summaryrefslogtreecommitdiff
path: root/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c
diff options
context:
space:
mode:
authorWolfgang Denk <wd@denx.de>2011-08-04 23:05:07 +0200
committerWolfgang Denk <wd@denx.de>2011-08-04 23:05:07 +0200
commitfb6440ee9b110b759ef61fd80bbd0df1bbf0f37b (patch)
treedbde38784fb8b48c7f9b14e70a947fab3a1f3bab /arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c
parent01b0f50060923e89693bf155c677e4f665916b3f (diff)
parentb608b95753873a5073f550cca002c4bebf1a18f5 (diff)
downloadu-boot-imx-fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b.zip
u-boot-imx-fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b.tar.gz
u-boot-imx-fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b.tar.bz2
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm: drivers/rtc: add Marvell Integrated RTC Armada100: Add Board Support for Marvell GuruPlug-Display Armada100: MFP macro naming correction arm: auto gen asm-offsets.h for mb86r0x spear: fix build errors for spear3xx/spear600 platforms cosmetic: arm: lib/board.c: Coding Style cleanup ARM: versatile: fix board support SMDKV310: Enable device tree support SMDKV310: MMC_SPL: Fix building when using "make O=" arm: a320: enable tagged list support arm: a320: fix multiline comment style ARMv7: u8500_href: Add missing header to fix compiler warning Removed unused define, CONFIG_ARMV7. avr32: add grasshopper (ICnova AP7000) board AT91/SPI: fix atmel_dataflash_spi.c to allow building without warnings MAKEALL: remove AT91 boards that are in boards.cfg AT91: Makes AT91SAM9263-EK build correctly against u-boot-atmel/master AT91: Makes AT91SAM9263 SoC build correctly against u-boot-atmel/master AT91: Board fix for AT91SAM9261-EK AT91: SoC fix at91sam9261_matrix.h AT91: Makes AT91SAM9RL-EK build correctly against u-boot-atmel/master AT91: Makes AT91SAM9RL SoC build correctly against u-boot-atmel/master AT91: change common at91sam9261 files to compile with new scheme AT91: fix mistake in at91sam9260_devices.c(spi1_hw_init) a/a/c/arm920t/at91/reset.c: drop obsolete CONFIG_AT91RM9200_USART README: fix arm920t/at91 path net/eth.c: drop obsolete at91rm9200 support README.at91-soc: remove AT91(RM9200) joining notice a/a/c/arm920t/cpu.c: remove CONFIG_AT91_LEGACY warning MAKEALL: remove obsolete at91rm9200 soc ARM: remove obsolete at91rm9200 omap4: clock init support for omap4460 omap4: support TPS programming omap: reuse omap3 gpio support in omap4 omap4: sdram init changes for omap4460 omap4: add omap4460 revision detection mkimage: Add OMAP boot image support omap: add MMC and FAT support to SPL omap: add basic SPL support armv7: start.S: fixes and enhancements for SPL omap4: automatic sdram detection omap4: calculate EMIF register values omap4: add sdram init support omap4: add clock support omap4: add OMAP4430 revision check omap4: cleanup pin mux data omap4: utility function to identify the context of hw init DA8xx: fix LPSC constants DA8xx: switch an enum to defines for consistency DA8xx: add MMC/SD controller addresses DaVinci EMAC: declare function for all DA8xx CPUs DA8xx: add generic GPIO driver DaVinci: rename gpio_defs.h to gpio.h omap3evm: eth: Include functions only when necessary omap3evm: Update ethernet reset sequence for Rev.G board omap3evm: eth: split function setup_net_chip omap3: Include array definition only when it is used omap730p2: fix build breaks omap2420h4: fix build breaks omap1610inn: fix build breaks omap1510inn: fix build breaks omap5912osk: fix build breaks omap1610h2: fix build breaks
Diffstat (limited to 'arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c')
-rw-r--r--arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c38
1 files changed, 26 insertions, 12 deletions
diff --git a/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c b/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c
index 15e880a..6eb0f30 100644
--- a/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c
+++ b/arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c
@@ -28,17 +28,31 @@
#include <common.h>
#include <asm/io.h>
-#include <asm/arch/hardware.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
-#include <asm/arch/at91_pio.h>
+#include <asm/arch/gpio.h>
+
+/*
+ * if CONFIG_AT91_GPIO_PULLUP ist set, keep pullups on on all
+ * peripheral pins. Good to have if hardware is soldered optionally
+ * or in case of SPI no slave is selected. Avoid lines to float
+ * needlessly. Use a short local PUP define.
+ *
+ * Due to errata "TXD floats when CTS is inactive" pullups are always
+ * on for TXD pins.
+ */
+#ifdef CONFIG_AT91_GPIO_PULLUP
+# define PUP CONFIG_AT91_GPIO_PULLUP
+#else
+# define PUP 0
+#endif
void at91_serial0_hw_init(void)
{
at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
at91_set_a_periph(AT91_PIO_PORTA, 26, 1); /* TXD0 */
- at91_set_a_periph(AT91_PIO_PORTA, 27, 0); /* RXD0 */
+ at91_set_a_periph(AT91_PIO_PORTA, 27, PUP); /* RXD0 */
writel(1 << ATMEL_ID_USART0, &pmc->pcer);
}
@@ -47,7 +61,7 @@ void at91_serial1_hw_init(void)
at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
at91_set_a_periph(AT91_PIO_PORTD, 0, 1); /* TXD1 */
- at91_set_a_periph(AT91_PIO_PORTD, 1, 0); /* RXD1 */
+ at91_set_a_periph(AT91_PIO_PORTD, 1, PUP); /* RXD1 */
writel(1 << ATMEL_ID_USART1, &pmc->pcer);
}
@@ -56,7 +70,7 @@ void at91_serial2_hw_init(void)
at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
at91_set_a_periph(AT91_PIO_PORTD, 2, 1); /* TXD2 */
- at91_set_a_periph(AT91_PIO_PORTD, 3, 0); /* RXD2 */
+ at91_set_a_periph(AT91_PIO_PORTD, 3, PUP); /* RXD2 */
writel(1 << ATMEL_ID_USART2, &pmc->pcer);
}
@@ -64,7 +78,7 @@ void at91_seriald_hw_init(void)
{
at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
- at91_set_a_periph(AT91_PIO_PORTC, 30, 0); /* DRXD */
+ at91_set_a_periph(AT91_PIO_PORTC, 30, PUP); /* DRXD */
at91_set_a_periph(AT91_PIO_PORTC, 31, 1); /* DTXD */
writel(1 << ATMEL_ID_SYS, &pmc->pcer);
}
@@ -74,9 +88,9 @@ void at91_spi0_hw_init(unsigned long cs_mask)
{
at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
- at91_set_b_periph(AT91_PIO_PORTA, 0, 0); /* SPI0_MISO */
- at91_set_b_periph(AT91_PIO_PORTA, 1, 0); /* SPI0_MOSI */
- at91_set_b_periph(AT91_PIO_PORTA, 2, 0); /* SPI0_SPCK */
+ at91_set_b_periph(AT91_PIO_PORTA, 0, PUP); /* SPI0_MISO */
+ at91_set_b_periph(AT91_PIO_PORTA, 1, PUP); /* SPI0_MOSI */
+ at91_set_b_periph(AT91_PIO_PORTA, 2, PUP); /* SPI0_SPCK */
/* Enable clock */
writel(1 << ATMEL_ID_SPI0, &pmc->pcer);
@@ -111,9 +125,9 @@ void at91_spi1_hw_init(unsigned long cs_mask)
{
at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
- at91_set_a_periph(AT91_PIO_PORTB, 12, 0); /* SPI1_MISO */
- at91_set_a_periph(AT91_PIO_PORTB, 13, 0); /* SPI1_MOSI */
- at91_set_a_periph(AT91_PIO_PORTB, 14, 0); /* SPI1_SPCK */
+ at91_set_a_periph(AT91_PIO_PORTB, 12, PUP); /* SPI1_MISO */
+ at91_set_a_periph(AT91_PIO_PORTB, 13, PUP); /* SPI1_MOSI */
+ at91_set_a_periph(AT91_PIO_PORTB, 14, PUP); /* SPI1_SPCK */
/* Enable clock */
writel(1 << ATMEL_ID_SPI1, &pmc->pcer);