_SCSI_MAX_SCSI_ID * \ CONFIG_SYS_SCSI_MAX_LUN) +/* EEPROM */ +#define CONFIG_EEPROM_CHIP_ADDRESS 0x50 +#define CONFIG_EEPROM_BUS_ADDRESS 0 + #endif /* __CONFIG_AM57XX_EVM_H */ diff --git a/include/configs/ti_omap5_common.h b/include/configs/ti_omap5_common.h index d164e6abd4..d373cbc44a 100644 --- a/include/configs/ti_omap5_common.h +++ b/include/configs/ti_omap5_common.h @@ -117,6 +117,8 @@ "setenv fdtfile dra72-evm.dtb; fi;" \ "if test $board_name = beagle_x15; then " \ "setenv fdtfile am57xx-beagle-x15.dtb; fi;" \ + "if test $board_name = am57xx_evm; then " \ + "setenv fdtfile am57xx-beagle-x15.dtb; fi;" \ "if test $fdtfile = undefined; then " \ "echo WARNING: Could not determine device tree to use; fi; \0" \ "loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile};\0" \ -- 2.39.5