The UM arch doesn't have HAS_IOMEM=y, so the build fails because the functions memcpy_fromio and memcpy_toio are not defined anymore. These functions are only build for targets which have HAS_IOMEM=y or INDIRECT_IOMEM=y. So, depend on either of the two. Reviewed-by: Yann Sionneau <ysionneau@xxxxxxxxxxxxx> Signed-off-by: Julian Vetter <jvetter@xxxxxxxxxxxxx> --- Changes for v8: - New patch --- drivers/mtd/chips/Kconfig | 4 ++++ drivers/mtd/lpddr/Kconfig | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig index 19726ebd973d..78afe7ccf005 100644 --- a/drivers/mtd/chips/Kconfig +++ b/drivers/mtd/chips/Kconfig @@ -4,6 +4,7 @@ menu "RAM/ROM/Flash chip drivers" config MTD_CFI tristate "Detect flash chips by Common Flash Interface (CFI) probe" + depends on HAS_IOMEM || INDIRECT_IOMEM select MTD_GEN_PROBE select MTD_CFI_UTIL help @@ -16,6 +17,7 @@ config MTD_CFI config MTD_JEDECPROBE tristate "Detect non-CFI AMD/JEDEC-compatible flash chips" + depends on HAS_IOMEM || INDIRECT_IOMEM select MTD_GEN_PROBE select MTD_CFI_UTIL help @@ -211,12 +213,14 @@ config MTD_CFI_UTIL config MTD_RAM tristate "Support for RAM chips in bus mapping" + depends on HAS_IOMEM || INDIRECT_IOMEM help This option enables basic support for RAM chips accessed through a bus mapping driver. config MTD_ROM tristate "Support for ROM chips in bus mapping" + depends on HAS_IOMEM || INDIRECT_IOMEM help This option enables basic support for ROM chips accessed through a bus mapping driver. diff --git a/drivers/mtd/lpddr/Kconfig b/drivers/mtd/lpddr/Kconfig index 0395aa6b68f1..f35dd8052abc 100644 --- a/drivers/mtd/lpddr/Kconfig +++ b/drivers/mtd/lpddr/Kconfig @@ -4,6 +4,7 @@ menu "LPDDR & LPDDR2 PCM memory drivers" config MTD_LPDDR tristate "Support for LPDDR flash chips" + depends on HAS_IOMEM || INDIRECT_IOMEM select MTD_QINFO_PROBE help This option enables support of LPDDR (Low power double data rate) -- 2.34.1
