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[PATCH] ppc32: Cleanup AMCC PPC44x eval board U-Boot support

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Cleanup PPC440 eval boards (bamboo, ebony, luan and ocotea) to better
support U-Boot as bootloader.

Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Matt Porter 2005-10-28 17:46:14 -07:00 committed by Paul Mackerras
parent de957c89b7
commit d5f7b06b03
6 changed files with 53 additions and 56 deletions
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14
arch/ppc/platforms/4xx/bamboo.c
View File

@ -51,7 +51,7 @@
#include <syslib/gen550.h>
#include <syslib/ibm440gx_common.h>
bd_t __res;
extern bd_t __res;
static struct ibm44x_clocks clocks __initdata;
@ -425,17 +425,7 @@ bamboo_setup_arch(void)
void __init platform_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
/*
* If we were passed in a board information, copy it into the
* residual data area.
*/
if (r3)
__res = *(bd_t *)(r3 + KERNELBASE);
ibm44x_platform_init();
ibm44x_platform_init(r3, r4, r5, r6, r7);
ppc_md.setup_arch = bamboo_setup_arch;
ppc_md.show_cpuinfo = bamboo_show_cpuinfo;

13
arch/ppc/platforms/4xx/ebony.c
View File

@ -54,7 +54,7 @@
#include <syslib/gen550.h>
#include <syslib/ibm440gp_common.h>
bd_t __res;
extern bd_t __res;
static struct ibm44x_clocks clocks __initdata;
@ -317,16 +317,7 @@ ebony_setup_arch(void)
void __init platform_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
/*
* If we were passed in a board information, copy it into the
* residual data area.
*/
if (r3)
__res = *(bd_t *)(r3 + KERNELBASE);
ibm44x_platform_init();
ibm44x_platform_init(r3, r4, r5, r6, r7);
ppc_md.setup_arch = ebony_setup_arch;
ppc_md.show_cpuinfo = ebony_show_cpuinfo;

13
arch/ppc/platforms/4xx/luan.c
View File

@ -52,7 +52,7 @@
#include <syslib/ibm440gx_common.h>
#include <syslib/ibm440sp_common.h>
bd_t __res;
extern bd_t __res;
static struct ibm44x_clocks clocks __initdata;
@ -355,16 +355,7 @@ luan_setup_arch(void)
void __init platform_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
/*
* If we were passed in a board information, copy it into the
* residual data area.
*/
if (r3)
__res = *(bd_t *)(r3 + KERNELBASE);
ibm44x_platform_init();
ibm44x_platform_init(r3, r4, r5, r6, r7);
ppc_md.setup_arch = luan_setup_arch;
ppc_md.show_cpuinfo = luan_show_cpuinfo;

31
arch/ppc/platforms/4xx/ocotea.c
View File

@ -52,7 +52,7 @@
#include <syslib/gen550.h>
#include <syslib/ibm440gx_common.h>
bd_t __res;
extern bd_t __res;
static struct ibm44x_clocks clocks __initdata;
@ -286,6 +286,15 @@ ocotea_setup_arch(void)
ibm440gx_tah_enable();
/*
* Determine various clocks.
* To be completely correct we should get SysClk
* from FPGA, because it can be changed by on-board switches
* --ebs
*/
ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
ocp_sys_info.opb_bus_freq = clocks.opb;
/* Setup TODC access */
TODC_INIT(TODC_TYPE_DS1743,
0,
@ -324,25 +333,7 @@ static void __init ocotea_init(void)
void __init platform_init(unsigned long r3, unsigned long r4,
unsigned long r5, unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
/*
* If we were passed in a board information, copy it into the
* residual data area.
*/
if (r3)
__res = *(bd_t *)(r3 + KERNELBASE);
/*
* Determine various clocks.
* To be completely correct we should get SysClk
* from FPGA, because it can be changed by on-board switches
* --ebs
*/
ibm440gx_get_clocks(&clocks, 33333333, 6 * 1843200);
ocp_sys_info.opb_bus_freq = clocks.opb;
ibm44x_platform_init();
ibm44x_platform_init(r3, r4, r5, r6, r7);
ppc_md.setup_arch = ocotea_setup_arch;
ppc_md.show_cpuinfo = ocotea_show_cpuinfo;

35
arch/ppc/syslib/ibm44x_common.c
View File

@ -27,9 +27,14 @@
#include <asm/time.h>
#include <asm/ppc4xx_pic.h>
#include <asm/param.h>
#include <asm/bootinfo.h>
#include <asm/ppcboot.h>
#include <syslib/gen550.h>
/* Global Variables */
bd_t __res;
phys_addr_t fixup_bigphys_addr(phys_addr_t addr, phys_addr_t size)
{
phys_addr_t page_4gb = 0;
@ -150,8 +155,36 @@ static unsigned long __init ibm44x_find_end_of_memory(void)
return mem_size;
}
void __init ibm44x_platform_init(void)
void __init ibm44x_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7)
{
parse_bootinfo(find_bootinfo());
/*
* If we were passed in a board information, copy it into the
* residual data area.
*/
if (r3)
__res = *(bd_t *)(r3 + KERNELBASE);
#if defined(CONFIG_BLK_DEV_INITRD)
/*
* If the init RAM disk has been configured in, and there's a valid
* starting address for it, set it up.
*/
if (r4) {
initrd_start = r4 + KERNELBASE;
initrd_end = r5 + KERNELBASE;
}
#endif /* CONFIG_BLK_DEV_INITRD */
/* Copy the kernel command line arguments to a safe place. */
if (r6) {
*(char *) (r7 + KERNELBASE) = 0;
strcpy(cmd_line, (char *) (r6 + KERNELBASE));
}
ppc_md.init_IRQ = ppc4xx_pic_init;
ppc_md.find_end_of_memory = ibm44x_find_end_of_memory;
ppc_md.restart = ibm44x_restart;

3
arch/ppc/syslib/ibm44x_common.h
View File

@ -36,7 +36,8 @@ struct ibm44x_clocks {
};
/* common 44x platform init */
void ibm44x_platform_init(void) __init;
void ibm44x_platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
unsigned long r6, unsigned long r7) __init;
/* initialize decrementer and tick-related variables */
void ibm44x_calibrate_decr(unsigned int freq) __init;