kernel/linux.git/arch/powerpc/boot, branch v6.1.168

powerpc/addnote: Fix overflow on 32-bit builds

2026-01-11T14:18:48+00:00

[ Upstream commit 825ce89a3ef17f84cf2c0eacfa6b8dc9fd11d13f ] The PUT_64[LB]E() macros need to cast the value to unsigned long long like the GET_64[LB]E() macros. Caused lots of warnings when compiled on 32-bit, and clobbered addresses (36-bit P4080). Signed-off-by: Ben Collins Reviewed-by: Christophe Leroy Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/2025042122-mustard-wrasse-694572@boujee-and-buff Signed-off-by: Sasha Levin

powerpc/boot: Only free if realloc() succeeds

2024-08-29T15:30:37+00:00

[ Upstream commit f2d5bccaca3e8c09c9b9c8485375f7bdbb2631d2 ] simple_realloc() frees the original buffer (ptr) even if the reallocation failed. Fix it to behave like standard realloc() and only free the original buffer if the reallocation succeeded. Signed-off-by: Michael Ellerman Link: https://msgid.link/20240229115149.749264-1-mpe@ellerman.id.au Signed-off-by: Sasha Levin

powerpc/boot: Handle allocation failure in simple_realloc()

2024-08-29T15:30:37+00:00

[ Upstream commit 69b0194ccec033c208b071e019032c1919c2822d ] simple_malloc() will return NULL when there is not enough memory left. Check pointer 'new' before using it to copy the old data. Signed-off-by: Li zeming [mpe: Reword subject, use change log from Christophe] Signed-off-by: Michael Ellerman Link: https://msgid.link/20221219021816.3012-1-zeming@nfschina.com Signed-off-by: Sasha Levin

powerpc/boot: Disable power10 features after BOOTAFLAGS assignment

2023-09-13T07:42:20+00:00

[ Upstream commit 2b694fc96fe33a7c042e3a142d27d945c8c668b0 ] When building the boot wrapper assembly files with clang after commit 648a1783fe25 ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU"), the following warnings appear for each file built: '-prefixed' is not a recognized feature for this target (ignoring feature) '-pcrel' is not a recognized feature for this target (ignoring feature) While it is questionable whether or not LLVM should be emitting a warning when passed negative versions of code generation flags when building assembly files (since it does not emit a warning for the altivec and vsx flags), it is easy enough to work around this by just moving the disabled flags to BOOTCFLAGS after the assignment of BOOTAFLAGS, so that they are not added when building assembly files. Do so to silence the warnings. Fixes: 648a1783fe25 ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU") Link: https://github.com/ClangBuiltLinux/linux/issues/1839 Reviewed-by: Nicholas Piggin Signed-off-by: Nathan Chancellor Signed-off-by: Michael Ellerman Link: https://msgid.link/20230427-remove-power10-args-from-boot-aflags-clang-v1-1-9107f7c943bc@kernel.org Signed-off-by: Sasha Levin

powerpc: dts: turris1x.dts: Fix PCIe MEM size for pci2 node

2023-07-19T14:22:04+00:00

[ Upstream commit abaa02fc944f2f9f2c2e1925ddaceaf35c48528c ] Freescale PCIe controllers on their PCIe Root Ports do not have any mappable PCI BAR allocate from PCIe MEM. Information about 1MB window on BAR0 of PCIe Root Port was misleading because Freescale PCIe controllers have at BAR0 position different register PEXCSRBAR, and kernel correctly skipts BAR0 for these Freescale PCIe Root Ports. So update comment about P2020 PCIe Root Port and decrease PCIe MEM size required for PCIe controller (pci2 node) on which is on-board xHCI controller. lspci confirms that on P2020 PCIe Root Port is no PCI BAR and /proc/iomem sees that only c0000000-c000ffff and c0010000-c0011fff ranges are used. Fixes: 54c15ec3b738 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers") Signed-off-by: Pali Rohár Signed-off-by: Michael Ellerman Link: https://msgid.link/20230505172818.18416-1-pali@kernel.org Signed-off-by: Sasha Levin

powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU

2023-05-11T14:02:59+00:00

commit 648a1783fe2551f5a091c9a5f8f463cb2cbf8745 upstream. -mcpu=power10 will generate prefixed and pcrel code by default, which we do not support. The general kernel disables these with cflags, but those were missed for the boot wrapper. Fixes: 4b2a9315f20d ("powerpc/64s: POWER10 CPU Kconfig build option") Cc: stable@vger.kernel.org # v6.1+ Reported-by: Danny Tsen Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://msgid.link/20230407040909.230998-1-npiggin@gmail.com Signed-off-by: Greg Kroah-Hartman

powerpc/boot: Don't always pass -mcpu=powerpc when building 32-bit uImage

2023-03-22T12:34:03+00:00

commit ff7c76f66d8bad4e694c264c789249e1d3a8205d upstream. When CONFIG_TARGET_CPU is specified then pass its value to the compiler -mcpu option. This fixes following build error when building kernel with powerpc e500 SPE capable cross compilers: BOOTAS arch/powerpc/boot/crt0.o powerpc-linux-gnuspe-gcc: error: unrecognized argument in option ‘-mcpu=powerpc’ powerpc-linux-gnuspe-gcc: note: valid arguments to ‘-mcpu=’ are: 8540 8548 native make[1]: *** [arch/powerpc/boot/Makefile:231: arch/powerpc/boot/crt0.o] Error 1 Similar change was already introduced for the main powerpc Makefile in commit 446cda1b21d9 ("powerpc/32: Don't always pass -mcpu=powerpc to the compiler"). Fixes: 40a75584e526 ("powerpc/boot: Build wrapper for an appropriate CPU") Cc: stable@vger.kernel.org # v5.19+ Signed-off-by: Pali Rohár Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/2ae3ae5887babfdacc34435bff0944b3f336100a.1674632329.git.christophe.leroy@csgroup.eu Signed-off-by: Greg Kroah-Hartman

powerpc: dts: t1040rdb: fix compatible string for Rev A boards

2023-03-17T07:50:22+00:00

[ Upstream commit ae44f1c9d1fc54aeceb335fedb1e73b2c3ee4561 ] It looks like U-Boot fails to start the kernel properly when the compatible string of the board isn't fsl,T1040RDB, so stop overriding it from the rev-a.dts. Fixes: 5ebb74749202 ("powerpc: dts: t1040rdb: fix ports names for Seville Ethernet switch") Signed-off-by: Vladimir Oltean Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

powerpc: dts: t208x: Disable 10G on MAC1 and MAC2

2023-02-25T10:25:40+00:00

[ Upstream commit 8d8bee13ae9e316443c6666286360126a19c8d94 ] There aren't enough resources to run these ports at 10G speeds. Disable 10G for these ports, reverting to the previous speed. Fixes: 36926a7d70c2 ("powerpc: dts: t208x: Mark MAC1 and MAC2 as 10G") Reported-by: Camelia Alexandra Groza Signed-off-by: Sean Anderson Reviewed-by: Camelia Groza Tested-by: Camelia Groza Link: https://lore.kernel.org/r/20221216172937.2960054-1-sean.anderson@seco.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

powerpc: dts: t208x: Mark MAC1 and MAC2 as 10G

2023-02-25T10:25:38+00:00

[ Upstream commit 36926a7d70c2d462fca1ed85bfee000d17fd8662 ] On the T208X SoCs, MAC1 and MAC2 support XGMII. Add some new MAC dtsi fragments, and mark the QMAN ports as 10G. Fixes: da414bb923d9 ("powerpc/mpc85xx: Add FSL QorIQ DPAA FMan support to the SoC device tree(s)") Signed-off-by: Sean Anderson Signed-off-by: David S. Miller Signed-off-by: Sasha Levin