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linux/arch/m68k/coldfire/m527x.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!
2005-04-16 22:20:36 +00:00
/***************************************************************************/
/*
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 01:55:24 +00:00
* m527x.c -- platform support for ColdFire 527x 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!
2005-04-16 22:20:36 +00:00
*
Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 01:57:33 +00:00
* Sub-architcture dependent initialization code for the Freescale
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 01:55:24 +00:00
* 5270/5271 and 5274/5275 CPUs.
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!
2005-04-16 22:20:36 +00:00
*
* Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com)
* Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com)
*/
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
m68knommu: platform setup for 527x ColdFire parts Switch to platform style configuration for 527x 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 07:34:40 +00:00
#include <linux/io.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!
2005-04-16 22:20:36 +00:00
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
m68knommu: platform setup for 527x ColdFire parts Switch to platform style configuration for 527x 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 07:34:40 +00:00
#include <asm/mcfuart.h>
m68knommu: add clock definitions for 527x ColdFire CPU types Add a base set of clocks for the 527x ColdFire CPU types. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-07-13 06:03:52 +00:00
#include <asm/mcfclk.h>
/***************************************************************************/
DEFINE_CLK(pll, "pll.0", MCF_CLK);
DEFINE_CLK(sys, "sys.0", MCF_BUSCLK);
DEFINE_CLK(mcfpit0, "mcfpit.0", MCF_CLK);
DEFINE_CLK(mcfpit1, "mcfpit.1", MCF_CLK);
DEFINE_CLK(mcfpit2, "mcfpit.2", MCF_CLK);
DEFINE_CLK(mcfpit3, "mcfpit.3", MCF_CLK);
DEFINE_CLK(mcfuart0, "mcfuart.0", MCF_BUSCLK);
DEFINE_CLK(mcfuart1, "mcfuart.1", MCF_BUSCLK);
DEFINE_CLK(mcfuart2, "mcfuart.2", 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>
2014-05-14 17:06:29 +00:00
DEFINE_CLK(mcfqspi0, "mcfqspi.0", MCF_BUSCLK);
m68knommu: add clock definitions for 527x ColdFire CPU types Add a base set of clocks for the 527x ColdFire CPU types. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-07-13 06:03:52 +00:00
DEFINE_CLK(fec0, "fec.0", MCF_BUSCLK);
DEFINE_CLK(fec1, "fec.1", MCF_BUSCLK);
struct clk *mcf_clks[] = {
&clk_pll,
&clk_sys,
&clk_mcfpit0,
&clk_mcfpit1,
&clk_mcfpit2,
&clk_mcfpit3,
&clk_mcfuart0,
&clk_mcfuart1,
&clk_mcfuart2,
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>
2014-05-14 17:06:29 +00:00
&clk_mcfqspi0,
m68knommu: add clock definitions for 527x ColdFire CPU types Add a base set of clocks for the 527x ColdFire CPU types. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-07-13 06:03:52 +00:00
&clk_fec0,
&clk_fec1,
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!
2005-04-16 22:20:36 +00:00
/***************************************************************************/
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>
2010-01-22 20:43:03 +00:00
static void __init m527x_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>
2014-05-14 17:07:55 +00:00
#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>
2010-01-22 20:43:03 +00:00
#if defined(CONFIG_M5271)
u16 par;
/* setup QSPS pins for QSPI with gpio CS control */
writeb(0x1f, MCFGPIO_PAR_QSPI);
/* and CS2 & CS3 as gpio */
par = readw(MCFGPIO_PAR_TIMER);
par &= 0x3f3f;
writew(par, MCFGPIO_PAR_TIMER);
#elif defined(CONFIG_M5275)
/* setup QSPS pins for QSPI with gpio CS control */
writew(0x003e, MCFGPIO_PAR_QSPI);
#endif
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>
2012-05-06 19:22:53 +00:00
#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>
2014-05-14 17:07:55 +00:00
}
m68knommu: platform setup for 527x ColdFire parts Switch to platform style configuration for 527x 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 07:34:40 +00:00
/***************************************************************************/
m68knommu: simplify the 527x UART setup code Simplify the UART setup code so that it no longer loops for each UART present. Just make it do all the work it needs in a single function. This will make the code easier to share when we move to a single set of platform data for ColdFire UARTs. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-12-23 14:59:03 +00:00
static void __init m527x_uarts_init(void)
m68knommu: platform setup for 527x ColdFire parts Switch to platform style configuration for 527x 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 07:34:40 +00:00
{
u16 sepmask;
/*
* External Pin Mask Setting & Enable External Pin for Interface
*/
m68knommu: remove address offsets relative to IPSBAR for ColdFire 527x Remove the last address definitions relative to the IPSBAR peripheral region for the ColdFire 527x family. This involved cleaning up some magic numbers used in the code part, and making them proper register definitions in the 527x specific header. This is part of the process of cleaning up the ColdFire register definitions to make them consistently use absolute addresses for the primary registers. This will reduce the occasional bugs caused by inconsistent definition of the register addresses. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-17 02:07:21 +00:00
sepmask = readw(MCFGPIO_PAR_UART);
m68knommu: simplify the 527x UART setup code Simplify the UART setup code so that it no longer loops for each UART present. Just make it do all the work it needs in a single function. This will make the code easier to share when we move to a single set of platform data for ColdFire UARTs. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-12-23 14:59:03 +00:00
sepmask |= UART0_ENABLE_MASK | UART1_ENABLE_MASK | UART2_ENABLE_MASK;
m68knommu: remove address offsets relative to IPSBAR for ColdFire 527x Remove the last address definitions relative to the IPSBAR peripheral region for the ColdFire 527x family. This involved cleaning up some magic numbers used in the code part, and making them proper register definitions in the 527x specific header. This is part of the process of cleaning up the ColdFire register definitions to make them consistently use absolute addresses for the primary registers. This will reduce the occasional bugs caused by inconsistent definition of the register addresses. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-17 02:07:21 +00:00
writew(sepmask, MCFGPIO_PAR_UART);
m68knommu: platform setup for 527x ColdFire parts Switch to platform style configuration for 527x 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 07:34:40 +00:00
}
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!
2005-04-16 22:20:36 +00:00
/***************************************************************************/
fec: add FEC platform support to ColdFire CPU's setup code m68knommu: add FEC platform support to ColdFire CPU's setup code Move the per-CPU FEC driver setup code into the actual platform setup code for each ColdFire CPU varient. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 06:40:38 +00:00
static void __init m527x_fec_init(void)
{
u8 v;
/* Set multi-function pins to ethernet mode for fec0 */
m68knommu: Fixed GPIO pin initialization for CONFIG_M5271 FEC. This processor only have one FEC and its MDIO pins are located at a different offset than the code used for the current CONFIG_M527x. Tesed on M5271EVB eval platform. Without this patch the FEC driver will report no PHY attached if the bootloader does not pre-initialize the PAR_FECI2C GPIO register. Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-04-08 01:51:27 +00:00
#if defined(CONFIG_M5271)
m68knommu: remove address offsets relative to IPSBAR for ColdFire 527x Remove the last address definitions relative to the IPSBAR peripheral region for the ColdFire 527x family. This involved cleaning up some magic numbers used in the code part, and making them proper register definitions in the 527x specific header. This is part of the process of cleaning up the ColdFire register definitions to make them consistently use absolute addresses for the primary registers. This will reduce the occasional bugs caused by inconsistent definition of the register addresses. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-17 02:07:21 +00:00
v = readb(MCFGPIO_PAR_FECI2C);
writeb(v | 0xf0, MCFGPIO_PAR_FECI2C);
m68knommu: Fixed GPIO pin initialization for CONFIG_M5271 FEC. This processor only have one FEC and its MDIO pins are located at a different offset than the code used for the current CONFIG_M527x. Tesed on M5271EVB eval platform. Without this patch the FEC driver will report no PHY attached if the bootloader does not pre-initialize the PAR_FECI2C GPIO register. Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2009-04-08 01:51:27 +00:00
#else
m68knommu: fix fec setup warning for ColdFire 5271 builds Building for the ColdFire 5271 produces the following warning: arch/m68k/coldfire/m527x.c: In function ‘m527x_fec_init’: arch/m68k/coldfire/m527x.c:95:6: warning: unused variable ‘par’ Fix it by moving the definition of par inside the 5271 conditional code. Reported-by: ertheb <3rth3bnospam@ethe.fr> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2015-03-24 01:08:22 +00:00
u16 par;
m68knommu: remove address offsets relative to IPSBAR for ColdFire 527x Remove the last address definitions relative to the IPSBAR peripheral region for the ColdFire 527x family. This involved cleaning up some magic numbers used in the code part, and making them proper register definitions in the 527x specific header. This is part of the process of cleaning up the ColdFire register definitions to make them consistently use absolute addresses for the primary registers. This will reduce the occasional bugs caused by inconsistent definition of the register addresses. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-17 02:07:21 +00:00
par = readw(MCFGPIO_PAR_FECI2C);
writew(par | 0xf00, MCFGPIO_PAR_FECI2C);
v = readb(MCFGPIO_PAR_FEC0HL);
writeb(v | 0xc0, MCFGPIO_PAR_FEC0HL);
fec: add FEC platform support to ColdFire CPU's setup code m68knommu: add FEC platform support to ColdFire CPU's setup code Move the per-CPU FEC driver setup code into the actual platform setup code for each ColdFire CPU varient. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 06:40:38 +00:00
/* Set multi-function pins to ethernet mode for fec1 */
m68knommu: remove address offsets relative to IPSBAR for ColdFire 527x Remove the last address definitions relative to the IPSBAR peripheral region for the ColdFire 527x family. This involved cleaning up some magic numbers used in the code part, and making them proper register definitions in the 527x specific header. This is part of the process of cleaning up the ColdFire register definitions to make them consistently use absolute addresses for the primary registers. This will reduce the occasional bugs caused by inconsistent definition of the register addresses. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2012-09-17 02:07:21 +00:00
par = readw(MCFGPIO_PAR_FECI2C);
writew(par | 0xa0, MCFGPIO_PAR_FECI2C);
v = readb(MCFGPIO_PAR_FEC1HL);
writeb(v | 0xc0, MCFGPIO_PAR_FEC1HL);
fec: add FEC platform support to ColdFire CPU's setup code m68knommu: add FEC platform support to ColdFire CPU's setup code Move the per-CPU FEC driver setup code into the actual platform setup code for each ColdFire CPU varient. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 06:40:38 +00:00
#endif
}
/***************************************************************************/
m68knommu: platform setup for 527x ColdFire parts Switch to platform style configuration for 527x 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 07:34:40 +00:00
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!
2005-04-16 22:20:36 +00:00
{
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 05:34:58 +00:00
mach_sched_init = hw_timer_init;
fec: add FEC platform support to ColdFire CPU's setup code m68knommu: add FEC platform support to ColdFire CPU's setup code Move the per-CPU FEC driver setup code into the actual platform setup code for each ColdFire CPU varient. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-27 06:40:38 +00:00
m527x_uarts_init();
m527x_fec_init();
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>
2010-01-22 20:43:03 +00:00
m527x_qspi_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!
2005-04-16 22:20:36 +00:00
}
/***************************************************************************/
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