Re: [PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
Hi Andrea, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] [also build test ERROR on v4.18-rc1 next-20180622] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Andrea-Greco/arcnet-leds-Removed-leds-dependecy/20180611-222941 config: x86_64-randconfig-s4-06220549 (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): >> ERROR: "com20020_found" [drivers/net/arcnet/com20020-io.ko] undefined! >> ERROR: "com20020_check" [drivers/net/arcnet/com20020-io.ko] undefined! >> ERROR: "com20020_netdev_ops" [drivers/net/arcnet/com20020-io.ko] undefined! --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation .config.gz Description: application/gzip
Re: [PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
Hi Andrea, Thank you for the patch! Yet something to improve: [auto build test ERROR on net-next/master] [also build test ERROR on v4.18-rc1 next-20180622] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Andrea-Greco/arcnet-leds-Removed-leds-dependecy/20180611-222941 config: x86_64-randconfig-s4-06220549 (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): >> ERROR: "com20020_found" [drivers/net/arcnet/com20020-io.ko] undefined! >> ERROR: "com20020_check" [drivers/net/arcnet/com20020-io.ko] undefined! >> ERROR: "com20020_netdev_ops" [drivers/net/arcnet/com20020-io.ko] undefined! --- 0-DAY kernel test infrastructureOpen Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation .config.gz Description: application/gzip
Re: [PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
Hi Andrea,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
[also build test WARNING on v4.17 next-20180608]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Andrea-Greco/arcnet-leds-Removed-leds-dependecy/20180611-222941
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> drivers/net/arcnet/com20020-io.c:34:45: sparse: incorrect type in argument 1
>> (different address spaces) @@expected void [noderef] *
>> @@got sn:2>* @@
drivers/net/arcnet/com20020-io.c:34:45:expected void [noderef]
*
drivers/net/arcnet/com20020-io.c:34:45:got void *
drivers/net/arcnet/com20020-io.c:39:45: sparse: incorrect type in argument 2
(different address spaces) @@expected void [noderef] * @@
got sn:2>* @@
drivers/net/arcnet/com20020-io.c:39:45:expected void [noderef]
*
drivers/net/arcnet/com20020-io.c:39:45:got void *
>> drivers/net/arcnet/com20020-io.c:44:22: sparse: incorrect type in argument 1
>> (different address spaces) @@expected void [noderef] *port @@
>> got void [noderef] *port @@
drivers/net/arcnet/com20020-io.c:44:22:expected void [noderef]
*port
drivers/net/arcnet/com20020-io.c:44:22:got void *[noderef]
drivers/net/arcnet/com20020-io.c:49:23: sparse: incorrect type in argument 1
(different address spaces) @@expected void [noderef] *port @@got
void [noderef] *port @@
drivers/net/arcnet/com20020-io.c:49:23:expected void [noderef]
*port
drivers/net/arcnet/com20020-io.c:49:23:got void *[noderef]
>> drivers/net/arcnet/com20020-io.c:219:19: sparse: cast removes address space
>> of expression
drivers/net/arcnet/com20020-io.c: In function 'io_arc_inb':
drivers/net/arcnet/com20020-io.c:34:17: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
return ioread8((void *__iomem) addr + offset);
^
drivers/net/arcnet/com20020-io.c: In function 'io_arc_outb':
drivers/net/arcnet/com20020-io.c:39:18: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void *__iomem)addr + offset);
^
drivers/net/arcnet/com20020-io.c: In function 'io_arc_insb':
drivers/net/arcnet/com20020-io.c:44:14: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
ioread8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net/arcnet/com20020-io.c: In function 'io_arc_outsb':
drivers/net/arcnet/com20020-io.c:49:15: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net/arcnet/com20020-io.c: In function 'com20020_probe':
drivers/net/arcnet/com20020-io.c:219:11: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
ioaddr = (int)devm_ioremap(>dev, iores->start,
^
drivers/net/arcnet/com20020-io.c:288:27: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
devm_iounmap(>dev, (void __iomem *)ioaddr);
^
vim +34 drivers/net/arcnet/com20020-io.c
31
32 static unsigned int io_arc_inb(int addr, int offset)
33 {
> 34 return ioread8((void *__iomem) addr + offset);
35 }
36
37 static void io_arc_outb(int value, int addr, int offset)
38 {
> 39 iowrite8(value, (void *__iomem)addr + offset);
40 }
41
42 static void io_arc_insb(int addr, int offset, void *buffer, int count)
43 {
> 44 ioread8_rep((void *__iomem) (addr + offset), buffer, count);
45 }
46
47 static void io_arc_outsb(int addr, int offset, void *buffer, int count)
48 {
49 iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
50 }
51
52 enum com20020_xtal_freq {
53 freq_10Mhz = 10,
54 freq_20Mhz = 20,
55 };
56
57 enum com20020_arcnet_speed {
58 arc_speed_10M_bps = 1000,
59 arc_speed_5M_bps = 500,
60 arc_speed_2M50_bps = 250,
61 arc_speed_1M25_bps = 125,
62 arc_speed_625K_bps = 625000,
63 arc_speed_312K5_bps = 312500,
64 arc_speed_156K25_bps = 156250,
65 };
66
67 enum com20020_timeout {
68 arc_timeout_328us = 328000,
69 arc_timeout_164us = 164000,
70 arc_timeout_82us = 82000,
71 arc_timeout_20u5s = 20500,
72 };
73
74 static int setup_clock(int *clockp, int *clockm, int xtal, int
arcnet_speed)
75 {
76 int
Re: [PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
Hi Andrea,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
[also build test WARNING on v4.17 next-20180608]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Andrea-Greco/arcnet-leds-Removed-leds-dependecy/20180611-222941
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> drivers/net/arcnet/com20020-io.c:34:45: sparse: incorrect type in argument 1
>> (different address spaces) @@expected void [noderef] *
>> @@got sn:2>* @@
drivers/net/arcnet/com20020-io.c:34:45:expected void [noderef]
*
drivers/net/arcnet/com20020-io.c:34:45:got void *
drivers/net/arcnet/com20020-io.c:39:45: sparse: incorrect type in argument 2
(different address spaces) @@expected void [noderef] * @@
got sn:2>* @@
drivers/net/arcnet/com20020-io.c:39:45:expected void [noderef]
*
drivers/net/arcnet/com20020-io.c:39:45:got void *
>> drivers/net/arcnet/com20020-io.c:44:22: sparse: incorrect type in argument 1
>> (different address spaces) @@expected void [noderef] *port @@
>> got void [noderef] *port @@
drivers/net/arcnet/com20020-io.c:44:22:expected void [noderef]
*port
drivers/net/arcnet/com20020-io.c:44:22:got void *[noderef]
drivers/net/arcnet/com20020-io.c:49:23: sparse: incorrect type in argument 1
(different address spaces) @@expected void [noderef] *port @@got
void [noderef] *port @@
drivers/net/arcnet/com20020-io.c:49:23:expected void [noderef]
*port
drivers/net/arcnet/com20020-io.c:49:23:got void *[noderef]
>> drivers/net/arcnet/com20020-io.c:219:19: sparse: cast removes address space
>> of expression
drivers/net/arcnet/com20020-io.c: In function 'io_arc_inb':
drivers/net/arcnet/com20020-io.c:34:17: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
return ioread8((void *__iomem) addr + offset);
^
drivers/net/arcnet/com20020-io.c: In function 'io_arc_outb':
drivers/net/arcnet/com20020-io.c:39:18: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void *__iomem)addr + offset);
^
drivers/net/arcnet/com20020-io.c: In function 'io_arc_insb':
drivers/net/arcnet/com20020-io.c:44:14: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
ioread8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net/arcnet/com20020-io.c: In function 'io_arc_outsb':
drivers/net/arcnet/com20020-io.c:49:15: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net/arcnet/com20020-io.c: In function 'com20020_probe':
drivers/net/arcnet/com20020-io.c:219:11: warning: cast from pointer to
integer of different size [-Wpointer-to-int-cast]
ioaddr = (int)devm_ioremap(>dev, iores->start,
^
drivers/net/arcnet/com20020-io.c:288:27: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
devm_iounmap(>dev, (void __iomem *)ioaddr);
^
vim +34 drivers/net/arcnet/com20020-io.c
31
32 static unsigned int io_arc_inb(int addr, int offset)
33 {
> 34 return ioread8((void *__iomem) addr + offset);
35 }
36
37 static void io_arc_outb(int value, int addr, int offset)
38 {
> 39 iowrite8(value, (void *__iomem)addr + offset);
40 }
41
42 static void io_arc_insb(int addr, int offset, void *buffer, int count)
43 {
> 44 ioread8_rep((void *__iomem) (addr + offset), buffer, count);
45 }
46
47 static void io_arc_outsb(int addr, int offset, void *buffer, int count)
48 {
49 iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
50 }
51
52 enum com20020_xtal_freq {
53 freq_10Mhz = 10,
54 freq_20Mhz = 20,
55 };
56
57 enum com20020_arcnet_speed {
58 arc_speed_10M_bps = 1000,
59 arc_speed_5M_bps = 500,
60 arc_speed_2M50_bps = 250,
61 arc_speed_1M25_bps = 125,
62 arc_speed_625K_bps = 625000,
63 arc_speed_312K5_bps = 312500,
64 arc_speed_156K25_bps = 156250,
65 };
66
67 enum com20020_timeout {
68 arc_timeout_328us = 328000,
69 arc_timeout_164us = 164000,
70 arc_timeout_82us = 82000,
71 arc_timeout_20u5s = 20500,
72 };
73
74 static int setup_clock(int *clockp, int *clockm, int xtal, int
arcnet_speed)
75 {
76 int
Re: [PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
Hi Andrea,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
[also build test WARNING on v4.17 next-20180608]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Andrea-Greco/arcnet-leds-Removed-leds-dependecy/20180611-222941
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=sparc64
All warnings (new ones prefixed by >>):
drivers/net//arcnet/com20020-io.c: In function 'io_arc_inb':
>> drivers/net//arcnet/com20020-io.c:34:17: warning: cast to pointer from
>> integer of different size [-Wint-to-pointer-cast]
return ioread8((void *__iomem) addr + offset);
^
drivers/net//arcnet/com20020-io.c: In function 'io_arc_outb':
drivers/net//arcnet/com20020-io.c:39:18: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void *__iomem)addr + offset);
^
drivers/net//arcnet/com20020-io.c: In function 'io_arc_insb':
drivers/net//arcnet/com20020-io.c:44:14: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
ioread8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net//arcnet/com20020-io.c: In function 'io_arc_outsb':
drivers/net//arcnet/com20020-io.c:49:15: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net//arcnet/com20020-io.c: In function 'com20020_probe':
>> drivers/net//arcnet/com20020-io.c:219:11: warning: cast from pointer to
>> integer of different size [-Wpointer-to-int-cast]
ioaddr = (int)devm_ioremap(>dev, iores->start,
^
drivers/net//arcnet/com20020-io.c:288:27: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
devm_iounmap(>dev, (void __iomem *)ioaddr);
^
vim +34 drivers/net//arcnet/com20020-io.c
31
32 static unsigned int io_arc_inb(int addr, int offset)
33 {
> 34 return ioread8((void *__iomem) addr + offset);
35 }
36
37 static void io_arc_outb(int value, int addr, int offset)
38 {
39 iowrite8(value, (void *__iomem)addr + offset);
40 }
41
42 static void io_arc_insb(int addr, int offset, void *buffer, int count)
43 {
> 44 ioread8_rep((void *__iomem) (addr + offset), buffer, count);
45 }
46
47 static void io_arc_outsb(int addr, int offset, void *buffer, int count)
48 {
49 iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
50 }
51
52 enum com20020_xtal_freq {
53 freq_10Mhz = 10,
54 freq_20Mhz = 20,
55 };
56
57 enum com20020_arcnet_speed {
58 arc_speed_10M_bps = 1000,
59 arc_speed_5M_bps = 500,
60 arc_speed_2M50_bps = 250,
61 arc_speed_1M25_bps = 125,
62 arc_speed_625K_bps = 625000,
63 arc_speed_312K5_bps = 312500,
64 arc_speed_156K25_bps = 156250,
65 };
66
67 enum com20020_timeout {
68 arc_timeout_328us = 328000,
69 arc_timeout_164us = 164000,
70 arc_timeout_82us = 82000,
71 arc_timeout_20u5s = 20500,
72 };
73
74 static int setup_clock(int *clockp, int *clockm, int xtal, int
arcnet_speed)
75 {
76 int pll_factor, req_clock_frq = 20;
77
78 switch (arcnet_speed) {
79 case arc_speed_10M_bps:
80 req_clock_frq = 80;
81 *clockp = 0;
82 break;
83 case arc_speed_5M_bps:
84 req_clock_frq = 40;
85 *clockp = 0;
86 break;
87 case arc_speed_2M50_bps:
88 *clockp = 0;
89 break;
90 case arc_speed_1M25_bps:
91 *clockp = 1;
92 break;
93 case arc_speed_625K_bps:
94 *clockp = 2;
95 break;
96 case arc_speed_312K5_bps:
97 *clockp = 3;
98 break;
99 case arc_speed_156K25_bps:
100 *clockp = 4;
101 break;
102 default:
103 return -EINVAL;
104 }
105
106 if (xtal != freq_10Mhz && xtal !=
Re: [PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
Hi Andrea,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on net-next/master]
[also build test WARNING on v4.17 next-20180608]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Andrea-Greco/arcnet-leds-Removed-leds-dependecy/20180611-222941
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=sparc64
All warnings (new ones prefixed by >>):
drivers/net//arcnet/com20020-io.c: In function 'io_arc_inb':
>> drivers/net//arcnet/com20020-io.c:34:17: warning: cast to pointer from
>> integer of different size [-Wint-to-pointer-cast]
return ioread8((void *__iomem) addr + offset);
^
drivers/net//arcnet/com20020-io.c: In function 'io_arc_outb':
drivers/net//arcnet/com20020-io.c:39:18: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8(value, (void *__iomem)addr + offset);
^
drivers/net//arcnet/com20020-io.c: In function 'io_arc_insb':
drivers/net//arcnet/com20020-io.c:44:14: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
ioread8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net//arcnet/com20020-io.c: In function 'io_arc_outsb':
drivers/net//arcnet/com20020-io.c:49:15: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
^
drivers/net//arcnet/com20020-io.c: In function 'com20020_probe':
>> drivers/net//arcnet/com20020-io.c:219:11: warning: cast from pointer to
>> integer of different size [-Wpointer-to-int-cast]
ioaddr = (int)devm_ioremap(>dev, iores->start,
^
drivers/net//arcnet/com20020-io.c:288:27: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
devm_iounmap(>dev, (void __iomem *)ioaddr);
^
vim +34 drivers/net//arcnet/com20020-io.c
31
32 static unsigned int io_arc_inb(int addr, int offset)
33 {
> 34 return ioread8((void *__iomem) addr + offset);
35 }
36
37 static void io_arc_outb(int value, int addr, int offset)
38 {
39 iowrite8(value, (void *__iomem)addr + offset);
40 }
41
42 static void io_arc_insb(int addr, int offset, void *buffer, int count)
43 {
> 44 ioread8_rep((void *__iomem) (addr + offset), buffer, count);
45 }
46
47 static void io_arc_outsb(int addr, int offset, void *buffer, int count)
48 {
49 iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
50 }
51
52 enum com20020_xtal_freq {
53 freq_10Mhz = 10,
54 freq_20Mhz = 20,
55 };
56
57 enum com20020_arcnet_speed {
58 arc_speed_10M_bps = 1000,
59 arc_speed_5M_bps = 500,
60 arc_speed_2M50_bps = 250,
61 arc_speed_1M25_bps = 125,
62 arc_speed_625K_bps = 625000,
63 arc_speed_312K5_bps = 312500,
64 arc_speed_156K25_bps = 156250,
65 };
66
67 enum com20020_timeout {
68 arc_timeout_328us = 328000,
69 arc_timeout_164us = 164000,
70 arc_timeout_82us = 82000,
71 arc_timeout_20u5s = 20500,
72 };
73
74 static int setup_clock(int *clockp, int *clockm, int xtal, int
arcnet_speed)
75 {
76 int pll_factor, req_clock_frq = 20;
77
78 switch (arcnet_speed) {
79 case arc_speed_10M_bps:
80 req_clock_frq = 80;
81 *clockp = 0;
82 break;
83 case arc_speed_5M_bps:
84 req_clock_frq = 40;
85 *clockp = 0;
86 break;
87 case arc_speed_2M50_bps:
88 *clockp = 0;
89 break;
90 case arc_speed_1M25_bps:
91 *clockp = 1;
92 break;
93 case arc_speed_625K_bps:
94 *clockp = 2;
95 break;
96 case arc_speed_312K5_bps:
97 *clockp = 3;
98 break;
99 case arc_speed_156K25_bps:
100 *clockp = 4;
101 break;
102 default:
103 return -EINVAL;
104 }
105
106 if (xtal != freq_10Mhz && xtal !=
[PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
From: Andrea Greco
Add support for com20022I/com20020, io mapped.
Signed-off-by: Andrea Greco
---
drivers/net/arcnet/Kconfig | 9 +-
drivers/net/arcnet/Makefile | 1 +
drivers/net/arcnet/com20020-io.c | 315 +++
drivers/net/arcnet/com20020.c| 5 +-
4 files changed, 327 insertions(+), 3 deletions(-)
create mode 100644 drivers/net/arcnet/com20020-io.c
diff --git a/drivers/net/arcnet/Kconfig b/drivers/net/arcnet/Kconfig
index afc5898e7a16..f72620dc63ec 100644
--- a/drivers/net/arcnet/Kconfig
+++ b/drivers/net/arcnet/Kconfig
@@ -3,7 +3,7 @@
#
menuconfig ARCNET
- depends on NETDEVICES && (ISA || PCI || PCMCIA)
+ depends on NETDEVICES
tristate "ARCnet support"
---help---
If you have a network card of this type, say Y and check out the
@@ -129,5 +129,12 @@ config ARCNET_COM20020_CS
To compile this driver as a module, choose M here: the module will be
called com20020_cs. If unsure, say N.
+config ARCNET_COM20020_IO
+ tristate "Support for COM20020 (IO mapped)"
+ depends on ARCNET_COM20020
+ help
+ Say Y here if your custom board mount com20020 chipset or friends.
+ Supported Chipset: com20020, com20022, com20022I-3v3
+ If unsure, say N.
endif # ARCNET
diff --git a/drivers/net/arcnet/Makefile b/drivers/net/arcnet/Makefile
index 53525e8ea130..18da4341f404 100644
--- a/drivers/net/arcnet/Makefile
+++ b/drivers/net/arcnet/Makefile
@@ -14,3 +14,4 @@ obj-$(CONFIG_ARCNET_COM20020) += com20020.o
obj-$(CONFIG_ARCNET_COM20020_ISA) += com20020-isa.o
obj-$(CONFIG_ARCNET_COM20020_PCI) += com20020-pci.o
obj-$(CONFIG_ARCNET_COM20020_CS) += com20020_cs.o
+obj-$(CONFIG_ARCNET_COM20020_IO) += com20020-io.o
diff --git a/drivers/net/arcnet/com20020-io.c b/drivers/net/arcnet/com20020-io.c
new file mode 100644
index ..23c24d4de5a9
--- /dev/null
+++ b/drivers/net/arcnet/com20020-io.c
@@ -0,0 +1,315 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Linux ARCnet driver for com 20020.
+ *
+ * datasheet:
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/200223vrevc.pdf
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/20020.pdf
+ *
+ * Supported chip version:
+ * - com20020
+ * - com20022
+ * - com20022I-3v3
+ */
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include "arcdevice.h"
+#include "com20020.h"
+
+/* Reset (5 * xTalFreq), minimal com20020 xTal is 10Mhz */
+#define RESET_DELAY 500
+
+static unsigned int io_arc_inb(int addr, int offset)
+{
+ return ioread8((void *__iomem) addr + offset);
+}
+
+static void io_arc_outb(int value, int addr, int offset)
+{
+ iowrite8(value, (void *__iomem)addr + offset);
+}
+
+static void io_arc_insb(int addr, int offset, void *buffer, int count)
+{
+ ioread8_rep((void *__iomem) (addr + offset), buffer, count);
+}
+
+static void io_arc_outsb(int addr, int offset, void *buffer, int count)
+{
+ iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
+}
+
+enum com20020_xtal_freq {
+ freq_10Mhz = 10,
+ freq_20Mhz = 20,
+};
+
+enum com20020_arcnet_speed {
+ arc_speed_10M_bps = 1000,
+ arc_speed_5M_bps = 500,
+ arc_speed_2M50_bps = 250,
+ arc_speed_1M25_bps = 125,
+ arc_speed_625K_bps = 625000,
+ arc_speed_312K5_bps = 312500,
+ arc_speed_156K25_bps = 156250,
+};
+
+enum com20020_timeout {
+ arc_timeout_328us = 328000,
+ arc_timeout_164us = 164000,
+ arc_timeout_82us = 82000,
+ arc_timeout_20u5s = 20500,
+};
+
+static int setup_clock(int *clockp, int *clockm, int xtal, int arcnet_speed)
+{
+ int pll_factor, req_clock_frq = 20;
+
+ switch (arcnet_speed) {
+ case arc_speed_10M_bps:
+ req_clock_frq = 80;
+ *clockp = 0;
+ break;
+ case arc_speed_5M_bps:
+ req_clock_frq = 40;
+ *clockp = 0;
+ break;
+ case arc_speed_2M50_bps:
+ *clockp = 0;
+ break;
+ case arc_speed_1M25_bps:
+ *clockp = 1;
+ break;
+ case arc_speed_625K_bps:
+ *clockp = 2;
+ break;
+ case arc_speed_312K5_bps:
+ *clockp = 3;
+ break;
+ case arc_speed_156K25_bps:
+ *clockp = 4;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (xtal != freq_10Mhz && xtal != freq_20Mhz)
+ return -EINVAL;
+
+ pll_factor = (unsigned int)req_clock_frq / xtal;
+
+ switch (pll_factor) {
+ case 1:
+ *clockm = 0;
+ break;
+ case 2:
+ *clockm = 1;
+ break;
+ case 4:
+ *clockm = 3;
+ break;
+ default:
+ return
[PATCH 3/6] arcnet: com20020: Add com20020 io mapped version
From: Andrea Greco
Add support for com20022I/com20020, io mapped.
Signed-off-by: Andrea Greco
---
drivers/net/arcnet/Kconfig | 9 +-
drivers/net/arcnet/Makefile | 1 +
drivers/net/arcnet/com20020-io.c | 315 +++
drivers/net/arcnet/com20020.c| 5 +-
4 files changed, 327 insertions(+), 3 deletions(-)
create mode 100644 drivers/net/arcnet/com20020-io.c
diff --git a/drivers/net/arcnet/Kconfig b/drivers/net/arcnet/Kconfig
index afc5898e7a16..f72620dc63ec 100644
--- a/drivers/net/arcnet/Kconfig
+++ b/drivers/net/arcnet/Kconfig
@@ -3,7 +3,7 @@
#
menuconfig ARCNET
- depends on NETDEVICES && (ISA || PCI || PCMCIA)
+ depends on NETDEVICES
tristate "ARCnet support"
---help---
If you have a network card of this type, say Y and check out the
@@ -129,5 +129,12 @@ config ARCNET_COM20020_CS
To compile this driver as a module, choose M here: the module will be
called com20020_cs. If unsure, say N.
+config ARCNET_COM20020_IO
+ tristate "Support for COM20020 (IO mapped)"
+ depends on ARCNET_COM20020
+ help
+ Say Y here if your custom board mount com20020 chipset or friends.
+ Supported Chipset: com20020, com20022, com20022I-3v3
+ If unsure, say N.
endif # ARCNET
diff --git a/drivers/net/arcnet/Makefile b/drivers/net/arcnet/Makefile
index 53525e8ea130..18da4341f404 100644
--- a/drivers/net/arcnet/Makefile
+++ b/drivers/net/arcnet/Makefile
@@ -14,3 +14,4 @@ obj-$(CONFIG_ARCNET_COM20020) += com20020.o
obj-$(CONFIG_ARCNET_COM20020_ISA) += com20020-isa.o
obj-$(CONFIG_ARCNET_COM20020_PCI) += com20020-pci.o
obj-$(CONFIG_ARCNET_COM20020_CS) += com20020_cs.o
+obj-$(CONFIG_ARCNET_COM20020_IO) += com20020-io.o
diff --git a/drivers/net/arcnet/com20020-io.c b/drivers/net/arcnet/com20020-io.c
new file mode 100644
index ..23c24d4de5a9
--- /dev/null
+++ b/drivers/net/arcnet/com20020-io.c
@@ -0,0 +1,315 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Linux ARCnet driver for com 20020.
+ *
+ * datasheet:
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/200223vrevc.pdf
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/20020.pdf
+ *
+ * Supported chip version:
+ * - com20020
+ * - com20022
+ * - com20022I-3v3
+ */
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include "arcdevice.h"
+#include "com20020.h"
+
+/* Reset (5 * xTalFreq), minimal com20020 xTal is 10Mhz */
+#define RESET_DELAY 500
+
+static unsigned int io_arc_inb(int addr, int offset)
+{
+ return ioread8((void *__iomem) addr + offset);
+}
+
+static void io_arc_outb(int value, int addr, int offset)
+{
+ iowrite8(value, (void *__iomem)addr + offset);
+}
+
+static void io_arc_insb(int addr, int offset, void *buffer, int count)
+{
+ ioread8_rep((void *__iomem) (addr + offset), buffer, count);
+}
+
+static void io_arc_outsb(int addr, int offset, void *buffer, int count)
+{
+ iowrite8_rep((void *__iomem) (addr + offset), buffer, count);
+}
+
+enum com20020_xtal_freq {
+ freq_10Mhz = 10,
+ freq_20Mhz = 20,
+};
+
+enum com20020_arcnet_speed {
+ arc_speed_10M_bps = 1000,
+ arc_speed_5M_bps = 500,
+ arc_speed_2M50_bps = 250,
+ arc_speed_1M25_bps = 125,
+ arc_speed_625K_bps = 625000,
+ arc_speed_312K5_bps = 312500,
+ arc_speed_156K25_bps = 156250,
+};
+
+enum com20020_timeout {
+ arc_timeout_328us = 328000,
+ arc_timeout_164us = 164000,
+ arc_timeout_82us = 82000,
+ arc_timeout_20u5s = 20500,
+};
+
+static int setup_clock(int *clockp, int *clockm, int xtal, int arcnet_speed)
+{
+ int pll_factor, req_clock_frq = 20;
+
+ switch (arcnet_speed) {
+ case arc_speed_10M_bps:
+ req_clock_frq = 80;
+ *clockp = 0;
+ break;
+ case arc_speed_5M_bps:
+ req_clock_frq = 40;
+ *clockp = 0;
+ break;
+ case arc_speed_2M50_bps:
+ *clockp = 0;
+ break;
+ case arc_speed_1M25_bps:
+ *clockp = 1;
+ break;
+ case arc_speed_625K_bps:
+ *clockp = 2;
+ break;
+ case arc_speed_312K5_bps:
+ *clockp = 3;
+ break;
+ case arc_speed_156K25_bps:
+ *clockp = 4;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (xtal != freq_10Mhz && xtal != freq_20Mhz)
+ return -EINVAL;
+
+ pll_factor = (unsigned int)req_clock_frq / xtal;
+
+ switch (pll_factor) {
+ case 1:
+ *clockm = 0;
+ break;
+ case 2:
+ *clockm = 1;
+ break;
+ case 4:
+ *clockm = 3;
+ break;
+ default:
+ return
