mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
492938a334
CKO1 drives sgtl5000 codec clock on nitrogen boards and wandboard. Doing this setup in the bootloader will allow us to remove a lot of code in arch/arm/mach-imx/mach-imx6q.c from the mainline kernel. Also, according to Eric Nelson: "enabling the clock <in the bootloader> will remove squeal after an ungraceful reboot (watchdog) if hooked up to speakers." Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
58 lines
1.8 KiB
INI
58 lines
1.8 KiB
INI
/*
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* Copyright (C) 2013 Boundary Devices
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not write to the Free Software
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* Foundation Inc. 51 Franklin Street Fifth Floor Boston,
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* MA 02110-1301 USA
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*
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* Device Configuration Data (DCD)
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*
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* Each entry must have the format:
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* Addr-type Address Value
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*
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* where:
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* Addr-type register length (1,2 or 4 bytes)
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* Address absolute address of the register
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* value value to be stored in the register
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*/
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/* set the default clock gate to save power */
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DATA 4, CCM_CCGR0, 0x00C03F3F
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DATA 4, CCM_CCGR1, 0x0030FC03
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DATA 4, CCM_CCGR2, 0x0FFFC000
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DATA 4, CCM_CCGR3, 0x3FF00000
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DATA 4, CCM_CCGR4, 0x00FFF300
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DATA 4, CCM_CCGR5, 0x0F0000C3
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DATA 4, CCM_CCGR6, 0x000003FF
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/* enable AXI cache for VDOA/VPU/IPU */
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DATA 4, MX6_IOMUXC_GPR4, 0xF00000CF
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/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
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DATA 4, MX6_IOMUXC_GPR6, 0x007F007F
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DATA 4, MX6_IOMUXC_GPR7, 0x007F007F
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/*
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* Setup CCM_CCOSR register as follows:
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*
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* cko1_en = 1 --> CKO1 enabled
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* cko1_div = 111 --> divide by 8
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* cko1_sel = 1011 --> ahb_clk_root
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*
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* This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz
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*/
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DATA 4, CCM_CCOSR, 0x000000fb
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