Messages in this thread Patch in this message | | | From | Maxime Ripard <> | Subject | [PATCH RESEND 04/18] AT91: Rework ramc mapping code | Date | Thu, 3 Jul 2014 16:41:19 +0200 |
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Adapt the ramc mapping code to handle multiple ram controllers in the DT.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> --- arch/arm/mach-at91/setup.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-)
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 9c4c7fb323fb..cc520596f23b 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -393,24 +393,26 @@ static void at91_dt_ramc(void) { struct device_node *np; const struct of_device_id *of_id; + int idx = 0; - np = of_find_matching_node(NULL, ramc_ids); - if (!np) - panic(pr_fmt("unable to find compatible ram controller node in dtb\n")); + for_each_matching_node(np, ramc_ids) { + at91_ramc_base[idx] = of_iomap(np, 0); + if (!at91_ramc_base[idx]) + panic(pr_fmt("unable to map ramc[%d] cpu registers\n"), idx); - at91_ramc_base[0] = of_iomap(np, 0); - if (!at91_ramc_base[0]) - panic(pr_fmt("unable to map ramc[0] cpu registers\n")); - /* the controller may have 2 banks */ - at91_ramc_base[1] = of_iomap(np, 1); + idx++; + } + + if (!idx) + panic(pr_fmt("unable to find compatible ram controller node in dtb\n")); of_id = of_match_node(ramc_ids, np); - if (!of_id) + if (!of_id) { pr_warn("ramc no standby function available\n"); - else - at91_pm_set_standby(of_id->data); + return; + } - of_node_put(np); + at91_pm_set_standby(of_id->data); } static struct of_device_id shdwc_ids[] = { -- 2.0.1
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