diff options
Diffstat (limited to 'arch/m68k/platform/coldfire/m527x.c')
| -rw-r--r-- | arch/m68k/platform/coldfire/m527x.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/m527x.c b/arch/m68k/platform/coldfire/m527x.c new file mode 100644 index 000000000000..9b0b66aabd1b --- /dev/null +++ b/arch/m68k/platform/coldfire/m527x.c @@ -0,0 +1,141 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/527x/config.c + * + * Sub-architcture dependent initialization code for the Freescale + * 5270/5271 CPUs. + * + * Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/io.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfuart.h> +#include <asm/mcfgpio.h> + +/***************************************************************************/ + +struct mcf_gpio_chip mcf_gpio_chips[] = { +#if defined(CONFIG_M5271) + MCFGPS(PIRQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), + MCFGPF(ADDR, 13, 3), + MCFGPF(DATAH, 16, 8), + MCFGPF(DATAL, 24, 8), + MCFGPF(BUSCTL, 32, 8), + MCFGPF(BS, 40, 4), + MCFGPF(CS, 49, 7), + MCFGPF(SDRAM, 56, 6), + MCFGPF(FECI2C, 64, 4), + MCFGPF(UARTH, 72, 2), + MCFGPF(UARTL, 80, 8), + MCFGPF(QSPI, 88, 5), + MCFGPF(TIMER, 96, 8), +#elif defined(CONFIG_M5275) + MCFGPS(PIRQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), + MCFGPF(BUSCTL, 8, 8), + MCFGPF(ADDR, 21, 3), + MCFGPF(CS, 25, 7), + MCFGPF(FEC0H, 32, 8), + MCFGPF(FEC0L, 40, 8), + MCFGPF(FECI2C, 48, 6), + MCFGPF(QSPI, 56, 7), + MCFGPF(SDRAM, 64, 8), + MCFGPF(TIMERH, 72, 4), + MCFGPF(TIMERL, 80, 4), + MCFGPF(UARTL, 88, 8), + MCFGPF(FEC1H, 96, 8), + MCFGPF(FEC1L, 104, 8), + MCFGPF(BS, 114, 2), + MCFGPF(IRQ, 121, 7), + MCFGPF(USBH, 128, 1), + MCFGPF(USBL, 136, 8), + MCFGPF(UARTH, 144, 4), +#endif +}; + +unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); + +/***************************************************************************/ + +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) + +static void __init m527x_qspi_init(void) +{ +#if defined(CONFIG_M5271) + u16 par; + + /* setup QSPS pins for QSPI with gpio CS control */ + writeb(0x1f, MCFGPIO_PAR_QSPI); + /* and CS2 & CS3 as gpio */ + par = readw(MCFGPIO_PAR_TIMER); + par &= 0x3f3f; + writew(par, MCFGPIO_PAR_TIMER); +#elif defined(CONFIG_M5275) + /* setup QSPS pins for QSPI with gpio CS control */ + writew(0x003e, MCFGPIO_PAR_QSPI); +#endif +} + +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ + +/***************************************************************************/ + +static void __init m527x_uarts_init(void) +{ + u16 sepmask; + + /* + * External Pin Mask Setting & Enable External Pin for Interface + */ + sepmask = readw(MCF_IPSBAR + MCF_GPIO_PAR_UART); + sepmask |= UART0_ENABLE_MASK | UART1_ENABLE_MASK | UART2_ENABLE_MASK; + writew(sepmask, MCF_IPSBAR + MCF_GPIO_PAR_UART); +} + +/***************************************************************************/ + +static void __init m527x_fec_init(void) +{ + u16 par; + u8 v; + + /* Set multi-function pins to ethernet mode for fec0 */ +#if defined(CONFIG_M5271) + v = readb(MCF_IPSBAR + 0x100047); + writeb(v | 0xf0, MCF_IPSBAR + 0x100047); +#else + par = readw(MCF_IPSBAR + 0x100082); + writew(par | 0xf00, MCF_IPSBAR + 0x100082); + v = readb(MCF_IPSBAR + 0x100078); + writeb(v | 0xc0, MCF_IPSBAR + 0x100078); + + /* Set multi-function pins to ethernet mode for fec1 */ + par = readw(MCF_IPSBAR + 0x100082); + writew(par | 0xa0, MCF_IPSBAR + 0x100082); + v = readb(MCF_IPSBAR + 0x100079); + writeb(v | 0xc0, MCF_IPSBAR + 0x100079); +#endif +} + +/***************************************************************************/ + +void __init config_BSP(char *commandp, int size) +{ + mach_sched_init = hw_timer_init; + m527x_uarts_init(); + m527x_fec_init(); +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) + m527x_qspi_init(); +#endif +} + +/***************************************************************************/ |