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| author | Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> | 2014-03-31 11:52:51 +0900 |
|---|---|---|
| committer | Nobuhiro Iwamatsu <iwamatsu@nigauri.org> | 2014-04-28 04:35:12 +0900 |
| commit | ccde6771dca4e792018392931d3c30b10ce137b1 (patch) | |
| tree | aa8cb2c1c4f2d74ccd5d5952d94f51cb02c30832 /board/renesas | |
| parent | e05b98dadfa6a9a14d6d9445d11b611eda477457 (diff) | |
| download | u-boot-imx-ccde6771dca4e792018392931d3c30b10ce137b1.zip u-boot-imx-ccde6771dca4e792018392931d3c30b10ce137b1.tar.gz u-boot-imx-ccde6771dca4e792018392931d3c30b10ce137b1.tar.bz2 | |
arm: rmobile: koelsch: Change to maximum CPU frequency
Maximum CPU clock of R8A7791 that are used in koelsch board is 1.5GHz.
This change to use the maximum clock in this board.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Diffstat (limited to 'board/renesas')
| -rw-r--r-- | board/renesas/koelsch/koelsch.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/board/renesas/koelsch/koelsch.c b/board/renesas/koelsch/koelsch.c index d4f6372..bfd0cc6 100644 --- a/board/renesas/koelsch/koelsch.c +++ b/board/renesas/koelsch/koelsch.c @@ -19,19 +19,26 @@ #include <netdev.h> #include <miiphy.h> #include <i2c.h> +#include <div64.h> #include "qos.h" DECLARE_GLOBAL_DATA_PTR; +#define CLK2MHZ(clk) (clk / 1000 / 1000) void s_init(void) { struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; + u32 stc; /* Watchdog init */ writel(0xA5A5A500, &rwdt->rwtcsra); writel(0xA5A5A500, &swdt->swtcsra); + /* CPU frequency setting. Set to 1.5GHz */ + stc = ((1500 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) << PLL0_STC_BIT; + clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc); + /* QoS */ qos_init(); } |