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* MIPS: ath79: fix regression in PCI window initializationFelix Fietkau2016-05-171-8/+8
| | | | | | | | | | | | | ath79_ddr_pci_win_base has the type void __iomem *, so register offsets need to be a multiple of 4. Cc: Alban Bedel <albeu@free.fr> Fixes: 24b0e3e84fbf ("MIPS: ath79: Improve the DDR controller interface") Signed-off-by: Felix Fietkau <nbd@nbd.name> Cc: sergei.shtylyov@cogentembedded.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13258/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: ath79: make ath79_ddr_ctrl_init() compatible for newer SoCsFelix Fietkau2016-05-171-4/+4
| | | | | | | | | | | | | AR913x, AR724x and AR933x are the only SoCs where the ath79_ddr_wb_flush_base starts at 0x7c, all newer SoCs use 0x9c Invert the logic to make the code compatible with AR95xx Signed-off-by: Felix Fietkau <nbd@nbd.name> Cc: albeu@free.fr Cc: sergei.shtylyov@cogentembedded.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13257/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: ath79: Improve the DDR controller interfaceAlban Bedel2015-06-211-2/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The DDR controller need to be used by the IRQ controller to flush the write buffer of some devices before running the IRQ handler. It is also used by the PCI controller to setup the PCI memory windows. The current interface used to access the DDR controller doesn't provides any useful abstraction and simply rely on a shared global pointer. Replace this by a simple API to setup the PCI memory windows and use the write buffer flush independently of the SoC type. That remove the need for the shared global pointer, simplify the IRQ handler code. [ralf@linux-mips.org: Folded in Alban Bedel's follup fix.] Signed-off-by: Alban Bedel <albeu@free.fr> Cc: linux-mips@linux-mips.org Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: Sergey Ryazanov <ryazanov.s.a@gmail.com> Cc: Gabor Juhos <juhosg@openwrt.org> Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9773/ Patchwork: http://patchwork.linux-mips.org/patch/10543/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: ath79: add QCA955X specific glue to ath79_device_reset_{set, clear}Gabor Juhos2013-02-191-0/+4
| | | | | | | | | | | | | The ath79_device_reset_* are causing BUG when those are used on the QCA955x SoCs. The patch adds the required code to avoid that. Cc: Rodriguez, Luis <rodrigue@qca.qualcomm.com> Cc: Giori, Kathy <kgiori@qca.qualcomm.com> Cc: QCA Linux Team <qca-linux-team@qca.qualcomm.com> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4948/ Signed-off-by: John Crispin <blogic@openwrt.org>
* MIPS: ath79: add AR934X specific glue to ath79_device_reset_{clear,set}Gabor Juhos2012-05-151-1/+8
| | | | | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com> Cc: linux-mips@linux-mips.org Cc: mcgrof@infradead.org Patchwork: https://patchwork.linux-mips.org/patch/3511/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: ath79: Store the SoC revision in a global variableGabor Juhos2011-12-071-0/+1
| | | | | | | | | | | | Knowing the exact revision of the SoC is required to make runtime decisions in various code paths. We have determined the SoC revision already, so we only need to store that in a global variable. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3027/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: ath79: Add AR933X specific glue for ath79_device_reset_{set,clear}Gabor Juhos2011-12-071-0/+4
| | | | | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Kathy Giori <kgiori@qca.qualcomm.com> Cc: "Luis R. Rodriguez" <rodrigue@qca.qualcomm.com> Patchwork: https://patchwork.linux-mips.org/patch/2523/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Add initial support for the Atheros AR71XX/AR724X/AR931X SoCsGabor Juhos2011-01-181-0/+97
This patch adds initial support for various Atheros SoCs based on the MIPS 24Kc core. The following models are supported at the moment: - AR7130 - AR7141 - AR7161 - AR9130 - AR9132 - AR7240 - AR7241 - AR7242 The current patch contains minimal support only, but the resulting kernel can boot into user-space with using of an initramfs image on various boards which are using these SoCs. Support for more built-in devices and individual boards will be implemented in further patches. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Cc: Kathy Giori <Kathy.Giori@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1947/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>