Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

Linux/arch/powerpc/platforms/8xx/mpc86xads_setup.c

  1 /*arch/powerpc/platforms/8xx/mpc86xads_setup.c
  2  *
  3  * Platform setup for the Freescale mpc86xads board
  4  *
  5  * Vitaly Bordug <vbordug@ru.mvista.com>
  6  *
  7  * Copyright 2005 MontaVista Software Inc.
  8  *
  9  * Heavily modified by Scott Wood <scottwood@freescale.com>
 10  * Copyright 2007 Freescale Semiconductor, Inc.
 11  *
 12  * This file is licensed under the terms of the GNU General Public License
 13  * version 2. This program is licensed "as is" without any warranty of any
 14  * kind, whether express or implied.
 15  */
 16 
 17 #include <linux/init.h>
 18 #include <linux/of_address.h>
 19 #include <linux/of_fdt.h>
 20 #include <linux/of_platform.h>
 21 
 22 #include <asm/io.h>
 23 #include <asm/machdep.h>
 24 #include <asm/time.h>
 25 #include <asm/8xx_immap.h>
 26 #include <asm/cpm1.h>
 27 #include <asm/fs_pd.h>
 28 #include <asm/udbg.h>
 29 
 30 #include "mpc86xads.h"
 31 #include "mpc8xx.h"
 32 
 33 struct cpm_pin {
 34         int port, pin, flags;
 35 };
 36 
 37 static struct cpm_pin mpc866ads_pins[] = {
 38         /* SMC1 */
 39         {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
 40         {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
 41 
 42         /* SMC2 */
 43         {CPM_PORTB, 21, CPM_PIN_INPUT}, /* RX */
 44         {CPM_PORTB, 20, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
 45 
 46         /* SCC1 */
 47         {CPM_PORTA, 6, CPM_PIN_INPUT}, /* CLK1 */
 48         {CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */
 49         {CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */
 50         {CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */
 51         {CPM_PORTB, 19, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */
 52         {CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* RENA */
 53         {CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CLSN */
 54 
 55         /* MII */
 56         {CPM_PORTD, 3, CPM_PIN_OUTPUT},
 57         {CPM_PORTD, 4, CPM_PIN_OUTPUT},
 58         {CPM_PORTD, 5, CPM_PIN_OUTPUT},
 59         {CPM_PORTD, 6, CPM_PIN_OUTPUT},
 60         {CPM_PORTD, 7, CPM_PIN_OUTPUT},
 61         {CPM_PORTD, 8, CPM_PIN_OUTPUT},
 62         {CPM_PORTD, 9, CPM_PIN_OUTPUT},
 63         {CPM_PORTD, 10, CPM_PIN_OUTPUT},
 64         {CPM_PORTD, 11, CPM_PIN_OUTPUT},
 65         {CPM_PORTD, 12, CPM_PIN_OUTPUT},
 66         {CPM_PORTD, 13, CPM_PIN_OUTPUT},
 67         {CPM_PORTD, 14, CPM_PIN_OUTPUT},
 68         {CPM_PORTD, 15, CPM_PIN_OUTPUT},
 69 
 70         /* I2C */
 71         {CPM_PORTB, 26, CPM_PIN_INPUT | CPM_PIN_OPENDRAIN},
 72         {CPM_PORTB, 27, CPM_PIN_INPUT | CPM_PIN_OPENDRAIN},
 73 };
 74 
 75 static void __init init_ioports(void)
 76 {
 77         int i;
 78 
 79         for (i = 0; i < ARRAY_SIZE(mpc866ads_pins); i++) {
 80                 struct cpm_pin *pin = &mpc866ads_pins[i];
 81                 cpm1_set_pin(pin->port, pin->pin, pin->flags);
 82         }
 83 
 84         cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
 85         cpm1_clk_setup(CPM_CLK_SMC2, CPM_BRG2, CPM_CLK_RTX);
 86         cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK1, CPM_CLK_TX);
 87         cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK2, CPM_CLK_RX);
 88 
 89         /* Set FEC1 and FEC2 to MII mode */
 90         clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180);
 91 }
 92 
 93 static void __init mpc86xads_setup_arch(void)
 94 {
 95         struct device_node *np;
 96         u32 __iomem *bcsr_io;
 97 
 98         cpm_reset();
 99         init_ioports();
100 
101         np = of_find_compatible_node(NULL, NULL, "fsl,mpc866ads-bcsr");
102         if (!np) {
103                 printk(KERN_CRIT "Could not find fsl,mpc866ads-bcsr node\n");
104                 return;
105         }
106 
107         bcsr_io = of_iomap(np, 0);
108         of_node_put(np);
109 
110         if (bcsr_io == NULL) {
111                 printk(KERN_CRIT "Could not remap BCSR\n");
112                 return;
113         }
114 
115         clrbits32(bcsr_io, BCSR1_RS232EN_1 | BCSR1_RS232EN_2 | BCSR1_ETHEN);
116         iounmap(bcsr_io);
117 }
118 
119 static int __init mpc86xads_probe(void)
120 {
121         unsigned long root = of_get_flat_dt_root();
122         return of_flat_dt_is_compatible(root, "fsl,mpc866ads");
123 }
124 
125 static const struct of_device_id of_bus_ids[] __initconst = {
126         { .name = "soc", },
127         { .name = "cpm", },
128         { .name = "localbus", },
129         {},
130 };
131 
132 static int __init declare_of_platform_devices(void)
133 {
134         of_platform_bus_probe(NULL, of_bus_ids, NULL);
135 
136         return 0;
137 }
138 machine_device_initcall(mpc86x_ads, declare_of_platform_devices);
139 
140 define_machine(mpc86x_ads) {
141         .name                   = "MPC86x ADS",
142         .probe                  = mpc86xads_probe,
143         .setup_arch             = mpc86xads_setup_arch,
144         .init_IRQ               = mpc8xx_pics_init,
145         .get_irq                = mpc8xx_get_irq,
146         .restart                = mpc8xx_restart,
147         .calibrate_decr         = mpc8xx_calibrate_decr,
148         .set_rtc_time           = mpc8xx_set_rtc_time,
149         .get_rtc_time           = mpc8xx_get_rtc_time,
150         .progress               = udbg_progress,
151 };
152 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us