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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-25 07:44:27 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-25 07:44:27 -0700 |
commit | 4b37ba90f49d4157ac5628f8d730d3505f176724 (patch) | |
tree | fdb3d04426f7b72ee86b1f06be746624494493c5 /arch/m68knommu/platform/548x/config.c | |
parent | 229aebb873e29726b91e076161649cf45154b0bf (diff) | |
parent | 55f411de484a0136a77d050e877578a60bc2e094 (diff) | |
download | op-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.c | 115 |
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); + +/***************************************************************************/ |