sysmo-bts
/
u-boot
9
0
Fork 0
Code Pull Requests Releases Activity

gw_ventana: Move the DCD settings to spl code 

mx6sabresd_spl.cfg configures CCM registers, GPR registers and CCM_CCOSR.

Move the configuration to the spl code.

CCM_CCOSR setting is no longer required to get audio functionality in the
kernel, so remove such setting.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
This commit is contained in:
Fabio Estevam 2014-11-14 09:37:00 -02:00 committed by Stefano Babic
parent 6e9b6bb5a0
commit e25fbe3fe5
3 changed files with 28 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
board/gateworks/gw_ventana/clocks.cfg
View File

@ -1,42 +0,0 @@
/*
* Copyright (C) 2013 Boundary Devices
* Copyright (C) 2013 Gateworks Corporation
*
* SPDX-License-Identifier: GPL-2.0+
*
* Device Configuration Data (DCD)
*
* Each entry must have the format:
* Addr-type Address Value
*
* where:
* Addr-type register length (1,2 or 4 bytes)
* Address absolute address of the register
* value value to be stored in the register
*/
/* set the default clock gate to save power */
DATA 4, CCM_CCGR0, 0x00C03F3F
DATA 4, CCM_CCGR1, 0x0030FC03
DATA 4, CCM_CCGR2, 0x0FFFC000
DATA 4, CCM_CCGR3, 0x3FF00000
DATA 4, CCM_CCGR4, 0xFFFFF300 /* enable NAND/GPMI/BCH clocks */
DATA 4, CCM_CCGR5, 0x0F0000C3
DATA 4, CCM_CCGR6, 0x000003FF
/* enable AXI cache for VDOA/VPU/IPU */
DATA 4, MX6_IOMUXC_GPR4, 0xF00000CF
/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
DATA 4, MX6_IOMUXC_GPR6, 0x007F007F
DATA 4, MX6_IOMUXC_GPR7, 0x007F007F
/*
* Setup CCM_CCOSR register as follows:
*
* cko1_en = 1 --> CKO1 enabled
* cko1_div = 111 --> divide by 8
* cko1_sel = 1011 --> ahb_clk_root
*
* This sets CKO1 at ahb_clk_root/8 = 132/8 = 16.5 MHz
*/
DATA 4, CCM_CCOSR, 0x000000fb

6
board/gateworks/gw_ventana/gw_ventana.cfg
View File

@ -21,9 +21,3 @@ BOOT_FROM spi
#else
BOOT_FROM nand
#endif
#define __ASSEMBLY__
#include <config.h>
#include "asm/arch/iomux.h"
#include "asm/arch/crm_regs.h"
#include "clocks.cfg"

28
board/gateworks/gw_ventana/gw_ventana_spl.c
View File

@ -8,6 +8,7 @@
#include <common.h>
#include <i2c.h>
#include <asm/io.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-ddr.h>
#include <asm/arch/mx6-pins.h>
@ -392,6 +393,30 @@ static void spl_dram_init(int width, int size_mb, int board_model)
mx6_dram_cfg(&sysinfo, calib, mem);
}
static void ccgr_init(void)
{
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
writel(0x00C03F3F, &ccm->CCGR0);
writel(0x0030FC03, &ccm->CCGR1);
writel(0x0FFFC000, &ccm->CCGR2);
writel(0x3FF00000, &ccm->CCGR3);
writel(0x00FFF300, &ccm->CCGR4);
writel(0x0F0000C3, &ccm->CCGR5);
writel(0x000003FF, &ccm->CCGR6);
}
static void gpr_init(void)
{
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
/* enable AXI cache for VDOA/VPU/IPU */
writel(0xF00000CF, &iomux->gpr[4]);
/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
writel(0x007F007F, &iomux->gpr[6]);
writel(0x007F007F, &iomux->gpr[7]);
}
/*
* called from C runtime startup code (arch/arm/lib/crt0.S:_main)
* - we have a stack and a place to store GD, both in SRAM
@ -405,6 +430,9 @@ void board_init_f(ulong dummy)
/* setup AIPS and disable watchdog */
arch_cpu_init();
ccgr_init();
gpr_init();
/* iomux and setup of i2c */
board_early_init_f();
i2c_setup_iomux();