/* Tegra SoC common clock control functions */
#include <common.h>
+#include <errno.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/tegra.h>
#include <asm/arch-tegra/ap.h>
#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
#include <asm/arch-tegra/timer.h>
#include <div64.h>
#include <fdtdec.h>
assert(clock_id_is_pll(clkid));
if (clkid >= (enum clock_id)TEGRA_CLK_PLLS) {
- debug("%s: Invalid PLL\n", __func__);
+ debug("%s: Invalid PLL %d\n", __func__, clkid);
return NULL;
}
return &clkrst->crc_pll[clkid];
unsigned long clock_start_pll(enum clock_id clkid, u32 divm, u32 divn,
u32 divp, u32 cpcon, u32 lfcon)
{
- struct clk_pll *pll = get_pll(clkid);
+ struct clk_pll *pll = NULL;
u32 misc_data, data;
+ if (clkid < (enum clock_id)TEGRA_CLK_PLLS)
+ pll = get_pll(clkid);
+
/*
* We cheat by treating all PLL (except PLLU) in the same fashion.
* This works only because:
pll_rate[CLOCK_ID_MEMORY] = clock_get_rate(CLOCK_ID_MEMORY);
pll_rate[CLOCK_ID_PERIPH] = clock_get_rate(CLOCK_ID_PERIPH);
pll_rate[CLOCK_ID_CGENERAL] = clock_get_rate(CLOCK_ID_CGENERAL);
+ pll_rate[CLOCK_ID_DISPLAY] = clock_get_rate(CLOCK_ID_DISPLAY);
pll_rate[CLOCK_ID_OSC] = clock_get_rate(CLOCK_ID_OSC);
pll_rate[CLOCK_ID_SFROM32KHZ] = 32768;
pll_rate[CLOCK_ID_XCPU] = clock_get_rate(CLOCK_ID_XCPU);
debug("PLLM = %d\n", pll_rate[CLOCK_ID_MEMORY]);
debug("PLLP = %d\n", pll_rate[CLOCK_ID_PERIPH]);
debug("PLLC = %d\n", pll_rate[CLOCK_ID_CGENERAL]);
+ debug("PLLD = %d\n", pll_rate[CLOCK_ID_DISPLAY]);
debug("PLLX = %d\n", pll_rate[CLOCK_ID_XCPU]);
/* Do any special system timer/TSC setup */
set_avp_clock_source(SCLK_SOURCE_PLLP_OUT4);
}
+
+int clock_external_output(int clk_id)
+{
+ struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+
+ if (clk_id >= 1 && clk_id <= 3) {
+ setbits_le32(&pmc->pmc_clk_out_cntrl,
+ 1 << (2 + (clk_id - 1) * 8));
+ } else {
+ printf("%s: Unknown output clock id %d\n", __func__, clk_id);
+ return -EINVAL;
+ }
+
+ return 0;
+}