From patchwork Wed Mar 20 17:41:54 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matteo Facchinetti X-Patchwork-Id: 229440 X-Patchwork-Delegate: agust@denx.de Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id 447BB2C04E8 for ; Thu, 21 Mar 2013 04:44:02 +1100 (EST) Received: from ns1.gatteins.it (ns1.gatteins.it [193.58.239.94]) by ozlabs.org (Postfix) with ESMTP id 011D32C00C4 for ; Thu, 21 Mar 2013 04:42:15 +1100 (EST) X-Virus-Scanned: amavisd-new at gattei.com Received: from GREEEZLY.home (128.pool85-49-220.dynamic.orange.es [85.49.220.128]) by ns1.gatteins.it (Postfix) with ESMTPA id 35EAFDED7B; Wed, 20 Mar 2013 18:42:26 +0100 (MET) From: Matteo Facchinetti To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 3/3] powerpc/mpc512x: add platform code for MPC5125. Date: Wed, 20 Mar 2013 18:41:54 +0100 Message-Id: <1363801314-16967-4-git-send-email-matteo.facchinetti@sirius-es.it> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1363801314-16967-1-git-send-email-matteo.facchinetti@sirius-es.it> References: <1363801314-16967-1-git-send-email-matteo.facchinetti@sirius-es.it> Cc: gregkh@linuxfoundation.org, Matteo Facchinetti , agust@denx.de X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Tested on MPC5125 Tower evaluation board with mpc512x_defconfig compile configuration. In detail, supports for: - PSC / UART - RTC - ETH - DIU - I2C Signed-off-by: Matteo Facchinetti --- arch/powerpc/boot/dts/mpc5125twr.dts | 238 +++++++++++++++++++++++++ arch/powerpc/platforms/512x/clock.c | 9 +- arch/powerpc/platforms/512x/mpc512x.h | 1 + arch/powerpc/platforms/512x/mpc512x_generic.c | 1 + arch/powerpc/platforms/512x/mpc512x_shared.c | 24 ++- 5 files changed, 271 insertions(+), 2 deletions(-) create mode 100644 arch/powerpc/boot/dts/mpc5125twr.dts diff --git a/arch/powerpc/boot/dts/mpc5125twr.dts b/arch/powerpc/boot/dts/mpc5125twr.dts new file mode 100644 index 0000000..afcad7a --- /dev/null +++ b/arch/powerpc/boot/dts/mpc5125twr.dts @@ -0,0 +1,238 @@ +/* + * STx/Freescale ADS5125 MPC5125 silicon + * + * Copyright (C) 2009 Freescale Semiconductor Inc. All rights reserved. + * + * Reworked by Matteo Facchinetti (engineering@sirius-es.it) + * Copyright (C) 2013 Sirius Electronic Systems + * + * 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 = "mpc5125twr"; // In BSP "mpc5125ads" + compatible = "fsl,mpc5125ads"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&ipic>; + + aliases { + gpio0 = &gpio0; + gpio1 = &gpio1; + ethernet0 = ð0; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + PowerPC,5125@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 0x10000000>; // 256MB at 0 + }; + + sram@30000000 { + compatible = "fsl,mpc5121-sram"; + reg = <0x30000000 0x08000>; // 32K at 0x30000000 + }; + + soc@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 = + // sense values match linux IORESOURCE_IRQ_* defines: + // sense == 8: Level, low assertion + // sense == 2: Edge, high-to-low change + // + ipic: interrupt-controller@c00 { + compatible = "fsl,mpc5121-ipic", "fsl,ipic"; + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <2>; + reg = <0xc00 0x100>; + }; + + rtc@a00 { // Real time clock + compatible = "fsl,mpc5121-rtc"; + reg = <0xa00 0x100>; + interrupts = <79 0x8 80 0x8>; + }; + + reset@e00 { // Reset module + compatible = "fsl,mpc5121-reset"; + reg = <0xe00 0x100>; + }; + + clock@f00 { // Clock control + compatible = "fsl,mpc5121-clock"; + reg = <0xf00 0x100>; + }; + + pmc@1000{ // Power Management Controller + compatible = "fsl,mpc5121-pmc"; + reg = <0x1000 0x100>; + interrupts = <83 0x2>; + }; + + gpio0: gpio@1100 { + compatible = "fsl,mpc5125-gpio"; + reg = <0x1100 0x080>; + interrupts = <78 0x8>; + }; + + gpio1: gpio@1180 { + compatible = "fsl,mpc5125-gpio"; + reg = <0x1180 0x080>; + interrupts = <86 0x8>; + }; + + can@1300 { // CAN rev.2 + compatible = "fsl,mpc5121-mscan"; + interrupts = <12 0x8>; + reg = <0x1300 0x80>; + }; + + can@1380 { + compatible = "fsl,mpc5121-mscan"; + interrupts = <13 0x8>; + reg = <0x1380 0x80>; + }; + + sdhc@1500 { + compatible = "fsl,mpc5121-sdhc"; + interrupts = <8 0x8>; + reg = <0x1500 0x100>; + }; + + i2c@1700 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl-i2c"; + reg = <0x1700 0x20>; + interrupts = <0x9 0x8>; + }; + + i2c@1720 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl-i2c"; + reg = <0x1720 0x20>; + interrupts = <0xa 0x8>; + }; + + i2c@1740 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl-i2c"; + reg = <0x1740 0x20>; + interrupts = <0xb 0x8>; + }; + + i2ccontrol@1760 { + compatible = "fsl,mpc5121-i2c-ctrl"; + reg = <0x1760 0x8>; + }; + + diu@2100 { + device_type = "display"; + compatible = "fsl,mpc5121-diu"; + reg = <0x2100 0x100>; + interrupts = <64 0x8>; + }; + + mdio@2800 { + compatible = "fsl,mpc5121-fec-mdio"; + reg = <0x2800 0x800>; + #address-cells = <1>; + #size-cells = <0>; + phy0: ethernet-phy@0 { + reg = <1>; + }; + }; + + eth0: ethernet@2800 { + compatible = "fsl,mpc5125-fec"; + reg = <0x2800 0x800>; + local-mac-address = [ 00 00 00 00 00 00 ]; + interrupts = <4 0x8>; + phy-handle = < &phy0 >; + phy-connection-type = "rmii"; + }; + + // IO control + ioctl@a000 { + compatible = "fsl,mpc5125-ioctl"; + reg = <0xA000 0x1000>; + }; + + usb@3000 { + compatible = "fsl,mpc5121-usb2-dr"; + reg = <0x3000 0x400>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <43 0x8>; + dr_mode = "host"; + phy_type = "ulpi"; + }; + + // 5125 PSCs are not 52xx or 5121 PSC compatible + // PSC1 uart0 aka ttyPSC0 + serial@11100 { + device_type = "serial"; + compatible = "fsl,mpc5125-psc-uart", "fsl,mpc5125-psc"; + port-number = <0>; + reg = <0x11100 0x100>; + interrupts = <40 0x8>; + fsl,rx-fifo-size = <16>; + fsl,tx-fifo-size = <16>; + }; + + // PSC9 uart1 aka ttyPSC1 + serial@11900 { + device_type = "serial"; + compatible = "fsl,mpc5125-psc-uart", "fsl,mpc5125-psc"; + port-number = <1>; + reg = <0x11900 0x100>; + interrupts = <40 0x8>; + fsl,rx-fifo-size = <16>; + fsl,tx-fifo-size = <16>; + }; + + pscfifo@11f00 { + compatible = "fsl,mpc5121-psc-fifo"; + reg = <0x11f00 0x100>; + interrupts = <40 0x8>; + }; + + dma@14000 { + compatible = "fsl,mpc5121-dma"; // BSP name: "mpc512x-dma2" + reg = <0x14000 0x1800>; + interrupts = <65 0x8>; + }; + }; +}; diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c index 52d57d2..a8987dc2 100644 --- a/arch/powerpc/platforms/512x/clock.c +++ b/arch/powerpc/platforms/512x/clock.c @@ -29,6 +29,8 @@ #include #include +#include "mpc512x.h" + #undef CLK_DEBUG static int clocks_initialized; @@ -683,8 +685,13 @@ static void psc_clks_init(void) struct device_node *np; struct platform_device *ofdev; u32 reg; + char *psc_compat; + + psc_compat = mpc512x_select_psc_compat(); + if (!psc_compat) + return; - for_each_compatible_node(np, NULL, "fsl,mpc5121-psc") { + for_each_compatible_node(np, NULL, psc_compat) { if (!of_property_read_u32(np, "reg", ®)) { int pscnum = (reg & 0xf00) >> 8; struct clk *clk = psc_dev_clk(pscnum); diff --git a/arch/powerpc/platforms/512x/mpc512x.h b/arch/powerpc/platforms/512x/mpc512x.h index c32b399..2b97622 100644 --- a/arch/powerpc/platforms/512x/mpc512x.h +++ b/arch/powerpc/platforms/512x/mpc512x.h @@ -15,6 +15,7 @@ extern void __init mpc512x_init_IRQ(void); extern void __init mpc512x_init(void); extern int __init mpc5121_clk_init(void); void __init mpc512x_declare_of_platform_devices(void); +extern char *mpc512x_select_psc_compat(void); extern void mpc512x_restart(char *cmd); #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) diff --git a/arch/powerpc/platforms/512x/mpc512x_generic.c b/arch/powerpc/platforms/512x/mpc512x_generic.c index ca1ca66..1ca7b61 100644 --- a/arch/powerpc/platforms/512x/mpc512x_generic.c +++ b/arch/powerpc/platforms/512x/mpc512x_generic.c @@ -28,6 +28,7 @@ */ static const char * const board[] __initconst = { "prt,prtlvt", + "fsl,mpc5125ads", NULL }; diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index d30235b..fbf67e9 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -350,6 +350,21 @@ void __init mpc512x_declare_of_platform_devices(void) #define DEFAULT_FIFO_SIZE 16 +char *mpc512x_select_psc_compat(void) +{ + char *psc_compats[] = { + "fsl,mpc5121-psc", + "fsl,mpc5125-psc" + }; + int i; + + for (i = 0; i < ARRAY_SIZE(psc_compats); i++) + if (of_find_compatible_node(NULL, NULL, psc_compats[i])) + return psc_compats[i]; + + return NULL; +} + static unsigned int __init get_fifo_size(struct device_node *np, char *prop_name) { @@ -375,9 +390,16 @@ void __init mpc512x_psc_fifo_init(void) void __iomem *psc; unsigned int tx_fifo_size; unsigned int rx_fifo_size; + char *psc_compat; int fifobase = 0; /* current fifo address in 32 bit words */ - for_each_compatible_node(np, NULL, "fsl,mpc5121-psc") { + psc_compat = mpc512x_select_psc_compat(); + if (!psc_compat) { + pr_err("%s: no compatible devices found\n", __func__); + return; + } + + for_each_compatible_node(np, NULL, psc_compat) { tx_fifo_size = get_fifo_size(np, "fsl,tx-fifo-size"); rx_fifo_size = get_fifo_size(np, "fsl,rx-fifo-size");