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authorpekon gupta <pekon@ti.com>2014-07-22 16:03:24 +0530
committerTom Rini <trini@ti.com>2014-08-25 10:48:12 -0400
commit9352697aa060e9b1b5d891e4490fdfa6f5ba6114 (patch)
tree3b99b784f58c2f384f4fe18e562b6911d8f130f9 /arch/arm/include/asm/arch-keystone
parent54a97d2849979acd84a0475486edf0d0c18e47c7 (diff)
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blackbird-obmc-uboot-9352697aa060e9b1b5d891e4490fdfa6f5ba6114.zip
board/ti/dra7xx: add support for parallel NOR
This patch adds support for parallel NOR device (S29GL512S10) present on J6-EVM. The Flash device is connected to GPMC controller on chip-select[0] and accessed as memory-mapped device. It has data-witdh=x16, capacity-64MBytes(512Mbits) and is CFI compatible. As multiple devices are share GPMC pins on this board, so following board settings are required to detect NOR device: SW5.1 (NAND_BOOTn) = OFF (logic-1) SW5.2 (NOR_BOOTn) = ON (logic-0) /* Active-low */ SW5.3 (eMMC_BOOTn) = OFF (logic-1) SW5.4 (QSPI_BOOTn) = OFF (logic-1) And also set appropriate SYSBOOT configurations: SW3.1 (SYSBOOT[ 8])= ON (logic-1) /* selects SYS_CLK1 speed */ SW3.2 (SYSBOOT[ 9])= OFF (logic-0) /* selects SYS_CLK1 speed */ SW3.3 (SYSBOOT[10])= ON (logic-1) /* wait-pin monitoring = enabled */ SW3.4 (SYSBOOT[11])= OFF (logic-0) /* device type: Non Muxed */ SW3.5 (SYSBOOT[12])= OFF (logic-0) /* device type: Non Muxed */ SW3.6 (SYSBOOT[13])= ON (logic-1) /* device bus-width: 1(x16) */ SW3.7 (SYSBOOT[14])= OFF (logic-0) /* reserved */ SW3.8 (SYSBOOT[15])= ON (logic-1) /* reserved */ Also, following changes are required to enable NOR Flash support in dra7xx_evm board profile:
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