Hi Vaibhav/Sanjeev, Please review this which I plan to submit today.
It almost same as submited on lo. Regards, Ajay Added function to differentiate between the OMAP3EVM revisions. The chip-id of the ethernet PHY is being used for this purpose. Rev A to D : 0x01150000 Rev >= E : 0x92200000 Signed-off-by: Vaibhav Hiremath <hvaib...@ti.com> Signed-off-by: Sanjeev Premi <pr...@ti.com> Signed-off-by: Ajay Kumar Gupta <ajay.gu...@ti.com> --- Created against denx's u-boot master branch. board/ti/evm/evm.c | 29 +++++++++++++++++++++++++++++ board/ti/evm/evm.h | 14 ++++++++++++++ 2 files changed, 43 insertions(+), 0 deletions(-) diff --git a/board/ti/evm/evm.c b/board/ti/evm/evm.c index 0718a08..6eacc00 100644 --- a/board/ti/evm/evm.c +++ b/board/ti/evm/evm.c @@ -37,6 +37,33 @@ #include <asm/mach-types.h> #include "evm.h" +static u8 omap3_evm_version; + +u8 get_omap3_evm_rev(void) +{ + return omap3_evm_version; +} + +static void omap3_evm_get_revision(void) +{ + unsigned int smsc_id; + + /* Ethernet PHY ID is stored at ID_REV register */ + smsc_id = readl(CONFIG_SMC911X_BASE + 0x50) & 0xFFFF0000; + printf("Read back SMSC id 0x%x\n", smsc_id); + + switch (smsc_id) { + /* SMSC9115 chipset */ + case 0x01150000: + omap3_evm_version = OMAP3EVM_BOARD_GEN_1; + break; + /* SMSC 9220 chipset */ + case 0x92200000: + default: + omap3_evm_version = OMAP3EVM_BOARD_GEN_2; + } +} + /* * Routine: board_init * Description: Early hardware init. @@ -45,6 +72,8 @@ int board_init(void) { DECLARE_GLOBAL_DATA_PTR; + omap3_evm_get_revision(); + gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ /* board id for Linux */ gd->bd->bi_arch_number = MACH_TYPE_OMAP3EVM; diff --git a/board/ti/evm/evm.h b/board/ti/evm/evm.h index 37da29d..e2581f6 100644 --- a/board/ti/evm/evm.h +++ b/board/ti/evm/evm.h @@ -33,6 +33,20 @@ const omap3_sysinfo sysinfo = { #endif }; +/* + * OMAP35x EVM revision + * Run time detection of EVM revision is done by reading Ethernet + * PHY ID - + * GEN_1 = 0x01150000 + * GEN_2 = 0x92200000 + */ +enum { + OMAP3EVM_BOARD_GEN_1 = 0, /* EVM Rev between A - D */ + OMAP3EVM_BOARD_GEN_2, /* EVM Rev >= Rev E */ +}; + +u8 get_omap3_evm_rev(void); + static void setup_net_chip(void); /* -- 1.6.2.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot