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MIPS: ath25: add Wireless device support

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Atheros AR5312 and AR2315 both have a builtin wireless device, this
patch add helper code and register platform device for all supported
WiSoCs.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/8249/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Sergey Ryazanov 2014-10-29 03:18:50 +04:00 committed by Ralf Baechle
parent 164a974889
commit d6a4c72ae4
4 changed files with 79 additions and 0 deletions
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2
arch/mips/ath25/ar2315.c
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@ -171,6 +171,8 @@ void __init ar2315_init_devices(void)
{
/* Find board configuration */
ath25_find_config(AR2315_SPI_READ_BASE, AR2315_SPI_READ_SIZE);
ath25_add_wmac(0, AR2315_WLAN0_BASE, AR2315_IRQ_WLAN0);
}
static void ar2315_restart(char *command)

22
arch/mips/ath25/ar5312.c
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@ -246,6 +246,28 @@ void __init ar5312_init_devices(void)
ath25_soc = ATH25_SOC_AR5312;
platform_device_register(&ar5312_physmap_flash);
switch (ath25_soc) {
case ATH25_SOC_AR5312:
if (!ath25_board.radio)
return;
if (!(config->flags & BD_WLAN0))
break;
ath25_add_wmac(0, AR5312_WLAN0_BASE, AR5312_IRQ_WLAN0);
break;
case ATH25_SOC_AR2312:
case ATH25_SOC_AR2313:
if (!ath25_board.radio)
return;
break;
default:
break;
}
if (config->flags & BD_WLAN1)
ath25_add_wmac(1, AR5312_WLAN1_BASE, AR5312_IRQ_WLAN1);
}
static void ar5312_restart(char *command)

54
arch/mips/ath25/devices.c
View File

@ -1,6 +1,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/serial_8250.h>
#include <linux/platform_device.h>
#include <asm/bootinfo.h>
#include <ath25_platform.h>
@ -11,6 +12,45 @@
struct ar231x_board_config ath25_board;
enum ath25_soc_type ath25_soc = ATH25_SOC_UNKNOWN;
static struct resource ath25_wmac0_res[] = {
{
.name = "wmac0_membase",
.flags = IORESOURCE_MEM,
},
{
.name = "wmac0_irq",
.flags = IORESOURCE_IRQ,
}
};
static struct resource ath25_wmac1_res[] = {
{
.name = "wmac1_membase",
.flags = IORESOURCE_MEM,
},
{
.name = "wmac1_irq",
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device ath25_wmac[] = {
{
.id = 0,
.name = "ar231x-wmac",
.resource = ath25_wmac0_res,
.num_resources = ARRAY_SIZE(ath25_wmac0_res),
.dev.platform_data = &ath25_board,
},
{
.id = 1,
.name = "ar231x-wmac",
.resource = ath25_wmac1_res,
.num_resources = ARRAY_SIZE(ath25_wmac1_res),
.dev.platform_data = &ath25_board,
},
};
static const char * const soc_type_strings[] = {
[ATH25_SOC_AR5312] = "Atheros AR5312",
[ATH25_SOC_AR2312] = "Atheros AR2312",
@ -46,6 +86,20 @@ void __init ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk)
early_serial_setup(&s);
}
int __init ath25_add_wmac(int nr, u32 base, int irq)
{
struct resource *res;
ath25_wmac[nr].dev.platform_data = &ath25_board;
res = &ath25_wmac[nr].resource[0];
res->start = base;
res->end = base + 0x10000 - 1;
res++;
res->start = irq;
res->end = irq;
return platform_device_register(&ath25_wmac[nr]);
}
static int __init ath25_register_devices(void)
{
if (is_ar5312())

1
arch/mips/ath25/devices.h
View File

@ -28,6 +28,7 @@ extern void (*ath25_irq_dispatch)(void);
int ath25_find_config(phys_addr_t offset, unsigned long size);
void ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk);
int ath25_add_wmac(int nr, u32 base, int irq);
static inline bool is_ar2315(void)
{