hoe to define CPM_MAP_ADDR ?
jie han
jiehanca at yahoo.com.cn
Wed Aug 16 13:24:19 EST 2006
I am trying to take a working embedded linux system from kernel 2.4 to
2.6. The hardware is a custom board using a MPC8270 processor.
The working system uses u-boot 1.1.1 with linux kernel 2.4.24.
I am using the same u-boot and I am trying to port linux kernel 2.6.15
to our platform. I just wonder hwo to define CPM_MAP_ADDR to my config file
at /arch/ppc/platforms/olt8270.h,thsi show file context as follow
#ifndef __OLT8270_PLATFORM
#define __OLT8270_PLATFORM
//#define CPM_MAP_ADDR ((uint)0xf0000000)
#define IMAP_ADDR ((uint)0xf0000000)
#define BOOTROM_RESTART_ADDR ((uint)0xfff00100)
/* For our show_cpuinfo hooks. */
#define CPUINFO_VENDOR "Ocean Broadband Ltd"
#define CPUINFO_MACHINE "OLT8270 PowerPC"
/* A Board Information structure that is given to a program when
* prom starts it up.
*/
typedef struct bd_info {
unsigned long bi_memstart; /* Memory start address */
unsigned long bi_memsize; /* Memory (end) size in bytes */
unsigned long bi_flashstart; /* start of FLASH memory */
unsigned long bi_flashsize; /* size of FLASH memory */
unsigned long bi_flashoffset; /* reserved area for startup monitor */
unsigned long bi_sramstart; /* start of SRAM memory */
unsigned long bi_sramsize; /* size of SRAM memory */
unsigned long bi_immr; /* IMMR when called from boot rom */
unsigned long bi_bootflags; /* boot flag (for Lynx OS) */
unsigned long bi_ip_addr; /* IP Address */
unsigned char bi_enetaddr[6]; /* Ethernet address */
unsigned short bi_ethspeed; /* Ethernet speed in Mbps */
unsigned long bi_intfreq; /* Internal Freq, in Hz */
unsigned long bi_busfreq; /* Bus Freq, in MHz */
unsigned long bi_cpmfreq; /* CPM Freq, in MHz */
unsigned long bi_brgfreq; /* BRG Freq, in MHz */
unsigned long bi_sccfreq; /* SCC Freq, in MHz */
unsigned long bi_vco; /* VCO Out from PLL */
unsigned long bi_baudrate; /* Default console baud rate */
} bd_t;
extern bd_t m8xx_board_info;
#endif /* __OLT8270_PLATFORM */
Sincerely,
Jie
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