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83 lines
1.9 KiB
Diff
83 lines
1.9 KiB
Diff
--- a/arch/mips/sibyte/swarm/platform.c
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+++ b/arch/mips/sibyte/swarm/platform.c
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@@ -5,6 +5,7 @@
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#include <linux/platform_device.h>
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#include <linux/ata_platform.h>
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+#include <asm/addrspace.h>
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#include <asm/sibyte/board.h>
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#include <asm/sibyte/sb1250_genbus.h>
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#include <asm/sibyte/sb1250_regs.h>
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@@ -83,3 +84,71 @@ static int __init swarm_pata_init(void)
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device_initcall(swarm_pata_init);
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#endif /* defined(CONFIG_SIBYTE_SWARM) || defined(CONFIG_SIBYTE_LITTLESUR) */
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+
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+#ifdef CONFIG_SIBYTE_RHONE
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+
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+#include <linux/mtd/partitions.h>
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+#include <linux/mtd/physmap.h>
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+
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+/* The board has 16MB flash but CFE sets up only 2MB */
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+#define PHYS_TO_K1(a) CKSEG1ADDR(a)
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+#define BOOTROM_SIZE 0x100
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+
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+static void fixup_cs0_size(void)
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+{
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+ SBWRITECSR(((A_IO_EXT_CS_BASE(0)) + R_IO_EXT_MULT_SIZE), BOOTROM_SIZE);
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+}
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+
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+static struct mtd_partition flash_parts[] = {
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+ {
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+ .name = "cfe",
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+ .offset = 0x00000000,
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+ .size = 0x00200000,
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+ .mask_flags = MTD_WRITEABLE,
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+ },
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+ {
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+ .name = "os",
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+ .offset = 0x00200000,
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+ .size = 0x00d00000,
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+ },
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+ {
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+ .name = "environment",
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+ .offset = 0x00f00000,
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+ .size = 0x00100000,
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+ .mask_flags = MTD_WRITEABLE,
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+ },
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+};
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+
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+static struct physmap_flash_data flash_data = {
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+ .width = 1,
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+ .nr_parts = ARRAY_SIZE(flash_parts),
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+ .parts = flash_parts,
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+};
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+
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+static struct resource flash_resource = {
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+ .start = 0x1fc00000,
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+ .end = 0x20bfffff,
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+ .flags = IORESOURCE_MEM,
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+};
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+
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+static struct platform_device flash_device = {
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+ .name = "physmap-flash",
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+ .id = 0,
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+ .resource = &flash_resource,
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+ .num_resources = 1,
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+ .dev = {
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+ .platform_data = &flash_data,
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+ },
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+};
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+
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+static int __init flash_setup(void)
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+{
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+ fixup_cs0_size();
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+ platform_device_register(&flash_device);
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+
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+ return 0;
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+};
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+
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+device_initcall(flash_setup);
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+
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+#endif /* CONFIG_SIBYTE_RHONE */
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