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-rw-r--r--arch/m68k/platform/54xx/Makefile19
-rw-r--r--arch/m68k/platform/54xx/config.c162
-rw-r--r--arch/m68k/platform/54xx/firebee.c86
3 files changed, 267 insertions, 0 deletions
diff --git a/arch/m68k/platform/54xx/Makefile b/arch/m68k/platform/54xx/Makefile
new file mode 100644
index 00000000000..6cfd090ec3c
--- /dev/null
+++ b/arch/m68k/platform/54xx/Makefile
@@ -0,0 +1,19 @@
+#
+# Makefile for the m68knommu linux kernel.
+#
+
+#
+# If you want to play with the HW breakpoints then you will
+# need to add define this, which will give you a stack backtrace
+# on the console port whenever a DBG interrupt occurs. You have to
+# set up you HW breakpoints to trigger a DBG interrupt:
+#
+# EXTRA_CFLAGS += -DTRAP_DBG_INTERRUPT
+# EXTRA_AFLAGS += -DTRAP_DBG_INTERRUPT
+#
+
+asflags-$(CONFIG_FULLDEBUG) := -DDEBUGGER_COMPATIBLE_CACHE=1
+
+obj-y := config.o
+obj-$(CONFIG_FIREBEE) += firebee.o
+
diff --git a/arch/m68k/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c
new file mode 100644
index 00000000000..ee043540bfa
--- /dev/null
+++ b/arch/m68k/platform/54xx/config.c
@@ -0,0 +1,162 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/54xx/config.c
+ *
+ * Copyright (C) 2010, Philippe De Muyter <phdm@macqel.be>
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+#include <asm/pgalloc.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/m54xxsim.h>
+#include <asm/mcfuart.h>
+#include <asm/m54xxgpt.h>
+#ifdef CONFIG_MMU
+#include <asm/mmu_context.h>
+#endif
+
+/***************************************************************************/
+
+static struct mcf_platform_uart m54xx_uart_platform[] = {
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE1,
+ .irq = 64 + 35,
+ },
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE2,
+ .irq = 64 + 34,
+ },
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE3,
+ .irq = 64 + 33,
+ },
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE4,
+ .irq = 64 + 32,
+ },
+};
+
+static struct platform_device m54xx_uart = {
+ .name = "mcfuart",
+ .id = 0,
+ .dev.platform_data = m54xx_uart_platform,
+};
+
+static struct platform_device *m54xx_devices[] __initdata = {
+ &m54xx_uart,
+};
+
+
+/***************************************************************************/
+
+static void __init m54xx_uart_init_line(int line, int irq)
+{
+ int rts_cts;
+
+ /* enable io pins */
+ switch (line) {
+ case 0:
+ rts_cts = 0; break;
+ case 1:
+ rts_cts = MCF_PAR_PSC_RTS_RTS; break;
+ case 2:
+ rts_cts = MCF_PAR_PSC_RTS_RTS | MCF_PAR_PSC_CTS_CTS; break;
+ case 3:
+ rts_cts = 0; break;
+ }
+ __raw_writeb(MCF_PAR_PSC_TXD | rts_cts | MCF_PAR_PSC_RXD,
+ MCF_MBAR + MCF_PAR_PSC(line));
+}
+
+static void __init m54xx_uarts_init(void)
+{
+ const int nrlines = ARRAY_SIZE(m54xx_uart_platform);
+ int line;
+
+ for (line = 0; (line < nrlines); line++)
+ m54xx_uart_init_line(line, m54xx_uart_platform[line].irq);
+}
+
+/***************************************************************************/
+
+static void mcf54xx_reset(void)
+{
+ /* disable interrupts and enable the watchdog */
+ asm("movew #0x2700, %sr\n");
+ __raw_writel(0, MCF_MBAR + MCF_GPT_GMS0);
+ __raw_writel(MCF_GPT_GCIR_CNT(1), MCF_MBAR + MCF_GPT_GCIR0);
+ __raw_writel(MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE | MCF_GPT_GMS_TMS(4),
+ MCF_MBAR + MCF_GPT_GMS0);
+}
+
+/***************************************************************************/
+
+#ifdef CONFIG_MMU
+
+unsigned long num_pages;
+
+static void __init mcf54xx_bootmem_alloc(void)
+{
+ unsigned long start_pfn;
+ unsigned long memstart;
+
+ /* _rambase and _ramend will be naturally page aligned */
+ m68k_memory[0].addr = _rambase;
+ m68k_memory[0].size = _ramend - _rambase;
+
+ /* compute total pages in system */
+ num_pages = (_ramend - _rambase) >> PAGE_SHIFT;
+
+ /* page numbers */
+ memstart = PAGE_ALIGN(_ramstart);
+ min_low_pfn = _rambase >> PAGE_SHIFT;
+ start_pfn = memstart >> PAGE_SHIFT;
+ max_low_pfn = _ramend >> PAGE_SHIFT;
+ high_memory = (void *)_ramend;
+
+ m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;
+ module_fixup(NULL, __start_fixup, __stop_fixup);
+
+ /* setup bootmem data */
+ m68k_setup_node(0);
+ memstart += init_bootmem_node(NODE_DATA(0), start_pfn,
+ min_low_pfn, max_low_pfn);
+ free_bootmem_node(NODE_DATA(0), memstart, _ramend - memstart);
+}
+
+#endif /* CONFIG_MMU */
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+#ifdef CONFIG_MMU
+ mcf54xx_bootmem_alloc();
+ mmu_context_init();
+#endif
+ mach_reset = mcf54xx_reset;
+ m54xx_uarts_init();
+}
+
+/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+
+ platform_add_devices(m54xx_devices, ARRAY_SIZE(m54xx_devices));
+ return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/
diff --git a/arch/m68k/platform/54xx/firebee.c b/arch/m68k/platform/54xx/firebee.c
new file mode 100644
index 00000000000..46d50534f98
--- /dev/null
+++ b/arch/m68k/platform/54xx/firebee.c
@@ -0,0 +1,86 @@
+/***************************************************************************/
+
+/*
+ * firebee.c -- extra startup code support for the FireBee boards
+ *
+ * Copyright (C) 2011, Greg Ungerer (gerg@snapgear.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+
+/***************************************************************************/
+
+/*
+ * 8MB of NOR flash fitted to the FireBee board.
+ */
+#define FLASH_PHYS_ADDR 0xe0000000 /* Physical address of flash */
+#define FLASH_PHYS_SIZE 0x00800000 /* Size of flash */
+
+#define PART_BOOT_START 0x00000000 /* Start at bottom of flash */
+#define PART_BOOT_SIZE 0x00040000 /* 256k in size */
+#define PART_IMAGE_START 0x00040000 /* Start after boot loader */
+#define PART_IMAGE_SIZE 0x006c0000 /* Most of flash */
+#define PART_FPGA_START 0x00700000 /* Start at offset 7MB */
+#define PART_FPGA_SIZE 0x00100000 /* 1MB in size */
+
+static struct mtd_partition firebee_flash_parts[] = {
+ {
+ .name = "dBUG",
+ .offset = PART_BOOT_START,
+ .size = PART_BOOT_SIZE,
+ },
+ {
+ .name = "FPGA",
+ .offset = PART_FPGA_START,
+ .size = PART_FPGA_SIZE,
+ },
+ {
+ .name = "image",
+ .offset = PART_IMAGE_START,
+ .size = PART_IMAGE_SIZE,
+ },
+};
+
+static struct physmap_flash_data firebee_flash_data = {
+ .width = 2,
+ .nr_parts = ARRAY_SIZE(firebee_flash_parts),
+ .parts = firebee_flash_parts,
+};
+
+static struct resource firebee_flash_resource = {
+ .start = FLASH_PHYS_ADDR,
+ .end = FLASH_PHYS_ADDR + FLASH_PHYS_SIZE,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device firebee_flash = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &firebee_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &firebee_flash_resource,
+};
+
+/***************************************************************************/
+
+static int __init init_firebee(void)
+{
+ platform_device_register(&firebee_flash);
+ return 0;
+}
+
+arch_initcall(init_firebee);
+
+/***************************************************************************/