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ARM: atmel: sama5d4: add bus matrix init function

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Signed-off-by: Bo Shen <voice.shen@atmel.com>
This commit is contained in:
Bo Shen 2014-12-15 13:24:34 +08:00 committed by Andreas Bießmann
parent 5c756bbc9d
commit 09f5c9745b
1 changed files with 35 additions and 0 deletions
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35
arch/arm/cpu/armv7/at91/sama5d4_devices.c
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@ -10,6 +10,7 @@
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/clk.h>
#include <asm/arch/sama5_matrix.h>
#include <asm/arch/sama5d4.h>
char *get_cpu_name()
@ -44,3 +45,37 @@ void at91_udp_hw_init(void)
at91_periph_clk_enable(ATMEL_ID_UDPHS);
}
#endif
#ifdef CONFIG_SPL_BUILD
void matrix_init(void)
{
struct atmel_matrix *h64mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX0;
struct atmel_matrix *h32mx = (struct atmel_matrix *)ATMEL_BASE_MATRIX1;
int i;
/* Disable the write protect */
writel(ATMEL_MATRIX_WPMR_WPKEY & ~ATMEL_MATRIX_WPMR_WPEN, &h64mx->wpmr);
writel(ATMEL_MATRIX_WPMR_WPKEY & ~ATMEL_MATRIX_WPMR_WPEN, &h32mx->wpmr);
/* DDR port 1 ~ poart 7, slave number is: 4 ~ 10 */
for (i = 4; i <= 10; i++) {
writel(0x000f0f0f, &h64mx->ssr[i]);
writel(0x0000ffff, &h64mx->sassr[i]);
writel(0x0000000f, &h64mx->srtsr[i]);
}
/* CS3 */
writel(0x00c0c0c0, &h32mx->ssr[3]);
writel(0xff000000, &h32mx->sassr[3]);
writel(0xff000000, &h32mx->srtsr[3]);
/* NFC SRAM */
writel(0x00010101, &h32mx->ssr[4]);
writel(0x00000001, &h32mx->sassr[4]);
writel(0x00000001, &h32mx->srtsr[4]);
/* Enable the write protect */
writel(ATMEL_MATRIX_WPMR_WPKEY | ATMEL_MATRIX_WPMR_WPEN, &h64mx->wpmr);
writel(ATMEL_MATRIX_WPMR_WPKEY | ATMEL_MATRIX_WPMR_WPEN, &h32mx->wpmr);
}
#endif