Version:  2.0.40 2.2.26 2.4.37 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6

Linux/arch/powerpc/platforms/85xx/mpc85xx_ads.c

  1 /*
  2  * MPC85xx setup and early boot code plus other random bits.
  3  *
  4  * Maintained by Kumar Gala (see MAINTAINERS for contact information)
  5  *
  6  * Copyright 2005 Freescale Semiconductor Inc.
  7  *
  8  * This program is free software; you can redistribute  it and/or modify it
  9  * under  the terms of  the GNU General  Public License as published by the
 10  * Free Software Foundation;  either version 2 of the  License, or (at your
 11  * option) any later version.
 12  */
 13 
 14 #include <linux/stddef.h>
 15 #include <linux/kernel.h>
 16 #include <linux/pci.h>
 17 #include <linux/kdev_t.h>
 18 #include <linux/delay.h>
 19 #include <linux/seq_file.h>
 20 #include <linux/of_platform.h>
 21 
 22 #include <asm/time.h>
 23 #include <asm/machdep.h>
 24 #include <asm/pci-bridge.h>
 25 #include <asm/mpic.h>
 26 #include <mm/mmu_decl.h>
 27 #include <asm/udbg.h>
 28 
 29 #include <sysdev/fsl_soc.h>
 30 #include <sysdev/fsl_pci.h>
 31 
 32 #ifdef CONFIG_CPM2
 33 #include <asm/cpm2.h>
 34 #include <sysdev/cpm2_pic.h>
 35 #endif
 36 
 37 #include "mpc85xx.h"
 38 
 39 static void __init mpc85xx_ads_pic_init(void)
 40 {
 41         struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
 42                         0, 256, " OpenPIC  ");
 43         BUG_ON(mpic == NULL);
 44         mpic_init(mpic);
 45 
 46         mpc85xx_cpm2_pic_init();
 47 }
 48 
 49 /*
 50  * Setup the architecture
 51  */
 52 #ifdef CONFIG_CPM2
 53 struct cpm_pin {
 54         int port, pin, flags;
 55 };
 56 
 57 static const struct cpm_pin mpc8560_ads_pins[] = {
 58         /* SCC1 */
 59         {3, 29, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 60         {3, 30, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 61         {3, 31, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 62 
 63         /* SCC2 */
 64         {2, 12, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 65         {2, 13, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 66         {3, 26, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 67         {3, 27, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 68         {3, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 69 
 70         /* FCC2 */
 71         {1, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 72         {1, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 73         {1, 20, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 74         {1, 21, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 75         {1, 22, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 76         {1, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 77         {1, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 78         {1, 25, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 79         {1, 26, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 80         {1, 27, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 81         {1, 28, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 82         {1, 29, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY},
 83         {1, 30, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 84         {1, 31, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 85         {2, 18, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK14 */
 86         {2, 19, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK13 */
 87 
 88         /* FCC3 */
 89         {1, 4, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 90         {1, 5, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 91         {1, 6, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 92         {1, 8, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 93         {1, 9, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 94         {1, 10, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 95         {1, 11, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 96         {1, 12, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 97         {1, 13, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
 98         {1, 14, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
 99         {1, 15, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
100         {1, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
101         {1, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY},
102         {2, 16, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK16 */
103         {2, 17, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* CLK15 */
104         {2, 27, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY},
105 };
106 
107 static void __init init_ioports(void)
108 {
109         int i;
110 
111         for (i = 0; i < ARRAY_SIZE(mpc8560_ads_pins); i++) {
112                 const struct cpm_pin *pin = &mpc8560_ads_pins[i];
113                 cpm2_set_pin(pin->port, pin->pin, pin->flags);
114         }
115 
116         cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_RX);
117         cpm2_clk_setup(CPM_CLK_SCC1, CPM_BRG1, CPM_CLK_TX);
118         cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_RX);
119         cpm2_clk_setup(CPM_CLK_SCC2, CPM_BRG2, CPM_CLK_TX);
120         cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK13, CPM_CLK_RX);
121         cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK14, CPM_CLK_TX);
122         cpm2_clk_setup(CPM_CLK_FCC3, CPM_CLK15, CPM_CLK_RX);
123         cpm2_clk_setup(CPM_CLK_FCC3, CPM_CLK16, CPM_CLK_TX);
124 }
125 #endif
126 
127 static void __init mpc85xx_ads_setup_arch(void)
128 {
129         if (ppc_md.progress)
130                 ppc_md.progress("mpc85xx_ads_setup_arch()", 0);
131 
132 #ifdef CONFIG_CPM2
133         cpm2_reset();
134         init_ioports();
135 #endif
136 
137         fsl_pci_assign_primary();
138 }
139 
140 static void mpc85xx_ads_show_cpuinfo(struct seq_file *m)
141 {
142         uint pvid, svid, phid1;
143 
144         pvid = mfspr(SPRN_PVR);
145         svid = mfspr(SPRN_SVR);
146 
147         seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
148         seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
149         seq_printf(m, "SVR\t\t: 0x%x\n", svid);
150 
151         /* Display cpu Pll setting */
152         phid1 = mfspr(SPRN_HID1);
153         seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
154 }
155 
156 machine_arch_initcall(mpc85xx_ads, mpc85xx_common_publish_devices);
157 
158 /*
159  * Called very early, device-tree isn't unflattened
160  */
161 static int __init mpc85xx_ads_probe(void)
162 {
163         unsigned long root = of_get_flat_dt_root();
164 
165         return of_flat_dt_is_compatible(root, "MPC85xxADS");
166 }
167 
168 define_machine(mpc85xx_ads) {
169         .name                   = "MPC85xx ADS",
170         .probe                  = mpc85xx_ads_probe,
171         .setup_arch             = mpc85xx_ads_setup_arch,
172         .init_IRQ               = mpc85xx_ads_pic_init,
173         .show_cpuinfo           = mpc85xx_ads_show_cpuinfo,
174         .get_irq                = mpic_get_irq,
175         .restart                = fsl_rstcr_restart,
176         .calibrate_decr         = generic_calibrate_decr,
177         .progress               = udbg_progress,
178 };
179 

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