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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2008-09-01 22:22:40 +0900
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 16:18:49 +0100
commitb27311e1cace4e296ace786c886d22f7a8ec78d6 (patch)
tree94d962590160c480f7ef4d0cbb8d43406d91ab1d /arch/mips/txx9/rbtx4939/setup.c
parent0dcdbe6add26719e956299eb519542f7d2f7d0a8 (diff)
downloadvexpress-lsk-b27311e1cace4e296ace786c886d22f7a8ec78d6.tar.gz
MIPS: TXx9: Add RBTX4939 board support
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100644 arch/mips/txx9/rbtx4939/Makefile create mode 100644 arch/mips/txx9/rbtx4939/irq.c create mode 100644 arch/mips/txx9/rbtx4939/prom.c create mode 100644 arch/mips/txx9/rbtx4939/setup.c create mode 100644 include/asm-mips/txx9/rbtx4939.h
Diffstat (limited to 'arch/mips/txx9/rbtx4939/setup.c')
-rw-r--r--arch/mips/txx9/rbtx4939/setup.c306
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 00000000000..277864d5e77
--- /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
+};