diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 21:55:47 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 21:55:47 -0700 |
commit | e86908614f2c7fec401827e5cefd7a6ea9407f85 (patch) | |
tree | fcb5d9e52422b37bdaf0e647126ebdfc1680f162 /arch/powerpc/boot/fsl-soc.c | |
parent | 547307420931344a868275bd7ea7a30f117a15a9 (diff) | |
parent | 9b4b8feb962f4b3e74768b7205f1f8f6cce87238 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits)
[POWERPC] Add memchr() to the bootwrapper
[POWERPC] Implement logging of unhandled signals
[POWERPC] Add legacy serial support for OPB with flattened device tree
[POWERPC] Use 1TB segments
[POWERPC] XilinxFB: Allow fixed framebuffer base address
[POWERPC] XilinxFB: Add support for custom screen resolution
[POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters
[POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci
[POWERPC] 4xx: Kilauea defconfig file
[POWERPC] 4xx: Kilauea DTS
[POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x
[POWERPC] 4xx: Add AMCC 405EX support to cputable.c
[POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable
[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers
[POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig
[POWERPC] 85xx: Killed <asm/mpc85xx.h>
[POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS
[POWERPC] 85xx: Convert mpc8560ads to the new CPM binding.
[POWERPC] mpc8272ads: Remove muram from the CPM reg property.
[POWERPC] Make clockevents work on PPC601 processors
...
Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
Diffstat (limited to 'arch/powerpc/boot/fsl-soc.c')
-rw-r--r-- | arch/powerpc/boot/fsl-soc.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/powerpc/boot/fsl-soc.c b/arch/powerpc/boot/fsl-soc.c new file mode 100644 index 00000000000..b835ed69e1a --- /dev/null +++ b/arch/powerpc/boot/fsl-soc.c @@ -0,0 +1,57 @@ +/* + * Freescale SOC support functions + * + * Author: Scott Wood <scottwood@freescale.com> + * + * Copyright (c) 2007 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include "ops.h" +#include "types.h" +#include "fsl-soc.h" +#include "stdio.h" + +static u32 prop_buf[MAX_PROP_LEN / 4]; + +u32 *fsl_get_immr(void) +{ + void *soc; + unsigned long ret = 0; + + soc = find_node_by_devtype(NULL, "soc"); + if (soc) { + int size; + u32 naddr; + + size = getprop(soc, "#address-cells", prop_buf, MAX_PROP_LEN); + if (size == 4) + naddr = prop_buf[0]; + else + naddr = 2; + + if (naddr != 1 && naddr != 2) + goto err; + + size = getprop(soc, "ranges", prop_buf, MAX_PROP_LEN); + + if (size < 12) + goto err; + if (prop_buf[0] != 0) + goto err; + if (naddr == 2 && prop_buf[1] != 0) + goto err; + + if (!dt_xlate_addr(soc, prop_buf + naddr, 8, &ret)) + ret = 0; + } + +err: + if (!ret) + printf("fsl_get_immr: Failed to find immr base\r\n"); + + return (u32 *)ret; +} |