[PATCH v4 18/39] board: dragonboard410c: import board code from mach-snapdragon
Caleb Connolly
caleb.connolly at linaro.org
Thu Feb 15 21:52:36 CET 2024
Some of the db410c board support code was written to be generic and
placed in mach-snapdragon. However, as the db410c is the only board
using this, move the code out of mach-snapdragon. This makes is more
obvious what code is relevant for which targets and helps tidy things up
a little more.
Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
---
arch/arm/mach-snapdragon/Makefile | 2 -
arch/arm/mach-snapdragon/dram.c | 99 ------------------------
arch/arm/mach-snapdragon/include/mach/dram.h | 12 ---
arch/arm/mach-snapdragon/include/mach/misc.h | 13 ----
arch/arm/mach-snapdragon/misc.c | 55 -------------
board/qualcomm/dragonboard410c/Makefile | 2 +-
board/qualcomm/dragonboard410c/dragonboard410c.c | 48 +++++++++++-
7 files changed, 45 insertions(+), 186 deletions(-)
diff --git a/arch/arm/mach-snapdragon/Makefile b/arch/arm/mach-snapdragon/Makefile
index 3a3a297c1768..d02432df8b04 100644
--- a/arch/arm/mach-snapdragon/Makefile
+++ b/arch/arm/mach-snapdragon/Makefile
@@ -6,6 +6,4 @@ obj-$(CONFIG_SDM845) += sysmap-sdm845.o
obj-$(CONFIG_SDM845) += init_sdm845.o
obj-$(CONFIG_TARGET_DRAGONBOARD820C) += sysmap-apq8096.o
obj-$(CONFIG_TARGET_DRAGONBOARD410C) += sysmap-apq8016.o
-obj-y += misc.o
-obj-y += dram.o
obj-$(CONFIG_TARGET_QCS404EVB) += sysmap-qcs404.o
diff --git a/arch/arm/mach-snapdragon/dram.c b/arch/arm/mach-snapdragon/dram.c
deleted file mode 100644
index 499dfdf0da6e..000000000000
--- a/arch/arm/mach-snapdragon/dram.c
+++ /dev/null
@@ -1,99 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Onboard memory detection for Snapdragon boards
- *
- * (C) Copyright 2018 Ramon Fried <ramon.fried at gmail.com>
- *
- */
-
-#include <common.h>
-#include <dm.h>
-#include <log.h>
-#include <part.h>
-#include <smem.h>
-#include <fdt_support.h>
-#include <asm/arch/dram.h>
-
-#define SMEM_USABLE_RAM_PARTITION_TABLE 402
-#define RAM_PART_NAME_LENGTH 16
-#define RAM_NUM_PART_ENTRIES 32
-#define CATEGORY_SDRAM 0x0E
-#define TYPE_SYSMEM 0x01
-
-struct smem_ram_ptable_hdr {
- u32 magic[2];
- u32 version;
- u32 reserved;
- u32 len;
-} __attribute__ ((__packed__));
-
-struct smem_ram_ptn {
- char name[RAM_PART_NAME_LENGTH];
- u64 start;
- u64 size;
- u32 attr;
- u32 category;
- u32 domain;
- u32 type;
- u32 num_partitions;
- u32 reserved[3];
-} __attribute__ ((__packed__));
-
-struct smem_ram_ptable {
- struct smem_ram_ptable_hdr hdr;
- u32 reserved; /* Added for 8 bytes alignment of header */
- struct smem_ram_ptn parts[RAM_NUM_PART_ENTRIES];
-} __attribute__ ((__packed__));
-
-#ifndef MEMORY_BANKS_MAX
-#define MEMORY_BANKS_MAX 4
-#endif
-
-int msm_fixup_memory(void *blob)
-{
- u64 bank_start[MEMORY_BANKS_MAX];
- u64 bank_size[MEMORY_BANKS_MAX];
- size_t size;
- int i;
- int count = 0;
- struct udevice *smem;
- int ret;
- struct smem_ram_ptable *ram_ptable;
- struct smem_ram_ptn *p;
-
- ret = uclass_get_device_by_name(UCLASS_SMEM, "smem", &smem);
- if (ret < 0) {
- printf("Failed to find SMEM node. Check device tree\n");
- return 0;
- }
-
- ram_ptable = smem_get(smem, -1, SMEM_USABLE_RAM_PARTITION_TABLE, &size);
-
- if (!ram_ptable) {
- printf("Failed to find SMEM partition.\n");
- return -ENODEV;
- }
-
- /* Check validy of RAM */
- for (i = 0; i < RAM_NUM_PART_ENTRIES; i++) {
- p = &ram_ptable->parts[i];
- if (p->category == CATEGORY_SDRAM && p->type == TYPE_SYSMEM) {
- bank_start[count] = p->start;
- bank_size[count] = p->size;
- debug("Detected memory bank %u: start: 0x%llx size: 0x%llx\n",
- count, p->start, p->size);
- count++;
- }
- }
-
- if (!count) {
- printf("Failed to detect any memory bank\n");
- return -ENODEV;
- }
-
- ret = fdt_fixup_memory_banks(blob, bank_start, bank_size, count);
- if (ret)
- return ret;
-
- return 0;
-}
diff --git a/arch/arm/mach-snapdragon/include/mach/dram.h b/arch/arm/mach-snapdragon/include/mach/dram.h
deleted file mode 100644
index 0a9eedda414c..000000000000
--- a/arch/arm/mach-snapdragon/include/mach/dram.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Snapdragon DRAM
- * Copyright (C) 2018 Ramon Fried <ramon.fried at gmail.com>
- */
-
-#ifndef DRAM_H
-#define DRAM_H
-
-int msm_fixup_memory(void *blob);
-
-#endif
diff --git a/arch/arm/mach-snapdragon/include/mach/misc.h b/arch/arm/mach-snapdragon/include/mach/misc.h
deleted file mode 100644
index c60e3e472470..000000000000
--- a/arch/arm/mach-snapdragon/include/mach/misc.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Snapdragon DRAM
- * Copyright (C) 2018 Ramon Fried <ramon.fried at gmail.com>
- */
-
-#ifndef MISC_H
-#define MISC_H
-
-u32 msm_board_serial(void);
-void msm_generate_mac_addr(u8 *mac);
-
-#endif
diff --git a/arch/arm/mach-snapdragon/misc.c b/arch/arm/mach-snapdragon/misc.c
deleted file mode 100644
index 7d452f4529b7..000000000000
--- a/arch/arm/mach-snapdragon/misc.c
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Miscellaneous Snapdragon functionality
- *
- * (C) Copyright 2018 Ramon Fried <ramon.fried at gmail.com>
- *
- */
-
-#include <common.h>
-#include <mmc.h>
-#include <asm/arch/misc.h>
-#include <asm/unaligned.h>
-
-/* UNSTUFF_BITS macro taken from Linux Kernel: drivers/mmc/core/sd.c */
-#define UNSTUFF_BITS(resp, start, size) \
- ({ \
- const int __size = size; \
- const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
- const int __off = 3 - ((start) / 32); \
- const int __shft = (start) & 31; \
- u32 __res; \
- \
- __res = resp[__off] >> __shft; \
- if (__size + __shft > 32) \
- __res |= resp[__off - 1] << ((32 - __shft) % 32); \
- __res & __mask; \
- })
-
-u32 msm_board_serial(void)
-{
- struct mmc *mmc_dev;
-
- mmc_dev = find_mmc_device(0);
- if (!mmc_dev)
- return 0;
-
- if (mmc_init(mmc_dev))
- return 0;
-
- return UNSTUFF_BITS(mmc_dev->cid, 16, 32);
-}
-
-void msm_generate_mac_addr(u8 *mac)
-{
- /* use locally adminstrated pool */
- mac[0] = 0x02;
- mac[1] = 0x00;
-
- /*
- * Put the 32-bit serial number in the last 32-bit of the MAC address.
- * Use big endian order so it is consistent with the serial number
- * written as a hexadecimal string, e.g. 0x1234abcd -> 02:00:12:34:ab:cd
- */
- put_unaligned_be32(msm_board_serial(), &mac[2]);
-}
diff --git a/board/qualcomm/dragonboard410c/Makefile b/board/qualcomm/dragonboard410c/Makefile
index 1b99c8b0efef..189f83813325 100644
--- a/board/qualcomm/dragonboard410c/Makefile
+++ b/board/qualcomm/dragonboard410c/Makefile
@@ -2,4 +2,4 @@
#
# (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski at gmail.com>
-obj-y := dragonboard410c.o
+obj-y := dragonboard410c.o
diff --git a/board/qualcomm/dragonboard410c/dragonboard410c.c b/board/qualcomm/dragonboard410c/dragonboard410c.c
index 1adac07569ae..40b5448c6ef1 100644
--- a/board/qualcomm/dragonboard410c/dragonboard410c.c
+++ b/board/qualcomm/dragonboard410c/dragonboard410c.c
@@ -12,14 +12,13 @@
#include <dm/pinctrl.h>
#include <env.h>
#include <init.h>
+#include <mmc.h>
#include <net.h>
#include <usb.h>
#include <asm/cache.h>
#include <asm/global_data.h>
#include <asm/gpio.h>
#include <fdt_support.h>
-#include <asm/arch/dram.h>
-#include <asm/arch/misc.h>
#include <linux/delay.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -55,6 +54,49 @@ int board_usb_init(int index, enum usb_init_type init)
return 0;
}
+/* UNSTUFF_BITS macro taken from Linux Kernel: drivers/mmc/core/sd.c */
+#define UNSTUFF_BITS(resp, start, size) \
+ ({ \
+ const int __size = size; \
+ const u32 __mask = (__size < 32 ? 1 << __size : 0) - 1; \
+ const int __off = 3 - ((start) / 32); \
+ const int __shft = (start) & 31; \
+ u32 __res; \
+ \
+ __res = resp[__off] >> __shft; \
+ if (__size + __shft > 32) \
+ __res |= resp[__off - 1] << ((32 - __shft) % 32); \
+ __res & __mask; \
+ })
+
+static u32 msm_board_serial(void)
+{
+ struct mmc *mmc_dev;
+
+ mmc_dev = find_mmc_device(0);
+ if (!mmc_dev)
+ return 0;
+
+ if (mmc_init(mmc_dev))
+ return 0;
+
+ return UNSTUFF_BITS(mmc_dev->cid, 16, 32);
+}
+
+static void msm_generate_mac_addr(u8 *mac)
+{
+ /* use locally adminstrated pool */
+ mac[0] = 0x02;
+ mac[1] = 0x00;
+
+ /*
+ * Put the 32-bit serial number in the last 32-bit of the MAC address.
+ * Use big endian order so it is consistent with the serial number
+ * written as a hexadecimal string, e.g. 0x1234abcd -> 02:00:12:34:ab:cd
+ */
+ put_unaligned_be32(msm_board_serial(), &mac[2]);
+}
+
/* Check for vol- button - if pressed - stop autoboot */
int misc_init_r(void)
{
@@ -103,8 +145,6 @@ int ft_board_setup(void *blob, struct bd_info *bd)
{
u8 mac[ARP_HLEN];
- msm_fixup_memory(blob);
-
if (!eth_env_get_enetaddr("wlanaddr", mac)) {
msm_generate_mac_addr(mac);
};
--
2.43.1
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