Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  * Copyright (c) 2017 BayLibre, SAS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Author: Neil Armstrong <narmstrong@baylibre.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/of_address.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/of_platform.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/sys_soc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/bitfield.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/mfd/syscon.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #define AO_SEC_SD_CFG8		0xe0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define AO_SEC_SOCINFO_OFFSET	AO_SEC_SD_CFG8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #define SOCINFO_MAJOR	GENMASK(31, 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define SOCINFO_PACK	GENMASK(23, 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define SOCINFO_MINOR	GENMASK(15, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define SOCINFO_MISC	GENMASK(7, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) static const struct meson_gx_soc_id {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	unsigned int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) } soc_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	{ "GXBB", 0x1f },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	{ "GXTVBB", 0x20 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	{ "GXL", 0x21 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	{ "GXM", 0x22 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	{ "TXL", 0x23 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	{ "TXLX", 0x24 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	{ "AXG", 0x25 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	{ "GXLX", 0x26 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	{ "TXHD", 0x27 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	{ "G12A", 0x28 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	{ "G12B", 0x29 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	{ "SM1", 0x2b },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	{ "A1", 0x2c },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) static const struct meson_gx_package_id {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	unsigned int major_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	unsigned int pack_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	unsigned int pack_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) } soc_packages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	{ "S905", 0x1f, 0, 0x20 }, /* pack_id != 0x20 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	{ "S905H", 0x1f, 0x3, 0xf }, /* pack_id & 0xf == 0x3 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	{ "S905M", 0x1f, 0x20, 0xf0 }, /* pack_id == 0x20 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	{ "S905D", 0x21, 0, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	{ "S905X", 0x21, 0x80, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	{ "S905W", 0x21, 0xa0, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	{ "S905L", 0x21, 0xc0, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	{ "S905M2", 0x21, 0xe0, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	{ "S805X", 0x21, 0x30, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	{ "S805Y", 0x21, 0xb0, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	{ "S912", 0x22, 0, 0x0 }, /* Only S912 is known for GXM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	{ "962X", 0x24, 0x10, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	{ "962E", 0x24, 0x20, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	{ "A113X", 0x25, 0x37, 0xff },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	{ "A113D", 0x25, 0x22, 0xff },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	{ "S905D2", 0x28, 0x10, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	{ "S905X2", 0x28, 0x40, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	{ "A311D", 0x29, 0x10, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	{ "S922X", 0x29, 0x40, 0xf0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	{ "S905D3", 0x2b, 0x4, 0xf5 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	{ "S905X3", 0x2b, 0x5, 0xf5 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	{ "S905X3", 0x2b, 0x10, 0x3f },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	{ "S905D3", 0x2b, 0x30, 0x3f },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	{ "A113L", 0x2c, 0x0, 0xf8 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) static inline unsigned int socinfo_to_major(u32 socinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	return FIELD_GET(SOCINFO_MAJOR, socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) static inline unsigned int socinfo_to_minor(u32 socinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	return FIELD_GET(SOCINFO_MINOR, socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) static inline unsigned int socinfo_to_pack(u32 socinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	return FIELD_GET(SOCINFO_PACK, socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) static inline unsigned int socinfo_to_misc(u32 socinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	return FIELD_GET(SOCINFO_MISC, socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) static const char *socinfo_to_package_id(u32 socinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	unsigned int pack = socinfo_to_pack(socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	unsigned int major = socinfo_to_major(socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	for (i = 0 ; i < ARRAY_SIZE(soc_packages) ; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		if (soc_packages[i].major_id == major &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 		    soc_packages[i].pack_id ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 				(pack & soc_packages[i].pack_mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 			return soc_packages[i].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	return "Unknown";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static const char *socinfo_to_soc_id(u32 socinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	unsigned int id = socinfo_to_major(socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	for (i = 0 ; i < ARRAY_SIZE(soc_ids) ; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		if (soc_ids[i].id == id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 			return soc_ids[i].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	return "Unknown";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) static int __init meson_gx_socinfo_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	struct soc_device_attribute *soc_dev_attr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	struct soc_device *soc_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	struct device_node *np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	unsigned int socinfo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	/* look up for chipid node */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	np = of_find_compatible_node(NULL, NULL, "amlogic,meson-gx-ao-secure");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (!np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	/* check if interface is enabled */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	if (!of_device_is_available(np)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		of_node_put(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	/* check if chip-id is available */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	if (!of_property_read_bool(np, "amlogic,has-chip-id")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		of_node_put(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	/* node should be a syscon */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	regmap = syscon_node_to_regmap(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	of_node_put(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	if (IS_ERR(regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		pr_err("%s: failed to get regmap\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	ret = regmap_read(regmap, AO_SEC_SOCINFO_OFFSET, &socinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	if (!socinfo) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		pr_err("%s: invalid chipid value\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	if (!soc_dev_attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	soc_dev_attr->family = "Amlogic Meson";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	np = of_find_node_by_path("/");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	of_property_read_string(np, "model", &soc_dev_attr->machine);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	of_node_put(np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%x:%x - %x:%x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 					   socinfo_to_major(socinfo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 					   socinfo_to_minor(socinfo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 					   socinfo_to_pack(socinfo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 					   socinfo_to_misc(socinfo));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	soc_dev_attr->soc_id = kasprintf(GFP_KERNEL, "%s (%s)",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 					 socinfo_to_soc_id(socinfo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 					 socinfo_to_package_id(socinfo));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	soc_dev = soc_device_register(soc_dev_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	if (IS_ERR(soc_dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 		kfree(soc_dev_attr->revision);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		kfree_const(soc_dev_attr->soc_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		kfree(soc_dev_attr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		return PTR_ERR(soc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	dev = soc_device_to_device(soc_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	dev_info(dev, "Amlogic Meson %s Revision %x:%x (%x:%x) Detected\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 			soc_dev_attr->soc_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 			socinfo_to_major(socinfo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 			socinfo_to_minor(socinfo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			socinfo_to_pack(socinfo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 			socinfo_to_misc(socinfo));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) device_initcall(meson_gx_socinfo_init);