[U-Boot] [PATCH 1/1] at91sam9/at91cap: improve clock framework
Jean-Christophe PLAGNIOL-VILLARD
plagnioj at jcrosoft.com
Tue Mar 31 10:07:04 CEST 2009
calculate dynamically the clock rate and pllb setting for usb
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
board/atmel/at91cap9adk/at91cap9adk.c | 3 +-
board/atmel/at91sam9261ek/at91sam9261ek.c | 3 +-
board/atmel/at91sam9263ek/at91sam9263ek.c | 3 +-
board/atmel/at91sam9rlek/at91sam9rlek.c | 3 +-
cpu/arm926ejs/at91/Makefile | 2 +
cpu/arm926ejs/at91/clock.c | 196 +++++++++++++++++++++++++++++
cpu/arm926ejs/at91/cpu.c | 14 ++
drivers/spi/atmel_dataflash_spi.c | 7 +-
drivers/usb/atmel_usb.c | 3 +-
include/asm-arm/arch-at91/clk.h | 17 ++-
include/asm-arm/arch-at91/hardware.h | 3 +
include/asm-arm/u-boot-arm.h | 3 +
include/configs/afeb9260.h | 6 +-
include/configs/at91cap9adk.h | 7 +-
include/configs/at91sam9260ek.h | 9 +--
include/configs/at91sam9261ek.h | 6 +-
include/configs/at91sam9263ek.h | 7 +-
include/configs/at91sam9rlek.h | 6 +-
lib_arm/board.c | 3 +
19 files changed, 254 insertions(+), 47 deletions(-)
create mode 100644 cpu/arm926ejs/at91/clock.c
create mode 100644 cpu/arm926ejs/at91/cpu.c
diff --git a/board/atmel/at91cap9adk/at91cap9adk.c b/board/atmel/at91cap9adk/at91cap9adk.c
index e8025e7..f52edaa 100644
--- a/board/atmel/at91cap9adk/at91cap9adk.c
+++ b/board/atmel/at91cap9adk/at91cap9adk.c
@@ -29,6 +29,7 @@
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
@@ -283,7 +284,7 @@ void lcd_show_board_info(void)
lcd_printf ("at91support at atmel.com\n");
lcd_printf ("%s CPU at %s MHz\n",
AT91_CPU_NAME,
- strmhz(temp, AT91_CPU_CLOCK));
+ strmhz(temp, get_cpu_clk_rate()));
dram_size = 0;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
diff --git a/board/atmel/at91sam9261ek/at91sam9261ek.c b/board/atmel/at91sam9261ek/at91sam9261ek.c
index bae4092..a89cb8b 100644
--- a/board/atmel/at91sam9261ek/at91sam9261ek.c
+++ b/board/atmel/at91sam9261ek/at91sam9261ek.c
@@ -29,6 +29,7 @@
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <lcd.h>
@@ -185,7 +186,7 @@ void lcd_show_board_info(void)
lcd_printf ("at91support at atmel.com\n");
lcd_printf ("%s CPU at %s MHz\n",
AT91_CPU_NAME,
- strmhz(temp, AT91_CPU_CLOCK));
+ strmhz(temp, get_cpu_clk_rate()));
dram_size = 0;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
diff --git a/board/atmel/at91sam9263ek/at91sam9263ek.c b/board/atmel/at91sam9263ek/at91sam9263ek.c
index 1d52845..57d5c95 100644
--- a/board/atmel/at91sam9263ek/at91sam9263ek.c
+++ b/board/atmel/at91sam9263ek/at91sam9263ek.c
@@ -30,6 +30,7 @@
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/hardware.h>
@@ -206,7 +207,7 @@ void lcd_show_board_info(void)
lcd_printf ("at91support at atmel.com\n");
lcd_printf ("%s CPU at %s MHz\n",
AT91_CPU_NAME,
- strmhz(temp, AT91_CPU_CLOCK));
+ strmhz(temp, get_cpu_clk_rate()));
dram_size = 0;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
diff --git a/board/atmel/at91sam9rlek/at91sam9rlek.c b/board/atmel/at91sam9rlek/at91sam9rlek.c
index 908b9c8..7013ba2 100644
--- a/board/atmel/at91sam9rlek/at91sam9rlek.c
+++ b/board/atmel/at91sam9rlek/at91sam9rlek.c
@@ -29,6 +29,7 @@
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
+#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <lcd.h>
@@ -157,7 +158,7 @@ void lcd_show_board_info(void)
lcd_printf ("at91support at atmel.com\n");
lcd_printf ("%s CPU at %s MHz\n",
AT91_CPU_NAME,
- strmhz(temp, AT91_CPU_CLOCK));
+ strmhz(temp, get_cpu_clk_rate()));
dram_size = 0;
for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
diff --git a/cpu/arm926ejs/at91/Makefile b/cpu/arm926ejs/at91/Makefile
index 038af82..685cee1 100644
--- a/cpu/arm926ejs/at91/Makefile
+++ b/cpu/arm926ejs/at91/Makefile
@@ -61,6 +61,8 @@ COBJS-y += at91sam9rl_serial.o
COBJS-$(CONFIG_HAS_DATAFLASH) += at91sam9rl_spi.o
endif
COBJS-$(CONFIG_AT91_LED) += led.o
+COBJS-y += clock.o
+COBJS-y += cpu.o
COBJS-y += timer.o
SOBJS = lowlevel_init.o
diff --git a/cpu/arm926ejs/at91/clock.c b/cpu/arm926ejs/at91/clock.c
new file mode 100644
index 0000000..44b3634
--- /dev/null
+++ b/cpu/arm926ejs/at91/clock.c
@@ -0,0 +1,196 @@
+/*
+ * [origin: Linux kernel linux/arch/arm/mach-at91/clock.c]
+ *
+ * Copyright (C) 2005 David Brownell
+ * Copyright (C) 2005 Ivan Kokshaysky
+ * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
+ *
+ * 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.
+ */
+
+#include <config.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/io.h>
+
+static unsigned long cpu_clk_rate_hz;
+static unsigned long main_clk_rate_hz;
+static unsigned long mck_rate_hz;
+static unsigned long plla_rate_hz;
+static unsigned long pllb_rate_hz;
+static u32 at91_pllb_usb_init;
+
+unsigned long get_cpu_clk_rate(void)
+{
+ return cpu_clk_rate_hz;
+}
+
+unsigned long get_main_clk_rate(void)
+{
+ return main_clk_rate_hz;
+}
+
+unsigned long get_mck_clk_rate(void)
+{
+ return mck_rate_hz;
+}
+
+unsigned long get_plla_clk_rate(void)
+{
+ return plla_rate_hz;
+}
+
+unsigned long get_pllb_clk_rate(void)
+{
+ return pllb_rate_hz;
+}
+
+u32 get_pllb_init(void)
+{
+ return at91_pllb_usb_init;
+}
+
+static unsigned long at91_css_to_rate(unsigned long css)
+{
+ switch (css) {
+ case AT91_PMC_CSS_SLOW:
+ return AT91_SLOW_CLOCK;
+ case AT91_PMC_CSS_MAIN:
+ return main_clk_rate_hz;
+ case AT91_PMC_CSS_PLLA:
+ return plla_rate_hz;
+ case AT91_PMC_CSS_PLLB:
+ return pllb_rate_hz;
+ }
+
+ return 0;
+}
+
+static unsigned at91_pll_calc(unsigned main_freq, unsigned out_freq)
+{
+ unsigned i, div = 0, mul = 0, diff = 1 << 30;
+ unsigned ret = (out_freq > 155000000) ? 0xbe00 : 0x3e00;
+
+ /* PLL output max 240 MHz (or 180 MHz per errata) */
+ if (out_freq > 240000000)
+ goto fail;
+
+ for (i = 1; i < 256; i++) {
+ int diff1;
+ unsigned input, mul1;
+
+ /*
+ * PLL input between 1MHz and 32MHz per spec, but lower
+ * frequences seem necessary in some cases so allow 100K.
+ * Warning: some newer products need 2MHz min.
+ */
+ input = main_freq / i;
+#if defined(CONFIG_AT91SAM9G20)
+ if (input < 2000000)
+ continue;
+#endif
+ if (input < 100000)
+ continue;
+ if (input > 32000000)
+ continue;
+
+ mul1 = out_freq / input;
+#if defined(CONFIG_AT91SAM9G20)
+ if (mul > 63)
+ continue;
+#endif
+ if (mul1 > 2048)
+ continue;
+ if (mul1 < 2)
+ goto fail;
+
+ diff1 = out_freq - input * mul1;
+ if (diff1 < 0)
+ diff1 = -diff1;
+ if (diff > diff1) {
+ diff = diff1;
+ div = i;
+ mul = mul1;
+ if (diff == 0)
+ break;
+ }
+ }
+ if (i == 256 && diff > (out_freq >> 5))
+ goto fail;
+ return ret | ((mul - 1) << 16) | div;
+fail:
+ return 0;
+}
+
+static u32 at91_pll_rate(u32 freq, u32 reg)
+{
+ unsigned mul, div;
+
+ div = reg & 0xff;
+ mul = (reg >> 16) & 0x7ff;
+ if (div && mul) {
+ freq /= div;
+ freq *= mul + 1;
+ } else
+ freq = 0;
+
+ return freq;
+}
+
+int at91_clock_init(unsigned long main_clock)
+{
+ unsigned tmp, freq, mckr;
+
+ /*
+ * When the bootloader initialized the main oscillator correctly,
+ * there's no problem using the cycle counter. But if it didn't,
+ * or when using oscillator bypass mode, we must be told the speed
+ * of the main clock.
+ */
+ if (!main_clock) {
+ do {
+ tmp = at91_sys_read(AT91_CKGR_MCFR);
+ } while (!(tmp & AT91_PMC_MAINRDY));
+ main_clock = (tmp & AT91_PMC_MAINF) * (AT91_SLOW_CLOCK / 16);
+ }
+ main_clk_rate_hz = main_clock;
+
+ /* report if PLLA is more than mildly overclocked */
+ plla_rate_hz = at91_pll_rate(main_clock, at91_sys_read(AT91_CKGR_PLLAR));
+
+ /*
+ * USB clock init: choose 48 MHz PLLB value,
+ * disable 48MHz clock during usb peripheral suspend.
+ *
+ * REVISIT: assumes MCK doesn't derive from PLLB!
+ */
+ at91_pllb_usb_init = at91_pll_calc(main_clock, 48000000 * 2) |
+ AT91_PMC_USB96M;
+ pllb_rate_hz = at91_pll_rate(main_clock, at91_pllb_usb_init);
+
+ /*
+ * MCK and CPU derive from one of those primary clocks.
+ * For now, assume this parentage won't change.
+ */
+ mckr = at91_sys_read(AT91_PMC_MCKR);
+ freq = mck_rate_hz = at91_css_to_rate(mckr & AT91_PMC_CSS);
+ freq /= (1 << ((mckr & AT91_PMC_PRES) >> 2)); /* prescale */
+#if defined(CONFIG_AT91RM9200)
+ mck_rate_hz = freq / (1 + ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */
+#elif defined(CONFIG_AT91SAM9G20)
+ mck_rate_hz = (mckr & AT91_PMC_MDIV) ?
+ freq / ((mckr & AT91_PMC_MDIV) >> 7) : freq; /* mdiv ; (x >> 7) = ((x >> 8) * 2) */
+ if (mckr & AT91_PMC_PDIV)
+ freq /= 2; /* processor clock division */
+#else
+ mck_rate_hz = freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */
+#endif
+ cpu_clk_rate_hz = freq;
+
+ return 0;
+}
+
diff --git a/cpu/arm926ejs/at91/cpu.c b/cpu/arm926ejs/at91/cpu.c
new file mode 100644
index 0000000..a9705cf
--- /dev/null
+++ b/cpu/arm926ejs/at91/cpu.c
@@ -0,0 +1,14 @@
+#include <config.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/io.h>
+
+int arch_cpu_init(void)
+{
+#ifdef AT91_MAIN_CLOCK
+ return at91_clock_init(AT91_MAIN_CLOCK);
+#else
+ return at91_clock_init(0);
+#endif
+}
diff --git a/drivers/spi/atmel_dataflash_spi.c b/drivers/spi/atmel_dataflash_spi.c
index 3eb252c..614965c 100644
--- a/drivers/spi/atmel_dataflash_spi.c
+++ b/drivers/spi/atmel_dataflash_spi.c
@@ -21,6 +21,7 @@
#include <common.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/clk.h>
#include <asm/arch/gpio.h>
#include <asm/arch/io.h>
#include <asm/arch/at91_pio.h>
@@ -45,7 +46,7 @@ void AT91F_SpiInit(void)
writel(AT91_SPI_NCPHA |
(AT91_SPI_DLYBS & DATAFLASH_TCSS) |
(AT91_SPI_DLYBCT & DATAFLASH_TCHS) |
- ((AT91_MASTER_CLOCK / AT91_SPI_CLK) << 8),
+ ((get_mck_clk_rate() / AT91_SPI_CLK) << 8),
AT91_BASE_SPI + AT91_SPI_CSR(0));
#ifdef CONFIG_SYS_DATAFLASH_LOGIC_ADDR_CS1
@@ -53,7 +54,7 @@ void AT91F_SpiInit(void)
writel(AT91_SPI_NCPHA |
(AT91_SPI_DLYBS & DATAFLASH_TCSS) |
(AT91_SPI_DLYBCT & DATAFLASH_TCHS) |
- ((AT91_MASTER_CLOCK / AT91_SPI_CLK) << 8),
+ ((get_mck_clk_rate() / AT91_SPI_CLK) << 8),
AT91_BASE_SPI + AT91_SPI_CSR(1));
#endif
@@ -62,7 +63,7 @@ void AT91F_SpiInit(void)
writel(AT91_SPI_NCPHA |
(AT91_SPI_DLYBS & DATAFLASH_TCSS) |
(AT91_SPI_DLYBCT & DATAFLASH_TCHS) |
- ((AT91_MASTER_CLOCK / AT91_SPI_CLK) << 8),
+ ((get_mck_clk_rate() / AT91_SPI_CLK) << 8),
AT91_BASE_SPI + AT91_SPI_CSR(3));
#endif
diff --git a/drivers/usb/atmel_usb.c b/drivers/usb/atmel_usb.c
index 7c44ad0..c35319c 100644
--- a/drivers/usb/atmel_usb.c
+++ b/drivers/usb/atmel_usb.c
@@ -28,6 +28,7 @@
#include <asm/arch/hardware.h>
#include <asm/arch/io.h>
#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
int usb_cpu_init(void)
{
@@ -35,7 +36,7 @@ int usb_cpu_init(void)
#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
defined(CONFIG_AT91SAM9263) || defined(CONFIG_AT91SAM9G20)
/* Enable PLLB */
- at91_sys_write(AT91_CKGR_PLLBR, CONFIG_SYS_AT91_PLLB);
+ at91_sys_write(AT91_CKGR_PLLBR, get_pllb_init());
while ((at91_sys_read(AT91_PMC_SR) & AT91_PMC_LOCKB) != AT91_PMC_LOCKB)
;
#endif
diff --git a/include/asm-arm/arch-at91/clk.h b/include/asm-arm/arch-at91/clk.h
index 85ab68e..6aaf82e 100644
--- a/include/asm-arm/arch-at91/clk.h
+++ b/include/asm-arm/arch-at91/clk.h
@@ -2,6 +2,7 @@
* (C) Copyright 2007
* Stelian Pop <stelian.pop at leadtechdesign.com>
* Lead Tech Design <www.leadtechdesign.com>
+ * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -26,24 +27,32 @@
#include <asm/arch/hardware.h>
+unsigned long get_cpu_clk_rate(void);
+unsigned long get_main_clk_rate(void);
+unsigned long get_mck_clk_rate(void);
+unsigned long get_plla_clk_rate(void);
+unsigned long get_pllb_clk_rate(void);
+unsigned int get_pllb_init(void);
+
static inline unsigned long get_macb_pclk_rate(unsigned int dev_id)
{
- return AT91_MASTER_CLOCK;
+ return get_mck_clk_rate();
}
static inline unsigned long get_usart_clk_rate(unsigned int dev_id)
{
- return AT91_MASTER_CLOCK;
+ return get_mck_clk_rate();
}
static inline unsigned long get_lcdc_clk_rate(unsigned int dev_id)
{
- return AT91_MASTER_CLOCK;
+ return get_mck_clk_rate();
}
static inline unsigned long get_twi_clk_rate(unsigned int dev_id)
{
- return AT91_MASTER_CLOCK;
+ return get_mck_clk_rate();
}
+int at91_clock_init(unsigned long main_clock);
#endif /* __ASM_ARM_ARCH_CLK_H__ */
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h
index fff82e4..756a242 100644
--- a/include/asm-arm/arch-at91/hardware.h
+++ b/include/asm-arm/arch-at91/hardware.h
@@ -70,4 +70,7 @@
#define AT91_SDRAM_BASE AT91_CHIPSELECT_1
#endif
+/* Clocks */
+#define AT91_SLOW_CLOCK 32768 /* slow clock */
+
#endif
diff --git a/include/asm-arm/u-boot-arm.h b/include/asm-arm/u-boot-arm.h
index 4ee5a32..e7d58fe 100644
--- a/include/asm-arm/u-boot-arm.h
+++ b/include/asm-arm/u-boot-arm.h
@@ -40,6 +40,9 @@ extern ulong FIQ_STACK_START; /* top of FIQ stack */
int cpu_init(void);
int cleanup_before_linux(void);
+/* cpu/.../arch/cpu.c */
+int arch_cpu_init(void);
+
/* board/.../... */
int board_init(void);
int dram_init (void);
diff --git a/include/configs/afeb9260.h b/include/configs/afeb9260.h
index bcd8d35..13cb8b9 100644
--- a/include/configs/afeb9260.h
+++ b/include/configs/afeb9260.h
@@ -27,15 +27,11 @@
#define __CONFIG_H
/* ARM asynchronous clock */
-#define AT91_MAIN_CLOCK 18429952 /* from 18.432 MHz crystal */
-#define AT91_MASTER_CLOCK 89999598 /* peripheral = main / 2 */
-#define CONFIG_SYS_AT91_PLLB 0x107c3e18 /* PLLB settings for USB */
#define CONFIG_SYS_HZ 1000000 /* 1us resolution */
-#define AT91_SLOW_CLOCK 32768 /* slow clock */
-
#define CONFIG_AT91SAM9260 1 /* It's an Atmel AT91SAM9260 SoC*/
#define CONFIG_AFEB9260 1 /* on an AFEB9260 Board */
+#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
diff --git a/include/configs/at91cap9adk.h b/include/configs/at91cap9adk.h
index af81f1d..8958c9c 100644
--- a/include/configs/at91cap9adk.h
+++ b/include/configs/at91cap9adk.h
@@ -29,17 +29,12 @@
/* ARM asynchronous clock */
#define AT91_CPU_NAME "AT91CAP9"
-#define AT91_MAIN_CLOCK 12000000 /* 12 MHz crystal */
-#define AT91_MASTER_CLOCK 100000000 /* peripheral */
-#define AT91_CPU_CLOCK 200000000 /* cpu */
-#define CONFIG_SYS_AT91_PLLB 0x10073e01 /* PLLB settings for USB */
#define CONFIG_SYS_HZ 1000000 /* 1us resolution */
-#define AT91_SLOW_CLOCK 32768 /* slow clock */
-
#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
#define CONFIG_AT91CAP9 1 /* It's an Atmel AT91CAP9 SoC */
#define CONFIG_AT91CAP9ADK 1 /* on an AT91CAP9ADK Board */
+#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
diff --git a/include/configs/at91sam9260ek.h b/include/configs/at91sam9260ek.h
index ac58f27..b06c819 100644
--- a/include/configs/at91sam9260ek.h
+++ b/include/configs/at91sam9260ek.h
@@ -28,26 +28,19 @@
#define __CONFIG_H
/* ARM asynchronous clock */
-#define AT91_MAIN_CLOCK 18432000 /* 18.432 MHz crystal */
-#define CONFIG_SYS_AT91_PLLB 0x107c3e18 /* PLLB settings for USB */
#define CONFIG_SYS_HZ 1000000 /* 1us resolution */
-#define AT91_SLOW_CLOCK 32768 /* slow clock */
-
#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
#ifdef CONFIG_AT91SAM9G20EK
#define AT91_CPU_NAME "AT91SAM9G20"
-#define AT91_MASTER_CLOCK 132000000 /* peripheral */
-#define AT91_CPU_CLOCK 396000000 /* cpu */
#define CONFIG_AT91SAM9G20 1 /* It's an Atmel AT91SAM9G20 SoC*/
#else
#define AT91_CPU_NAME "AT91SAM9260"
-#define AT91_MASTER_CLOCK 100000000 /* peripheral */
-#define AT91_CPU_CLOCK 200000000 /* cpu */
#define CONFIG_AT91SAM9260 1 /* It's an Atmel AT91SAM9260 SoC*/
#endif
+#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
diff --git a/include/configs/at91sam9261ek.h b/include/configs/at91sam9261ek.h
index 57bb9fa..7dfe126 100644
--- a/include/configs/at91sam9261ek.h
+++ b/include/configs/at91sam9261ek.h
@@ -29,16 +29,12 @@
/* ARM asynchronous clock */
#define AT91_CPU_NAME "AT91SAM9261"
-#define AT91_MAIN_CLOCK 18432000 /* 18.432 MHz crystal */
-#define AT91_MASTER_CLOCK 100000000 /* peripheral */
-#define AT91_CPU_CLOCK 200000000 /* cpu */
#define CONFIG_SYS_HZ 1000000 /* 1us resolution */
-#define AT91_SLOW_CLOCK 32768 /* slow clock */
-
#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
#define CONFIG_AT91SAM9261 1 /* It's an Atmel AT91SAM9261 SoC*/
#define CONFIG_AT91SAM9261EK 1 /* on an AT91SAM9261EK Board */
+#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
diff --git a/include/configs/at91sam9263ek.h b/include/configs/at91sam9263ek.h
index fc87241..e29fc57 100644
--- a/include/configs/at91sam9263ek.h
+++ b/include/configs/at91sam9263ek.h
@@ -29,17 +29,12 @@
/* ARM asynchronous clock */
#define AT91_CPU_NAME "AT91SAM9263"
-#define AT91_MAIN_CLOCK 16367660 /* 16.367 MHz crystal */
-#define AT91_MASTER_CLOCK 100000000 /* peripheral */
-#define AT91_CPU_CLOCK 200000000 /* cpu */
-#define CONFIG_SYS_AT91_PLLB 0x133a3e8d /* PLLB settings for USB */
#define CONFIG_SYS_HZ 1000000 /* 1us resolution */
-#define AT91_SLOW_CLOCK 32768 /* slow clock */
-
#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
#define CONFIG_AT91SAM9263 1 /* It's an Atmel AT91SAM9263 SoC*/
#define CONFIG_AT91SAM9263EK 1 /* on an AT91SAM9263EK Board */
+#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
diff --git a/include/configs/at91sam9rlek.h b/include/configs/at91sam9rlek.h
index cef98e4..a670e35 100644
--- a/include/configs/at91sam9rlek.h
+++ b/include/configs/at91sam9rlek.h
@@ -29,16 +29,12 @@
/* ARM asynchronous clock */
#define AT91_CPU_NAME "AT91SAM9RL"
-#define AT91_MAIN_CLOCK 12000000 /* 12 MHz crystal */
-#define AT91_MASTER_CLOCK 100000000 /* peripheral */
-#define AT91_CPU_CLOCK 200000000 /* cpu */
#define CONFIG_SYS_HZ 1000000 /* 1us resolution */
-#define AT91_SLOW_CLOCK 32768 /* slow clock */
-
#define CONFIG_ARM926EJS 1 /* This is an ARM926EJS Core */
#define CONFIG_AT91SAM9RL 1 /* It's an Atmel AT91SAM9RL SoC*/
#define CONFIG_AT91SAM9RLEK 1 /* on an AT91SAM9RLEK Board */
+#define CONFIG_ARCH_CPU_INIT
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
diff --git a/lib_arm/board.c b/lib_arm/board.c
index 3dfaec0..6847ea8 100644
--- a/lib_arm/board.c
+++ b/lib_arm/board.c
@@ -262,6 +262,9 @@ int print_cpuinfo (void); /* test-only */
init_fnc_t *init_sequence[] = {
cpu_init, /* basic cpu dependent setup */
+#if defined(CONFIG_ARCH_CPU_INIT)
+ arch_cpu_init, /* basic arch cpu dependent setup */
+#endif
board_init, /* basic board dependent setup */
interrupt_init, /* set up exceptions */
env_init, /* initialize environment */
--
1.6.1.3
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