#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+#include <asm/reboot.h>
#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#ifdef CONFIG_CPU_TX49XX
+#include <asm/txx9/tx4938.h>
+#endif
/* EBUSC settings of TX4927, etc. */
struct resource txx9_ce_res[8];
static char txx9_ce_res_name[8][4]; /* "CEn" */
/* pcode, internal register */
+unsigned int txx9_pcode;
char txx9_pcode_str[8];
static struct resource txx9_reg_res = {
.name = txx9_pcode_str,
unsigned int txx9_master_clock;
unsigned int txx9_cpu_clock;
unsigned int txx9_gbus_clock;
+
+int txx9_ccfg_toeon __initdata = 1;
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+ if (!strcmp(id, "spi-baseclk"))
+ return (struct clk *)((unsigned long)txx9_gbus_clock / 2 / 4);
+ if (!strcmp(id, "imbus_clk"))
+ return (struct clk *)((unsigned long)txx9_gbus_clock / 2);
+ return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
+
+/* GPIO support */
+
+#ifdef CONFIG_GENERIC_GPIO
+int gpio_to_irq(unsigned gpio)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL(gpio_to_irq);
+
+int irq_to_gpio(unsigned irq)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL(irq_to_gpio);
+#endif
+
+extern struct txx9_board_vec jmr3927_vec;
+extern struct txx9_board_vec rbtx4927_vec;
+extern struct txx9_board_vec rbtx4937_vec;
+extern struct txx9_board_vec rbtx4938_vec;
+
+struct txx9_board_vec *txx9_board_vec __initdata;
+static char txx9_system_type[32];
+
+void __init prom_init_cmdline(void)
+{
+ int argc = (int)fw_arg0;
+ char **argv = (char **)fw_arg1;
+ int i; /* Always ignore the "-c" at argv[0] */
+#ifdef CONFIG_64BIT
+ char *fixed_argv[32];
+ for (i = 0; i < argc; i++)
+ fixed_argv[i] = (char *)(long)(*((__s32 *)argv + i));
+ argv = fixed_argv;
+#endif
+
+ /* ignore all built-in args if any f/w args given */
+ if (argc > 1)
+ *arcs_cmdline = '\0';
+
+ for (i = 1; i < argc; i++) {
+ if (i != 1)
+ strcat(arcs_cmdline, " ");
+ strcat(arcs_cmdline, argv[i]);
+ }
+}
+
+void __init prom_init(void)
+{
+#ifdef CONFIG_CPU_TX39XX
+ txx9_board_vec = &jmr3927_vec;
+#endif
+#ifdef CONFIG_CPU_TX49XX
+ switch (TX4938_REV_PCODE()) {
+#ifdef CONFIG_TOSHIBA_RBTX4927
+ case 0x4927:
+ txx9_board_vec = &rbtx4927_vec;
+ break;
+ case 0x4937:
+ txx9_board_vec = &rbtx4937_vec;
+ break;
+#endif
+#ifdef CONFIG_TOSHIBA_RBTX4938
+ case 0x4938:
+ txx9_board_vec = &rbtx4938_vec;
+ break;
+#endif
+ }
+#endif
+
+ strcpy(txx9_system_type, txx9_board_vec->system);
+
+ txx9_board_vec->prom_init();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+ return txx9_system_type;
+}
+
+char * __init prom_getcmdline(void)
+{
+ return &(arcs_cmdline[0]);
+}
+
+static void __noreturn txx9_machine_halt(void)
+{
+ local_irq_disable();
+ clear_c0_status(ST0_IM);
+ while (1) {
+ if (cpu_wait) {
+ (*cpu_wait)();
+ if (cpu_has_counter) {
+ /*
+ * Clear counter interrupt while it
+ * breaks WAIT instruction even if
+ * masked.
+ */
+ write_c0_compare(0);
+ }
+ }
+ }
+}
+
+/* Watchdog support */
+void __init txx9_wdt_init(unsigned long base)
+{
+ struct resource res = {
+ .start = base,
+ .end = base + 0x100 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ platform_device_register_simple("txx9wdt", -1, &res, 1);
+}
+
+/* wrappers */
+void __init plat_mem_setup(void)
+{
+ ioport_resource.start = 0;
+ ioport_resource.end = ~0UL; /* no limit */
+ iomem_resource.start = 0;
+ iomem_resource.end = ~0UL; /* no limit */
+
+ /* fallback restart/halt routines */
+ _machine_restart = (void (*)(char *))txx9_machine_halt;
+ _machine_halt = txx9_machine_halt;
+ pm_power_off = txx9_machine_halt;
+
+#ifdef CONFIG_PCI
+ pcibios_plat_setup = txx9_pcibios_setup;
+#endif
+ txx9_board_vec->mem_setup();
+}
+
+void __init arch_init_irq(void)
+{
+ txx9_board_vec->irq_setup();
+}
+
+void __init plat_time_init(void)
+{
+ txx9_board_vec->time_init();
+}
+
+static int __init _txx9_arch_init(void)
+{
+ if (txx9_board_vec->arch_init)
+ txx9_board_vec->arch_init();
+ return 0;
+}
+arch_initcall(_txx9_arch_init);
+
+static int __init _txx9_device_init(void)
+{
+ if (txx9_board_vec->device_init)
+ txx9_board_vec->device_init();
+ return 0;
+}
+device_initcall(_txx9_device_init);
+
+int (*txx9_irq_dispatch)(int pending);
+asmlinkage void plat_irq_dispatch(void)
+{
+ int pending = read_c0_status() & read_c0_cause() & ST0_IM;
+ int irq = txx9_irq_dispatch(pending);
+
+ if (likely(irq >= 0))
+ do_IRQ(irq);
+ else
+ spurious_interrupt();
+}
+
+/* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
+#ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
+static unsigned long __swizzle_addr_none(unsigned long port)
+{
+ return port;
+}
+unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
+EXPORT_SYMBOL(__swizzle_addr_b);
+#endif
projects / linux-2.6-omap-h63xx.git / blobdiff