diff options
| -rw-r--r-- | arch/arm/mach-mx2/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mx3/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/Kconfig | 7 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/audmux-v1.c | 53 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/audmux-v2.c | 74 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/audmux.h | 52 |
7 files changed, 192 insertions, 0 deletions
diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig index c8a2eac4d13c..3e14da3698b5 100644 --- a/arch/arm/mach-mx2/Kconfig +++ b/arch/arm/mach-mx2/Kconfig @@ -6,11 +6,13 @@ choice config MACH_MX21 bool "i.MX21 support" + select ARCH_MXC_AUDMUX_V1 help This enables support for Freescale's MX2 based i.MX21 processor. config MACH_MX27 bool "i.MX27 support" + select ARCH_MXC_AUDMUX_V1 help This enables support for Freescale's MX2 based i.MX27 processor. diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig index 851f2458bf65..ffdd211e3535 100644 --- a/arch/arm/mach-mx3/Kconfig +++ b/arch/arm/mach-mx3/Kconfig @@ -2,11 +2,13 @@ if ARCH_MX3 config ARCH_MX31 select ARCH_HAS_RNGA + select ARCH_MXC_AUDMUX_V2 bool config ARCH_MX35 bool select ARCH_MXC_IOMUX_V3 + select ARCH_MXC_AUDMUX_V2 comment "MX3 platforms:" diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig index e8e92cbd108c..8b0a1ee039fa 100644 --- a/arch/arm/plat-mxc/Kconfig +++ b/arch/arm/plat-mxc/Kconfig @@ -78,4 +78,11 @@ config ARCH_HAS_RNGA config ARCH_MXC_IOMUX_V3 bool + +config ARCH_MXC_AUDMUX_V1 + bool + +config ARCH_MXC_AUDMUX_V2 + bool + endif diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile index 545412f81831..4cbca9da1505 100644 --- a/arch/arm/plat-mxc/Makefile +++ b/arch/arm/plat-mxc/Makefile @@ -10,3 +10,5 @@ obj-$(CONFIG_ARCH_MX2) += iomux-mx1-mx2.o dma-mx1-mx2.o obj-$(CONFIG_ARCH_MXC_IOMUX_V3) += iomux-v3.o obj-$(CONFIG_MXC_PWM) += pwm.o obj-$(CONFIG_MXC_ULPI) += ulpi.o +obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o +obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o diff --git a/arch/arm/plat-mxc/audmux-v1.c b/arch/arm/plat-mxc/audmux-v1.c new file mode 100644 index 000000000000..70ab5aff2b9e --- /dev/null +++ b/arch/arm/plat-mxc/audmux-v1.c @@ -0,0 +1,53 @@ +/* + * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de> + * + * Initial development of this code was funded by + * Phytec Messtechnik GmbH, http://www.phytec.de + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <mach/audmux.h> +#include <mach/hardware.h> + +static void __iomem *audmux_base; + +#define MXC_AUDMUX_V1_PCR(x) ((x) * 4) + +int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr) +{ + if (!audmux_base) { + printk("%s: not configured\n", __func__); + return -ENOSYS; + } + + writel(pcr, audmux_base + MXC_AUDMUX_V1_PCR(port)); + + return 0; +} +EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port); + +static int mxc_audmux_v1_init(void) +{ + if (cpu_is_mx27() || cpu_is_mx21()) + audmux_base = IO_ADDRESS(AUDMUX_BASE_ADDR); + return 0; +} + +postcore_initcall(mxc_audmux_v1_init); diff --git a/arch/arm/plat-mxc/audmux-v2.c b/arch/arm/plat-mxc/audmux-v2.c new file mode 100644 index 000000000000..6f21096086fd --- /dev/null +++ b/arch/arm/plat-mxc/audmux-v2.c @@ -0,0 +1,74 @@ +/* + * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de> + * + * Initial development of this code was funded by + * Phytec Messtechnik GmbH, http://www.phytec.de + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <mach/audmux.h> +#include <mach/hardware.h> + +static struct clk *audmux_clk; +static void __iomem *audmux_base; + +#define MXC_AUDMUX_V2_PTCR(x) ((x) * 8) +#define MXC_AUDMUX_V2_PDCR(x) ((x) * 8 + 4) + +int mxc_audmux_v2_configure_port(unsigned int port, unsigned int ptcr, + unsigned int pdcr) +{ + if (!audmux_base) + return -ENOSYS; + + if (audmux_clk) + clk_enable(audmux_clk); + + writel(ptcr, audmux_base + MXC_AUDMUX_V2_PTCR(port)); + writel(pdcr, audmux_base + MXC_AUDMUX_V2_PDCR(port)); + + if (audmux_clk) + clk_disable(audmux_clk); + + return 0; +} +EXPORT_SYMBOL_GPL(mxc_audmux_v2_configure_port); + +static int mxc_audmux_v2_init(void) +{ + int ret; + + if (cpu_is_mx35()) { + audmux_clk = clk_get(NULL, "audmux"); + if (IS_ERR(audmux_clk)) { + ret = PTR_ERR(audmux_clk); + printk(KERN_ERR "%s: cannot get clock: %d\n", __func__, + ret); + return ret; + } + } + + if (cpu_is_mx31() || cpu_is_mx35()) + audmux_base = IO_ADDRESS(AUDMUX_BASE_ADDR); + + return 0; +} + +postcore_initcall(mxc_audmux_v2_init); diff --git a/arch/arm/plat-mxc/include/mach/audmux.h b/arch/arm/plat-mxc/include/mach/audmux.h new file mode 100644 index 000000000000..5cd6466964af --- /dev/null +++ b/arch/arm/plat-mxc/include/mach/audmux.h @@ -0,0 +1,52 @@ +#ifndef __MACH_AUDMUX_H +#define __MACH_AUDMUX_H + +#define MX27_AUDMUX_HPCR1_SSI0 0 +#define MX27_AUDMUX_HPCR2_SSI1 1 +#define MX27_AUDMUX_HPCR3_SSI_PINS_4 2 +#define MX27_AUDMUX_PPCR1_SSI_PINS_1 3 +#define MX27_AUDMUX_PPCR2_SSI_PINS_2 4 +#define MX27_AUDMUX_PPCR3_SSI_PINS_3 5 + +#define MX31_AUDMUX_PORT1_SSI0 0 +#define MX31_AUDMUX_PORT2_SSI1 1 +#define MX31_AUDMUX_PORT3_SSI_PINS_3 2 +#define MX31_AUDMUX_PORT4_SSI_PINS_4 3 +#define MX31_AUDMUX_PORT5_SSI_PINS_5 4 +#define MX31_AUDMUX_PORT6_SSI_PINS_6 5 + +/* Register definitions for the i.MX21/27 Digital Audio Multiplexer */ +#define MXC_AUDMUX_V1_PCR_INMMASK(x) ((x) & 0xff) +#define MXC_AUDMUX_V1_PCR_INMEN (1 << 8) +#define MXC_AUDMUX_V1_PCR_TXRXEN (1 << 10) +#define MXC_AUDMUX_V1_PCR_SYN (1 << 12) +#define MXC_AUDMUX_V1_PCR_RXDSEL(x) (((x) & 0x7) << 13) +#define MXC_AUDMUX_V1_PCR_RFCSEL(x) (((x) & 0xf) << 20) +#define MXC_AUDMUX_V1_PCR_RCLKDIR (1 << 24) +#define MXC_AUDMUX_V1_PCR_RFSDIR (1 << 25) +#define MXC_AUDMUX_V1_PCR_TFCSEL(x) (((x) & 0xf) << 26) +#define MXC_AUDMUX_V1_PCR_TCLKDIR (1 << 30) +#define MXC_AUDMUX_V1_PCR_TFSDIR (1 << 31) + +/* Register definitions for the i.MX25/31/35 Digital Audio Multiplexer */ +#define MXC_AUDMUX_V2_PTCR_TFSDIR (1 << 31) +#define MXC_AUDMUX_V2_PTCR_TFSEL(x) (((x) & 0xf) << 27) +#define MXC_AUDMUX_V2_PTCR_TCLKDIR (1 << 26) +#define MXC_AUDMUX_V2_PTCR_TCSEL(x) (((x) & 0xf) << 22) +#define MXC_AUDMUX_V2_PTCR_RFSDIR (1 << 21) +#define MXC_AUDMUX_V2_PTCR_RFSEL(x) (((x) & 0xf) << 17) +#define MXC_AUDMUX_V2_PTCR_RCLKDIR (1 << 16) +#define MXC_AUDMUX_V2_PTCR_RCSEL(x) (((x) & 0xf) << 12) +#define MXC_AUDMUX_V2_PTCR_SYN (1 << 11) + +#define MXC_AUDMUX_V2_PDCR_RXDSEL(x) (((x) & 0x7) << 13) +#define MXC_AUDMUX_V2_PDCR_TXRXEN (1 << 12) +#define MXC_AUDMUX_V2_PDCR_MODE(x) (((x) & 0x3) << 8) +#define MXC_AUDMUX_V2_PDCR_INMMASK(x) ((x) & 0xff) + +int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr); + +int mxc_audmux_v2_configure_port(unsigned int port, unsigned int ptcr, + unsigned int pdcr); + +#endif /* __MACH_AUDMUX_H */ |
