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[POWERPC] 8xx: powerpc port of core CPM PIC

Browse source 
This covers common CPM access functions, CPM interrupt controller code,
micropatch and a few compatibility things to kee the same driver base
working with arch/ppc. This version is refined with all the comments
(mostly PIC-related) addressed.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Vitaly Bordug 2007-01-24 22:41:24 +03:00 • committed by Paul Mackerras
commit f2a0bd3753
9 changed files with 1414 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

45
include/asm-powerpc/fs_pd.h
View file

@ -11,19 +11,11 @@
#ifndef FS_PD_H
#define FS_PD_H
#include <asm/cpm2.h>
#include <sysdev/fsl_soc.h>
#include <asm/time.h>
static inline int uart_baudrate(void)
{
return get_baudrate();
}
static inline int uart_clock(void)
{
return ppc_proc_freq;
}
#ifdef CONFIG_CPM2
#include <asm/cpm2.h>
#define cpm2_map(member) \
({ \
@ -41,5 +33,38 @@ static inline int uart_clock(void)
})
#define cpm2_unmap(addr) iounmap(addr)
#endif
#ifdef CONFIG_8xx
#include <asm/8xx_immap.h>
#include <asm/mpc8xx.h>
#define immr_map(member) \
({ \
u32 offset = offsetof(immap_t, member); \
void *addr = ioremap (IMAP_ADDR + offset, \
sizeof( ((immap_t*)0)->member)); \
addr; \
})
#define immr_map_size(member, size) \
({ \
u32 offset = offsetof(immap_t, member); \
void *addr = ioremap (IMAP_ADDR + offset, size); \
addr; \
})
#define immr_unmap(addr) iounmap(addr)
#endif
static inline int uart_baudrate(void)
{
return get_baudrate();
}
static inline int uart_clock(void)
{
return ppc_proc_freq;
}
#endif

24
include/asm-powerpc/mpc8xx.h Normal file
View file

@ -0,0 +1,24 @@
/* This is the single file included by all MPC8xx build options.
* Since there are many different boards and no standard configuration,
* we have a unique include file for each. Rather than change every
* file that has to include MPC8xx configuration, they all include
* this one and the configuration switching is done here.
*/
#ifdef __KERNEL__
#ifndef __CONFIG_8xx_DEFS
#define __CONFIG_8xx_DEFS
#ifdef CONFIG_8xx
#ifdef CONFIG_FADS
#include <platforms/fads.h>
#endif
#if defined(CONFIG_MPC885ADS)
#include <platforms/8xx/mpc885ads.h>
#endif
#endif /* CONFIG_8xx */
#endif /* __CONFIG_8xx_DEFS */
#endif /* __KERNEL__ */

2
include/asm-powerpc/time.h
View file

@ -39,6 +39,8 @@ extern void generic_calibrate_decr(void);
extern void wakeup_decrementer(void);
extern void snapshot_timebase(void);
extern void set_dec_cpu6(unsigned int val);
/* Some sane defaults: 125 MHz timebase, 1GHz processor */
extern unsigned long ppc_proc_freq;
#define DEFAULT_PROC_FREQ (DEFAULT_TB_FREQ * 8)

1
include/asm-ppc/commproc.h
View file

@ -77,6 +77,7 @@ extern int cpm_dpfree(uint offset);
extern uint cpm_dpalloc_fixed(uint offset, uint size, uint align);
extern void cpm_dpdump(void);
extern void *cpm_dpram_addr(uint offset);
extern uint cpm_dpram_phys(u8* addr);
extern void cpm_setbrg(uint brg, uint rate);
extern uint m8xx_cpm_hostalloc(uint size);