apm821xx: drop 5.4 config and patches

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

1 files changed, 0 insertions, 99 deletions

diff --git a/target/linux/apm821xx/patches-5.4/111-crypto-crypto4xx-reduce-memory-fragmentation.patch b/target/linux/apm821xx/patches-5.4/111-crypto-crypto4xx-reduce-memory-fragmentation.patch
deleted file mode 100644
index 4d23b8816a..0000000000
--- a/target/linux/apm821xx/patches-5.4/111-crypto-crypto4xx-reduce-memory-fragmentation.patch
+++ /dev/null
@@ -1,99 +0,0 @@
-From 3913dbe4b3256ead342572f7aba726a60ab5fd43 Mon Sep 17 00:00:00 2001
-Message-Id: <3913dbe4b3256ead342572f7aba726a60ab5fd43.1577917078.git.chunkeey@gmail.com>
-From: Christian Lamparter <chunkeey@gmail.com>
-Date: Wed, 1 Jan 2020 22:28:28 +0100
-Subject: [PATCH 1/2] crypto: crypto4xx - reduce memory fragmentation
-To: linux-crypto@vger.kernel.org
-Cc: Herbert Xu <herbert@gondor.apana.org.au>
-
-With recent kernels (>5.2), the driver fails to probe, as the
-allocation of the driver's scatter buffer fails with -ENOMEM.
-
-This happens in crypto4xx_build_sdr(). Where the driver tries
-to get 512KiB (=PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD) of
-continuous memory. This big chunk is by design, since the driver
-uses this circumstance in the crypto4xx_copy_pkt_to_dst() to
-its advantage:
-"all scatter-buffers are all neatly organized in one big
-continuous ringbuffer; So scatterwalk_map_and_copy() can be
-instructed to copy a range of buffers in one go."
-
-The PowerPC arch does not have support for DMA_CMA. Hence,
-this patch reorganizes the order in which the memory
-allocations are done. Since the driver itself is responsible
-for some of the issues.
-
-Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
----
- drivers/crypto/amcc/crypto4xx_core.c | 27 +++++++++++++--------------
- 1 file changed, 13 insertions(+), 14 deletions(-)
-
---- a/drivers/crypto/amcc/crypto4xx_core.c
-+++ b/drivers/crypto/amcc/crypto4xx_core.c
-@@ -286,7 +286,8 @@ static u32 crypto4xx_build_gdr(struct cr
- 
- static inline void crypto4xx_destroy_gdr(struct crypto4xx_device *dev)
- {
--	dma_free_coherent(dev->core_dev->device,
-+	if (dev->gdr)
-+		dma_free_coherent(dev->core_dev->device,
- 			  sizeof(struct ce_gd) * PPC4XX_NUM_GD,
- 			  dev->gdr, dev->gdr_pa);
- }
-@@ -354,13 +355,6 @@ static u32 crypto4xx_build_sdr(struct cr
- {
- 	int i;
- 
--	/* alloc memory for scatter descriptor ring */
--	dev->sdr = dma_alloc_coherent(dev->core_dev->device,
--				      sizeof(struct ce_sd) * PPC4XX_NUM_SD,
--				      &dev->sdr_pa, GFP_ATOMIC);
--	if (!dev->sdr)
--		return -ENOMEM;
--
- 	dev->scatter_buffer_va =
- 		dma_alloc_coherent(dev->core_dev->device,
- 			PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
-@@ -368,6 +362,13 @@ static u32 crypto4xx_build_sdr(struct cr
- 	if (!dev->scatter_buffer_va)
- 		return -ENOMEM;
- 
-+	/* alloc memory for scatter descriptor ring */
-+	dev->sdr = dma_alloc_coherent(dev->core_dev->device,
-+				      sizeof(struct ce_sd) * PPC4XX_NUM_SD,
-+				      &dev->sdr_pa, GFP_ATOMIC);
-+	if (!dev->sdr)
-+		return -ENOMEM;
-+
- 	for (i = 0; i < PPC4XX_NUM_SD; i++) {
- 		dev->sdr[i].ptr = dev->scatter_buffer_pa +
- 				  PPC4XX_SD_BUFFER_SIZE * i;
-@@ -1439,16 +1440,15 @@ static int crypto4xx_probe(struct platfo
- 	spin_lock_init(&core_dev->lock);
- 	INIT_LIST_HEAD(&core_dev->dev->alg_list);
- 	ratelimit_default_init(&core_dev->dev->aead_ratelimit);
-+	rc = crypto4xx_build_sdr(core_dev->dev);
-+	if (rc)
-+		goto err_build_sdr;
- 	rc = crypto4xx_build_pdr(core_dev->dev);
- 	if (rc)
--		goto err_build_pdr;
-+		goto err_build_sdr;
- 
- 	rc = crypto4xx_build_gdr(core_dev->dev);
- 	if (rc)
--		goto err_build_pdr;
--
--	rc = crypto4xx_build_sdr(core_dev->dev);
--	if (rc)
- 		goto err_build_sdr;
- 
- 	/* Init tasklet for bottom half processing */
-@@ -1493,7 +1493,6 @@ err_iomap:
- err_build_sdr:
- 	crypto4xx_destroy_sdr(core_dev->dev);
- 	crypto4xx_destroy_gdr(core_dev->dev);
--err_build_pdr:
- 	crypto4xx_destroy_pdr(core_dev->dev);
- 	kfree(core_dev->dev);
- err_alloc_dev: