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ipq806x: backport mtd adm and smem driver

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- Backport mtd adm driver from kernel 5.12
- Backport mtd parser smem from kernel 5.11
- Fix mtd rootfs patch
- Update qcom,smem compatible to qcom,smem-parts

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
This commit is contained in:
Ansuel Smith 2021-03-01 01:06:22 +01:00 committed by Petr Štetiar
parent cde218d14b
commit c864f587a2
16 changed files with 820 additions and 910 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/linux/ipq806x/config-5.4
View File

@ -313,7 +313,7 @@ CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_NAND_CORE=y
CONFIG_MTD_NAND_ECC_SW_HAMMING=y
CONFIG_MTD_NAND_QCOM=y
CONFIG_MTD_QCOM_SMEM_PARTS=y
CONFIG_MTD_QCOMSMEM_PARTS=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_SPLIT_FIRMWARE=y

4
target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
View File

@ -30,7 +30,7 @@
&flash {
partitions {
compatible = "qcom,smem";
compatible = "qcom,smem-part";
};
};
@ -66,7 +66,7 @@
nand-ecc-step-size = <512>;
partitions {
compatible = "qcom,smem";
compatible = "qcom,smem-part";
};
};
};

4
target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-ap161.dts
View File

@ -38,7 +38,7 @@
&flash {
partitions {
compatible = "qcom,smem";
compatible = "qcom,smem-part";
};
};
@ -78,7 +78,7 @@
nand-ecc-step-size = <512>;
partitions {
compatible = "qcom,smem";
compatible = "qcom,smem-part";
};
};
};

2
target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-g10.dts
View File

@ -179,7 +179,7 @@
nand-ecc-step-size = <512>;
partitions {
compatible = "qcom,smem";
compatible = "qcom,smem-part";
};
};
};

2
target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065-nbg6817.dts
View File

@ -182,7 +182,7 @@
reg = <0>;
partitions {
compatible = "qcom,smem";
compatible = "qcom,smem-part";
};
};
};

2
target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8068-ecw5410.dts
View File

@ -184,7 +184,7 @@
reg = <0>;
partitions {
compatible = "qcom,smem";
compatible = "qcom,smem-part";
};
};
};

282
target/linux/ipq806x/patches-5.10/0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch
View File

@ -1,282 +0,0 @@
From d8eeb4de90e968ba32d956728c866f20752cf2c3 Mon Sep 17 00:00:00 2001
From: Mathieu Olivari <mathieu@codeaurora.org>
Date: Thu, 9 Mar 2017 08:18:08 +0100
Subject: [PATCH 31/69] mtd: add SMEM parser for QCOM platforms
On QCOM platforms using MTD devices storage (such as IPQ806x), SMEM is
used to store partition layout. This new parser can now be used to read
SMEM and use it to register an MTD layout according to its content.
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>
---
drivers/mtd/parsers/Kconfig | 7 ++
drivers/mtd/parsers/Makefile | 1 +
drivers/mtd/parsers/qcom_smem_part.c | 228 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 236 insertions(+)
create mode 100644 drivers/mtd/parsers/qcom_smem_part.c
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -119,6 +119,13 @@ config MTD_PARSER_TRX
This driver will parse TRX header and report at least two partitions:
kernel and rootfs.
+config MTD_QCOM_SMEM_PARTS
+ tristate "QCOM SMEM partitioning support"
+ depends on QCOM_SMEM
+ help
+ This provides partitions parser for QCOM devices using SMEM
+ such as IPQ806x.
+
config MTD_SHARPSL_PARTS
tristate "Sharp SL Series NAND flash partition parser"
depends on MTD_NAND_SHARPSL || MTD_NAND_TMIO || COMPILE_TEST
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o
obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
+obj-$(CONFIG_MTD_QCOM_SMEM_PARTS) += qcom_smem_part.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
obj-$(CONFIG_MTD_ROUTERBOOT_PARTS) += routerbootpart.o
--- /dev/null
+++ b/drivers/mtd/parsers/qcom_smem_part.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+
+#include <linux/soc/qcom/smem.h>
+
+/* Processor/host identifier for the application processor */
+#define SMEM_HOST_APPS 0
+
+/* SMEM items index */
+#define SMEM_AARM_PARTITION_TABLE 9
+#define SMEM_BOOT_FLASH_TYPE 421
+#define SMEM_BOOT_FLASH_BLOCK_SIZE 424
+
+/* SMEM Flash types */
+#define SMEM_FLASH_NAND 2
+#define SMEM_FLASH_SPI 6
+
+#define SMEM_PART_NAME_SZ 16
+#define SMEM_PARTS_MAX 32
+
+struct smem_partition {
+ char name[SMEM_PART_NAME_SZ];
+ __le32 start;
+ __le32 size;
+ __le32 attr;
+};
+
+struct smem_partition_table {
+ u8 magic[8];
+ __le32 version;
+ __le32 len;
+ struct smem_partition parts[SMEM_PARTS_MAX];
+};
+
+/* SMEM Magic values in partition table */
+static const u8 SMEM_PTABLE_MAGIC[] = {
+ 0xaa, 0x73, 0xee, 0x55,
+ 0xdb, 0xbd, 0x5e, 0xe3,
+};
+
+static int qcom_smem_get_flash_blksz(u64 **smem_blksz)
+{
+ size_t size;
+
+ *smem_blksz = qcom_smem_get(SMEM_HOST_APPS, SMEM_BOOT_FLASH_BLOCK_SIZE,
+ &size);
+
+ if (IS_ERR(*smem_blksz)) {
+ pr_err("Unable to read flash blksz from SMEM\n");
+ return -ENOENT;
+ }
+
+ if (size != sizeof(**smem_blksz)) {
+ pr_err("Invalid flash blksz size in SMEM\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qcom_smem_get_flash_type(u64 **smem_flash_type)
+{
+ size_t size;
+
+ *smem_flash_type = qcom_smem_get(SMEM_HOST_APPS, SMEM_BOOT_FLASH_TYPE,
+ &size);
+
+ if (IS_ERR(*smem_flash_type)) {
+ pr_err("Unable to read flash type from SMEM\n");
+ return -ENOENT;
+ }
+
+ if (size != sizeof(**smem_flash_type)) {
+ pr_err("Invalid flash type size in SMEM\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qcom_smem_get_flash_partitions(struct smem_partition_table **pparts)
+{
+ size_t size;
+
+ *pparts = qcom_smem_get(SMEM_HOST_APPS, SMEM_AARM_PARTITION_TABLE,
+ &size);
+
+ if (IS_ERR(*pparts)) {
+ pr_err("Unable to read partition table from SMEM\n");
+ return -ENOENT;
+ }
+
+ return 0;
+}
+
+static int of_dev_node_match(struct device *dev, const void *data)
+{
+ return dev->of_node == data;
+}
+
+static bool is_spi_device(struct device_node *np)
+{
+ struct device *dev;
+
+ dev = bus_find_device(&spi_bus_type, NULL, np, of_dev_node_match);
+ if (!dev)
+ return false;
+
+ put_device(dev);
+ return true;
+}
+
+static int parse_qcom_smem_partitions(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct smem_partition_table *smem_parts;
+ u64 *smem_flash_type, *smem_blksz;
+ struct mtd_partition *mtd_parts;
+ struct device_node *of_node = master->dev.of_node;
+ int i, ret;
+
+ /*
+ * SMEM will only store the partition table of the boot device.
+ * If this is not the boot device, do not return any partition.
+ */
+ ret = qcom_smem_get_flash_type(&smem_flash_type);
+ if (ret < 0)
+ return ret;
+
+ if ((*smem_flash_type == SMEM_FLASH_NAND && !mtd_type_is_nand(master))
+ || (*smem_flash_type == SMEM_FLASH_SPI && !is_spi_device(of_node)))
+ return 0;
+
+ /*
+ * Just for sanity purpose, make sure the block size in SMEM matches the
+ * block size of the MTD device
+ */
+ ret = qcom_smem_get_flash_blksz(&smem_blksz);
+ if (ret < 0)
+ return ret;
+
+ if (*smem_blksz != master->erasesize) {
+ pr_err("SMEM block size differs from MTD block size\n");
+ return -EINVAL;
+ }
+
+ /* Get partition pointer from SMEM */
+ ret = qcom_smem_get_flash_partitions(&smem_parts);
+ if (ret < 0)
+ return ret;
+
+ if (memcmp(SMEM_PTABLE_MAGIC, smem_parts->magic,
+ sizeof(SMEM_PTABLE_MAGIC))) {
+ pr_err("SMEM partition magic invalid\n");
+ return -EINVAL;
+ }
+
+ /* Allocate and populate the mtd structures */
+ mtd_parts = kcalloc(le32_to_cpu(smem_parts->len), sizeof(*mtd_parts),
+ GFP_KERNEL);
+ if (!mtd_parts)
+ return -ENOMEM;
+
+ for (i = 0; i < smem_parts->len; i++) {
+ struct smem_partition *s_part = &smem_parts->parts[i];
+ struct mtd_partition *m_part = &mtd_parts[i];
+
+ m_part->name = s_part->name;
+ m_part->size = le32_to_cpu(s_part->size) * (*smem_blksz);
+ m_part->offset = le32_to_cpu(s_part->start) * (*smem_blksz);
+
+ /*
+ * The last SMEM partition may have its size marked as
+ * something like 0xffffffff, which means "until the end of the
+ * flash device". In this case, truncate it.
+ */
+ if (m_part->offset + m_part->size > master->size)
+ m_part->size = master->size - m_part->offset;
+ }
+
+ *pparts = mtd_parts;
+
+ return smem_parts->len;
+}
+
+static const struct of_device_id qcom_smem_of_match_table[] = {
+ { .compatible = "qcom,smem" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, qcom_smem_of_match_table);
+
+static struct mtd_part_parser qcom_smem_parser = {
+ .owner = THIS_MODULE,
+ .parse_fn = parse_qcom_smem_partitions,
+ .name = "qcom-smem",
+ .of_match_table = qcom_smem_of_match_table,
+};
+
+static int __init qcom_smem_parser_init(void)
+{
+ register_mtd_parser(&qcom_smem_parser);
+ return 0;
+}
+
+static void __exit qcom_smem_parser_exit(void)
+{
+ deregister_mtd_parser(&qcom_smem_parser);
+}
+
+module_init(qcom_smem_parser_init);
+module_exit(qcom_smem_parser_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mathieu Olivari <mathieu@codeaurora.org>");
+MODULE_DESCRIPTION("Parsing code for SMEM based partition tables");

23
target/linux/ipq806x/patches-5.10/0061-mtd-rootfs-conflicts-with-OpenWrt-auto-mounting.patch
View File

@ -1,23 +0,0 @@
From 5001f2e1a325b68dbf225bd17f69a4d3d975cca5 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Thu, 9 Mar 2017 09:31:44 +0100
Subject: [PATCH 61/69] mtd: "rootfs" conflicts with OpenWrt auto mounting
Signed-off-by: John Crispin <john@phrozen.org>
---
drivers/mtd/parsers/qcom_smem_part.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/mtd/parsers/qcom_smem_part.c
+++ b/drivers/mtd/parsers/qcom_smem_part.c
@@ -189,6 +189,10 @@ static int parse_qcom_smem_partitions(st
m_part->size = le32_to_cpu(s_part->size) * (*smem_blksz);
m_part->offset = le32_to_cpu(s_part->start) * (*smem_blksz);
+ /* "rootfs" conflicts with OpenWrt auto mounting */
+ if (mtd_type_is_nand(master) && !strcmp(m_part->name, "rootfs"))
+ m_part->name = "ubi";
+
/*
* The last SMEM partition may have its size marked as
* something like 0xffffffff, which means "until the end of the

301
target/linux/ipq806x/patches-5.10/0002-dmaengine-Add-ADM-driver.patch → target/linux/ipq806x/patches-5.10/100-v5.11-dmaengine-qcom-add_ADM_driver.patch
View File

@ -1,86 +1,95 @@
From 563fa24db4e529c5a3311928d73a8a90531ee527 Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <twp@codeaurora.org>
Date: Mon, 16 May 2016 17:58:51 -0700
Subject: [PATCH 02/69] dmaengine: Add ADM driver
Original patch by Andy Gross.
From 5c9f8c2dbdbe53818bcde6aa6695e1331e5f841f Mon Sep 17 00:00:00 2001
From: Jonathan McDowell <noodles@earth.li>
Date: Sat, 14 Nov 2020 14:02:33 +0000
Subject: dmaengine: qcom: Add ADM driver
Add the DMA engine driver for the QCOM Application Data Mover (ADM) DMA
controller found in the MSM8x60 and IPQ/APQ8064 platforms.
The ADM supports both memory to memory transactions and memory
to/from peripheral device transactions. The controller also provides flow
control capabilities for transactions to/from peripheral devices.
to/from peripheral device transactions. The controller also provides
flow control capabilities for transactions to/from peripheral devices.
The initial release of this driver supports slave transfers to/from peripherals
and also incorporates CRCI (client rate control interface) flow control.
The initial release of this driver supports slave transfers to/from
peripherals and also incorporates CRCI (client rate control interface)
flow control.
The hardware only supports a 32 bit physical address, so specifying
!PHYS_ADDR_T_64BIT gives maximum COMPILE_TEST coverage without having to
spend effort on kludging things in the code that will never actually be
needed on real hardware.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Link: https://lore.kernel.org/r/20201114140233.GM32650@earth.li
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
drivers/dma/qcom/Kconfig | 10 +
drivers/dma/qcom/Kconfig | 11 +
drivers/dma/qcom/Makefile | 1 +
drivers/dma/qcom/qcom_adm.c | 900 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 911 insertions(+)
drivers/dma/qcom/qcom_adm.c | 903 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 915 insertions(+)
create mode 100644 drivers/dma/qcom/qcom_adm.c
diff --git a/drivers/dma/qcom/Kconfig b/drivers/dma/qcom/Kconfig
index 3bcb689162c67..0389d60d2604a 100644
--- a/drivers/dma/qcom/Kconfig
+++ b/drivers/dma/qcom/Kconfig
@@ -28,3 +28,13 @@ config QCOM_HIDMA
(user to kernel, kernel to kernel, etc.). It only supports
memcpy interface. The core is not intended for general
purpose slave DMA.
+
@@ -1,4 +1,15 @@
# SPDX-License-Identifier: GPL-2.0-only
+config QCOM_ADM
+ tristate "Qualcomm ADM support"
+ depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM)
+ depends on (ARCH_QCOM || COMPILE_TEST) && !PHYS_ADDR_T_64BIT
+ select DMA_ENGINE
+ select DMA_VIRTUAL_CHANNELS
+ ---help---
+ Enable support for the Qualcomm ADM DMA controller. This controller
+ provides DMA capabilities for both general purpose and on-chip
+ peripheral devices.
+ help
+ Enable support for the Qualcomm Application Data Mover (ADM) DMA
+ controller, as present on MSM8x60, APQ8064, and IPQ8064 devices.
+ This controller provides DMA capabilities for both general purpose
+ and on-chip peripheral devices.
+
config QCOM_BAM_DMA
tristate "QCOM BAM DMA support"
depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM)
diff --git a/drivers/dma/qcom/Makefile b/drivers/dma/qcom/Makefile
index 1ae92da88b0c9..346e643fbb6db 100644
--- a/drivers/dma/qcom/Makefile
+++ b/drivers/dma/qcom/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_QCOM_HIDMA_MGMT) += hdma_mg
hdma_mgmt-objs := hidma_mgmt.o hidma_mgmt_sys.o
obj-$(CONFIG_QCOM_HIDMA) += hdma.o
hdma-objs := hidma_ll.o hidma.o hidma_dbg.o
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_QCOM_ADM) += qcom_adm.o
obj-$(CONFIG_QCOM_BAM_DMA) += bam_dma.o
obj-$(CONFIG_QCOM_HIDMA_MGMT) += hdma_mgmt.o
hdma_mgmt-objs := hidma_mgmt.o hidma_mgmt_sys.o
diff --git a/drivers/dma/qcom/qcom_adm.c b/drivers/dma/qcom/qcom_adm.c
new file mode 100644
index 0000000000000..9b6f8e050ecce
--- /dev/null
+++ b/drivers/dma/qcom/qcom_adm.c
@@ -0,0 +1,914 @@
@@ -0,0 +1,903 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_dma.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/clk.h>
+#include <linux/dmaengine.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+
+#include "../dmaengine.h"
+#include "../virt-dma.h"
@ -90,10 +99,10 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+#define ADM_CI_MULTI 0x4
+#define ADM_CRCI_MULTI 0x4
+#define ADM_EE_MULTI 0x800
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * chan)
+#define ADM_EE_OFFS(ee) (ADM_EE_MULTI * ee)
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * (chan))
+#define ADM_EE_OFFS(ee) (ADM_EE_MULTI * (ee))
+#define ADM_CHAN_EE_OFFS(chan, ee) (ADM_CHAN_OFFS(chan) + ADM_EE_OFFS(ee))
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * chan)
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * (chan))
+#define ADM_CI_OFFS(ci) (ADM_CHAN_OFF(ci))
+#define ADM_CH_CMD_PTR(chan, ee) (ADM_CHAN_EE_OFFS(chan, ee))
+#define ADM_CH_RSLT(chan, ee) (0x40 + ADM_CHAN_EE_OFFS(chan, ee))
@ -102,62 +111,62 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+#define ADM_CH_CONF(chan) (0x240 + ADM_CHAN_OFFS(chan))
+#define ADM_CH_RSLT_CONF(chan, ee) (0x300 + ADM_CHAN_EE_OFFS(chan, ee))
+#define ADM_SEC_DOMAIN_IRQ_STATUS(ee) (0x380 + ADM_EE_OFFS(ee))
+#define ADM_CI_CONF(ci) (0x390 + ci * ADM_CI_MULTI)
+#define ADM_CI_CONF(ci) (0x390 + (ci) * ADM_CI_MULTI)
+#define ADM_GP_CTL 0x3d8
+#define ADM_CRCI_CTL(crci, ee) (0x400 + crci * ADM_CRCI_MULTI + \
+#define ADM_CRCI_CTL(crci, ee) (0x400 + (crci) * ADM_CRCI_MULTI + \
+ ADM_EE_OFFS(ee))
+
+/* channel status */
+#define ADM_CH_STATUS_VALID BIT(1)
+#define ADM_CH_STATUS_VALID BIT(1)
+
+/* channel result */
+#define ADM_CH_RSLT_VALID BIT(31)
+#define ADM_CH_RSLT_ERR BIT(3)
+#define ADM_CH_RSLT_FLUSH BIT(2)
+#define ADM_CH_RSLT_TPD BIT(1)
+#define ADM_CH_RSLT_VALID BIT(31)
+#define ADM_CH_RSLT_ERR BIT(3)
+#define ADM_CH_RSLT_FLUSH BIT(2)
+#define ADM_CH_RSLT_TPD BIT(1)
+
+/* channel conf */
+#define ADM_CH_CONF_SHADOW_EN BIT(12)
+#define ADM_CH_CONF_MPU_DISABLE BIT(11)
+#define ADM_CH_CONF_PERM_MPU_CONF BIT(9)
+#define ADM_CH_CONF_FORCE_RSLT_EN BIT(7)
+#define ADM_CH_CONF_SEC_DOMAIN(ee) (((ee & 0x3) << 4) | ((ee & 0x4) << 11))
+#define ADM_CH_CONF_SEC_DOMAIN(ee) ((((ee) & 0x3) << 4) | (((ee) & 0x4) << 11))
+
+/* channel result conf */
+#define ADM_CH_RSLT_CONF_FLUSH_EN BIT(1)
+#define ADM_CH_RSLT_CONF_IRQ_EN BIT(0)
+
+/* CRCI CTL */
+#define ADM_CRCI_CTL_MUX_SEL BIT(18)
+#define ADM_CRCI_CTL_RST BIT(17)
+#define ADM_CRCI_CTL_MUX_SEL BIT(18)
+#define ADM_CRCI_CTL_RST BIT(17)
+
+/* CI configuration */
+#define ADM_CI_RANGE_END(x) (x << 24)
+#define ADM_CI_RANGE_START(x) (x << 16)
+#define ADM_CI_BURST_4_WORDS BIT(2)
+#define ADM_CI_BURST_8_WORDS BIT(3)
+#define ADM_CI_RANGE_END(x) ((x) << 24)
+#define ADM_CI_RANGE_START(x) ((x) << 16)
+#define ADM_CI_BURST_4_WORDS BIT(2)
+#define ADM_CI_BURST_8_WORDS BIT(3)
+
+/* GP CTL */
+#define ADM_GP_CTL_LP_EN BIT(12)
+#define ADM_GP_CTL_LP_CNT(x) (x << 8)
+#define ADM_GP_CTL_LP_EN BIT(12)
+#define ADM_GP_CTL_LP_CNT(x) ((x) << 8)
+
+/* Command pointer list entry */
+#define ADM_CPLE_LP BIT(31)
+#define ADM_CPLE_CMD_PTR_LIST BIT(29)
+#define ADM_CPLE_LP BIT(31)
+#define ADM_CPLE_CMD_PTR_LIST BIT(29)
+
+/* Command list entry */
+#define ADM_CMD_LC BIT(31)
+#define ADM_CMD_DST_CRCI(n) (((n) & 0xf) << 7)
+#define ADM_CMD_SRC_CRCI(n) (((n) & 0xf) << 3)
+#define ADM_CMD_LC BIT(31)
+#define ADM_CMD_DST_CRCI(n) (((n) & 0xf) << 7)
+#define ADM_CMD_SRC_CRCI(n) (((n) & 0xf) << 3)
+
+#define ADM_CMD_TYPE_SINGLE 0x0
+#define ADM_CMD_TYPE_BOX 0x3
+#define ADM_CMD_TYPE_SINGLE 0x0
+#define ADM_CMD_TYPE_BOX 0x3
+
+#define ADM_CRCI_MUX_SEL BIT(4)
+#define ADM_DESC_ALIGN 8
+#define ADM_MAX_XFER (SZ_64K-1)
+#define ADM_MAX_ROWS (SZ_64K-1)
+#define ADM_MAX_CHANNELS 16
+#define ADM_CRCI_MUX_SEL BIT(4)
+#define ADM_DESC_ALIGN 8
+#define ADM_MAX_XFER (SZ_64K - 1)
+#define ADM_MAX_ROWS (SZ_64K - 1)
+#define ADM_MAX_CHANNELS 16
+
+struct adm_desc_hw_box {
+ u32 cmd;
@ -255,7 +264,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ case 32:
+ case 64:
+ case 128:
+ ret = ffs(burst>>4) - 1;
+ ret = ffs(burst >> 4) - 1;
+ break;
+ case 192:
+ ret = 4;
@ -281,9 +290,10 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * @burst: Burst size of transaction
+ * @direction: DMA transfer direction
+ */
+static void *adm_process_fc_descriptors(struct adm_chan *achan,
+ void *desc, struct scatterlist *sg, u32 crci, u32 burst,
+ enum dma_transfer_direction direction)
+static void *adm_process_fc_descriptors(struct adm_chan *achan, void *desc,
+ struct scatterlist *sg, u32 crci,
+ u32 burst,
+ enum dma_transfer_direction direction)
+{
+ struct adm_desc_hw_box *box_desc = NULL;
+ struct adm_desc_hw_single *single_desc;
@ -349,9 +359,9 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * @sg: Scatterlist entry
+ * @direction: DMA transfer direction
+ */
+static void *adm_process_non_fc_descriptors(struct adm_chan *achan,
+ void *desc, struct scatterlist *sg,
+ enum dma_transfer_direction direction)
+static void *adm_process_non_fc_descriptors(struct adm_chan *achan, void *desc,
+ struct scatterlist *sg,
+ enum dma_transfer_direction direction)
+{
+ struct adm_desc_hw_single *single_desc;
+ u32 remainder = sg_dma_len(sg);
@ -398,9 +408,11 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * @context: transfer context (unused)
+ */
+static struct dma_async_tx_descriptor *adm_prep_slave_sg(struct dma_chan *chan,
+ struct scatterlist *sgl, unsigned int sg_len,
+ enum dma_transfer_direction direction, unsigned long flags,
+ void *context)
+ struct scatterlist *sgl,
+ unsigned int sg_len,
+ enum dma_transfer_direction direction,
+ unsigned long flags,
+ void *context)
+{
+ struct adm_chan *achan = to_adm_chan(chan);
+ struct adm_device *adev = achan->adev;
@ -427,7 +439,6 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* if using flow control, validate burst and crci values */
+ if (achan->slave.device_fc) {
+
+ blk_size = adm_get_blksize(burst);
+ if (blk_size < 0) {
+ dev_err(adev->dev, "invalid burst value: %d\n",
@ -455,7 +466,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ }
+ }
+
+ async_desc = kzalloc(sizeof(*async_desc), GFP_ATOMIC);
+ async_desc = kzalloc(sizeof(*async_desc), GFP_NOWAIT);
+ if (!async_desc)
+ return ERR_PTR(-ENOMEM);
+
@ -468,7 +479,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ box_count * sizeof(struct adm_desc_hw_box) +
+ sizeof(*cple) + 2 * ADM_DESC_ALIGN;
+
+ async_desc->cpl = kzalloc(async_desc->dma_len, GFP_ATOMIC);
+ async_desc->cpl = kzalloc(async_desc->dma_len, GFP_NOWAIT);
+ if (!async_desc->cpl)
+ goto free;
+
@ -483,10 +494,10 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ if (achan->slave.device_fc)
+ desc = adm_process_fc_descriptors(achan, desc, sg, crci,
+ burst, direction);
+ burst, direction);
+ else
+ desc = adm_process_non_fc_descriptors(achan, desc, sg,
+ direction);
+ direction);
+ }
+
+ async_desc->dma_addr = dma_map_single(adev->dev, async_desc->cpl,
@ -532,7 +543,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* send flush command to terminate current transaction */
+ writel_relaxed(0x0,
+ adev->regs + ADM_CH_FLUSH_STATE0(achan->id, adev->ee));
+ adev->regs + ADM_CH_FLUSH_STATE0(achan->id, adev->ee));
+
+ spin_unlock_irqrestore(&achan->vc.lock, flags);
+
@ -586,7 +597,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ adev->regs + ADM_CH_CONF(achan->id));
+
+ writel(ADM_CH_RSLT_CONF_IRQ_EN | ADM_CH_RSLT_CONF_FLUSH_EN,
+ adev->regs + ADM_CH_RSLT_CONF(achan->id, adev->ee));
+ adev->regs + ADM_CH_RSLT_CONF(achan->id, adev->ee));
+
+ achan->initialized = 1;
+ }
@ -594,7 +605,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ /* set the crci block size if this transaction requires CRCI */
+ if (async_desc->crci) {
+ writel(async_desc->mux | async_desc->blk_size,
+ adev->regs + ADM_CRCI_CTL(async_desc->crci, adev->ee));
+ adev->regs + ADM_CRCI_CTL(async_desc->crci, adev->ee));
+ }
+
+ /* make sure IRQ enable doesn't get reordered */
@ -602,7 +613,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* write next command list out to the CMD FIFO */
+ writel(ALIGN(async_desc->dma_addr, ADM_DESC_ALIGN) >> 3,
+ adev->regs + ADM_CH_CMD_PTR(achan->id, adev->ee));
+ adev->regs + ADM_CH_CMD_PTR(achan->id, adev->ee));
+}
+
+/**
@ -628,7 +639,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ if (srcs & BIT(i)) {
+ status = readl_relaxed(adev->regs +
+ ADM_CH_STATUS_SD(i, adev->ee));
+ ADM_CH_STATUS_SD(i, adev->ee));
+
+ /* if no result present, skip */
+ if (!(status & ADM_CH_STATUS_VALID))
@ -673,7 +684,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * Return status of dma transaction
+ */
+static enum dma_status adm_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
+ struct dma_tx_state *txstate)
+ struct dma_tx_state *txstate)
+{
+ struct adm_chan *achan = to_adm_chan(chan);
+ struct virt_dma_desc *vd;
@ -697,7 +708,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * residue is either the full length if it is in the issued list, or 0
+ * if it is in progress. We have no reliable way of determining
+ * anything inbetween
+ */
+ */
+ dma_set_residue(txstate, residue);
+
+ if (achan->error)
@ -741,7 +752,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+}
+
+static void adm_channel_init(struct adm_device *adev, struct adm_chan *achan,
+ u32 index)
+ u32 index)
+{
+ achan->id = index;
+ achan->adev = adev;
@ -753,7 +764,6 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+static int adm_dma_probe(struct platform_device *pdev)
+{
+ struct adm_device *adev;
+ struct resource *iores;
+ int ret;
+ u32 i;
+
@ -763,8 +773,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ adev->dev = &pdev->dev;
+
+ iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ adev->regs = devm_ioremap_resource(&pdev->dev, iores);
+ adev->regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(adev->regs))
+ return PTR_ERR(adev->regs);
+
@ -782,64 +791,60 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ if (IS_ERR(adev->core_clk))
+ return PTR_ERR(adev->core_clk);
+
+ adev->iface_clk = devm_clk_get(adev->dev, "iface");
+ if (IS_ERR(adev->iface_clk))
+ return PTR_ERR(adev->iface_clk);
+
+ adev->clk_reset = devm_reset_control_get_exclusive(&pdev->dev, "clk");
+ if (IS_ERR(adev->clk_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 reset\n");
+ return PTR_ERR(adev->clk_reset);
+ }
+
+ adev->c0_reset = devm_reset_control_get_exclusive(&pdev->dev, "c0");
+ if (IS_ERR(adev->c0_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C0 reset\n");
+ return PTR_ERR(adev->c0_reset);
+ }
+
+ adev->c1_reset = devm_reset_control_get_exclusive(&pdev->dev, "c1");
+ if (IS_ERR(adev->c1_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C1 reset\n");
+ return PTR_ERR(adev->c1_reset);
+ }
+
+ adev->c2_reset = devm_reset_control_get_exclusive(&pdev->dev, "c2");
+ if (IS_ERR(adev->c2_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C2 reset\n");
+ return PTR_ERR(adev->c2_reset);
+ }
+
+ ret = clk_prepare_enable(adev->core_clk);
+ if (ret) {
+ dev_err(adev->dev, "failed to prepare/enable core clock\n");
+ return ret;
+ }
+
+ adev->iface_clk = devm_clk_get(adev->dev, "iface");
+ if (IS_ERR(adev->iface_clk)) {
+ ret = PTR_ERR(adev->iface_clk);
+ goto err_disable_core_clk;
+ }
+
+ ret = clk_prepare_enable(adev->iface_clk);
+ if (ret) {
+ dev_err(adev->dev, "failed to prepare/enable iface clock\n");
+ goto err_disable_core_clk;
+ }
+
+ adev->clk_reset = devm_reset_control_get(&pdev->dev, "clk");
+ if (IS_ERR(adev->clk_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 reset\n");
+ ret = PTR_ERR(adev->clk_reset);
+ goto err_disable_clks;
+ }
+
+ adev->c0_reset = devm_reset_control_get(&pdev->dev, "c0");
+ if (IS_ERR(adev->c0_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C0 reset\n");
+ ret = PTR_ERR(adev->c0_reset);
+ goto err_disable_clks;
+ }
+
+ adev->c1_reset = devm_reset_control_get(&pdev->dev, "c1");
+ if (IS_ERR(adev->c1_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C1 reset\n");
+ ret = PTR_ERR(adev->c1_reset);
+ goto err_disable_clks;
+ }
+
+ adev->c2_reset = devm_reset_control_get(&pdev->dev, "c2");
+ if (IS_ERR(adev->c2_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C2 reset\n");
+ ret = PTR_ERR(adev->c2_reset);
+ goto err_disable_clks;
+ }
+
+ reset_control_assert(adev->clk_reset);
+ reset_control_assert(adev->c0_reset);
+ reset_control_assert(adev->c1_reset);
+ reset_control_assert(adev->c2_reset);
+
+ udelay(2);
+
+ reset_control_deassert(adev->clk_reset);
+ reset_control_deassert(adev->c0_reset);
+ reset_control_deassert(adev->c1_reset);
+ reset_control_deassert(adev->c2_reset);
+
+ adev->channels = devm_kcalloc(adev->dev, ADM_MAX_CHANNELS,
+ sizeof(*adev->channels), GFP_KERNEL);
+ sizeof(*adev->channels), GFP_KERNEL);
+
+ if (!adev->channels) {
+ ret = -ENOMEM;
@ -859,16 +864,16 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* configure client interfaces */
+ writel(ADM_CI_RANGE_START(0x40) | ADM_CI_RANGE_END(0xb0) |
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(0));
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(0));
+ writel(ADM_CI_RANGE_START(0x2a) | ADM_CI_RANGE_END(0x2c) |
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(1));
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(1));
+ writel(ADM_CI_RANGE_START(0x12) | ADM_CI_RANGE_END(0x28) |
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(2));
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(2));
+ writel(ADM_GP_CTL_LP_EN | ADM_GP_CTL_LP_CNT(0xf),
+ adev->regs + ADM_GP_CTL);
+ adev->regs + ADM_GP_CTL);
+
+ ret = devm_request_irq(adev->dev, adev->irq, adm_dma_irq,
+ 0, "adm_dma", adev);
+ 0, "adm_dma", adev);
+ if (ret)
+ goto err_disable_clks;
+
@ -933,6 +938,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ /* mask IRQs for this channel/EE pair */
+ writel(0, adev->regs + ADM_CH_RSLT_CONF(achan->id, adev->ee));
+
+ tasklet_kill(&adev->channels[i].vc.task);
+ adm_terminate_all(&adev->channels[i].vc.chan);
+ }
+
@ -964,3 +970,6 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+MODULE_AUTHOR("Andy Gross <agross@codeaurora.org>");
+MODULE_DESCRIPTION("QCOM ADM DMA engine driver");
+MODULE_LICENSE("GPL v2");
--
cgit 1.2.3-1.el7

227
target/linux/ipq806x/patches-5.10/101-5.12-mtd-parsers-Add-Qcom-SMEM-parser.patch Normal file
View File

@ -0,0 +1,227 @@
From 803eb124e1a64e42888542c3444bfe6dac412c7f Mon Sep 17 00:00:00 2001
From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Date: Mon, 4 Jan 2021 09:41:35 +0530
Subject: mtd: parsers: Add Qcom SMEM parser
NAND based Qualcomm platforms have the partition table populated in the
Shared Memory (SMEM). Hence, add a parser for parsing the partitions
from it.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210104041137.113075-3-manivannan.sadhasivam@linaro.org
---
drivers/mtd/parsers/Kconfig | 8 ++
drivers/mtd/parsers/Makefile | 1 +
drivers/mtd/parsers/qcomsmempart.c | 170 +++++++++++++++++++++++++++++++++++++
3 files changed, 179 insertions(+)
create mode 100644 drivers/mtd/parsers/qcomsmempart.c
diff --git a/drivers/mtd/parsers/Kconfig b/drivers/mtd/parsers/Kconfig
index e72354322f628..d90c302290522 100644
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -160,6 +160,14 @@ config MTD_REDBOOT_PARTS_READONLY
'FIS directory' images, enable this option.
endif # MTD_REDBOOT_PARTS
+
+config MTD_QCOMSMEM_PARTS
+ tristate "Qualcomm SMEM NAND flash partition parser"
+ depends on MTD_NAND_QCOM || COMPILE_TEST
+ depends on QCOM_SMEM
+ help
+ This provides support for parsing partitions from Shared Memory (SMEM)
+ for NAND flash on Qualcomm platforms.
config MTD_ROUTERBOOT_PARTS
tristate "RouterBoot flash partition parser"
diff --git a/drivers/mtd/parsers/Makefile b/drivers/mtd/parsers/Makefile
index b0c5f62f9e858..50eb0b0a22105 100644
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -9,4 +9,5 @@ obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
+obj-$(CONFIG_MTD_QCOMSMEM_PARTS) += qcomsmempart.o
obj-$(CONFIG_MTD_ROUTERBOOT_PARTS) += routerbootpart.o
diff --git a/drivers/mtd/parsers/qcomsmempart.c b/drivers/mtd/parsers/qcomsmempart.c
new file mode 100644
index 0000000000000..808cb33d71f8e
--- /dev/null
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Qualcomm SMEM NAND flash partition parser
+ *
+ * Copyright (C) 2020, Linaro Ltd.
+ */
+
+#include <linux/ctype.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/slab.h>
+#include <linux/soc/qcom/smem.h>
+
+#define SMEM_AARM_PARTITION_TABLE 9
+#define SMEM_APPS 0
+
+#define SMEM_FLASH_PART_MAGIC1 0x55ee73aa
+#define SMEM_FLASH_PART_MAGIC2 0xe35ebddb
+#define SMEM_FLASH_PTABLE_V3 3
+#define SMEM_FLASH_PTABLE_V4 4
+#define SMEM_FLASH_PTABLE_MAX_PARTS_V3 16
+#define SMEM_FLASH_PTABLE_MAX_PARTS_V4 48
+#define SMEM_FLASH_PTABLE_HDR_LEN (4 * sizeof(u32))
+#define SMEM_FLASH_PTABLE_NAME_SIZE 16
+
+/**
+ * struct smem_flash_pentry - SMEM Flash partition entry
+ * @name: Name of the partition
+ * @offset: Offset in blocks
+ * @length: Length of the partition in blocks
+ * @attr: Flags for this partition
+ */
+struct smem_flash_pentry {
+ char name[SMEM_FLASH_PTABLE_NAME_SIZE];
+ __le32 offset;
+ __le32 length;
+ u8 attr;
+} __packed __aligned(4);
+
+/**
+ * struct smem_flash_ptable - SMEM Flash partition table
+ * @magic1: Partition table Magic 1
+ * @magic2: Partition table Magic 2
+ * @version: Partition table version
+ * @numparts: Number of partitions in this ptable
+ * @pentry: Flash partition entries belonging to this ptable
+ */
+struct smem_flash_ptable {
+ __le32 magic1;
+ __le32 magic2;
+ __le32 version;
+ __le32 numparts;
+ struct smem_flash_pentry pentry[SMEM_FLASH_PTABLE_MAX_PARTS_V4];
+} __packed __aligned(4);
+
+static int parse_qcomsmem_part(struct mtd_info *mtd,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct smem_flash_pentry *pentry;
+ struct smem_flash_ptable *ptable;
+ size_t len = SMEM_FLASH_PTABLE_HDR_LEN;
+ struct mtd_partition *parts;
+ int ret, i, numparts;
+ char *name, *c;
+
+ pr_debug("Parsing partition table info from SMEM\n");
+ ptable = qcom_smem_get(SMEM_APPS, SMEM_AARM_PARTITION_TABLE, &len);
+ if (IS_ERR(ptable)) {
+ pr_err("Error reading partition table header\n");
+ return PTR_ERR(ptable);
+ }
+
+ /* Verify ptable magic */
+ if (le32_to_cpu(ptable->magic1) != SMEM_FLASH_PART_MAGIC1 ||
+ le32_to_cpu(ptable->magic2) != SMEM_FLASH_PART_MAGIC2) {
+ pr_err("Partition table magic verification failed\n");
+ return -EINVAL;
+ }
+
+ /* Ensure that # of partitions is less than the max we have allocated */
+ numparts = le32_to_cpu(ptable->numparts);
+ if (numparts > SMEM_FLASH_PTABLE_MAX_PARTS_V4) {
+ pr_err("Partition numbers exceed the max limit\n");
+ return -EINVAL;
+ }
+
+ /* Find out length of partition data based on table version */
+ if (le32_to_cpu(ptable->version) <= SMEM_FLASH_PTABLE_V3) {
+ len = SMEM_FLASH_PTABLE_HDR_LEN + SMEM_FLASH_PTABLE_MAX_PARTS_V3 *
+ sizeof(struct smem_flash_pentry);
+ } else if (le32_to_cpu(ptable->version) == SMEM_FLASH_PTABLE_V4) {
+ len = SMEM_FLASH_PTABLE_HDR_LEN + SMEM_FLASH_PTABLE_MAX_PARTS_V4 *
+ sizeof(struct smem_flash_pentry);
+ } else {
+ pr_err("Unknown ptable version (%d)", le32_to_cpu(ptable->version));
+ return -EINVAL;
+ }
+
+ /*
+ * Now that the partition table header has been parsed, verified
+ * and the length of the partition table calculated, read the
+ * complete partition table
+ */
+ ptable = qcom_smem_get(SMEM_APPS, SMEM_AARM_PARTITION_TABLE, &len);
+ if (IS_ERR_OR_NULL(ptable)) {
+ pr_err("Error reading partition table\n");
+ return PTR_ERR(ptable);
+ }
+
+ parts = kcalloc(numparts, sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ for (i = 0; i < numparts; i++) {
+ pentry = &ptable->pentry[i];
+ if (pentry->name[0] == '\0')
+ continue;
+
+ name = kstrdup(pentry->name, GFP_KERNEL);
+ if (!name) {
+ ret = -ENOMEM;
+ goto out_free_parts;
+ }
+
+ /* Convert name to lower case */
+ for (c = name; *c != '\0'; c++)
+ *c = tolower(*c);
+
+ parts[i].name = name;
+ parts[i].offset = le32_to_cpu(pentry->offset) * mtd->erasesize;
+ parts[i].mask_flags = pentry->attr;
+ parts[i].size = le32_to_cpu(pentry->length) * mtd->erasesize;
+ pr_debug("%d: %s offs=0x%08x size=0x%08x attr:0x%08x\n",
+ i, pentry->name, le32_to_cpu(pentry->offset),
+ le32_to_cpu(pentry->length), pentry->attr);
+ }
+
+ pr_debug("SMEM partition table found: ver: %d len: %d\n",
+ le32_to_cpu(ptable->version), numparts);
+ *pparts = parts;
+
+ return numparts;
+
+out_free_parts:
+ while (--i >= 0)
+ kfree(parts[i].name);
+ kfree(parts);
+ *pparts = NULL;
+
+ return ret;
+}
+
+static const struct of_device_id qcomsmem_of_match_table[] = {
+ { .compatible = "qcom,smem-part" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, qcomsmem_of_match_table);
+
+static struct mtd_part_parser mtd_parser_qcomsmem = {
+ .parse_fn = parse_qcomsmem_part,
+ .name = "qcomsmem",
+ .of_match_table = qcomsmem_of_match_table,
+};
+module_mtd_part_parser(mtd_parser_qcomsmem);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
+MODULE_DESCRIPTION("Qualcomm SMEM NAND flash partition parser");
--
cgit 1.2.3-1.el7

24
target/linux/ipq806x/patches-5.10/102-mtd-rootfs-conflicts-with-OpenWrt-auto-mounting.patch Normal file
View File

@ -0,0 +1,24 @@
From 5001f2e1a325b68dbf225bd17f69a4d3d975cca5 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Thu, 9 Mar 2017 09:31:44 +0100
Subject: [PATCH 61/69] mtd: "rootfs" conflicts with OpenWrt auto mounting
Signed-off-by: John Crispin <john@phrozen.org>
---
drivers/mtd/parsers/qcomsmempart.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/mtd/parsers/qcomsmempart.c
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -189,6 +189,11 @@ static int parse_qcomsmem_part(st
parts[i].offset = le32_to_cpu(pentry->offset) * mtd->erasesize;
parts[i].mask_flags = pentry->attr;
parts[i].size = le32_to_cpu(pentry->length) * mtd->erasesize;
+
+ /* "rootfs" conflicts with OpenWrt auto mounting */
+ if (mtd_type_is_nand(mtd) && !strcmp(name, "rootfs"))
+ parts[i].name = "ubi";
+
pr_debug("%d: %s offs=0x%08x size=0x%08x attr:0x%08x\n",
i, pentry->name, le32_to_cpu(pentry->offset),
le32_to_cpu(pentry->length), pentry->attr);

282
target/linux/ipq806x/patches-5.4/0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch
View File

@ -1,282 +0,0 @@
From d8eeb4de90e968ba32d956728c866f20752cf2c3 Mon Sep 17 00:00:00 2001
From: Mathieu Olivari <mathieu@codeaurora.org>
Date: Thu, 9 Mar 2017 08:18:08 +0100
Subject: [PATCH 31/69] mtd: add SMEM parser for QCOM platforms
On QCOM platforms using MTD devices storage (such as IPQ806x), SMEM is
used to store partition layout. This new parser can now be used to read
SMEM and use it to register an MTD layout according to its content.
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>
---
drivers/mtd/parsers/Kconfig | 7 ++
drivers/mtd/parsers/Makefile | 1 +
drivers/mtd/parsers/qcom_smem_part.c | 228 +++++++++++++++++++++++++++++++++++++++++++
3 files changed, 236 insertions(+)
create mode 100644 drivers/mtd/parsers/qcom_smem_part.c
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -138,6 +138,13 @@ config MTD_PARSER_TRX
This driver will parse TRX header and report at least two partitions:
kernel and rootfs.
+config MTD_QCOM_SMEM_PARTS
+ tristate "QCOM SMEM partitioning support"
+ depends on QCOM_SMEM
+ help
+ This provides partitions parser for QCOM devices using SMEM
+ such as IPQ806x.
+
config MTD_SHARPSL_PARTS
tristate "Sharp SL Series NAND flash partition parser"
depends on MTD_NAND_SHARPSL || MTD_NAND_TMIO || COMPILE_TEST
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -11,6 +11,7 @@ ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)
obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
+obj-$(CONFIG_MTD_QCOM_SMEM_PARTS) += qcom_smem_part.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
obj-$(CONFIG_MTD_ROUTERBOOT_PARTS) += routerbootpart.o
--- /dev/null
+++ b/drivers/mtd/parsers/qcom_smem_part.c
@@ -0,0 +1,235 @@
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/spi/spi.h>
+#include <linux/module.h>
+
+#include <linux/soc/qcom/smem.h>
+
+/* Processor/host identifier for the application processor */
+#define SMEM_HOST_APPS 0
+
+/* SMEM items index */
+#define SMEM_AARM_PARTITION_TABLE 9
+#define SMEM_BOOT_FLASH_TYPE 421
+#define SMEM_BOOT_FLASH_BLOCK_SIZE 424
+
+/* SMEM Flash types */
+#define SMEM_FLASH_NAND 2
+#define SMEM_FLASH_SPI 6
+
+#define SMEM_PART_NAME_SZ 16
+#define SMEM_PARTS_MAX 32
+
+struct smem_partition {
+ char name[SMEM_PART_NAME_SZ];
+ __le32 start;
+ __le32 size;
+ __le32 attr;
+};
+
+struct smem_partition_table {
+ u8 magic[8];
+ __le32 version;
+ __le32 len;
+ struct smem_partition parts[SMEM_PARTS_MAX];
+};
+
+/* SMEM Magic values in partition table */
+static const u8 SMEM_PTABLE_MAGIC[] = {
+ 0xaa, 0x73, 0xee, 0x55,
+ 0xdb, 0xbd, 0x5e, 0xe3,
+};
+
+static int qcom_smem_get_flash_blksz(u64 **smem_blksz)
+{
+ size_t size;
+
+ *smem_blksz = qcom_smem_get(SMEM_HOST_APPS, SMEM_BOOT_FLASH_BLOCK_SIZE,
+ &size);
+
+ if (IS_ERR(*smem_blksz)) {
+ pr_err("Unable to read flash blksz from SMEM\n");
+ return -ENOENT;
+ }
+
+ if (size != sizeof(**smem_blksz)) {
+ pr_err("Invalid flash blksz size in SMEM\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qcom_smem_get_flash_type(u64 **smem_flash_type)
+{
+ size_t size;
+
+ *smem_flash_type = qcom_smem_get(SMEM_HOST_APPS, SMEM_BOOT_FLASH_TYPE,
+ &size);
+
+ if (IS_ERR(*smem_flash_type)) {
+ pr_err("Unable to read flash type from SMEM\n");
+ return -ENOENT;
+ }
+
+ if (size != sizeof(**smem_flash_type)) {
+ pr_err("Invalid flash type size in SMEM\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qcom_smem_get_flash_partitions(struct smem_partition_table **pparts)
+{
+ size_t size;
+
+ *pparts = qcom_smem_get(SMEM_HOST_APPS, SMEM_AARM_PARTITION_TABLE,
+ &size);
+
+ if (IS_ERR(*pparts)) {
+ pr_err("Unable to read partition table from SMEM\n");
+ return -ENOENT;
+ }
+
+ return 0;
+}
+
+static int of_dev_node_match(struct device *dev, const void *data)
+{
+ return dev->of_node == data;
+}
+
+static bool is_spi_device(struct device_node *np)
+{
+ struct device *dev;
+
+ dev = bus_find_device(&spi_bus_type, NULL, np, of_dev_node_match);
+ if (!dev)
+ return false;
+
+ put_device(dev);
+ return true;
+}
+
+static int parse_qcom_smem_partitions(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct smem_partition_table *smem_parts;
+ u64 *smem_flash_type, *smem_blksz;
+ struct mtd_partition *mtd_parts;
+ struct device_node *of_node = master->dev.of_node;
+ int i, ret;
+
+ /*
+ * SMEM will only store the partition table of the boot device.
+ * If this is not the boot device, do not return any partition.
+ */
+ ret = qcom_smem_get_flash_type(&smem_flash_type);
+ if (ret < 0)
+ return ret;
+
+ if ((*smem_flash_type == SMEM_FLASH_NAND && !mtd_type_is_nand(master))
+ || (*smem_flash_type == SMEM_FLASH_SPI && !is_spi_device(of_node)))
+ return 0;
+
+ /*
+ * Just for sanity purpose, make sure the block size in SMEM matches the
+ * block size of the MTD device
+ */
+ ret = qcom_smem_get_flash_blksz(&smem_blksz);
+ if (ret < 0)
+ return ret;
+
+ if (*smem_blksz != master->erasesize) {
+ pr_err("SMEM block size differs from MTD block size\n");
+ return -EINVAL;
+ }
+
+ /* Get partition pointer from SMEM */
+ ret = qcom_smem_get_flash_partitions(&smem_parts);
+ if (ret < 0)
+ return ret;
+
+ if (memcmp(SMEM_PTABLE_MAGIC, smem_parts->magic,
+ sizeof(SMEM_PTABLE_MAGIC))) {
+ pr_err("SMEM partition magic invalid\n");
+ return -EINVAL;
+ }
+
+ /* Allocate and populate the mtd structures */
+ mtd_parts = kcalloc(le32_to_cpu(smem_parts->len), sizeof(*mtd_parts),
+ GFP_KERNEL);
+ if (!mtd_parts)
+ return -ENOMEM;
+
+ for (i = 0; i < smem_parts->len; i++) {
+ struct smem_partition *s_part = &smem_parts->parts[i];
+ struct mtd_partition *m_part = &mtd_parts[i];
+
+ m_part->name = s_part->name;
+ m_part->size = le32_to_cpu(s_part->size) * (*smem_blksz);
+ m_part->offset = le32_to_cpu(s_part->start) * (*smem_blksz);
+
+ /*
+ * The last SMEM partition may have its size marked as
+ * something like 0xffffffff, which means "until the end of the
+ * flash device". In this case, truncate it.
+ */
+ if (m_part->offset + m_part->size > master->size)
+ m_part->size = master->size - m_part->offset;
+ }
+
+ *pparts = mtd_parts;
+
+ return smem_parts->len;
+}
+
+static const struct of_device_id qcom_smem_of_match_table[] = {
+ { .compatible = "qcom,smem" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, qcom_smem_of_match_table);
+
+static struct mtd_part_parser qcom_smem_parser = {
+ .owner = THIS_MODULE,
+ .parse_fn = parse_qcom_smem_partitions,
+ .name = "qcom-smem",
+ .of_match_table = qcom_smem_of_match_table,
+};
+
+static int __init qcom_smem_parser_init(void)
+{
+ register_mtd_parser(&qcom_smem_parser);
+ return 0;
+}
+
+static void __exit qcom_smem_parser_exit(void)
+{
+ deregister_mtd_parser(&qcom_smem_parser);
+}
+
+module_init(qcom_smem_parser_init);
+module_exit(qcom_smem_parser_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mathieu Olivari <mathieu@codeaurora.org>");
+MODULE_DESCRIPTION("Parsing code for SMEM based partition tables");

23
target/linux/ipq806x/patches-5.4/0061-mtd-rootfs-conflicts-with-OpenWrt-auto-mounting.patch
View File

@ -1,23 +0,0 @@
From 5001f2e1a325b68dbf225bd17f69a4d3d975cca5 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Thu, 9 Mar 2017 09:31:44 +0100
Subject: [PATCH 61/69] mtd: "rootfs" conflicts with OpenWrt auto mounting
Signed-off-by: John Crispin <john@phrozen.org>
---
drivers/mtd/parsers/qcom_smem_part.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/mtd/parsers/qcom_smem_part.c
+++ b/drivers/mtd/parsers/qcom_smem_part.c
@@ -189,6 +189,10 @@ static int parse_qcom_smem_partitions(st
m_part->size = le32_to_cpu(s_part->size) * (*smem_blksz);
m_part->offset = le32_to_cpu(s_part->start) * (*smem_blksz);
+ /* "rootfs" conflicts with OpenWrt auto mounting */
+ if (mtd_type_is_nand(master) && !strcmp(m_part->name, "rootfs"))
+ m_part->name = "ubi";
+
/*
* The last SMEM partition may have its size marked as
* something like 0xffffffff, which means "until the end of the

301
target/linux/ipq806x/patches-5.4/0002-dmaengine-Add-ADM-driver.patch → target/linux/ipq806x/patches-5.4/100-v5.11-dmaengine-qcom-add_ADM_driver.patch
View File

@ -1,86 +1,95 @@
From 563fa24db4e529c5a3311928d73a8a90531ee527 Mon Sep 17 00:00:00 2001
From: Thomas Pedersen <twp@codeaurora.org>
Date: Mon, 16 May 2016 17:58:51 -0700
Subject: [PATCH 02/69] dmaengine: Add ADM driver
Original patch by Andy Gross.
From 5c9f8c2dbdbe53818bcde6aa6695e1331e5f841f Mon Sep 17 00:00:00 2001
From: Jonathan McDowell <noodles@earth.li>
Date: Sat, 14 Nov 2020 14:02:33 +0000
Subject: dmaengine: qcom: Add ADM driver
Add the DMA engine driver for the QCOM Application Data Mover (ADM) DMA
controller found in the MSM8x60 and IPQ/APQ8064 platforms.
The ADM supports both memory to memory transactions and memory
to/from peripheral device transactions. The controller also provides flow
control capabilities for transactions to/from peripheral devices.
to/from peripheral device transactions. The controller also provides
flow control capabilities for transactions to/from peripheral devices.
The initial release of this driver supports slave transfers to/from peripherals
and also incorporates CRCI (client rate control interface) flow control.
The initial release of this driver supports slave transfers to/from
peripherals and also incorporates CRCI (client rate control interface)
flow control.
The hardware only supports a 32 bit physical address, so specifying
!PHYS_ADDR_T_64BIT gives maximum COMPILE_TEST coverage without having to
spend effort on kludging things in the code that will never actually be
needed on real hardware.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Link: https://lore.kernel.org/r/20201114140233.GM32650@earth.li
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
drivers/dma/qcom/Kconfig | 10 +
drivers/dma/qcom/Kconfig | 11 +
drivers/dma/qcom/Makefile | 1 +
drivers/dma/qcom/qcom_adm.c | 900 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 911 insertions(+)
drivers/dma/qcom/qcom_adm.c | 903 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 915 insertions(+)
create mode 100644 drivers/dma/qcom/qcom_adm.c
diff --git a/drivers/dma/qcom/Kconfig b/drivers/dma/qcom/Kconfig
index 3bcb689162c67..0389d60d2604a 100644
--- a/drivers/dma/qcom/Kconfig
+++ b/drivers/dma/qcom/Kconfig
@@ -28,3 +28,13 @@ config QCOM_HIDMA
(user to kernel, kernel to kernel, etc.). It only supports
memcpy interface. The core is not intended for general
purpose slave DMA.
+
@@ -1,4 +1,15 @@
# SPDX-License-Identifier: GPL-2.0-only
+config QCOM_ADM
+ tristate "Qualcomm ADM support"
+ depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM)
+ depends on (ARCH_QCOM || COMPILE_TEST) && !PHYS_ADDR_T_64BIT
+ select DMA_ENGINE
+ select DMA_VIRTUAL_CHANNELS
+ ---help---
+ Enable support for the Qualcomm ADM DMA controller. This controller
+ provides DMA capabilities for both general purpose and on-chip
+ peripheral devices.
+ help
+ Enable support for the Qualcomm Application Data Mover (ADM) DMA
+ controller, as present on MSM8x60, APQ8064, and IPQ8064 devices.
+ This controller provides DMA capabilities for both general purpose
+ and on-chip peripheral devices.
+
config QCOM_BAM_DMA
tristate "QCOM BAM DMA support"
depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM)
diff --git a/drivers/dma/qcom/Makefile b/drivers/dma/qcom/Makefile
index 1ae92da88b0c9..346e643fbb6db 100644
--- a/drivers/dma/qcom/Makefile
+++ b/drivers/dma/qcom/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_QCOM_HIDMA_MGMT) += hdma_mg
hdma_mgmt-objs := hidma_mgmt.o hidma_mgmt_sys.o
obj-$(CONFIG_QCOM_HIDMA) += hdma.o
hdma-objs := hidma_ll.o hidma.o hidma_dbg.o
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_QCOM_ADM) += qcom_adm.o
obj-$(CONFIG_QCOM_BAM_DMA) += bam_dma.o
obj-$(CONFIG_QCOM_HIDMA_MGMT) += hdma_mgmt.o
hdma_mgmt-objs := hidma_mgmt.o hidma_mgmt_sys.o
diff --git a/drivers/dma/qcom/qcom_adm.c b/drivers/dma/qcom/qcom_adm.c
new file mode 100644
index 0000000000000..9b6f8e050ecce
--- /dev/null
+++ b/drivers/dma/qcom/qcom_adm.c
@@ -0,0 +1,914 @@
@@ -0,0 +1,903 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_dma.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/clk.h>
+#include <linux/dmaengine.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+
+#include "../dmaengine.h"
+#include "../virt-dma.h"
@ -90,10 +99,10 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+#define ADM_CI_MULTI 0x4
+#define ADM_CRCI_MULTI 0x4
+#define ADM_EE_MULTI 0x800
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * chan)
+#define ADM_EE_OFFS(ee) (ADM_EE_MULTI * ee)
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * (chan))
+#define ADM_EE_OFFS(ee) (ADM_EE_MULTI * (ee))
+#define ADM_CHAN_EE_OFFS(chan, ee) (ADM_CHAN_OFFS(chan) + ADM_EE_OFFS(ee))
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * chan)
+#define ADM_CHAN_OFFS(chan) (ADM_CHAN_MULTI * (chan))
+#define ADM_CI_OFFS(ci) (ADM_CHAN_OFF(ci))
+#define ADM_CH_CMD_PTR(chan, ee) (ADM_CHAN_EE_OFFS(chan, ee))
+#define ADM_CH_RSLT(chan, ee) (0x40 + ADM_CHAN_EE_OFFS(chan, ee))
@ -102,62 +111,62 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+#define ADM_CH_CONF(chan) (0x240 + ADM_CHAN_OFFS(chan))
+#define ADM_CH_RSLT_CONF(chan, ee) (0x300 + ADM_CHAN_EE_OFFS(chan, ee))
+#define ADM_SEC_DOMAIN_IRQ_STATUS(ee) (0x380 + ADM_EE_OFFS(ee))
+#define ADM_CI_CONF(ci) (0x390 + ci * ADM_CI_MULTI)
+#define ADM_CI_CONF(ci) (0x390 + (ci) * ADM_CI_MULTI)
+#define ADM_GP_CTL 0x3d8
+#define ADM_CRCI_CTL(crci, ee) (0x400 + crci * ADM_CRCI_MULTI + \
+#define ADM_CRCI_CTL(crci, ee) (0x400 + (crci) * ADM_CRCI_MULTI + \
+ ADM_EE_OFFS(ee))
+
+/* channel status */
+#define ADM_CH_STATUS_VALID BIT(1)
+#define ADM_CH_STATUS_VALID BIT(1)
+
+/* channel result */
+#define ADM_CH_RSLT_VALID BIT(31)
+#define ADM_CH_RSLT_ERR BIT(3)
+#define ADM_CH_RSLT_FLUSH BIT(2)
+#define ADM_CH_RSLT_TPD BIT(1)
+#define ADM_CH_RSLT_VALID BIT(31)
+#define ADM_CH_RSLT_ERR BIT(3)
+#define ADM_CH_RSLT_FLUSH BIT(2)
+#define ADM_CH_RSLT_TPD BIT(1)
+
+/* channel conf */
+#define ADM_CH_CONF_SHADOW_EN BIT(12)
+#define ADM_CH_CONF_MPU_DISABLE BIT(11)
+#define ADM_CH_CONF_PERM_MPU_CONF BIT(9)
+#define ADM_CH_CONF_FORCE_RSLT_EN BIT(7)
+#define ADM_CH_CONF_SEC_DOMAIN(ee) (((ee & 0x3) << 4) | ((ee & 0x4) << 11))
+#define ADM_CH_CONF_SEC_DOMAIN(ee) ((((ee) & 0x3) << 4) | (((ee) & 0x4) << 11))
+
+/* channel result conf */
+#define ADM_CH_RSLT_CONF_FLUSH_EN BIT(1)
+#define ADM_CH_RSLT_CONF_IRQ_EN BIT(0)
+
+/* CRCI CTL */
+#define ADM_CRCI_CTL_MUX_SEL BIT(18)
+#define ADM_CRCI_CTL_RST BIT(17)
+#define ADM_CRCI_CTL_MUX_SEL BIT(18)
+#define ADM_CRCI_CTL_RST BIT(17)
+
+/* CI configuration */
+#define ADM_CI_RANGE_END(x) (x << 24)
+#define ADM_CI_RANGE_START(x) (x << 16)
+#define ADM_CI_BURST_4_WORDS BIT(2)
+#define ADM_CI_BURST_8_WORDS BIT(3)
+#define ADM_CI_RANGE_END(x) ((x) << 24)
+#define ADM_CI_RANGE_START(x) ((x) << 16)
+#define ADM_CI_BURST_4_WORDS BIT(2)
+#define ADM_CI_BURST_8_WORDS BIT(3)
+
+/* GP CTL */
+#define ADM_GP_CTL_LP_EN BIT(12)
+#define ADM_GP_CTL_LP_CNT(x) (x << 8)
+#define ADM_GP_CTL_LP_EN BIT(12)
+#define ADM_GP_CTL_LP_CNT(x) ((x) << 8)
+
+/* Command pointer list entry */
+#define ADM_CPLE_LP BIT(31)
+#define ADM_CPLE_CMD_PTR_LIST BIT(29)
+#define ADM_CPLE_LP BIT(31)
+#define ADM_CPLE_CMD_PTR_LIST BIT(29)
+
+/* Command list entry */
+#define ADM_CMD_LC BIT(31)
+#define ADM_CMD_DST_CRCI(n) (((n) & 0xf) << 7)
+#define ADM_CMD_SRC_CRCI(n) (((n) & 0xf) << 3)
+#define ADM_CMD_LC BIT(31)
+#define ADM_CMD_DST_CRCI(n) (((n) & 0xf) << 7)
+#define ADM_CMD_SRC_CRCI(n) (((n) & 0xf) << 3)
+
+#define ADM_CMD_TYPE_SINGLE 0x0
+#define ADM_CMD_TYPE_BOX 0x3
+#define ADM_CMD_TYPE_SINGLE 0x0
+#define ADM_CMD_TYPE_BOX 0x3
+
+#define ADM_CRCI_MUX_SEL BIT(4)
+#define ADM_DESC_ALIGN 8
+#define ADM_MAX_XFER (SZ_64K-1)
+#define ADM_MAX_ROWS (SZ_64K-1)
+#define ADM_MAX_CHANNELS 16
+#define ADM_CRCI_MUX_SEL BIT(4)
+#define ADM_DESC_ALIGN 8
+#define ADM_MAX_XFER (SZ_64K - 1)
+#define ADM_MAX_ROWS (SZ_64K - 1)
+#define ADM_MAX_CHANNELS 16
+
+struct adm_desc_hw_box {
+ u32 cmd;
@ -255,7 +264,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ case 32:
+ case 64:
+ case 128:
+ ret = ffs(burst>>4) - 1;
+ ret = ffs(burst >> 4) - 1;
+ break;
+ case 192:
+ ret = 4;
@ -281,9 +290,10 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * @burst: Burst size of transaction
+ * @direction: DMA transfer direction
+ */
+static void *adm_process_fc_descriptors(struct adm_chan *achan,
+ void *desc, struct scatterlist *sg, u32 crci, u32 burst,
+ enum dma_transfer_direction direction)
+static void *adm_process_fc_descriptors(struct adm_chan *achan, void *desc,
+ struct scatterlist *sg, u32 crci,
+ u32 burst,
+ enum dma_transfer_direction direction)
+{
+ struct adm_desc_hw_box *box_desc = NULL;
+ struct adm_desc_hw_single *single_desc;
@ -349,9 +359,9 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * @sg: Scatterlist entry
+ * @direction: DMA transfer direction
+ */
+static void *adm_process_non_fc_descriptors(struct adm_chan *achan,
+ void *desc, struct scatterlist *sg,
+ enum dma_transfer_direction direction)
+static void *adm_process_non_fc_descriptors(struct adm_chan *achan, void *desc,
+ struct scatterlist *sg,
+ enum dma_transfer_direction direction)
+{
+ struct adm_desc_hw_single *single_desc;
+ u32 remainder = sg_dma_len(sg);
@ -398,9 +408,11 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * @context: transfer context (unused)
+ */
+static struct dma_async_tx_descriptor *adm_prep_slave_sg(struct dma_chan *chan,
+ struct scatterlist *sgl, unsigned int sg_len,
+ enum dma_transfer_direction direction, unsigned long flags,
+ void *context)
+ struct scatterlist *sgl,
+ unsigned int sg_len,
+ enum dma_transfer_direction direction,
+ unsigned long flags,
+ void *context)
+{
+ struct adm_chan *achan = to_adm_chan(chan);
+ struct adm_device *adev = achan->adev;
@ -427,7 +439,6 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* if using flow control, validate burst and crci values */
+ if (achan->slave.device_fc) {
+
+ blk_size = adm_get_blksize(burst);
+ if (blk_size < 0) {
+ dev_err(adev->dev, "invalid burst value: %d\n",
@ -455,7 +466,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ }
+ }
+
+ async_desc = kzalloc(sizeof(*async_desc), GFP_ATOMIC);
+ async_desc = kzalloc(sizeof(*async_desc), GFP_NOWAIT);
+ if (!async_desc)
+ return ERR_PTR(-ENOMEM);
+
@ -468,7 +479,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ box_count * sizeof(struct adm_desc_hw_box) +
+ sizeof(*cple) + 2 * ADM_DESC_ALIGN;
+
+ async_desc->cpl = kzalloc(async_desc->dma_len, GFP_ATOMIC);
+ async_desc->cpl = kzalloc(async_desc->dma_len, GFP_NOWAIT);
+ if (!async_desc->cpl)
+ goto free;
+
@ -483,10 +494,10 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ if (achan->slave.device_fc)
+ desc = adm_process_fc_descriptors(achan, desc, sg, crci,
+ burst, direction);
+ burst, direction);
+ else
+ desc = adm_process_non_fc_descriptors(achan, desc, sg,
+ direction);
+ direction);
+ }
+
+ async_desc->dma_addr = dma_map_single(adev->dev, async_desc->cpl,
@ -532,7 +543,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* send flush command to terminate current transaction */
+ writel_relaxed(0x0,
+ adev->regs + ADM_CH_FLUSH_STATE0(achan->id, adev->ee));
+ adev->regs + ADM_CH_FLUSH_STATE0(achan->id, adev->ee));
+
+ spin_unlock_irqrestore(&achan->vc.lock, flags);
+
@ -586,7 +597,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ adev->regs + ADM_CH_CONF(achan->id));
+
+ writel(ADM_CH_RSLT_CONF_IRQ_EN | ADM_CH_RSLT_CONF_FLUSH_EN,
+ adev->regs + ADM_CH_RSLT_CONF(achan->id, adev->ee));
+ adev->regs + ADM_CH_RSLT_CONF(achan->id, adev->ee));
+
+ achan->initialized = 1;
+ }
@ -594,7 +605,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ /* set the crci block size if this transaction requires CRCI */
+ if (async_desc->crci) {
+ writel(async_desc->mux | async_desc->blk_size,
+ adev->regs + ADM_CRCI_CTL(async_desc->crci, adev->ee));
+ adev->regs + ADM_CRCI_CTL(async_desc->crci, adev->ee));
+ }
+
+ /* make sure IRQ enable doesn't get reordered */
@ -602,7 +613,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* write next command list out to the CMD FIFO */
+ writel(ALIGN(async_desc->dma_addr, ADM_DESC_ALIGN) >> 3,
+ adev->regs + ADM_CH_CMD_PTR(achan->id, adev->ee));
+ adev->regs + ADM_CH_CMD_PTR(achan->id, adev->ee));
+}
+
+/**
@ -628,7 +639,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ if (srcs & BIT(i)) {
+ status = readl_relaxed(adev->regs +
+ ADM_CH_STATUS_SD(i, adev->ee));
+ ADM_CH_STATUS_SD(i, adev->ee));
+
+ /* if no result present, skip */
+ if (!(status & ADM_CH_STATUS_VALID))
@ -673,7 +684,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * Return status of dma transaction
+ */
+static enum dma_status adm_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
+ struct dma_tx_state *txstate)
+ struct dma_tx_state *txstate)
+{
+ struct adm_chan *achan = to_adm_chan(chan);
+ struct virt_dma_desc *vd;
@ -697,7 +708,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ * residue is either the full length if it is in the issued list, or 0
+ * if it is in progress. We have no reliable way of determining
+ * anything inbetween
+ */
+ */
+ dma_set_residue(txstate, residue);
+
+ if (achan->error)
@ -741,7 +752,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+}
+
+static void adm_channel_init(struct adm_device *adev, struct adm_chan *achan,
+ u32 index)
+ u32 index)
+{
+ achan->id = index;
+ achan->adev = adev;
@ -753,7 +764,6 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+static int adm_dma_probe(struct platform_device *pdev)
+{
+ struct adm_device *adev;
+ struct resource *iores;
+ int ret;
+ u32 i;
+
@ -763,8 +773,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ adev->dev = &pdev->dev;
+
+ iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ adev->regs = devm_ioremap_resource(&pdev->dev, iores);
+ adev->regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(adev->regs))
+ return PTR_ERR(adev->regs);
+
@ -782,64 +791,60 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ if (IS_ERR(adev->core_clk))
+ return PTR_ERR(adev->core_clk);
+
+ adev->iface_clk = devm_clk_get(adev->dev, "iface");
+ if (IS_ERR(adev->iface_clk))
+ return PTR_ERR(adev->iface_clk);
+
+ adev->clk_reset = devm_reset_control_get_exclusive(&pdev->dev, "clk");
+ if (IS_ERR(adev->clk_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 reset\n");
+ return PTR_ERR(adev->clk_reset);
+ }
+
+ adev->c0_reset = devm_reset_control_get_exclusive(&pdev->dev, "c0");
+ if (IS_ERR(adev->c0_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C0 reset\n");
+ return PTR_ERR(adev->c0_reset);
+ }
+
+ adev->c1_reset = devm_reset_control_get_exclusive(&pdev->dev, "c1");
+ if (IS_ERR(adev->c1_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C1 reset\n");
+ return PTR_ERR(adev->c1_reset);
+ }
+
+ adev->c2_reset = devm_reset_control_get_exclusive(&pdev->dev, "c2");
+ if (IS_ERR(adev->c2_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C2 reset\n");
+ return PTR_ERR(adev->c2_reset);
+ }
+
+ ret = clk_prepare_enable(adev->core_clk);
+ if (ret) {
+ dev_err(adev->dev, "failed to prepare/enable core clock\n");
+ return ret;
+ }
+
+ adev->iface_clk = devm_clk_get(adev->dev, "iface");
+ if (IS_ERR(adev->iface_clk)) {
+ ret = PTR_ERR(adev->iface_clk);
+ goto err_disable_core_clk;
+ }
+
+ ret = clk_prepare_enable(adev->iface_clk);
+ if (ret) {
+ dev_err(adev->dev, "failed to prepare/enable iface clock\n");
+ goto err_disable_core_clk;
+ }
+
+ adev->clk_reset = devm_reset_control_get(&pdev->dev, "clk");
+ if (IS_ERR(adev->clk_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 reset\n");
+ ret = PTR_ERR(adev->clk_reset);
+ goto err_disable_clks;
+ }
+
+ adev->c0_reset = devm_reset_control_get(&pdev->dev, "c0");
+ if (IS_ERR(adev->c0_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C0 reset\n");
+ ret = PTR_ERR(adev->c0_reset);
+ goto err_disable_clks;
+ }
+
+ adev->c1_reset = devm_reset_control_get(&pdev->dev, "c1");
+ if (IS_ERR(adev->c1_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C1 reset\n");
+ ret = PTR_ERR(adev->c1_reset);
+ goto err_disable_clks;
+ }
+
+ adev->c2_reset = devm_reset_control_get(&pdev->dev, "c2");
+ if (IS_ERR(adev->c2_reset)) {
+ dev_err(adev->dev, "failed to get ADM0 C2 reset\n");
+ ret = PTR_ERR(adev->c2_reset);
+ goto err_disable_clks;
+ }
+
+ reset_control_assert(adev->clk_reset);
+ reset_control_assert(adev->c0_reset);
+ reset_control_assert(adev->c1_reset);
+ reset_control_assert(adev->c2_reset);
+
+ udelay(2);
+
+ reset_control_deassert(adev->clk_reset);
+ reset_control_deassert(adev->c0_reset);
+ reset_control_deassert(adev->c1_reset);
+ reset_control_deassert(adev->c2_reset);
+
+ adev->channels = devm_kcalloc(adev->dev, ADM_MAX_CHANNELS,
+ sizeof(*adev->channels), GFP_KERNEL);
+ sizeof(*adev->channels), GFP_KERNEL);
+
+ if (!adev->channels) {
+ ret = -ENOMEM;
@ -859,16 +864,16 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+
+ /* configure client interfaces */
+ writel(ADM_CI_RANGE_START(0x40) | ADM_CI_RANGE_END(0xb0) |
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(0));
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(0));
+ writel(ADM_CI_RANGE_START(0x2a) | ADM_CI_RANGE_END(0x2c) |
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(1));
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(1));
+ writel(ADM_CI_RANGE_START(0x12) | ADM_CI_RANGE_END(0x28) |
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(2));
+ ADM_CI_BURST_8_WORDS, adev->regs + ADM_CI_CONF(2));
+ writel(ADM_GP_CTL_LP_EN | ADM_GP_CTL_LP_CNT(0xf),
+ adev->regs + ADM_GP_CTL);
+ adev->regs + ADM_GP_CTL);
+
+ ret = devm_request_irq(adev->dev, adev->irq, adm_dma_irq,
+ 0, "adm_dma", adev);
+ 0, "adm_dma", adev);
+ if (ret)
+ goto err_disable_clks;
+
@ -933,6 +938,7 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+ /* mask IRQs for this channel/EE pair */
+ writel(0, adev->regs + ADM_CH_RSLT_CONF(achan->id, adev->ee));
+
+ tasklet_kill(&adev->channels[i].vc.task);
+ adm_terminate_all(&adev->channels[i].vc.chan);
+ }
+
@ -964,3 +970,6 @@ Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+MODULE_AUTHOR("Andy Gross <agross@codeaurora.org>");
+MODULE_DESCRIPTION("QCOM ADM DMA engine driver");
+MODULE_LICENSE("GPL v2");
--
cgit 1.2.3-1.el7

227
target/linux/ipq806x/patches-5.4/101-5.12-mtd-parsers-Add-Qcom-SMEM-parser.patch Normal file
View File

@ -0,0 +1,227 @@
From 803eb124e1a64e42888542c3444bfe6dac412c7f Mon Sep 17 00:00:00 2001
From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Date: Mon, 4 Jan 2021 09:41:35 +0530
Subject: mtd: parsers: Add Qcom SMEM parser
NAND based Qualcomm platforms have the partition table populated in the
Shared Memory (SMEM). Hence, add a parser for parsing the partitions
from it.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210104041137.113075-3-manivannan.sadhasivam@linaro.org
---
drivers/mtd/parsers/Kconfig | 8 ++
drivers/mtd/parsers/Makefile | 1 +
drivers/mtd/parsers/qcomsmempart.c | 170 +++++++++++++++++++++++++++++++++++++
3 files changed, 179 insertions(+)
create mode 100644 drivers/mtd/parsers/qcomsmempart.c
diff --git a/drivers/mtd/parsers/Kconfig b/drivers/mtd/parsers/Kconfig
index e72354322f628..d90c302290522 100644
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -160,6 +160,14 @@ config MTD_REDBOOT_PARTS_READONLY
'FIS directory' images, enable this option.
endif # MTD_REDBOOT_PARTS
+
+config MTD_QCOMSMEM_PARTS
+ tristate "Qualcomm SMEM NAND flash partition parser"
+ depends on MTD_NAND_QCOM || COMPILE_TEST
+ depends on QCOM_SMEM
+ help
+ This provides support for parsing partitions from Shared Memory (SMEM)
+ for NAND flash on Qualcomm platforms.
config MTD_ROUTERBOOT_PARTS
tristate "RouterBoot flash partition parser"
diff --git a/drivers/mtd/parsers/Makefile b/drivers/mtd/parsers/Makefile
index b0c5f62f9e858..50eb0b0a22105 100644
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -9,4 +9,5 @@ obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
+obj-$(CONFIG_MTD_QCOMSMEM_PARTS) += qcomsmempart.o
obj-$(CONFIG_MTD_ROUTERBOOT_PARTS) += routerbootpart.o
diff --git a/drivers/mtd/parsers/qcomsmempart.c b/drivers/mtd/parsers/qcomsmempart.c
new file mode 100644
index 0000000000000..808cb33d71f8e
--- /dev/null
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Qualcomm SMEM NAND flash partition parser
+ *
+ * Copyright (C) 2020, Linaro Ltd.
+ */
+
+#include <linux/ctype.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/slab.h>
+#include <linux/soc/qcom/smem.h>
+
+#define SMEM_AARM_PARTITION_TABLE 9
+#define SMEM_APPS 0
+
+#define SMEM_FLASH_PART_MAGIC1 0x55ee73aa
+#define SMEM_FLASH_PART_MAGIC2 0xe35ebddb
+#define SMEM_FLASH_PTABLE_V3 3
+#define SMEM_FLASH_PTABLE_V4 4
+#define SMEM_FLASH_PTABLE_MAX_PARTS_V3 16
+#define SMEM_FLASH_PTABLE_MAX_PARTS_V4 48
+#define SMEM_FLASH_PTABLE_HDR_LEN (4 * sizeof(u32))
+#define SMEM_FLASH_PTABLE_NAME_SIZE 16
+
+/**
+ * struct smem_flash_pentry - SMEM Flash partition entry
+ * @name: Name of the partition
+ * @offset: Offset in blocks
+ * @length: Length of the partition in blocks
+ * @attr: Flags for this partition
+ */
+struct smem_flash_pentry {
+ char name[SMEM_FLASH_PTABLE_NAME_SIZE];
+ __le32 offset;
+ __le32 length;
+ u8 attr;
+} __packed __aligned(4);
+
+/**
+ * struct smem_flash_ptable - SMEM Flash partition table
+ * @magic1: Partition table Magic 1
+ * @magic2: Partition table Magic 2
+ * @version: Partition table version
+ * @numparts: Number of partitions in this ptable
+ * @pentry: Flash partition entries belonging to this ptable
+ */
+struct smem_flash_ptable {
+ __le32 magic1;
+ __le32 magic2;
+ __le32 version;
+ __le32 numparts;
+ struct smem_flash_pentry pentry[SMEM_FLASH_PTABLE_MAX_PARTS_V4];
+} __packed __aligned(4);
+
+static int parse_qcomsmem_part(struct mtd_info *mtd,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct smem_flash_pentry *pentry;
+ struct smem_flash_ptable *ptable;
+ size_t len = SMEM_FLASH_PTABLE_HDR_LEN;
+ struct mtd_partition *parts;
+ int ret, i, numparts;
+ char *name, *c;
+
+ pr_debug("Parsing partition table info from SMEM\n");
+ ptable = qcom_smem_get(SMEM_APPS, SMEM_AARM_PARTITION_TABLE, &len);
+ if (IS_ERR(ptable)) {
+ pr_err("Error reading partition table header\n");
+ return PTR_ERR(ptable);
+ }
+
+ /* Verify ptable magic */
+ if (le32_to_cpu(ptable->magic1) != SMEM_FLASH_PART_MAGIC1 ||
+ le32_to_cpu(ptable->magic2) != SMEM_FLASH_PART_MAGIC2) {
+ pr_err("Partition table magic verification failed\n");
+ return -EINVAL;
+ }
+
+ /* Ensure that # of partitions is less than the max we have allocated */
+ numparts = le32_to_cpu(ptable->numparts);
+ if (numparts > SMEM_FLASH_PTABLE_MAX_PARTS_V4) {
+ pr_err("Partition numbers exceed the max limit\n");
+ return -EINVAL;
+ }
+
+ /* Find out length of partition data based on table version */
+ if (le32_to_cpu(ptable->version) <= SMEM_FLASH_PTABLE_V3) {
+ len = SMEM_FLASH_PTABLE_HDR_LEN + SMEM_FLASH_PTABLE_MAX_PARTS_V3 *
+ sizeof(struct smem_flash_pentry);
+ } else if (le32_to_cpu(ptable->version) == SMEM_FLASH_PTABLE_V4) {
+ len = SMEM_FLASH_PTABLE_HDR_LEN + SMEM_FLASH_PTABLE_MAX_PARTS_V4 *
+ sizeof(struct smem_flash_pentry);
+ } else {
+ pr_err("Unknown ptable version (%d)", le32_to_cpu(ptable->version));
+ return -EINVAL;
+ }
+
+ /*
+ * Now that the partition table header has been parsed, verified
+ * and the length of the partition table calculated, read the
+ * complete partition table
+ */
+ ptable = qcom_smem_get(SMEM_APPS, SMEM_AARM_PARTITION_TABLE, &len);
+ if (IS_ERR_OR_NULL(ptable)) {
+ pr_err("Error reading partition table\n");
+ return PTR_ERR(ptable);
+ }
+
+ parts = kcalloc(numparts, sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ for (i = 0; i < numparts; i++) {
+ pentry = &ptable->pentry[i];
+ if (pentry->name[0] == '\0')
+ continue;
+
+ name = kstrdup(pentry->name, GFP_KERNEL);
+ if (!name) {
+ ret = -ENOMEM;
+ goto out_free_parts;
+ }
+
+ /* Convert name to lower case */
+ for (c = name; *c != '\0'; c++)
+ *c = tolower(*c);
+
+ parts[i].name = name;
+ parts[i].offset = le32_to_cpu(pentry->offset) * mtd->erasesize;
+ parts[i].mask_flags = pentry->attr;
+ parts[i].size = le32_to_cpu(pentry->length) * mtd->erasesize;
+ pr_debug("%d: %s offs=0x%08x size=0x%08x attr:0x%08x\n",
+ i, pentry->name, le32_to_cpu(pentry->offset),
+ le32_to_cpu(pentry->length), pentry->attr);
+ }
+
+ pr_debug("SMEM partition table found: ver: %d len: %d\n",
+ le32_to_cpu(ptable->version), numparts);
+ *pparts = parts;
+
+ return numparts;
+
+out_free_parts:
+ while (--i >= 0)
+ kfree(parts[i].name);
+ kfree(parts);
+ *pparts = NULL;
+
+ return ret;
+}
+
+static const struct of_device_id qcomsmem_of_match_table[] = {
+ { .compatible = "qcom,smem-part" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, qcomsmem_of_match_table);
+
+static struct mtd_part_parser mtd_parser_qcomsmem = {
+ .parse_fn = parse_qcomsmem_part,
+ .name = "qcomsmem",
+ .of_match_table = qcomsmem_of_match_table,
+};
+module_mtd_part_parser(mtd_parser_qcomsmem);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
+MODULE_DESCRIPTION("Qualcomm SMEM NAND flash partition parser");
--
cgit 1.2.3-1.el7

24
target/linux/ipq806x/patches-5.4/102-mtd-rootfs-conflicts-with-OpenWrt-auto-mounting.patch Normal file
View File

@ -0,0 +1,24 @@
From 5001f2e1a325b68dbf225bd17f69a4d3d975cca5 Mon Sep 17 00:00:00 2001
From: John Crispin <john@phrozen.org>
Date: Thu, 9 Mar 2017 09:31:44 +0100
Subject: [PATCH 61/69] mtd: "rootfs" conflicts with OpenWrt auto mounting
Signed-off-by: John Crispin <john@phrozen.org>
---
drivers/mtd/parsers/qcomsmempart.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/mtd/parsers/qcomsmempart.c
+++ b/drivers/mtd/parsers/qcomsmempart.c
@@ -132,6 +132,11 @@ static int parse_qcomsmem_part(struct mt
parts[i].offset = le32_to_cpu(pentry->offset) * mtd->erasesize;
parts[i].mask_flags = pentry->attr;
parts[i].size = le32_to_cpu(pentry->length) * mtd->erasesize;
+
+ /* "rootfs" conflicts with OpenWrt auto mounting */
+ if (mtd_type_is_nand(mtd) && !strcmp(name, "rootfs"))
+ parts[i].name = "ubi";
+
pr_debug("%d: %s offs=0x%08x size=0x%08x attr:0x%08x\n",
i, pentry->name, le32_to_cpu(pentry->offset),
le32_to_cpu(pentry->length), pentry->attr);