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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2014-07-03 17:58:49 +0400 |
|---|---|---|
| committer | Nicolas Ferre <nicolas.ferre@atmel.com> | 2014-08-25 18:02:26 +0400 |
| commit | 8d248f0d3a1ddb3c671b4029f8950fbad09be7ae (patch) | |
| tree | ac57e82af0222496cf5c6e993b85861a25fdd9e8 /arch/arm/mach-at91 | |
| parent | 9e8be232b934418932e40da276f6871dce83fa7c (diff) | |
| download | linux-8d248f0d3a1ddb3c671b4029f8950fbad09be7ae.tar.xz | |
ARM: at91: Rework ramc mapping code
Adapt the ramc mapping code to handle multiple ram controllers in the DT.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91')
| -rw-r--r-- | arch/arm/mach-at91/setup.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index c565572157db..0c8daf7a4a77 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -395,24 +395,26 @@ 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[] = { |