tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
ARC: [TB10x] Add support for TB10x platform
Infrastructure required to make the Linux kernel compile and boot on the
Abilis Systems TB10x series of SOCs based on ARC700 CPUs:
- Kmake related files (Kconfig, Makefile, tb10x_defconfig)
- TB10x platform initialisation
Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
authored by
Christian Ruppert
and committed by
Vineet Gupta
072eb693
2eb9504b
+257
+1
arch/arc/Kconfig
+1
arch/arc/Kconfig
+1
arch/arc/Makefile
+1
arch/arc/Makefile
+117
arch/arc/configs/tb10x_defconfig
+117
arch/arc/configs/tb10x_defconfig
···
1
+
CONFIG_CROSS_COMPILE="arc-elf32-"
2
+
# CONFIG_LOCALVERSION_AUTO is not set
3
+
CONFIG_DEFAULT_HOSTNAME="tb10x"
4
+
CONFIG_SYSVIPC=y
5
+
CONFIG_POSIX_MQUEUE=y
6
+
CONFIG_HIGH_RES_TIMERS=y
7
+
CONFIG_BSD_PROCESS_ACCT=y
8
+
CONFIG_BSD_PROCESS_ACCT_V3=y
9
+
CONFIG_IKCONFIG=y
10
+
CONFIG_IKCONFIG_PROC=y
11
+
CONFIG_LOG_BUF_SHIFT=16
12
+
CONFIG_BLK_DEV_INITRD=y
13
+
CONFIG_INITRAMFS_SOURCE="../tb10x-rootfs.cpio"
14
+
CONFIG_INITRAMFS_ROOT_UID=2100
15
+
CONFIG_INITRAMFS_ROOT_GID=501
16
+
# CONFIG_RD_GZIP is not set
17
+
CONFIG_SYSCTL_SYSCALL=y
18
+
CONFIG_KALLSYMS_ALL=y
19
+
# CONFIG_AIO is not set
20
+
CONFIG_EMBEDDED=y
21
+
# CONFIG_COMPAT_BRK is not set
22
+
CONFIG_SLAB=y
23
+
CONFIG_MODULES=y
24
+
CONFIG_MODULE_FORCE_LOAD=y
25
+
CONFIG_MODULE_UNLOAD=y
26
+
# CONFIG_BLOCK is not set
27
+
CONFIG_ARC_PLAT_TB10X=y
28
+
CONFIG_ARC_CACHE_LINE_SHIFT=5
29
+
# CONFIG_ARC_HAS_RTSC is not set
30
+
CONFIG_ARC_STACK_NONEXEC=y
31
+
CONFIG_HZ=250
32
+
CONFIG_ARC_BUILTIN_DTB_NAME="abilis_tb100_dvk"
33
+
CONFIG_PREEMPT_VOLUNTARY=y
34
+
# CONFIG_COMPACTION is not set
35
+
# CONFIG_CROSS_MEMORY_ATTACH is not set
36
+
CONFIG_NET=y
37
+
CONFIG_PACKET=y
38
+
CONFIG_UNIX=y
39
+
CONFIG_INET=y
40
+
CONFIG_IP_MULTICAST=y
41
+
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
42
+
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
43
+
# CONFIG_INET_XFRM_MODE_BEET is not set
44
+
# CONFIG_INET_LRO is not set
45
+
# CONFIG_INET_DIAG is not set
46
+
# CONFIG_IPV6 is not set
47
+
# CONFIG_WIRELESS is not set
48
+
# CONFIG_FIRMWARE_IN_KERNEL is not set
49
+
CONFIG_PROC_DEVICETREE=y
50
+
CONFIG_NETDEVICES=y
51
+
# CONFIG_NET_CADENCE is not set
52
+
# CONFIG_NET_VENDOR_BROADCOM is not set
53
+
# CONFIG_NET_VENDOR_INTEL is not set
54
+
# CONFIG_NET_VENDOR_MARVELL is not set
55
+
# CONFIG_NET_VENDOR_MICREL is not set
56
+
# CONFIG_NET_VENDOR_NATSEMI is not set
57
+
# CONFIG_NET_VENDOR_SEEQ is not set
58
+
CONFIG_STMMAC_ETH=y
59
+
CONFIG_STMMAC_DEBUG_FS=y
60
+
CONFIG_STMMAC_DA=y
61
+
CONFIG_STMMAC_CHAINED=y
62
+
# CONFIG_NET_VENDOR_WIZNET is not set
63
+
# CONFIG_WLAN is not set
64
+
# CONFIG_INPUT is not set
65
+
# CONFIG_SERIO is not set
66
+
# CONFIG_VT is not set
67
+
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
68
+
# CONFIG_LEGACY_PTYS is not set
69
+
# CONFIG_DEVKMEM is not set
70
+
CONFIG_SERIAL_8250=y
71
+
CONFIG_SERIAL_8250_CONSOLE=y
72
+
CONFIG_SERIAL_8250_NR_UARTS=1
73
+
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
74
+
CONFIG_SERIAL_8250_DW=y
75
+
# CONFIG_HW_RANDOM is not set
76
+
CONFIG_I2C=y
77
+
# CONFIG_I2C_COMPAT is not set
78
+
CONFIG_I2C_DESIGNWARE_PLATFORM=y
79
+
CONFIG_GPIO_SYSFS=y
80
+
# CONFIG_HWMON is not set
81
+
# CONFIG_USB_SUPPORT is not set
82
+
CONFIG_NEW_LEDS=y
83
+
CONFIG_LEDS_CLASS=y
84
+
CONFIG_LEDS_GPIO=y
85
+
CONFIG_LEDS_TRIGGERS=y
86
+
CONFIG_LEDS_TRIGGER_TIMER=y
87
+
CONFIG_LEDS_TRIGGER_ONESHOT=y
88
+
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
89
+
CONFIG_LEDS_TRIGGER_CPU=y
90
+
CONFIG_LEDS_TRIGGER_GPIO=y
91
+
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
92
+
CONFIG_LEDS_TRIGGER_TRANSIENT=y
93
+
CONFIG_DMADEVICES=y
94
+
CONFIG_DW_DMAC=y
95
+
CONFIG_NET_DMA=y
96
+
CONFIG_ASYNC_TX_DMA=y
97
+
# CONFIG_IOMMU_SUPPORT is not set
98
+
# CONFIG_DNOTIFY is not set
99
+
CONFIG_PROC_KCORE=y
100
+
CONFIG_TMPFS=y
101
+
CONFIG_CONFIGFS_FS=y
102
+
# CONFIG_MISC_FILESYSTEMS is not set
103
+
# CONFIG_NETWORK_FILESYSTEMS is not set
104
+
# CONFIG_ENABLE_WARN_DEPRECATED is not set
105
+
CONFIG_MAGIC_SYSRQ=y
106
+
CONFIG_STRIP_ASM_SYMS=y
107
+
CONFIG_DEBUG_FS=y
108
+
CONFIG_HEADERS_CHECK=y
109
+
CONFIG_DEBUG_SECTION_MISMATCH=y
110
+
CONFIG_DETECT_HUNG_TASK=y
111
+
CONFIG_SCHEDSTATS=y
112
+
CONFIG_TIMER_STATS=y
113
+
CONFIG_DEBUG_INFO=y
114
+
CONFIG_DEBUG_MEMORY_INIT=y
115
+
CONFIG_DEBUG_STACKOVERFLOW=y
116
+
# CONFIG_CRYPTO_ANSI_CPRNG is not set
117
+
# CONFIG_CRYPTO_HW is not set
+10
arch/arc/include/asm/serial.h
+10
arch/arc/include/asm/serial.h
···
22
22
23
23
#define BASE_BAUD (arc_get_core_freq() / 16)
24
24
25
+
/*
26
+
* This is definitely going to break early 8250 consoles on multi-platform
27
+
* images but hey, it won't add any code complexity for a debug feature of
28
+
* one broken driver.
29
+
*/
30
+
#ifdef CONFIG_ARC_PLAT_TB10X
31
+
#undef BASE_BAUD
32
+
#define BASE_BAUD (arc_get_core_freq() / 16 / 3)
33
+
#endif
34
+
25
35
#endif /* _ASM_ARC_SERIAL_H */
+36
arch/arc/plat-tb10x/Kconfig
+36
arch/arc/plat-tb10x/Kconfig
···
1
+
# Abilis Systems TB10x platform kernel configuration file
2
+
#
3
+
# Author: Christian Ruppert <christian.ruppert@abilis.com>
4
+
#
5
+
# This program is free software; you can redistribute it and/or modify
6
+
# it under the terms of the GNU General Public License version 2 as
7
+
# published by the Free Software Foundation.
8
+
#
9
+
# This program is distributed in the hope that it will be useful,
10
+
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
+
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
+
# GNU General Public License for more details.
13
+
#
14
+
# You should have received a copy of the GNU General Public License
15
+
# along with this program; if not, write to the Free Software
16
+
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
+
18
+
19
+
menuconfig ARC_PLAT_TB10X
20
+
bool "Abilis TB10x"
21
+
select COMMON_CLK
22
+
select PINCTRL
23
+
select PINMUX
24
+
select ARCH_REQUIRE_GPIOLIB
25
+
help
26
+
Support for platforms based on the TB10x home media gateway SOC by
27
+
Abilis Systems. TB10x is based on the ARC700 CPU architecture.
28
+
Say Y if you are building a kernel for one of the SOCs in this
29
+
series (e.g. TB100 or TB101). If in doubt say N.
30
+
31
+
if ARC_PLAT_TB10X
32
+
33
+
config GENERIC_GPIO
34
+
def_bool y
35
+
36
+
endif
+21
arch/arc/plat-tb10x/Makefile
+21
arch/arc/plat-tb10x/Makefile
···
1
+
# Abilis Systems TB10x platform Makefile
2
+
#
3
+
# Author: Christian Ruppert <christian.ruppert@abilis.com>
4
+
#
5
+
# This program is free software; you can redistribute it and/or modify
6
+
# it under the terms of the GNU General Public License version 2 as
7
+
# published by the Free Software Foundation.
8
+
#
9
+
# This program is distributed in the hope that it will be useful,
10
+
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
+
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
+
# GNU General Public License for more details.
13
+
#
14
+
# You should have received a copy of the GNU General Public License
15
+
# along with this program; if not, write to the Free Software
16
+
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
+
18
+
19
+
KBUILD_CFLAGS += -Iarch/arc/plat-tb10x/include
20
+
21
+
obj-y += tb10x.o
+71
arch/arc/plat-tb10x/tb10x.c
+71
arch/arc/plat-tb10x/tb10x.c
···
1
+
/*
2
+
* Abilis Systems TB10x platform initialisation
3
+
*
4
+
* Copyright (C) Abilis Systems 2012
5
+
*
6
+
* Author: Christian Ruppert <christian.ruppert@abilis.com>
7
+
*
8
+
* This program is free software; you can redistribute it and/or modify
9
+
* it under the terms of the GNU General Public License version 2 as
10
+
* published by the Free Software Foundation.
11
+
*
12
+
* This program is distributed in the hope that it will be useful,
13
+
* but WITHOUT ANY WARRANTY; without even the implied warranty of
14
+
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
+
* GNU General Public License for more details.
16
+
*
17
+
* You should have received a copy of the GNU General Public License
18
+
* along with this program; if not, write to the Free Software
19
+
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20
+
*/
21
+
22
+
23
+
#include <linux/init.h>
24
+
#include <linux/of_platform.h>
25
+
#include <linux/clk-provider.h>
26
+
#include <linux/pinctrl/consumer.h>
27
+
28
+
#include <asm/mach_desc.h>
29
+
30
+
31
+
static void __init tb10x_platform_init(void)
32
+
{
33
+
of_clk_init(NULL);
34
+
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
35
+
}
36
+
37
+
static void __init tb10x_platform_late_init(void)
38
+
{
39
+
struct device_node *dn;
40
+
41
+
/*
42
+
* Pinctrl documentation recommends setting up the iomux here for
43
+
* all modules which don't require control over the pins themselves.
44
+
* Modules which need this kind of assistance are compatible with
45
+
* "abilis,simple-pinctrl", i.e. we can easily iterate over them.
46
+
* TODO: Does this recommended method work cleanly with pins required
47
+
* by modules?
48
+
*/
49
+
for_each_compatible_node(dn, NULL, "abilis,simple-pinctrl") {
50
+
struct platform_device *pd = of_find_device_by_node(dn);
51
+
struct pinctrl *pctl;
52
+
53
+
pctl = pinctrl_get_select(&pd->dev, "abilis,simple-default");
54
+
if (IS_ERR(pctl)) {
55
+
int ret = PTR_ERR(pctl);
56
+
dev_err(&pd->dev, "Could not set up pinctrl: %d\n",
57
+
ret);
58
+
}
59
+
}
60
+
}
61
+
62
+
static const char *tb10x_compat[] __initdata = {
63
+
"abilis,arc-tb10x",
64
+
NULL,
65
+
};
66
+
67
+
MACHINE_START(TB10x, "tb10x")
68
+
.dt_compat = tb10x_compat,
69
+
.init_machine = tb10x_platform_init,
70
+
.init_late = tb10x_platform_late_init,
71
+
MACHINE_END