155 lines
3.7 KiB
C
155 lines
3.7 KiB
C
/*
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* Platform setup for the MPC8xx based boards from TQM.
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*
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* Heiko Schocher <hs@denx.de>
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* Copyright 2010 DENX Software Engineering GmbH
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*
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* based on:
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* Vitaly Bordug <vbordug@ru.mvista.com>
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*
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* Copyright 2005 MontaVista Software Inc.
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*
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* Heavily modified by Scott Wood <scottwood@freescale.com>
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* Copyright 2007 Freescale Semiconductor, Inc.
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#include <linux/init.h>
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#include <linux/param.h>
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#include <linux/string.h>
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#include <linux/ioport.h>
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#include <linux/device.h>
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#include <linux/delay.h>
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#include <linux/fs_enet_pd.h>
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#include <linux/fs_uart_pd.h>
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#include <linux/fsl_devices.h>
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#include <linux/mii.h>
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#include <linux/of_fdt.h>
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#include <linux/of_platform.h>
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#include <asm/delay.h>
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#include <asm/io.h>
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#include <asm/machdep.h>
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#include <asm/page.h>
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#include <asm/processor.h>
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#include <asm/time.h>
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#include <asm/8xx_immap.h>
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#include <asm/cpm1.h>
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#include <asm/fs_pd.h>
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#include <asm/udbg.h>
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#include "mpc8xx.h"
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struct cpm_pin {
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int port, pin, flags;
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};
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static struct cpm_pin tqm8xx_pins[] __initdata = {
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/* SMC1 */
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{CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
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{CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
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/* SCC1 */
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{CPM_PORTA, 5, CPM_PIN_INPUT}, /* CLK1 */
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{CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */
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{CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */
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{CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */
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{CPM_PORTC, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */
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{CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO},
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{CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO},
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};
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static struct cpm_pin tqm8xx_fec_pins[] __initdata = {
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/* MII */
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{CPM_PORTD, 3, CPM_PIN_OUTPUT},
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{CPM_PORTD, 4, CPM_PIN_OUTPUT},
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{CPM_PORTD, 5, CPM_PIN_OUTPUT},
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{CPM_PORTD, 6, CPM_PIN_OUTPUT},
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{CPM_PORTD, 7, CPM_PIN_OUTPUT},
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{CPM_PORTD, 8, CPM_PIN_OUTPUT},
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{CPM_PORTD, 9, CPM_PIN_OUTPUT},
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{CPM_PORTD, 10, CPM_PIN_OUTPUT},
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{CPM_PORTD, 11, CPM_PIN_OUTPUT},
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{CPM_PORTD, 12, CPM_PIN_OUTPUT},
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{CPM_PORTD, 13, CPM_PIN_OUTPUT},
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{CPM_PORTD, 14, CPM_PIN_OUTPUT},
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{CPM_PORTD, 15, CPM_PIN_OUTPUT},
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};
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static void __init init_pins(int n, struct cpm_pin *pin)
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{
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int i;
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for (i = 0; i < n; i++) {
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cpm1_set_pin(pin->port, pin->pin, pin->flags);
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pin++;
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}
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}
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static void __init init_ioports(void)
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{
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struct device_node *dnode;
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struct property *prop;
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int len;
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init_pins(ARRAY_SIZE(tqm8xx_pins), &tqm8xx_pins[0]);
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cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);
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dnode = of_find_node_by_name(NULL, "aliases");
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if (dnode == NULL)
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return;
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prop = of_find_property(dnode, "ethernet1", &len);
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if (prop == NULL)
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return;
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/* init FEC pins */
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init_pins(ARRAY_SIZE(tqm8xx_fec_pins), &tqm8xx_fec_pins[0]);
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}
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static void __init tqm8xx_setup_arch(void)
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{
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cpm_reset();
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init_ioports();
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}
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static int __init tqm8xx_probe(void)
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{
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unsigned long node = of_get_flat_dt_root();
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return of_flat_dt_is_compatible(node, "tqc,tqm8xx");
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}
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static const struct of_device_id of_bus_ids[] __initconst = {
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{ .name = "soc", },
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{ .name = "cpm", },
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{ .name = "localbus", },
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{ .compatible = "simple-bus" },
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{},
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};
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static int __init declare_of_platform_devices(void)
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{
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of_platform_bus_probe(NULL, of_bus_ids, NULL);
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return 0;
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}
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machine_device_initcall(tqm8xx, declare_of_platform_devices);
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define_machine(tqm8xx) {
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.name = "TQM8xx",
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.probe = tqm8xx_probe,
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.setup_arch = tqm8xx_setup_arch,
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.init_IRQ = mpc8xx_pics_init,
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.get_irq = mpc8xx_get_irq,
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.restart = mpc8xx_restart,
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.calibrate_decr = mpc8xx_calibrate_decr,
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.set_rtc_time = mpc8xx_set_rtc_time,
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.get_rtc_time = mpc8xx_get_rtc_time,
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.progress = udbg_progress,
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};
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