cpm1.c (b38736ac01e34491f339e12f9883dc4a8cc3d358) cpm1.c (a99cc66807d6c854a7f65f962766c530c91be149)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * General Purpose functions for the global management of the
4 * Communication Processor Module.
5 * Copyright (c) 1997 Dan error_act (dmalek@jlc.net)
6 *
7 * In addition to the individual control of the communication
8 * channels, there are a few functions that globally affect the

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39#include <asm/cpm1.h>
40#include <asm/io.h>
41#include <asm/rheap.h>
42#include <asm/cpm.h>
43
44#include <asm/fs_pd.h>
45
46#ifdef CONFIG_8xx_GPIO
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * General Purpose functions for the global management of the
4 * Communication Processor Module.
5 * Copyright (c) 1997 Dan error_act (dmalek@jlc.net)
6 *
7 * In addition to the individual control of the communication
8 * channels, there are a few functions that globally affect the

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39#include <asm/cpm1.h>
40#include <asm/io.h>
41#include <asm/rheap.h>
42#include <asm/cpm.h>
43
44#include <asm/fs_pd.h>
45
46#ifdef CONFIG_8xx_GPIO
47#include <linux/of_gpio.h>
47#include <linux/gpio/legacy-of-mm-gpiochip.h>
48#endif
49
50#define CPM_MAP_SIZE (0x4000)
51
52cpm8xx_t __iomem *cpmp; /* Pointer to comm processor space */
53immap_t __iomem *mpc8xx_immr = (void __iomem *)VIRT_IMMR_BASE;
54
55void __init cpm_reset(void)

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89
90#define MAX_CR_CMD_LOOPS 10000
91
92int cpm_command(u32 command, u8 opcode)
93{
94 int i, ret;
95 unsigned long flags;
96
48#endif
49
50#define CPM_MAP_SIZE (0x4000)
51
52cpm8xx_t __iomem *cpmp; /* Pointer to comm processor space */
53immap_t __iomem *mpc8xx_immr = (void __iomem *)VIRT_IMMR_BASE;
54
55void __init cpm_reset(void)

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89
90#define MAX_CR_CMD_LOOPS 10000
91
92int cpm_command(u32 command, u8 opcode)
93{
94 int i, ret;
95 unsigned long flags;
96
97 if (command & 0xffffff03)
97 if (command & 0xffffff0f)
98 return -EINVAL;
99
100 spin_lock_irqsave(&cmd_lock, flags);
101
102 ret = 0;
103 out_be16(&cpmp->cp_cpcr, command | CPM_CR_FLG | (opcode << 8));
104 for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
105 if ((in_be16(&cpmp->cp_cpcr) & CPM_CR_FLG) == 0)

--- 535 unchanged lines hidden --- 		98 return -EINVAL;
99
100 spin_lock_irqsave(&cmd_lock, flags);
101
102 ret = 0;
103 out_be16(&cpmp->cp_cpcr, command | CPM_CR_FLG | (opcode << 8));
104 for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
105 if ((in_be16(&cpmp->cp_cpcr) & CPM_CR_FLG) == 0)

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