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author | Greg Ungerer <gerg@uclinux.org> | 2012-04-17 15:35:01 +1000 |
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committer | Greg Ungerer <gerg@uclinux.org> | 2012-05-20 21:22:04 +1000 |
commit | 76148ab8b79e0b40107a96f97e7fd7a0f1f732a1 (patch) | |
tree | 4fd57d3d59d3d7d4d27d0d100ce76a9f93d42b37 /arch/m68k/platform/coldfire/m528x.c | |
parent | 60fb32ca61390360f2cce750ad2715b80e629027 (diff) | |
download | talos-obmc-linux-76148ab8b79e0b40107a96f97e7fd7a0f1f732a1.tar.gz talos-obmc-linux-76148ab8b79e0b40107a96f97e7fd7a0f1f732a1.zip |
m68knommu: move the 528x platform code into the common ColdFire code directory
All these separate directories for each ColdFire CPU SoC varient seems like
overkill. The majority of them only contain a single small config file. Move
these into the common ColdFire code directory.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/platform/coldfire/m528x.c')
-rw-r--r-- | arch/m68k/platform/coldfire/m528x.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/m528x.c b/arch/m68k/platform/coldfire/m528x.c new file mode 100644 index 000000000000..7ed1276b29dc --- /dev/null +++ b/arch/m68k/platform/coldfire/m528x.c @@ -0,0 +1,137 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/528x/config.c + * + * Sub-architcture dependent initialization code for the Freescale + * 5280, 5281 and 5282 CPUs. + * + * Copyright (C) 1999-2003, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com) + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/platform_device.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[] = { + MCFGPS(NQ, 1, 7, MCFEPORT_EPDDR, MCFEPORT_EPDR, MCFEPORT_EPPDR), + MCFGPS(TA, 8, 4, MCFGPTA_GPTDDR, MCFGPTA_GPTPORT, MCFGPTB_GPTPORT), + MCFGPS(TB, 16, 4, MCFGPTB_GPTDDR, MCFGPTB_GPTPORT, MCFGPTB_GPTPORT), + MCFGPS(QA, 24, 4, MCFQADC_DDRQA, MCFQADC_PORTQA, MCFQADC_PORTQA), + MCFGPS(QB, 32, 4, MCFQADC_DDRQB, MCFQADC_PORTQB, MCFQADC_PORTQB), + MCFGPF(A, 40, 8), + MCFGPF(B, 48, 8), + MCFGPF(C, 56, 8), + MCFGPF(D, 64, 8), + MCFGPF(E, 72, 8), + MCFGPF(F, 80, 8), + MCFGPF(G, 88, 8), + MCFGPF(H, 96, 8), + MCFGPF(J, 104, 8), + MCFGPF(DD, 112, 8), + MCFGPF(EH, 120, 8), + MCFGPF(EL, 128, 8), + MCFGPF(AS, 136, 6), + MCFGPF(QS, 144, 7), + MCFGPF(SD, 152, 6), + MCFGPF(TC, 160, 4), + MCFGPF(TD, 168, 4), + MCFGPF(UA, 176, 4), +}; + +unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips); + +/***************************************************************************/ + +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) + +static void __init m528x_qspi_init(void) +{ + /* setup Port QS for QSPI with gpio CS control */ + __raw_writeb(0x07, MCFGPIO_PQSPAR); +} + +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ + +/***************************************************************************/ + +static void __init m528x_uarts_init(void) +{ + u8 port; + + /* make sure PUAPAR is set for UART0 and UART1 */ + port = readb(MCF5282_GPIO_PUAPAR); + port |= 0x03 | (0x03 << 2); + writeb(port, MCF5282_GPIO_PUAPAR); +} + +/***************************************************************************/ + +static void __init m528x_fec_init(void) +{ + u16 v16; + + /* Set multi-function pins to ethernet mode for fec0 */ + v16 = readw(MCF_IPSBAR + 0x100056); + writew(v16 | 0xf00, MCF_IPSBAR + 0x100056); + writeb(0xc0, MCF_IPSBAR + 0x100058); +} + +/***************************************************************************/ + +#ifdef CONFIG_WILDFIRE +void wildfire_halt(void) +{ + writeb(0, 0x30000007); + writeb(0x2, 0x30000007); +} +#endif + +#ifdef CONFIG_WILDFIREMOD +void wildfiremod_halt(void) +{ + printk(KERN_INFO "WildFireMod hibernating...\n"); + + /* Set portE.5 to Digital IO */ + MCF5282_GPIO_PEPAR &= ~(1 << (5 * 2)); + + /* Make portE.5 an output */ + MCF5282_GPIO_DDRE |= (1 << 5); + + /* Now toggle portE.5 from low to high */ + MCF5282_GPIO_PORTE &= ~(1 << 5); + MCF5282_GPIO_PORTE |= (1 << 5); + + printk(KERN_EMERG "Failed to hibernate. Halting!\n"); +} +#endif + +void __init config_BSP(char *commandp, int size) +{ +#ifdef CONFIG_WILDFIRE + mach_halt = wildfire_halt; +#endif +#ifdef CONFIG_WILDFIREMOD + mach_halt = wildfiremod_halt; +#endif + mach_sched_init = hw_timer_init; + m528x_uarts_init(); + m528x_fec_init(); +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) + m528x_qspi_init(); +#endif +} + +/***************************************************************************/ |