mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2004, 2011 Freescale Semiconductor.
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*/
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#include <common.h>
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/*
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* CADMUS Board System Registers
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*/
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#ifndef CONFIG_SYS_CADMUS_BASE_REG
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#define CONFIG_SYS_CADMUS_BASE_REG (CADMUS_BASE_ADDR + 0x4000)
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#endif
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typedef struct cadmus_reg {
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u_char cm_ver; /* Board version */
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u_char cm_csr; /* General control/status */
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u_char cm_rst; /* Reset control */
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u_char cm_hsclk; /* High speed clock */
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u_char cm_hsxclk; /* High speed clock extended */
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u_char cm_led; /* LED data */
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u_char cm_pci; /* PCI control/status */
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u_char cm_dma; /* DMA control */
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u_char cm_reserved[248]; /* Total 256 bytes */
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} cadmus_reg_t;
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unsigned int
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get_board_version(void)
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{
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volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
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return cadmus->cm_ver;
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}
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unsigned long
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get_clock_freq(void)
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{
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volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
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uint pci1_speed = (cadmus->cm_pci >> 2) & 0x3; /* PSPEED in [4:5] */
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if (pci1_speed == 0) {
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return 33333333;
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} else if (pci1_speed == 1) {
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return 66666666;
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} else {
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/* Really, unknown. Be safe? */
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return 33333333;
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}
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}
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unsigned int
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get_pci_slot(void)
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{
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volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
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/*
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* PCI slot in USER bits CSR[6:7] by convention.
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*/
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return ((cadmus->cm_csr >> 6) & 0x3) + 1;
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}
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unsigned int
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get_pci_dual(void)
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{
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volatile cadmus_reg_t *cadmus = (cadmus_reg_t *)CONFIG_SYS_CADMUS_BASE_REG;
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/*
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* PCI DUAL in CM_PCI[3]
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*/
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return cadmus->cm_pci & 0x10;
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}
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