summaryrefslogtreecommitdiffstats
path: root/arch/m68knommu/platform/548x/config.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 07:44:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-25 07:44:27 -0700
commit4b37ba90f49d4157ac5628f8d730d3505f176724 (patch)
treefdb3d04426f7b72ee86b1f06be746624494493c5 /arch/m68knommu/platform/548x/config.c
parent229aebb873e29726b91e076161649cf45154b0bf (diff)
parent55f411de484a0136a77d050e877578a60bc2e094 (diff)
downloadop-kernel-dev-4b37ba90f49d4157ac5628f8d730d3505f176724.zip
op-kernel-dev-4b37ba90f49d4157ac5628f8d730d3505f176724.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (21 commits) m68knommu: convert to using tracehook_report_syscall_* m68knommu: some boards use fixed phy for FEC ethernet m68knommu: support the external GPIO based interrupts of the 5272 m68knommu: mask of vector bits in exception word properly m68knommu: change to new flag variables m68knommu: Fix MCFUART_TXFIFOSIZE for m548x. m68knommu: add basic mmu-less m548x support m68knommu: .gitignore vmlinux.lds m68knommu: stop using __do_IRQ m68knommu: rename PT_OFF_VECTOR to PT_OFF_FORMATVEC. m68knommu: add support for Coldfire 547x/548x interrupt controller m68k{nommu}: Remove unused DEFINE's from asm-offsets.c m68knommu: whitespace cleanup in 68328/entry.S m68knommu: Document supported chips in intc-2.c and intc-simr.c. m68knommu: fix strace support for 68328/68360 m68knommu: fix default starting date arch/m68knommu: Removing dead 68328_SERIAL_UART2 config option arch/m68knommu: Removing dead RAM_{16,32}_MB config option arch/m68knommu: Removing dead M68KFPU_EMU config option arch/m68knommu: Removing dead RELOCATE config option ...
Diffstat (limited to 'arch/m68knommu/platform/548x/config.c')
-rw-r--r--arch/m68knommu/platform/548x/config.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/548x/config.c b/arch/m68knommu/platform/548x/config.c
new file mode 100644
index 0000000..9888846
--- /dev/null
+++ b/arch/m68knommu/platform/548x/config.c
@@ -0,0 +1,115 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/548x/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 <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/m548xsim.h>
+#include <asm/mcfuart.h>
+#include <asm/m548xgpt.h>
+
+/***************************************************************************/
+
+static struct mcf_platform_uart m548x_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 m548x_uart = {
+ .name = "mcfuart",
+ .id = 0,
+ .dev.platform_data = m548x_uart_platform,
+};
+
+static struct platform_device *m548x_devices[] __initdata = {
+ &m548x_uart,
+};
+
+
+/***************************************************************************/
+
+static void __init m548x_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 m548x_uarts_init(void)
+{
+ const int nrlines = ARRAY_SIZE(m548x_uart_platform);
+ int line;
+
+ for (line = 0; (line < nrlines); line++)
+ m548x_uart_init_line(line, m548x_uart_platform[line].irq);
+}
+
+/***************************************************************************/
+
+static void mcf548x_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);
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+ mach_reset = mcf548x_reset;
+ m548x_uarts_init();
+}
+
+/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+
+ platform_add_devices(m548x_devices, ARRAY_SIZE(m548x_devices));
+ return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/
OpenPOWER on IntegriCloud