[U-Boot] [PATCH v6 13/15] samsung: Enable device tree for s5p_goni
Simon Glass
sjg at chromium.org
Wed Oct 8 06:01:50 CEST 2014
Change this board to add a device tree.
This also adds a pinmux header file although it is not used as yet.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
Changes in v6: None
Changes in v4:
- Rebase on top of master (CONFIG_OF settings moved to Kconfig)
Changes in v3:
- Adjust device tree file based on Robert Baldyga's example
Changes in v2:
- Avoid using a common file, and just add a device tree
- Fix device tree base addresses
arch/arm/Kconfig | 9 +++--
arch/arm/cpu/armv7/s5pc1xx/Kconfig | 20 ++++++++++
arch/arm/dts/Makefile | 1 +
arch/arm/dts/s5pc1xx-goni.dts | 28 ++++++++++++++
arch/arm/include/asm/arch-s5pc1xx/periph.h | 61 ++++++++++++++++++++++++++++++
arch/arm/include/asm/arch-s5pc1xx/pinmux.h | 50 ++++++++++++++++++++++++
configs/s5p_goni_defconfig | 2 +
drivers/mmc/s5p_sdhci.c | 2 -
include/configs/s5p_goni.h | 4 +-
9 files changed, 170 insertions(+), 7 deletions(-)
create mode 100644 arch/arm/cpu/armv7/s5pc1xx/Kconfig
create mode 100644 arch/arm/dts/s5pc1xx-goni.dts
create mode 100644 arch/arm/include/asm/arch-s5pc1xx/periph.h
create mode 100644 arch/arm/include/asm/arch-s5pc1xx/pinmux.h
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 43ba33a..22ceb9d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -336,6 +336,9 @@ config TARGET_BCM958622HR
config ARCH_EXYNOS
bool "Samsung EXYNOS"
+config ARCH_S5PC1XX
+ bool "Samsung S5PC1XX"
+
config ARCH_HIGHBANK
bool "Calxeda Highbank"
@@ -429,9 +432,6 @@ config RMOBILE
config TARGET_CM_FX6
bool "Support cm_fx6"
-config TARGET_S5P_GONI
- bool "Support s5p_goni"
-
config TARGET_SMDKC100
bool "Support smdkc100"
@@ -550,6 +550,8 @@ source "arch/arm/cpu/arm926ejs/orion5x/Kconfig"
source "arch/arm/cpu/armv7/rmobile/Kconfig"
+source "arch/arm/cpu/armv7/s5pc1xx/Kconfig"
+
source "arch/arm/cpu/armv7/tegra-common/Kconfig"
source "arch/arm/cpu/armv7/uniphier/Kconfig"
@@ -657,7 +659,6 @@ source "board/raspberrypi/rpi_b/Kconfig"
source "board/ronetix/pm9261/Kconfig"
source "board/ronetix/pm9263/Kconfig"
source "board/ronetix/pm9g45/Kconfig"
-source "board/samsung/goni/Kconfig"
source "board/samsung/smdk2410/Kconfig"
source "board/samsung/smdkc100/Kconfig"
source "board/sandisk/sansa_fuze_plus/Kconfig"
diff --git a/arch/arm/cpu/armv7/s5pc1xx/Kconfig b/arch/arm/cpu/armv7/s5pc1xx/Kconfig
new file mode 100644
index 0000000..1a8941d
--- /dev/null
+++ b/arch/arm/cpu/armv7/s5pc1xx/Kconfig
@@ -0,0 +1,20 @@
+if ARCH_S5PC1XX
+
+choice
+ prompt "S5PC1XX board select"
+
+config TARGET_S5P_GONI
+ bool "S5P Goni board"
+ select OF_CONTROL if !SPL_BUILD
+
+endchoice
+
+config SYS_CPU
+ default "armv7"
+
+config SYS_SOC
+ default "s5pc1xx"
+
+source "board/samsung/goni/Kconfig"
+
+endif
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 43a70e4..076e0f7 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1,3 +1,4 @@
+dtb-$(CONFIG_S5PC110) += s5pc1xx-goni.dtb
dtb-$(CONFIG_EXYNOS4) += exynos4210-origen.dtb \
exynos4210-smdkv310.dtb \
exynos4210-universal_c210.dtb \
diff --git a/arch/arm/dts/s5pc1xx-goni.dts b/arch/arm/dts/s5pc1xx-goni.dts
new file mode 100644
index 0000000..2e671bb
--- /dev/null
+++ b/arch/arm/dts/s5pc1xx-goni.dts
@@ -0,0 +1,28 @@
+/*
+ * Samsung's S5PC110-based Goni board device tree source
+ *
+ * Copyright (c) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/dts-v1/;
+
+#include "skeleton.dtsi"
+
+/ {
+ model = "Samsung Goni based on S5PC110";
+ compatible = "samsung,goni", "samsung,s5pc110";
+
+ aliases {
+ serial2 = "/serial at e2900800";
+ console = "/serial at e2900800";
+ };
+
+ serial at e2900800 {
+ compatible = "samsung,exynos4210-uart";
+ reg = <0xe2900800 0x400>;
+ id = <2>;
+ };
+
+};
diff --git a/arch/arm/include/asm/arch-s5pc1xx/periph.h b/arch/arm/include/asm/arch-s5pc1xx/periph.h
new file mode 100644
index 0000000..5c1c3d4
--- /dev/null
+++ b/arch/arm/include/asm/arch-s5pc1xx/periph.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ * Rajeshwari Shinde <rajeshwari.s at samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_ARM_ARCH_PERIPH_H
+#define __ASM_ARM_ARCH_PERIPH_H
+
+/*
+ * Peripherals required for pinmux configuration. List will
+ * grow with support for more devices getting added.
+ * Numbering based on interrupt table.
+ *
+ */
+enum periph_id {
+ PERIPH_ID_UART0 = 51,
+ PERIPH_ID_UART1,
+ PERIPH_ID_UART2,
+ PERIPH_ID_UART3,
+ PERIPH_ID_I2C0 = 56,
+ PERIPH_ID_I2C1,
+ PERIPH_ID_I2C2,
+ PERIPH_ID_I2C3,
+ PERIPH_ID_I2C4,
+ PERIPH_ID_I2C5,
+ PERIPH_ID_I2C6,
+ PERIPH_ID_I2C7,
+ PERIPH_ID_SPI0 = 68,
+ PERIPH_ID_SPI1,
+ PERIPH_ID_SPI2,
+ PERIPH_ID_SDMMC0 = 75,
+ PERIPH_ID_SDMMC1,
+ PERIPH_ID_SDMMC2,
+ PERIPH_ID_SDMMC3,
+ PERIPH_ID_I2C8 = 87,
+ PERIPH_ID_I2C9,
+ PERIPH_ID_I2S0 = 98,
+ PERIPH_ID_I2S1 = 99,
+
+ /* Since following peripherals do
+ * not have shared peripheral interrupts (SPIs)
+ * they are numbered arbitiraly after the maximum
+ * SPIs Exynos has (128)
+ */
+ PERIPH_ID_SROMC = 128,
+ PERIPH_ID_SPI3,
+ PERIPH_ID_SPI4,
+ PERIPH_ID_SDMMC4,
+ PERIPH_ID_PWM0,
+ PERIPH_ID_PWM1,
+ PERIPH_ID_PWM2,
+ PERIPH_ID_PWM3,
+ PERIPH_ID_PWM4,
+ PERIPH_ID_I2C10 = 203,
+
+ PERIPH_ID_NONE = -1,
+};
+
+#endif /* __ASM_ARM_ARCH_PERIPH_H */
diff --git a/arch/arm/include/asm/arch-s5pc1xx/pinmux.h b/arch/arm/include/asm/arch-s5pc1xx/pinmux.h
new file mode 100644
index 0000000..0b91ef6
--- /dev/null
+++ b/arch/arm/include/asm/arch-s5pc1xx/pinmux.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ * Abhilash Kesavan <a.kesavan at samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __ASM_ARM_ARCH_PINMUX_H
+#define __ASM_ARM_ARCH_PINMUX_H
+
+#include "periph.h"
+
+/*
+ * Flags for setting specific configarations of peripherals.
+ * List will grow with support for more devices getting added.
+ */
+enum {
+ PINMUX_FLAG_NONE = 0x00000000,
+
+ /* Flags for eMMC */
+ PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */
+
+ /* Flags for SROM controller */
+ PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */
+ PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */
+};
+
+/**
+ * Configures the pinmux for a particular peripheral.
+ *
+ * Each gpio can be configured in many different ways (4 bits on exynos)
+ * such as "input", "output", "special function", "external interrupt"
+ * etc. This function will configure the peripheral pinmux along with
+ * pull-up/down and drive strength.
+ *
+ * @param peripheral peripheral to be configured
+ * @param flags configure flags
+ * @return 0 if ok, -1 on error (e.g. unsupported peripheral)
+ */
+int exynos_pinmux_config(int peripheral, int flags);
+
+/**
+ * Decode the peripheral id using the interrpt numbers.
+ *
+ * @param blob Device tree blob
+ * @param node FDT I2C node to find
+ * @return peripheral id if ok, PERIPH_ID_NONE on error
+ */
+int pinmux_decode_periph_id(const void *blob, int node);
+#endif
diff --git a/configs/s5p_goni_defconfig b/configs/s5p_goni_defconfig
index c0c3509..618e590 100644
--- a/configs/s5p_goni_defconfig
+++ b/configs/s5p_goni_defconfig
@@ -1,2 +1,4 @@
CONFIG_ARM=y
+CONFIG_ARCH_S5PC1XX=y
CONFIG_TARGET_S5P_GONI=y
+CONFIG_DEFAULT_DEVICE_TREE="s5pc1xx-goni"
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
index 2ff0ec2..637dd97 100644
--- a/drivers/mmc/s5p_sdhci.c
+++ b/drivers/mmc/s5p_sdhci.c
@@ -14,9 +14,7 @@
#include <asm/arch/mmc.h>
#include <asm/arch/clk.h>
#include <errno.h>
-#ifdef CONFIG_OF_CONTROL
#include <asm/arch/pinmux.h>
-#endif
static char *S5P_NAME = "SAMSUNG SDHCI";
static void s5p_sdhci_set_control_reg(struct sdhci_host *host)
diff --git a/include/configs/s5p_goni.h b/include/configs/s5p_goni.h
index a51215d..feb4d76 100644
--- a/include/configs/s5p_goni.h
+++ b/include/configs/s5p_goni.h
@@ -53,6 +53,7 @@
#define CONFIG_MMC
#define CONFIG_SDHCI
#define CONFIG_S5P_SDHCI
+#define SDHCI_MAX_HOSTS 4
/* PWM */
#define CONFIG_PWM 1
@@ -106,7 +107,6 @@
",12m(modem)"\
",60m(qboot)\0"
-#define CONFIG_BOOTDELAY 1
#define CONFIG_ZERO_BOOTDELAY_CHECK
/* partitions definitions */
@@ -283,4 +283,6 @@
#define CONFIG_CMD_USB_MASS_STORAGE
#define CONFIG_USB_GADGET_MASS_STORAGE
+#define CONFIG_OF_LIBFDT
+
#endif /* __CONFIG_H */
--
2.1.0.rc2.206.gedb03e5
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