diff options
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-layerscape/fdt.c')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c index 9c18fd7a16f..1e875c4b08f 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c @@ -73,115 +73,6 @@ 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@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 @@ -204,10 +95,6 @@ void ft_cpu_setup(void *blob, bd_t *bd) fdt_fixup_esdhc(blob, bd); #endif -#ifdef CONFIG_FSL_LSCH3 - fdt_fixup_smmu(blob); -#endif - #ifdef CONFIG_SYS_DPAA_FMAN fdt_fixup_fman_firmware(blob); #endif |