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-rw-r--r--arch/blackfin/cpu/Makefile4
-rw-r--r--arch/blackfin/cpu/cpu.c32
-rw-r--r--arch/blackfin/cpu/gpio.c145
-rw-r--r--arch/blackfin/cpu/initcode.c71
-rw-r--r--arch/blackfin/cpu/serial.c369
-rw-r--r--arch/blackfin/cpu/serial.h118
-rw-r--r--arch/blackfin/cpu/serial1.h348
-rw-r--r--arch/blackfin/cpu/serial4.h161
-rw-r--r--arch/blackfin/cpu/start.S29
-rw-r--r--arch/blackfin/cpu/watchdog.c23
10 files changed, 107 insertions, 1193 deletions
diff --git a/arch/blackfin/cpu/Makefile b/arch/blackfin/cpu/Makefile
index 0a72ec5df3..1421cb2ca2 100644
--- a/arch/blackfin/cpu/Makefile
+++ b/arch/blackfin/cpu/Makefile
@@ -18,14 +18,12 @@ CEXTRA := initcode.o
SEXTRA := start.o
SOBJS := interrupt.o cache.o
COBJS-y += cpu.o
-COBJS-y += gpio.o
+COBJS-$(CONFIG_ADI_GPIO1) += gpio.o
COBJS-y += interrupts.o
COBJS-$(CONFIG_JTAG_CONSOLE) += jtag-console.o
COBJS-y += os_log.o
COBJS-y += reset.o
-COBJS-y += serial.o
COBJS-y += traps.o
-COBJS-$(CONFIG_HW_WATCHDOG) += watchdog.o
SRCS := $(SEXTRA:.o=.S) $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS-y) $(SOBJS))
diff --git a/arch/blackfin/cpu/cpu.c b/arch/blackfin/cpu/cpu.c
index 0be2e2b835..218f57ed38 100644
--- a/arch/blackfin/cpu/cpu.c
+++ b/arch/blackfin/cpu/cpu.c
@@ -16,13 +16,39 @@
#include <asm/mach-common/bits/core.h>
#include <asm/mach-common/bits/ebiu.h>
#include <asm/mach-common/bits/trace.h>
+#include <asm/serial.h>
#include "cpu.h"
-#include "serial.h"
#include "initcode.h"
ulong bfin_poweron_retx;
+#if defined(CONFIG_CORE1_RUN) && defined(COREB_L1_CODE_START)
+void bfin_core1_start(void)
+{
+#ifdef BF561_FAMILY
+ /* Enable core 1 */
+ bfin_write_SYSCR(bfin_read_SYSCR() & ~0x0020);
+#else
+ /* Enable core 1 */
+ bfin_write32(RCU0_SVECT1, COREB_L1_CODE_START);
+ bfin_write32(RCU0_CRCTL, 0);
+
+ bfin_write32(RCU0_CRCTL, 0x2);
+
+ /* Check if core 1 starts */
+ while (!(bfin_read32(RCU0_CRSTAT) & 0x2))
+ continue;
+
+ bfin_write32(RCU0_CRCTL, 0);
+
+ /* flag to notify cces core 1 application */
+ bfin_write32(SDU0_MSG_SET, (1 << 19));
+#endif
+}
+#endif
+
+__attribute__ ((__noreturn__))
void cpu_init_f(ulong bootflag, ulong loaded_from_ldr)
{
#ifndef CONFIG_BFIN_BOOTROM_USES_EVT1
@@ -72,6 +98,10 @@ void cpu_init_f(ulong bootflag, ulong loaded_from_ldr)
# endif
#endif
+#if defined(CONFIG_CORE1_RUN) && defined(COREB_L1_CODE_START)
+ bfin_core1_start();
+#endif
+
serial_early_puts("Board init flash\n");
board_init_f(bootflag);
}
diff --git a/arch/blackfin/cpu/gpio.c b/arch/blackfin/cpu/gpio.c
index f684be531c..f74a0b7c0e 100644
--- a/arch/blackfin/cpu/gpio.c
+++ b/arch/blackfin/cpu/gpio.c
@@ -1,5 +1,6 @@
/*
- * GPIO Abstraction Layer
+ * ADI GPIO1 Abstraction Layer
+ * Support BF50x, BF51x, BF52x, BF53x and BF561 only.
*
* Copyright 2006-2010 Analog Devices Inc.
*
@@ -55,25 +56,6 @@ static struct gpio_port_t * const gpio_array[] = {
(struct gpio_port_t *) FIO0_FLAG_D,
(struct gpio_port_t *) FIO1_FLAG_D,
(struct gpio_port_t *) FIO2_FLAG_D,
-#elif defined(CONFIG_BF54x)
- (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,
-#elif defined(CONFIG_BF60x)
- (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,
#else
# error no gpio arrays defined
#endif
@@ -174,12 +156,6 @@ DECLARE_RESERVED_MAP(peri, gpio_bank(MAX_RESOURCES));
inline int check_gpio(unsigned gpio)
{
-#if defined(CONFIG_BF54x)
- if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
- || gpio == GPIO_PH14 || gpio == GPIO_PH15
- || gpio == GPIO_PJ14 || gpio == GPIO_PJ15)
- return -EINVAL;
-#endif
if (gpio >= MAX_BLACKFIN_GPIOS)
return -EINVAL;
return 0;
@@ -218,18 +194,6 @@ static void port_setup(unsigned gpio, unsigned short usage)
else
*port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
SSYNC();
-#elif defined(CONFIG_BF54x)
- if (usage == GPIO_USAGE)
- gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
- else
- gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
- SSYNC();
-#elif defined(CONFIG_BF60x)
- if (usage == GPIO_USAGE)
- gpio_array[gpio_bank(gpio)]->port_fer_clear = gpio_bit(gpio);
- else
- gpio_array[gpio_bank(gpio)]->port_fer_set = gpio_bit(gpio);
- SSYNC();
#endif
}
@@ -304,30 +268,6 @@ static void portmux_setup(unsigned short per)
}
}
}
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-inline void portmux_setup(unsigned short per)
-{
- u32 pmux;
- u16 ident = P_IDENT(per);
- u16 function = P_FUNCT2MUX(per);
-
- pmux = gpio_array[gpio_bank(ident)]->port_mux;
-
- pmux &= ~(0x3 << (2 * gpio_sub_n(ident)));
- pmux |= (function & 0x3) << (2 * gpio_sub_n(ident));
-
- gpio_array[gpio_bank(ident)]->port_mux = pmux;
-}
-
-inline u16 get_portmux(unsigned short per)
-{
- u32 pmux;
- u16 ident = P_IDENT(per);
-
- pmux = gpio_array[gpio_bank(ident)]->port_mux;
-
- return (pmux >> (2 * gpio_sub_n(ident)) & 0x3);
-}
#elif defined(CONFIG_BF52x) || defined(CONFIG_BF51x)
inline void portmux_setup(unsigned short per)
{
@@ -344,7 +284,6 @@ inline void portmux_setup(unsigned short per)
# define portmux_setup(...) do { } while (0)
#endif
-#if !defined(CONFIG_BF54x) && !defined(CONFIG_BF60x)
/***********************************************************
*
* FUNCTIONS: Blackfin General Purpose Ports Access Functions
@@ -491,15 +430,6 @@ GET_GPIO_P(both)
GET_GPIO_P(maska)
GET_GPIO_P(maskb)
-#else /* CONFIG_BF54x */
-
-unsigned short get_gpio_dir(unsigned gpio)
-{
- return (0x01 & (gpio_array[gpio_bank(gpio)]->dir_clear >> gpio_sub_n(gpio)));
-}
-
-#endif /* CONFIG_BF54x */
-
/***********************************************************
*
* FUNCTIONS: Blackfin Peripheral Resource Allocation
@@ -548,11 +478,7 @@ int peripheral_request(unsigned short per, const char *label)
* be requested and used by several drivers
*/
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- if (!((per & P_MAYSHARE) && get_portmux(per) == P_FUNCT2MUX(per))) {
-#else
if (!(per & P_MAYSHARE)) {
-#endif
/*
* Allow that the identical pin function can
* be requested from the same driver twice
@@ -641,7 +567,7 @@ void peripheral_free_list(const unsigned short per[])
* MODIFICATION HISTORY :
**************************************************************/
-int bfin_gpio_request(unsigned gpio, const char *label)
+int gpio_request(unsigned gpio, const char *label)
{
if (check_gpio(gpio) < 0)
return -EINVAL;
@@ -665,11 +591,9 @@ int bfin_gpio_request(unsigned gpio, const char *label)
gpio, get_label(gpio));
return -EBUSY;
}
-#if !defined(CONFIG_BF54x) && !defined(CONFIG_BF60x)
else { /* Reset POLAR setting when acquiring a gpio for the first time */
set_gpio_polar(gpio, 0);
}
-#endif
reserve(gpio, gpio);
set_label(gpio, label);
@@ -679,27 +603,27 @@ int bfin_gpio_request(unsigned gpio, const char *label)
return 0;
}
-#ifdef CONFIG_BFIN_GPIO_TRACK
-void bfin_gpio_free(unsigned gpio)
+int gpio_free(unsigned gpio)
{
if (check_gpio(gpio) < 0)
- return;
+ return -1;
if (unlikely(!is_reserved(gpio, gpio, 0))) {
gpio_error(gpio);
- return;
+ return -1;
}
unreserve(gpio, gpio);
set_label(gpio, "free");
+
+ return 0;
}
-#endif
-#ifdef BFIN_SPECIAL_GPIO_BANKS
+#ifdef ADI_SPECIAL_GPIO_BANKS
DECLARE_RESERVED_MAP(special_gpio, gpio_bank(MAX_RESOURCES));
-int bfin_special_gpio_request(unsigned gpio, const char *label)
+int special_gpio_request(unsigned gpio, const char *label)
{
/*
* Allow that the identical GPIO can
@@ -731,7 +655,7 @@ int bfin_special_gpio_request(unsigned gpio, const char *label)
return 0;
}
-void bfin_special_gpio_free(unsigned gpio)
+void special_gpio_free(unsigned gpio)
{
if (unlikely(!is_reserved(special_gpio, gpio, 0))) {
gpio_error(gpio);
@@ -744,21 +668,13 @@ void bfin_special_gpio_free(unsigned gpio)
}
#endif
-static inline void __bfin_gpio_direction_input(unsigned gpio)
+static inline void __gpio_direction_input(unsigned gpio)
{
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- gpio_array[gpio_bank(gpio)]->dir_clear = gpio_bit(gpio);
-#else
gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
-#endif
-#if defined(CONFIG_BF60x)
- gpio_array[gpio_bank(gpio)]->inen_set = gpio_bit(gpio);
-#else
gpio_array[gpio_bank(gpio)]->inen |= gpio_bit(gpio);
-#endif
}
-int bfin_gpio_direction_input(unsigned gpio)
+int gpio_direction_input(unsigned gpio)
{
unsigned long flags;
@@ -768,31 +684,24 @@ int bfin_gpio_direction_input(unsigned gpio)
}
local_irq_save(flags);
- __bfin_gpio_direction_input(gpio);
+ __gpio_direction_input(gpio);
AWA_DUMMY_READ(inen);
local_irq_restore(flags);
return 0;
}
-void bfin_gpio_toggle_value(unsigned gpio)
-{
-#ifdef CONFIG_BF54x
- gpio_set_value(gpio, !gpio_get_value(gpio));
-#else
- gpio_array[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
-#endif
-}
-
-void bfin_gpio_set_value(unsigned gpio, int arg)
+int gpio_set_value(unsigned gpio, int arg)
{
if (arg)
gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
else
gpio_array[gpio_bank(gpio)]->data_clear = gpio_bit(gpio);
+
+ return 0;
}
-int bfin_gpio_direction_output(unsigned gpio, int value)
+int gpio_direction_output(unsigned gpio, int value)
{
unsigned long flags;
@@ -803,17 +712,9 @@ int bfin_gpio_direction_output(unsigned gpio, int value)
local_irq_save(flags);
-#if defined(CONFIG_BF60x)
- gpio_array[gpio_bank(gpio)]->inen_clear = gpio_bit(gpio);
-#else
gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
-#endif
gpio_set_value(gpio, value);
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- gpio_array[gpio_bank(gpio)]->dir_set = gpio_bit(gpio);
-#else
gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
-#endif
AWA_DUMMY_READ(dir);
local_irq_restore(flags);
@@ -821,11 +722,8 @@ int bfin_gpio_direction_output(unsigned gpio, int value)
return 0;
}
-int bfin_gpio_get_value(unsigned gpio)
+int gpio_get_value(unsigned gpio)
{
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
- return (1 & (gpio_array[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)));
-#else
unsigned long flags;
if (unlikely(get_gpio_edge(gpio))) {
@@ -838,7 +736,6 @@ int bfin_gpio_get_value(unsigned gpio)
return ret;
} else
return get_gpio_data(gpio);
-#endif
}
/* If we are booting from SPI and our board lacks a strong enough pull up,
@@ -860,8 +757,7 @@ void bfin_reset_boot_spi_cs(unsigned short pin)
udelay(1);
}
-#ifdef CONFIG_BFIN_GPIO_TRACK
-void bfin_gpio_labels(void)
+void gpio_labels(void)
{
int c, gpio;
@@ -877,4 +773,3 @@ void bfin_gpio_labels(void)
continue;
}
}
-#endif
diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c
index 1a066806d1..ffaf1017d7 100644
--- a/arch/blackfin/cpu/initcode.c
+++ b/arch/blackfin/cpu/initcode.c
@@ -13,12 +13,12 @@
#include <config.h>
#include <asm/blackfin.h>
+#include <asm/mach-common/bits/watchdog.h>
#include <asm/mach-common/bits/bootrom.h>
#include <asm/mach-common/bits/core.h>
+#include <asm/serial.h>
-#define BUG() while (1) { asm volatile("emuexcpt;"); }
-
-#include "serial.h"
+#define BUG() while (1) asm volatile("emuexcpt;");
#ifndef __ADSPBF60x__
#include <asm/mach-common/bits/ebiu.h>
@@ -193,17 +193,12 @@ static inline void serial_init(void)
}
#endif
+#if CONFIG_BFIN_BOOT_MODE != BFIN_BOOT_BYPASS
if (BFIN_DEBUG_EARLY_SERIAL) {
- int enabled = serial_early_enabled(uart_base);
-
serial_early_init(uart_base);
-
- /* If the UART is off, that means we need to program
- * the baud rate ourselves initially.
- */
- if (!enabled)
- serial_early_set_baud(uart_base, CONFIG_BAUDRATE);
+ serial_early_set_baud(uart_base, CONFIG_BAUDRATE);
}
+#endif
}
__attribute__((always_inline))
@@ -262,7 +257,8 @@ program_nmi_handler(void)
"%1 = RETS;" /* Load addr of NMI handler */
"RETS = %0;" /* Restore RETS */
"[%2] = %1;" /* Write NMI handler */
- : "=r"(tmp1), "=r"(tmp2) : "ab"(EVT2)
+ : "=d"(tmp1), "=d"(tmp2)
+ : "ab"(EVT2)
);
}
@@ -462,19 +458,29 @@ program_early_devices(ADI_BOOT_DATA *bs, uint *sdivB, uint *divB, uint *vcoB)
if (CONFIG_BFIN_BOOT_MODE != BFIN_BOOT_BYPASS) {
serial_putc('e');
#ifdef __ADSPBF60x__
+ /* Reset system event controller */
bfin_write_SEC_GCTL(0x2);
+ bfin_write_SEC_CCTL(0x2);
SSYNC();
+
+ /* Enable fault event input and system reset action in fault
+ * controller. Route watchdog timeout event to fault interface.
+ */
bfin_write_SEC_FCTL(0xc1);
+ /* Enable watchdog interrupt source */
bfin_write_SEC_SCTL(2, bfin_read_SEC_SCTL(2) | 0x6);
-
- bfin_write_SEC_CCTL(0x2);
SSYNC();
+
+ /* Enable system event controller */
bfin_write_SEC_GCTL(0x1);
bfin_write_SEC_CCTL(0x1);
+ SSYNC();
#endif
+ bfin_write_WDOG_CTL(WDDIS);
+ SSYNC();
bfin_write_WDOG_CNT(MSEC_TO_SCLK(CONFIG_HW_WATCHDOG_TIMEOUT_INITCODE));
#if CONFIG_BFIN_BOOT_MODE != BFIN_BOOT_UART
- bfin_write_WDOG_CTL(0);
+ bfin_write_WDOG_CTL(WDEN);
#endif
serial_putc('f');
}
@@ -713,37 +719,32 @@ program_clocks(ADI_BOOT_DATA *bs, bool put_into_srfs)
__attribute__((always_inline)) static inline void
update_serial_clocks(ADI_BOOT_DATA *bs, uint sdivB, uint divB, uint vcoB)
{
- serial_putc('a');
-
/* Since we've changed the SCLK above, we may need to update
* the UART divisors (UART baud rates are based on SCLK).
* Do the division by hand as there are no native instructions
* for dividing which means we'd generate a libgcc reference.
*/
- if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_UART) {
- unsigned int sdivR, vcoR;
- int dividend = sdivB * divB * vcoR;
- int divisor = vcoB * sdivR;
- unsigned int quotient;
+ unsigned int sdivR, vcoR;
+ unsigned int dividend;
+ unsigned int divisor;
+ unsigned int quotient;
- serial_putc('b');
+ serial_putc('a');
#ifdef __ADSPBF60x__
- sdivR = bfin_read_CGU_DIV();
- sdivR = ((sdivR >> 8) & 0x1f) * ((sdivR >> 5) & 0x7);
- vcoR = (bfin_read_CGU_CTL() >> 8) & 0x7f;
+ sdivR = bfin_read_CGU_DIV();
+ sdivR = ((sdivR >> 8) & 0x1f) * ((sdivR >> 5) & 0x7);
+ vcoR = (bfin_read_CGU_CTL() >> 8) & 0x7f;
#else
- sdivR = bfin_read_PLL_DIV() & 0xf;
- vcoR = (bfin_read_PLL_CTL() >> 9) & 0x3f;
+ sdivR = bfin_read_PLL_DIV() & 0xf;
+ vcoR = (bfin_read_PLL_CTL() >> 9) & 0x3f;
#endif
- for (quotient = 0; dividend > 0; ++quotient)
- dividend -= divisor;
- serial_early_put_div(quotient - ANOMALY_05000230);
- serial_putc('c');
- }
-
- serial_putc('d');
+ dividend = sdivB * divB * vcoR;
+ divisor = vcoB * sdivR;
+ quotient = early_division(dividend, divisor);
+ serial_early_put_div(quotient - ANOMALY_05000230);
+ serial_putc('c');
}
__attribute__((always_inline)) static inline void
diff --git a/arch/blackfin/cpu/serial.c b/arch/blackfin/cpu/serial.c
deleted file mode 100644
index 9847e9f2c5..0000000000
--- a/arch/blackfin/cpu/serial.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * U-boot - serial.c Blackfin Serial Driver
- *
- * Copyright (c) 2005-2008 Analog Devices Inc.
- *
- * Copyright (c) 2003 Bas Vermeulen <bas@buyways.nl>,
- * BuyWays B.V. (www.buyways.nl)
- *
- * Based heavily on:
- * blkfinserial.c: Serial driver for BlackFin DSP internal USRTs.
- * Copyright(c) 2003 Metrowerks <mwaddel@metrowerks.com>
- * Copyright(c) 2001 Tony Z. Kou <tonyko@arcturusnetworks.com>
- * Copyright(c) 2001-2002 Arcturus Networks Inc. <www.arcturusnetworks.com>
- *
- * Based on code from 68328 version serial driver imlpementation which was:
- * Copyright (C) 1995 David S. Miller <davem@caip.rutgers.edu>
- * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
- * Copyright (C) 1998, 1999 D. Jeff Dionne <jeff@uclinux.org>
- * Copyright (C) 1999 Vladimir Gurevich <vgurevic@cisco.com>
- *
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * Licensed under the GPL-2 or later.
- */
-
-/* Anomaly notes:
- * 05000086 - we don't support autobaud
- * 05000099 - we only use DR bit, so losing others is not a problem
- * 05000100 - we don't use the UART_IIR register
- * 05000215 - we poll the uart (no dma/interrupts)
- * 05000225 - no workaround possible, but this shouldnt cause errors ...
- * 05000230 - we tweak the baud rate calculation slightly
- * 05000231 - we always use 1 stop bit
- * 05000309 - we always enable the uart before we modify it in anyway
- * 05000350 - we always enable the uart regardless of boot mode
- * 05000363 - we don't support break signals, so don't generate one
- */
-
-#include <common.h>
-#include <post.h>
-#include <watchdog.h>
-#include <serial.h>
-#include <linux/compiler.h>
-#include <asm/blackfin.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_UART_CONSOLE
-
-#include "serial.h"
-
-#ifdef CONFIG_DEBUG_SERIAL
-static uart_lsr_t cached_lsr[256];
-static uart_lsr_t cached_rbr[256];
-static size_t cache_count;
-
-/* The LSR is read-to-clear on some parts, so we have to make sure status
- * bits aren't inadvertently lost when doing various tests. This also
- * works around anomaly 05000099 at the same time by keeping a cumulative
- * tally of all the status bits.
- */
-static uart_lsr_t uart_lsr_save;
-static uart_lsr_t uart_lsr_read(uint32_t uart_base)
-{
- uart_lsr_t lsr = _lsr_read(pUART);
- uart_lsr_save |= (lsr & (OE|PE|FE|BI));
- return lsr | uart_lsr_save;
-}
-/* Just do the clear for everyone since it can't hurt. */
-static void uart_lsr_clear(uint32_t uart_base)
-{
- uart_lsr_save = 0;
- _lsr_write(pUART, -1);
-}
-#else
-/* When debugging is disabled, we only care about the DR bit, so if other
- * bits get set/cleared, we don't really care since we don't read them
- * anyways (and thus anomaly 05000099 is irrelevant).
- */
-static inline uart_lsr_t uart_lsr_read(uint32_t uart_base)
-{
- return _lsr_read(pUART);
-}
-static void uart_lsr_clear(uint32_t uart_base)
-{
- _lsr_write(pUART, -1);
-}
-#endif
-
-static void uart_putc(uint32_t uart_base, const char c)
-{
- /* send a \r for compatibility */
- if (c == '\n')
- serial_putc('\r');
-
- WATCHDOG_RESET();
-
- /* wait for the hardware fifo to clear up */
- while (!(uart_lsr_read(uart_base) & THRE))
- continue;
-
- /* queue the character for transmission */
- bfin_write(&pUART->thr, c);
- SSYNC();
-
- WATCHDOG_RESET();
-}
-
-static int uart_tstc(uint32_t uart_base)
-{
- WATCHDOG_RESET();
- return (uart_lsr_read(uart_base) & DR) ? 1 : 0;
-}
-
-static int uart_getc(uint32_t uart_base)
-{
- uint16_t uart_rbr_val;
-
- /* wait for data ! */
- while (!uart_tstc(uart_base))
- continue;
-
- /* grab the new byte */
- uart_rbr_val = bfin_read(&pUART->rbr);
-
-#ifdef CONFIG_DEBUG_SERIAL
- /* grab & clear the LSR */
- uart_lsr_t uart_lsr_val = uart_lsr_read(uart_base);
-
- cached_lsr[cache_count] = uart_lsr_val;
- cached_rbr[cache_count] = uart_rbr_val;
- cache_count = (cache_count + 1) % ARRAY_SIZE(cached_lsr);
-
- if (uart_lsr_val & (OE|PE|FE|BI)) {
- printf("\n[SERIAL ERROR]\n");
- do {
- --cache_count;
- printf("\t%3zu: RBR=0x%02x LSR=0x%02x\n", cache_count,
- cached_rbr[cache_count], cached_lsr[cache_count]);
- } while (cache_count > 0);
- return -1;
- }
-#endif
- uart_lsr_clear(uart_base);
-
- return uart_rbr_val;
-}
-
-#if CONFIG_POST & CONFIG_SYS_POST_UART
-# define LOOP(x) x
-#else
-# define LOOP(x)
-#endif
-
-#if BFIN_UART_HW_VER < 4
-
-LOOP(
-static void uart_loop(uint32_t uart_base, int state)
-{
- u16 mcr;
-
- /* Drain the TX fifo first so bytes don't come back */
- while (!(uart_lsr_read(uart_base) & TEMT))
- continue;
-
- mcr = bfin_read(&pUART->mcr);
- if (state)
- mcr |= LOOP_ENA | MRTS;
- else
- mcr &= ~(LOOP_ENA | MRTS);
- bfin_write(&pUART->mcr, mcr);
-}
-)
-
-#else
-
-LOOP(
-static void uart_loop(uint32_t uart_base, int state)
-{
- u32 control;
-
- /* Drain the TX fifo first so bytes don't come back */
- while (!(uart_lsr_read(uart_base) & TEMT))
- continue;
-
- control = bfin_read(&pUART->control);
- if (state)
- control |= LOOP_ENA | MRTS;
- else
- control &= ~(LOOP_ENA | MRTS);
- bfin_write(&pUART->control, control);
-}
-)
-
-#endif
-
-#ifdef CONFIG_SYS_BFIN_UART
-
-static void uart_puts(uint32_t uart_base, const char *s)
-{
- while (*s)
- uart_putc(uart_base, *s++);
-}
-
-#define DECL_BFIN_UART(n) \
-static int uart##n##_init(void) \
-{ \
- const unsigned short pins[] = { _P_UART(n, RX), _P_UART(n, TX), 0, }; \
- peripheral_request_list(pins, "bfin-uart"); \
- uart_init(MMR_UART(n)); \
- serial_early_set_baud(MMR_UART(n), gd->baudrate); \
- uart_lsr_clear(MMR_UART(n)); \
- return 0; \
-} \
-\
-static int uart##n##_uninit(void) \
-{ \
- return serial_early_uninit(MMR_UART(n)); \
-} \
-\
-static void uart##n##_setbrg(void) \
-{ \
- serial_early_set_baud(MMR_UART(n), gd->baudrate); \
-} \
-\
-static int uart##n##_getc(void) \
-{ \
- return uart_getc(MMR_UART(n)); \
-} \
-\
-static int uart##n##_tstc(void) \
-{ \
- return uart_tstc(MMR_UART(n)); \
-} \
-\
-static void uart##n##_putc(const char c) \
-{ \
- uart_putc(MMR_UART(n), c); \
-} \
-\
-static void uart##n##_puts(const char *s) \
-{ \
- uart_puts(MMR_UART(n), s); \
-} \
-\
-LOOP( \
-static void uart##n##_loop(int state) \
-{ \
- uart_loop(MMR_UART(n), state); \
-} \
-) \
-\
-struct serial_device bfin_serial##n##_device = { \
- .name = "bfin_uart"#n, \
- .start = uart##n##_init, \
- .stop = uart##n##_uninit, \
- .setbrg = uart##n##_setbrg, \
- .getc = uart##n##_getc, \
- .tstc = uart##n##_tstc, \
- .putc = uart##n##_putc, \
- .puts = uart##n##_puts, \
- LOOP(.loop = uart##n##_loop) \
-};
-
-#ifdef UART0_RBR
-DECL_BFIN_UART(0)
-#endif
-#ifdef UART1_RBR
-DECL_BFIN_UART(1)
-#endif
-#ifdef UART2_RBR
-DECL_BFIN_UART(2)
-#endif
-#ifdef UART3_RBR
-DECL_BFIN_UART(3)
-#endif
-
-__weak struct serial_device *default_serial_console(void)
-{
-#if CONFIG_UART_CONSOLE == 0
- return &bfin_serial0_device;
-#elif CONFIG_UART_CONSOLE == 1
- return &bfin_serial1_device;
-#elif CONFIG_UART_CONSOLE == 2
- return &bfin_serial2_device;
-#elif CONFIG_UART_CONSOLE == 3
- return &bfin_serial3_device;
-#endif
-}
-
-void bfin_serial_initialize(void)
-{
-#ifdef UART0_RBR
- serial_register(&bfin_serial0_device);
-#endif
-#ifdef UART1_RBR
- serial_register(&bfin_serial1_device);
-#endif
-#ifdef UART2_RBR
- serial_register(&bfin_serial2_device);
-#endif
-#ifdef UART3_RBR
- serial_register(&bfin_serial3_device);
-#endif
-}
-
-#else
-
-/* Symbol for our assembly to call. */
-void serial_set_baud(uint32_t baud)
-{
- serial_early_set_baud(UART_BASE, baud);
-}
-
-/* Symbol for common u-boot code to call.
- * Setup the baudrate (brg: baudrate generator).
- */
-void serial_setbrg(void)
-{
- serial_set_baud(gd->baudrate);
-}
-
-/* Symbol for our assembly to call. */
-void serial_initialize(void)
-{
- serial_early_init(UART_BASE);
-}
-
-/* Symbol for common u-boot code to call. */
-int serial_init(void)
-{
- serial_initialize();
- serial_setbrg();
- uart_lsr_clear(UART_BASE);
- return 0;
-}
-
-int serial_tstc(void)
-{
- return uart_tstc(UART_BASE);
-}
-
-int serial_getc(void)
-{
- return uart_getc(UART_BASE);
-}
-
-void serial_putc(const char c)
-{
- uart_putc(UART_BASE, c);
-}
-
-void serial_puts(const char *s)
-{
- while (*s)
- serial_putc(*s++);
-}
-
-LOOP(
-void serial_loop(int state)
-{
- uart_loop(UART_BASE, state);
-}
-)
-
-#endif
-
-#endif
diff --git a/arch/blackfin/cpu/serial.h b/arch/blackfin/cpu/serial.h
deleted file mode 100644
index 9200339668..0000000000
--- a/arch/blackfin/cpu/serial.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * serial.h - common serial defines for early debug and serial driver.
- * any functions defined here must be always_inline since
- * initcode cannot have function calls.
- *
- * Copyright (c) 2004-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __BFIN_CPU_SERIAL_H__
-#define __BFIN_CPU_SERIAL_H__
-
-#include <asm/blackfin.h>
-#include <asm/portmux.h>
-
-#ifndef CONFIG_UART_CONSOLE
-# define CONFIG_UART_CONSOLE 0
-#endif
-
-#ifdef CONFIG_DEBUG_EARLY_SERIAL
-# define BFIN_DEBUG_EARLY_SERIAL 1
-#else
-# define BFIN_DEBUG_EARLY_SERIAL 0
-#endif
-
-#if defined(__ADSPBF60x__)
-# define BFIN_UART_HW_VER 4
-#elif defined(__ADSPBF50x__) || defined(__ADSPBF54x__)
-# define BFIN_UART_HW_VER 2
-#else
-# define BFIN_UART_HW_VER 1
-#endif
-
-#define __PASTE_UART(num, pfx, sfx) pfx##num##_##sfx
-#define _PASTE_UART(num, pfx, sfx) __PASTE_UART(num, pfx, sfx)
-#define _P_UART(n, pin) _PASTE_UART(n, P_UART, pin)
-#define P_UART(pin) _P_UART(CONFIG_UART_CONSOLE, pin)
-
-#define pUART ((volatile struct bfin_mmr_serial *)uart_base)
-
-#ifndef __ASSEMBLY__
-__attribute__((always_inline))
-static inline void serial_do_portmux(void);
-#endif
-
-#if BFIN_UART_HW_VER < 4
-# include "serial1.h"
-#else
-# include "serial4.h"
-#endif
-
-#ifndef __ASSEMBLY__
-
-__attribute__((always_inline))
-static inline void serial_do_portmux(void)
-{
- if (!BFIN_DEBUG_EARLY_SERIAL) {
- const unsigned short pins[] = { P_UART(RX), P_UART(TX), 0, };
- peripheral_request_list(pins, "bfin-uart");
- return;
- }
-
- serial_early_do_portmux();
-}
-
-#ifndef BFIN_IN_INITCODE
-__attribute__((always_inline))
-static inline void serial_early_puts(const char *s)
-{
- if (BFIN_DEBUG_EARLY_SERIAL) {
- serial_puts("Early: ");
- serial_puts(s);
- }
-}
-#endif
-
-#else
-
-.macro serial_early_init
-#ifdef CONFIG_DEBUG_EARLY_SERIAL
- call _serial_initialize;
-#endif
-.endm
-
-.macro serial_early_set_baud
-#ifdef CONFIG_DEBUG_EARLY_SERIAL
- R0.L = LO(CONFIG_BAUDRATE);
- R0.H = HI(CONFIG_BAUDRATE);
- call _serial_set_baud;
-#endif
-.endm
-
-/* Since we embed the string right into our .text section, we need
- * to find its address. We do this by getting our PC and adding 2
- * bytes (which is the length of the jump instruction). Then we
- * pass this address to serial_puts().
- */
-#ifdef CONFIG_DEBUG_EARLY_SERIAL
-# define serial_early_puts(str) \
- .section .rodata; \
- 7: \
- .ascii "Early:"; \
- .ascii __FILE__; \
- .ascii ": "; \
- .ascii str; \
- .asciz "\n"; \
- .previous; \
- R0.L = 7b; \
- R0.H = 7b; \
- call _serial_puts;
-#else
-# define serial_early_puts(str)
-#endif
-
-#endif
-
-#endif
diff --git a/arch/blackfin/cpu/serial1.h b/arch/blackfin/cpu/serial1.h
deleted file mode 100644
index a20175bc7f..0000000000
--- a/arch/blackfin/cpu/serial1.h
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * serial.h - common serial defines for early debug and serial driver.
- * any functions defined here must be always_inline since
- * initcode cannot have function calls.
- *
- * Copyright (c) 2004-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __BFIN_CPU_SERIAL1_H__
-#define __BFIN_CPU_SERIAL1_H__
-
-#include <asm/mach-common/bits/uart.h>
-
-#ifndef __ASSEMBLY__
-
-#define MMR_UART(n) _PASTE_UART(n, UART, DLL)
-#ifdef UART_DLL
-# define UART0_DLL UART_DLL
-# if CONFIG_UART_CONSOLE != 0
-# error CONFIG_UART_CONSOLE must be 0 on parts with only one UART
-# endif
-#endif
-#define UART_BASE MMR_UART(CONFIG_UART_CONSOLE)
-
-#define LOB(x) ((x) & 0xFF)
-#define HIB(x) (((x) >> 8) & 0xFF)
-
-/*
- * All Blackfin system MMRs are padded to 32bits even if the register
- * itself is only 16bits. So use a helper macro to streamline this.
- */
-struct bfin_mmr_serial {
-#if BFIN_UART_HW_VER == 2
- u16 dll;
- u16 __pad_0;
- u16 dlh;
- u16 __pad_1;
- u16 gctl;
- u16 __pad_2;
- u16 lcr;
- u16 __pad_3;
- u16 mcr;
- u16 __pad_4;
- u16 lsr;
- u16 __pad_5;
- u16 msr;
- u16 __pad_6;
- u16 scr;
- u16 __pad_7;
- u16 ier_set;
- u16 __pad_8;
- u16 ier_clear;
- u16 __pad_9;
- u16 thr;
- u16 __pad_10;
- u16 rbr;
- u16 __pad_11;
-#else
- union {
- u16 dll;
- u16 thr;
- const u16 rbr;
- };
- const u16 __spad0;
- union {
- u16 dlh;
- u16 ier;
- };
- const u16 __spad1;
- const u16 iir;
- u16 __pad_0;
- u16 lcr;
- u16 __pad_1;
- u16 mcr;
- u16 __pad_2;
- u16 lsr;
- u16 __pad_3;
- u16 msr;
- u16 __pad_4;
- u16 scr;
- u16 __pad_5;
- const u32 __spad2;
- u16 gctl;
- u16 __pad_6;
-#endif
-};
-
-#define uart_lsr_t uint32_t
-#define _lsr_read(p) bfin_read(&p->lsr)
-#define _lsr_write(p, v) bfin_write(&p->lsr, v)
-
-#if BFIN_UART_HW_VER == 2
-# define ACCESS_LATCH()
-# define ACCESS_PORT_IER()
-#else
-# define ACCESS_LATCH() bfin_write_or(&pUART->lcr, DLAB)
-# define ACCESS_PORT_IER() bfin_write_and(&pUART->lcr, ~DLAB)
-#endif
-
-__attribute__((always_inline))
-static inline void serial_early_do_mach_portmux(char port, int mux_mask,
- int mux_func, int port_pin)
-{
- switch (port) {
-#if defined(__ADSPBF54x__)
- case 'B':
- bfin_write_PORTB_MUX((bfin_read_PORTB_MUX() &
- ~mux_mask) | mux_func);
- bfin_write_PORTB_FER(bfin_read_PORTB_FER() | port_pin);
- break;
- case 'E':
- bfin_write_PORTE_MUX((bfin_read_PORTE_MUX() &
- ~mux_mask) | mux_func);
- bfin_write_PORTE_FER(bfin_read_PORTE_FER() | port_pin);
- break;
-#endif
-#if defined(__ADSPBF50x__) || defined(__ADSPBF51x__) || defined(__ADSPBF52x__)
- case 'F':
- bfin_write_PORTF_MUX((bfin_read_PORTF_MUX() &
- ~mux_mask) | mux_func);
- bfin_write_PORTF_FER(bfin_read_PORTF_FER() | port_pin);
- break;
- case 'G':
- bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() &
- ~mux_mask) | mux_func);
- bfin_write_PORTG_FER(bfin_read_PORTG_FER() | port_pin);
- break;
- case 'H':
- bfin_write_PORTH_MUX((bfin_read_PORTH_MUX() &
- ~mux_mask) | mux_func);
- bfin_write_PORTH_FER(bfin_read_PORTH_FER() | port_pin);
- break;
-#endif
- default:
- break;
- }
-}
-
-__attribute__((always_inline))
-static inline void serial_early_do_portmux(void)
-{
-#if defined(__ADSPBF50x__)
- switch (CONFIG_UART_CONSOLE) {
- case 0:
- serial_early_do_mach_portmux('G', PORT_x_MUX_7_MASK,
- PORT_x_MUX_7_FUNC_1, PG12); /* TX: G; mux 7; func 1; PG12 */
- serial_early_do_mach_portmux('G', PORT_x_MUX_7_MASK,
- PORT_x_MUX_7_FUNC_1, PG13); /* RX: G; mux 7; func 1; PG13 */
- break;
- case 1:
- serial_early_do_mach_portmux('F', PORT_x_MUX_3_MASK,
- PORT_x_MUX_3_FUNC_1, PF7); /* TX: F; mux 3; func 1; PF6 */
- serial_early_do_mach_portmux('F', PORT_x_MUX_3_MASK,
- PORT_x_MUX_3_FUNC_1, PF6); /* RX: F; mux 3; func 1; PF7 */
- break;
- }
-#elif defined(__ADSPBF51x__)
- switch (CONFIG_UART_CONSOLE) {
- case 0:
- serial_early_do_mach_portmux('G', PORT_x_MUX_5_MASK,
- PORT_x_MUX_5_FUNC_2, PG9); /* TX: G; mux 5; func 2; PG9 */
- serial_early_do_mach_portmux('G', PORT_x_MUX_5_MASK,
- PORT_x_MUX_5_FUNC_2, PG10); /* RX: G; mux 5; func 2; PG10 */
- break;
- case 1:
- serial_early_do_mach_portmux('H', PORT_x_MUX_3_MASK,
- PORT_x_MUX_3_FUNC_2, PH7); /* TX: H; mux 3; func 2; PH6 */
- serial_early_do_mach_portmux('H', PORT_x_MUX_3_MASK,
- PORT_x_MUX_3_FUNC_2, PH6); /* RX: H; mux 3; func 2; PH7 */
- break;
- }
-#elif defined(__ADSPBF52x__)
- switch (CONFIG_UART_CONSOLE) {
- case 0:
- serial_early_do_mach_portmux('G', PORT_x_MUX_2_MASK,
- PORT_x_MUX_2_FUNC_3, PG7); /* TX: G; mux 2; func 3; PG7 */
- serial_early_do_mach_portmux('G', PORT_x_MUX_2_MASK,
- PORT_x_MUX_2_FUNC_3, PG8); /* RX: G; mux 2; func 3; PG8 */
- break;
- case 1:
- serial_early_do_mach_portmux('F', PORT_x_MUX_5_MASK,
- PORT_x_MUX_5_FUNC_3, PF14); /* TX: F; mux 5; func 3; PF14 */
- serial_early_do_mach_portmux('F', PORT_x_MUX_5_MASK,
- PORT_x_MUX_5_FUNC_3, PF15); /* RX: F; mux 5; func 3; PF15 */
- break;
- }
-#elif defined(__ADSPBF537__) || defined(__ADSPBF536__) || defined(__ADSPBF534__)
- const uint16_t func[] = { PFDE, PFTE, };
- bfin_write_PORT_MUX(bfin_read_PORT_MUX() & ~func[CONFIG_UART_CONSOLE]);
- bfin_write_PORTF_FER(bfin_read_PORTF_FER() |
- (1 << P_IDENT(P_UART(RX))) |
- (1 << P_IDENT(P_UART(TX))));
-#elif defined(__ADSPBF54x__)
- switch (CONFIG_UART_CONSOLE) {
- case 0:
- serial_early_do_mach_portmux('E', PORT_x_MUX_7_MASK,
- PORT_x_MUX_7_FUNC_1, PE7); /* TX: E; mux 7; func 1; PE7 */
- serial_early_do_mach_portmux('E', PORT_x_MUX_8_MASK,
- PORT_x_MUX_8_FUNC_1, PE8); /* RX: E; mux 8; func 1; PE8 */
- break;
- case 1:
- serial_early_do_mach_portmux('H', PORT_x_MUX_0_MASK,
- PORT_x_MUX_0_FUNC_1, PH0); /* TX: H; mux 0; func 1; PH0 */
- serial_early_do_mach_portmux('H', PORT_x_MUX_1_MASK,
- PORT_x_MUX_1_FUNC_1, PH1); /* RX: H; mux 1; func 1; PH1 */
- break;
- case 2:
- serial_early_do_mach_portmux('B', PORT_x_MUX_4_MASK,
- PORT_x_MUX_4_FUNC_1, PB4); /* TX: B; mux 4; func 1; PB4 */
- serial_early_do_mach_portmux('B', PORT_x_MUX_5_MASK,
- PORT_x_MUX_5_FUNC_1, PB5); /* RX: B; mux 5; func 1; PB5 */
- break;
- case 3:
- serial_early_do_mach_portmux('B', PORT_x_MUX_6_MASK,
- PORT_x_MUX_6_FUNC_1, PB6); /* TX: B; mux 6; func 1; PB6 */
- serial_early_do_mach_portmux('B', PORT_x_MUX_7_MASK,
- PORT_x_MUX_7_FUNC_1, PB7); /* RX: B; mux 7; func 1; PB7 */
- break;
- }
-#elif defined(__ADSPBF561__)
- /* UART pins could be GPIO, but they aren't pin muxed. */
-#else
-# if (P_UART(RX) & P_DEFINED) || (P_UART(TX) & P_DEFINED)
-# error "missing portmux logic for UART"
-# endif
-#endif
- SSYNC();
-}
-
-__attribute__((always_inline))
-static inline uint32_t uart_sclk(void)
-{
-#if defined(BFIN_IN_INITCODE) || defined(CONFIG_DEBUG_EARLY_SERIAL)
- /* We cannot use get_sclk() early on as it uses
- * caches in external memory
- */
- return CONFIG_CLKIN_HZ * CONFIG_VCO_MULT / CONFIG_SCLK_DIV;
-#else
- return get_sclk();
-#endif
-}
-
-__attribute__((always_inline))
-static inline int uart_init(uint32_t uart_base)
-{
- /* always enable UART -- avoids anomalies 05000309 and 05000350 */
- bfin_write(&pUART->gctl, UCEN);
-
- /* Set LCR to Word Lengh 8-bit word select */
- bfin_write(&pUART->lcr, WLS_8);
-
- SSYNC();
-
- return 0;
-}
-
-__attribute__((always_inline))
-static inline int serial_early_init(uint32_t uart_base)
-{
- /* handle portmux crap on different Blackfins */
- serial_do_portmux();
-
- return uart_init(uart_base);
-}
-
-__attribute__((always_inline))
-static inline int serial_early_uninit(uint32_t uart_base)
-{
- /* disable the UART by clearing UCEN */
- bfin_write(&pUART->gctl, 0);
-
- return 0;
-}
-
-__attribute__((always_inline))
-static inline int serial_early_enabled(uint32_t uart_base)
-{
- return bfin_read(&pUART->gctl) & UCEN;
-}
-
-__attribute__((always_inline))
-static inline void serial_early_set_baud(uint32_t uart_base, uint32_t baud)
-{
- /* Translate from baud into divisor in terms of SCLK. The
- * weird multiplication is to make sure we over sample just
- * a little rather than under sample the incoming signals.
- */
- uint16_t divisor = (uart_sclk() + (baud * 8)) / (baud * 16) -
- ANOMALY_05000230;
-
- /* Set DLAB in LCR to Access DLL and DLH */
- ACCESS_LATCH();
- SSYNC();
-
- /* Program the divisor to get the baud rate we want */
- bfin_write(&pUART->dll, LOB(divisor));
- bfin_write(&pUART->dlh, HIB(divisor));
- SSYNC();
-
- /* Clear DLAB in LCR to Access THR RBR IER */
- ACCESS_PORT_IER();
- SSYNC();
-}
-
-__attribute__((always_inline))
-static inline void serial_early_put_div(uint16_t divisor)
-{
- uint32_t uart_base = UART_BASE;
-
- /* Set DLAB in LCR to Access DLL and DLH */
- ACCESS_LATCH();
- SSYNC();
-
- /* Program the divisor to get the baud rate we want */
- bfin_write(&pUART->dll, LOB(divisor));
- bfin_write(&pUART->dlh, HIB(divisor));
- SSYNC();
-
- /* Clear DLAB in LCR to Access THR RBR IER */
- ACCESS_PORT_IER();
- SSYNC();
-}
-
-__attribute__((always_inline))
-static inline uint16_t serial_early_get_div(void)
-{
- uint32_t uart_base = UART_BASE;
-
- /* Set DLAB in LCR to Access DLL and DLH */
- ACCESS_LATCH();
- SSYNC();
-
- uint8_t dll = bfin_read(&pUART->dll);
- uint8_t dlh = bfin_read(&pUART->dlh);
- uint16_t divisor = (dlh << 8) | dll;
-
- /* Clear DLAB in LCR to Access THR RBR IER */
- ACCESS_PORT_IER();
- SSYNC();
-
- return divisor;
-}
-
-#endif
-
-#endif
diff --git a/arch/blackfin/cpu/serial4.h b/arch/blackfin/cpu/serial4.h
deleted file mode 100644
index 887845c186..0000000000
--- a/arch/blackfin/cpu/serial4.h
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * serial.h - common serial defines for early debug and serial driver.
- * any functions defined here must be always_inline since
- * initcode cannot have function calls.
- *
- * Copyright (c) 2004-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __BFIN_CPU_SERIAL4_H__
-#define __BFIN_CPU_SERIAL4_H__
-
-#include <asm/mach-common/bits/uart4.h>
-
-#ifndef __ASSEMBLY__
-
-#define MMR_UART(n) _PASTE_UART(n, UART, REVID)
-#define UART_BASE MMR_UART(CONFIG_UART_CONSOLE)
-
-struct bfin_mmr_serial {
- u32 revid;
- u32 control;
- u32 status;
- u32 scr;
- u32 clock;
- u32 emask;
- u32 emaskst;
- u32 emaskcl;
- u32 rbr;
- u32 thr;
- u32 taip;
- u32 tsr;
- u32 rsr;
- u32 txdiv_cnt;
- u32 rxdiv_cnt;
-};
-#define uart_lsr_t uint32_t
-#define _lsr_read(p) bfin_read(&p->status)
-#define _lsr_write(p, v) bfin_write(&p->status, v)
-
-__attribute__((always_inline))
-static inline void serial_early_do_mach_portmux(char port, int mux_mask,
- int mux_func, int port_pin)
-{
- switch (port) {
- case 'D':
- bfin_write_PORTD_MUX((bfin_read_PORTD_MUX() &
- ~mux_mask) | mux_func);
- bfin_write_PORTD_FER_SET(port_pin);
- break;
- case 'G':
- bfin_write_PORTG_MUX((bfin_read_PORTG_MUX() &
- ~mux_mask) | mux_func);
- bfin_write_PORTG_FER_SET(port_pin);
- break;
- }
-}
-
-__attribute__((always_inline))
-static inline void serial_early_do_portmux(void)
-{
-#if defined(__ADSPBF60x__)
- switch (CONFIG_UART_CONSOLE) {
- case 0:
- serial_early_do_mach_portmux('D', PORT_x_MUX_7_MASK,
- PORT_x_MUX_7_FUNC_2, PD7); /* TX: D; mux 7; func 2; PD7 */
- serial_early_do_mach_portmux('D', PORT_x_MUX_8_MASK,
- PORT_x_MUX_8_FUNC_2, PD8); /* RX: D; mux 8; func 2; PD8 */
- break;
- case 1:
- serial_early_do_mach_portmux('G', PORT_x_MUX_15_MASK,
- PORT_x_MUX_15_FUNC_1, PG15); /* TX: G; mux 15; func 1; PG15 */
- serial_early_do_mach_portmux('G', PORT_x_MUX_14_MASK,
- PORT_x_MUX_14_FUNC_1, PG14); /* RX: G; mux 14; func 1; PG14 */
- break;
- }
-#else
-# if (P_UART(RX) & P_DEFINED) || (P_UART(TX) & P_DEFINED)
-# error "missing portmux logic for UART"
-# endif
-#endif
- SSYNC();
-}
-
-__attribute__((always_inline))
-static inline uint32_t uart_sclk(void)
-{
-#if defined(BFIN_IN_INITCODE) || defined(CONFIG_DEBUG_EARLY_SERIAL)
- /* We cannot use get_sclk() early on as it uses caches in
- * external memory
- */
- return CONFIG_CLKIN_HZ * CONFIG_VCO_MULT / CONFIG_SCLK_DIV /
- CONFIG_SCLK0_DIV;
-#else
- return get_sclk0();
-#endif
-}
-
-__attribute__((always_inline))
-static inline int uart_init(uint32_t uart_base)
-{
- /* always enable UART to 8-bit mode */
- bfin_write(&pUART->control, UEN | UMOD_UART | WLS_8);
-
- SSYNC();
-
- return 0;
-}
-
-__attribute__((always_inline))
-static inline int serial_early_init(uint32_t uart_base)
-{
- /* handle portmux crap on different Blackfins */
- serial_do_portmux();
-
- return uart_init(uart_base);
-}
-
-__attribute__((always_inline))
-static inline int serial_early_uninit(uint32_t uart_base)
-{
- /* disable the UART by clearing UEN */
- bfin_write(&pUART->control, 0);
-
- return 0;
-}
-
-__attribute__((always_inline))
-static inline int serial_early_enabled(uint32_t uart_base)
-{
- return bfin_read(&pUART->control) & UEN;
-}
-
-__attribute__((always_inline))
-static inline void serial_early_set_baud(uint32_t uart_base, uint32_t baud)
-{
- uint32_t divisor = uart_sclk() / (baud * 16);
-
- /* Program the divisor to get the baud rate we want */
- bfin_write(&pUART->clock, divisor);
- SSYNC();
-}
-
-__attribute__((always_inline))
-static inline void serial_early_put_div(uint32_t divisor)
-{
- uint32_t uart_base = UART_BASE;
- bfin_write(&pUART->clock, divisor);
-}
-
-__attribute__((always_inline))
-static inline uint32_t serial_early_get_div(void)
-{
- uint32_t uart_base = UART_BASE;
- return bfin_read(&pUART->clock);
-}
-
-#endif
-
-#endif
diff --git a/arch/blackfin/cpu/start.S b/arch/blackfin/cpu/start.S
index 7155fc858b..da084a87c6 100644
--- a/arch/blackfin/cpu/start.S
+++ b/arch/blackfin/cpu/start.S
@@ -32,10 +32,10 @@
#include <config.h>
#include <asm/blackfin.h>
+#include <asm/mach-common/bits/watchdog.h>
#include <asm/mach-common/bits/core.h>
#include <asm/mach-common/bits/pll.h>
-
-#include "serial.h"
+#include <asm/serial.h>
/* It may seem odd that we make calls to functions even though we haven't
* relocated ourselves yet out of {flash,ram,wherever}. This is OK because
@@ -65,20 +65,29 @@ ENTRY(_start)
p5.h = HI(COREMMR_BASE);
#ifdef CONFIG_HW_WATCHDOG
-#ifndef __ADSPBF60x__
-# ifndef CONFIG_HW_WATCHDOG_TIMEOUT_START
-# define CONFIG_HW_WATCHDOG_TIMEOUT_START 5000
-# endif
- /* Program the watchdog with an initial timeout of ~5 seconds.
+ /* Program the watchdog with default timeout of ~5 seconds.
* That should be long enough to bootstrap ourselves up and
* then the common u-boot code can take over.
*/
+ r1 = WDDIS;
+# ifdef __ADSPBF60x__
+ [p4 + (WDOG_CTL - SYSMMR_BASE)] = r1;
+# else
+ W[p4 + (WDOG_CTL - SYSMMR_BASE)] = r1;
+# endif
+ SSYNC;
r0 = 0;
- r0.h = HI(MSEC_TO_SCLK(CONFIG_HW_WATCHDOG_TIMEOUT_START));
+ r0.h = HI(MSEC_TO_SCLK(CONFIG_WATCHDOG_TIMEOUT_MSECS));
[p4 + (WDOG_CNT - SYSMMR_BASE)] = r0;
+ SSYNC;
+ r1 = WDEN;
/* fire up the watchdog - R0.L above needs to be 0x0000 */
- W[p4 + (WDOG_CTL - SYSMMR_BASE)] = r0;
-#endif
+# ifdef __ADSPBF60x__
+ [p4 + (WDOG_CTL - SYSMMR_BASE)] = r1;
+# else
+ W[p4 + (WDOG_CTL - SYSMMR_BASE)] = r1;
+# endif
+ SSYNC;
#endif
/* Turn on the serial for debugging the init process */
diff --git a/arch/blackfin/cpu/watchdog.c b/arch/blackfin/cpu/watchdog.c
deleted file mode 100644
index 1886bda0ae..0000000000
--- a/arch/blackfin/cpu/watchdog.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * watchdog.c - driver for Blackfin on-chip watchdog
- *
- * Copyright (c) 2007-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <common.h>
-#include <watchdog.h>
-#include <asm/blackfin.h>
-
-void hw_watchdog_reset(void)
-{
- bfin_write_WDOG_STAT(0);
-}
-
-void hw_watchdog_init(void)
-{
- bfin_write_WDOG_CNT(5 * get_sclk()); /* 5 second timeout */
- hw_watchdog_reset();
- bfin_write_WDOG_CTL(0x0);
-}
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-06 19:32:17 +0000