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git.ipfire.org Git - people/ms/u-boot.git/blob - post/cpu/mpc8xx/usb.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * The USB controller is tested in the local loopback mode.
30 * It is configured so that endpoint 0 operates as host and endpoint 1
31 * operates as function endpoint. After that an IN token transaction
33 * Refer to MPC850 User Manual, Section 32.11.1 USB Host Controller
34 * Initialization Example.
39 #if CONFIG_POST & CONFIG_SYS_POST_USB
46 #define PROFF_USB ((uint)0x0000)
48 #define CPM_USB_EP0_BASE 0x0a00
49 #define CPM_USB_EP1_BASE 0x0a20
51 #define CPM_USB_DT0_BASE 0x0a80
52 #define CPM_USB_DT1_BASE 0x0a90
53 #define CPM_USB_DR0_BASE 0x0aa0
54 #define CPM_USB_DR1_BASE 0x0ab0
56 #define CPM_USB_RX0_BASE 0x0b00
57 #define CPM_USB_RX1_BASE 0x0b08
58 #define CPM_USB_TX0_BASE 0x0b20
59 #define CPM_USB_TX1_BASE 0x0b28
61 #define USB_EXPECT(x) if (!(x)) goto Done;
63 typedef struct usb_param
{
75 typedef struct usb_param_block
{
105 int usb_post_test (int flags
)
108 volatile immap_t
*im
= (immap_t
*) CONFIG_SYS_IMMR
;
109 volatile cpm8xx_t
*cp
= &(im
->im_cpm
);
110 volatile usb_param_t
*pram_ptr
;
115 volatile usb_t
*usbr
;
116 volatile usb_param_block_t
*ep0
;
117 volatile usb_param_block_t
*ep1
;
120 pram_ptr
= (usb_param_t
*) & (im
->im_cpm
.cp_dparam
[PROFF_USB
]);
121 dpram
= (uint
) im
->im_cpm
.cp_dpmem
;
123 tx
= (cbd_t
*) (dpram
+ CPM_USB_TX0_BASE
);
124 rx
= (cbd_t
*) (dpram
+ CPM_USB_RX0_BASE
);
125 ep0
= (usb_param_block_t
*) (dpram
+ CPM_USB_EP0_BASE
);
126 ep1
= (usb_param_block_t
*) (dpram
+ CPM_USB_EP1_BASE
);
127 usbr
= (usb_t
*) & (im
->im_cpm
.cp_scc
[0]);
130 im
->im_ioport
.iop_padir
&= ~(ushort
) 0x0200;
131 im
->im_ioport
.iop_papar
|= (ushort
) 0x0200;
133 cp
->cp_sicr
&= ~0x000000FF;
134 cp
->cp_sicr
|= 0x00000018;
136 cp
->cp_brgc4
= 0x00010001;
139 im
->im_ioport
.iop_padir
&= ~(ushort
) 0x0002;
140 im
->im_ioport
.iop_padir
&= ~(ushort
) 0x0001;
142 im
->im_ioport
.iop_papar
|= (ushort
) 0x0002;
143 im
->im_ioport
.iop_papar
|= (ushort
) 0x0001;
146 im
->im_ioport
.iop_pcdir
&= ~(ushort
) 0x0020;
147 im
->im_ioport
.iop_pcdir
&= ~(ushort
) 0x0010;
149 im
->im_ioport
.iop_pcpar
&= ~(ushort
) 0x0020;
150 im
->im_ioport
.iop_pcpar
&= ~(ushort
) 0x0010;
152 im
->im_ioport
.iop_pcso
|= (ushort
) 0x0020;
153 im
->im_ioport
.iop_pcso
|= (ushort
) 0x0010;
156 im
->im_ioport
.iop_pcdir
|= (ushort
) 0x0200;
157 im
->im_ioport
.iop_pcdir
|= (ushort
) 0x0100;
159 im
->im_ioport
.iop_pcpar
|= (ushort
) 0x0200;
160 im
->im_ioport
.iop_pcpar
|= (ushort
) 0x0100;
163 pram_ptr
->frame_n
= 0;
166 pram_ptr
->ep0ptr
= DPRAM
+ CPM_USB_EP0_BASE
;
167 pram_ptr
->ep1ptr
= DPRAM
+ CPM_USB_EP1_BASE
;
170 tx
[0].cbd_sc
= 0xB800;
171 tx
[0].cbd_datlen
= 3;
172 tx
[0].cbd_bufaddr
= dpram
+ CPM_USB_DT0_BASE
;
174 tx
[1].cbd_sc
= 0xBC80;
175 tx
[1].cbd_datlen
= 3;
176 tx
[1].cbd_bufaddr
= dpram
+ CPM_USB_DT1_BASE
;
178 rx
[0].cbd_sc
= 0xA000;
179 rx
[0].cbd_datlen
= 0;
180 rx
[0].cbd_bufaddr
= dpram
+ CPM_USB_DR0_BASE
;
182 rx
[1].cbd_sc
= 0xA000;
183 rx
[1].cbd_datlen
= 0;
184 rx
[1].cbd_bufaddr
= dpram
+ CPM_USB_DR1_BASE
;
187 *(volatile int *) (dpram
+ CPM_USB_DT0_BASE
) = 0x69856000;
188 *(volatile int *) (dpram
+ CPM_USB_DT1_BASE
) = 0xABCD1234;
190 *(volatile int *) (dpram
+ CPM_USB_DR0_BASE
) = 0;
191 *(volatile int *) (dpram
+ CPM_USB_DR1_BASE
) = 0;
194 ep0
->rbase
= DPRAM
+ CPM_USB_RX0_BASE
;
195 ep0
->tbase
= DPRAM
+ CPM_USB_TX0_BASE
;
199 ep0
->rbptr
= DPRAM
+ CPM_USB_RX0_BASE
;
200 ep0
->tbptr
= DPRAM
+ CPM_USB_TX0_BASE
;
204 ep1
->rbase
= DPRAM
+ CPM_USB_RX1_BASE
;
205 ep1
->tbase
= DPRAM
+ CPM_USB_TX1_BASE
;
209 ep1
->rbptr
= DPRAM
+ CPM_USB_RX1_BASE
;
210 ep1
->tbptr
= DPRAM
+ CPM_USB_TX1_BASE
;
214 usbr
->usep
[0] = 0x0000;
215 usbr
->usep
[1] = 0x1100;
216 usbr
->usep
[2] = 0x2200;
217 usbr
->usep
[3] = 0x3300;
236 /* Wait for the data packet to be transmitted */
237 for (j
= 0; j
< TOUT_LOOP
; j
++) {
238 if (tx
[1].cbd_sc
& (ushort
) 0x8000)
244 USB_EXPECT (j
< TOUT_LOOP
);
246 USB_EXPECT (tx
[0].cbd_sc
== 0x3800);
247 USB_EXPECT (tx
[0].cbd_datlen
== 3);
249 USB_EXPECT (tx
[1].cbd_sc
== 0x3C80);
250 USB_EXPECT (tx
[1].cbd_datlen
== 3);
252 USB_EXPECT (rx
[0].cbd_sc
== 0x2C00);
253 USB_EXPECT (rx
[0].cbd_datlen
== 5);
255 USB_EXPECT (*(volatile int *) (dpram
+ CPM_USB_DR0_BASE
) ==
257 USB_EXPECT (*(volatile char *) (dpram
+ CPM_USB_DR0_BASE
+ 4) == 0x42);
265 #endif /* CONFIG_POST & CONFIG_SYS_POST_USB */