From: Stuart Yoder <stuart.yoder@nxp.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [RESEND PATCH 5/7 v5] pci/layerscape: add stream ID allocator
Date: Wed, 9 Mar 2016 10:03:26 -0600 [thread overview]
Message-ID: <1457539408-7518-6-git-send-email-stuart.yoder@nxp.com> (raw)
In-Reply-To: <1457539408-7518-1-git-send-email-stuart.yoder@nxp.com>
From: Stuart Yoder <stuart.yoder@nxp.com>
add a function to return the next available stream ID
for PCI
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
---
-v5: no change
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 5cc6855..f3bf689 100644
--- a/drivers/pci/pcie_layerscape.c
+++ b/drivers/pci/pcie_layerscape.c
@@ -509,6 +509,17 @@ static void ls_pcie_lut_set_mapping(struct ls_pcie *pcie, int index, u32 devid,
writel((devid << 16), lut + PCIE_LUT_UDR(index));
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 0xffffffff;
+
+ return next_stream_id++;
+}
#endif
int ls_pcie_init_ctrl(int busno, enum srds_prtcl dev, struct ls_pcie_info *info)
--
1.7.9.5
next prev parent reply other threads:[~2016-03-09 16:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1457539408-7518-1-git-send-email-stuart.yoder@nxp.com>
2016-03-09 16:03 ` [U-Boot] [RESEND PATCH 1/7 v5] armv8: ls2080a: remove obsolete stream ID partitioning support Stuart Yoder
2016-03-09 16:03 ` [U-Boot] [RESEND PATCH 2/7 v5] armv8: ls2080a: update stream ID partitioning info Stuart Yoder
2016-03-09 16:03 ` [U-Boot] [RESEND PATCH 4/7 v5] pci/layerscape: add support for LUT Stuart Yoder
2016-03-09 18:01 ` york sun
2016-03-09 23:10 ` Stuart Yoder
2016-03-09 16:03 ` Stuart Yoder [this message]
2016-03-09 16:03 ` [U-Boot] [RESEND PATCH 6/7 v5] pci/layerscape: fdt: function to set msi-map entries Stuart Yoder
2016-03-09 16:03 ` [U-Boot] [RESEND PATCH 7/7 v5] pci/layerscape: set LUT and msi-map for discovered PCI devices Stuart Yoder
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