On Mon, Oct 03, 2016 at 07:40:41AM -0700, Andrey Smirnov wrote:
> Add support for VF610 Tower board.
>
> Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> ---
> arch/arm/boards/Makefile | 3 +-
> arch/arm/boards/freescale-vf610-twr/Makefile | 4 +
> arch/arm/boards/freescale-vf610-twr/board.c | 61 +++++
> .../flash-header-vf610-twr.imxcfg | 277 +++++++++++++++++++++
> arch/arm/boards/freescale-vf610-twr/lowlevel.c | 45 ++++
> arch/arm/dts/Makefile | 1 +
> arch/arm/dts/vf610-twr.dts | 14 ++
> arch/arm/mach-imx/Kconfig | 4 +
> arch/arm/mach-imx/include/mach/clock-vf610.h | 215 ++++++++++++++++
> arch/arm/mach-imx/include/mach/iomux-vf610.h | 258 +++++++++++++++++++
> images/Makefile.imx | 5 +
> 11 files changed, 886 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boards/freescale-vf610-twr/Makefile
> create mode 100644 arch/arm/boards/freescale-vf610-twr/board.c
> create mode 100644 arch/arm/boards/freescale-vf610-twr/flash-header-vf610-twr.imxcfg
> create mode 100644 arch/arm/boards/freescale-vf610-twr/lowlevel.c
> create mode 100644 arch/arm/dts/vf610-twr.dts
> create mode 100644 arch/arm/mach-imx/include/mach/clock-vf610.h
> create mode 100644 arch/arm/mach-imx/include/mach/iomux-vf610.h
>
> diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile
> index 23a8dbd..c8bc565 100644
> --- a/arch/arm/boards/Makefile
> +++ b/arch/arm/boards/Makefile
> @@ -10,7 +10,7 @@ obj-$(CONFIG_MACH_AT91SAM9G20EK) += at91sam9260ek/
> obj-$(CONFIG_MACH_AT91SAM9M10G45EK) += at91sam9m10g45ek/
> obj-$(CONFIG_MACH_AT91SAM9M10IHD) += at91sam9m10ihd/
> obj-$(CONFIG_MACH_AT91SAM9N12EK) += at91sam9n12ek/
> -obj-$(CONFIG_MACH_AT91SAM9X5EK) += at91sam9x5ek/
> +nobj-$(CONFIG_MACH_AT91SAM9X5EK) += at91sam9x5ek/
> obj-$(CONFIG_MACH_BEAGLE) += beagle/
> obj-$(CONFIG_MACH_BEAGLEBONE) += beaglebone/
> obj-$(CONFIG_MACH_CANON_A1100) += canon-a1100/
> @@ -138,3 +138,4 @@ obj-$(CONFIG_MACH_ZEDBOARD) += avnet-zedboard/
> obj-$(CONFIG_MACH_ZYLONITE) += zylonite/
> obj-$(CONFIG_MACH_VARISCITE_MX6) += variscite-mx6/
> obj-$(CONFIG_MACH_QEMU_VIRT64) += qemu-virt64/
> +obj-$(CONFIG_MACH_VF610_TWR) += freescale-vf610-twr/
> diff --git a/arch/arm/boards/freescale-vf610-twr/Makefile b/arch/arm/boards/freescale-vf610-twr/Makefile
> new file mode 100644
> index 0000000..32a7da5
> --- /dev/null
> +++ b/arch/arm/boards/freescale-vf610-twr/Makefile
> @@ -0,0 +1,4 @@
> +obj-y += board.o
> +obj-y += flash-header-vf610-twr.dcd.o
> +extra-y += flash-header-vf610-twr.dcd.S flash-header-vf610-twr.dcd
> +lwl-y += lowlevel.o
> diff --git a/arch/arm/boards/freescale-vf610-twr/board.c b/arch/arm/boards/freescale-vf610-twr/board.c
> new file mode 100644
> index 0000000..0879f74
> --- /dev/null
> +++ b/arch/arm/boards/freescale-vf610-twr/board.c
> @@ -0,0 +1,61 @@
> +/*
> + * Copyright (c) 2016 Zodiac Inflight Innovation
> + * Author: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2
> + * as published by the Free Software Foundation.
> + *
> + * 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.
> + *
> + */
> +
> +#include <config.h>
> +#include <common.h>
> +#include <dma.h>
> +#include <driver.h>
> +#include <init.h>
> +#include <of.h>
> +#include <malloc.h>
> +#include <mci.h>
> +#include <clock.h>
> +#include <io.h>
> +#include <linux/clk.h>
> +#include <linux/err.h>
> +
> +/*
> + * Make sure that esdhc1's clock divider is 1
> + */
> +static int vf610_twr_sdhc1_clock_init(void)
> +{
> + int err;
> + struct clk *esdhc1_div, *esdhc1_div_parent;
> +
> + if (!of_machine_is_compatible("fsl,vf610-twr"))
> + return 0;
> +
> + esdhc1_div = clk_lookup("esdhc1_div");
> +
> + if (IS_ERR(esdhc1_div))
> + return PTR_ERR(esdhc1_div);
> +
> + esdhc1_div_parent = clk_get_parent(esdhc1_div);
> + if (IS_ERR(esdhc1_div_parent))
> + return PTR_ERR(esdhc1_div_parent);
> +
> + err = clk_set_rate(esdhc1_div,
> + clk_get_rate(esdhc1_div_parent));
> + if (err)
> + return err;
> +
> + clk_put(esdhc1_div);
> +
> + return 0;
> +}
> +coredevice_initcall(vf610_twr_sdhc1_clock_init);
What's the background for this? Should it be made SoC specific?
> diff --git a/arch/arm/boards/freescale-vf610-twr/flash-header-vf610-twr.imxcfg b/arch/arm/boards/freescale-vf610-twr/flash-header-vf610-twr.imxcfg
> new file mode 100644
> index 0000000..18138d2
> --- /dev/null
> +++ b/arch/arm/boards/freescale-vf610-twr/flash-header-vf610-twr.imxcfg
> @@ -0,0 +1,277 @@
> +soc vf610
> +loadaddr 0x80000000
> +dcdofs 0x400
> +
> +#define VF610_DDR_PAD_CTRL 0x00000180 /* 25 Ohm drive strength */
> +#define VF610_DDR_PAD_CTRL_1 0x00010180 /* 25 Ohm drive strength + differential input */
> +
> +#define DDRMC_PHY_DQ_TIMING 0x00002613
> +#define DDRMC_PHY_DQS_TIMING 0x00002615
> +#define DDRMC_PHY_CTRL 0x00210000
> +#define DDRMC_PHY_MASTER_CTRL 0x0001012a
> +#define DDRMC_PHY_SLAVE_CTRL 0x00002000
> +#define DDRMC_PHY_OFF 0x00000000
> +#define DDRMC_PHY_PROC_PAD_ODT 0x00010101
> +
> +#ifdef DEBUG
> +#define CHECKPOINT(n) wm 32 0x3f000000 n
> +#else
> +#define CHECKPOINT(n)
> +#endif
> +
> +CHECKPOINT(1)
> +
> +/* ======================= Clock initialization =======================*/
> +
> +/*
> + * Ungate all IP block clocks
> + */
> +wm 32 0x4006b040 0xffffffff
> +wm 32 0x4006b044 0xffffffff
> +wm 32 0x4006b048 0xffffffff
> +wm 32 0x4006b04c 0xffffffff
> +wm 32 0x4006b050 0xffffffff
> +wm 32 0x4006b058 0xffffffff
> +wm 32 0x4006b05c 0xffffffff
> +wm 32 0x4006b060 0xffffffff
> +wm 32 0x4006b064 0xffffffff
> +wm 32 0x4006b068 0xffffffff
> +wm 32 0x4006b06c 0xffffffff
> +
> +
> +/*
> + * We have to options to clock DDR controller:
> + *
> + * - Use Core-A5 clock
> + * - Use PLL2 PFD2 clock
> + *
> +
> + * Using first option without changing PLL settings doesn't seem to be
> + * possible given that DDRMC requires minimum of 300Mhz and MaskROM
> + * configures it to be clocked at 264Mhz. Changing PLL1 settings
> + * proved to be challenging becuase MaskROM code executing this DCD
> + * will also be fetching the rest of the bootloader via some
> + * peripheral interface whose clock is derived from Cortex-A5 clock.
> + *
> + * As a result this DCD configuration code uses the second option of
> + * clocking DDR wiht PLL2 PFD2 clock output
> + *
> + * Turn PLL2 on
> + */
> +wm 32 0x40050030 0x00002001 /* Fout = Fin * 22 */
> +
> +CHECKPOINT(2)
> +
> +/*
> + * Wait for PLLs to lock
> + */
> +check 32 while_any_bit_clear 0x40050030 0x80000000
> +
> +
> +CHECKPOINT(3)
> +
> +/*
> + * Switch DDRMC to be clocked with PLL2 PFD2 and enable PFD2 output
> + */
> +clear_bits 32 0x4006b008 0x00000040
> +set_bits 32 0x4006b008 0x00002000
> +
> +
> +
> +/* ======================= DDR IOMUX ======================= */
> +
> +CHECKPOINT(4)
> +
> +wm 32 0x40048220 VF610_DDR_PAD_CTRL
> +wm 32 0x40048224 VF610_DDR_PAD_CTRL
> +wm 32 0x40048228 VF610_DDR_PAD_CTRL
> +wm 32 0x4004822c VF610_DDR_PAD_CTRL
> +wm 32 0x40048230 VF610_DDR_PAD_CTRL
> +wm 32 0x40048234 VF610_DDR_PAD_CTRL
> +wm 32 0x40048238 VF610_DDR_PAD_CTRL
> +wm 32 0x4004823c VF610_DDR_PAD_CTRL
> +wm 32 0x40048240 VF610_DDR_PAD_CTRL
> +wm 32 0x40048244 VF610_DDR_PAD_CTRL
> +wm 32 0x40048248 VF610_DDR_PAD_CTRL
> +wm 32 0x4004824c VF610_DDR_PAD_CTRL
> +wm 32 0x40048250 VF610_DDR_PAD_CTRL
> +wm 32 0x40048254 VF610_DDR_PAD_CTRL
> +wm 32 0x40048258 VF610_DDR_PAD_CTRL
> +wm 32 0x4004825c VF610_DDR_PAD_CTRL
> +wm 32 0x40048260 VF610_DDR_PAD_CTRL
> +wm 32 0x40048264 VF610_DDR_PAD_CTRL
> +wm 32 0x40048268 VF610_DDR_PAD_CTRL
> +wm 32 0x4004826c VF610_DDR_PAD_CTRL
> +wm 32 0x40048270 VF610_DDR_PAD_CTRL
> +wm 32 0x40048274 VF610_DDR_PAD_CTRL
> +wm 32 0x40048278 VF610_DDR_PAD_CTRL
> +wm 32 0x4004827c VF610_DDR_PAD_CTRL_1
> +wm 32 0x40048280 VF610_DDR_PAD_CTRL_1
> +wm 32 0x40048284 VF610_DDR_PAD_CTRL_1
> +wm 32 0x40048288 VF610_DDR_PAD_CTRL_1
> +wm 32 0x4004828c VF610_DDR_PAD_CTRL_1
> +wm 32 0x40048290 VF610_DDR_PAD_CTRL_1
> +wm 32 0x40048294 VF610_DDR_PAD_CTRL_1
> +wm 32 0x40048298 VF610_DDR_PAD_CTRL_1
> +wm 32 0x4004829c VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482a0 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482a4 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482a8 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482ac VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482b0 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482b4 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482b8 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482bc VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482c0 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482c4 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482c8 VF610_DDR_PAD_CTRL_1
> +wm 32 0x400482cc VF610_DDR_PAD_CTRL
> +wm 32 0x400482d0 VF610_DDR_PAD_CTRL
> +wm 32 0x400482d4 VF610_DDR_PAD_CTRL
> +wm 32 0x400482d8 VF610_DDR_PAD_CTRL
> +wm 32 0x4004821c VF610_DDR_PAD_CTRL
> +
> +/* ======================= DDR Controller =======================*/
> +
> +CHECKPOINT(5)
> +
> +wm 32 0x400ae000 0x00000600
> +wm 32 0x400ae008 0x00000020
> +wm 32 0x400ae028 0x00013880
> +wm 32 0x400ae02c 0x00030d40
> +wm 32 0x400ae030 0x0000050c
> +wm 32 0x400ae034 0x15040400
> +wm 32 0x400ae038 0x1406040f
> +wm 32 0x400ae040 0x04040000
> +wm 32 0x400ae044 0x006db00c
> +wm 32 0x400ae048 0x00000403
> +wm 32 0x400ae050 0x01000000
> +wm 32 0x400ae054 0x00060001
> +wm 32 0x400ae058 0x000c0000
> +wm 32 0x400ae05c 0x03000200
> +wm 32 0x400ae060 0x00000006
> +wm 32 0x400ae064 0x00010000
> +wm 32 0x400ae068 0x0c30002c
> +wm 32 0x400ae070 0x00000000
> +wm 32 0x400ae074 0x00000003
> +wm 32 0x400ae078 0x0000000a
> +wm 32 0x400ae07c 0x003001d4
> +wm 32 0x400ae084 0x00010000
> +wm 32 0x400ae088 0x00050500
> +wm 32 0x400ae098 0x00000000
> +wm 32 0x400ae09c 0x04001002
> +wm 32 0x400ae0a4 0x00000001
> +wm 32 0x400ae0c0 0x00460420
> +wm 32 0x400ae108 0x01000200
> +wm 32 0x400ae10c 0x00000040
> +wm 32 0x400ae114 0x00000200
> +wm 32 0x400ae118 0x00000040
> +wm 32 0x400ae120 0x00000000
> +wm 32 0x400ae124 0x0a010300
> +wm 32 0x400ae128 0x01014040
> +wm 32 0x400ae12c 0x01010101
> +wm 32 0x400ae130 0x03030100
> +wm 32 0x400ae134 0x01000101
> +wm 32 0x400ae138 0x0700000c
> +wm 32 0x400ae13c 0x00000000
> +wm 32 0x400ae148 0x10000000
> +wm 32 0x400ae15c 0x01000000
> +wm 32 0x400ae160 0x00040000
> +wm 32 0x400ae164 0x00000002
> +wm 32 0x400ae16c 0x00020000
> +wm 32 0x400ae180 0x00002819
> +wm 32 0x400ae184 0x01000000
> +wm 32 0x400ae188 0x00000000
> +wm 32 0x400ae18c 0x00000000
> +wm 32 0x400ae198 0x00010100
> +wm 32 0x400ae1a4 0x00000000
> +wm 32 0x400ae1a8 0x00000004
> +wm 32 0x400ae1b8 0x00040000
> +wm 32 0x400ae1c8 0x00000000
> +wm 32 0x400ae1cc 0x00000000
> +wm 32 0x400ae1d4 0x00000000
> +wm 32 0x400ae1d8 0x01010000
> +wm 32 0x400ae1e0 0x02020000
> +wm 32 0x400ae1e4 0x00000202
> +wm 32 0x400ae1e8 0x01010064
> +wm 32 0x400ae1ec 0x00010101
> +wm 32 0x400ae1f0 0x00000064
> +wm 32 0x400ae1f8 0x00000800
> +wm 32 0x400ae210 0x00000506
> +wm 32 0x400ae224 0x00020000
> +wm 32 0x400ae228 0x01000000
> +wm 32 0x400ae22c 0x04070303
> +wm 32 0x400ae230 0x00000040
> +wm 32 0x400ae23c 0x06000080
> +wm 32 0x400ae240 0x04070303
> +wm 32 0x400ae244 0x00000040
> +wm 32 0x400ae248 0x00000040
> +wm 32 0x400ae24c 0x000f0000
> +wm 32 0x400ae250 0x000f0000
> +wm 32 0x400ae25c 0x00000101
> +wm 32 0x400ae268 0x682c4000
> +wm 32 0x400ae26c 0x00000012
> +wm 32 0x400ae278 0x00000006
> +wm 32 0x400ae284 0x00010202
> +
> +/* ======================= DDR PHY =======================*/
> +
> +CHECKPOINT(6)
> +
> +wm 32 0x400ae400 DDRMC_PHY_DQ_TIMING
> +wm 32 0x400ae440 DDRMC_PHY_DQ_TIMING
> +wm 32 0x400ae480 DDRMC_PHY_DQ_TIMING
> +wm 32 0x400ae404 DDRMC_PHY_DQS_TIMING
> +wm 32 0x400ae444 DDRMC_PHY_DQS_TIMING
> +wm 32 0x400ae408 DDRMC_PHY_CTRL
> +wm 32 0x400ae448 DDRMC_PHY_CTRL
> +wm 32 0x400ae488 DDRMC_PHY_CTRL
> +wm 32 0x400ae40c DDRMC_PHY_CTRL
> +wm 32 0x400ae44c DDRMC_PHY_CTRL
> +wm 32 0x400ae48c DDRMC_PHY_CTRL
> +wm 32 0x400ae410 DDRMC_PHY_SLAVE_CTRL
> +wm 32 0x400ae450 DDRMC_PHY_SLAVE_CTRL
> +wm 32 0x400ae490 DDRMC_PHY_SLAVE_CTRL
> +wm 32 0x400ae4c4 DDRMC_PHY_OFF
> +wm 32 0x400ae4c8 0x00001100
> +wm 32 0x400ae4d0 DDRMC_PHY_PROC_PAD_ODT
> +wm 32 0x400ae000 0x00000601
> +
> +CHECKPOINT(7)
> +
> +check 32 while_any_bit_clear 0x400ae140 0x100
> +
> +CHECKPOINT(8)
> +
> +/*
> + * Cargo cult DDR controller initialization here we come!
> + *
> + * Experemintation with VF610 Tower Board shows that without the
s/Experemintation/Experimentation/
> + * following code the board would not boot off of SD card when
> + * power-cycled. It will however happily boot when reset via SW3/Reset
> + * button. For whatever reason the following actions appear to be
> + * necessary:
> + *
> + * - Initialize DDRMC as usual
> + * - Issue a read to location in DDR address space
> + * - Disable DDRMC
> + * - Enable DDRMC and wait for it to finish initializing
> + *
> + * I am sure this is all going to be extrememly embarrassing to read
> + * if/when the real problem and real solution is found.
> + */
> +
> +/*
> + * Because there's no standalone read command what we do here instead
> + * is write a pattern to memory and then checking that memory address
> + * against that pattern
> + */
> +wm 32 0x80000000 0xa5a5a5a5
> +check 32 while_any_bit_clear 0x80000000 0xa5a5a5a5
> +
> +wm 32 0x400ae000 0x00000600
> +wm 32 0x400ae000 0x00000601
> +
> +check 32 while_any_bit_clear 0x400ae140 0x100
> +
> +CHECKPOINT(9)
> \ No newline at end of file
> diff --git a/arch/arm/boards/freescale-vf610-twr/lowlevel.c b/arch/arm/boards/freescale-vf610-twr/lowlevel.c
> new file mode 100644
> index 0000000..6504273
> --- /dev/null
> +++ b/arch/arm/boards/freescale-vf610-twr/lowlevel.c
> @@ -0,0 +1,45 @@
> +#include <common.h>
> +#include <linux/sizes.h>
> +#include <mach/generic.h>
> +#include <asm/barebox-arm-head.h>
> +#include <asm/barebox-arm.h>
> +#include <mach/vf610-regs.h>
> +#include <mach/clock-vf610.h>
> +#include <mach/iomux-vf610.h>
> +#include <debug_ll.h>
> +
> +static inline void setup_uart(void)
> +{
> + void __iomem *iomuxbase = IOMEM(VF610_IOMUXC_BASE_ADDR);
> +
> + vf610_ungate_all_peripherals();
> +
> + /*
> + * VF610_PAD_PTB4__UART1_TX
> + */
> + writel(VF610_UART_PAD_CTRL | (2 << 20), iomuxbase + 0x0068);
> + writel(0, iomuxbase + 0x0380);
> +
> + vf610_uart_setup_ll();
> +}
> +
> +extern char __dtb_vf610_twr_start[];
> +
> +ENTRY_FUNCTION(start_vf610_twr, r0, r1, r2)
> +{
> + int i;
> + void *fdt;
> + void __iomem *mscm = IOMEM(VF610_MSCM_BASE_ADDR);
> +
> + vf610_cpu_lowlevel_init();
> +
> + for (i = 0; i < VF610_MSCM_IRSPRC_NUM; i++)
> + writew(VF610_MSCM_IRSPRC_CP0_EN,
> + mscm + VF610_MSCM_IRSPRC(i));
> +
> + if (IS_ENABLED(CONFIG_DEBUG_LL))
> + setup_uart();
> +
> + fdt = __dtb_vf610_twr_start - get_runtime_offset();
> + barebox_arm_entry(0x80000000, SZ_128M, fdt);
> +}
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index d1a3fe8..f93152c 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -76,5 +76,6 @@ pbl-dtb-$(CONFIG_MACH_TX6X) += imx6q-tx6q.dtb.o
> pbl-dtb-$(CONFIG_MACH_UDOO) += imx6q-udoo.dtb.o
> pbl-dtb-$(CONFIG_MACH_USI_TOPKICK) += kirkwood-topkick-bb.dtb.o
> pbl-dtb-$(CONFIG_MACH_VARISCITE_MX6) += imx6q-var-custom.dtb.o
> +pbl-dtb-$(CONFIG_MACH_VF610_TWR) += vf610-twr.dtb.o
>
> clean-files := *.dtb *.dtb.S .*.dtc .*.pre .*.dts *.dtb.lzo
> diff --git a/arch/arm/dts/vf610-twr.dts b/arch/arm/dts/vf610-twr.dts
> new file mode 100644
> index 0000000..54b4435
> --- /dev/null
> +++ b/arch/arm/dts/vf610-twr.dts
> @@ -0,0 +1,14 @@
> +/*
> + * Copyright 2013 Freescale Semiconductor, Inc.
> + *
> + * 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.
> + */
> +
> +#include <arm/vf610-twr.dts>
> +
> +&usbdev0 {
> + status = "disabled";
> +};
> diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
> index 71862ef..0284a8f 100644
> --- a/arch/arm/mach-imx/Kconfig
> +++ b/arch/arm/mach-imx/Kconfig
> @@ -332,6 +332,10 @@ config MACH_CM_FX6
> bool "CM FX6"
> select ARCH_IMX6
>
> +config MACH_VF610_TWR
> + bool "Freescale VF610 Tower Board"
> + select ARCH_VF610
> +
> endif
>
> # ----------------------------------------------------------
> diff --git a/arch/arm/mach-imx/include/mach/clock-vf610.h b/arch/arm/mach-imx/include/mach/clock-vf610.h
Should be added in a SoC specific patch.
> +#define CCM_CCR_FIRC_EN (1 << 16)
> +#define CCM_CCR_OSCNT_MASK 0xff
> +#define CCM_CCR_OSCNT(v) ((v) & 0xff)
> +
[...]
> +#define ENET_EXTERNAL_CLK 50000000
> +#define AUDIO_EXTERNAL_CLK 24576000
VF610_ prefix?
> diff --git a/arch/arm/mach-imx/include/mach/iomux-vf610.h b/arch/arm/mach-imx/include/mach/iomux-vf610.h
Should also be added in a SoC specific patch.
Sascha
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