gpio: zynq: Add pmc gpio support (73c612fe) · Commits · 戴 / test

Add PMC gpio support. Only bank 0,1, 3 and 4 are connected to the multiplexed Input output pins. Bank 0 and 1 to mio and bank 3 and 4 to extended multiplexed input output pins. Versal devices are the industry's first adaptive compute acceleration platforms. https://www.xilinx.com/support/documentation/data_sheets/ds950-versal-overview.pdf On the Versal platform, we are using two customized GPIO controllers(IP) which were used in Zynq/ZynqMp platform. One of them present in the Platform Management Controller(PMC) block and other in Processing System(PS) block. In PMC_GPIO only Bank0,1,3 & 4 are enabled and in PS_GPIO only Bank 0 & 3 are enabled. You can find more details of GPIO IP in ZynqMP TRM General Purpose I/O(Chapter-27). https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf Signed-off-by:

Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by:

Michal Simek <michal.simek@xilinx.com> Signed-off-by:

Bartosz Golaszewski <bgolaszewski@baylibre.com>

drivers/gpio/gpio-zynq.c

+16 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@
		#define ZYNQ_GPIO_MAX_BANK 4
		#define ZYNQMP_GPIO_MAX_BANK 6
		#define VERSAL_GPIO_MAX_BANK 4
		#define PMC_GPIO_MAX_BANK 5
		#define VERSAL_UNUSED_BANKS 2

		#define ZYNQ_GPIO_BANK0_NGPIO 32
		@@ -815,6 +816,20 @@ static const struct zynq_platform_data versal_gpio_def = {
		.bank_max[3] = 57, /* Bank 3 is connected to FMIOs (32 pins) */
		};

		static const struct zynq_platform_data pmc_gpio_def = {
		.label = "pmc_gpio",
		.ngpio = 116,
		.max_bank = PMC_GPIO_MAX_BANK,
		.bank_min[0] = 0,
		.bank_max[0] = 25, /* 0 to 25 are connected to MIOs (26 pins) */
		.bank_min[1] = 26,
		.bank_max[1] = 51, /* Bank 1 are connected to MIOs (26 pins) */
		.bank_min[3] = 52,
		.bank_max[3] = 83, /* Bank 3 is connected to EMIOs (32 pins) */
		.bank_min[4] = 84,
		.bank_max[4] = 115, /* Bank 4 is connected to EMIOs (32 pins) */
		};

		static const struct zynq_platform_data zynqmp_gpio_def = {
		.label = "zynqmp_gpio",
		.quirks = GPIO_QUIRK_DATA_RO_BUG,
		@@ -853,6 +868,7 @@ static const struct of_device_id zynq_gpio_of_match[] = {
		{ .compatible = "xlnx,zynq-gpio-1.0", .data = &zynq_gpio_def },
		{ .compatible = "xlnx,zynqmp-gpio-1.0", .data = &zynqmp_gpio_def },
		{ .compatible = "xlnx,versal-gpio-1.0", .data = &versal_gpio_def },
		{ .compatible = "xlnx,pmc-gpio-1.0", .data = &pmc_gpio_def },
		{ /* end of table */ }
		};
		MODULE_DEVICE_TABLE(of, zynq_gpio_of_match);

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