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linux-sg2042/arch/m68k/coldfire/m5249.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/***************************************************************************/
/*
m68k: fix crufty ColdFire intro comments Quite a few of the ColdFire specific support files have a pathname in the title comments of the file. These files have moved around a bit over the years, and most are no longer accurate. Remove the pathname and fix the comments to include at least a short description of the files contents. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-08-19 09:55:24 +08:00
* m5249.c -- platform support for ColdFire 5249 based boards
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
* Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
m68knommu: platform setup for 5249 ColdFire parts Switch to platform style configuration for 5249 ColdFire parts. Initial support is for the UARTs. DMA support moved to common code for all ColdFire parts. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 15:34:30 +08:00
#include <linux/io.h>
m68knommu: merge common ColdFire QSPI platform setup code The ColdFire QSPI is common to quite a few ColdFire CPUs. No need to duplicate its platform setup code for every CPU family member that has it. Merge all the setup code into a single shared file. This also results in few platforms no longer needing any local platform setup code. In those cases remove the empty devices array and initcall code as well. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-12-24 10:56:10 +08:00
#include <linux/platform_device.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
m68knommu: add clock definitions for 5249 ColdFire CPU types Add a base set of clocks for the 5249 ColdFire CPU types. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-07-13 13:58:41 +08:00
#include <asm/mcfclk.h>
/***************************************************************************/
DEFINE_CLK(pll, "pll.0", MCF_CLK);
DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
DEFINE_CLK(mcftmr0, "mcftmr.0", MCF_BUSCLK);
DEFINE_CLK(mcftmr1, "mcftmr.1", MCF_BUSCLK);
DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
m68knommu: Add qspi clk for Coldfire SoCs without real clks. Since we now have fake clks on devices without real clocks, we need clks defined for qspi for the qspi driver to work on those devices. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2014-05-15 01:06:29 +08:00
DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK);
m68knommu: platform support for i2c devices on ColdFire SoC These changes based on work by Steven King <sfking@fdwdc.com> to support the i2c hardware modules on ColdFire SoC family devices. This is the per SoC hardware support. Contains a common platform device setup. Each of the SoC family members tends to have some minor local setup required to initialize the module. But all ColdFire family members use the same i2c hardware module. This i2c hardware module is the same as used in the Freescale iMX ARM based family of SoC devices. Steven's original patches were based on using a new and different i2c-coldfire.c driver. But this is not neccessary as we can use the existing Linux i2c-imx.c driver with no change required to it. And this patch is now based on using the existing i2c-imx driver. This patch only contains the ColdFire platform changes. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Tested-by: Angelo Dureghello <angelo@sysam.it>
2014-07-01 00:53:19 +08:00
DEFINE_CLK(mcfi2c0, "imx1-i2c.0", MCF_BUSCLK);
DEFINE_CLK(mcfi2c1, "imx1-i2c.1", MCF_BUSCLK);
m68knommu: add clock definitions for 5249 ColdFire CPU types Add a base set of clocks for the 5249 ColdFire CPU types. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-07-13 13:58:41 +08:00
struct clk *mcf_clks[] = {
&clk_pll,
&clk_sys,
&clk_mcftmr0,
&clk_mcftmr1,
&clk_mcfuart0,
&clk_mcfuart1,
m68knommu: Add qspi clk for Coldfire SoCs without real clks. Since we now have fake clks on devices without real clocks, we need clks defined for qspi for the qspi driver to work on those devices. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2014-05-15 01:06:29 +08:00
&clk_mcfqspi0,
m68knommu: platform support for i2c devices on ColdFire SoC These changes based on work by Steven King <sfking@fdwdc.com> to support the i2c hardware modules on ColdFire SoC family devices. This is the per SoC hardware support. Contains a common platform device setup. Each of the SoC family members tends to have some minor local setup required to initialize the module. But all ColdFire family members use the same i2c hardware module. This i2c hardware module is the same as used in the Freescale iMX ARM based family of SoC devices. Steven's original patches were based on using a new and different i2c-coldfire.c driver. But this is not neccessary as we can use the existing Linux i2c-imx.c driver with no change required to it. And this patch is now based on using the existing i2c-imx driver. This patch only contains the ColdFire platform changes. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Tested-by: Angelo Dureghello <angelo@sysam.it>
2014-07-01 00:53:19 +08:00
&clk_mcfi2c0,
&clk_mcfi2c1,
m68knommu: add clock definitions for 5249 ColdFire CPU types Add a base set of clocks for the 5249 ColdFire CPU types. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-07-13 13:58:41 +08:00
NULL
};
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/***************************************************************************/
m68knommu: add smc91x support to ColdFire 5249 platform The Freescale M5249EVB board is fitted with an SMC LAN91c11 ethernet device. Add platform support to the M5249EVB setup code to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-06-12 14:17:20 +08:00
#ifdef CONFIG_M5249C3
static struct resource m5249_smc91x_resources[] = {
{
.start = 0xe0000300,
.end = 0xe0000300 + 0x100,
.flags = IORESOURCE_MEM,
},
{
m68knommu: merge ColdFire 5249 and 525x definitions The ColdFire 5249 and 525x family of SoCs are very similar. Most of the internals are the same, and are mapped the same. We can use a single set of peripheral definitions for all of them. So merge the current m5249sim.h and m525xsim.h definitions into a single file. The 5249 is now obsolete, and the 525x parts are current, so I have chosen to move everything into the existing m525xsim.h file. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-19 11:52:12 +08:00
.start = MCF_IRQ_GPIO6,
.end = MCF_IRQ_GPIO6,
m68knommu: add smc91x support to ColdFire 5249 platform The Freescale M5249EVB board is fitted with an SMC LAN91c11 ethernet device. Add platform support to the M5249EVB setup code to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-06-12 14:17:20 +08:00
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device m5249_smc91x = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(m5249_smc91x_resources),
.resource = m5249_smc91x_resources,
};
#endif /* CONFIG_M5249C3 */
m68knommu: merge common ColdFire QSPI platform setup code The ColdFire QSPI is common to quite a few ColdFire CPUs. No need to duplicate its platform setup code for every CPU family member that has it. Merge all the setup code into a single shared file. This also results in few platforms no longer needing any local platform setup code. In those cases remove the empty devices array and initcall code as well. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-12-24 10:56:10 +08:00
static struct platform_device *m5249_devices[] __initdata = {
#ifdef CONFIG_M5249C3
&m5249_smc91x,
#endif
m68knommu: Coldfire QSPI platform support Since Grant has added the coldfire-qspi driver to next-spi, here is the platform support for the parts that have qspi hardware. This sets up gpio to do the spi chip select using the default chip select pins; it should be trivial for boards that require different or additional spi chip selects to use other gpios as needed. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-01-23 04:43:03 +08:00
};
m68knommu: merge common ColdFire QSPI platform setup code The ColdFire QSPI is common to quite a few ColdFire CPUs. No need to duplicate its platform setup code for every CPU family member that has it. Merge all the setup code into a single shared file. This also results in few platforms no longer needing any local platform setup code. In those cases remove the empty devices array and initcall code as well. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-12-24 10:56:10 +08:00
/***************************************************************************/
m68knommu: Coldfire QSPI platform support Since Grant has added the coldfire-qspi driver to next-spi, here is the platform support for the parts that have qspi hardware. This sets up gpio to do the spi chip select using the default chip select pins; it should be trivial for boards that require different or additional spi chip selects to use other gpios as needed. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-01-23 04:43:03 +08:00
static void __init m5249_qspi_init(void)
{
m68knommu: qspi declutter. Move the check for the QSPI config option inside the function body. If the option is not enabled, the compiler will optimize away the empty function body so we can remove the other check for the config option. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2014-05-15 01:07:55 +08:00
#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI)
m68knommu: Coldfire QSPI platform support Since Grant has added the coldfire-qspi driver to next-spi, here is the platform support for the parts that have qspi hardware. This sets up gpio to do the spi chip select using the default chip select pins; it should be trivial for boards that require different or additional spi chip selects to use other gpios as needed. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-01-23 04:43:03 +08:00
/* QSPI irq setup */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL4 | MCFSIM_ICR_PRI0,
m68knommu: make ColdFire Interrupt Source register definitions absolute addresses Make all definitions of the ColdFire Interrupt Source registers absolute addresses. Currently some are relative to the MBAR peripheral region. The various ColdFire parts use different methods to address the internal registers, some are absolute, some are relative to peripheral regions which can be mapped at different address ranges (such as the MBAR and IPSBAR registers). We don't want to deal with this in the code when we are accessing these registers, so make all register definitions the absolute address - factoring out whether it is an offset into a peripheral region. This makes them all consistently defined, and reduces the occasional bugs caused by inconsistent definition of the register addresses. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-08-17 14:48:16 +08:00
MCFSIM_QSPIICR);
m68knommu: Coldfire QSPI platform support Since Grant has added the coldfire-qspi driver to next-spi, here is the platform support for the parts that have qspi hardware. This sets up gpio to do the spi chip select using the default chip select pins; it should be trivial for boards that require different or additional spi chip selects to use other gpios as needed. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-01-23 04:43:03 +08:00
mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI);
m68knommu: enable qspi support when SPI_COLDFIRE_QSPI = m Enable Coldfire QSPI support when SPI_COLDFIRE_QSPI is built as a module. This version of the patch combines changes to the config files and device.c and uses IF_ENABLED (thanks to Sam Ravnborg for the suggestion). Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-05-07 03:22:53 +08:00
#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */
m68knommu: qspi declutter. Move the check for the QSPI config option inside the function body. If the option is not enabled, the compiler will optimize away the empty function body so we can remove the other check for the config option. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2014-05-15 01:07:55 +08:00
}
m68knommu: platform setup for 5249 ColdFire parts Switch to platform style configuration for 5249 ColdFire parts. Initial support is for the UARTs. DMA support moved to common code for all ColdFire parts. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 15:34:30 +08:00
/***************************************************************************/
m68knommu: platform support for i2c devices on ColdFire SoC These changes based on work by Steven King <sfking@fdwdc.com> to support the i2c hardware modules on ColdFire SoC family devices. This is the per SoC hardware support. Contains a common platform device setup. Each of the SoC family members tends to have some minor local setup required to initialize the module. But all ColdFire family members use the same i2c hardware module. This i2c hardware module is the same as used in the Freescale iMX ARM based family of SoC devices. Steven's original patches were based on using a new and different i2c-coldfire.c driver. But this is not neccessary as we can use the existing Linux i2c-imx.c driver with no change required to it. And this patch is now based on using the existing i2c-imx driver. This patch only contains the ColdFire platform changes. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Tested-by: Angelo Dureghello <angelo@sysam.it>
2014-07-01 00:53:19 +08:00
static void __init m5249_i2c_init(void)
{
#if IS_ENABLED(CONFIG_I2C_IMX)
u32 r;
/* first I2C controller uses regular irq setup */
writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0,
MCFSIM_I2CICR);
mcf_mapirq2imr(MCF_IRQ_I2C0, MCFINTC_I2C);
/* second I2C controller is completely different */
r = readl(MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1));
r &= ~MCFINTC2_INTPRI_BITS(0xf, MCF_IRQ_I2C1);
r |= MCFINTC2_INTPRI_BITS(0x5, MCF_IRQ_I2C1);
writel(r, MCFINTC2_INTPRI_REG(MCF_IRQ_I2C1));
#endif /* CONFIG_I2C_IMX */
}
/***************************************************************************/
m68knommu: add smc91x support to ColdFire 5249 platform The Freescale M5249EVB board is fitted with an SMC LAN91c11 ethernet device. Add platform support to the M5249EVB setup code to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-06-12 14:17:20 +08:00
#ifdef CONFIG_M5249C3
static void __init m5249_smc91x_init(void)
{
u32 gpio;
/* Set the GPIO line as interrupt source for smc91x device */
m68knommu: make ColdFire 5249 MBAR2 register definitions absolute addresses Make the ColdFire 5249 MBAR peripheral register definitions absolute addresses, instead of offsets into the region. The various ColdFire parts use different methods to address the internal registers, some are absolute, some are relative to peripheral regions which can be mapped at different address ranges (such as the MBAR and IPSBAR registers). We don't want to deal with this in the code when we are accessing these registers, so make all register definitions the absolute address - factoring out whether it is an offset into a peripheral region. This makes them all consistently defined, and reduces the occasional bugs caused by inconsistent definition of the register addresses. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-14 21:57:39 +08:00
gpio = readl(MCFSIM2_GPIOINTENABLE);
writel(gpio | 0x40, MCFSIM2_GPIOINTENABLE);
m68knommu: add smc91x support to ColdFire 5249 platform The Freescale M5249EVB board is fitted with an SMC LAN91c11 ethernet device. Add platform support to the M5249EVB setup code to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-06-12 14:17:20 +08:00
m68knommu: merge ColdFire 5249 and 525x definitions The ColdFire 5249 and 525x family of SoCs are very similar. Most of the internals are the same, and are mapped the same. We can use a single set of peripheral definitions for all of them. So merge the current m5249sim.h and m525xsim.h definitions into a single file. The 5249 is now obsolete, and the 525x parts are current, so I have chosen to move everything into the existing m525xsim.h file. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-19 11:52:12 +08:00
gpio = readl(MCFINTC2_INTPRI5);
writel(gpio | 0x04000000, MCFINTC2_INTPRI5);
m68knommu: add smc91x support to ColdFire 5249 platform The Freescale M5249EVB board is fitted with an SMC LAN91c11 ethernet device. Add platform support to the M5249EVB setup code to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-06-12 14:17:20 +08:00
}
#endif /* CONFIG_M5249C3 */
/***************************************************************************/
m68knommu: platform setup for 5249 ColdFire parts Switch to platform style configuration for 5249 ColdFire parts. Initial support is for the UARTs. DMA support moved to common code for all ColdFire parts. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 15:34:30 +08:00
void __init config_BSP(char *commandp, int size)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
m68knommu: modify timer init code to make it consistent with m68k code With a few small changes we can make the m68knommu timer init code the same as the m68k code. By using the mach_sched_init function pointer and reworking the current timer initializers to keep track of the common m68k timer_interrupt() handler we end up with almost identical code for m68knommu. This will allow us to more easily merge the mmu and non-mmu m68k time.c in future patches. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-01-23 13:34:58 +08:00
mach_sched_init = hw_timer_init;
m68knommu: factor some common ColdFire cpu reset code A number of the early ColdFire cores use the same code to reset the CPU. Currently that is duplicated in each of the sub-arch files. Pull out this common code and use a single copy of it for all CPU types that use it. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-02-19 14:16:58 +08:00
m68knommu: add smc91x support to ColdFire 5249 platform The Freescale M5249EVB board is fitted with an SMC LAN91c11 ethernet device. Add platform support to the M5249EVB setup code to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-06-12 14:17:20 +08:00
#ifdef CONFIG_M5249C3
m5249_smc91x_init();
#endif
m68knommu: Coldfire QSPI platform support Since Grant has added the coldfire-qspi driver to next-spi, here is the platform support for the parts that have qspi hardware. This sets up gpio to do the spi chip select using the default chip select pins; it should be trivial for boards that require different or additional spi chip selects to use other gpios as needed. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2010-01-23 04:43:03 +08:00
m5249_qspi_init();
m68knommu: platform support for i2c devices on ColdFire SoC These changes based on work by Steven King <sfking@fdwdc.com> to support the i2c hardware modules on ColdFire SoC family devices. This is the per SoC hardware support. Contains a common platform device setup. Each of the SoC family members tends to have some minor local setup required to initialize the module. But all ColdFire family members use the same i2c hardware module. This i2c hardware module is the same as used in the Freescale iMX ARM based family of SoC devices. Steven's original patches were based on using a new and different i2c-coldfire.c driver. But this is not neccessary as we can use the existing Linux i2c-imx.c driver with no change required to it. And this patch is now based on using the existing i2c-imx driver. This patch only contains the ColdFire platform changes. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Tested-by: Angelo Dureghello <angelo@sysam.it>
2014-07-01 00:53:19 +08:00
m5249_i2c_init();
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
/***************************************************************************/
m68knommu: platform setup for 5249 ColdFire parts Switch to platform style configuration for 5249 ColdFire parts. Initial support is for the UARTs. DMA support moved to common code for all ColdFire parts. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-01 15:34:30 +08:00
static int __init init_BSP(void)
{
platform_add_devices(m5249_devices, ARRAY_SIZE(m5249_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/