/*arch/powerpc/platforms/8xx/mpc86xads_setup.c * * Platform setup for the Freescale mpc86xads board * * Vitaly Bordug <vbordug@ru.mvista.com> * * Copyright 2005 MontaVista Software Inc. * * Heavily modified by Scott Wood <scottwood@freescale.com> * Copyright 2007 Freescale Semiconductor, Inc. * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. */ #include <linux/init.h> #include <linux/of_platform.h> #include <asm/io.h> #include <asm/machdep.h> #include <asm/system.h> #include <asm/time.h> #include <asm/8xx_immap.h> #include <asm/cpm1.h> #include <asm/fs_pd.h> #include <asm/udbg.h> #include "mpc86xads.h" #include "mpc8xx.h" struct cpm_pin { int port, pin, flags; }; static struct cpm_pin mpc866ads_pins[] = { /* SMC1 */ {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ /* SMC2 */ {CPM_PORTB, 21, CPM_PIN_INPUT}, /* RX */ {CPM_PORTB, 20, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ /* SCC1 */ {CPM_PORTA, 6, CPM_PIN_INPUT}, /* CLK1 */ {CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */ {CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */ {CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */ {CPM_PORTB, 19, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */ {CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* RENA */ {CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CLSN */ /* MII */ {CPM_PORTD, 3, CPM_PIN_OUTPUT}, {CPM_PORTD, 4, CPM_PIN_OUTPUT}, {CPM_PORTD, 5, CPM_PIN_OUTPUT}, {CPM_PORTD, 6, CPM_PIN_OUTPUT}, {CPM_PORTD, 7, CPM_PIN_OUTPUT}, {CPM_PORTD, 8, CPM_PIN_OUTPUT}, {CPM_PORTD, 9, CPM_PIN_OUTPUT}, {CPM_PORTD, 10, CPM_PIN_OUTPUT}, {CPM_PORTD, 11, CPM_PIN_OUTPUT}, {CPM_PORTD, 12, CPM_PIN_OUTPUT}, {CPM_PORTD, 13, CPM_PIN_OUTPUT}, {CPM_PORTD, 14, CPM_PIN_OUTPUT}, {CPM_PORTD, 15, CPM_PIN_OUTPUT}, /* I2C */ {CPM_PORTB, 26, CPM_PIN_INPUT | CPM_PIN_OPENDRAIN}, {CPM_PORTB, 27, CPM_PIN_INPUT | CPM_PIN_OPENDRAIN}, }; static void __init init_ioports(void) { int i; for (i = 0; i < ARRAY_SIZE(mpc866ads_pins); i++) { struct cpm_pin *pin = &mpc866ads_pins[i]; cpm1_set_pin(pin->port, pin->pin, pin->flags); } cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); cpm1_clk_setup(CPM_CLK_SMC2, CPM_BRG2, CPM_CLK_RTX); cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK1, CPM_CLK_TX); cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK2, CPM_CLK_RX); /* Set FEC1 and FEC2 to MII mode */ clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180); } static void __init mpc86xads_setup_arch(void) { struct device_node *np; u32 __iomem *bcsr_io; cpm_reset(); init_ioports(); np = of_find_compatible_node(NULL, NULL, "fsl,mpc866ads-bcsr"); if (!np) { printk(KERN_CRIT "Could not find fsl,mpc866ads-bcsr node\n"); return; } bcsr_io = of_iomap(np, 0); of_node_put(np); if (bcsr_io == NULL) { printk(KERN_CRIT "Could not remap BCSR\n"); return; } clrbits32(bcsr_io, BCSR1_RS232EN_1 | BCSR1_RS232EN_2 | BCSR1_ETHEN); iounmap(bcsr_io); } static int __init mpc86xads_probe(void) { unsigned long root = of_get_flat_dt_root(); return of_flat_dt_is_compatible(root, "fsl,mpc866ads"); } static struct of_device_id __initdata of_bus_ids[] = { { .name = "soc", }, { .name = "cpm", }, { .name = "localbus", }, {}, }; static int __init declare_of_platform_devices(void) { of_platform_bus_probe(NULL, of_bus_ids, NULL); return 0; } machine_device_initcall(mpc86x_ads, declare_of_platform_devices); define_machine(mpc86x_ads) { .name = "MPC86x ADS", .probe = mpc86xads_probe, .setup_arch = mpc86xads_setup_arch, .init_IRQ = mpc8xx_pics_init, .get_irq = mpc8xx_get_irq, .restart = mpc8xx_restart, .calibrate_decr = mpc8xx_calibrate_decr, .set_rtc_time = mpc8xx_set_rtc_time, .get_rtc_time = mpc8xx_get_rtc_time, .progress = udbg_progress, };