aboutsummaryrefslogtreecommitdiffstats
path: root/arch/blackfin/mach-bf548
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/mach-bf548')
-rw-r--r--arch/blackfin/mach-bf548/Kconfig282
-rw-r--r--arch/blackfin/mach-bf548/Makefile9
-rw-r--r--arch/blackfin/mach-bf548/boards/Makefile5
-rw-r--r--arch/blackfin/mach-bf548/boards/ezkit.c114
-rw-r--r--arch/blackfin/mach-bf548/boards/led.S172
-rw-r--r--arch/blackfin/mach-bf548/cpu.c159
-rw-r--r--arch/blackfin/mach-bf548/dma.c156
-rw-r--r--arch/blackfin/mach-bf548/gpio.c175
-rw-r--r--arch/blackfin/mach-bf548/head.S507
-rw-r--r--arch/blackfin/mach-bf548/ints-priority.c137
10 files changed, 1716 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig
new file mode 100644
index 000000000000..b28625e921be
--- /dev/null
+++ b/arch/blackfin/mach-bf548/Kconfig
@@ -0,0 +1,282 @@
+if (BF54x)
+
+menu "BF548 Specific Configuration"
+
+comment "Interrupt Priority Assignment"
+menu "Priority"
+
+config IRQ_PLL_WAKEUP
+ int "IRQ_PLL_WAKEUP"
+ default 7
+config IRQ_DMAC0_ERR
+ int "IRQ_DMAC0_ERR"
+ default 7
+config IRQ_EPPI0_ERR
+ int "IRQ_EPPI0_ERR"
+ default 7
+config IRQ_SPORT0_ERR
+ int "IRQ_SPORT0_ERR"
+ default 7
+config IRQ_SPORT1_ERR
+ int "IRQ_SPORT1_ERR"
+ default 7
+config IRQ_SPI0_ERR
+ int "IRQ_SPI0_ERR"
+ default 7
+config IRQ_UART0_ERR
+ int "IRQ_UART0_ERR"
+ default 7
+config IRQ_RTC
+ int "IRQ_RTC"
+ default 8
+config IRQ_EPPI0
+ int "IRQ_EPPI0"
+ default 8
+config IRQ_SPORT0_RX
+ int "IRQ_SPORT0_RX"
+ default 9
+config IRQ_SPORT0_TX
+ int "IRQ_SPORT0_TX"
+ default 9
+config IRQ_SPORT1_RX
+ int "IRQ_SPORT1_RX"
+ default 9
+config IRQ_SPORT1_TX
+ int "IRQ_SPORT1_TX"
+ default 9
+config IRQ_SPI0
+ int "IRQ_SPI0"
+ default 10
+config IRQ_UART0_RX
+ int "IRQ_UART0_RX"
+ default 10
+config IRQ_UART0_TX
+ int "IRQ_UART0_TX"
+ default 10
+config IRQ_TIMER8
+ int "IRQ_TIMER8"
+ default 11
+config IRQ_TIMER9
+ int "IRQ_TIMER9"
+ default 11
+config IRQ_TIMER10
+ int "IRQ_TIMER10"
+ default 11
+config IRQ_PINT0
+ int "IRQ_PINT0"
+ default 12
+config IRQ_PINT1
+ int "IRQ_PINT0"
+ default 12
+config IRQ_MDMAS0
+ int "IRQ_MDMAS0"
+ default 13
+config IRQ_MDMAS1
+ int "IRQ_DMDMAS1"
+ default 13
+config IRQ_WATCHDOG
+ int "IRQ_WATCHDOG"
+ default 13
+config IRQ_DMAC1_ERR
+ int "IRQ_DMAC1_ERR"
+ default 7
+config IRQ_SPORT2_ERR
+ int "IRQ_SPORT2_ERR"
+ default 7
+config IRQ_SPORT3_ERR
+ int "IRQ_SPORT3_ERR"
+ default 7
+config IRQ_MXVR_DATA
+ int "IRQ MXVR Data"
+ default 7
+config IRQ_SPI1_ERR
+ int "IRQ_SPI1_ERR"
+ default 7
+config IRQ_SPI2_ERR
+ int "IRQ_SPI2_ERR"
+ default 7
+config IRQ_UART1_ERR
+ int "IRQ_UART1_ERR"
+ default 7
+config IRQ_UART2_ERR
+ int "IRQ_UART2_ERR"
+ default 7
+config IRQ_CAN0_ERR
+ int "IRQ_CAN0_ERR"
+ default 7
+config IRQ_SPORT2_RX
+ int "IRQ_SPORT2_RX"
+ default 9
+config IRQ_SPORT2_TX
+ int "IRQ_SPORT2_TX"
+ default 9
+config IRQ_SPORT3_RX
+ int "IRQ_SPORT3_RX"
+ default 9
+config IRQ_SPORT3_TX
+ int "IRQ_SPORT3_TX"
+ default 9
+config IRQ_EPPI1
+ int "IRQ_EPPI1"
+ default 9
+config IRQ_EPPI2
+ int "IRQ_EPPI2"
+ default 9
+config IRQ_SPI1
+ int "IRQ_SPI1"
+ default 10
+config IRQ_SPI2
+ int "IRQ_SPI2"
+ default 10
+config IRQ_UART1_RX
+ int "IRQ_UART1_RX"
+ default 10
+config IRQ_UART1_TX
+ int "IRQ_UART1_TX"
+ default 10
+config IRQ_ATAPI_RX
+ int "IRQ_ATAPI_RX"
+ default 10
+config IRQ_ATAPI_TX
+ int "IRQ_ATAPI_TX"
+ default 10
+config IRQ_TWI0
+ int "IRQ_TWI0"
+ default 11
+config IRQ_TWI1
+ int "IRQ_TWI1"
+ default 11
+config IRQ_CAN0_RX
+ int "IRQ_CAN_RX"
+ default 11
+config IRQ_CAN0_TX
+ int "IRQ_CAN_TX"
+ default 11
+config IRQ_MDMAS2
+ int "IRQ_MDMAS2"
+ default 13
+config IRQ_MDMAS3
+ int "IRQ_DMMAS3"
+ default 13
+config IRQ_MXVR_ERR
+ int "IRQ_MXVR_ERR"
+ default 11
+config IRQ_MXVR_MSG
+ int "IRQ_MXVR_MSG"
+ default 11
+config IRQ_MXVR_PKT
+ int "IRQ_MXVR_PKT"
+ default 11
+config IRQ_EPPI1_ERR
+ int "IRQ_EPPI1_ERR"
+ default 7
+config IRQ_EPPI2_ERR
+ int "IRQ_EPPI2_ERR"
+ default 7
+config IRQ_UART3_ERR
+ int "IRQ_UART3_ERR"
+ default 7
+config IRQ_HOST_ERR
+ int "IRQ_HOST_ERR"
+ default 7
+config IRQ_PIXC_ERR
+ int "IRQ_PIXC_ERR"
+ default 7
+config IRQ_NFC_ERR
+ int "IRQ_NFC_ERR"
+ default 7
+config IRQ_ATAPI_ERR
+ int "IRQ_ATAPI_ERR"
+ default 7
+config IRQ_CAN1_ERR
+ int "IRQ_CAN1_ERR"
+ default 7
+config IRQ_HS_DMA_ERR
+ int "IRQ Handshake DMA Status"
+ default 7
+config IRQ_PIXC_IN0
+ int "IRQ PIXC IN0"
+ default 8
+config IRQ_PIXC_IN1
+ int "IRQ PIXC IN1"
+ default 8
+config IRQ_PIXC_OUT
+ int "IRQ PIXC OUT"
+ default 8
+config IRQ_SDH
+ int "IRQ SDH"
+ default 8
+config IRQ_CNT
+ int "IRQ CNT"
+ default 8
+config IRQ_KEY
+ int "IRQ KEY"
+ default 8
+config IRQ_CAN1_RX
+ int "IRQ CAN1 RX"
+ default 11
+config IRQ_CAN1_TX
+ int "IRQ_CAN1_TX"
+ default 11
+config IRQ_SDH_MASK0
+ int "IRQ_SDH_MASK0"
+ default 11
+config IRQ_SDH_MASK1
+ int "IRQ_SDH_MASK1"
+ default 11
+config IRQ_USB_INT0
+ int "IRQ USB INT0"
+ default 11
+config IRQ_USB_INT1
+ int "IRQ USB INT1"
+ default 11
+config IRQ_USB_INT2
+ int "IRQ USB INT2"
+ default 11
+config IRQ_USB_DMA
+ int "IRQ USB DMA"
+ default 11
+config IRQ_OTPSEC
+ int "IRQ OPTSEC"
+ default 11
+config IRQ_TIMER0
+ int "IRQ_TIMER0"
+ default 11
+config IRQ_TIMER1
+ int "IRQ_TIMER1"
+ default 11
+config IRQ_TIMER2
+ int "IRQ_TIMER2"
+ default 11
+config IRQ_TIMER3
+ int "IRQ_TIMER3"
+ default 11
+config IRQ_TIMER4
+ int "IRQ_TIMER4"
+ default 11
+config IRQ_TIMER5
+ int "IRQ_TIMER5"
+ default 11
+config IRQ_TIMER6
+ int "IRQ_TIMER6"
+ default 11
+config IRQ_TIMER7
+ int "IRQ_TIMER7"
+ default 11
+config IRQ_PINT2
+ int "IRQ_PIN2"
+ default 11
+config IRQ_PINT3
+ int "IRQ_PIN3"
+ default 11
+
+ help
+ Enter the priority numbers between 7-13 ONLY. Others are Reserved.
+ This applies to all the above. It is not recommended to assign the
+ highest priority number 7 to UART or any other device.
+
+endmenu
+
+endmenu
+
+endif
diff --git a/arch/blackfin/mach-bf548/Makefile b/arch/blackfin/mach-bf548/Makefile
new file mode 100644
index 000000000000..060ad78ebf1d
--- /dev/null
+++ b/arch/blackfin/mach-bf548/Makefile
@@ -0,0 +1,9 @@
+#
+# arch/blackfin/mach-bf537/Makefile
+#
+
+extra-y := head.o
+
+obj-y := ints-priority.o dma.o gpio.o
+
+obj-$(CONFIG_CPU_FREQ) += cpu.o
diff --git a/arch/blackfin/mach-bf548/boards/Makefile b/arch/blackfin/mach-bf548/boards/Makefile
new file mode 100644
index 000000000000..486e07c99a51
--- /dev/null
+++ b/arch/blackfin/mach-bf548/boards/Makefile
@@ -0,0 +1,5 @@
+#
+# arch/blackfin/mach-bf548/boards/Makefile
+#
+
+obj-$(CONFIG_BFIN548_EZKIT) += ezkit.o led.o
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
new file mode 100644
index 000000000000..100379c4b926
--- /dev/null
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -0,0 +1,114 @@
+/*
+ * File: arch/blackfin/mach-bf548/boards/ezkit.c
+ * Based on: arch/blackfin/mach-bf537/boards/ezkit.c
+ * Author: Aidan Williams <aidan@nicta.com.au>
+ *
+ * Created:
+ * Description:
+ *
+ * Modified:
+ * Copyright 2005 National ICT Australia (NICTA)
+ * Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <asm/irq.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <asm/bfin5xx_spi.h>
+
+/*
+ * Name the Board for the /proc/cpuinfo
+ */
+char *bfin_board_name = "ADSP-BF548-EZKIT";
+
+/*
+ * Driver needs to know address, irq and flag pin.
+ */
+
+#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+static struct platform_device rtc_device = {
+ .name = "rtc-bfin",
+ .id = -1,
+};
+#endif
+
+#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+static struct resource bfin_uart_resources[] = {
+#ifdef CONFIG_SERIAL_BFIN_UART0
+ {
+ .start = 0xFFC00400,
+ .end = 0xFFC004FF,
+ .flags = IORESOURCE_MEM,
+ },
+#endif
+#ifdef CONFIG_SERIAL_BFIN_UART1
+ {
+ .start = 0xFFC02000,
+ .end = 0xFFC020FF,
+ .flags = IORESOURCE_MEM,
+ },
+#endif
+#ifdef CONFIG_SERIAL_BFIN_UART2
+ {
+ .start = 0xFFC02100,
+ .end = 0xFFC021FF,
+ .flags = IORESOURCE_MEM,
+ },
+#endif
+#ifdef CONFIG_SERIAL_BFIN_UART3
+ {
+ .start = 0xFFC03100,
+ .end = 0xFFC031FF,
+ },
+#endif
+};
+
+static struct platform_device bfin_uart_device = {
+ .name = "bfin-uart",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(bfin_uart_resources),
+ .resource = bfin_uart_resources,
+};
+#endif
+
+static struct platform_device *ezkit_devices[] __initdata = {
+#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
+ &rtc_device,
+#endif
+
+#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
+ &bfin_uart_device,
+#endif
+};
+
+static int __init stamp_init(void)
+{
+ printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__);
+ platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
+ return 0;
+}
+
+arch_initcall(stamp_init);
diff --git a/arch/blackfin/mach-bf548/boards/led.S b/arch/blackfin/mach-bf548/boards/led.S
new file mode 100644
index 000000000000..f47daf3770d0
--- /dev/null
+++ b/arch/blackfin/mach-bf548/boards/led.S
@@ -0,0 +1,172 @@
+/****************************************************
+ * LED1 ---- PG6 LED2 ---- PG7 *
+ * LED3 ---- PG8 LED4 ---- PG9 *
+ * LED5 ---- PG10 LED6 ---- PG11 *
+ ****************************************************/
+
+#include <linux/linkage.h>
+#include <asm/blackfin.h>
+
+/* All functions in this file save the registers they uses.
+ So there is no need to save any registers before calling them. */
+
+ .text;
+
+/* Initialize LEDs. */
+
+ENTRY(_led_init)
+ LINK 0;
+ [--SP] = P0;
+ [--SP] = R0;
+ [--SP] = R1;
+ [--SP] = R2;
+ R1 = (PG6|PG7|PG8|PG9|PG10|PG11)(Z);
+ R2 = ~R1;
+
+ P0.H = hi(PORTG_FER);
+ P0.L = lo(PORTG_FER);
+ R0 = W[P0](Z);
+ SSYNC;
+ R0 = R0 & R2;
+ W[P0] = R0.L;
+ SSYNC;
+
+ P0.H = hi(PORTG_DIR_SET);
+ P0.L = lo(PORTG_DIR_SET);
+ W[P0] = R1.L;
+ SSYNC;
+
+ P0.H = hi(PORTG_INEN);
+ P0.L = lo(PORTG_INEN);
+ R0 = W[P0](Z);
+ SSYNC;
+ R0 = R0 & R2;
+ W[P0] = R0.L;
+ SSYNC;
+
+ R2 = [SP++];
+ R1 = [SP++];
+ R0 = [SP++];
+ P0 = [SP++];
+ RTS;
+ .size _led_init, .-_led_init
+
+/* Set one LED on. Leave other LEDs unchanged.
+ It expects the LED number passed through R0. */
+
+ENTRY(_led_on)
+ LINK 0;
+ [--SP] = P0;
+ [--SP] = R1;
+ CALL _led_init;
+ R1 = 1;
+ R0 += 5;
+ R1 <<= R0;
+ P0.H = hi(PORTG_SET);
+ P0.L = lo(PORTG_SET);
+ W[P0] = R1.L;
+ SSYNC;
+ R1 = [SP++];
+ P0 = [SP++];
+ UNLINK;
+ RTS;
+ .size _led_on, .-_led_on
+
+/* Set one LED off. Leave other LEDs unchanged. */
+
+ENTRY(_led_off)
+ LINK 0;
+ [--SP] = P0;
+ [--SP] = R1;
+ CALL _led_init;
+ R1 = 1;
+ R0 += 5;
+ R1 <<= R0;
+ P0.H = hi(PORTG_CLEAR);
+ P0.L = lo(PORTG_CLEAR);
+ W[P0] = R1.L;
+ SSYNC;
+ R1 = [SP++];
+ P0 = [SP++];
+ UNLINK;
+ RTS;
+ .size _led_off, .-_led_off
+
+/* Toggle one LED. Leave other LEDs unchanged. */
+
+ENTRY(_led_toggle)
+ LINK 0;
+ [--SP] = P0;
+ [--SP] = R1;
+ CALL _led_init;
+ R1 = 1;
+ R0 += 5;
+ R1 <<= R0;
+ P0.H = hi(PORTG);
+ P0.L = lo(PORTG);
+ R0 = W[P0](Z);
+ SSYNC;
+ R0 = R0 ^ R1;
+ W[P0] = R0.L;
+ SSYNC;
+ R1 = [SP++];
+ P0 = [SP++];
+ UNLINK;
+ RTS;
+ .size _led_toggle, .-_led_toggle
+
+/* Display the number using LEDs in binary format. */
+
+ENTRY(_led_disp_num)
+ LINK 0;
+ [--SP] = P0;
+ [--SP] = R1;
+ [--SP] = R2;
+ CALL _led_init;
+ R1 = 0x3f(X);
+ R0 = R0 & R1;
+ R2 = 6(X);
+ R0 <<= R2;
+ R1 <<= R2;
+ P0.H = hi(PORTG);
+ P0.L = lo(PORTG);
+ R2 = W[P0](Z);
+ SSYNC;
+ R1 = ~R1;
+ R2 = R2 & R1;
+ R2 = R2 | R0;
+ W[P0] = R2.L;
+ SSYNC;
+ R2 = [SP++];
+ R1 = [SP++];
+ P0 = [SP++];
+ UNLINK;
+ RTS;
+ .size _led_disp_num, .-_led_disp_num
+
+/* Toggle the number using LEDs in binary format. */
+
+ENTRY(_led_toggle_num)
+ LINK 0;
+ [--SP] = P0;
+ [--SP] = R1;
+ [--SP] = R2;
+ CALL _led_init;
+ R1 = 0x3f(X);
+ R0 = R0 & R1;
+ R1 = 6(X);
+ R0 <<= R1;
+ P0.H = hi(PORTG);
+ P0.L = lo(PORTG);
+ R1 = W[P0](Z);
+ SSYNC;
+ R1 = R1 ^ R0;
+ W[P0] = R1.L;
+ SSYNC;
+ R2 = [SP++];
+ R1 = [SP++];
+ P0 = [SP++];
+ UNLINK;
+ RTS;
+ .size _led_toggle_num, .-_led_toggle_num
+
diff --git a/arch/blackfin/mach-bf548/cpu.c b/arch/blackfin/mach-bf548/cpu.c
new file mode 100644
index 000000000000..4298a3ccfbfc
--- /dev/null
+++ b/arch/blackfin/mach-bf548/cpu.c
@@ -0,0 +1,159 @@
+/*
+ * File: arch/blackfin/mach-bf548/cpu.c
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description: clock scaling for the bf54x
+ *
+ * Modified:
+ * Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/cpufreq.h>
+#include <asm/dpmc.h>
+#include <linux/fs.h>
+#include <asm/bfin-global.h>
+
+/* CONFIG_CLKIN_HZ=25000000 */
+#define VCO5 (CONFIG_CLKIN_HZ*45)
+#define VCO4 (CONFIG_CLKIN_HZ*36)
+#define VCO3 (CONFIG_CLKIN_HZ*27)
+#define VCO2 (CONFIG_CLKIN_HZ*18)
+#define VCO1 (CONFIG_CLKIN_HZ*9)
+#define VCO(x) VCO##x
+
+#define MFREQ(x) {VCO(x),VCO(x)/4},{VCO(x),VCO(x)/2},{VCO(x),VCO(x)}
+/* frequency */
+static struct cpufreq_frequency_table bf548_freq_table[] = {
+ MFREQ(1),
+ MFREQ(3),
+ {VCO4, VCO4 / 2}, {VCO4, VCO4},
+ MFREQ(5),
+ {0, CPUFREQ_TABLE_END},
+};
+
+/*
+ * dpmc_fops->ioctl()
+ * static int dpmc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+ */
+static int bf548_getfreq(unsigned int cpu)
+{
+ unsigned long cclk_mhz;
+
+ /* The driver only support single cpu */
+ if (cpu == 0)
+ dpmc_fops.ioctl(NULL, NULL, IOCTL_GET_CORECLOCK, &cclk_mhz);
+ else
+ cclk_mhz = -1;
+
+ return cclk_mhz;
+}
+
+static int bf548_target(struct cpufreq_policy *policy,
+ unsigned int target_freq, unsigned int relation)
+{
+ unsigned long cclk_mhz;
+ unsigned long vco_mhz;
+ unsigned long flags;
+ unsigned int index;
+ struct cpufreq_freqs freqs;
+
+ if (cpufreq_frequency_table_target(policy, bf548_freq_table, target_freq, relation, &index))
+ return -EINVAL;
+
+ cclk_mhz = bf548_freq_table[index].frequency;
+ vco_mhz = bf548_freq_table[index].index;
+
+ dpmc_fops.ioctl(NULL, NULL, IOCTL_CHANGE_FREQUENCY, &vco_mhz);
+ freqs.old = bf548_getfreq(0);
+ freqs.new = cclk_mhz;
+ freqs.cpu = 0;
+
+ pr_debug("cclk begin change to cclk %d,vco=%d,index=%d,target=%d,oldfreq=%d\n",
+ cclk_mhz, vco_mhz, index, target_freq, freqs.old);
+
+ cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+ local_irq_save(flags);
+ dpmc_fops.ioctl(NULL, NULL, IOCTL_SET_CCLK, &cclk_mhz);
+ local_irq_restore(flags);
+ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
+ vco_mhz = get_vco();
+ cclk_mhz = get_cclk();
+ return 0;
+}
+
+/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on
+ * this platform, anyway.
+ */
+static int bf548_verify_speed(struct cpufreq_policy *policy)
+{
+ return cpufreq_frequency_table_verify(policy, &bf548_freq_table);
+}
+
+static int __init __bf548_cpu_init(struct cpufreq_policy *policy)
+{
+ if (policy->cpu != 0)
+ return -EINVAL;
+
+ policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
+
+ policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+ /*Now ,only support one cpu */
+ policy->cur = bf548_getfreq(0);
+ cpufreq_frequency_table_get_attr(bf548_freq_table, policy->cpu);
+ return cpufreq_frequency_table_cpuinfo(policy, bf548_freq_table);
+}
+
+static struct freq_attr *bf548_freq_attr[] = {
+ &cpufreq_freq_attr_scaling_available_freqs,
+ NULL,
+};
+
+static struct cpufreq_driver bf548_driver = {
+ .verify = bf548_verify_speed,
+ .target = bf548_target,
+ .get = bf548_getfreq,
+ .init = __bf548_cpu_init,
+ .name = "bf548",
+ .owner = THIS_MODULE,
+ .attr = bf548_freq_attr,
+};
+
+static int __init bf548_cpu_init(void)
+{
+ return cpufreq_register_driver(&bf548_driver);
+}
+
+static void __exit bf548_cpu_exit(void)
+{
+ cpufreq_unregister_driver(&bf548_driver);
+}
+
+MODULE_AUTHOR("Mickael Kang");
+MODULE_DESCRIPTION("cpufreq driver for BF548 CPU");
+MODULE_LICENSE("GPL");
+
+module_init(bf548_cpu_init);
+module_exit(bf548_cpu_exit);
diff --git a/arch/blackfin/mach-bf548/dma.c b/arch/blackfin/mach-bf548/dma.c
new file mode 100644
index 000000000000..a8184113be48
--- /dev/null
+++ b/arch/blackfin/mach-bf548/dma.c
@@ -0,0 +1,156 @@
+/*
+ * File: arch/blackfin/mach-bf561/dma.c
+ * Based on:
+ * Author:
+ *
+ * Created:
+ * Description: This file contains the simple DMA Implementation for Blackfin
+ *
+ * Modified:
+ * Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <asm/blackfin.h>
+#include <asm/dma.h>
+
+ struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = {
+ (struct dma_register *) DMA0_NEXT_DESC_PTR,
+ (struct dma_register *) DMA1_NEXT_DESC_PTR,
+ (struct dma_register *) DMA2_NEXT_DESC_PTR,
+ (struct dma_register *) DMA3_NEXT_DESC_PTR,
+ (struct dma_register *) DMA4_NEXT_DESC_PTR,
+ (struct dma_register *) DMA5_NEXT_DESC_PTR,
+ (struct dma_register *) DMA6_NEXT_DESC_PTR,
+ (struct dma_register *) DMA7_NEXT_DESC_PTR,
+ (struct dma_register *) DMA8_NEXT_DESC_PTR,
+ (struct dma_register *) DMA9_NEXT_DESC_PTR,
+ (struct dma_register *) DMA10_NEXT_DESC_PTR,
+ (struct dma_register *) DMA11_NEXT_DESC_PTR,
+ (struct dma_register *) DMA12_NEXT_DESC_PTR,
+ (struct dma_register *) DMA13_NEXT_DESC_PTR,
+ (struct dma_register *) DMA14_NEXT_DESC_PTR,
+ (struct dma_register *) DMA15_NEXT_DESC_PTR,
+ (struct dma_register *) DMA16_NEXT_DESC_PTR,
+ (struct dma_register *) DMA17_NEXT_DESC_PTR,
+ (struct dma_register *) DMA18_NEXT_DESC_PTR,
+ (struct dma_register *) DMA19_NEXT_DESC_PTR,
+ (struct dma_register *) DMA20_NEXT_DESC_PTR,
+ (struct dma_register *) DMA21_NEXT_DESC_PTR,
+ (struct dma_register *) DMA22_NEXT_DESC_PTR,
+ (struct dma_register *) DMA23_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D0_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S0_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D1_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S1_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D2_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S2_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_D3_NEXT_DESC_PTR,
+ (struct dma_register *) MDMA_S3_NEXT_DESC_PTR,
+};
+
+int channel2irq(unsigned int channel)
+{
+ int ret_irq = -1;
+
+ switch (channel) {
+ case CH_SPORT0_RX:
+ ret_irq = IRQ_SPORT0_RX;
+ break;
+ case CH_SPORT0_TX:
+ ret_irq = IRQ_SPORT0_TX;
+ break;
+ case CH_SPORT1_RX:
+ ret_irq = IRQ_SPORT1_RX;
+ break;
+ case CH_SPORT1_TX:
+ ret_irq = IRQ_SPORT1_TX;
+ case CH_SPI0:
+ ret_irq = IRQ_SPI0;
+ break;
+ case CH_SPI1:
+ ret_irq = IRQ_SPI1;
+ break;
+ case CH_UART0_RX:
+ ret_irq = IRQ_UART_RX;
+ break;
+ case CH_UART0_TX:
+ ret_irq = IRQ_UART_TX;
+ break;
+ case CH_UART1_RX:
+ ret_irq = IRQ_UART_RX;
+ break;
+ case CH_UART1_TX:
+ ret_irq = IRQ_UART_TX;
+ break;
+ case CH_EPPI0:
+ ret_irq = IRQ_EPPI0;
+ break;
+ case CH_EPPI1:
+ ret_irq = IRQ_EPPI1;
+ break;
+ case CH_EPPI2:
+ ret_irq = IRQ_EPPI2;
+ break;
+ case CH_PIXC_IMAGE:
+ ret_irq = IRQ_PIXC_IN0;
+ break;
+ case CH_PIXC_OVERLAY:
+ ret_irq = IRQ_PIXC_IN1;
+ break;
+ case CH_PIXC_OUTPUT:
+ ret_irq = IRQ_PIXC_OUT;
+ break;
+ case CH_SPORT2_RX:
+ ret_irq = IRQ_SPORT2_RX;
+ break;
+ case CH_SPORT2_TX:
+ ret_irq = IRQ_SPORT2_TX;
+ break;
+ case CH_SPORT3_RX:
+ ret_irq = IRQ_SPORT3_RX;
+ break;
+ case CH_SPORT3_TX:
+ ret_irq = IRQ_SPORT3_TX;
+ break;
+ case CH_SDH:
+ ret_irq = IRQ_SDH;
+ break;
+ case CH_SPI2:
+ ret_irq = IRQ_SPI2;
+ break;
+ case CH_MEM_STREAM0_SRC:
+ case CH_MEM_STREAM0_DEST:
+ ret_irq = IRQ_MDMAS0;
+ break;
+ case CH_MEM_STREAM1_SRC:
+ case CH_MEM_STREAM1_DEST:
+ ret_irq = IRQ_MDMAS1;
+ break;
+ case CH_MEM_STREAM2_SRC:
+ case CH_MEM_STREAM2_DEST:
+ ret_irq = IRQ_MDMAS2;
+ break;
+ case CH_MEM_STREAM3_SRC:
+ case CH_MEM_STREAM3_DEST:
+ ret_irq = IRQ_MDMAS3;
+ break;
+ }
+ return ret_irq;
+}
diff --git a/arch/blackfin/mach-bf548/gpio.c b/arch/blackfin/mach-bf548/gpio.c
new file mode 100644
index 000000000000..854896d6ceda
--- /dev/null
+++ b/arch/blackfin/mach-bf548/gpio.c
@@ -0,0 +1,175 @@
+/*
+ * File: arch/blackfin/mach-bf548/gpio.c
+ * Based on:
+ * Author: Michael Hennerich (hennerich@blackfin.uclinux.org)
+ *
+ * Created:
+ * Description: GPIO Abstraction Layer
+ *
+ * Modified:
+ * Copyright 2007 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <asm/blackfin.h>
+#include <asm/gpio.h>
+#include <linux/irq.h>
+
+static struct gpio_port_t *gpio_array[gpio_bank(MAX_BLACKFIN_GPIOS)] = {
+ (struct gpio_port_t *) PORTA_FER,
+ (struct gpio_port_t *) PORTB_FER,
+ (struct gpio_port_t *) PORTC_FER,
+ (struct gpio_port_t *) PORTD_FER,
+ (struct gpio_port_t *) PORTE_FER,
+ (struct gpio_port_t *) PORTF_FER,
+ (struct gpio_port_t *) PORTG_FER,
+ (struct gpio_port_t *) PORTH_FER,
+ (struct gpio_port_t *) PORTI_FER,
+ (struct gpio_port_t *) PORTJ_FER,
+};
+
+static unsigned short reserved_map[gpio_bank(MAX_BLACKFIN_GPIOS)];
+
+inline int check_gpio(unsigned short gpio)
+{
+ if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15 \
+ || gpio == GPIO_PH14 || gpio == GPIO_PH15 \
+ || gpio > MAX_BLACKFIN_GPIOS)
+ return -EINVAL;
+ return 0;
+}
+
+static void port_setup(unsigned short gpio, unsigned short usage)
+{
+ if (usage == GPIO_USAGE) {
+ if (gpio_array[gpio_bank(gpio)]->port_fer & gpio_bit(gpio))
+ printk(KERN_WARNING "bfin-gpio: Possible Conflict with Peripheral "
+ "usage and GPIO %d detected!\n", gpio);
+ gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
+ } else
+ gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
+ SSYNC();
+}
+
+static int __init bfin_gpio_init(void)
+{
+ int i;
+
+ printk(KERN_INFO "Blackfin GPIO Controller\n");
+
+ for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE)
+ reserved_map[gpio_bank(i)] = 0;
+
+ return 0;
+}
+
+arch_initcall(bfin_gpio_init);
+
+
+/***********************************************************
+*
+* FUNCTIONS: Blackfin GPIO Driver
+*
+* INPUTS/OUTPUTS:
+* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS
+*
+*
+* DESCRIPTION: Blackfin GPIO Driver API
+*
+* CAUTION:
+*************************************************************
+* MODIFICATION HISTORY :
+**************************************************************/
+
+int gpio_request(unsigned short gpio, const char *label)
+{
+ unsigned long flags;
+
+ if (check_gpio(gpio) < 0)
+ return -EINVAL;
+
+ local_irq_save(flags);
+
+ if (unlikely(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+ printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved!\n", gpio);
+ dump_stack();
+ local_irq_restore(flags);
+ return -EBUSY;
+ }
+ reserved_map[gpio_bank(gpio)] |= gpio_bit(gpio);
+
+ local_irq_restore(flags);
+
+ port_setup(gpio, GPIO_USAGE);
+
+ return 0;
+}
+EXPORT_SYMBOL(gpio_request);
+
+
+void gpio_free(unsigned short gpio)
+{
+ unsigned long flags;
+
+ if (check_gpio(gpio) < 0)
+ return;
+
+ local_irq_save(flags);
+
+ if (unlikely(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
+ printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio);
+ dump_stack();
+ local_irq_restore(flags);
+ return;
+ }
+
+ reserved_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);
+
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(gpio_free);
+
+
+void gpio_direction_input(unsigned short gpio)
+{
+ unsigned long flags;
+
+ BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+
+ local_irq_save(flags);
+ gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio);
+ gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio);
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(gpio_direction_input);
+
+void gpio_direction_output(unsigned short gpio)
+{
+ unsigned long flags;
+
+ BUG_ON(!(reserved_map[gpio_bank(gpio)] & gpio_bit(gpio)));
+
+ local_irq_save(flags);
+ gpio_array[gpio_bank(gpio)]->port_inen &= ~gpio_bit(gpio);
+ gpio_array[gpio_bank(gpio)]->port_dir_set = gpio_bit(gpio);
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL(gpio_direction_output);
diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S
new file mode 100644
index 000000000000..0e1a25447391
--- /dev/null
+++ b/arch/blackfin/mach-bf548/head.S
@@ -0,0 +1,507 @@
+/*
+ * File: arch/blackfin/mach-bf548/head.S
+ * Based on: arch/blackfin/mach-bf537/head.S
+ * Author: Jeff Dionne <jeff@uclinux.org> COPYRIGHT 1998 D. Jeff Dionne
+ *
+ * Created: 1998
+ * Description: Startup code for Blackfin BF548
+ *
+ * Modified:
+ * Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/linkage.h>
+#include <asm/blackfin.h>
+#if CONFIG_BFIN_KERNEL_CLOCK
+#include <asm/mach/mem_init.h>
+#endif
+
+.global __rambase
+.global __ramstart
+.global __ramend
+.extern ___bss_stop
+.extern ___bss_start
+.extern _bf53x_relocate_l1_mem
+
+#define INITIAL_STACK 0xFFB01000
+
+.text
+
+ENTRY(__start)
+ENTRY(__stext)
+ /* R0: argument of command line string, passed from uboot, save it */
+ R7 = R0;
+ /* Set the SYSCFG register */
+ R0 = 0x36;
+ SYSCFG = R0; /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/
+ R0 = 0;
+
+ /* Clear Out All the data and pointer Registers*/
+ R1 = R0;
+ R2 = R0;
+ R3 = R0;
+ R4 = R0;
+ R5 = R0;
+ R6 = R0;
+
+ P0 = R0;
+ P1 = R0;
+ P2 = R0;
+ P3 = R0;
+ P4 = R0;
+ P5 = R0;
+
+ LC0 = r0;
+ LC1 = r0;
+ L0 = r0;
+ L1 = r0;
+ L2 = r0;
+ L3 = r0;
+
+ /* Clear Out All the DAG Registers*/
+ B0 = r0;
+ B1 = r0;
+ B2 = r0;
+ B3 = r0;
+
+ I0 = r0;
+ I1 = r0;
+ I2 = r0;
+ I3 = r0;
+
+ M0 = r0;
+ M1 = r0;
+ M2 = r0;
+ M3 = r0;
+
+ /* Turn off the icache */
+ p0.l = (IMEM_CONTROL & 0xFFFF);
+ p0.h = (IMEM_CONTROL >> 16);
+ R1 = [p0];
+ R0 = ~ENICPLB;
+ R0 = R0 & R1;
+ [p0] = R0;
+ SSYNC;
+
+ /* Turn off the dcache */
+ p0.l = (DMEM_CONTROL & 0xFFFF);
+ p0.h = (DMEM_CONTROL >> 16);
+ R1 = [p0];
+ R0 = ~ENDCPLB;
+ R0 = R0 & R1;
+ [p0] = R0;
+ SSYNC;
+
+ /* Initialize stack pointer */
+ SP.L = LO(INITIAL_STACK);
+ SP.H = HI(INITIAL_STACK);
+ FP = SP;
+ USP = SP;
+
+ /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */
+ call _bf53x_relocate_l1_mem;
+#if CONFIG_BFIN_KERNEL_CLOCK
+ call _start_dma_code;
+#endif
+ /* Code for initializing Async memory banks */
+
+ p2.h = hi(EBIU_AMBCTL1);
+ p2.l = lo(EBIU_AMBCTL1);
+ r0.h = hi(AMBCTL1VAL);
+ r0.l = lo(AMBCTL1VAL);
+ [p2] = r0;
+ ssync;
+
+ p2.h = hi(EBIU_AMBCTL0);
+ p2.l = lo(EBIU_AMBCTL0);
+ r0.h = hi(AMBCTL0VAL);
+ r0.l = lo(AMBCTL0VAL);
+ [p2] = r0;
+ ssync;
+
+ p2.h = hi(EBIU_AMGCTL);
+ p2.l = lo(EBIU_AMGCTL);
+ r0 = AMGCTLVAL;
+ w[p2] = r0;
+ ssync;
+
+ /* This section keeps the processor in supervisor mode
+ * during kernel boot. Switches to user mode at end of boot.
+ * See page 3-9 of Hardware Reference manual for documentation.
+ */
+
+ /* EVT15 = _real_start */
+
+ p0.l = lo(EVT15);
+ p0.h = hi(EVT15);
+ p1.l = _real_start;
+ p1.h = _real_start;
+ [p0] = p1;
+ csync;
+
+ p0.l = lo(IMASK);
+ p0.h = hi(IMASK);
+ p1.l = IMASK_IVG15;
+ p1.h = 0x0;
+ [p0] = p1;
+ csync;
+
+ raise 15;
+ p0.l = .LWAIT_HERE;
+ p0.h = .LWAIT_HERE;
+ reti = p0;
+#if defined (ANOMALY_05000281)
+ nop;
+ nop;
+ nop;
+#endif
+ rti;
+
+.LWAIT_HERE:
+ jump .LWAIT_HERE;
+
+ENTRY(_real_start)
+ [ -- sp ] = reti;
+ p0.l = lo(WDOG_CTL);
+ p0.h = hi(WDOG_CTL);
+ r0 = 0xAD6(z);
+ w[p0] = r0; /* watchdog off for now */
+ ssync;
+
+ /* Code update for BSS size == 0
+ * Zero out the bss region.
+ */
+
+ p1.l = ___bss_start;
+ p1.h = ___bss_start;
+ p2.l = ___bss_stop;
+ p2.h = ___bss_stop;
+ r0 = 0;
+ p2 -= p1;
+ lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2;
+.L_clear_bss:
+ B[p1++] = r0;
+
+ /* In case there is a NULL pointer reference
+ * Zero out region before stext
+ */
+
+ p1.l = 0x0;
+ p1.h = 0x0;
+ r0.l = __stext;
+ r0.h = __stext;
+ r0 = r0 >> 1;
+ p2 = r0;
+ r0 = 0;
+ lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2;
+.L_clear_zero:
+ W[p1++] = r0;
+
+ /* pass the uboot arguments to the global value command line */
+ R0 = R7;
+ call _cmdline_init;
+
+ p1.l = __rambase;
+ p1.h = __rambase;
+ r0.l = __sdata;
+ r0.h = __sdata;
+ [p1] = r0;
+
+ p1.l = __ramstart;
+ p1.h = __ramstart;
+ p3.l = ___bss_stop;
+ p3.h = ___bss_stop;
+
+ r1 = p3;
+ [p1] = r1;
+
+
+ /*
+ * load the current thread pointer and stack
+ */
+ r1.l = _init_thread_union;
+ r1.h = _init_thread_union;
+
+ r2.l = 0x2000;
+ r2.h = 0x0000;
+ r1 = r1 + r2;
+ sp = r1;
+ usp = sp;
+ fp = sp;
+ call _start_kernel;
+.L_exit:
+ jump.s .L_exit;
+
+.section .l1.text
+#if CONFIG_BFIN_KERNEL_CLOCK
+ENTRY(_start_dma_code)
+
+ /* Enable PHY CLK buffer output */
+ p0.h = hi(VR_CTL);
+ p0.l = lo(VR_CTL);
+ r0.l = w[p0];
+ bitset(r0, 14);
+ w[p0] = r0.l;
+ ssync;
+
+ p0.h = hi(SIC_IWR);
+ p0.l = lo(SIC_IWR);
+ r0.l = 0x1;
+ r0.h = 0x0;
+ [p0] = r0;
+ SSYNC;
+
+ /*
+ * Set PLL_CTL
+ * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors
+ * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK
+ * - [7] = output delay (add 200ps of delay to mem signals)
+ * - [6] = input delay (add 200ps of input delay to mem signals)
+ * - [5] = PDWN : 1=All Clocks off
+ * - [3] = STOPCK : 1=Core Clock off
+ * - [1] = PLL_OFF : 1=Disable Power to PLL
+ * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL
+ * all other bits set to zero
+ */
+
+ p0.h = hi(PLL_LOCKCNT);
+ p0.l = lo(PLL_LOCKCNT);
+ r0 = 0x300(Z);
+ w[p0] = r0.l;
+ ssync;
+
+ P2.H = hi(EBIU_SDGCTL);
+ P2.L = lo(EBIU_SDGCTL);
+ R0 = [P2];
+ BITSET (R0, 24);
+ [P2] = R0;
+ SSYNC;
+
+ r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */
+ r0 = r0 << 9; /* Shift it over, */
+ r1 = CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/
+ r0 = r1 | r0;
+ r1 = PLL_BYPASS; /* Bypass the PLL? */
+ r1 = r1 << 8; /* Shift it over */
+ r0 = r1 | r0; /* add them all together */
+
+ p0.h = hi(PLL_CTL);
+ p0.l = lo(PLL_CTL); /* Load the address */
+ cli r2; /* Disable interrupts */
+ ssync;
+ w[p0] = r0.l; /* Set the value */
+ idle; /* Wait for the PLL to stablize */
+ sti r2; /* Enable interrupts */
+
+.Lcheck_again:
+ p0.h = hi(PLL_STAT);
+ p0.l = lo(PLL_STAT);
+ R0 = W[P0](Z);
+ CC = BITTST(R0,5);
+ if ! CC jump .Lcheck_again;
+
+ /* Configure SCLK & CCLK Dividers */
+ r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV);
+ p0.h = hi(PLL_DIV);
+ p0.l = lo(PLL_DIV);
+ w[p0] = r0.l;
+ ssync;
+
+ p0.l = lo(EBIU_SDRRC);
+ p0.h = hi(EBIU_SDRRC);
+ r0 = mem_SDRRC;
+ w[p0] = r0.l;
+ ssync;
+
+ p0.l = (EBIU_SDBCTL & 0xFFFF);
+ p0.h = (EBIU_SDBCTL >> 16); /* SDRAM Memory Bank Control Register */
+ r0 = mem_SDBCTL;
+ w[p0] = r0.l;
+ ssync;
+
+ P2.H = hi(EBIU_SDGCTL);
+ P2.L = lo(EBIU_SDGCTL);
+ R0 = [P2];
+ BITCLR (R0, 24);
+ p0.h = hi(EBIU_SDSTAT);
+ p0.l = lo(EBIU_SDSTAT);
+ r2.l = w[p0];
+ cc = bittst(r2,3);
+ if !cc jump .Lskip;
+ NOP;
+ BITSET (R0, 23);
+.Lskip:
+ [P2] = R0;
+ SSYNC;
+
+ R0.L = lo(mem_SDGCTL);
+ R0.H = hi(mem_SDGCTL);
+ R1 = [p2];
+ R1 = R1 | R0;
+ [P2] = R1;
+ SSYNC;
+
+ p0.h = hi(SIC_IWR);
+ p0.l = lo(SIC_IWR);
+ r0.l = lo(IWR_ENABLE_ALL);
+ r0.h = hi(IWR_ENABLE_ALL);
+ [p0] = r0;
+ SSYNC;
+
+ RTS;
+#endif /* CONFIG_BFIN_KERNEL_CLOCK */
+
+ENTRY(_bfin_reset)
+ /* No more interrupts to be handled*/
+ CLI R6;
+ SSYNC;
+
+#if defined(CONFIG_MTD_M25P80)
+/*
+ * The following code fix the SPI flash reboot issue,
+ * /CS signal of the chip which is using PF10 return to GPIO mode
+ */
+ p0.h = hi(PORTF_FER);
+ p0.l = lo(PORTF_FER);
+ r0.l = 0x0000;
+ w[p0] = r0.l;
+ SSYNC;
+
+/* /CS return to high */
+ p0.h = hi(PORTFIO);
+ p0.l = lo(PORTFIO);
+ r0.l = 0xFFFF;
+ w[p0] = r0.l;
+ SSYNC;
+
+/* Delay some time, This is necessary */
+ r1.h = 0;
+ r1.l = 0x400;
+ p1 = r1;
+ lsetup (_delay_lab1,_delay_lab1_end ) lc1 = p1;
+_delay_lab1:
+ r0.h = 0;
+ r0.l = 0x8000;
+ p0 = r0;
+ lsetup (_delay_lab0,_delay_lab0_end ) lc0 = p0;
+_delay_lab0:
+ nop;
+_delay_lab0_end:
+ nop;
+_delay_lab1_end:
+ nop;
+#endif
+
+ /* Clear the bits 13-15 in SWRST if they werent cleared */
+ p0.h = hi(SWRST);
+ p0.l = lo(SWRST);
+ csync;
+ r0.l = w[p0];
+
+ /* Clear the IMASK register */
+ p0.h = hi(IMASK);
+ p0.l = lo(IMASK);
+ r0 = 0x0;
+ [p0] = r0;
+
+ /* Clear the ILAT register */
+ p0.h = hi(ILAT);
+ p0.l = lo(ILAT);
+ r0 = [p0];
+ [p0] = r0;
+ SSYNC;
+
+ /* Disable the WDOG TIMER */
+ p0.h = hi(WDOG_CTL);
+ p0.l = lo(WDOG_CTL);
+ r0.l = 0xAD6;
+ w[p0] = r0.l;
+ SSYNC;
+
+ /* Clear the sticky bit incase it is already set */
+ p0.h = hi(WDOG_CTL);
+ p0.l = lo(WDOG_CTL);
+ r0.l = 0x8AD6;
+ w[p0] = r0.l;
+ SSYNC;
+
+ /* Program the count value */
+ R0.l = 0x100;
+ R0.h = 0x0;
+ P0.h = hi(WDOG_CNT);
+ P0.l = lo(WDOG_CNT);
+ [P0] = R0;
+ SSYNC;
+
+ /* Program WDOG_STAT if necessary */
+ P0.h = hi(WDOG_CTL);
+ P0.l = lo(WDOG_CTL);
+ R0 = W[P0](Z);
+ CC = BITTST(R0,1);
+ if !CC JUMP .LWRITESTAT;
+ CC = BITTST(R0,2);
+ if !CC JUMP .LWRITESTAT;
+ JUMP .LSKIP_WRITE;
+
+.LWRITESTAT:
+ /* When watch dog timer is enabled,
+ * a write to STAT will load the contents of CNT to STAT
+ */
+ R0 = 0x0000(z);
+ P0.h = hi(WDOG_STAT);
+ P0.l = lo(WDOG_STAT)
+ [P0] = R0;
+ SSYNC;
+
+.LSKIP_WRITE:
+ /* Enable the reset event */
+ P0.h = hi(WDOG_CTL);
+ P0.l = lo(WDOG_CTL);
+ R0 = W[P0](Z);
+ BITCLR(R0,1);
+ BITCLR(R0,2);
+ W[P0] = R0.L;
+ SSYNC;
+ NOP;
+
+ /* Enable the wdog counter */
+ R0 = W[P0](Z);
+ BITCLR(R0,4);
+ W[P0] = R0.L;
+ SSYNC;
+
+ IDLE;
+
+ RTS;
+
+.data
+
+/*
+ * Set up the usable of RAM stuff. Size of RAM is determined then
+ * an initial stack set up at the end.
+ */
+
+.align 4
+__rambase:
+.long 0
+__ramstart:
+.long 0
+__ramend:
+.long 0
diff --git a/arch/blackfin/mach-bf548/ints-priority.c b/arch/blackfin/mach-bf548/ints-priority.c
new file mode 100644
index 000000000000..dde450f119e1
--- /dev/null
+++ b/arch/blackfin/mach-bf548/ints-priority.c
@@ -0,0 +1,137 @@
+/*
+ * File: arch/blackfin/mach-bf537/ints-priority.c
+ * Based on: arch/blackfin/mach-bf533/ints-priority.c
+ * Author: Michael Hennerich
+ *
+ * Created:
+ * Description: Set up the interupt priorities
+ *
+ * Modified:
+ * Copyright 2004-2006 Analog Devices Inc.
+ *
+ * Bugs: Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/module.h>
+#include <asm/blackfin.h>
+#include <asm/irq.h>
+
+void program_IAR(void)
+{
+ /* Program the IAR0 Register with the configured priority */
+ bfin_write_SIC_IAR0(((CONFIG_IRQ_PLL_WAKEUP - 7) << IRQ_PLL_WAKEUP_POS) |
+ ((CONFIG_IRQ_DMAC0_ERR - 7) << IRQ_DMAC0_ERR_POS) |
+ ((CONFIG_IRQ_EPPI0_ERR - 7) << IRQ_EPPI0_ERR_POS) |
+ ((CONFIG_IRQ_SPORT0_ERR - 7) << IRQ_SPORT0_ERR_POS) |
+ ((CONFIG_IRQ_SPORT1_ERR - 7) << IRQ_SPORT1_ERR_POS) |
+ ((CONFIG_IRQ_SPI0_ERR - 7) << IRQ_SPI0_ERR_POS) |
+ ((CONFIG_IRQ_UART0_ERR - 7) << IRQ_UART0_ERR_POS) |
+ ((CONFIG_IRQ_RTC - 7) << IRQ_RTC_POS));
+
+ bfin_write_SIC_IAR1(((CONFIG_IRQ_EPPI0 - 7) << IRQ_EPPI0_POS) |
+ ((CONFIG_IRQ_SPORT0_RX - 7) << IRQ_SPORT0_RX_POS) |
+ ((CONFIG_IRQ_SPORT0_TX - 7) << IRQ_SPORT0_TX_POS) |
+ ((CONFIG_IRQ_SPORT1_RX - 7) << IRQ_SPORT1_RX_POS) |
+ ((CONFIG_IRQ_SPORT1_TX - 7) << IRQ_SPORT1_TX_POS) |
+ ((CONFIG_IRQ_SPI0 - 7) << IRQ_SPI0_POS) |
+ ((CONFIG_IRQ_UART0_RX - 7) << IRQ_UART0_RX_POS) |
+ ((CONFIG_IRQ_UART0_TX - 7) << IRQ_UART0_TX_POS));
+
+ bfin_write_SIC_IAR2(((CONFIG_IRQ_TIMER8 - 7) << IRQ_TIMER8_POS) |
+ ((CONFIG_IRQ_TIMER9 - 7) << IRQ_TIMER9_POS) |
+ ((CONFIG_IRQ_PINT0 - 7) << IRQ_PINT0_POS) |
+ ((CONFIG_IRQ_PINT1 - 7) << IRQ_PINT1_POS) |
+ ((CONFIG_IRQ_MDMAS0 - 7) << IRQ_MDMAS0_POS) |
+ ((CONFIG_IRQ_MDMAS1 - 7) << IRQ_MDMAS1_POS) |
+ ((CONFIG_IRQ_WATCHDOG - 7) << IRQ_WATCHDOG_POS));
+
+ bfin_write_SIC_IAR3(((CONFIG_IRQ_DMAC1_ERR - 7) << IRQ_DMAC1_ERR_POS) |
+ ((CONFIG_IRQ_SPORT2_ERR - 7) << IRQ_SPORT2_ERR_POS) |
+ ((CONFIG_IRQ_SPORT3_ERR - 7) << IRQ_SPORT3_ERR_POS) |
+ ((CONFIG_IRQ_MXVR_DATA - 7) << IRQ_MXVR_DATA_POS) |
+ ((CONFIG_IRQ_SPI1_ERR - 7) << IRQ_SPI1_ERR_POS) |
+ ((CONFIG_IRQ_SPI2_ERR - 7) << IRQ_SPI2_ERR_POS) |
+ ((CONFIG_IRQ_UART1_ERR - 7) << IRQ_UART1_ERR_POS) |
+ ((CONFIG_IRQ_UART2_ERR - 7) << IRQ_UART2_ERR_POS));
+
+ bfin_write_SIC_IAR4(((CONFIG_IRQ_CAN0_ERR - 7) << IRQ_CAN0_ERR_POS) |
+ ((CONFIG_IRQ_SPORT2_RX - 7) << IRQ_SPORT2_RX_POS) |
+ ((CONFIG_IRQ_SPORT2_TX - 7) << IRQ_SPORT2_TX_POS) |
+ ((CONFIG_IRQ_SPORT3_RX - 7) << IRQ_SPORT3_RX_POS) |
+ ((CONFIG_IRQ_SPORT3_TX - 7) << IRQ_SPORT3_TX_POS) |
+ ((CONFIG_IRQ_EPPI1 - 7) << IRQ_EPPI1_POS) |
+ ((CONFIG_IRQ_EPPI2 - 7) << IRQ_EPPI2_POS) |
+ ((CONFIG_IRQ_SPI1 - 7) << IRQ_SPI1_POS));
+
+ bfin_write_SIC_IAR5(((CONFIG_IRQ_SPI2 - 7) << IRQ_SPI2_POS) |
+ ((CONFIG_IRQ_UART1_RX - 7) << IRQ_UART1_RX_POS) |
+ ((CONFIG_IRQ_UART1_TX - 7) << IRQ_UART1_TX_POS) |
+ ((CONFIG_IRQ_ATAPI_RX - 7) << IRQ_ATAPI_RX_POS) |
+ ((CONFIG_IRQ_ATAPI_TX - 7) << IRQ_ATAPI_TX_POS) |
+ ((CONFIG_IRQ_TWI0 - 7) << IRQ_TWI0_POS) |
+ ((CONFIG_IRQ_TWI1 - 7) << IRQ_TWI1_POS) |
+ ((CONFIG_IRQ_CAN0_RX - 7) << IRQ_CAN0_RX_POS));
+
+ bfin_write_SIC_IAR6(((CONFIG_IRQ_CAN0_TX - 7) << IRQ_CAN0_TX_POS) |
+ ((CONFIG_IRQ_MDMAS2 - 7) << IRQ_MDMAS2_POS) |
+ ((CONFIG_IRQ_MDMAS3 - 7) << IRQ_MDMAS3_POS) |
+ ((CONFIG_IRQ_MXVR_ERR - 7) << IRQ_MXVR_ERR_POS) |
+ ((CONFIG_IRQ_MXVR_MSG - 7) << IRQ_MXVR_MSG_POS) |
+ ((CONFIG_IRQ_MXVR_PKT - 7) << IRQ_MXVR_PKT_POS) |
+ ((CONFIG_IRQ_EPPI1_ERR - 7) << IRQ_EPPI1_ERR_POS) |
+ ((CONFIG_IRQ_EPPI2_ERR - 7) << IRQ_EPPI2_ERR_POS));
+
+ bfin_write_SIC_IAR7(((CONFIG_IRQ_UART3_ERR - 7) << IRQ_UART3_ERR_POS) |
+ ((CONFIG_IRQ_HOST_ERR - 7) << IRQ_HOST_ERR_POS) |
+ ((CONFIG_IRQ_PIXC_ERR - 7) << IRQ_PIXC_ERR_POS) |
+ ((CONFIG_IRQ_NFC_ERR - 7) << IRQ_NFC_ERR_POS) |
+ ((CONFIG_IRQ_ATAPI_ERR - 7) << IRQ_ATAPI_ERR_POS) |
+ ((CONFIG_IRQ_CAN1_ERR - 7) << IRQ_CAN1_ERR_POS) |
+ ((CONFIG_IRQ_HS_DMA_ERR - 7) << IRQ_HS_DMA_ERR_POS));
+
+ bfin_write_SIC_IAR8(((CONFIG_IRQ_PIXC_IN0 - 7) << IRQ_PIXC_IN1_POS) |
+ ((CONFIG_IRQ_PIXC_IN1 - 7) << IRQ_PIXC_IN1_POS) |
+ ((CONFIG_IRQ_PIXC_OUT - 7) << IRQ_PIXC_OUT_POS) |
+ ((CONFIG_IRQ_SDH - 7) << IRQ_SDH_POS) |
+ ((CONFIG_IRQ_CNT - 7) << IRQ_CNT_POS) |
+ ((CONFIG_IRQ_KEY - 7) << IRQ_KEY_POS) |
+ ((CONFIG_IRQ_CAN1_RX - 7) << IRQ_CAN1_RX_POS) |
+ ((CONFIG_IRQ_CAN1_TX - 7) << IRQ_CAN1_TX_POS));
+
+ bfin_write_SIC_IAR9(((CONFIG_IRQ_SDH_MASK0 - 7) << IRQ_SDH_MASK0_POS) |
+ ((CONFIG_IRQ_SDH_MASK1 - 7) << IRQ_SDH_MASK1_POS) |
+ ((CONFIG_IRQ_USB_INT0 - 7) << IRQ_USB_INT0_POS) |
+ ((CONFIG_IRQ_USB_INT1 - 7) << IRQ_USB_INT1_POS) |
+ ((CONFIG_IRQ_USB_INT2 - 7) << IRQ_USB_INT2_POS) |
+ ((CONFIG_IRQ_USB_DMA - 7) << IRQ_USB_DMA_POS) |
+ ((CONFIG_IRQ_OTPSEC - 7) << IRQ_OTPSEC_POS));
+
+ bfin_write_SIC_IAR10(((CONFIG_IRQ_TIMER0 - 7) << IRQ_TIMER0_POS) |
+ ((CONFIG_IRQ_TIMER1 - 7) << IRQ_TIMER1_POS));
+
+ bfin_write_SIC_IAR11(((CONFIG_IRQ_TIMER2 - 7) << IRQ_TIMER2_POS) |
+ ((CONFIG_IRQ_TIMER3 - 7) << IRQ_TIMER3_POS) |
+ ((CONFIG_IRQ_TIMER4 - 7) << IRQ_TIMER4_POS) |
+ ((CONFIG_IRQ_TIMER5 - 7) << IRQ_TIMER5_POS) |
+ ((CONFIG_IRQ_TIMER6 - 7) << IRQ_TIMER6_POS) |
+ ((CONFIG_IRQ_TIMER7 - 7) << IRQ_TIMER7_POS) |
+ ((CONFIG_IRQ_PINT2 - 7) << IRQ_PINT2_POS) |
+ ((CONFIG_IRQ_PINT3 - 7) << IRQ_PINT3_POS));
+
+ SSYNC();
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.