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Commit b4c0a8a7 authored by Vaibhav Bedia's avatar Vaibhav Bedia Committed by Tony Lindgren
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ARM: OMAP: sram: Add am33xx SRAM support (minimal) 



Update SRAM start & size for am33xx SoC's.

Note: cpu_is_34xx() is true for am33xx also. Doing
cpu_is_am33xx() check after cpu_is_34xx() will not
achieve what we want due to the above reason.
Hence cpu_is_am33xx() is done before cpu_is_34xx()

Signed-off-by: default avatarVaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: default avatarAfzal Mohammed <afzal@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent fb3cfb1f

arch/arm/plat-omap/include/plat/sram.h

+1 −0
Original line number Diff line number Diff line
@@ -101,4 +101,5 @@ static inline void omap_push_sram_idle(void) {} 
#else

#define OMAP4_SRAM_PA		0x40300000

#endif

#define AM33XX_SRAM_PA		0x40300000

#endif

arch/arm/plat-omap/sram.c

+12 −2
Original line number Diff line number Diff line
@@ -86,7 +86,7 @@ static int is_sram_locked(void) 
			__raw_writel(0xCFDE, OMAP24XX_VA_READPERM0);  /* all i-read */

			__raw_writel(0xCFDE, OMAP24XX_VA_WRITEPERM0); /* all i-write */

		}

		if (cpu_is_omap34xx()) {

		if (cpu_is_omap34xx() && !cpu_is_am33xx()) {

			__raw_writel(0xFFFF, OMAP34XX_VA_REQINFOPERM0); /* all q-vects */

			__raw_writel(0xFFFF, OMAP34XX_VA_READPERM0);  /* all i-read */

			__raw_writel(0xFFFF, OMAP34XX_VA_WRITEPERM0); /* all i-write */
@@ -124,7 +124,10 @@ static void __init omap_detect_sram(void) 
				omap_sram_size = 0x800; /* 2K */

			}

		} else {

			if (cpu_is_omap34xx()) {

			if (cpu_is_am33xx()) {

				omap_sram_start = AM33XX_SRAM_PA;

				omap_sram_size = 0x10000; /* 64K */

			} else if (cpu_is_omap34xx()) {

				omap_sram_start = OMAP3_SRAM_PA;

				omap_sram_size = 0x10000; /* 64K */

			} else if (cpu_is_omap44xx()) {
@@ -368,6 +371,11 @@ static inline int omap34xx_sram_init(void) 
	return 0;

}



static inline int am33xx_sram_init(void)

{

	return 0;

}



int __init omap_sram_init(void)

{

	omap_detect_sram();
@@ -379,6 +387,8 @@ int __init omap_sram_init(void) 
		omap242x_sram_init();

	else if (cpu_is_omap2430())

		omap243x_sram_init();

	else if (cpu_is_am33xx())

		am33xx_sram_init();

	else if (cpu_is_omap34xx())

		omap34xx_sram_init();