Uwe Kleine-König | 5886269 | 2007-05-09 07:51:49 +0200 | [diff] [blame] | 1 | /*arch/powerpc/platforms/8xx/mpc86xads_setup.c |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 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 | * |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 9 | * Heavily modified by Scott Wood <scottwood@freescale.com> |
| 10 | * Copyright 2007 Freescale Semiconductor, Inc. |
| 11 | * |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 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> |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 18 | #include <linux/of_platform.h> |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 19 | |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 20 | #include <asm/io.h> |
| 21 | #include <asm/machdep.h> |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 22 | #include <asm/system.h> |
| 23 | #include <asm/time.h> |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 24 | #include <asm/mpc8xx.h> |
| 25 | #include <asm/8xx_immap.h> |
| 26 | #include <asm/commproc.h> |
| 27 | #include <asm/fs_pd.h> |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 28 | #include <asm/udbg.h> |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 29 | |
Scott Wood | fb533d0 | 2007-09-14 14:22:36 -0500 | [diff] [blame] | 30 | #include <sysdev/commproc.h> |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 31 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 32 | #include "mpc86xads.h" |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 33 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 34 | struct cpm_pin { |
| 35 | int port, pin, flags; |
| 36 | }; |
| 37 | |
| 38 | static struct cpm_pin mpc866ads_pins[] = { |
| 39 | /* SMC1 */ |
| 40 | {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ |
| 41 | {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ |
| 42 | |
| 43 | /* SMC2 */ |
| 44 | {CPM_PORTB, 21, CPM_PIN_INPUT}, /* RX */ |
| 45 | {CPM_PORTB, 20, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ |
| 46 | |
| 47 | /* SCC1 */ |
| 48 | {CPM_PORTA, 6, CPM_PIN_INPUT}, /* CLK1 */ |
| 49 | {CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */ |
| 50 | {CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */ |
| 51 | {CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */ |
| 52 | {CPM_PORTB, 19, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */ |
| 53 | {CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* RENA */ |
| 54 | {CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CLSN */ |
| 55 | |
| 56 | /* MII */ |
| 57 | {CPM_PORTD, 3, CPM_PIN_OUTPUT}, |
| 58 | {CPM_PORTD, 4, CPM_PIN_OUTPUT}, |
| 59 | {CPM_PORTD, 5, CPM_PIN_OUTPUT}, |
| 60 | {CPM_PORTD, 6, CPM_PIN_OUTPUT}, |
| 61 | {CPM_PORTD, 7, CPM_PIN_OUTPUT}, |
| 62 | {CPM_PORTD, 8, CPM_PIN_OUTPUT}, |
| 63 | {CPM_PORTD, 9, CPM_PIN_OUTPUT}, |
| 64 | {CPM_PORTD, 10, CPM_PIN_OUTPUT}, |
| 65 | {CPM_PORTD, 11, CPM_PIN_OUTPUT}, |
| 66 | {CPM_PORTD, 12, CPM_PIN_OUTPUT}, |
| 67 | {CPM_PORTD, 13, CPM_PIN_OUTPUT}, |
| 68 | {CPM_PORTD, 14, CPM_PIN_OUTPUT}, |
| 69 | {CPM_PORTD, 15, CPM_PIN_OUTPUT}, |
| 70 | }; |
| 71 | |
| 72 | static void __init init_ioports(void) |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 73 | { |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 74 | int i; |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 75 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 76 | for (i = 0; i < ARRAY_SIZE(mpc866ads_pins); i++) { |
| 77 | struct cpm_pin *pin = &mpc866ads_pins[i]; |
| 78 | cpm1_set_pin(pin->port, pin->pin, pin->flags); |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 79 | } |
| 80 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 81 | cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); |
| 82 | cpm1_clk_setup(CPM_CLK_SMC2, CPM_BRG2, CPM_CLK_RTX); |
| 83 | cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK1, CPM_CLK_TX); |
| 84 | cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK2, CPM_CLK_RX); |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 85 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 86 | /* Set FEC1 and FEC2 to MII mode */ |
| 87 | clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180); |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | static void __init mpc86xads_setup_arch(void) |
| 91 | { |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 92 | struct device_node *np; |
| 93 | u32 __iomem *bcsr_io; |
| 94 | |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 95 | cpm_reset(); |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 96 | init_ioports(); |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 97 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 98 | np = of_find_compatible_node(NULL, NULL, "fsl,mpc866ads-bcsr"); |
| 99 | if (!np) { |
| 100 | printk(KERN_CRIT "Could not find fsl,mpc866ads-bcsr node\n"); |
| 101 | return; |
| 102 | } |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 103 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 104 | bcsr_io = of_iomap(np, 0); |
| 105 | of_node_put(np); |
| 106 | |
| 107 | if (bcsr_io == NULL) { |
| 108 | printk(KERN_CRIT "Could not remap BCSR\n"); |
| 109 | return; |
| 110 | } |
| 111 | |
| 112 | clrbits32(bcsr_io, BCSR1_RS232EN_1 | BCSR1_RS232EN_2 | BCSR1_ETHEN); |
| 113 | iounmap(bcsr_io); |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | static int __init mpc86xads_probe(void) |
| 117 | { |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 118 | unsigned long root = of_get_flat_dt_root(); |
| 119 | return of_flat_dt_is_compatible(root, "fsl,mpc866ads"); |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 120 | } |
| 121 | |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 122 | static struct of_device_id __initdata of_bus_ids[] = { |
| 123 | { .name = "soc", }, |
| 124 | { .name = "cpm", }, |
| 125 | { .name = "localbus", }, |
| 126 | {}, |
| 127 | }; |
| 128 | |
| 129 | static int __init declare_of_platform_devices(void) |
| 130 | { |
Grant Likely | 6869e4a | 2008-01-21 11:58:06 -0700 | [diff] [blame] | 131 | of_platform_bus_probe(NULL, of_bus_ids, NULL); |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 132 | |
| 133 | return 0; |
| 134 | } |
Grant Likely | 6869e4a | 2008-01-21 11:58:06 -0700 | [diff] [blame] | 135 | machine_device_initcall(mpc86x_ads, declare_of_platform_devices); |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 136 | |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 137 | define_machine(mpc86x_ads) { |
| 138 | .name = "MPC86x ADS", |
| 139 | .probe = mpc86xads_probe, |
| 140 | .setup_arch = mpc86xads_setup_arch, |
Jochen Friedrich | d0a02a0 | 2008-01-24 16:17:32 +0100 | [diff] [blame^] | 141 | .init_IRQ = mpc8xx_pics_init, |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 142 | .get_irq = mpc8xx_get_irq, |
| 143 | .restart = mpc8xx_restart, |
| 144 | .calibrate_decr = mpc8xx_calibrate_decr, |
| 145 | .set_rtc_time = mpc8xx_set_rtc_time, |
| 146 | .get_rtc_time = mpc8xx_get_rtc_time, |
Scott Wood | 0b5cf10 | 2007-11-25 13:09:31 +0300 | [diff] [blame] | 147 | .progress = udbg_progress, |
Vitaly Bordug | 29f1530 | 2007-01-24 22:42:10 +0300 | [diff] [blame] | 148 | }; |