^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * June 2006 Steve Glendinning <steve.glendinning@shawell.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Polaris-specific resource declaration
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/irq.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/regulator/fixed.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/regulator/machine.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/smsc911x.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm/machvec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <asm/heartbeat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <cpu/gpio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <mach-se/mach/se.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define BCR2 (0xFFFFFF62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define WCR2 (0xFFFFFF66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define AREA5_WAIT_CTRL (0x1C00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define WAIT_STATES_10 (0x7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /* Dummy supplies, where voltage doesn't matter */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static struct regulator_consumer_supply dummy_supplies[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static struct resource smsc911x_resources[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) [0] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) .name = "smsc911x-memory",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) .start = PA_EXT5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) .end = PA_EXT5 + 0x1fff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) .flags = IORESOURCE_MEM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) [1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) .name = "smsc911x-irq",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) .start = IRQ0_IRQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .end = IRQ0_IRQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) .flags = IORESOURCE_IRQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static struct smsc911x_platform_config smsc911x_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .flags = SMSC911X_USE_32BIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .phy_interface = PHY_INTERFACE_MODE_MII,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static struct platform_device smsc911x_device = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) .name = "smsc911x",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) .id = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .num_resources = ARRAY_SIZE(smsc911x_resources),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .resource = smsc911x_resources,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .dev = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .platform_data = &smsc911x_config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static unsigned char heartbeat_bit_pos[] = { 0, 1, 2, 3 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) static struct heartbeat_data heartbeat_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .bit_pos = heartbeat_bit_pos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) .nr_bits = ARRAY_SIZE(heartbeat_bit_pos),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static struct resource heartbeat_resource = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .start = PORT_PCDR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .end = PORT_PCDR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .flags = IORESOURCE_MEM | IORESOURCE_MEM_8BIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static struct platform_device heartbeat_device = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .name = "heartbeat",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .id = -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .dev = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .platform_data = &heartbeat_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .num_resources = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .resource = &heartbeat_resource,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static struct platform_device *polaris_devices[] __initdata = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) &smsc911x_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) &heartbeat_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) static int __init polaris_initialise(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) u16 wcr, bcr_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) printk(KERN_INFO "Configuring Polaris external bus\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /* Configure area 5 with 2 wait states */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) wcr = __raw_readw(WCR2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) wcr &= (~AREA5_WAIT_CTRL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) wcr |= (WAIT_STATES_10 << 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) __raw_writew(wcr, WCR2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /* Configure area 5 for 32-bit access */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) bcr_mask = __raw_readw(BCR2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) bcr_mask |= 1 << 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) __raw_writew(bcr_mask, BCR2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) return platform_add_devices(polaris_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ARRAY_SIZE(polaris_devices));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) arch_initcall(polaris_initialise);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static struct ipr_data ipr_irq_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) /* External IRQs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) { IRQ0_IRQ, 0, 0, 1, }, /* IRQ0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) { IRQ1_IRQ, 0, 4, 1, }, /* IRQ1 */
^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) static unsigned long ipr_offsets[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) INTC_IPRC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) static struct ipr_desc ipr_irq_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .ipr_offsets = ipr_offsets,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .nr_offsets = ARRAY_SIZE(ipr_offsets),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) .ipr_data = ipr_irq_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) .nr_irqs = ARRAY_SIZE(ipr_irq_table),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .chip = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .name = "sh7709-ext",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) static void __init init_polaris_irq(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /* Disable all interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) __raw_writew(0, BCR_ILCRA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) __raw_writew(0, BCR_ILCRB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) __raw_writew(0, BCR_ILCRC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) __raw_writew(0, BCR_ILCRD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) __raw_writew(0, BCR_ILCRE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) __raw_writew(0, BCR_ILCRF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) __raw_writew(0, BCR_ILCRG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) register_ipr_controller(&ipr_irq_desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static struct sh_machine_vector mv_polaris __initmv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .mv_name = "Polaris",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .mv_init_irq = init_polaris_irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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