[POWERPC] mpc5200: Add cuimage support for mpc5200 boards (85498ae8) · Commits · e / devices / android_kernel_teracube_2e

arch/powerpc/boot/Makefile

+3 −2

Original line number	Diff line number	Diff line
		@@ -45,8 +45,8 @@ src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \
		ns16550.c serial.c simple_alloc.c div64.S util.S \
		gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
		4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
		cpm-serial.c stdlib.c
		src-plat := of.c cuboot-83xx.c cuboot-85xx.c holly.c \
		cpm-serial.c stdlib.c mpc52xx-psc.c
		src-plat := of.c cuboot-52xx.c cuboot-83xx.c cuboot-85xx.c holly.c \
		cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
		ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
		cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c
		@@ -143,6 +143,7 @@ image-$(CONFIG_DEFAULT_UIMAGE) += uImage
		ifneq ($(CONFIG_DEVICE_TREE),"")
		image-$(CONFIG_PPC_8xx) += cuImage.8xx
		image-$(CONFIG_8260) += cuImage.pq2
		image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx
		image-$(CONFIG_PPC_83xx) += cuImage.83xx
		image-$(CONFIG_PPC_85xx) += cuImage.85xx
		image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony

arch/powerpc/boot/cuboot-52xx.c

0 → 100644

+59 −0

Original line number	Diff line number	Diff line
		/*
		* Old U-boot compatibility for MPC5200
		*
		* Author: Grant Likely <grant.likely@secretlab.ca>
		*
		* Copyright (c) 2007 Secret Lab Technologies Ltd.
		* Copyright (c) 2007 Freescale Semiconductor, Inc.
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms of the GNU General Public License version 2 as published
		* by the Free Software Foundation.
		*/

		#include "ops.h"
		#include "stdio.h"
		#include "io.h"
		#include "cuboot.h"

		#define TARGET_PPC_MPC52xx
		#include "ppcboot.h"

		static bd_t bd;

		static void platform_fixups(void)
		{
		void soc, reg;
		int div;
		u32 sysfreq;


		dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
		dt_fixup_mac_addresses(bd.bi_enetaddr);
		dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);

		/* Unfortunately, the specific model number is encoded in the
		* soc node name in existing dts files -- once that is fixed,
		* this can do a simple path lookup.
		*/
		soc = find_node_by_devtype(NULL, "soc");
		if (soc) {
		setprop(soc, "bus-frequency", &bd.bi_ipbfreq,
		sizeof(bd.bi_ipbfreq));

		if (!dt_xlate_reg(soc, 0, (void*)&reg, NULL))
		return;
		div = in_8(reg + 0x204) & 0x0020 ? 8 : 4;
		sysfreq = bd.bi_busfreq * div;
		setprop(soc, "system-frequency", &sysfreq, sizeof(sysfreq));
		}
		}

		void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
		unsigned long r6, unsigned long r7)
		{
		CUBOOT_INIT();
		ft_init(_dtb_start, _dtb_end - _dtb_start, 32);
		serial_console_init();
		platform_ops.fixups = platform_fixups;
		}

arch/powerpc/boot/mpc52xx-psc.c

0 → 100644

+69 −0

Original line number	Diff line number	Diff line
		/*
		* MPC5200 PSC serial console support.
		*
		* Author: Grant Likely <grant.likely@secretlab.ca>
		*
		* Copyright (c) 2007 Secret Lab Technologies Ltd.
		* Copyright (c) 2007 Freescale Semiconductor, Inc.
		*
		* It is assumed that the firmware (or the platform file) has already set
		* up the port.
		*/

		#include "types.h"
		#include "io.h"
		#include "ops.h"

		/* Programmable Serial Controller (PSC) status register bits */
		#define MPC52xx_PSC_SR 0x04
		#define MPC52xx_PSC_SR_RXRDY 0x0100
		#define MPC52xx_PSC_SR_RXFULL 0x0200
		#define MPC52xx_PSC_SR_TXRDY 0x0400
		#define MPC52xx_PSC_SR_TXEMP 0x0800

		#define MPC52xx_PSC_BUFFER 0x0C

		static void *psc;

		static int psc_open(void)
		{
		/* Assume the firmware has already configured the PSC into
		* uart mode */
		return 0;
		}

		static void psc_putc(unsigned char c)
		{
		while (!(in_be16(psc + MPC52xx_PSC_SR) & MPC52xx_PSC_SR_TXRDY)) ;
		out_8(psc + MPC52xx_PSC_BUFFER, c);
		}

		static unsigned char psc_tstc(void)
		{
		return (in_be16(psc + MPC52xx_PSC_SR) & MPC52xx_PSC_SR_RXRDY) != 0;
		}

		static unsigned char psc_getc(void)
		{
		while (!(in_be16(psc + MPC52xx_PSC_SR) & MPC52xx_PSC_SR_RXRDY)) ;
		return in_8(psc + MPC52xx_PSC_BUFFER);
		}

		int mpc5200_psc_console_init(void devp, struct serial_console_data scdp)
		{
		int n;

		/* Get the base address of the psc registers */
		n = getprop(devp, "virtual-reg", &psc, sizeof(psc));
		if (n != sizeof(psc)) {
		if (!dt_xlate_reg(devp, 0, (void *)&psc, NULL))
		return -1;
		}

		scdp->open = psc_open;
		scdp->putc = psc_putc;
		scdp->getc = psc_getc;
		scdp->tstc = psc_tstc;

		return 0;
		}

arch/powerpc/boot/ops.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -84,6 +84,7 @@ int serial_console_init(void);
		int ns16550_console_init(void devp, struct serial_console_data scdp);
		int mpsc_console_init(void devp, struct serial_console_data scdp);
		int cpm_console_init(void devp, struct serial_console_data scdp);
		int mpc5200_psc_console_init(void devp, struct serial_console_data scdp);
		void simple_alloc_init(char base, unsigned long heap_size,
		unsigned long granularity, unsigned long max_allocs);
		extern void flush_cache(void *, unsigned long);

arch/powerpc/boot/serial.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -126,6 +126,8 @@ int serial_console_init(void)
		dt_is_compatible(devp, "fsl,cpm2-scc-uart") \|\|
		dt_is_compatible(devp, "fsl,cpm2-smc-uart"))
		rc = cpm_console_init(devp, &serial_cd);
		else if (dt_is_compatible(devp, "mpc5200-psc-uart"))
		rc = mpc5200_psc_console_init(devp, &serial_cd);

		/* Add other serial console driver calls here */