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Add SMC configuration

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2618 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2010-04-19 03:13:51 +00:00
parent 933cec7399
commit 734fcb88a5
2 changed files with 59 additions and 15 deletions
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configs/sam3u-ek/src/up_lcd.c
+29
View File
@@ -120,7 +120,11 @@
#include <nuttx/arch.h>
#include <nuttx/lcd.h>
#include <arch/irq.h>
#include "up_arch.h"
#include "sam3u_pmc.h"
#include "sam3u_smc.h"
#include "sam3u_internal.h"
#include "sam3uek_internal.h"
@@ -409,6 +413,8 @@ static int sam3u_setcontrast(struct lcd_dev_s *dev, unsigned int contrast)
int up_lcdinitialize(void)
{
uint32_t regval;
/* Enable LCD EXTCS2 pins */
sam3u_configgpio(GPIO_LCD_NCS2);
@@ -436,6 +442,29 @@ int up_lcdinitialize(void)
/* Configure LCD Backlight Pin */
sam3u_configgpio(GPIO_LCD_D15);
/* Enable SMC peripheral clock */
putreg32((1 << SAM3U_PID_SMC), SAM3U_PMC_PCER);
/* Configure SMC CS2 */
regval = (4 << SMCCS_SETUP_NWESETUP_SHIFT) | (2 << SMCCS_SETUP_NCSWRSETUP_SHIFT) |
(4 << SMCCS_SETUP_NRDSETUP_SHIFT) | (2 << SMCCS_SETUP_NCSRDSETUP_SHIFT);
putreg32(regval, SAM3U_SMCCS_SETUP(2));
regval = (5 << SMCCS_PULSE_NWEPULSE_SHIFT) | (18 << SMCCS_PULSE_NCSWRPULSE_SHIFT) |
(5 << SMCCS_PULSE_RDPULSE_SHIFT) | (18 << SMCCS_PULSE_NCSRDPULSE_SHIFT);
putreg32(regval, SAM3U_SMCCS_PULSE(2));
regval = (22 << SMCCS_CYCLE_NWECYCLE_SHIFT) | (22 << SMCCS_CYCLE_NRDCYCLE_SHIFT);
putreg32(regval, SAM3U_SMCCS_CYCLE(2));
regval = getreg32(SAM3U_SMCCS_MODE(2));
regval &= ~(SMCCS_MODE_DBW_MASK | SMCCS_MODE_PMEN);
regval |= (SMCCS_MODE_READMODE) | (SMCCS_MODE_WRITEMODE) | (SMCCS_MODE_DBW_16BITS);
putreg32(regval, SAM3U_SMCCS_MODE(2));
return -ENOSYS;
}