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152 lines
3.6 KiB
152 lines
3.6 KiB
/* |
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* Platform setup for the MPC8xx based boards from TQM. |
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* |
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* Heiko Schocher <[email protected]> |
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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 <[email protected]> |
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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 <[email protected]> |
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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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return of_machine_is_compatible("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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