Add CFE runtime detection
SVN-Revision: 6641
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@ -29,10 +29,19 @@
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#include <asm/bootinfo.h>
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#include <asm/bootinfo.h>
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#include <asm/addrspace.h>
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#include <asm/addrspace.h>
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/* boot loaders specific definitions */
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#define CFE_EPTSEAL 0x43464531
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#define CFE 1
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#define MYLOADER 2
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#define UNKNOWN 0
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void setup_prom_printf(int);
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void setup_prom_printf(int);
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void prom_printf(char *, ...);
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void prom_printf(char *, ...);
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void prom_meminit(void);
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void prom_meminit(void);
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/* we assume we don't know the boot loader by default */
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int boot_loader_type = UNKNOWN;
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#define ADM5120_ENVC 1
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#define ADM5120_ENVC 1
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char *adm5120_envp[2*ADM5120_ENVC] = {"memsize","0x001000000"};
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char *adm5120_envp[2*ADM5120_ENVC] = {"memsize","0x001000000"};
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@ -108,6 +117,31 @@ void __init prom_init(void)
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/* init command line, register a default kernel command line */
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/* init command line, register a default kernel command line */
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strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2 init=/etc/preinit");
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strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2 init=/etc/preinit");
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/* check for CFE by finding the CFE magic number */
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int *prom_vec = (int *) fw_arg3;
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int argc = fw_arg0;
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unsigned int cfe_eptseal;
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if (argc < 0)
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cfe_eptseal = (uint32_t)(unsigned long)prom_vec;
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else {
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if ((int32_t)(long)prom_vec < 0)
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/*
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* Old loaders all it gives us is the handle,
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* so assume the seal.
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*/
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cfe_eptseal = CFE_EPTSEAL;
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else
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/*
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* Newer loaders bundle the handle/ept/eptseal
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*/
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cfe_eptseal = (unsigned int)((uint32_t *)prom_vec)[3];
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}
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if (cfe_eptseal == CFE_EPTSEAL) {
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boot_loader_type = CFE;
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printk("adm5120 : CFE boot loader\n");
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}
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/* init memory map */
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/* init memory map */
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prom_meminit();
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prom_meminit();
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}
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}
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