brain-hackers_pepepper-mirror/u-boot-brain
1
0
Fork 0
mirror of https://github.com/brain-hackers/u-boot-brain synced 2024-06-09 23:36:03 +09:00
Code Issues Projects Releases Wiki Activity

arm: imx: imx8mm: correct unrecognized fracpll frequency

Browse Source 
Frequency requested by ddrphy_init_set_dfi_clk from fracpll uses MHZ()
macro, which expands the value provided to the Hz range without taking into
account the precise Hz setting. This causes the frequency of 266 MHz not ot
be found in the imx8mm_fracpll_tbl, since it is entered there with a
precise Hz value. This in turn causes the boot hang in SPL, as proper DDR
fracpll frequency cannot be determined.

Correct the value in imx8mm_fracpll_tbl to match the one expanded by
MHZ(266) macro, rounding it down to MHz range only.

Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: "NXP i.MX U-Boot Team" <uboot-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Ye Li <ye.li@nxp.com>
Fixes: 825ab6b406 ("driver: ddr: Refine the ddr init driver on imx8m")
This commit is contained in:
Andrey Zhizhikin 2021-05-01 21:36:13 +02:00 committed by Otavio Salvador
parent 13de33cc12
commit b047e1dcd2
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/arm/mach-imx/imx8m/clock_imx8mm.c
View File

@ -54,7 +54,7 @@ static struct imx_int_pll_rate_table imx8mm_fracpll_tbl[] = {
PLL_1443X_RATE(600000000U, 300, 3, 2, 0),
PLL_1443X_RATE(594000000U, 99, 1, 2, 0),
PLL_1443X_RATE(400000000U, 300, 9, 1, 0),
PLL_1443X_RATE(266666667U, 400, 9, 2, 0),
PLL_1443X_RATE(266000000U, 400, 9, 2, 0),
PLL_1443X_RATE(167000000U, 334, 3, 4, 0),
PLL_1443X_RATE(100000000U, 300, 9, 3, 0),
};
@ -72,7 +72,7 @@ static int fracpll_configure(enum pll_clocks pll, u32 freq)
}
if (i == ARRAY_SIZE(imx8mm_fracpll_tbl)) {
printf("No matched freq table %u\n", freq);
printf("%s: No matched freq table %u\n", __func__, freq);
return -EINVAL;
}
@ -148,7 +148,7 @@ void dram_enable_bypass(ulong clk_val)
}
if (i == ARRAY_SIZE(imx8mm_dram_bypass_tbl)) {
printf("No matched freq table %lu\n", clk_val);
printf("%s: No matched freq table %lu\n", __func__, clk_val);
return;
}