From 5f723a3b98c630bde33de74351f2121691fdef14 Mon Sep 17 00:00:00 2001
From: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Date: Fri, 20 Jun 2008 10:41:05 +0200
Subject: [PATCH] avr32: Enable SPI flash support on ATNGW100
The ATNGW100 has 8MB DataFlash on board. Give users access to it through
the new SPI flash framework.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
---
board/atmel/atngw100/atngw100.c | 25 +++++++++++++++++++++++++
include/configs/atngw100.h | 6 ++++++
2 files changed, 31 insertions(+)
diff --git a/board/atmel/atngw100/atngw100.c b/board/atmel/atngw100/atngw100.c
index 375f0e7e17..f2c3e79799 100644
--- a/board/atmel/atngw100/atngw100.c
+++ b/board/atmel/atngw100/atngw100.c
@@ -60,6 +60,9 @@ int board_early_init_f(void)
#if defined(CONFIG_MMC)
gpio_enable_mmci();
#endif
+#if defined(CONFIG_ATMEL_SPI)
+ gpio_enable_spi0(1 << 0);
+#endif
return 0;
}
@@ -89,3 +92,25 @@ void board_init_info(void)
gd->bd->bi_phy_id[0] = 0x01;
gd->bd->bi_phy_id[1] = 0x03;
}
+
+/* SPI chip select control */
+#ifdef CONFIG_ATMEL_SPI
+#include <spi.h>
+
+#define ATNGW100_DATAFLASH_CS_PIN GPIO_PIN_PA3
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+ return bus == 0 && cs == 0;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+ gpio_set_value(ATNGW100_DATAFLASH_CS_PIN, 0);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+ gpio_set_value(ATNGW100_DATAFLASH_CS_PIN, 1);
+}
+#endif /* CONFIG_ATMEL_SPI */
diff --git a/include/configs/atngw100.h b/include/configs/atngw100.h
index 3fc9975637..7ac51b543c 100644
--- a/include/configs/atngw100.h
+++ b/include/configs/atngw100.h
@@ -114,6 +114,8 @@
#define CONFIG_CMD_FAT
#define CONFIG_CMD_JFFS2
#define CONFIG_CMD_MMC
+#define CONFIG_CMD_SF
+#define CONFIG_CMD_SPI
#undef CONFIG_CMD_AUTOSCRIPT
#undef CONFIG_CMD_FPGA
@@ -126,6 +128,10 @@
#define CFG_NR_PIOS 5
#define CFG_HSDRAMC 1
#define CONFIG_MMC 1
+#define CONFIG_ATMEL_SPI 1
+
+#define CONFIG_SPI_FLASH 1
+#define CONFIG_SPI_FLASH_ATMEL 1
#define CFG_DCACHE_LINESZ 32
#define CFG_ICACHE_LINESZ 32
--
2.39.5