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BY1PR03MB1499; 5:0l8KTQUbuN1EBnmyoPsMstq2VzBXKC55FcTJeriD2mYNQRgPAlxqToX/BISwcAkQFZ2lw89gNx/fdGtgg1jitvHY5OEM0sM3ZTDO6PY4YZGX39fcJgk2WDfc7gfbK9SAt8mb0oHLAzUV5Vl0EAV5w3R4JrINfp6aCDdEKWM6RDM=; 24:c6VNUyB/ofqKflnsT7e/8fpYF94DQrMaHCgNa4NHHU+MawYMy7Vm5byHstaT0eqPTpgRDiSHlpsbcscuxyFll0FJodNgKY+dC8iSJSacAkA= SpamDiagnosticOutput: 1:23 SpamDiagnosticMetadata: NSPM X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Feb 2016 23:26:54.3117 (UTC) X-MS-Exchange-CrossTenant-Id: 5afe0b00-7697-4969-b663-5eab37d5f47e X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e; Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR03MB1499 Cc: marc.zyngier@arm.com, leoyang.li@nxp.com, mingkai.hu@nxp.com Subject: [U-Boot] [PATCH 5/7 v2] pci/layerscape: add stream ID allocator X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Stuart Yoder add a function to return the next available stream ID for PCI Signed-off-by: Stuart Yoder --- -v2 -no changes drivers/pci/pcie_layerscape.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c index 6886488..f96a08c 100644 --- a/drivers/pci/pcie_layerscape.c +++ b/drivers/pci/pcie_layerscape.c @@ -517,6 +517,17 @@ static void ls_pcie_lut_set_mapping(struct ls_pcie *pcie, int index, u32 devid, writel(streamid | PCIE_LUT_ENABLE, lut + PCIE_LUT_LDR(index)); } +/* returns the next available streamid */ +static u32 ls_pcie_next_streamid(void) +{ + static int next_stream_id = FSL_PEX_STREAM_ID_START; + + if (next_stream_id > FSL_PEX_STREAM_ID_END) + return -1; + + return next_stream_id++; +} + int ls_pcie_init_ctrl(int busno, enum srds_prtcl dev, struct ls_pcie_info *info) { struct ls_pcie *pcie;