memory/samsung/exynos-srom.c

17 #include "exynos-srom.h"
30  * @offset: srom register offset from the controller base address.
39  * struct exynos_srom: platform data for exynos srom controller driver.
41  * @reg_base: srom base address
67 static int exynos_srom_configure_bank(struct exynos_srom *srom,
78 	if (of_property_read_bool(np, "samsung,srom-page-mode"))
80 	if (of_property_read_u32_array(np, "samsung,srom-timing", timing,
90 	bw = readl_relaxed(srom->reg_base + EXYNOS_SROM_BW);
92 	writel_relaxed(bw, srom->reg_base + EXYNOS_SROM_BW);
100 		       srom->reg_base + EXYNOS_SROM_BC0 + bank);
108 	struct exynos_srom *srom;
118 	srom = devm_kzalloc(&pdev->dev,
120 	if (!srom)
123 	srom->dev = dev;
124 	srom->reg_base = of_iomap(np, 0);
125 	if (!srom->reg_base) {
126 		dev_err(&pdev->dev, "iomap of exynos srom controller failed\n");
130 	platform_set_drvdata(pdev, srom);
132 	srom->reg_offset = exynos_srom_alloc_reg_dump(exynos_srom_offsets,
134 	if (!srom->reg_offset) {
135 		iounmap(srom->reg_base);
140 		if (exynos_srom_configure_bank(srom, child)) {
177 	struct exynos_srom *srom = dev_get_drvdata(dev);
179 	exynos_srom_save(srom->reg_base, srom->reg_offset,
186 	struct exynos_srom *srom = dev_get_drvdata(dev);
188 	exynos_srom_restore(srom->reg_base, srom->reg_offset,
196 		.compatible	= "samsung,exynos4210-srom",
206 		.name = "exynos-srom",