From 212f96f6bd968f4359fff188d44157125cf24447 Mon Sep 17 00:00:00 2001 From: "Kipisz, Steven" Date: Wed, 24 Feb 2016 12:30:58 -0600 Subject: 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 --- board/ti/am57xx/Kconfig | 2 ++ board/ti/am57xx/board.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 71 insertions(+), 1 deletion(-) (limited to 'board') 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. -- cgit v1.2.1