Commit 1ac91b1f authored by Sergey Ryazanov's avatar Sergey Ryazanov Committed by Ralf Baechle

MIPS: ath25: add UART support

Signed-off-by: default avatarSergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/8242/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 8aaa7278
...@@ -267,3 +267,11 @@ void __init ar2315_plat_mem_setup(void) ...@@ -267,3 +267,11 @@ void __init ar2315_plat_mem_setup(void)
_machine_restart = ar2315_restart; _machine_restart = ar2315_restart;
} }
void __init ar2315_arch_init(void)
{
unsigned irq = irq_create_mapping(ar2315_misc_irq_domain,
AR2315_MISC_IRQ_UART0);
ath25_serial_setup(AR2315_UART0_BASE, irq, ar2315_apb_frequency());
}
...@@ -6,12 +6,14 @@ ...@@ -6,12 +6,14 @@
void ar2315_arch_init_irq(void); void ar2315_arch_init_irq(void);
void ar2315_plat_time_init(void); void ar2315_plat_time_init(void);
void ar2315_plat_mem_setup(void); void ar2315_plat_mem_setup(void);
void ar2315_arch_init(void);
#else #else
static inline void ar2315_arch_init_irq(void) {} static inline void ar2315_arch_init_irq(void) {}
static inline void ar2315_plat_time_init(void) {} static inline void ar2315_plat_time_init(void) {}
static inline void ar2315_plat_mem_setup(void) {} static inline void ar2315_plat_mem_setup(void) {}
static inline void ar2315_arch_init(void) {}
#endif #endif
......
...@@ -265,3 +265,11 @@ void __init ar5312_plat_mem_setup(void) ...@@ -265,3 +265,11 @@ void __init ar5312_plat_mem_setup(void)
_machine_restart = ar5312_restart; _machine_restart = ar5312_restart;
} }
void __init ar5312_arch_init(void)
{
unsigned irq = irq_create_mapping(ar5312_misc_irq_domain,
AR5312_MISC_IRQ_UART0);
ath25_serial_setup(AR5312_UART0_BASE, irq, ar5312_sys_frequency());
}
...@@ -6,12 +6,14 @@ ...@@ -6,12 +6,14 @@
void ar5312_arch_init_irq(void); void ar5312_arch_init_irq(void);
void ar5312_plat_time_init(void); void ar5312_plat_time_init(void);
void ar5312_plat_mem_setup(void); void ar5312_plat_mem_setup(void);
void ar5312_arch_init(void);
#else #else
static inline void ar5312_arch_init_irq(void) {} static inline void ar5312_arch_init_irq(void) {}
static inline void ar5312_plat_time_init(void) {} static inline void ar5312_plat_time_init(void) {}
static inline void ar5312_plat_mem_setup(void) {} static inline void ar5312_plat_mem_setup(void) {}
static inline void ar5312_arch_init(void) {}
#endif #endif
......
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/serial_8250.h>
#include <asm/bootinfo.h> #include <asm/bootinfo.h>
#include "devices.h" #include "devices.h"
#include "ar5312.h"
#include "ar2315.h"
const char *get_system_type(void) const char *get_system_type(void)
{ {
return "Atheros (unknown)"; return "Atheros (unknown)";
} }
void __init ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk)
{
struct uart_port s;
memset(&s, 0, sizeof(s));
s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP;
s.iotype = UPIO_MEM32;
s.irq = irq;
s.regshift = 2;
s.mapbase = mapbase;
s.uartclk = uartclk;
early_serial_setup(&s);
}
static int __init ath25_arch_init(void)
{
if (is_ar5312())
ar5312_arch_init();
else
ar2315_arch_init();
return 0;
}
arch_initcall(ath25_arch_init);
...@@ -9,6 +9,8 @@ ...@@ -9,6 +9,8 @@
extern void (*ath25_irq_dispatch)(void); extern void (*ath25_irq_dispatch)(void);
void ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk);
static inline bool is_ar2315(void) static inline bool is_ar2315(void)
{ {
return (current_cpu_data.cputype == CPU_4KEC); return (current_cpu_data.cputype == CPU_4KEC);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment