From: Claudiu Beznea <claudiu.beznea@microchip.com> To: <robh+dt@kernel.org>, <mark.rutland@arm.com>, <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>, <ludovic.desroches@microchip.com>, <sre@kernel.org> Cc: <devicetree@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>, Claudiu Beznea <claudiu.beznea@microchip.com> Subject: [PATCH 3/3] power: reset: at91-sama5d2_shdwc: add support for sama7g5 Date: Wed, 16 Dec 2020 14:57:33 +0200 [thread overview] Message-ID: <1608123453-1423-4-git-send-email-claudiu.beznea@microchip.com> (raw) In-Reply-To: <1608123453-1423-1-git-send-email-claudiu.beznea@microchip.com> Add support for SAMA7G5 by adding proper struct reg_config structure and since SAMA7G5 is not currently on LPDDR setups the commit also avoid the mapping of DDR controller. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> --- drivers/power/reset/at91-sama5d2_shdwc.c | 72 ++++++++++++++++++++++++-------- 1 file changed, 54 insertions(+), 18 deletions(-) diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c index 3996167f676f..a3342c8c3728 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: -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Claudiu Beznea <claudiu.beznea@microchip.com> To: <robh+dt@kernel.org>, <mark.rutland@arm.com>, <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>, <ludovic.desroches@microchip.com>, <sre@kernel.org> Cc: devicetree@vger.kernel.org, Claudiu Beznea <claudiu.beznea@microchip.com>, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org Subject: [PATCH 3/3] power: reset: at91-sama5d2_shdwc: add support for sama7g5 Date: Wed, 16 Dec 2020 14:57:33 +0200 [thread overview] Message-ID: <1608123453-1423-4-git-send-email-claudiu.beznea@microchip.com> (raw) In-Reply-To: <1608123453-1423-1-git-send-email-claudiu.beznea@microchip.com> Add support for SAMA7G5 by adding proper struct reg_config structure and since SAMA7G5 is not currently on LPDDR setups the commit also avoid the mapping of DDR controller. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> --- drivers/power/reset/at91-sama5d2_shdwc.c | 72 ++++++++++++++++++++++++-------- 1 file changed, 54 insertions(+), 18 deletions(-) diff --git a/drivers/power/reset/at91-sama5d2_shdwc.c b/drivers/power/reset/at91-sama5d2_shdwc.c index 3996167f676f..a3342c8c3728 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: -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-12-16 12:59 UTC|newest] Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-12-16 12:57 [PATCH 0/3] power: reset: at91-sama5d2_shdwc: add support for SAMA7G5 Claudiu Beznea 2020-12-16 12:57 ` Claudiu Beznea 2020-12-16 12:57 ` [PATCH 1/3] power: reset: at91-sama5d2_shdwc: fix wkupdbc mask Claudiu Beznea 2020-12-16 12:57 ` Claudiu Beznea 2020-12-16 13:40 ` Alexandre Belloni 2020-12-16 13:40 ` Alexandre Belloni 2020-12-16 12:57 ` [PATCH 2/3] dt-bindings: atmel-sysreg: add microchip,sama7g5-shdwc Claudiu Beznea 2020-12-16 12:57 ` Claudiu Beznea 2020-12-16 13:41 ` Alexandre Belloni 2020-12-16 13:41 ` Alexandre Belloni 2020-12-21 19:37 ` Rob Herring 2020-12-21 19:37 ` Rob Herring 2020-12-21 19:37 ` Rob Herring 2020-12-21 19:37 ` Rob Herring 2020-12-16 12:57 ` Claudiu Beznea [this message] 2020-12-16 12:57 ` [PATCH 3/3] power: reset: at91-sama5d2_shdwc: add support for sama7g5 Claudiu Beznea 2020-12-16 13:45 ` Alexandre Belloni 2020-12-16 13:45 ` Alexandre Belloni 2020-12-16 14:11 ` Claudiu.Beznea 2020-12-16 14:11 ` Claudiu.Beznea 2020-12-16 14:12 ` Claudiu.Beznea 2020-12-16 14:12 ` Claudiu.Beznea 2021-01-16 13:58 ` [PATCH 0/3] power: reset: at91-sama5d2_shdwc: add support for SAMA7G5 Sebastian Reichel 2021-01-16 13:58 ` Sebastian Reichel
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