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path: root/drivers/power
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-rw-r--r--drivers/power/reset/at91-sama5d2_shdwc.c72
1 files changed, 54 insertions, 18 deletions
diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c
index d9cf91e5b06d..125e592af445 100644
--- a/drivers/power/reset/at91-sama5d2_shdwc.c
+++ b/drivers/power/reset/at91-sama5d2_shdwc.c
@@ -78,9 +78,15 @@ struct pmc_reg_config {
u8 mckr;
};
+struct ddrc_reg_config {
+ u32 type_offset;
+ u32 type_mask;
+};
+
struct reg_config {
struct shdwc_reg_config shdwc;
struct pmc_reg_config pmc;
+ struct ddrc_reg_config ddrc;
};
struct shdwc {
@@ -262,6 +268,10 @@ static const struct reg_config sama5d2_reg_config = {
.pmc = {
.mckr = 0x30,
},
+ .ddrc = {
+ .type_offset = AT91_DDRSDRC_MDR,
+ .type_mask = AT91_DDRSDRC_MD
+ },
};
static const struct reg_config sam9x60_reg_config = {
@@ -275,6 +285,23 @@ static const struct reg_config sam9x60_reg_config = {
.pmc = {
.mckr = 0x28,
},
+ .ddrc = {
+ .type_offset = AT91_DDRSDRC_MDR,
+ .type_mask = AT91_DDRSDRC_MD
+ },
+};
+
+static const struct reg_config sama7g5_reg_config = {
+ .shdwc = {
+ .wkup_pin_input = 0,
+ .mr_rtcwk_shift = 17,
+ .mr_rttwk_shift = 16,
+ .sr_rtcwk_shift = 5,
+ .sr_rttwk_shift = 4,
+ },
+ .pmc = {
+ .mckr = 0x28,
+ },
};
static const struct of_device_id at91_shdwc_of_match[] = {
@@ -285,6 +312,10 @@ static const struct of_device_id at91_shdwc_of_match[] = {
{
.compatible = "microchip,sam9x60-shdwc",
.data = &sam9x60_reg_config,
+ },
+ {
+ .compatible = "microchip,sama7g5-shdwc",
+ .data = &sama7g5_reg_config,
}, {
/*sentinel*/
}
@@ -294,6 +325,7 @@ MODULE_DEVICE_TABLE(of, at91_shdwc_of_match);
static const struct of_device_id at91_pmc_ids[] = {
{ .compatible = "atmel,sama5d2-pmc" },
{ .compatible = "microchip,sam9x60-pmc" },
+ { .compatible = "microchip,sama7g5-pmc" },
{ /* Sentinel. */ }
};
@@ -355,30 +387,34 @@ static int __init at91_shdwc_probe(struct platform_device *pdev)
goto clk_disable;
}
- np = of_find_compatible_node(NULL, NULL, "atmel,sama5d3-ddramc");
- if (!np) {
- ret = -ENODEV;
- goto unmap;
- }
+ if (at91_shdwc->rcfg->ddrc.type_mask) {
+ np = of_find_compatible_node(NULL, NULL,
+ "atmel,sama5d3-ddramc");
+ if (!np) {
+ ret = -ENODEV;
+ goto unmap;
+ }
- at91_shdwc->mpddrc_base = of_iomap(np, 0);
- of_node_put(np);
+ at91_shdwc->mpddrc_base = of_iomap(np, 0);
+ of_node_put(np);
- if (!at91_shdwc->mpddrc_base) {
- ret = -ENOMEM;
- goto unmap;
+ if (!at91_shdwc->mpddrc_base) {
+ ret = -ENOMEM;
+ goto unmap;
+ }
+
+ ddr_type = readl(at91_shdwc->mpddrc_base +
+ at91_shdwc->rcfg->ddrc.type_offset) &
+ at91_shdwc->rcfg->ddrc.type_mask;
+ if (ddr_type != AT91_DDRSDRC_MD_LPDDR2 &&
+ ddr_type != AT91_DDRSDRC_MD_LPDDR3) {
+ iounmap(at91_shdwc->mpddrc_base);
+ at91_shdwc->mpddrc_base = NULL;
+ }
}
pm_power_off = at91_poweroff;
- ddr_type = readl(at91_shdwc->mpddrc_base + AT91_DDRSDRC_MDR) &
- AT91_DDRSDRC_MD;
- if (ddr_type != AT91_DDRSDRC_MD_LPDDR2 &&
- ddr_type != AT91_DDRSDRC_MD_LPDDR3) {
- iounmap(at91_shdwc->mpddrc_base);
- at91_shdwc->mpddrc_base = NULL;
- }
-
return 0;
unmap: