[PATCH] m32r: Support M32104UT target platform
This patch is for supporting a new target platform, Renesas M32104UT
evaluation board.
The M32104UT is an eval board based on an uT-Engine specification. This board
has an MMU-less M32R family processor, M32104.
http://www-wa0.personal-media.co.jp/pmc/archive/te/te_m32104_e.pdf
This board is one of the most popular M32R platform, so we have ported
Linux/M32R to it.
Signed-off-by: Naoto Sugai <Sugai.Naoto@ak.MitsubishiElectric.co.jp>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/m32r/kernel/setup_m32104ut.c b/arch/m32r/kernel/setup_m32104ut.c
new file mode 100644
index 0000000..ab16c66
--- /dev/null
+++ b/arch/m32r/kernel/setup_m32104ut.c
@@ -0,0 +1,162 @@
+/*
+ * linux/arch/m32r/kernel/setup_m32104ut.c
+ *
+ * Setup routines for M32104UT Board
+ *
+ * Copyright (c) 2002-2005 Hiroyuki Kondo, Hirokazu Takata,
+ * Hitoshi Yamamoto, Mamoru Sakugawa,
+ * Naoto Sugai, Hayato Fujiwara
+ */
+
+#include <linux/config.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+#include <asm/system.h>
+#include <asm/m32r.h>
+#include <asm/io.h>
+
+#define irq2port(x) (M32R_ICU_CR1_PORTL + ((x - 1) * sizeof(unsigned long)))
+
+#ifndef CONFIG_SMP
+typedef struct {
+ unsigned long icucr; /* ICU Control Register */
+} icu_data_t;
+#endif /* CONFIG_SMP */
+
+icu_data_t icu_data[NR_IRQS];
+
+static void disable_m32104ut_irq(unsigned int irq)
+{
+ unsigned long port, data;
+
+ port = irq2port(irq);
+ data = icu_data[irq].icucr|M32R_ICUCR_ILEVEL7;
+ outl(data, port);
+}
+
+static void enable_m32104ut_irq(unsigned int irq)
+{
+ unsigned long port, data;
+
+ port = irq2port(irq);
+ data = icu_data[irq].icucr|M32R_ICUCR_IEN|M32R_ICUCR_ILEVEL6;
+ outl(data, port);
+}
+
+static void mask_and_ack_m32104ut(unsigned int irq)
+{
+ disable_m32104ut_irq(irq);
+}
+
+static void end_m32104ut_irq(unsigned int irq)
+{
+ enable_m32104ut_irq(irq);
+}
+
+static unsigned int startup_m32104ut_irq(unsigned int irq)
+{
+ enable_m32104ut_irq(irq);
+ return (0);
+}
+
+static void shutdown_m32104ut_irq(unsigned int irq)
+{
+ unsigned long port;
+
+ port = irq2port(irq);
+ outl(M32R_ICUCR_ILEVEL7, port);
+}
+
+static struct hw_interrupt_type m32104ut_irq_type =
+{
+ .typename = "M32104UT-IRQ",
+ .startup = startup_m32104ut_irq,
+ .shutdown = shutdown_m32104ut_irq,
+ .enable = enable_m32104ut_irq,
+ .disable = disable_m32104ut_irq,
+ .ack = mask_and_ack_m32104ut,
+ .end = end_m32104ut_irq
+};
+
+void __init init_IRQ(void)
+{
+ static int once = 0;
+
+ if (once)
+ return;
+ else
+ once++;
+
+#if defined(CONFIG_SMC91X)
+ /* INT#0: LAN controller on M32104UT-LAN (SMC91C111)*/
+ irq_desc[M32R_IRQ_INT0].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_INT0].handler = &m32104ut_irq_type;
+ irq_desc[M32R_IRQ_INT0].action = 0;
+ irq_desc[M32R_IRQ_INT0].depth = 1;
+ icu_data[M32R_IRQ_INT0].icucr = M32R_ICUCR_IEN | M32R_ICUCR_ISMOD11; /* "H" level sense */
+ disable_m32104ut_irq(M32R_IRQ_INT0);
+#endif /* CONFIG_SMC91X */
+
+ /* MFT2 : system timer */
+ irq_desc[M32R_IRQ_MFT2].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_MFT2].handler = &m32104ut_irq_type;
+ irq_desc[M32R_IRQ_MFT2].action = 0;
+ irq_desc[M32R_IRQ_MFT2].depth = 1;
+ icu_data[M32R_IRQ_MFT2].icucr = M32R_ICUCR_IEN;
+ disable_m32104ut_irq(M32R_IRQ_MFT2);
+
+#ifdef CONFIG_SERIAL_M32R_SIO
+ /* SIO0_R : uart receive data */
+ irq_desc[M32R_IRQ_SIO0_R].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_SIO0_R].handler = &m32104ut_irq_type;
+ irq_desc[M32R_IRQ_SIO0_R].action = 0;
+ irq_desc[M32R_IRQ_SIO0_R].depth = 1;
+ icu_data[M32R_IRQ_SIO0_R].icucr = M32R_ICUCR_IEN;
+ disable_m32104ut_irq(M32R_IRQ_SIO0_R);
+
+ /* SIO0_S : uart send data */
+ irq_desc[M32R_IRQ_SIO0_S].status = IRQ_DISABLED;
+ irq_desc[M32R_IRQ_SIO0_S].handler = &m32104ut_irq_type;
+ irq_desc[M32R_IRQ_SIO0_S].action = 0;
+ irq_desc[M32R_IRQ_SIO0_S].depth = 1;
+ icu_data[M32R_IRQ_SIO0_S].icucr = M32R_ICUCR_IEN;
+ disable_m32104ut_irq(M32R_IRQ_SIO0_S);
+#endif /* CONFIG_SERIAL_M32R_SIO */
+}
+
+#if defined(CONFIG_SMC91X)
+
+#define LAN_IOSTART 0x300
+#define LAN_IOEND 0x320
+static struct resource smc91x_resources[] = {
+ [0] = {
+ .start = (LAN_IOSTART),
+ .end = (LAN_IOEND),
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = M32R_IRQ_INT0,
+ .end = M32R_IRQ_INT0,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device smc91x_device = {
+ .name = "smc91x",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(smc91x_resources),
+ .resource = smc91x_resources,
+};
+#endif
+
+static int __init platform_init(void)
+{
+#if defined(CONFIG_SMC91X)
+ platform_device_register(&smc91x_device);
+#endif
+ return 0;
+}
+arch_initcall(platform_init);