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Patch "net: ethernet: ucc_geth: fix MEM_PART_MURAM mode" has been added to the 4.9-stable tree

PATCH [email protected] 1 participant 1 message Mar 22, 2018

Subsystems (5)
Network drivers Stable branch Freescale SoC drivers Freescale quicc engine library +1 more subsystems
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This is a note to let you know that I've just added the patch titled

net: ethernet: ucc_geth: fix MEM_PART_MURAM mode

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
net-ethernet-ucc_geth-fix-mem_part_muram-mode.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From foo@baz Thu Mar 22 14:40:23 CET 2018

From: Christophe Leroy <[email protected]>
Date: Tue, 7 Feb 2017 10:05:09 +0100
Subject: net: ethernet: ucc_geth: fix MEM_PART_MURAM mode

From: Christophe Leroy <[email protected]>

[ Upstream commit 8b8642af15ed14b9a7a34d3401afbcc274533e13 ]

Since commit 5093bb965a163 ("powerpc/QE: switch to the cpm_muram implementation"), muram area is not part of immrbar mapping anymore so immrbar_virt_to_phys() is not usable anymore.

Fixes 5093bb965a163 ("powerpc/QE: switch to the cpm_muram implementation")
Signed-off-by Christophe Leroy <[email protected]>
Acked-by David S. Miller <[email protected]>
Acked-by Li Yang <[email protected]>
Signed-off-by Scott Wood <[email protected]>
Signed-off-by Sasha Levin <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 drivers/net/ethernet/freescale/ucc_geth.c |    8 +++-----
 include/soc/fsl/qe/qe.h                   |    1 +
 2 files changed, 4 insertions(+), 5 deletions(-)
drivers/net/ethernet/freescale/ucc_geth.c +3 -5
@@ -2594,11 +2594,10 @@ static int ucc_geth_startup(struct ucc_g
 		} else if (ugeth->ug_info->uf_info.bd_mem_part ==
 			   MEM_PART_MURAM) {
 			out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
-				 (u32) immrbar_virt_to_phys(ugeth->
-							    p_tx_bd_ring[i]));
+				 (u32)qe_muram_dma(ugeth->p_tx_bd_ring[i]));
 			out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
 				 last_bd_completed_address,
-				 (u32) immrbar_virt_to_phys(endOfRing));
+				 (u32)qe_muram_dma(endOfRing));
 		}
 	}
 

@@ -2844,8 +2843,7 @@ static int ucc_geth_startup(struct ucc_g
 		} else if (ugeth->ug_info->uf_info.bd_mem_part ==
 			   MEM_PART_MURAM) {
 			out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
-				 (u32) immrbar_virt_to_phys(ugeth->
-							    p_rx_bd_ring[i]));
+				 (u32)qe_muram_dma(ugeth->p_rx_bd_ring[i]));
 		}
 		/* rest of fields handled by QE */
 	}
include/soc/fsl/qe/qe.h +1 -0
@@ -243,6 +243,7 @@ static inline int qe_alive_during_sleep(
 #define qe_muram_free cpm_muram_free
 #define qe_muram_addr cpm_muram_addr
 #define qe_muram_offset cpm_muram_offset
+#define qe_muram_dma cpm_muram_dma
 
 #define qe_setbits32(_addr, _v) iowrite32be(ioread32be(_addr) |  (_v), (_addr))
 #define qe_clrbits32(_addr, _v) iowrite32be(ioread32be(_addr) & ~(_v), (_addr))

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/net-ethernet-ucc_geth-fix-mem_part_muram-mode.patch