diff options
Diffstat (limited to 'recipes/linux/linux-2.6.31/pcm043/0008-MXC-Add-a-digital-audio-multiplexer-driver.patch')
| -rw-r--r-- | recipes/linux/linux-2.6.31/pcm043/0008-MXC-Add-a-digital-audio-multiplexer-driver.patch | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/recipes/linux/linux-2.6.31/pcm043/0008-MXC-Add-a-digital-audio-multiplexer-driver.patch b/recipes/linux/linux-2.6.31/pcm043/0008-MXC-Add-a-digital-audio-multiplexer-driver.patch new file mode 100644 index 0000000000..65c7339847 --- /dev/null +++ b/recipes/linux/linux-2.6.31/pcm043/0008-MXC-Add-a-digital-audio-multiplexer-driver.patch @@ -0,0 +1,281 @@ +From 2ff993c8bed5670aab72ef1d7901fe87e753aa54 Mon Sep 17 00:00:00 2001 +From: Sascha Hauer <s.hauer@pengutronix.de> +Date: Thu, 29 Oct 2009 17:12:39 +0100 +Subject: [PATCH 08/28] MXC: Add a digital audio multiplexer driver + +Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> +--- + arch/arm/mach-mx2/Kconfig | 2 + + arch/arm/mach-mx3/Kconfig | 2 + + arch/arm/plat-mxc/Kconfig | 7 +++ + arch/arm/plat-mxc/Makefile | 2 + + arch/arm/plat-mxc/audmux-v1.c | 53 ++++++++++++++++++++++ + arch/arm/plat-mxc/audmux-v2.c | 74 +++++++++++++++++++++++++++++++ + arch/arm/plat-mxc/include/mach/audmux.h | 52 +++++++++++++++++++++ + 7 files changed, 192 insertions(+), 0 deletions(-) + create mode 100644 arch/arm/plat-mxc/audmux-v1.c + create mode 100644 arch/arm/plat-mxc/audmux-v2.c + create mode 100644 arch/arm/plat-mxc/include/mach/audmux.h + +diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig +index c77da58..0d08c34 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 851f245..ffdd211 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 8986b74..995c357 100644 +--- a/arch/arm/plat-mxc/Kconfig ++++ b/arch/arm/plat-mxc/Kconfig +@@ -58,4 +58,11 @@ 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 e3212c8..92fc8b2 100644 +--- a/arch/arm/plat-mxc/Makefile ++++ b/arch/arm/plat-mxc/Makefile +@@ -9,3 +9,5 @@ obj-$(CONFIG_ARCH_MX1) += iomux-mx1-mx2.o dma-mx1-mx2.o + obj-$(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-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o ++obj-$(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 0000000..70ab5af +--- /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 0000000..6f21096 +--- /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 0000000..5cd6466 +--- /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 */ +-- +1.6.5.2 + |