[U-Boot] [PATCH v2 2/4] gw_ventana: Move the DCD settings to spl code

[Fabio Estevam]

From: Fabio Estevam <fabio.estevam at freescale.com>

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 at freescale.com>
---
Changes since v1:
- Newly introduced on this series

 board/gateworks/gw_ventana/clocks.cfg       | 42 -----------------------------
 board/gateworks/gw_ventana/gw_ventana.cfg   |  6 -----
 board/gateworks/gw_ventana/gw_ventana_spl.c | 28 +++++++++++++++++++
 3 files changed, 28 insertions(+), 48 deletions(-)
 delete mode 100644 board/gateworks/gw_ventana/clocks.cfg

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();
-- 
1.9.1