bd96a84300
Change-Id: Idc165f8eafacf3130a29b701bc3610c1a67f69d5 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32855 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jacob Garber <jgarber1@ualberta.ca>
41 lines
764 B
C
41 lines
764 B
C
static void spd_set_memclk(void)
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{
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static const int indices[] = { 26, 23, 9 };
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int new_cycle_time, new_latency;
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int index;
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unsigned min_cycle_time, min_latency;
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unsigned device;
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min_cycle_time = 0x50;
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min_latency = 2;
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device = 0x50;
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new_cycle_time = 0xa0;
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new_latency = 5;
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for(index = 0; index < 3; index++) {
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unsigned long loops;
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unsigned long address;
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address = indices[index];
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loops = 1000000;
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do {
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} while(--loops);
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if (loops < 0) {
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continue;
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}
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__builtin_outb(device, 0x10e4);
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__builtin_outb(address, 0x10e8);
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loops = 1000000;
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if ((loops?0:-1) < 0) {
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continue;
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}
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}
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if (new_cycle_time > min_cycle_time) {
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min_cycle_time = new_cycle_time;
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}
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if (new_latency > min_latency) {
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min_latency = new_latency;
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}
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}
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