diff options
Diffstat (limited to 'arch/m68knommu/platform')
| -rw-r--r-- | arch/m68knommu/platform/527x/config.c | 87 |
1 files changed, 78 insertions, 9 deletions
diff --git a/arch/m68knommu/platform/527x/config.c b/arch/m68knommu/platform/527x/config.c index 9cbfbc68ae4..73cd1aef4a9 100644 --- a/arch/m68knommu/platform/527x/config.c +++ b/arch/m68knommu/platform/527x/config.c @@ -16,11 +16,11 @@ #include <linux/param.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <asm/dma.h> +#include <linux/io.h> #include <asm/machdep.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> -#include <asm/mcfdma.h> +#include <asm/mcfuart.h> /***************************************************************************/ @@ -28,14 +28,72 @@ void coldfire_reset(void); /***************************************************************************/ -/* - * DMA channel base address table. - */ -unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { - MCF_MBAR + MCFDMA_BASE0, +static struct mcf_platform_uart m527x_uart_platform[] = { + { + .mapbase = MCF_MBAR + MCFUART_BASE1, + .irq = MCFINT_VECBASE + MCFINT_UART0, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE2, + .irq = MCFINT_VECBASE + MCFINT_UART1, + }, + { + .mapbase = MCF_MBAR + MCFUART_BASE3, + .irq = MCFINT_VECBASE + MCFINT_UART2, + }, + { }, }; -unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; +static struct platform_device m527x_uart = { + .name = "mcfuart", + .id = 0, + .dev.platform_data = m527x_uart_platform, +}; + +static struct platform_device *m527x_devices[] __initdata = { + &m527x_uart, +}; + +/***************************************************************************/ + +#define INTC0 (MCF_MBAR + MCFICM_INTC0) + +static void __init m527x_uart_init_line(int line, int irq) +{ + u16 sepmask; + u32 imr; + + if ((line < 0) || (line > 2)) + return; + + /* level 6, line based priority */ + writeb(0x30+line, INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line); + + imr = readl(INTC0 + MCFINTC_IMRL); + imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1); + writel(imr, INTC0 + MCFINTC_IMRL); + + /* + * External Pin Mask Setting & Enable External Pin for Interface + */ + sepmask = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); + if (line == 0) + sepmask |= UART0_ENABLE_MASK; + else if (line == 1) + sepmask |= UART1_ENABLE_MASK; + else if (line == 2) + sepmask |= UART2_ENABLE_MASK; + writew(sepmask, MCF_IPSBAR + MCF_GPIO_PAR_UART); +} + +static void __init m527x_uarts_init(void) +{ + const int nrlines = ARRAY_SIZE(m527x_uart_platform); + int line; + + for (line = 0; (line < nrlines); line++) + m527x_uart_init_line(line, m527x_uart_platform[line].irq); +} /***************************************************************************/ @@ -54,10 +112,21 @@ void mcf_autovector(unsigned int vec) /***************************************************************************/ -void config_BSP(char *commandp, int size) +void __init config_BSP(char *commandp, int size) { mcf_disableall(); mach_reset = coldfire_reset; } /***************************************************************************/ + +static int __init init_BSP(void) +{ + m527x_uarts_init(); + platform_add_devices(m527x_devices, ARRAY_SIZE(m527x_devices)); + return 0; +} + +arch_initcall(init_BSP); + +/***************************************************************************/ |