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authorLaurent Vivier <laurent@lvivier.info>2008-11-15 10:10:10 -0500
committerGeert Uytterhoeven <geert@linux-m68k.org>2009-03-26 16:15:27 -0400
commit8852ecd97488249ca7fe2c0d3eb44cae95886881 (patch)
treebc23ec6db412733952809ebc5307535ed043c4a0 /arch
parent7ad93b42bd135641ddc2c298f030132aca7aeca3 (diff)
m68k: mac - Add SWIM floppy support
It allows to read data from a floppy, but not to write to, and to eject the floppy (useful on our Mac without eject button). Signed-off-by: Laurent Vivier <Laurent@lvivier.info> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/m68k/mac/config.c44
-rw-r--r--arch/m68k/mac/via.c9
2 files changed, 53 insertions, 0 deletions
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 3a1c0b2862ed..be017984a456 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -22,6 +22,7 @@
22/* keyb */ 22/* keyb */
23#include <linux/init.h> 23#include <linux/init.h>
24#include <linux/vt_kern.h> 24#include <linux/vt_kern.h>
25#include <linux/platform_device.h>
25 26
26#define BOOTINFO_COMPAT_1_0 27#define BOOTINFO_COMPAT_1_0
27#include <asm/setup.h> 28#include <asm/setup.h>
@@ -43,6 +44,10 @@
43#include <asm/mac_oss.h> 44#include <asm/mac_oss.h>
44#include <asm/mac_psc.h> 45#include <asm/mac_psc.h>
45 46
47/* platform device info */
48
49#define SWIM_IO_SIZE 0x2000 /* SWIM IO resource size */
50
46/* Mac bootinfo struct */ 51/* Mac bootinfo struct */
47 52
48struct mac_booter_data mac_bi_data; 53struct mac_booter_data mac_bi_data;
@@ -870,3 +875,42 @@ static void mac_get_model(char *str)
870 strcpy(str, "Macintosh "); 875 strcpy(str, "Macintosh ");
871 strcat(str, macintosh_config->name); 876 strcat(str, macintosh_config->name);
872} 877}
878
879static struct resource swim_resources[1];
880
881static struct platform_device swim_device = {
882 .name = "swim",
883 .id = -1,
884 .num_resources = ARRAY_SIZE(swim_resources),
885 .resource = swim_resources,
886};
887
888static struct platform_device *mac_platform_devices[] __initdata = {
889 &swim_device
890};
891
892int __init mac_platform_init(void)
893{
894 u8 *swim_base;
895
896 switch (macintosh_config->floppy_type) {
897 case MAC_FLOPPY_SWIM_ADDR1:
898 swim_base = (u8 *)(VIA1_BASE + 0x1E000);
899 break;
900 case MAC_FLOPPY_SWIM_ADDR2:
901 swim_base = (u8 *)(VIA1_BASE + 0x16000);
902 break;
903 default:
904 return 0;
905 }
906
907 swim_resources[0].name = "swim-regs";
908 swim_resources[0].start = (resource_size_t)swim_base;
909 swim_resources[0].end = (resource_size_t)(swim_base + SWIM_IO_SIZE);
910 swim_resources[0].flags = IORESOURCE_MEM;
911
912 return platform_add_devices(mac_platform_devices,
913 ARRAY_SIZE(mac_platform_devices));
914}
915
916arch_initcall(mac_platform_init);
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 7d97ba54536e..11bce3cb6482 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -645,3 +645,12 @@ int via_irq_pending(int irq)
645 } 645 }
646 return 0; 646 return 0;
647} 647}
648
649void via1_set_head(int head)
650{
651 if (head == 0)
652 via1[vBufA] &= ~VIA1A_vHeadSel;
653 else
654 via1[vBufA] |= VIA1A_vHeadSel;
655}
656EXPORT_SYMBOL(via1_set_head);