1 files changed, 223 insertions, 0 deletions

diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
new file mode 100644
index 000000000..0b2002e02
--- /dev/null
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/init.h>
+#include <linux/if_ether.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/paccess.h>
+#include <asm/sgi/ip22.h>
+#include <asm/sgi/hpc3.h>
+#include <asm/sgi/mc.h>
+#include <asm/sgi/seeq.h>
+#include <asm/sgi/wd.h>
+
+static struct resource sgiwd93_0_resources[] = {
+        {
+                .name   = "eth0 irq",
+                .start  = SGI_WD93_0_IRQ,
+                .end    = SGI_WD93_0_IRQ,
+                .flags  = IORESOURCE_IRQ
+        }
+};
+
+static struct sgiwd93_platform_data sgiwd93_0_pd = {
+        .unit   = 0,
+        .irq    = SGI_WD93_0_IRQ,
+};
+
+static u64 sgiwd93_0_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device sgiwd93_0_device = {
+        .name           = "sgiwd93",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(sgiwd93_0_resources),
+        .resource       = sgiwd93_0_resources,
+        .dev = {
+                .platform_data = &sgiwd93_0_pd,
+                .dma_mask = &sgiwd93_0_dma_mask,
+                .coherent_dma_mask = DMA_BIT_MASK(32),
+        },
+};
+
+static struct resource sgiwd93_1_resources[] = {
+        {
+                .name   = "eth0 irq",
+                .start  = SGI_WD93_1_IRQ,
+                .end    = SGI_WD93_1_IRQ,
+                .flags  = IORESOURCE_IRQ
+        }
+};
+
+static struct sgiwd93_platform_data sgiwd93_1_pd = {
+        .unit   = 1,
+        .irq    = SGI_WD93_1_IRQ,
+};
+
+static u64 sgiwd93_1_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device sgiwd93_1_device = {
+        .name           = "sgiwd93",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(sgiwd93_1_resources),
+        .resource       = sgiwd93_1_resources,
+        .dev = {
+                .platform_data = &sgiwd93_1_pd,
+                .dma_mask = &sgiwd93_1_dma_mask,
+                .coherent_dma_mask = DMA_BIT_MASK(32),
+        },
+};
+
+/*
+ * Create a platform device for the GPI port that receives the
+ * image data from the embedded camera.
+ */
+static int __init sgiwd93_devinit(void)
+{
+        int res;
+
+        sgiwd93_0_pd.hregs      = &hpc3c0->scsi_chan0;
+        sgiwd93_0_pd.wdregs     = (unsigned char *) hpc3c0->scsi0_ext;
+
+        res = platform_device_register(&sgiwd93_0_device);
+        if (res)
+                return res;
+
+        if (!ip22_is_fullhouse())
+                return 0;
+
+        sgiwd93_1_pd.hregs      = &hpc3c0->scsi_chan1;
+        sgiwd93_1_pd.wdregs     = (unsigned char *) hpc3c0->scsi1_ext;
+
+        return platform_device_register(&sgiwd93_1_device);
+}
+
+device_initcall(sgiwd93_devinit);
+
+static struct resource sgiseeq_0_resources[] = {
+        {
+                .name   = "eth0 irq",
+                .start  = SGI_ENET_IRQ,
+                .end    = SGI_ENET_IRQ,
+                .flags  = IORESOURCE_IRQ
+        }
+};
+
+static struct sgiseeq_platform_data eth0_pd;
+
+static u64 sgiseeq_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device eth0_device = {
+        .name           = "sgiseeq",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(sgiseeq_0_resources),
+        .resource       = sgiseeq_0_resources,
+        .dev = {
+                .platform_data = &eth0_pd,
+                .dma_mask = &sgiseeq_dma_mask,
+                .coherent_dma_mask = DMA_BIT_MASK(32),
+        },
+};
+
+static struct resource sgiseeq_1_resources[] = {
+        {
+                .name   = "eth1 irq",
+                .start  = SGI_GIO_0_IRQ,
+                .end    = SGI_GIO_0_IRQ,
+                .flags  = IORESOURCE_IRQ
+        }
+};
+
+static struct sgiseeq_platform_data eth1_pd;
+
+static struct platform_device eth1_device = {
+        .name           = "sgiseeq",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(sgiseeq_1_resources),
+        .resource       = sgiseeq_1_resources,
+        .dev = {
+                .platform_data = &eth1_pd,
+        },
+};
+
+/*
+ * Create a platform device for the GPI port that receives the
+ * image data from the embedded camera.
+ */
+static int __init sgiseeq_devinit(void)
+{
+        unsigned int pbdma __maybe_unused;
+        int res, i;
+
+        eth0_pd.hpc = hpc3c0;
+        eth0_pd.irq = SGI_ENET_IRQ;
+#define EADDR_NVOFS     250
+        for (i = 0; i < 3; i++) {
+                unsigned short tmp = ip22_nvram_read(EADDR_NVOFS / 2 + i);
+
+                eth0_pd.mac[2 * i]     = tmp >> 8;
+                eth0_pd.mac[2 * i + 1] = tmp & 0xff;
+        }
+
+        res = platform_device_register(&eth0_device);
+        if (res)
+                return res;
+
+        /* Second HPC is missing? */
+        if (ip22_is_fullhouse() ||
+            get_dbe(pbdma, (unsigned int *)&hpc3c1->pbdma[1]))
+                return 0;
+
+        sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 | SGIMC_GIOPAR_EXP164 |
+                         SGIMC_GIOPAR_HPC264;
+        hpc3c1->pbus_piocfg[0][0] = 0x3ffff;
+        /* interrupt/config register on Challenge S Mezz board */
+        hpc3c1->pbus_extregs[0][0] = 0x30;
+
+        eth1_pd.hpc = hpc3c1;
+        eth1_pd.irq = SGI_GIO_0_IRQ;
+#define EADDR_NVOFS     250
+        for (i = 0; i < 3; i++) {
+                unsigned short tmp = ip22_eeprom_read(&hpc3c1->eeprom,
+                                                      EADDR_NVOFS / 2 + i);
+
+                eth1_pd.mac[2 * i]     = tmp >> 8;
+                eth1_pd.mac[2 * i + 1] = tmp & 0xff;
+        }
+
+        return platform_device_register(&eth1_device);
+}
+
+device_initcall(sgiseeq_devinit);
+
+static int __init sgi_hal2_devinit(void)
+{
+        return IS_ERR(platform_device_register_simple("sgihal2", 0, NULL, 0));
+}
+
+device_initcall(sgi_hal2_devinit);
+
+static int __init sgi_button_devinit(void)
+{
+        if (ip22_is_fullhouse())
+                return 0; /* full house has no volume buttons */
+
+        return IS_ERR(platform_device_register_simple("sgibtns", -1, NULL, 0));
+}
+
+device_initcall(sgi_button_devinit);
+
+static int __init sgi_ds1286_devinit(void)
+{
+        struct resource res;
+
+        memset(&res, 0, sizeof(res));
+        res.start = HPC3_CHIP0_BASE + offsetof(struct hpc3_regs, rtcregs);
+        res.end = res.start + sizeof(hpc3c0->rtcregs) - 1;
+        res.flags = IORESOURCE_MEM;
+
+        return IS_ERR(platform_device_register_simple("rtc-ds1286", -1,
+                                                      &res, 1));
+}
+
+device_initcall(sgi_ds1286_devinit);