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150 lines
3.8 KiB
150 lines
3.8 KiB
/*arch/powerpc/platforms/8xx/mpc86xads_setup.c |
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* |
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* Platform setup for the Freescale mpc86xads board |
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* |
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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/of_address.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/io.h> |
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#include <asm/machdep.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 "mpc86xads.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 mpc866ads_pins[] = { |
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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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/* SMC2 */ |
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{CPM_PORTB, 21, CPM_PIN_INPUT}, /* RX */ |
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{CPM_PORTB, 20, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ |
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/* SCC1 */ |
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{CPM_PORTA, 6, 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_PORTB, 19, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */ |
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{CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* RENA */ |
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{CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO}, /* CLSN */ |
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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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/* I2C */ |
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{CPM_PORTB, 26, CPM_PIN_INPUT | CPM_PIN_OPENDRAIN}, |
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{CPM_PORTB, 27, CPM_PIN_INPUT | CPM_PIN_OPENDRAIN}, |
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}; |
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static void __init init_ioports(void) |
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{ |
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int i; |
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for (i = 0; i < ARRAY_SIZE(mpc866ads_pins); i++) { |
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struct cpm_pin *pin = &mpc866ads_pins[i]; |
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cpm1_set_pin(pin->port, pin->pin, pin->flags); |
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} |
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cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); |
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cpm1_clk_setup(CPM_CLK_SMC2, CPM_BRG2, CPM_CLK_RTX); |
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cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK1, CPM_CLK_TX); |
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cpm1_clk_setup(CPM_CLK_SCC1, CPM_CLK2, CPM_CLK_RX); |
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/* Set FEC1 and FEC2 to MII mode */ |
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clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180); |
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} |
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static void __init mpc86xads_setup_arch(void) |
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{ |
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struct device_node *np; |
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u32 __iomem *bcsr_io; |
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cpm_reset(); |
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init_ioports(); |
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np = of_find_compatible_node(NULL, NULL, "fsl,mpc866ads-bcsr"); |
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if (!np) { |
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printk(KERN_CRIT "Could not find fsl,mpc866ads-bcsr node\n"); |
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return; |
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} |
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bcsr_io = of_iomap(np, 0); |
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of_node_put(np); |
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if (bcsr_io == NULL) { |
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printk(KERN_CRIT "Could not remap BCSR\n"); |
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return; |
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} |
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clrbits32(bcsr_io, BCSR1_RS232EN_1 | BCSR1_RS232EN_2 | BCSR1_ETHEN); |
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iounmap(bcsr_io); |
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} |
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static int __init mpc86xads_probe(void) |
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{ |
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return of_machine_is_compatible("fsl,mpc866ads"); |
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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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{}, |
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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(mpc86x_ads, declare_of_platform_devices); |
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define_machine(mpc86x_ads) { |
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.name = "MPC86x ADS", |
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.probe = mpc86xads_probe, |
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.setup_arch = mpc86xads_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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