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authorFabio Estevam <fabio.estevam@freescale.com>2014-11-14 09:37:00 -0200
committerStefano Babic <sbabic@denx.de>2014-11-20 10:13:54 +0100
commite25fbe3fe531029dc7b100ea4c79dbc802e17fc2 (patch)
tree599241a4c86c6ea13c2f0ee671e191b3aedb432c /board/gateworks
parent6e9b6bb5a06abd0b45da7f78d1ebb630e0e97fd0 (diff)
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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>
Diffstat (limited to 'board/gateworks')
-rw-r--r--board/gateworks/gw_ventana/clocks.cfg42
-rw-r--r--board/gateworks/gw_ventana/gw_ventana.cfg6
-rw-r--r--board/gateworks/gw_ventana/gw_ventana_spl.c28
3 files changed, 28 insertions, 48 deletions
diff --git a/board/gateworks/gw_ventana/clocks.cfg b/board/gateworks/gw_ventana/clocks.cfg
deleted file mode 100644
index a8118a2..0000000
--- a/board/gateworks/gw_ventana/clocks.cfg
+++ /dev/null
@@ -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
diff --git a/board/gateworks/gw_ventana/gw_ventana.cfg b/board/gateworks/gw_ventana/gw_ventana.cfg
index 9ab95f5..dd8aa61 100644
--- a/board/gateworks/gw_ventana/gw_ventana.cfg
+++ b/board/gateworks/gw_ventana/gw_ventana.cfg
@@ -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"
diff --git a/board/gateworks/gw_ventana/gw_ventana_spl.c b/board/gateworks/gw_ventana/gw_ventana_spl.c
index ca35b3c..d6a5847 100644
--- a/board/gateworks/gw_ventana/gw_ventana_spl.c
+++ b/board/gateworks/gw_ventana/gw_ventana_spl.c
@@ -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();