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5917bfa4c0
The 158MiB memory area was used to support HD resolution multimedia workloads using the same legacy memory allocating solution as on SH. There are no in-tree kernel dependencies on the 158MiB setting, and future development should reserve and allocate memory using some other method like for instance CMA. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Nicolas Pitre <nico@linaro.org>
417 lines
10 KiB
C
417 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/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/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 <asm/mach/map.h>
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#include <asm/mach/time.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(0xe6890008) | 0x600, 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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/* 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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static struct map_desc g4evm_io_desc[] __initdata = {
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/* create a 1:1 entity map for 0xe6xxxxxx
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* used by CPGA, INTC and PFC.
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*/
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{
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.virtual = 0xe6000000,
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.pfn = __phys_to_pfn(0xe6000000),
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.length = 256 << 20,
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.type = MT_DEVICE_NONSHARED
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},
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};
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static void __init g4evm_map_io(void)
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{
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iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
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/* setup early devices and console here as well */
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sh7377_add_early_devices();
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shmobile_setup_console();
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}
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#define GPIO_SDHID0_D0 0xe60520fc
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#define GPIO_SDHID0_D1 0xe60520fd
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#define GPIO_SDHID0_D2 0xe60520fe
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#define GPIO_SDHID0_D3 0xe60520ff
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#define GPIO_SDHICMD0 0xe6052100
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#define GPIO_SDHID1_D0 0xe6052103
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#define GPIO_SDHID1_D1 0xe6052104
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#define GPIO_SDHID1_D2 0xe6052105
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#define GPIO_SDHID1_D3 0xe6052106
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#define GPIO_SDHICMD1 0xe6052107
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/*
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* FIXME !!
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*
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* gpio_pull_up is quick_hack.
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*
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* current gpio frame work doesn't have
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* the method to control only pull up/down/free.
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* this function should be replaced by correct gpio function
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*/
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static void __init gpio_pull_up(u32 addr)
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{
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u8 data = __raw_readb(addr);
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data &= 0x0F;
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data |= 0xC0;
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__raw_writeb(data, addr);
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}
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static void __init g4evm_init(void)
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{
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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, 0xe605810a); /* USBCR1 */
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__raw_writew(0x00e0, 0xe60581c0); /* CPFCH */
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__raw_writew(0x6010, 0xe60581c6); /* CGPOSR */
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__raw_writew(0x8a0a, 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_pull_up(GPIO_SDHID0_D0);
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gpio_pull_up(GPIO_SDHID0_D1);
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gpio_pull_up(GPIO_SDHID0_D2);
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gpio_pull_up(GPIO_SDHID0_D3);
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gpio_pull_up(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_pull_up(GPIO_SDHID1_D0);
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gpio_pull_up(GPIO_SDHID1_D1);
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gpio_pull_up(GPIO_SDHID1_D2);
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gpio_pull_up(GPIO_SDHID1_D3);
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gpio_pull_up(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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static void __init g4evm_timer_init(void)
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{
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sh7377_clock_init();
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shmobile_timer.init();
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}
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static struct sys_timer g4evm_timer = {
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.init = g4evm_timer_init,
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};
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MACHINE_START(G4EVM, "g4evm")
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.map_io = g4evm_map_io,
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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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.timer = &g4evm_timer,
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MACHINE_END
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