sh: add support for SMSC Polaris platform
Polaris is an SMSC reference platform with a SH7709S CPU and LAN9118
ethernet controller. This patch adds support for it.
Updated following feedback from Nobuhiro Iwamatsu.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/board-polaris.c b/arch/sh/boards/board-polaris.c
new file mode 100644
index 0000000..62607eb
--- /dev/null
+++ b/arch/sh/boards/board-polaris.c
@@ -0,0 +1,149 @@
+/*
+ * June 2006 steve.glendinning@smsc.com
+ *
+ * Polaris-specific resource declaration
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/smsc911x.h>
+#include <linux/io.h>
+#include <asm/irq.h>
+#include <asm/machvec.h>
+#include <asm/heartbeat.h>
+#include <cpu/gpio.h>
+#include <mach-se/mach/se.h>
+
+#define BCR2 (0xFFFFFF62)
+#define WCR2 (0xFFFFFF66)
+#define AREA5_WAIT_CTRL (0x1C00)
+#define WAIT_STATES_10 (0x7)
+
+static struct resource smsc911x_resources[] = {
+ [0] = {
+ .name = "smsc911x-memory",
+ .start = PA_EXT5,
+ .end = PA_EXT5 + 0x1fff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .name = "smsc911x-irq",
+ .start = IRQ0_IRQ,
+ .end = IRQ0_IRQ,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct smsc911x_platform_config smsc911x_config = {
+ .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+ .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+ .flags = SMSC911X_USE_32BIT,
+ .phy_interface = PHY_INTERFACE_MODE_MII,
+};
+
+static struct platform_device smsc911x_device = {
+ .name = "smsc911x",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(smsc911x_resources),
+ .resource = smsc911x_resources,
+ .dev = {
+ .platform_data = &smsc911x_config,
+ },
+};
+
+static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3 };
+
+static struct heartbeat_data heartbeat_data = {
+ .bit_pos = heartbeat_bit_pos,
+ .nr_bits = ARRAY_SIZE(heartbeat_bit_pos),
+ .regsize = 8,
+};
+
+static struct resource heartbeat_resources[] = {
+ [0] = {
+ .start = PORT_PCDR,
+ .end = PORT_PCDR,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device heartbeat_device = {
+ .name = "heartbeat",
+ .id = -1,
+ .dev = {
+ .platform_data = &heartbeat_data,
+ },
+ .num_resources = ARRAY_SIZE(heartbeat_resources),
+ .resource = heartbeat_resources,
+};
+
+static struct platform_device *polaris_devices[] __initdata = {
+ &smsc911x_device,
+ &heartbeat_device,
+};
+
+static int __init polaris_initialise(void)
+{
+ u16 wcr, bcr_mask;
+
+ printk(KERN_INFO "Configuring Polaris external bus\n");
+
+ /* Configure area 5 with 2 wait states */
+ wcr = ctrl_inw(WCR2);
+ wcr &= (~AREA5_WAIT_CTRL);
+ wcr |= (WAIT_STATES_10 << 10);
+ ctrl_outw(wcr, WCR2);
+
+ /* Configure area 5 for 32-bit access */
+ bcr_mask = ctrl_inw(BCR2);
+ bcr_mask |= 1 << 10;
+ ctrl_outw(bcr_mask, BCR2);
+
+ return platform_add_devices(polaris_devices,
+ ARRAY_SIZE(polaris_devices));
+}
+arch_initcall(polaris_initialise);
+
+static struct ipr_data ipr_irq_table[] = {
+ /* External IRQs */
+ { IRQ0_IRQ, 0, 0, 1, }, /* IRQ0 */
+ { IRQ1_IRQ, 0, 4, 1, }, /* IRQ1 */
+};
+
+static unsigned long ipr_offsets[] = {
+ INTC_IPRC
+};
+
+static struct ipr_desc ipr_irq_desc = {
+ .ipr_offsets = ipr_offsets,
+ .nr_offsets = ARRAY_SIZE(ipr_offsets),
+
+ .ipr_data = ipr_irq_table,
+ .nr_irqs = ARRAY_SIZE(ipr_irq_table),
+ .chip = {
+ .name = "sh7709-ext",
+ },
+};
+
+static void __init init_polaris_irq(void)
+{
+ /* Disable all interrupts */
+ ctrl_outw(0, BCR_ILCRA);
+ ctrl_outw(0, BCR_ILCRB);
+ ctrl_outw(0, BCR_ILCRC);
+ ctrl_outw(0, BCR_ILCRD);
+ ctrl_outw(0, BCR_ILCRE);
+ ctrl_outw(0, BCR_ILCRF);
+ ctrl_outw(0, BCR_ILCRG);
+
+ register_ipr_controller(&ipr_irq_desc);
+}
+
+static struct sh_machine_vector mv_polaris __initmv = {
+ .mv_name = "Polaris",
+ .mv_nr_irqs = 61,
+ .mv_init_irq = init_polaris_irq,
+};