diff options
Diffstat (limited to 'target/linux/mpc83xx/patches-2.6.36/017-platforms_83xx_rbppc.patch')
| -rw-r--r-- | target/linux/mpc83xx/patches-2.6.36/017-platforms_83xx_rbppc.patch | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/target/linux/mpc83xx/patches-2.6.36/017-platforms_83xx_rbppc.patch b/target/linux/mpc83xx/patches-2.6.36/017-platforms_83xx_rbppc.patch new file mode 100644 index 000000000..67cc12541 --- /dev/null +++ b/target/linux/mpc83xx/patches-2.6.36/017-platforms_83xx_rbppc.patch @@ -0,0 +1,319 @@ +--- /dev/null ++++ b/arch/powerpc/platforms/83xx/rbppc.c +@@ -0,0 +1,316 @@ ++/* ++ * Copyright (C) 2008-2009 Noah Fontes <nfontes@transtruct.org> ++ * Copyright (C) 2009 Michael Guntsche <mike@it-loops.com> ++ * Copyright (C) Mikrotik 2007 ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ */ ++ ++#include <linux/delay.h> ++#include <linux/root_dev.h> ++#include <linux/initrd.h> ++#include <linux/interrupt.h> ++#include <linux/of_platform.h> ++#include <linux/of_device.h> ++#include <linux/of_platform.h> ++#include <asm/time.h> ++#include <asm/ipic.h> ++#include <asm/udbg.h> ++#include <asm/qe.h> ++#include <asm/qe_ic.h> ++#include <sysdev/fsl_soc.h> ++#include <sysdev/fsl_pci.h> ++#include "mpc83xx.h" ++ ++#define SYSCTL 0x100 ++#define SICRL 0x014 ++ ++#define GTCFR2 0x04 ++#define GTMDR4 0x22 ++#define GTRFR4 0x26 ++#define GTCNR4 0x2e ++#define GTVER4 0x36 ++#define GTPSR4 0x3e ++ ++#define GTCFR_BCM 0x40 ++#define GTCFR_STP4 0x20 ++#define GTCFR_RST4 0x10 ++#define GTCFR_STP3 0x02 ++#define GTCFR_RST3 0x01 ++ ++#define GTMDR_ORI 0x10 ++#define GTMDR_FRR 0x08 ++#define GTMDR_ICLK16 0x04 ++ ++extern int par_io_data_set(u8 port, u8 pin, u8 val); ++extern int par_io_config_pin(u8 port, u8 pin, int dir, int open_drain, ++ int assignment, int has_irq); ++ ++static unsigned timer_freq; ++static void *gtm; ++ ++static int beeper_irq; ++static unsigned beeper_gpio_pin[2]; ++ ++irqreturn_t rbppc_timer_irq(int irq, void *ptr) ++{ ++ static int toggle = 0; ++ ++ par_io_data_set(beeper_gpio_pin[0], beeper_gpio_pin[1], toggle); ++ toggle = !toggle; ++ ++ /* ack interrupt */ ++ out_be16(gtm + GTVER4, 3); ++ ++ return IRQ_HANDLED; ++} ++ ++void rbppc_beep(unsigned freq) ++{ ++ unsigned gtmdr; ++ ++ if (freq > 5000) freq = 5000; ++ ++ if (!gtm) ++ return; ++ if (!freq) { ++ out_8(gtm + GTCFR2, GTCFR_STP4 | GTCFR_STP3); ++ return; ++ } ++ ++ out_8(gtm + GTCFR2, GTCFR_RST4 | GTCFR_STP3); ++ out_be16(gtm + GTPSR4, 255); ++ gtmdr = GTMDR_FRR | GTMDR_ICLK16; ++ if (beeper_irq != NO_IRQ) gtmdr |= GTMDR_ORI; ++ out_be16(gtm + GTMDR4, gtmdr); ++ out_be16(gtm + GTVER4, 3); ++ ++ out_be16(gtm + GTRFR4, timer_freq / 16 / 256 / freq / 2); ++ out_be16(gtm + GTCNR4, 0); ++} ++EXPORT_SYMBOL(rbppc_beep); ++ ++static void __init rbppc_setup_arch(void) ++{ ++ struct device_node *np; ++ ++ np = of_find_node_by_type(NULL, "cpu"); ++ if (np) { ++ const unsigned *fp = of_get_property(np, "clock-frequency", NULL); ++ loops_per_jiffy = fp ? *fp / HZ : 0; ++ ++ of_node_put(np); ++ } ++ ++ np = of_find_node_by_name(NULL, "serial"); ++ if (np) { ++ timer_freq = ++ *(unsigned *) of_get_property(np, "clock-frequency", NULL); ++ of_node_put(np); ++ } ++ ++#ifdef CONFIG_PCI ++ np = of_find_node_by_type(NULL, "pci"); ++ if (np) { ++ mpc83xx_add_bridge(np); ++ } ++#endif ++ ++#ifdef CONFIG_QUICC_ENGINE ++ np = of_find_node_by_name(np, "par_io"); ++ if (np) { ++ qe_reset(); ++ par_io_init(np); ++ of_node_put(np); ++ ++ np = NULL; ++ while (1) { ++ np = of_find_node_by_name(np, "ucc"); ++ if (!np) break; ++ ++ par_io_of_config(np); ++ } ++ } ++#endif ++ ++} ++ ++void __init rbppc_init_IRQ(void) ++{ ++ struct device_node *np; ++ ++ np = of_find_node_by_type(NULL, "ipic"); ++ if (np) { ++ ipic_init(np, 0); ++ ipic_set_default_priority(); ++ of_node_put(np); ++ } ++ ++#ifdef CONFIG_QUICC_ENGINE ++ np = of_find_node_by_type(NULL, "qeic"); ++ if (np) { ++ qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic); ++ of_node_put(np); ++ } ++#endif ++} ++ ++static int __init rbppc_probe(void) ++{ ++ char *model; ++ ++ model = of_get_flat_dt_prop(of_get_flat_dt_root(), "model", NULL); ++ ++ if (!model) ++ return 0; ++ ++ if (strcmp(model, "RB600") == 0) ++ return 1; ++ ++ return 0; ++} ++ ++static void __init rbppc_beeper_init(struct device_node *beeper) ++{ ++ struct resource res; ++ struct device_node *gpio; ++ const unsigned *pin; ++ const unsigned *gpio_id; ++ ++ if (of_address_to_resource(beeper, 0, &res)) { ++ printk(KERN_ERR "rbppc_beeper_init(%s): Beeper error: No region specified\n", beeper->full_name); ++ return; ++ } ++ ++ pin = of_get_property(beeper, "gpio", NULL); ++ if (pin) { ++ gpio = of_find_node_by_phandle(pin[0]); ++ ++ if (!gpio) { ++ printk(KERN_ERR "rbppc_beeper_init(%s): Beeper error: GPIO handle %x not found\n", beeper->full_name, pin[0]); ++ return; ++ } ++ ++ gpio_id = of_get_property(gpio, "device-id", NULL); ++ if (!gpio_id) { ++ printk(KERN_ERR "rbppc_beeper_init(%s): Beeper error: No device-id specified in GPIO\n", beeper->full_name); ++ return; ++ } ++ ++ beeper_gpio_pin[0] = *gpio_id; ++ beeper_gpio_pin[1] = pin[1]; ++ ++ par_io_config_pin(*gpio_id, pin[1], 1, 0, 0, 0); ++ } else { ++ void *sysctl; ++ ++ sysctl = ioremap_nocache(get_immrbase() + SYSCTL, 0x100); ++ out_be32(sysctl + SICRL, ++ in_be32(sysctl + SICRL) | (1 << (31 - 19))); ++ iounmap(sysctl); ++ } ++ ++ gtm = ioremap_nocache(res.start, res.end - res.start + 1); ++ ++ beeper_irq = irq_of_parse_and_map(beeper, 0); ++ if (beeper_irq != NO_IRQ) { ++ int e = request_irq(beeper_irq, rbppc_timer_irq, 0, "beeper", NULL); ++ if (e) { ++ printk(KERN_ERR "rbppc_beeper_init(%s): Request of beeper irq failed!\n", beeper->full_name); ++ } ++ } ++} ++ ++#define SBIT(x) (0x80000000 >> (x)) ++#define DBIT(x, y) ((y) << (32 - (((x % 16) + 1) * 2))) ++ ++#define SICRL_RB600(x) ((x) + (0x114 >> 2)) ++#define GPIO_DIR_RB600(x) ((x) + (0xc00 >> 2)) ++#define GPIO_DATA_RB600(x) ((x) + (0xc08 >> 2)) ++ ++static void rbppc_restart(char *cmd) ++{ ++ __be32 __iomem *reg; ++ ++ reg = ioremap(get_immrbase(), 0x1000); ++ local_irq_disable(); ++ out_be32(SICRL_RB600(reg), in_be32(SICRL_RB600(reg)) & ~0x00800000); ++ out_be32(GPIO_DIR_RB600(reg), in_be32(GPIO_DIR_RB600(reg)) | SBIT(2)); ++ out_be32(GPIO_DATA_RB600(reg), in_be32(GPIO_DATA_RB600(reg)) & ~SBIT(2)); ++ ++ while (1); ++} ++ ++static void rbppc_halt(void) ++{ ++ while (1); ++} ++ ++static struct of_device_id rbppc_ids[] = { ++ { .type = "soc", }, ++ { .compatible = "soc", }, ++ { .compatible = "simple-bus", }, ++ { .compatible = "gianfar", }, ++ { }, ++}; ++ ++static int __init rbppc_declare_of_platform_devices(void) ++{ ++ struct device_node *np; ++ unsigned idx; ++ ++ of_platform_bus_probe(NULL, rbppc_ids, NULL); ++ ++ np = of_find_node_by_type(NULL, "mdio"); ++ if (np) { ++ unsigned len; ++ unsigned *res; ++ const unsigned *eres; ++ struct device_node *ep; ++ ++ ep = of_find_compatible_node(NULL, "network", "ucc_geth"); ++ if (ep) { ++ eres = of_get_property(ep, "reg", &len); ++ res = (unsigned *) of_get_property(np, "reg", &len); ++ if (res && eres) { ++ res[0] = eres[0] + 0x120; ++ } ++ } ++ } ++ ++ np = of_find_node_by_name(NULL, "nand"); ++ if (np) { ++ of_platform_device_create(np, "nand", NULL); ++ } ++ ++ idx = 0; ++ for_each_node_by_type(np, "rb,cf") { ++ char dev_name[12]; ++ snprintf(dev_name, sizeof(dev_name), "cf.%u", idx); ++ of_platform_device_create(np, dev_name, NULL); ++ ++idx; ++ } ++ ++ np = of_find_node_by_name(NULL, "beeper"); ++ if (np) { ++ rbppc_beeper_init(np); ++ } ++ ++ return 0; ++} ++device_initcall(rbppc_declare_of_platform_devices); ++ ++define_machine(rb600) { ++ .name = "MikroTik RouterBOARD 600 series", ++ .probe = rbppc_probe, ++ .setup_arch = rbppc_setup_arch, ++ .init_IRQ = rbppc_init_IRQ, ++ .get_irq = ipic_get_irq, ++ .restart = rbppc_restart, ++ .halt = rbppc_halt, ++ .time_init = mpc83xx_time_init, ++ .calibrate_decr = generic_calibrate_decr, ++}; |