Date: Mon, 05 Apr 1999 08:54:34 -0700 From: Ted Faber <faber@ISI.EDU> To: NAKAGAWA Yoshihisa <y-nakaga@nwsl.mesh.ad.jp> Cc: Nate Williams <nate@mt.sri.com>, Nick Sayer <nsayer@quack.kfu.com>, freebsd-mobile@FreeBSD.ORG Subject: Re: Any success with CirrusLogic 6729/6730??? Message-ID: <199904051554.IAA25536@boreas.isi.edu> In-Reply-To: Your message of "Sat, 03 Apr 1999 11:43:25 %2B0900." <199904030243.LAA06995@chandra.eatell.msr.prug.or.jp>
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NAKAGAWA Yoshihisa wrote:
>> Someone with a 6729 try applying this patch to pcic_p.[ch] (i.e., cd
>
>Probably same initialize code is working with O2 micro OZ6729/6730.
>
>> + io_port = PCIC_INDEX_0 + num6729 * CLPD6729_NUM_REGS;
>
>Cirrus chip has 4byte boundary. First chip is 0x3e0, second chip
>is 0x3e4, ...
Thanks. Corrected.
>
>Using hard code PCIC_INDEX_0 is dirty.
>
>This code is always re-setup ioports, if BIOS setup it, it should
>be use. Because, BIOS is resource management for the machine.
It's a dirty world. How can I tell the difference between an
uninitialized chip and one that the BIOS has initialized?
I would be happy to use the BIOS values if I could identify them.
Also the 3.1 pcic code seems to always look for the card at
PCIC_INDEX_0 (Nate, Nick, did I read that right?). I agree that it
would be better to be more general, but I don't want to rewrite pcic.c.
>
>> + if (unit == 1)
>> + num6729++;
>
>What's ? CL-PD6729 is not multi-function.
That's actually supposed to look for a second card, but it's in the
wrong place. Thanks for catching it.
>
>> printf("CardBus: Legacy PC-card 16bit I/O address [0x%x]\n",
>
>CL-PD6729 is not CardBus controller. :-)
Can you tell I cut and pasted some of this code :-) Changed.
Here's an updated patch. Has anyone other than Chung-Kie Tung tried
this? He had some problems with it that I'm running down, and I'm
interested to see if others have the same ones.
*** pcic_p.c.orig Sun Dec 13 22:32:57 1998
- --- pcic_p.c Mon Apr 5 07:51:13 1999
***************
*** 48,53 ****
- --- 48,54 ----
static void pcic_pci_attach(pcici_t, int);
static void pd6832_legacy_init(pcici_t tag, int unit);
+ static void pd6729_init(pcici_t tag, int unit);
static struct pci_device pcic_pci_driver = {
"pcic",
***************
*** 97,102 ****
- --- 98,106 ----
case PCI_DEVICE_ID_PCIC_CLPD6832:
pd6832_legacy_init(config_id, unit);
break;
+ case PCI_DEVICE_ID_PCIC_CLPD6729:
+ pd6729_init(config_id, unit);
+ break;
}
if (bootverbose) {
***************
*** 191,196 ****
- --- 195,236 ----
if (bootverbose)
printf("CardBus: Legacy PC-card 16bit I/O address [0x%x]\n",
+ io_port);
+ }
+ /*
+ * Set up the CL-PD6729 This routine is called once per PCMCIA socket.
+ */
+ static void
+ pd6729_init(pcici_t tag, int unit)
+ {
+ u_short io_port; /* the io_port to map this slot on */
+ static int num6729 = 0; /* The number of 6832s initialized */
+
+ if (unit == 1)
+ num6729++;
+
+ /*
+ * Some BIOS leave the i/o address uninitialized. This
+ * insures that the PD6729 puts itself where the driver will
+ * look. We assume that multiple 6829's should be laid out
+ * sequentially. (the extra 2 is because each register is 2
+ * bytes wide)
+ */
+ io_port = PCIC_INDEX_0 + num6729 * CLPD6729_NUM_REGS *2;
+
+ /*
+ * Configure the I/O window to contain CLPD6832_NUM_REGS
+ * words.
+ */
+ pci_conf_write(tag, CLPD6729_BASE0, io_port | 1);
+
+ /*
+ * Set default operating mode (I/O port space)
+ */
+ pci_conf_write(tag, PCI_COMMAND_STATUS_REG, CLPD6729_COMMAND_DEFAULTS );
+
+ if (bootverbose)
+ printf("PC-card 16bit I/O address [0x%x]\n",
io_port);
}
#endif /* NPCI > 0 */
*** pcic_p.h.orig Tue Jan 20 13:11:03 1998
- --- pcic_p.h Fri Apr 2 10:56:24 1999
***************
*** 52,54 ****
- --- 52,62 ----
#define CLPD6832_NUM_REGS 2
/* End of CL-PD6832 defines */
+ /* CL-PD6729 defines */
+ #define CLPD6729_BASE0 0x0010
+
+ /* Configuration constants */
+ #define CLPD6729_COMMAND_DEFAULTS 0x00000041
+ #define CLPD6729_NUM_REGS 2
+
+ /* End of CL-PD6832 defines */
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