diff options
Diffstat (limited to 'arch/mips/txx9/rbtx4939/setup.c')
| -rw-r--r-- | arch/mips/txx9/rbtx4939/setup.c | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c new file mode 100644 index 0000000..277864d --- /dev/null +++ b/arch/mips/txx9/rbtx4939/setup.c @@ -0,0 +1,306 @@ +/* + * Toshiba RBTX4939 setup routines. + * Based on linux/arch/mips/txx9/rbtx4938/setup.c, + * and RBTX49xx patch from CELF patch archive. + * + * Copyright (C) 2000-2001,2005-2007 Toshiba Corporation + * 2003-2005 (c) MontaVista Software, 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/kernel.h> +#include <linux/types.h> +#include <linux/platform_device.h> +#include <linux/leds.h> +#include <asm/reboot.h> +#include <asm/txx9/generic.h> +#include <asm/txx9/pci.h> +#include <asm/txx9/rbtx4939.h> + +static void rbtx4939_machine_restart(char *command) +{ + local_irq_disable(); + writeb(1, rbtx4939_reseten_addr); + writeb(1, rbtx4939_softreset_addr); + while (1) + ; +} + +static void __init rbtx4939_time_init(void) +{ + tx4939_time_init(0); +} + +static void __init rbtx4939_pci_setup(void) +{ +#ifdef CONFIG_PCI + int extarb = !(__raw_readq(&tx4939_ccfgptr->ccfg) & TX4939_CCFG_PCIARB); + struct pci_controller *c = &txx9_primary_pcic; + + register_pci_controller(c); + + tx4939_report_pciclk(); + tx4927_pcic_setup(tx4939_pcicptr, c, extarb); + if (!(__raw_readq(&tx4939_ccfgptr->pcfg) & TX4939_PCFG_ATA1MODE) && + (__raw_readq(&tx4939_ccfgptr->pcfg) & + (TX4939_PCFG_ET0MODE | TX4939_PCFG_ET1MODE))) { + tx4939_report_pci1clk(); + + /* mem:64K(max), io:64K(max) (enough for ETH0,ETH1) */ + c = txx9_alloc_pci_controller(NULL, 0, 0x10000, 0, 0x10000); + register_pci_controller(c); + tx4927_pcic_setup(tx4939_pcic1ptr, c, 0); + } + + tx4939_setup_pcierr_irq(); +#endif /* CONFIG_PCI */ +} + +static unsigned long long default_ebccr[] __initdata = { + 0x01c0000000007608ULL, /* 64M ROM */ + 0x017f000000007049ULL, /* 1M IOC */ + 0x0180000000408608ULL, /* ISA */ + 0, +}; + +static void __init rbtx4939_ebusc_setup(void) +{ + int i; + unsigned int sp; + + /* use user-configured speed */ + sp = TX4939_EBUSC_CR(0) & 0x30; + default_ebccr[0] |= sp; + default_ebccr[1] |= sp; + default_ebccr[2] |= sp; + /* initialise by myself */ + for (i = 0; i < ARRAY_SIZE(default_ebccr); i++) { + if (default_ebccr[i]) + ____raw_writeq(default_ebccr[i], + &tx4939_ebuscptr->cr[i]); + else + ____raw_writeq(____raw_readq(&tx4939_ebuscptr->cr[i]) + & ~8, + &tx4939_ebuscptr->cr[i]); + } +} + +static void __init rbtx4939_update_ioc_pen(void) +{ + __u64 pcfg = ____raw_readq(&tx4939_ccfgptr->pcfg); + __u64 ccfg = ____raw_readq(&tx4939_ccfgptr->ccfg); + __u8 pe1 = readb(rbtx4939_pe1_addr); + __u8 pe2 = readb(rbtx4939_pe2_addr); + __u8 pe3 = readb(rbtx4939_pe3_addr); + if (pcfg & TX4939_PCFG_ATA0MODE) + pe1 |= RBTX4939_PE1_ATA(0); + else + pe1 &= ~RBTX4939_PE1_ATA(0); + if (pcfg & TX4939_PCFG_ATA1MODE) { + pe1 |= RBTX4939_PE1_ATA(1); + pe1 &= ~(RBTX4939_PE1_RMII(0) | RBTX4939_PE1_RMII(1)); + } else { + pe1 &= ~RBTX4939_PE1_ATA(1); + if (pcfg & TX4939_PCFG_ET0MODE) + pe1 |= RBTX4939_PE1_RMII(0); + else + pe1 &= ~RBTX4939_PE1_RMII(0); + if (pcfg & TX4939_PCFG_ET1MODE) + pe1 |= RBTX4939_PE1_RMII(1); + else + pe1 &= ~RBTX4939_PE1_RMII(1); + } + if (ccfg & TX4939_CCFG_PTSEL) + pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_P | + RBTX4939_PE3_VP_S); + else { + __u64 vmode = pcfg & + (TX4939_PCFG_VSSMODE | TX4939_PCFG_VPSMODE); + if (vmode == 0) + pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_P | + RBTX4939_PE3_VP_S); + else if (vmode == TX4939_PCFG_VPSMODE) { + pe3 |= RBTX4939_PE3_VP_P; + pe3 &= ~(RBTX4939_PE3_VP | RBTX4939_PE3_VP_S); + } else if (vmode == TX4939_PCFG_VSSMODE) { + pe3 |= RBTX4939_PE3_VP | RBTX4939_PE3_VP_S; + pe3 &= ~RBTX4939_PE3_VP_P; + } else { + pe3 |= RBTX4939_PE3_VP | RBTX4939_PE3_VP_P; + pe3 &= ~RBTX4939_PE3_VP_S; + } + } + if (pcfg & TX4939_PCFG_SPIMODE) { + if (pcfg & TX4939_PCFG_SIO2MODE_GPIO) + pe2 &= ~(RBTX4939_PE2_SIO2 | RBTX4939_PE2_SIO0); + else { + if (pcfg & TX4939_PCFG_SIO2MODE_SIO2) { + pe2 |= RBTX4939_PE2_SIO2; + pe2 &= ~RBTX4939_PE2_SIO0; + } else { + pe2 |= RBTX4939_PE2_SIO0; + pe2 &= ~RBTX4939_PE2_SIO2; + } + } + if (pcfg & TX4939_PCFG_SIO3MODE) + pe2 |= RBTX4939_PE2_SIO3; + else + pe2 &= ~RBTX4939_PE2_SIO3; + pe2 &= ~RBTX4939_PE2_SPI; + } else { + pe2 |= RBTX4939_PE2_SPI; + pe2 &= ~(RBTX4939_PE2_SIO3 | RBTX4939_PE2_SIO2 | + RBTX4939_PE2_SIO0); + } + if ((pcfg & TX4939_PCFG_I2SMODE_MASK) == TX4939_PCFG_I2SMODE_GPIO) + pe2 |= RBTX4939_PE2_GPIO; + else + pe2 &= ~RBTX4939_PE2_GPIO; + writeb(pe1, rbtx4939_pe1_addr); + writeb(pe2, rbtx4939_pe2_addr); + writeb(pe3, rbtx4939_pe3_addr); +} + +#define RBTX4939_MAX_7SEGLEDS 8 + +#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) +static u8 led_val[RBTX4939_MAX_7SEGLEDS]; +struct rbtx4939_led_data { + struct led_classdev cdev; + char name[32]; + unsigned int num; +}; + +/* Use "dot" in 7seg LEDs */ +static void rbtx4939_led_brightness_set(struct led_classdev *led_cdev, + enum led_brightness value) +{ + struct rbtx4939_led_data *led_dat = + container_of(led_cdev, struct rbtx4939_led_data, cdev); + unsigned int num = led_dat->num; + unsigned long flags; + + local_irq_save(flags); + led_val[num] = (led_val[num] & 0x7f) | (value ? 0x80 : 0); + writeb(led_val[num], rbtx4939_7seg_addr(num / 4, num % 4)); + local_irq_restore(flags); +} + +static int __init rbtx4939_led_probe(struct platform_device *pdev) +{ + struct rbtx4939_led_data *leds_data; + int i; + static char *default_triggers[] __initdata = { + "heartbeat", + "ide-disk", + "nand-disk", + }; + + leds_data = kzalloc(sizeof(*leds_data) * RBTX4939_MAX_7SEGLEDS, + GFP_KERNEL); + if (!leds_data) + return -ENOMEM; + for (i = 0; i < RBTX4939_MAX_7SEGLEDS; i++) { + int rc; + struct rbtx4939_led_data *led_dat = &leds_data[i]; + + led_dat->num = i; + led_dat->cdev.brightness_set = rbtx4939_led_brightness_set; + sprintf(led_dat->name, "rbtx4939:amber:%u", i); + led_dat->cdev.name = led_dat->name; + if (i < ARRAY_SIZE(default_triggers)) + led_dat->cdev.default_trigger = default_triggers[i]; + rc = led_classdev_register(&pdev->dev, &led_dat->cdev); + if (rc < 0) + return rc; + led_dat->cdev.brightness_set(&led_dat->cdev, 0); + } + return 0; + +} + +static struct platform_driver rbtx4939_led_driver = { + .driver = { + .name = "rbtx4939-led", + .owner = THIS_MODULE, + }, +}; + +static void __init rbtx4939_led_setup(void) +{ + platform_device_register_simple("rbtx4939-led", -1, NULL, 0); + platform_driver_probe(&rbtx4939_led_driver, rbtx4939_led_probe); +} +#else +static inline void rbtx4939_led_setup(void) +{ +} +#endif + +static void __init rbtx4939_arch_init(void) +{ + rbtx4939_pci_setup(); +} + +static void __init rbtx4939_device_init(void) +{ +#if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE) + int i, j; + unsigned char ethaddr[2][6]; + for (i = 0; i < 2; i++) { + unsigned long area = CKSEG1 + 0x1fff0000 + (i * 0x10); + if (readb(rbtx4939_bdipsw_addr) & 8) { + u16 buf[3]; + area -= 0x03000000; + for (j = 0; j < 3; j++) + buf[j] = le16_to_cpup((u16 *)(area + j * 2)); + memcpy(ethaddr[i], buf, 6); + } else + memcpy(ethaddr[i], (void *)area, 6); + } + tx4939_ethaddr_init(ethaddr[0], ethaddr[1]); +#endif + rbtx4939_led_setup(); + tx4939_wdt_init(); +} + +static void __init rbtx4939_setup(void) +{ + rbtx4939_ebusc_setup(); + /* always enable ATA0 */ + txx9_set64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_ATA0MODE); + rbtx4939_update_ioc_pen(); + if (txx9_master_clock == 0) + txx9_master_clock = 20000000; + tx4939_setup(); + + _machine_restart = rbtx4939_machine_restart; + + pr_info("RBTX4939 (Rev %02x) --- FPGA(Rev %02x) DIPSW:%02x,%02x\n", + readb(rbtx4939_board_rev_addr), readb(rbtx4939_ioc_rev_addr), + readb(rbtx4939_udipsw_addr), readb(rbtx4939_bdipsw_addr)); + +#ifdef CONFIG_PCI + txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0); + txx9_board_pcibios_setup = tx4927_pcibios_setup; +#else + set_io_port_base(RBTX4939_ETHER_BASE); +#endif + + tx4939_sio_init(TX4939_SCLK0(txx9_master_clock), 0); +} + +struct txx9_board_vec rbtx4939_vec __initdata = { + .system = "Tothiba RBTX4939", + .prom_init = rbtx4939_prom_init, + .mem_setup = rbtx4939_setup, + .irq_setup = rbtx4939_irq_setup, + .time_init = rbtx4939_time_init, + .device_init = rbtx4939_device_init, + .arch_init = rbtx4939_arch_init, +#ifdef CONFIG_PCI + .pci_map_irq = tx4939_pci_map_irq, +#endif +}; |