Hi Finn,
A multi-platform kernel binary needs to decide at run-time how to dispatch
the arch_nvram_ops calls. Add platform-independent arch_nvram_ops, for use
when multiple platform-specific NVRAM ops implementations are needed.
Enable CONFIG_HAVE_ARCH_NVRAM_OPS for Macs.
Thanks for your patch!
On Sun, Jun 28, 2015 at 3:42 AM, Finn Thain <fthain@xxxxxxxxxxxxxxxxxxx> wrote:
--- linux.orig/arch/m68k/kernel/setup_mm.c 2015-06-28 11:41:27.000000000 +1000
+++ linux/arch/m68k/kernel/setup_mm.c 2015-06-28 11:41:56.000000000 +1000
@@ -568,3 +569,109 @@ static int __init adb_probe_sync_enable
__setup("adb_sync", adb_probe_sync_enable);
#endif /* CONFIG_ADB */
+
+#if IS_ENABLED(CONFIG_NVRAM)
+extern unsigned char mac_pram_read_byte(int);
+extern void mac_pram_write_byte(unsigned char, int);
+extern ssize_t mac_pram_get_size(void);
+
+extern ssize_t atari_nvram_read(char *, size_t, loff_t *);
+extern ssize_t atari_nvram_write(char *, size_t, loff_t *);
+extern long atari_nvram_set_checksum(void);
+extern long atari_nvram_initialize(void);
+extern ssize_t atari_nvram_get_size(void);
Forward declarations belong in a header file, to be included by both
producers and consumers.
--- linux.orig/arch/m68k/Kconfig 2015-06-28 11:41:39.000000000 +1000
+++ linux/arch/m68k/Kconfig 2015-06-28 11:41:56.000000000 +1000
@@ -72,7 +72,7 @@ config PGTABLE_LEVELS
default 3
config HAVE_ARCH_NVRAM_OPS
- def_bool ATARI
+ def_bool ATARI || MAC
For maintainability, it's better to just have "bool" here, and let both the
ATARI and MAC config symbols select HAVE_ARCH_NVRAM_OPS.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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