[rtems commit] bsp/lpc32xx: Add lpc32xx_select_nand_controller()
Sebastian Huber
sebh at rtems.org
Mon Aug 20 08:08:29 UTC 2012
Module: rtems
Branch: master
Commit: 6cfe52fcbcc128e98cef9312b52f9fe8fcd54d5b
Changeset: http://git.rtems.org/rtems/commit/?id=6cfe52fcbcc128e98cef9312b52f9fe8fcd54d5b
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Wed Jul 25 15:51:21 2012 +0200
bsp/lpc32xx: Add lpc32xx_select_nand_controller()
---
c/src/lib/libbsp/arm/lpc32xx/Makefile.am | 1 +
c/src/lib/libbsp/arm/lpc32xx/include/bsp.h | 8 ++++
c/src/lib/libbsp/arm/lpc32xx/misc/nand-select.c | 44 +++++++++++++++++++++++
3 files changed, 53 insertions(+), 0 deletions(-)
diff --git a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
index 6cfcf89..09c385d 100644
--- a/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
+++ b/c/src/lib/libbsp/arm/lpc32xx/Makefile.am
@@ -136,6 +136,7 @@ libbsp_a_SOURCES += misc/nand-mlc-write-blocks.c
libbsp_a_SOURCES += misc/restart.c
libbsp_a_SOURCES += misc/system-clocks.c
libbsp_a_SOURCES += misc/timer.c
+libbsp_a_SOURCES += misc/nand-select.c
# SSP
diff --git a/c/src/lib/libbsp/arm/lpc32xx/include/bsp.h b/c/src/lib/libbsp/arm/lpc32xx/include/bsp.h
index 74627ae..c1fcec3 100644
--- a/c/src/lib/libbsp/arm/lpc32xx/include/bsp.h
+++ b/c/src/lib/libbsp/arm/lpc32xx/include/bsp.h
@@ -138,6 +138,14 @@ uint32_t lpc32xx_arm_clk(void);
uint32_t lpc32xx_dram_clk(void);
+typedef enum {
+ LPC32XX_NAND_CONTROLLER_NONE,
+ LPC32XX_NAND_CONTROLLER_MLC,
+ LPC32XX_NAND_CONTROLLER_SLC
+} lpc32xx_nand_controller;
+
+void lpc32xx_select_nand_controller(lpc32xx_nand_controller nand_controller);
+
void bsp_restart(void *addr);
#define BSP_CONSOLE_UART_BASE LPC32XX_BASE_UART_5
diff --git a/c/src/lib/libbsp/arm/lpc32xx/misc/nand-select.c b/c/src/lib/libbsp/arm/lpc32xx/misc/nand-select.c
new file mode 100644
index 0000000..533680e
--- /dev/null
+++ b/c/src/lib/libbsp/arm/lpc32xx/misc/nand-select.c
@@ -0,0 +1,44 @@
+/**
+ * @file
+ *
+ * @ingroup lpc32xx
+ *
+ * @brief NAND controller selection.
+ */
+
+/*
+ * Copyright (c) 2012 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 82178 Puchheim
+ * Germany
+ * <rtems at embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/lpc32xx.h>
+#include <bsp/nand-mlc.h>
+
+void lpc32xx_select_nand_controller(lpc32xx_nand_controller nand_controller)
+{
+ uint32_t flashclk_ctrl = LPC32XX_FLASHCLK_CTRL & ~(FLASHCLK_IRQ_MLC
+ | FLASHCLK_SELECT_SLC | FLASHCLK_MLC_CLK_ENABLE | FLASHCLK_SLC_CLK_ENABLE);
+
+ switch (nand_controller) {
+ case LPC32XX_NAND_CONTROLLER_MLC:
+ flashclk_ctrl |= FLASHCLK_IRQ_MLC | FLASHCLK_MLC_CLK_ENABLE;
+ break;
+ case LPC32XX_NAND_CONTROLLER_SLC:
+ flashclk_ctrl |= FLASHCLK_SELECT_SLC | FLASHCLK_SLC_CLK_ENABLE;
+ break;
+ default:
+ break;
+ }
+
+ LPC32XX_FLASHCLK_CTRL = flashclk_ctrl;
+}
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