[PATCH v4 2/2] powerpc/mpc5121: add initial support for PDM360NG board
Anatolij Gustschin
agust at denx.de
Wed Jul 28 07:26:02 EST 2010
Adds IFM PDM360NG device tree and platform code.
Currently following is supported:
- Spansion S29GL512P 256 MB NOR flash
- ST Micro NAND 1 GiB flash
- DIU, please use "fbcon=map:5 video=fslfb:800x480-32 at 60"
at the kernel command line to enable PrimeView PM070WL3
Display support.
- FEC
- I2C
- RTC, EEPROM
- MSCAN
- PSC UART, please pass "console=tty0 console=ttyPSC5,115200"
on the kernel command line.
- SPI, ADS7845 Touchscreen
- USB0/1 Host
- USB0 OTG Host/Device
- VIU, Overlay/Capture support
Signed-off-by: Markus Fischer <markus.fischer.ec at ifm.com>
Signed-off-by: Wolfgang Grandegger <wg at denx.de>
Signed-off-by: Michael Weiss <michael.weiss at ifm.com>
Signed-off-by: Detlev Zundel <dzu at denx.de>
Signed-off-by: Anatolij Gustschin <agust at denx.de>
Cc: devicetree-discuss at lists.ozlabs.org
Cc: Grant Likely <grant.likely at secretlab.ca>
---
v4:
- set interrupt-parent in root node only, less verbose DT
- add compatible property to phy node
- update touch screen controller node (add reg and
spi-max-frequency properties)
- drop unnecessary (u32 *) casts
- change return statement in pdm360ng_get_pendown_state()
as suggested
- use correct error codes (-ENODEV) when returning on errors
- use of_iomap() to eliminate some code
- rework pdm360ng_touchscreen_init() to only use bus notifier
for addition of platform data for touch screen driver
- eliminate machine_device_initcall(), code moved to init
callback
v3:
- uncomment and correct .irq_flags field of touchscreen
platform data struct as proposed extension to this
data struct has been accepted and merged via input tree
a short while ago
v1 -> v2:
- fix interrupt-parent property in nfc node
- drop #address-cells in ipic node
- remove device_type from ethernet-phy sub-node
- remove device_type from ethernet node
- add aliases node for eth0, needed for MAC address
update by U-Boot
- removed spaces around &ipic
arch/powerpc/boot/dts/pdm360ng.dts | 410 ++++++++++++++++++++++++++++++++
arch/powerpc/platforms/512x/Kconfig | 7 +
arch/powerpc/platforms/512x/Makefile | 1 +
arch/powerpc/platforms/512x/pdm360ng.c | 129 ++++++++++
4 files changed, 547 insertions(+), 0 deletions(-)
create mode 100644 arch/powerpc/boot/dts/pdm360ng.dts
create mode 100644 arch/powerpc/platforms/512x/pdm360ng.c
diff --git a/arch/powerpc/boot/dts/pdm360ng.dts b/arch/powerpc/boot/dts/pdm360ng.dts
new file mode 100644
index 0000000..94dfa5c
--- /dev/null
+++ b/arch/powerpc/boot/dts/pdm360ng.dts
@@ -0,0 +1,410 @@
+/*
+ * Device Tree Source for IFM PDM360NG.
+ *
+ * Copyright 2009 - 2010 DENX Software Engineering.
+ * Anatolij Gustschin <agust at denx.de>
+ *
+ * Based on MPC5121E ADS dts.
+ * Copyright 2008 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+/dts-v1/;
+
+/ {
+ model = "pdm360ng";
+ compatible = "ifm,pdm360ng";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ interrupt-parent = <&ipic>;
+
+ aliases {
+ ethernet0 = ð0;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ PowerPC,5121 at 0 {
+ device_type = "cpu";
+ reg = <0>;
+ d-cache-line-size = <0x20>; // 32 bytes
+ i-cache-line-size = <0x20>; // 32 bytes
+ d-cache-size = <0x8000>; // L1, 32K
+ i-cache-size = <0x8000>; // L1, 32K
+ timebase-frequency = <49500000>;// 49.5 MHz (csb/4)
+ bus-frequency = <198000000>; // 198 MHz csb bus
+ clock-frequency = <396000000>; // 396 MHz ppc core
+ };
+ };
+
+ memory {
+ device_type = "memory";
+ reg = <0x00000000 0x20000000>; // 512MB at 0
+ };
+
+ nfc at 40000000 {
+ compatible = "fsl,mpc5121-nfc";
+ reg = <0x40000000 0x100000>;
+ interrupts = <0x6 0x8>;
+ #address-cells = <0x1>;
+ #size-cells = <0x1>;
+ bank-width = <0x1>;
+ chips = <0x1>;
+
+ partition at 0 {
+ label = "nand0";
+ reg = <0x0 0x40000000>;
+ };
+ };
+
+ sram at 50000000 {
+ compatible = "fsl,mpc5121-sram";
+ reg = <0x50000000 0x20000>; // 128K at 0x50000000
+ };
+
+ localbus at 80000020 {
+ compatible = "fsl,mpc5121-localbus";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ reg = <0x80000020 0x40>;
+
+ ranges = <0x0 0x0 0xf0000000 0x10000000 /* Flash */
+ 0x2 0x0 0x50040000 0x00020000>; /* CS2: MRAM */
+
+ flash at 0,0 {
+ compatible = "amd,s29gl01gp", "cfi-flash";
+ reg = <0 0x00000000 0x08000000
+ 0 0x08000000 0x08000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ bank-width = <4>;
+ device-width = <2>;
+
+ partition at 0 {
+ label = "u-boot";
+ reg = <0x00000000 0x00080000>;
+ read-only;
+ };
+ partition at 80000 {
+ label = "environment";
+ reg = <0x00080000 0x00080000>;
+ read-only;
+ };
+ partition at 100000 {
+ label = "splash-image";
+ reg = <0x00100000 0x00080000>;
+ read-only;
+ };
+ partition at 180000 {
+ label = "device-tree";
+ reg = <0x00180000 0x00040000>;
+ };
+ partition at 1c0000 {
+ label = "kernel";
+ reg = <0x001c0000 0x00500000>;
+ };
+ partition at 6c0000 {
+ label = "filesystem";
+ reg = <0x006c0000 0x07940000>;
+ };
+ };
+
+ mram0 at 2,0 {
+ compatible = "mtd-ram";
+ reg = <2 0x00000 0x10000>;
+ bank-width = <2>;
+ };
+
+ mram1 at 2,10000 {
+ compatible = "mtd-ram";
+ reg = <2 0x010000 0x10000>;
+ bank-width = <2>;
+ };
+ };
+
+ soc at 80000000 {
+ compatible = "fsl,mpc5121-immr";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #interrupt-cells = <2>;
+ ranges = <0x0 0x80000000 0x400000>;
+ reg = <0x80000000 0x400000>;
+ bus-frequency = <66000000>; // 66 MHz ips bus
+
+ // IPIC
+ // interrupts cell = <intr #, sense>
+ // sense values match linux IORESOURCE_IRQ_* defines:
+ // sense == 8: Level, low assertion
+ // sense == 2: Edge, high-to-low change
+ //
+ ipic: interrupt-controller at c00 {
+ compatible = "fsl,mpc5121-ipic", "fsl,ipic";
+ interrupt-controller;
+ #address-cells = <0>;
+ #interrupt-cells = <2>;
+ reg = <0xc00 0x100>;
+ };
+
+ rtc at a00 { // Real time clock
+ compatible = "fsl,mpc5121-rtc";
+ reg = <0xa00 0x100>;
+ interrupts = <79 0x8 80 0x8>;
+ };
+
+ reset at e00 { // Reset module
+ compatible = "fsl,mpc5121-reset";
+ reg = <0xe00 0x100>;
+ };
+
+ clock at f00 { // Clock control
+ compatible = "fsl,mpc5121-clock";
+ reg = <0xf00 0x100>;
+ };
+
+ pmc at 1000{ //Power Management Controller
+ compatible = "fsl,mpc5121-pmc";
+ reg = <0x1000 0x100>;
+ interrupts = <83 0x2>;
+ };
+
+ gpio at 1100 {
+ compatible = "fsl,mpc5121-gpio";
+ reg = <0x1100 0x100>;
+ interrupts = <78 0x8>;
+ };
+
+ can at 1300 {
+ compatible = "fsl,mpc5121-mscan";
+ interrupts = <12 0x8>;
+ reg = <0x1300 0x80>;
+ };
+
+ can at 1380 {
+ compatible = "fsl,mpc5121-mscan";
+ interrupts = <13 0x8>;
+ reg = <0x1380 0x80>;
+ };
+
+ i2c at 1700 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mpc5121-i2c";
+ reg = <0x1700 0x20>;
+ interrupts = <0x9 0x8>;
+ fsl,preserve-clocking;
+
+ eeprom at 50 {
+ compatible = "at,24c01";
+ reg = <0x50>;
+ };
+
+ rtc at 68 {
+ compatible = "stm,m41t00";
+ reg = <0x68>;
+ };
+ };
+
+ i2c at 1740 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,mpc5121-i2c";
+ reg = <0x1740 0x20>;
+ interrupts = <0xb 0x8>;
+ fsl,preserve-clocking;
+ };
+
+ i2ccontrol at 1760 {
+ compatible = "fsl,mpc5121-i2c-ctrl";
+ reg = <0x1760 0x8>;
+ };
+
+ axe at 2000 {
+ compatible = "fsl,mpc5121-axe";
+ reg = <0x2000 0x100>;
+ interrupts = <42 0x8>;
+ };
+
+ display at 2100 {
+ compatible = "fsl,mpc5121-diu";
+ reg = <0x2100 0x100>;
+ interrupts = <64 0x8>;
+ };
+
+ can at 2300 {
+ compatible = "fsl,mpc5121-mscan";
+ interrupts = <90 0x8>;
+ reg = <0x2300 0x80>;
+ };
+
+ can at 2380 {
+ compatible = "fsl,mpc5121-mscan";
+ interrupts = <91 0x8>;
+ reg = <0x2380 0x80>;
+ };
+
+ viu at 2400 {
+ compatible = "fsl,mpc5121-viu";
+ reg = <0x2400 0x400>;
+ interrupts = <67 0x8>;
+ };
+
+ mdio at 2800 {
+ compatible = "fsl,mpc5121-fec-mdio";
+ reg = <0x2800 0x200>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy: ethernet-phy at 0 {
+ compatible = "smsc,lan8700";
+ reg = <0x1f>;
+ };
+ };
+
+ eth0: ethernet at 2800 {
+ compatible = "fsl,mpc5121-fec";
+ reg = <0x2800 0x200>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ interrupts = <4 0x8>;
+ phy-handle = < &phy >;
+ };
+
+ // USB1 using external ULPI PHY
+ usb at 3000 {
+ compatible = "fsl,mpc5121-usb2-dr";
+ reg = <0x3000 0x600>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <43 0x8>;
+ dr_mode = "host";
+ phy_type = "ulpi";
+ };
+
+ // USB0 using internal UTMI PHY
+ usb at 4000 {
+ compatible = "fsl,mpc5121-usb2-dr";
+ reg = <0x4000 0x600>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <44 0x8>;
+ dr_mode = "otg";
+ phy_type = "utmi_wide";
+ fsl,invert-pwr-fault;
+ };
+
+ // IO control
+ ioctl at a000 {
+ compatible = "fsl,mpc5121-ioctl";
+ reg = <0xA000 0x1000>;
+ };
+
+ // 512x PSCs are not 52xx PSCs compatible
+ serial at 11000 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <0>;
+ reg = <0x11000 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ serial at 11100 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <1>;
+ reg = <0x11100 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ serial at 11200 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <2>;
+ reg = <0x11200 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ serial at 11300 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <3>;
+ reg = <0x11300 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ serial at 11400 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <4>;
+ reg = <0x11400 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ serial at 11600 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <6>;
+ reg = <0x11600 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ serial at 11800 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <8>;
+ reg = <0x11800 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ serial at 11B00 {
+ compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
+ cell-index = <11>;
+ reg = <0x11B00 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+ };
+
+ pscfifo at 11f00 {
+ compatible = "fsl,mpc5121-psc-fifo";
+ reg = <0x11f00 0x100>;
+ interrupts = <40 0x8>;
+ };
+
+ spi at 11900 {
+ compatible = "fsl,mpc5121-psc-spi", "fsl,mpc5121-psc";
+ cell-index = <9>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x11900 0x100>;
+ interrupts = <40 0x8>;
+ fsl,rx-fifo-size = <16>;
+ fsl,tx-fifo-size = <16>;
+
+ // 7845 touch screen controller
+ ts at 0 {
+ compatible = "ti,ads7846";
+ reg = <0x0>;
+ spi-max-frequency = <3000000>;
+ // pen irq is GPIO25
+ interrupts = <78 0x8>;
+ };
+ };
+
+ dma at 14000 {
+ compatible = "fsl,mpc5121-dma";
+ reg = <0x14000 0x1800>;
+ interrupts = <65 0x8>;
+ };
+ };
+};
diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig
index e9dca28..27b0651 100644
--- a/arch/powerpc/platforms/512x/Kconfig
+++ b/arch/powerpc/platforms/512x/Kconfig
@@ -25,3 +25,10 @@ config MPC5121_GENERIC
Compatible boards include: Protonic LVT base boards (ZANMCU
and VICVT2).
+
+config PDM360NG
+ bool "ifm PDM360NG board"
+ depends on PPC_MPC512x
+ select DEFAULT_UIMAGE
+ help
+ This option enables support for the PDM360NG board.
diff --git a/arch/powerpc/platforms/512x/Makefile b/arch/powerpc/platforms/512x/Makefile
index 90be2f5..4efc1c4 100644
--- a/arch/powerpc/platforms/512x/Makefile
+++ b/arch/powerpc/platforms/512x/Makefile
@@ -4,3 +4,4 @@
obj-y += clock.o mpc512x_shared.o
obj-$(CONFIG_MPC5121_ADS) += mpc5121_ads.o mpc5121_ads_cpld.o
obj-$(CONFIG_MPC5121_GENERIC) += mpc5121_generic.o
+obj-$(CONFIG_PDM360NG) += pdm360ng.o
diff --git a/arch/powerpc/platforms/512x/pdm360ng.c b/arch/powerpc/platforms/512x/pdm360ng.c
new file mode 100644
index 0000000..1eb8b0f
--- /dev/null
+++ b/arch/powerpc/platforms/512x/pdm360ng.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2010 DENX Software Engineering
+ *
+ * Anatolij Gustschin, <agust at denx.de>
+ *
+ * PDM360NG board setup
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+
+#include "mpc512x.h"
+
+#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
+ defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
+#include <linux/interrupt.h>
+#include <linux/spi/ads7846.h>
+#include <linux/spi/spi.h>
+#include <linux/notifier.h>
+
+static void *pdm360ng_gpio_base;
+
+static int pdm360ng_get_pendown_state(void)
+{
+ u32 reg;
+
+ reg = in_be32(pdm360ng_gpio_base + 0xc);
+ if (reg & 0x40)
+ setbits32(pdm360ng_gpio_base + 0xc, 0x40);
+
+ reg = in_be32(pdm360ng_gpio_base + 0x8);
+
+ /* return 1 if pen is down */
+ return (reg & 0x40) == 0;
+}
+
+static struct ads7846_platform_data pdm360ng_ads7846_pdata = {
+ .model = 7845,
+ .get_pendown_state = pdm360ng_get_pendown_state,
+ .irq_flags = IRQF_TRIGGER_LOW,
+};
+
+static int __init pdm360ng_penirq_init(void)
+{
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-gpio");
+ if (!np) {
+ pr_err("%s: Can't find 'mpc5121-gpio' node\n", __func__);
+ return -ENODEV;
+ }
+
+ pdm360ng_gpio_base = of_iomap(np, 0);
+ of_node_put(np);
+ if (!pdm360ng_gpio_base) {
+ pr_err("%s: Can't map gpio regs.\n", __func__);
+ return -ENODEV;
+ }
+ out_be32(pdm360ng_gpio_base + 0xc, 0xffffffff);
+ setbits32(pdm360ng_gpio_base + 0x18, 0x2000);
+ setbits32(pdm360ng_gpio_base + 0x10, 0x40);
+
+ return 0;
+}
+
+static int pdm360ng_touchscreen_notifier_call(struct notifier_block *nb,
+ unsigned long event, void *__dev)
+{
+ struct device *dev = __dev;
+
+ if ((event == BUS_NOTIFY_ADD_DEVICE) &&
+ of_device_is_compatible(dev->of_node, "ti,ads7846")) {
+ dev->platform_data = &pdm360ng_ads7846_pdata;
+ return NOTIFY_OK;
+ }
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block pdm360ng_touchscreen_nb = {
+ .notifier_call = pdm360ng_touchscreen_notifier_call,
+};
+
+static void __init pdm360ng_touchscreen_init(void)
+{
+ if (pdm360ng_penirq_init())
+ return;
+
+ bus_register_notifier(&spi_bus_type, &pdm360ng_touchscreen_nb);
+}
+#else
+static inline void __init pdm360ng_touchscreen_init(void)
+{
+}
+#endif /* CONFIG_TOUCHSCREEN_ADS7846 */
+
+void __init pdm360ng_init(void)
+{
+ mpc512x_init();
+ pdm360ng_touchscreen_init();
+}
+
+static int __init pdm360ng_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ return of_flat_dt_is_compatible(root, "ifm,pdm360ng");
+}
+
+define_machine(pdm360ng) {
+ .name = "PDM360NG",
+ .probe = pdm360ng_probe,
+ .setup_arch = mpc512x_setup_diu,
+ .init = pdm360ng_init,
+ .init_early = mpc512x_init_diu,
+ .init_IRQ = mpc512x_init_IRQ,
+ .get_irq = ipic_get_irq,
+ .calibrate_decr = generic_calibrate_decr,
+ .restart = mpc512x_restart,
+};
--
1.7.0.4
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