i.MX6Q is freescale quad core processors with ARM cortex_a9 complex. This patch is to add the initial support for this processor.
Signed-off-by: Jason Liu jason.hui@linaro.org
arch/arm/cpu/armv7/mx6/Makefile | 48 + arch/arm/cpu/armv7/mx6/clock.c | 388 +++++++ arch/arm/cpu/armv7/mx6/iomux-v3.c | 76 ++ arch/arm/cpu/armv7/mx6/lowlevel_init.S | 60 + arch/arm/cpu/armv7/mx6/soc.c | 57 + arch/arm/include/asm/arch-mx6/ccm_regs.h | 894 +++++++++++++++ arch/arm/include/asm/arch-mx6/clock.h | 50 + arch/arm/include/asm/arch-mx6/gpio.h | 35 + arch/arm/include/asm/arch-mx6/imx-regs.h | 233 ++++ arch/arm/include/asm/arch-mx6/iomux-v3.h | 104 ++ arch/arm/include/asm/arch-mx6/mx6x_pins.h | 1683 +++++++++++++++++++++++++++++ arch/arm/include/asm/arch-mx6/sys_proto.h | 38 + 12 files changed, 3666 insertions(+), 0 deletions(-)
[...]
diff --git a/arch/arm/cpu/armv7/mx6/lowlevel_init.S b/arch/arm/cpu/armv7/mx6/lowlevel_init.S new file mode 100644 index 0000000..7a03f59 --- /dev/null +++ b/arch/arm/cpu/armv7/mx6/lowlevel_init.S @@ -0,0 +1,60 @@ +/*
- Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- */
+#include <config.h> +#include <asm/arch/imx-regs.h>
+/*
- AIPS setup - Only setup MPROTx registers.
- Set all MPROTx to be non-bufferable,
- trusted for R/W, not forced to user-mode.
- The PACR default values are good.
- */
+.macro init_aips
- ldr r0, =AIPS1_ON_BASE_ADDR
- ldr r1, =0x77777777
- str r1, [r0, #0x0]
- str r1, [r0, #0x4]
- ldr r1, =0x0
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
- ldr r0, =AIPS2_ON_BASE_ADDR
- ldr r1, =0x77777777
- str r1, [r0, #0x0]
- str r1, [r0, #0x4]
- ldr r1, =0x0
- str r1, [r0, #0x40]
- str r1, [r0, #0x44]
- str r1, [r0, #0x48]
- str r1, [r0, #0x4C]
- str r1, [r0, #0x50]
+.endm /* init_aips */
Can't this be done in C code? Why the assembly ?
+.section ".text.init", "x"
+.globl lowlevel_init +lowlevel_init:
- init_aips
- mov pc, lr
[...]
+#define MXC_CCM_CSCMR2_CAN_CLK_SEL_OFFSET (2)
Drop parenthesis around stuff similar to this.
+#endif /*__ARCH_ARM_MACH_MX6_CCM_REGS_H__ */ diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h new file mode 100644 index 0000000..636458f --- /dev/null +++ b/arch/arm/include/asm/arch-mx6/clock.h @@ -0,0 +1,50 @@ +/*
- (C) Copyright 2009
- Stefano Babic, DENX Software Engineering, sbabic@denx.de.
- See file CREDITS for list of people who contributed to this
- project.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- */
+#ifndef __ASM_ARCH_CLOCK_H +#define __ASM_ARCH_CLOCK_H
+enum mxc_clock {
- MXC_ARM_CLK = 0,
- MXC_PER_CLK,
- MXC_AHB_CLK,
- MXC_IPG_CLK,
- MXC_IPG_PERCLK,
- MXC_UART_CLK,
- MXC_CSPI_CLK,
- MXC_AXI_CLK,
- MXC_EMI_SLOW_CLK,
- MXC_DDR_CLK,
- MXC_ESDHC_CLK,
- MXC_ESDHC2_CLK,
- MXC_ESDHC3_CLK,
- MXC_ESDHC4_CLK,
- MXC_SATA_CLK,
- MXC_NFC_CLK,
+};
+u32 imx_get_uartclk(void); +u32 imx_get_fecclk(void); +unsigned int mxc_get_clock(enum mxc_clock clk);
+#endif /* __ASM_ARCH_CLOCK_H */ diff --git a/arch/arm/include/asm/arch-mx6/gpio.h b/arch/arm/include/asm/arch-mx6/gpio.h new file mode 100644 index 0000000..1dc34e9 --- /dev/null +++ b/arch/arm/include/asm/arch-mx6/gpio.h @@ -0,0 +1,35 @@ +/*
- Copyright (C) 2011
- Stefano Babic, DENX Software Engineering, sbabic@denx.de
- See file CREDITS for list of people who contributed to this
- project.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of
- the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- MA 02111-1307 USA
- */
+#ifndef __ASM_ARCH_MX5_GPIO_H +#define __ASM_ARCH_MX5_GPIO_H
+/* GPIO registers */ +struct gpio_regs {
- u32 gpio_dr;
- u32 gpio_dir;
- u32 gpio_psr;
+};
You'll have GPIO driver, so why expose this structure ?
+#endif
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