![Linus Torvalds](/assets/img/avatar_default.png)
This is a pretty significant branch. It's the introduction of the first multiplatform support on ARM, and with this (and the later branch) merged, it is now possible to build one kernel that contains support for highbank, vexpress, mvebu, socfpga, and picoxcell. More platforms will be convered over in the next few releases. Two critical last things had to be done for this to be practical and possible: * Today each platform has its own include directory under mach-<mach>/include/mach/*, and traditionally that is where a lot of driver/platform shared definitions have gone, such as platform data structures. They now need to move out to a common location instead, and this branch moves a large number of those out to include/linux/platform_data. * Each platform used to list the device trees to compile for its boards in mach-<mach>/Makefile.boot. Both of the above changes will mean that there are some merge conflicts to come (and some to resolve here). It's a one-time move and once it settles in, we should be good for quite a while. Sorry for the overhead. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJQaO7aAAoJEIwa5zzehBx3bUIP/02U8PhkHJJrrowyIsWRBOql 7LPJ53PRRgrpBdmEGzFD3TO3zaNyrjQRbYgNDvzHMO6NAMNvdRFouuWYjO11/tuB i32zssXCC+eUOEgbAo/U/lYq+UOvqw9gv6mU+3+i3OcGEhdKOaoT/DSLPQC4hoDm 222TeLfFB3HJXu5n720dEQ9V3fO6TS1+bbh8TU3cjHqzceXsOrffZqOA5CQxUcRr KWwOjA0nALDwWcqgv45GJNwY3GTyAQ/hPMQavnuWK0voJ+qUYk5HftKocAK7C+py 0T0OFOAHTwtyhvzJBxLC84M6Ox465BYXyeNjIB+2nG/Um9+mDoP0dnWpGy4c7DMU P5hyqbeLGeqjUXQuYtRmgMMc3UeHKoUGAfXW9eMsjLa6/M4NLGv//7E7LbZPpgMZ obkjwuesmcaYn/FRyj/yFmC35YlF4oCLziVzEtURZw3eKHHSUlhkTDSMNnkcZ0kZ Vv7kFxnD2Y46ixiwSJv30ErQnVkgI3MdqDlDxkE8r5+phYuK4gCrNaJtiwRh/oNw cFhpPxKuA0sJ9b6YRTzjC45eT/XZomEEr/uifCFeRNaCquyjYP00Mm8F0flSqwx9 zi+emzPAwNmk1bvxMUM/idGnaj0V4p+BAYUAvkbSoqU1p1flzyhU88fGTSIyKOt6 K5TCDS2v5hrVykK9TDwl =Tc6y -----END PGP SIGNATURE----- Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM soc multiplatform enablement from Olof Johansson: "This is a pretty significant branch. It's the introduction of the first multiplatform support on ARM, and with this (and the later branch) merged, it is now possible to build one kernel that contains support for highbank, vexpress, mvebu, socfpga, and picoxcell. More platforms will be convered over in the next few releases. Two critical last things had to be done for this to be practical and possible: * Today each platform has its own include directory under mach-<mach>/include/mach/*, and traditionally that is where a lot of driver/platform shared definitions have gone, such as platform data structures. They now need to move out to a common location instead, and this branch moves a large number of those out to include/linux/platform_data. * Each platform used to list the device trees to compile for its boards in mach-<mach>/Makefile.boot. Both of the above changes will mean that there are some merge conflicts to come (and some to resolve here). It's a one-time move and once it settles in, we should be good for quite a while. Sorry for the overhead." Fix conflicts as per Olof. * tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits) ARM: add v7 multi-platform defconfig ARM: msm: Move core.h contents into common.h ARM: highbank: call highbank_pm_init from .init_machine ARM: dtb: move all dtb targets to common Makefile ARM: spear: move platform_data definitions ARM: samsung: move platform_data definitions ARM: orion: move platform_data definitions ARM: vexpress: convert to multi-platform ARM: initial multiplatform support ARM: mvebu: move armada-370-xp.h in mach dir ARM: vexpress: remove dependency on mach/* headers ARM: picoxcell: remove dependency on mach/* headers ARM: move all dtb targets out of Makefile.boot ARM: picoxcell: move debug macros to include/debug ARM: socfpga: move debug macros to include/debug ARM: mvebu: move debug macros to include/debug ARM: vexpress: move debug macros to include/debug ARM: highbank: move debug macros to include/debug ARM: move debug macros to common location ARM: make mach/gpio.h headers optional ...
385 lines
10 KiB
C
385 lines
10 KiB
C
/*
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* G4EVM board support
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*
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* Copyright (C) 2010 Magnus Damm
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* Copyright (C) 2008 Yoshihiro Shimoda
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/machine.h>
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#include <linux/usb/r8a66597.h>
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#include <linux/io.h>
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#include <linux/input.h>
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#include <linux/input/sh_keysc.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/sh_mobile_sdhi.h>
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#include <linux/gpio.h>
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#include <linux/dma-mapping.h>
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#include <mach/irqs.h>
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#include <mach/sh7377.h>
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#include <mach/common.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include "sh-gpio.h"
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/*
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* SDHI
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*
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* SDHI0 : card detection is possible
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* SDHI1 : card detection is impossible
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*
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* [G4-MAIN-BOARD]
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* JP74 : short # DBG_2V8A for SDHI0
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* JP75 : NC # DBG_3V3A for SDHI0
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* JP76 : NC # DBG_3V3A_SD for SDHI0
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* JP77 : NC # 3V3A_SDIO for SDHI1
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* JP78 : short # DBG_2V8A for SDHI1
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* JP79 : NC # DBG_3V3A for SDHI1
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* JP80 : NC # DBG_3V3A_SD for SDHI1
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*
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* [G4-CORE-BOARD]
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* S32 : all off # to dissever from G3-CORE_DBG board
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* S33 : all off # to dissever from G3-CORE_DBG board
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*
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* [G3-CORE_DBG-BOARD]
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* S1 : all off # to dissever from G3-CORE_DBG board
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* S3 : all off # to dissever from G3-CORE_DBG board
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* S4 : all off # to dissever from G3-CORE_DBG board
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*/
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static struct mtd_partition nor_flash_partitions[] = {
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{
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.name = "loader",
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.offset = 0x00000000,
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.size = 512 * 1024,
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},
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{
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.name = "bootenv",
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.offset = MTDPART_OFS_APPEND,
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.size = 512 * 1024,
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},
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{
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.name = "kernel_ro",
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.offset = MTDPART_OFS_APPEND,
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.size = 8 * 1024 * 1024,
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.mask_flags = MTD_WRITEABLE,
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},
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{
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.name = "kernel",
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.offset = MTDPART_OFS_APPEND,
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.size = 8 * 1024 * 1024,
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},
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{
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.name = "data",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct physmap_flash_data nor_flash_data = {
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.width = 2,
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.parts = nor_flash_partitions,
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.nr_parts = ARRAY_SIZE(nor_flash_partitions),
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};
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static struct resource nor_flash_resources[] = {
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[0] = {
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.start = 0x00000000,
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.end = 0x08000000 - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device nor_flash_device = {
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.name = "physmap-flash",
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.dev = {
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.platform_data = &nor_flash_data,
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},
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.num_resources = ARRAY_SIZE(nor_flash_resources),
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.resource = nor_flash_resources,
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};
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/* USBHS */
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static void usb_host_port_power(int port, int power)
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{
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if (!power) /* only power-on supported for now */
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return;
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/* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
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__raw_writew(__raw_readw(IOMEM(0xe6890008)) | 0x600, IOMEM(0xe6890008));
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}
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static struct r8a66597_platdata usb_host_data = {
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.on_chip = 1,
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.port_power = usb_host_port_power,
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};
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static struct resource usb_host_resources[] = {
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[0] = {
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.name = "USBHS",
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.start = 0xe6890000,
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.end = 0xe68900e5,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = evt2irq(0x0a20), /* USBHS_USHI0 */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device usb_host_device = {
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.name = "r8a66597_hcd",
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.id = 0,
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.dev = {
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.platform_data = &usb_host_data,
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.dma_mask = NULL,
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(usb_host_resources),
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.resource = usb_host_resources,
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};
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/* KEYSC */
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static struct sh_keysc_info keysc_info = {
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.mode = SH_KEYSC_MODE_5,
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.scan_timing = 3,
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.delay = 100,
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.keycodes = {
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KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
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KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
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KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
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KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
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KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
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KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
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KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
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},
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};
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static struct resource keysc_resources[] = {
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[0] = {
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.name = "KEYSC",
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.start = 0xe61b0000,
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.end = 0xe61b000f,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = evt2irq(0x0be0), /* KEYSC_KEY */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device keysc_device = {
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.name = "sh_keysc",
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.id = 0, /* keysc0 clock */
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.num_resources = ARRAY_SIZE(keysc_resources),
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.resource = keysc_resources,
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.dev = {
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.platform_data = &keysc_info,
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},
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};
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/* Fixed 3.3V regulator to be used by SDHI0 and SDHI1 */
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static struct regulator_consumer_supply fixed3v3_power_consumers[] =
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{
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REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
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REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
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REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
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REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"),
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};
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/* SDHI */
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static struct sh_mobile_sdhi_info sdhi0_info = {
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.tmio_caps = MMC_CAP_SDIO_IRQ,
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};
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static struct resource sdhi0_resources[] = {
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[0] = {
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.name = "SDHI0",
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.start = 0xe6d50000,
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.end = 0xe6d500ff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = evt2irq(0x0e00), /* SDHI0 */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device sdhi0_device = {
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.name = "sh_mobile_sdhi",
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.num_resources = ARRAY_SIZE(sdhi0_resources),
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.resource = sdhi0_resources,
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.id = 0,
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.dev = {
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.platform_data = &sdhi0_info,
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},
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};
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static struct sh_mobile_sdhi_info sdhi1_info = {
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.tmio_caps = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
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};
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static struct resource sdhi1_resources[] = {
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[0] = {
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.name = "SDHI1",
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.start = 0xe6d60000,
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.end = 0xe6d600ff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = evt2irq(0x0e80), /* SDHI1 */
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device sdhi1_device = {
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.name = "sh_mobile_sdhi",
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.num_resources = ARRAY_SIZE(sdhi1_resources),
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.resource = sdhi1_resources,
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.id = 1,
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.dev = {
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.platform_data = &sdhi1_info,
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},
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};
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static struct platform_device *g4evm_devices[] __initdata = {
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&nor_flash_device,
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&usb_host_device,
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&keysc_device,
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&sdhi0_device,
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&sdhi1_device,
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};
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#define GPIO_SDHID0_D0 IOMEM(0xe60520fc)
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#define GPIO_SDHID0_D1 IOMEM(0xe60520fd)
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#define GPIO_SDHID0_D2 IOMEM(0xe60520fe)
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#define GPIO_SDHID0_D3 IOMEM(0xe60520ff)
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#define GPIO_SDHICMD0 IOMEM(0xe6052100)
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#define GPIO_SDHID1_D0 IOMEM(0xe6052103)
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#define GPIO_SDHID1_D1 IOMEM(0xe6052104)
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#define GPIO_SDHID1_D2 IOMEM(0xe6052105)
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#define GPIO_SDHID1_D3 IOMEM(0xe6052106)
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#define GPIO_SDHICMD1 IOMEM(0xe6052107)
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static void __init g4evm_init(void)
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{
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regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
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ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
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sh7377_pinmux_init();
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/* Lit DS14 LED */
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gpio_request(GPIO_PORT109, NULL);
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gpio_direction_output(GPIO_PORT109, 1);
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gpio_export(GPIO_PORT109, 1);
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/* Lit DS15 LED */
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gpio_request(GPIO_PORT110, NULL);
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gpio_direction_output(GPIO_PORT110, 1);
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gpio_export(GPIO_PORT110, 1);
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/* Lit DS16 LED */
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gpio_request(GPIO_PORT112, NULL);
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gpio_direction_output(GPIO_PORT112, 1);
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gpio_export(GPIO_PORT112, 1);
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/* Lit DS17 LED */
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gpio_request(GPIO_PORT113, NULL);
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gpio_direction_output(GPIO_PORT113, 1);
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gpio_export(GPIO_PORT113, 1);
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/* USBHS */
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gpio_request(GPIO_FN_VBUS_0, NULL);
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gpio_request(GPIO_FN_PWEN, NULL);
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gpio_request(GPIO_FN_OVCN, NULL);
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gpio_request(GPIO_FN_OVCN2, NULL);
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gpio_request(GPIO_FN_EXTLP, NULL);
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gpio_request(GPIO_FN_IDIN, NULL);
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/* setup USB phy */
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__raw_writew(0x0200, IOMEM(0xe605810a)); /* USBCR1 */
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__raw_writew(0x00e0, IOMEM(0xe60581c0)); /* CPFCH */
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__raw_writew(0x6010, IOMEM(0xe60581c6)); /* CGPOSR */
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__raw_writew(0x8a0a, IOMEM(0xe605810c)); /* USBCR2 */
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/* KEYSC @ CN31 */
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gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
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gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
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gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
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gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
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gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
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gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
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gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
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gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
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gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
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gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
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gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
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gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
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gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
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/* SDHI0 */
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gpio_request(GPIO_FN_SDHICLK0, NULL);
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gpio_request(GPIO_FN_SDHICD0, NULL);
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gpio_request(GPIO_FN_SDHID0_0, NULL);
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gpio_request(GPIO_FN_SDHID0_1, NULL);
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gpio_request(GPIO_FN_SDHID0_2, NULL);
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gpio_request(GPIO_FN_SDHID0_3, NULL);
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gpio_request(GPIO_FN_SDHICMD0, NULL);
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gpio_request(GPIO_FN_SDHIWP0, NULL);
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gpio_request_pullup(GPIO_SDHID0_D0);
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gpio_request_pullup(GPIO_SDHID0_D1);
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gpio_request_pullup(GPIO_SDHID0_D2);
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gpio_request_pullup(GPIO_SDHID0_D3);
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gpio_request_pullup(GPIO_SDHICMD0);
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/* SDHI1 */
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gpio_request(GPIO_FN_SDHICLK1, NULL);
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gpio_request(GPIO_FN_SDHID1_0, NULL);
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gpio_request(GPIO_FN_SDHID1_1, NULL);
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gpio_request(GPIO_FN_SDHID1_2, NULL);
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gpio_request(GPIO_FN_SDHID1_3, NULL);
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gpio_request(GPIO_FN_SDHICMD1, NULL);
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gpio_request_pullup(GPIO_SDHID1_D0);
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gpio_request_pullup(GPIO_SDHID1_D1);
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gpio_request_pullup(GPIO_SDHID1_D2);
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gpio_request_pullup(GPIO_SDHID1_D3);
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gpio_request_pullup(GPIO_SDHICMD1);
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sh7377_add_standard_devices();
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platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
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}
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MACHINE_START(G4EVM, "g4evm")
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.map_io = sh7377_map_io,
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.init_early = sh7377_add_early_devices,
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.init_irq = sh7377_init_irq,
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.handle_irq = shmobile_handle_irq_intc,
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.init_machine = g4evm_init,
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.init_late = shmobile_init_late,
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.timer = &shmobile_timer,
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MACHINE_END
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