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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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349 lines
7.5 KiB
C
349 lines
7.5 KiB
C
/*
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* arch/sh/boards/renesas/r7780rp/setup.c
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*
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* Renesas Solutions Highlander Support.
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*
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* Copyright (C) 2002 Atom Create Engineering Co., Ltd.
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* Copyright (C) 2005 - 2008 Paul Mundt
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*
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* This contains support for the R7780RP-1, R7780MP, and R7785RP
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* Highlander modules.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/ata_platform.h>
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#include <linux/types.h>
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#include <linux/i2c.h>
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#include <linux/irq.h>
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#include <net/ax88796.h>
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#include <asm/machvec.h>
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#include <mach/highlander.h>
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#include <asm/clock.h>
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#include <asm/heartbeat.h>
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#include <asm/io.h>
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#include <asm/io_trapped.h>
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static struct resource r8a66597_usb_host_resources[] = {
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[0] = {
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.name = "r8a66597_hcd",
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.start = 0xA4200000,
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.end = 0xA42000FF,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.name = "r8a66597_hcd",
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.start = IRQ_EXT1, /* irq number */
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.end = IRQ_EXT1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device r8a66597_usb_host_device = {
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.name = "r8a66597_hcd",
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.id = -1,
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.dev = {
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.dma_mask = NULL, /* don't use dma */
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(r8a66597_usb_host_resources),
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.resource = r8a66597_usb_host_resources,
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};
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static struct resource m66592_usb_peripheral_resources[] = {
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[0] = {
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.name = "m66592_udc",
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.start = 0xb0000000,
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.end = 0xb00000FF,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.name = "m66592_udc",
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.start = IRQ_EXT4, /* irq number */
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.end = IRQ_EXT4,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device m66592_usb_peripheral_device = {
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.name = "m66592_udc",
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.id = -1,
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.dev = {
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.dma_mask = NULL, /* don't use dma */
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(m66592_usb_peripheral_resources),
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.resource = m66592_usb_peripheral_resources,
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};
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static struct resource cf_ide_resources[] = {
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[0] = {
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.start = PA_AREA5_IO + 0x1000,
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.end = PA_AREA5_IO + 0x1000 + 0x08 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PA_AREA5_IO + 0x80c,
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.end = PA_AREA5_IO + 0x80c + 0x16 - 1,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = IRQ_CF,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct pata_platform_info pata_info = {
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.ioport_shift = 1,
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};
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static struct platform_device cf_ide_device = {
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.name = "pata_platform",
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.id = -1,
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.num_resources = ARRAY_SIZE(cf_ide_resources),
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.resource = cf_ide_resources,
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.dev = {
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.platform_data = &pata_info,
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},
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};
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static struct resource heartbeat_resources[] = {
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[0] = {
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.start = PA_OBLED,
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.end = PA_OBLED,
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.flags = IORESOURCE_MEM,
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},
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};
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#ifndef CONFIG_SH_R7785RP
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static unsigned char heartbeat_bit_pos[] = { 2, 1, 0, 3, 6, 5, 4, 7 };
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static struct heartbeat_data heartbeat_data = {
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.bit_pos = heartbeat_bit_pos,
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.nr_bits = ARRAY_SIZE(heartbeat_bit_pos),
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};
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#endif
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static struct platform_device heartbeat_device = {
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.name = "heartbeat",
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.id = -1,
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/* R7785RP has a slightly more sensible FPGA.. */
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#ifndef CONFIG_SH_R7785RP
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.dev = {
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.platform_data = &heartbeat_data,
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},
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#endif
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.num_resources = ARRAY_SIZE(heartbeat_resources),
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.resource = heartbeat_resources,
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};
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static struct ax_plat_data ax88796_platdata = {
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.flags = AXFLG_HAS_93CX6,
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.wordlength = 2,
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.dcr_val = 0x1,
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.rcr_val = 0x40,
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};
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static struct resource ax88796_resources[] = {
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{
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#ifdef CONFIG_SH_R7780RP
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.start = 0xa5800400,
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.end = 0xa5800400 + (0x20 * 0x2) - 1,
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#else
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.start = 0xa4100400,
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.end = 0xa4100400 + (0x20 * 0x2) - 1,
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#endif
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_AX88796,
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.end = IRQ_AX88796,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device ax88796_device = {
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.name = "ax88796",
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.id = 0,
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.dev = {
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.platform_data = &ax88796_platdata,
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},
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.num_resources = ARRAY_SIZE(ax88796_resources),
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.resource = ax88796_resources,
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};
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static struct resource smbus_resources[] = {
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[0] = {
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.start = PA_SMCR,
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.end = PA_SMCR + 0x100 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_SMBUS,
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.end = IRQ_SMBUS,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device smbus_device = {
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.name = "i2c-highlander",
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.id = 0,
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.num_resources = ARRAY_SIZE(smbus_resources),
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.resource = smbus_resources,
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};
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static struct i2c_board_info __initdata highlander_i2c_devices[] = {
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{
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I2C_BOARD_INFO("r2025sd", 0x32),
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},
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};
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static struct platform_device *r7780rp_devices[] __initdata = {
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&r8a66597_usb_host_device,
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&m66592_usb_peripheral_device,
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&heartbeat_device,
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&smbus_device,
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#ifndef CONFIG_SH_R7780RP
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&ax88796_device,
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#endif
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};
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/*
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* The CF is connected using a 16-bit bus where 8-bit operations are
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* unsupported. The linux ata driver is however using 8-bit operations, so
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* insert a trapped io filter to convert 8-bit operations into 16-bit.
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*/
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static struct trapped_io cf_trapped_io = {
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.resource = cf_ide_resources,
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.num_resources = 2,
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.minimum_bus_width = 16,
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};
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static int __init r7780rp_devices_setup(void)
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{
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int ret = 0;
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#ifndef CONFIG_SH_R7780RP
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if (register_trapped_io(&cf_trapped_io) == 0)
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ret |= platform_device_register(&cf_ide_device);
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#endif
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ret |= platform_add_devices(r7780rp_devices,
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ARRAY_SIZE(r7780rp_devices));
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ret |= i2c_register_board_info(0, highlander_i2c_devices,
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ARRAY_SIZE(highlander_i2c_devices));
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return ret;
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}
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device_initcall(r7780rp_devices_setup);
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/*
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* Platform specific clocks
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*/
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static void ivdr_clk_enable(struct clk *clk)
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{
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ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << IVDR_CK_ON), PA_IVDRCTL);
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}
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static void ivdr_clk_disable(struct clk *clk)
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{
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ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << IVDR_CK_ON), PA_IVDRCTL);
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}
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static struct clk_ops ivdr_clk_ops = {
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.enable = ivdr_clk_enable,
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.disable = ivdr_clk_disable,
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};
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static struct clk ivdr_clk = {
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.name = "ivdr_clk",
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.ops = &ivdr_clk_ops,
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};
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static struct clk *r7780rp_clocks[] = {
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&ivdr_clk,
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};
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static void r7780rp_power_off(void)
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{
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if (mach_is_r7780mp() || mach_is_r7785rp())
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ctrl_outw(0x0001, PA_POFF);
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}
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/*
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* Initialize the board
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*/
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static void __init highlander_setup(char **cmdline_p)
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{
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u16 ver = ctrl_inw(PA_VERREG);
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int i;
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printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
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mach_is_r7780rp() ? "R7780RP-1" :
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mach_is_r7780mp() ? "R7780MP" :
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"R7785RP");
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printk(KERN_INFO "Board version: %d (revision %d), "
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"FPGA version: %d (revision %d)\n",
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(ver >> 12) & 0xf, (ver >> 8) & 0xf,
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(ver >> 4) & 0xf, ver & 0xf);
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highlander_plat_pinmux_setup();
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/*
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* Enable the important clocks right away..
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*/
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for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) {
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struct clk *clk = r7780rp_clocks[i];
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clk_register(clk);
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clk_enable(clk);
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}
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ctrl_outw(0x0000, PA_OBLED); /* Clear LED. */
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if (mach_is_r7780rp())
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ctrl_outw(0x0001, PA_SDPOW); /* SD Power ON */
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ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL); /* Si13112 */
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pm_power_off = r7780rp_power_off;
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}
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static unsigned char irl2irq[HL_NR_IRL];
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static int highlander_irq_demux(int irq)
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{
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if (irq >= HL_NR_IRL || !irl2irq[irq])
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return irq;
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return irl2irq[irq];
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}
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static void __init highlander_init_irq(void)
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{
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unsigned char *ucp = highlander_plat_irq_setup();
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if (ucp) {
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plat_irq_setup_pins(IRQ_MODE_IRL3210);
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memcpy(irl2irq, ucp, HL_NR_IRL);
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}
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}
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/*
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* The Machine Vector
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*/
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static struct sh_machine_vector mv_highlander __initmv = {
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.mv_name = "Highlander",
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.mv_setup = highlander_setup,
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.mv_init_irq = highlander_init_irq,
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.mv_irq_demux = highlander_irq_demux,
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};
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