GitHub-Mirror/u-boot
2
0
Fork 0
mirror of https://github.com/Fishwaldo/u-boot.git synced 2025-03-21 14:41:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

arm: at91: at91sam9m10g45ek/corvus remove useless chip select 1 init

Browse source 
On these boards the DDR is connected to a dedicated controller and not
to chip select 1 of the EBI.

Signed-off-by: Erik van Luijk <evanluijk@interact.nl>
Tested-by: Erik van Luijk <evanluijk@interact.nl>
This commit is contained in:
Erik van Luijk 2015-08-13 15:43:19 +02:00 • committed by Andreas Bießmann
parent 0c01c3e876
commit 6560491fe5
2 changed files with 0 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
board/atmel/at91sam9m10g45ek/at91sam9m10g45ek.c
View file

@ -131,21 +131,13 @@ static void ddr2_conf(struct atmel_mpddr *ddr2)
void mem_init(void)
{
struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX;
struct atmel_mpddr ddr2;
unsigned long csa;
ddr2_conf(&ddr2);
/* enable DDR2 clock */
writel(0x4, &pmc->scer);
/* Chip select 1 is for DDR2/SDRAM */
csa = readl(&mat->ebicsa);
csa |= AT91_MATRIX_EBI_CS1A_SDRAMC;
csa &= ~AT91_MATRIX_EBI_VDDIOMSEL_3_3V;
writel(csa, &mat->ebicsa);
/* DDRAM2 Controller initialize */
ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2);
}

8
board/siemens/corvus/board.c
View file

@ -144,21 +144,13 @@ static void ddr2_conf(struct atmel_mpddr *ddr2)
void mem_init(void)
{
struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX;
struct atmel_mpddr ddr2;
unsigned long csa;
ddr2_conf(&ddr2);
/* enable DDR2 clock */
writel(0x4, &pmc->scer);
/* Chip select 1 is for DDR2/SDRAM */
csa = readl(&mat->ebicsa);
csa |= AT91_MATRIX_EBI_CS1A_SDRAMC;
csa &= ~AT91_MATRIX_EBI_VDDIOMSEL_3_3V;
writel(csa, &mat->ebicsa);
/* DDRAM2 Controller initialize */
ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2);
}