From: Fabio Estevam <feste...@gmail.com>
Currently only the module with 256MB of RAM is supported.
Add support for the 512MB of RAM variant as well.
Signed-off-by: Fabio Estevam <feste...@gmail.com>
Signed-off-by: Fabio Berton <fabio.ber...@ossystems.com.br>
Signed-off-by: Otavio Salvador <ota...@ossystems.com.br>
---
board/technexion/pico-imx6ul/spl.c | 27 ++++++++++++++++++++++++---
1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/board/technexion/pico-imx6ul/spl.c
b/board/technexion/pico-imx6ul/spl.c
index 6989c81946..428d3b10fb 100644
--- a/board/technexion/pico-imx6ul/spl.c
+++ b/board/technexion/pico-imx6ul/spl.c
@@ -69,7 +69,6 @@ static struct mx6_ddr3_cfg mem_ddr = {
.density = 2,
.width = 16,
.banks = 8,
- .rowaddr = 14,
.coladdr = 10,
.pagesz = 2,
.trcd = 1350,
@@ -91,12 +90,34 @@ static void ccgr_init(void)
writel(0xFFFFFFFF, &ccm->CCGR7);
}
-static void spl_dram_init(void)
+static void imx6ul_spl_dram_cfg_size(u32 ram_size)
{
+ if (ram_size == SZ_256M)
+ mem_ddr.rowaddr = 14;
+ else
+ mem_ddr.rowaddr = 15;
+
mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
}
+static void imx6ul_spl_dram_cfg(void)
+{
+ ulong ram_size_test, ram_size = 0;
+
+ for (ram_size = SZ_512M; ram_size >= SZ_256M; ram_size >>= 1) {
+ imx6ul_spl_dram_cfg_size(ram_size);
+ ram_size_test = get_ram_size((long int *)PHYS_SDRAM, ram_size);
+ if (ram_size_test == ram_size)
+ break;
+ }
+
+ if (ram_size < SZ_256M) {
+ puts("ERROR: DRAM size detection failed\n");
+ hang();
+ }
+}
+
void board_init_f(ulong dummy)
{
ccgr_init();
@@ -104,7 +125,7 @@ void board_init_f(ulong dummy)
board_early_init_f();
timer_init();
preloader_console_init();
- spl_dram_init();
+ imx6ul_spl_dram_cfg();
memset(__bss_start, 0, __bss_end - __bss_start);
board_init_r(NULL, 0);
}
--
2.18.0
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