[people/ms/u-boot.git] / board / theobroma-systems / puma_rk3399 / puma-rk3399.c

/*
 * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */
#include <common.h>
#include <dm.h>
#include <misc.h>
#include <ram.h>
#include <dm/pinctrl.h>
#include <dm/uclass-internal.h>
#include <misc.h>
#include <asm/setup.h>
#include <asm/arch/periph.h>
#include <power/regulator.h>
#include <u-boot/sha256.h>

#define RK3399_CPUID_OFF  0x7
#define RK3399_CPUID_LEN  0x10

DECLARE_GLOBAL_DATA_PTR;

#define RK3399_CPUID_OFF  0x7
#define RK3399_CPUID_LEN  0x10

DECLARE_GLOBAL_DATA_PTR;

int board_init(void)
{
	struct udevice *pinctrl, *regulator;
	int ret;

	/*
	 * The PWM does not have decicated interrupt number in dts and can
	 * not get periph_id by pinctrl framework, so let's init them here.
	 * The PWM2 and PWM3 are for pwm regulators.
	 */
	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
	if (ret) {
		debug("%s: Cannot find pinctrl device\n", __func__);
		goto out;
	}

	ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
	if (ret) {
		debug("%s PWM2 pinctrl init fail!\n", __func__);
		goto out;
	}

	/* rk3399 need to init vdd_center to get the correct output voltage */
	ret = regulator_get_by_platname("vdd_center", &regulator);
	if (ret)
		debug("%s: Cannot get vdd_center regulator\n", __func__);

	ret = regulator_get_by_platname("vcc5v0_host", &regulator);
	if (ret) {
		debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
		goto out;
	}

	ret = regulator_set_enable(regulator, true);
	if (ret) {
		debug("%s vcc5v0-host-en set fail!\n", __func__);
		goto out;
	}

out:
	return 0;
}

static void setup_macaddr(void)
{
#if CONFIG_IS_ENABLED(CMD_NET)
	int ret;
	const char *cpuid = getenv("cpuid#");
	u8 hash[SHA256_SUM_LEN];
	int size = sizeof(hash);
	u8 mac_addr[6];

	/* Only generate a MAC address, if none is set in the environment */
	if (getenv("ethaddr"))
		return;

	if (!cpuid) {
		debug("%s: could not retrieve 'cpuid#'\n", __func__);
		return;
	}

	ret = hash_block("sha256", (void *)cpuid, strlen(cpuid), hash, &size);
	if (ret) {
		debug("%s: failed to calculate SHA256\n", __func__);
		return;
	}

	/* Copy 6 bytes of the hash to base the MAC address on */
	memcpy(mac_addr, hash, 6);

	/* Make this a valid MAC address and set it */
	mac_addr[0] &= 0xfe;  /* clear multicast bit */
	mac_addr[0] |= 0x02;  /* set local assignment bit (IEEE802) */
	eth_setenv_enetaddr("ethaddr", mac_addr);
#endif

	return;
}

static void setup_serial(void)
{
#if CONFIG_IS_ENABLED(ROCKCHIP_EFUSE)
	struct udevice *dev;
	int ret, i;
	u8 cpuid[RK3399_CPUID_LEN];
	u8 low[RK3399_CPUID_LEN/2], high[RK3399_CPUID_LEN/2];
	char cpuid_str[RK3399_CPUID_LEN * 2 + 1];
	u64 serialno;
	char serialno_str[16];

	/* retrieve the device */
	ret = uclass_get_device_by_driver(UCLASS_MISC,
					  DM_GET_DRIVER(rockchip_efuse), &dev);
	if (ret) {
		debug("%s: could not find efuse device\n", __func__);
		return;
	}

	/* read the cpu_id range from the efuses */
	ret = misc_read(dev, RK3399_CPUID_OFF, &cpuid, sizeof(cpuid));
	if (ret) {
		debug("%s: reading cpuid from the efuses failed\n",
		      __func__);
		return;
	}

	memset(cpuid_str, 0, sizeof(cpuid_str));
	for (i = 0; i < 16; i++)
		sprintf(&cpuid_str[i * 2], "%02x", cpuid[i]);

	debug("cpuid: %s\n", cpuid_str);

	/*
	 * Mix the cpuid bytes using the same rules as in
	 *   ${linux}/drivers/soc/rockchip/rockchip-cpuinfo.c
	 */
	for (i = 0; i < 8; i++) {
		low[i] = cpuid[1 + (i << 1)];
		high[i] = cpuid[i << 1];
	}

	serialno = crc32_no_comp(0, low, 8);
	serialno |= (u64)crc32_no_comp(serialno, high, 8) << 32;
	snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno);

	setenv("cpuid#", cpuid_str);
	setenv("serial#", serialno_str);
#endif

	return;
}

int misc_init_r(void)
{
	setup_serial();
	setup_macaddr();

	return 0;
}

#ifdef CONFIG_SERIAL_TAG
void get_board_serial(struct tag_serialnr *serialnr)
{
	char *serial_string;
	u64 serial = 0;

	serial_string = getenv("serial#");

	if (serial_string)
		serial = simple_strtoull(serial_string, NULL, 16);

	serialnr->high = (u32)(serial >> 32);
	serialnr->low = (u32)(serial & 0xffffffff);
}
#endif

int dram_init_banksize(void)
{
	/* Reserve 0x200000 for ATF bl31 */
	gd->bd->bi_dram[0].start = 0x200000;
	gd->bd->bi_dram[0].size = 0x7e000000;

	return 0;
}
Commit	Line	Data
a13110a9 KG	1	/*
	2	* (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
	3	*
	4	* SPDX-License-Identifier: GPL-2.0+
	5	*/
	6	#include <common.h>
	7	#include <dm.h>
e92e5803 PT	8	#include <misc.h>
e92e5803 PT	9	#include <ram.h>
a13110a9 KG	10	#include <dm/pinctrl.h>
a13110a9 KG	11	#include <dm/uclass-internal.h>
9415b9a7 PT	12	#include <misc.h>
9415b9a7 PT	13	#include <asm/setup.h>
a13110a9 KG	14	#include <asm/arch/periph.h>
a13110a9 KG	15	#include <power/regulator.h>
e92e5803 PT	16	#include <u-boot/sha256.h>
e92e5803 PT	17
9415b9a7 PT	18	#define RK3399_CPUID_OFF 0x7
	19	#define RK3399_CPUID_LEN 0x10
	20
e92e5803 PT	21	DECLARE_GLOBAL_DATA_PTR;
	22
	23	#define RK3399_CPUID_OFF 0x7
	24	#define RK3399_CPUID_LEN 0x10
a13110a9 KG	25
	26	DECLARE_GLOBAL_DATA_PTR;
	27
	28	int board_init(void)
	29	{
	30	struct udevice pinctrl, regulator;
	31	int ret;
	32
	33	/*
	34	* The PWM does not have decicated interrupt number in dts and can
	35	* not get periph_id by pinctrl framework, so let's init them here.
	36	* The PWM2 and PWM3 are for pwm regulators.
	37	*/
	38	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
	39	if (ret) {
	40	debug("%s: Cannot find pinctrl device\n", __func__);
	41	goto out;
	42	}
	43
	44	ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
	45	if (ret) {
	46	debug("%s PWM2 pinctrl init fail!\n", __func__);
	47	goto out;
	48	}
	49
	50	/* rk3399 need to init vdd_center to get the correct output voltage */
	51	ret = regulator_get_by_platname("vdd_center", &regulator);
	52	if (ret)
	53	debug("%s: Cannot get vdd_center regulator\n", __func__);
	54
	55	ret = regulator_get_by_platname("vcc5v0_host", &regulator);
	56	if (ret) {
	57	debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
	58	goto out;
	59	}
	60
	61	ret = regulator_set_enable(regulator, true);
	62	if (ret) {
	63	debug("%s vcc5v0-host-en set fail!\n", __func__);
	64	goto out;
	65	}
	66
	67	out:
	68	return 0;
	69	}
	70
8adc9d18 KG	71	static void setup_macaddr(void)
	72	{
	73	#if CONFIG_IS_ENABLED(CMD_NET)
	74	int ret;
	75	const char *cpuid = getenv("cpuid#");
	76	u8 hash[SHA256_SUM_LEN];
	77	int size = sizeof(hash);
	78	u8 mac_addr[6];
	79
	80	/* Only generate a MAC address, if none is set in the environment */
	81	if (getenv("ethaddr"))
	82	return;
	83
	84	if (!cpuid) {
	85	debug("%s: could not retrieve 'cpuid#'\n", __func__);
	86	return;
	87	}
	88
	89	ret = hash_block("sha256", (void *)cpuid, strlen(cpuid), hash, &size);
	90	if (ret) {
	91	debug("%s: failed to calculate SHA256\n", __func__);
	92	return;
	93	}
	94
	95	/* Copy 6 bytes of the hash to base the MAC address on */
	96	memcpy(mac_addr, hash, 6);
	97
	98	/* Make this a valid MAC address and set it */
	99	mac_addr[0] &= 0xfe; /* clear multicast bit */
	100	mac_addr[0] \|= 0x02; /* set local assignment bit (IEEE802) */
	101	eth_setenv_enetaddr("ethaddr", mac_addr);
	102	#endif
	103
	104	return;
	105	}
	106
9415b9a7 PT	107	static void setup_serial(void)
	108	{
	109	#if CONFIG_IS_ENABLED(ROCKCHIP_EFUSE)
	110	struct udevice *dev;
	111	int ret, i;
	112	u8 cpuid[RK3399_CPUID_LEN];
	113	u8 low[RK3399_CPUID_LEN/2], high[RK3399_CPUID_LEN/2];
	114	char cpuid_str[RK3399_CPUID_LEN * 2 + 1];
	115	u64 serialno;
	116	char serialno_str[16];
	117
8adc9d18 KG	118	/* retrieve the device */
	119	ret = uclass_get_device_by_driver(UCLASS_MISC,
	120	DM_GET_DRIVER(rockchip_efuse), &dev);
9415b9a7 PT	121	if (ret) {
	122	debug("%s: could not find efuse device\n", __func__);
	123	return;
	124	}
	125
	126	/* read the cpu_id range from the efuses */
	127	ret = misc_read(dev, RK3399_CPUID_OFF, &cpuid, sizeof(cpuid));
	128	if (ret) {
	129	debug("%s: reading cpuid from the efuses failed\n",
	130	__func__);
	131	return;
	132	}
	133
	134	memset(cpuid_str, 0, sizeof(cpuid_str));
	135	for (i = 0; i < 16; i++)
	136	sprintf(&cpuid_str[i * 2], "%02x", cpuid[i]);
	137
	138	debug("cpuid: %s\n", cpuid_str);
	139
	140	/*
	141	* Mix the cpuid bytes using the same rules as in
	142	* ${linux}/drivers/soc/rockchip/rockchip-cpuinfo.c
	143	*/
	144	for (i = 0; i < 8; i++) {
	145	low[i] = cpuid[1 + (i << 1)];
	146	high[i] = cpuid[i << 1];
	147	}
	148
	149	serialno = crc32_no_comp(0, low, 8);
	150	serialno \|= (u64)crc32_no_comp(serialno, high, 8) << 32;
	151	snprintf(serialno_str, sizeof(serialno_str), "%llx", serialno);
	152
	153	setenv("cpuid#", cpuid_str);
	154	setenv("serial#", serialno_str);
	155	#endif
	156
	157	return;
	158	}
	159
	160	int misc_init_r(void)
	161	{
	162	setup_serial();
8adc9d18	163	setup_macaddr();
9415b9a7 PT	164
	165	return 0;
	166	}
	167
	168	#ifdef CONFIG_SERIAL_TAG
	169	void get_board_serial(struct tag_serialnr *serialnr)
	170	{
	171	char *serial_string;
	172	u64 serial = 0;
	173
	174	serial_string = getenv("serial#");
	175
	176	if (serial_string)
	177	serial = simple_strtoull(serial_string, NULL, 16);
	178
	179	serialnr->high = (u32)(serial >> 32);
	180	serialnr->low = (u32)(serial & 0xffffffff);
	181	}
	182	#endif
	183
a13110a9 KG	184	int dram_init_banksize(void)
	185	{
	186	/* Reserve 0x200000 for ATF bl31 */
	187	gd->bd->bi_dram[0].start = 0x200000;
	188	gd->bd->bi_dram[0].size = 0x7e000000;
	189
	190	return 0;
	191	}