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-rw-r--r--arch/mips/sgi-ip22/ip22-platform.c223
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 0000000000..0b2002e02a
--- /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);