sh: Preliminary SDK7786 board support.
This stubs in some preliminary board support for the RTE SDK7786. This is quite stunted at the moment, and primarily builds on top of the system FPGA. FPGA IRQs are handled via CPU IRL masking for simplicity, with initial peripheral support restricted to the debug ethernet. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
parent
e44d6c4010
commit
02bf6cc72c
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@ -83,6 +83,7 @@ defaultimage-$(CONFIG_SH_AP325RXA) := uImage
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defaultimage-$(CONFIG_SH_7724_SOLUTION_ENGINE) := uImage
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defaultimage-$(CONFIG_SH_7206_SOLUTION_ENGINE) := vmlinux
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defaultimage-$(CONFIG_SH_7619_SOLUTION_ENGINE) := vmlinux
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defaultimage-$(CONFIG_SH_SDK7786) := vmlinux.bin
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# Set some sensible Kbuild defaults
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KBUILD_IMAGE := $(defaultimage-y)
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@ -143,6 +144,7 @@ machdir-$(CONFIG_SH_AP325RXA) += mach-ap325rxa
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machdir-$(CONFIG_SH_KFR2R09) += mach-kfr2r09
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machdir-$(CONFIG_SH_ECOVEC) += mach-ecovec24
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machdir-$(CONFIG_SH_SDK7780) += mach-sdk7780
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machdir-$(CONFIG_SH_SDK7786) += mach-sdk7786
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machdir-$(CONFIG_SH_X3PROTO) += mach-x3proto
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machdir-$(CONFIG_SH_SH7763RDP) += mach-sh7763rdp
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machdir-$(CONFIG_SH_SH4202_MICRODEV) += mach-microdev
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@ -150,6 +150,13 @@ config SH_SDK7780
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Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
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evaluation board.
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config SH_SDK7786
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bool "SDK7786"
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depends on CPU_SUBTYPE_SH7786
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help
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Select SDK7786 if configuring for a Renesas Technology Europe
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SH7786-65nm board.
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config SH_HIGHLANDER
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bool "Highlander"
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depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
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@ -0,0 +1 @@
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obj-y := setup.o
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@ -0,0 +1,219 @@
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/*
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* Renesas Technology Europe SDK7786 Support.
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*
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* Copyright (C) 2010 Matt Fleming
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* Copyright (C) 2010 Paul Mundt
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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/io.h>
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#include <linux/smsc911x.h>
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#include <linux/i2c.h>
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#include <linux/irq.h>
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#include <asm/machvec.h>
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#include <asm/sizes.h>
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static struct resource smsc911x_resources[] = {
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[0] = {
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.name = "smsc911x-memory",
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.start = 0x07ffff00,
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.end = 0x07ffff00 + SZ_256 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.name = "smsc911x-irq",
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.start = evt2irq(0x2c0),
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.end = evt2irq(0x2c0),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct smsc911x_platform_config smsc911x_config = {
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
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.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
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.flags = SMSC911X_USE_32BIT,
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.phy_interface = PHY_INTERFACE_MODE_MII,
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};
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static struct platform_device smsc911x_device = {
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.name = "smsc911x",
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.id = -1,
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.num_resources = ARRAY_SIZE(smsc911x_resources),
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.resource = smsc911x_resources,
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.dev = {
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.platform_data = &smsc911x_config,
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},
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};
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static struct resource smbus_fpga_resource = {
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.start = 0x07fff9e0,
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.end = 0x07fff9e0 + SZ_32 - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device smbus_fpga_device = {
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.name = "i2c-sdk7786",
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.id = 0,
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.num_resources = 1,
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.resource = &smbus_fpga_resource,
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};
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static struct resource smbus_pcie_resource = {
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.start = 0x07fffc30,
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.end = 0x07fffc30 + SZ_32 - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device smbus_pcie_device = {
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.name = "i2c-sdk7786",
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.id = 1,
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.num_resources = 1,
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.resource = &smbus_pcie_resource,
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};
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static struct i2c_board_info __initdata sdk7786_i2c_devices[] = {
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{
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I2C_BOARD_INFO("max6900", 0x68),
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},
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};
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static struct platform_device *sh7786_devices[] __initdata = {
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&smsc911x_device,
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&smbus_fpga_device,
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&smbus_pcie_device,
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};
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#define SBCR_REGS_BASE 0x07fff990
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#define SCBR_I2CMEN (1 << 0) /* FPGA I2C master enable */
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#define SCBR_I2CCEN (1 << 1) /* CPU I2C master enable */
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static int sdk7786_i2c_setup(void)
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{
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void __iomem *sbcr;
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unsigned int tmp;
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sbcr = ioremap_nocache(SBCR_REGS_BASE, SZ_16);
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/*
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* Hand over I2C control to the FPGA.
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*/
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tmp = ioread16(sbcr);
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tmp &= ~SCBR_I2CCEN;
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tmp |= SCBR_I2CMEN;
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iowrite16(tmp, sbcr);
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iounmap(sbcr);
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return i2c_register_board_info(0, sdk7786_i2c_devices,
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ARRAY_SIZE(sdk7786_i2c_devices));
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}
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static int __init sdk7786_devices_setup(void)
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{
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int ret;
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ret = platform_add_devices(sh7786_devices, ARRAY_SIZE(sh7786_devices));
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if (unlikely(ret != 0))
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return ret;
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return sdk7786_i2c_setup();
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}
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__initcall(sdk7786_devices_setup);
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#define FPGA_REGS_BASE 0x07fff800
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#define FPGA_REGS_SIZE 1152
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#define INTASR 0x010
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#define INTAMR 0x020
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#define INTBSR 0x090
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#define INTBMR 0x0a0
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#define INTMSR 0x130
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#define IASELR1 0x210
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#define IASELR2 0x220
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#define IASELR3 0x230
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#define IASELR4 0x240
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#define IASELR5 0x250
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#define IASELR6 0x260
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#define IASELR7 0x270
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#define IASELR8 0x280
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#define IASELR9 0x290
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#define IASELR10 0x2a0
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#define IASELR11 0x2b0
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#define IASELR12 0x2c0
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#define IASELR13 0x2d0
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#define IASELR14 0x2e0
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#define IASELR15 0x2f0
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static void __iomem *fpga_regs;
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static u16 fpga_read_reg(unsigned int reg)
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{
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return __raw_readw(fpga_regs + reg);
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}
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static void fpga_write_reg(u16 val, unsigned int reg)
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{
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__raw_writew(val, fpga_regs + reg);
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}
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enum {
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ATA_IRQ_BIT = 1,
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SPI_BUSY_BIT = 2,
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LIRQ5_BIT = 3,
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LIRQ6_BIT = 4,
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LIRQ7_BIT = 5,
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LIRQ8_BIT = 6,
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KEY_IRQ_BIT = 7,
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PEN_IRQ_BIT = 8,
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ETH_IRQ_BIT = 9,
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RTC_ALARM_BIT = 10,
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CRYSTAL_FAIL_BIT = 12,
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ETH_PME_BIT = 14,
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};
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static void __init init_sdk7786_IRQ(void)
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{
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unsigned int tmp;
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fpga_regs = ioremap_nocache(FPGA_REGS_BASE, FPGA_REGS_SIZE);
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if (!fpga_regs) {
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printk(KERN_ERR "Couldn't map FPGA registers\n");
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return;
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}
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/* Enable priority encoding for all IRLs */
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fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR);
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/* Clear FPGA interrupt status registers */
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fpga_write_reg(0x0000, INTASR);
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fpga_write_reg(0x0000, INTBSR);
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/* Unmask FPGA interrupts */
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tmp = fpga_read_reg(INTAMR);
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tmp &= ~(1 << ETH_IRQ_BIT);
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fpga_write_reg(tmp, INTAMR);
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plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK);
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plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
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}
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/* Initialize the board */
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static void __init sdk7786_setup(char **cmdline_p)
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{
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printk(KERN_INFO "Renesas Technology Corp. SDK7786 support.\n");
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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_sdk7786 __initmv = {
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.mv_name = "SDK7786",
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.mv_setup = sdk7786_setup,
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.mv_init_irq = init_sdk7786_IRQ,
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};
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File diff suppressed because it is too large
Load Diff
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@ -32,6 +32,7 @@ DREAMCAST SH_DREAMCAST
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SNAPGEAR SH_SECUREEDGE5410
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EDOSK7705 SH_EDOSK7705
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EDOSK7760 SH_EDOSK7760
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SDK7786 SH_SDK7786
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SH4202_MICRODEV SH_SH4202_MICRODEV
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SH03 SH_SH03
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LANDISK SH_LANDISK
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