armv8: ls2080a: remove obsolete stream ID partitioning support
Subsystems (2)
PATCH v6 1/5 armv8: ls2080a: remove obsolete stream ID partitioning support
From: Stuart Yoder <[email protected]>
Remove stream ID partitioning support that has been made obsolete by upstream device tree bindings that specify how representing how PCI requester IDs are mapped to MSI specifiers and SMMU stream IDs.
---
-v6: no changes
arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 113 ------------------------------- drivers/pci/pcie_layerscape.c | 70 ------------------- 2 files changed, 183 deletions(-)
arch/arm/cpu/armv8/fsl-layerscape/fdt.c +0 -113
@@ -70,115 +70,6 @@ void ft_fixup_cpu(void *blob) }#endif -/* -* the burden is on the the caller to not request a count -* exceeding the bounds of the stream_ids[] array -*/ -void alloc_stream_ids (int start_id,int count,u32 *stream_ids,int max_cnt) -{ -int i; - -if (count > max_cnt) { -printf ("\n%s: ERROR: max per-device stream ID count exceed\n" , - __func__); -return ; - } - -for (i =0 ; i < count; i++) - stream_ids[i] = start_id++; -} - -/* -* This function updates the mmu-masters property on the SMMU -* node as per the SMMU binding-- phandle and list of stream IDs -* for each MMU master. -*/ -void append_mmu_masters (void *blob,const char *smmu_path, -const char *master_name,u32 *stream_ids,int count) -{ -u32 phandle; -int smmu_nodeoffset; -int master_nodeoffset; -int i; - -/* get phandle of mmu master device */ - master_nodeoffset =fdt_path_offset (blob, master_name); -if (master_nodeoffset <0 ) { -printf ("\n%s: ERROR: master not found\n" , __func__); -return ; - } - phandle =fdt_get_phandle (blob, master_nodeoffset); -if (!phandle) {/* if master has no phandle, create one */ - phandle =fdt_create_phandle (blob, master_nodeoffset); -if (!phandle) { -printf ("\n%s: ERROR: unable to create phandle\n" , - __func__); -return ; - } - } - -/* append it to mmu-masters */ - smmu_nodeoffset =fdt_path_offset (blob, smmu_path); -if (fdt_appendprop_u32 (blob, smmu_nodeoffset,"mmu-masters" , - phandle) <0 ) { -printf ("\n%s: ERROR: unable to update SMMU node\n" , __func__); -return ; - } - -/* for each stream ID, append to mmu-masters */ -for (i =0 ; i < count; i++) { -fdt_appendprop_u32 (blob, smmu_nodeoffset,"mmu-masters" , - stream_ids[i]); - } - -/* fix up #stream-id-cells with stream ID count */ -if (fdt_setprop_u32 (blob, master_nodeoffset,"#stream-id-cells" , - count) <0 ) -printf ("\n%s: ERROR: unable to update #stream-id-cells\n" , - __func__); -} - - -/* -* The info below summarizes how streamID partitioning works -* for ls2080a and how it is conveyed to the OS via the device tree. -* -* -non-PCI legacy, platform devices (USB, SD/MMC, SATA, DMA) -* -all legacy devices get a unique ICID assigned and programmed in -* their AMQR registers by u-boot -* -u-boot updates the hardware device tree with streamID properties -* for each platform/legacy device (smmu-masters property) -* -* -PCIe -* -for each PCI controller that is active (as per RCW settings), -* u-boot will allocate a range of ICID and convey that to Linux via -* the device tree (smmu-masters property) -* -* -DPAA2 -* -u-boot will allocate a range of ICIDs to be used by the Management -* Complex for containers and will set these values in the MC DPC image. -* -the MC is responsible for allocating and setting up ICIDs -* for all DPAA2 devices. -* -*/ -#ifdef CONFIG_FSL_LSCH3 -static void fdt_fixup_smmu (void *blob) -{ -int nodeoffset; - - nodeoffset =fdt_path_offset (blob,"/iommu at 5000000" ); -if (nodeoffset <0 ) { -printf ("\n%s: WARNING: no SMMU node found\n" , __func__); -return ; - } - -/* fixup for all PCI controllers */ -#ifdef CONFIG_PCI -fdt_fixup_smmu_pcie (blob); -#endif -} -#endif -void ft_cpu_setup (void *blob,bd_t *bd) {#ifdef CONFIG_MP
@@ -200,8 +91,4 @@ void ft_cpu_setup(void *blob, bd_t *bd)#ifdef CONFIG_FSL_ESDHC fdt_fixup_esdhc (blob, bd);#endif - -#ifdef CONFIG_FSL_LSCH3 -fdt_fixup_smmu (blob); -#endif }
drivers/pci/pcie_layerscape.c +0 -70
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Signature · 1 line
1.7.9.5
PATCH v6 1/5 armv8: ls2080a: remove obsolete stream ID partitioning support
Quoted 7 lines · Stuart Yoder
From: Stuart Yoder <[email protected]>
Remove stream ID partitioning support that has been made obsolete by upstream device tree bindings that specify how representing how PCI requester IDs are mapped to MSI specifiers and SMMU stream IDs.
Quoted 8 lines
Signed-off-by Stuart Yoder <[email protected]>---
-v6: no changesarch/arm/cpu/armv8/fsl-layerscape/fdt.c | 113 ------------------------------- drivers/pci/pcie_layerscape.c | 70 ------------------- 2 files changed, 183 deletions(-)
Applied to u-boot-fsl-qoriq, awaiting upstream.
Thanks.
York