18c2ecf20Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0-only 28c2ecf20Sopenharmony_cimenu "LPDDR & LPDDR2 PCM memory drivers" 38c2ecf20Sopenharmony_ci depends on MTD 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ciconfig MTD_LPDDR 68c2ecf20Sopenharmony_ci tristate "Support for LPDDR flash chips" 78c2ecf20Sopenharmony_ci select MTD_QINFO_PROBE 88c2ecf20Sopenharmony_ci help 98c2ecf20Sopenharmony_ci This option enables support of LPDDR (Low power double data rate) 108c2ecf20Sopenharmony_ci flash chips. Synonymous with Mobile-DDR. It is a new standard for 118c2ecf20Sopenharmony_ci DDR memories, intended for battery-operated systems. 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ciconfig MTD_QINFO_PROBE 148c2ecf20Sopenharmony_ci depends on MTD_LPDDR 158c2ecf20Sopenharmony_ci tristate "Detect flash chips by QINFO probe" 168c2ecf20Sopenharmony_ci help 178c2ecf20Sopenharmony_ci Device Information for LPDDR chips is offered through the Overlay 188c2ecf20Sopenharmony_ci Window QINFO interface, permits software to be used for entire 198c2ecf20Sopenharmony_ci families of devices. This serves similar purpose of CFI on legacy 208c2ecf20Sopenharmony_ci Flash products 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ciconfig MTD_LPDDR2_NVM 238c2ecf20Sopenharmony_ci # ARM dependency is only for writel_relaxed() 248c2ecf20Sopenharmony_ci depends on MTD && ARM 258c2ecf20Sopenharmony_ci tristate "Support for LPDDR2-NVM flash chips" 268c2ecf20Sopenharmony_ci help 278c2ecf20Sopenharmony_ci This option enables support of PCM memories with a LPDDR2-NVM 288c2ecf20Sopenharmony_ci (Low power double data rate 2) interface. 298c2ecf20Sopenharmony_ci 308c2ecf20Sopenharmony_ciendmenu 31