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armv8: cavium: Get DRAM size from ATF

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Change the dram_init() function on ThunderX to query ATF services for
the real installed DRAM size

Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com>
Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
This commit is contained in:
Sergey Temerkhanov 2015-10-14 09:55:52 -07:00 • committed by Tom Rini
parent 900f88f3b0
commit 3ed2ece5e1
1 changed files with 27 additions and 0 deletions
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27
board/cavium/thunderx/thunderx.c
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@ -9,6 +9,8 @@
#include <errno.h> #include <errno.h>
#include <linux/compiler.h> #include <linux/compiler.h>
#include <cavium/atf.h>
#if !CONFIG_IS_ENABLED(OF_CONTROL) #if !CONFIG_IS_ENABLED(OF_CONTROL)
#include <dm/platdata.h> #include <dm/platdata.h>
#include <dm/platform_data/serial_pl01x.h> #include <dm/platform_data/serial_pl01x.h>
@ -50,6 +52,31 @@ int timer_init(void)
return 0; return 0;
} }
int dram_init(void)
{
ssize_t node_count = atf_node_count();
ssize_t dram_size;
int node;
printf("Initializing\nNodes in system: %zd\n", node_count);
gd->ram_size = 0;
for (node = 0; node < node_count; node++) {
dram_size = atf_dram_size(node);
printf("Node %d: %zd MBytes of DRAM\n", node, dram_size >> 20);
gd->ram_size += dram_size;
}
gd->ram_size -= MEM_BASE;
*(unsigned long *)CPU_RELEASE_ADDR = 0;
puts("DRAM size:");
return 0;
}
/* /*
* Board specific reset that is system reset. * Board specific reset that is system reset.
*/ */