m68k/atari: USB - add platform devices for EtherNAT/NetUSBee ISP1160 HCD

Add platform devices used by the isp116x-hcd driver for EtherNAT and
NetUSBee. Note that the NetUSBee also contains a RTL8019 Ethernet chip,
so its platform device is used to cover the EtherNEC case, too.
Register definitions thanks to David Galvez <dgalvez75@gmail.com>

[Geert] Conditionalize isp1160_delay() definition

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

1 files changed, 129 insertions, 6 deletions

diff --git a/arch/m68k/atari/config.c b/arch/m68k/atari/config.c
index 83ff931ad97a..fb2d0bd9b3ad 100644
--- a/arch/m68k/atari/config.c
+++ b/arch/m68k/atari/config.c
@@ -32,6 +32,7 @@
 #include <linux/delay.h>
 #include <linux/ioport.h>
 #include <linux/platform_device.h>
+#include <linux/usb/isp116x.h>
 #include <linux/vt_kern.h>
 #include <linux/module.h>
 
@@ -659,9 +660,16 @@ static void atari_get_hardware_list(struct seq_file *m)
 
 /*
  * MSch: initial platform device support for Atari,
- * required for EtherNAT/EtherNEC drivers
+ * required for EtherNAT/EtherNEC/NetUSBee drivers
  */
 
+#if defined(CONFIG_ATARI_ETHERNAT) || defined(CONFIG_ATARI_ETHERNEC)
+static void isp1160_delay(struct device *dev, int delay)
+{
+        ndelay(delay);
+}
+#endif
+
 #ifdef CONFIG_ATARI_ETHERNAT
 /*
  * EtherNAT: SMC91C111 Ethernet chipset, handled by smc91x driver
@@ -691,8 +699,65 @@ static struct platform_device smc91x_device = {
         .resource       = smc91x_resources,
 };
 
+/*
+ * ISP 1160 - using the isp116x-hcd module
+ */
+
+#define ATARI_USB_PHYS_ADDR     0x80000012
+#define ATARI_USB_IRQ           139
+
+static struct resource isp1160_resources[] = {
+        [0] = {
+                .name   = "isp1160-data",
+                .start  = ATARI_USB_PHYS_ADDR,
+                .end    = ATARI_USB_PHYS_ADDR + 0x1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .name   = "isp1160-regs",
+                .start  = ATARI_USB_PHYS_ADDR + 0x4,
+                .end    = ATARI_USB_PHYS_ADDR + 0x5,
+                .flags  = IORESOURCE_MEM,
+        },
+        [2] = {
+                .name   = "isp1160-irq",
+                .start  = ATARI_USB_IRQ,
+                .end    = ATARI_USB_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
+static struct isp116x_platform_data isp1160_platform_data = {
+        /* Enable internal resistors on downstream ports */
+        .sel15Kres              = 1,
+        /* On-chip overcurrent protection */
+        .oc_enable              = 1,
+        /* INT output polarity */
+        .int_act_high           = 1,
+        /* INT edge or level triggered */
+        .int_edge_triggered     = 0,
+
+        /* WAKEUP pin connected - NOT SUPPORTED  */
+        /* .remote_wakeup_connected = 0, */
+        /* Wakeup by devices on usb bus enabled */
+        .remote_wakeup_enable   = 0,
+        .delay                  = isp1160_delay,
+};
+
+static struct platform_device isp1160_device = {
+        .name           = "isp116x-hcd",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(isp1160_resources),
+        .resource       = isp1160_resources,
+        .dev                    = {
+                .platform_data  = &isp1160_platform_data,
+        },
+};
+
 static struct platform_device *atari_ethernat_devices[] __initdata = {
-        &smc91x_device
+        &smc91x_device,
+        &isp1160_device
 };
 #endif /* CONFIG_ATARI_ETHERNAT */
 
@@ -728,8 +793,66 @@ static struct platform_device rtl8019_device = {
         .resource       = rtl8019_resources,
 };
 
-static struct platform_device *atari_ethernec_devices[] __initdata = {
-        &rtl8019_device
+/*
+ * NetUSBee: ISP1160 USB host adapter via ROM-port adapter
+ */
+
+#define ATARI_NETUSBEE_PHYS_ADDR        0xfffa8000
+#define ATARI_NETUSBEE_BASE             0x340
+#define ATARI_NETUSBEE_IRQ              IRQ_MFP_TIMER2
+
+static struct resource netusbee_resources[] = {
+        [0] = {
+                .name   = "isp1160-data",
+                .start  = ATARI_NETUSBEE_BASE,
+                .end    = ATARI_NETUSBEE_BASE + 0x1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .name   = "isp1160-regs",
+                .start  = ATARI_NETUSBEE_BASE + 0x20,
+                .end    = ATARI_NETUSBEE_BASE + 0x21,
+                .flags  = IORESOURCE_MEM,
+        },
+        [2] = {
+                .name   = "isp1160-irq",
+                .start  = ATARI_NETUSBEE_IRQ,
+                .end    = ATARI_NETUSBEE_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+/* (DataBusWidth16|AnalogOCEnable|DREQOutputPolarity|DownstreamPort15KRSel ) */
+static struct isp116x_platform_data netusbee_platform_data = {
+        /* Enable internal resistors on downstream ports */
+        .sel15Kres              = 1,
+        /* On-chip overcurrent protection */
+        .oc_enable              = 1,
+        /* INT output polarity */
+        .int_act_high           = 1,
+        /* INT edge or level triggered */
+        .int_edge_triggered     = 0,
+
+        /* WAKEUP pin connected - NOT SUPPORTED  */
+        /* .remote_wakeup_connected = 0, */
+        /* Wakeup by devices on usb bus enabled */
+        .remote_wakeup_enable   = 0,
+        .delay                  = isp1160_delay,
+};
+
+static struct platform_device netusbee_device = {
+        .name           = "isp116x-hcd",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(netusbee_resources),
+        .resource       = netusbee_resources,
+        .dev                    = {
+                .platform_data  = &netusbee_platform_data,
+        },
+};
+
+static struct platform_device *atari_netusbee_devices[] __initdata = {
+        &rtl8019_device,
+        &netusbee_device
 };
 #endif /* CONFIG_ATARI_ETHERNEC */
 
@@ -758,8 +881,8 @@ int __init atari_platform_init(void)
                 unsigned char *enec_virt;
                 enec_virt = (unsigned char *)ioremap((ATARI_ETHERNEC_PHYS_ADDR), 0xf);
                 if (hwreg_present(enec_virt)) {
-                        error = platform_add_devices(atari_ethernec_devices,
-                                                ARRAY_SIZE(atari_ethernec_devices));
+                        error = platform_add_devices(atari_netusbee_devices,
+                                                ARRAY_SIZE(atari_netusbee_devices));
                         if (error && !rv)
                                 rv = error;
                 }