diff options
Diffstat (limited to 'kernel/arch/powerpc/platforms/8xx/adder875.c')
| -rw-r--r-- | kernel/arch/powerpc/platforms/8xx/adder875.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/platforms/8xx/adder875.c b/kernel/arch/powerpc/platforms/8xx/adder875.c new file mode 100644 index 000000000..61cae4c1e --- /dev/null +++ b/kernel/arch/powerpc/platforms/8xx/adder875.c @@ -0,0 +1,118 @@ +/* Analogue & Micro Adder MPC875 board support + * + * Author: Scott Wood <scottwood@freescale.com> + * + * Copyright (c) 2007 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + */ + +#include <linux/init.h> +#include <linux/fs_enet_pd.h> +#include <linux/of_platform.h> + +#include <asm/time.h> +#include <asm/machdep.h> +#include <asm/cpm1.h> +#include <asm/fs_pd.h> +#include <asm/udbg.h> +#include <asm/prom.h> + +#include "mpc8xx.h" + +struct cpm_pin { + int port, pin, flags; +}; + +static __initdata struct cpm_pin adder875_pins[] = { + /* SMC1 */ + {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ + {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ + + /* MII1 */ + {CPM_PORTA, 0, CPM_PIN_INPUT}, + {CPM_PORTA, 1, CPM_PIN_INPUT}, + {CPM_PORTA, 2, CPM_PIN_INPUT}, + {CPM_PORTA, 3, CPM_PIN_INPUT}, + {CPM_PORTA, 4, CPM_PIN_OUTPUT}, + {CPM_PORTA, 10, CPM_PIN_OUTPUT}, + {CPM_PORTA, 11, CPM_PIN_OUTPUT}, + {CPM_PORTB, 19, CPM_PIN_INPUT}, + {CPM_PORTB, 31, CPM_PIN_INPUT}, + {CPM_PORTC, 12, CPM_PIN_INPUT}, + {CPM_PORTC, 13, CPM_PIN_INPUT}, + {CPM_PORTE, 30, CPM_PIN_OUTPUT}, + {CPM_PORTE, 31, CPM_PIN_OUTPUT}, + + /* MII2 */ + {CPM_PORTE, 14, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {CPM_PORTE, 15, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {CPM_PORTE, 16, CPM_PIN_OUTPUT}, + {CPM_PORTE, 17, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {CPM_PORTE, 18, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {CPM_PORTE, 19, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {CPM_PORTE, 20, CPM_PIN_OUTPUT | CPM_PIN_SECONDARY}, + {CPM_PORTE, 21, CPM_PIN_OUTPUT}, + {CPM_PORTE, 22, CPM_PIN_OUTPUT}, + {CPM_PORTE, 23, CPM_PIN_OUTPUT}, + {CPM_PORTE, 24, CPM_PIN_OUTPUT}, + {CPM_PORTE, 25, CPM_PIN_OUTPUT}, + {CPM_PORTE, 26, CPM_PIN_OUTPUT}, + {CPM_PORTE, 27, CPM_PIN_OUTPUT}, + {CPM_PORTE, 28, CPM_PIN_OUTPUT}, + {CPM_PORTE, 29, CPM_PIN_OUTPUT}, +}; + +static void __init init_ioports(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(adder875_pins); i++) { + const struct cpm_pin *pin = &adder875_pins[i]; + cpm1_set_pin(pin->port, pin->pin, pin->flags); + } + + cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); + + /* Set FEC1 and FEC2 to MII mode */ + clrbits32(&mpc8xx_immr->im_cpm.cp_cptr, 0x00000180); +} + +static void __init adder875_setup(void) +{ + cpm_reset(); + init_ioports(); +} + +static int __init adder875_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + return of_flat_dt_is_compatible(root, "analogue-and-micro,adder875"); +} + +static const struct of_device_id of_bus_ids[] __initconst = { + { .compatible = "simple-bus", }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + of_platform_bus_probe(NULL, of_bus_ids, NULL); + return 0; +} +machine_device_initcall(adder875, declare_of_platform_devices); + +define_machine(adder875) { + .name = "Adder MPC875", + .probe = adder875_probe, + .setup_arch = adder875_setup, + .init_IRQ = mpc8xx_pics_init, + .get_irq = mpc8xx_get_irq, + .restart = mpc8xx_restart, + .calibrate_decr = generic_calibrate_decr, + .set_rtc_time = mpc8xx_set_rtc_time, + .get_rtc_time = mpc8xx_get_rtc_time, + .progress = udbg_progress, +}; |