mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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Merge branch 'for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-mpc52xx into for-2.6.24
This commit is contained in:
Paul Mackerras
commit
895532a166
@ -2288,6 +2288,8 @@ S: Maintained
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LINUX FOR POWERPC EMBEDDED MPC52XX
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P: Sylvain Munaut
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M: tnt@246tNt.com
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P: Grant Likely
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M: grant.likely@secretlab.ca
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W: http://www.246tNt.com/mpc52xx/
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W: http://www.penguinppc.org/
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L: linuxppc-dev@ozlabs.org
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@ -9,33 +9,16 @@
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* kind, whether express or implied.
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*/
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/reboot.h>
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#include <linux/init.h>
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#include <linux/utsrelease.h>
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#include <linux/seq_file.h>
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#include <linux/string.h>
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#include <linux/root_dev.h>
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#include <linux/initrd.h>
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#include <linux/timer.h>
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#include <linux/pci.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/sections.h>
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#include <asm/pci-bridge.h>
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#include <asm/pgtable.h>
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#include <linux/of.h>
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#include <asm/prom.h>
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#include <asm/time.h>
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#include <asm/machdep.h>
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#include <asm/rtas.h>
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#include <asm/of_device.h>
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#include <asm/of_platform.h>
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#include <asm/mpc52xx.h>
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#define EFIKA_PLATFORM_NAME "Efika"
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@ -15,32 +15,13 @@
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#undef DEBUG
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#include <linux/stddef.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/reboot.h>
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#include <linux/pci.h>
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#include <linux/kdev_t.h>
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#include <linux/major.h>
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#include <linux/console.h>
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#include <linux/delay.h>
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#include <linux/seq_file.h>
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#include <linux/root_dev.h>
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#include <linux/initrd.h>
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#include <asm/system.h>
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#include <asm/atomic.h>
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#include <linux/of.h>
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#include <asm/time.h>
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#include <asm/io.h>
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#include <asm/machdep.h>
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#include <asm/ipic.h>
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#include <asm/irq.h>
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#include <asm/prom.h>
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#include <asm/udbg.h>
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#include <sysdev/fsl_soc.h>
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#include <asm/of_platform.h>
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#include <asm/mpc52xx.h>
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/* ************************************************************************
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@ -49,19 +30,56 @@
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*
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*/
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/*
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* Fix clock configuration.
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*
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* Firmware is supposed to be responsible for this. If you are creating a
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* new board port, do *NOT* duplicate this code. Fix your boot firmware
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* to set it correctly in the first place
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*/
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static void __init
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lite5200_setup_cpu(void)
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lite5200_fix_clock_config(void)
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{
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struct mpc52xx_cdm __iomem *cdm;
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/* Map zones */
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cdm = mpc52xx_find_and_map("mpc5200-cdm");
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if (!cdm) {
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printk(KERN_ERR "%s() failed; expect abnormal behaviour\n",
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__FUNCTION__);
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return;
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}
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/* Use internal 48 Mhz */
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out_8(&cdm->ext_48mhz_en, 0x00);
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out_8(&cdm->fd_enable, 0x01);
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if (in_be32(&cdm->rstcfg) & 0x40) /* Assumes 33Mhz clock */
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out_be16(&cdm->fd_counters, 0x0001);
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else
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out_be16(&cdm->fd_counters, 0x5555);
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/* Unmap the regs */
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iounmap(cdm);
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}
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/*
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* Fix setting of port_config register.
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*
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* Firmware is supposed to be responsible for this. If you are creating a
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* new board port, do *NOT* duplicate this code. Fix your boot firmware
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* to set it correctly in the first place
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*/
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static void __init
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lite5200_fix_port_config(void)
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{
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struct mpc52xx_gpio __iomem *gpio;
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u32 port_config;
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/* Map zones */
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gpio = mpc52xx_find_and_map("mpc5200-gpio");
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if (!gpio) {
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printk(KERN_ERR __FILE__ ": "
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"Error while mapping GPIO register for port config. "
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"Expect some abnormal behavior\n");
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goto error;
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printk(KERN_ERR "%s() failed. expect abnormal behavior\n",
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__FUNCTION__);
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return;
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}
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/* Set port config */
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@ -80,7 +98,6 @@ lite5200_setup_cpu(void)
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out_be32(&gpio->port_config, port_config);
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/* Unmap zone */
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error:
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iounmap(gpio);
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}
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@ -119,9 +136,12 @@ static void __init lite5200_setup_arch(void)
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if (ppc_md.progress)
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ppc_md.progress("lite5200_setup_arch()", 0);
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/* CPU & Port mux setup */
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mpc52xx_setup_cpu(); /* Generic */
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lite5200_setup_cpu(); /* Platorm specific */
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/* Fix things that firmware should have done. */
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lite5200_fix_clock_config();
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lite5200_fix_port_config();
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/* Some mpc5200 & mpc5200b related configuration */
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mpc5200_setup_xlb_arbiter();
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#ifdef CONFIG_PM
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mpc52xx_suspend.board_suspend_prepare = lite5200_suspend_prepare;
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@ -150,20 +170,6 @@ static void __init lite5200_setup_arch(void)
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}
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static void lite5200_show_cpuinfo(struct seq_file *m)
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{
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struct device_node* np = of_find_all_nodes(NULL);
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const char *model = NULL;
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if (np)
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model = of_get_property(np, "model", NULL);
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seq_printf(m, "vendor\t\t: Freescale Semiconductor\n");
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seq_printf(m, "machine\t\t: %s\n", model ? model : "unknown");
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of_node_put(np);
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}
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/*
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* Called very early, MMU is off, device-tree isn't unflattened
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*/
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@ -187,6 +193,5 @@ define_machine(lite5200) {
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.init = mpc52xx_declare_of_platform_devices,
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.init_IRQ = mpc52xx_init_irq,
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.get_irq = mpc52xx_get_irq,
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.show_cpuinfo = lite5200_show_cpuinfo,
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.calibrate_decr = generic_calibrate_decr,
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};
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@ -13,10 +13,9 @@
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#undef DEBUG
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#include <linux/kernel.h>
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#include <linux/of_platform.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/of_platform.h>
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#include <asm/mpc52xx.h>
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@ -76,44 +75,33 @@ mpc52xx_find_ipb_freq(struct device_node *node)
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EXPORT_SYMBOL(mpc52xx_find_ipb_freq);
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/*
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* Configure the XLB arbiter settings to match what Linux expects.
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*/
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void __init
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mpc52xx_setup_cpu(void)
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mpc5200_setup_xlb_arbiter(void)
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{
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struct mpc52xx_cdm __iomem *cdm;
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struct mpc52xx_xlb __iomem *xlb;
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/* Map zones */
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cdm = mpc52xx_find_and_map("mpc5200-cdm");
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xlb = mpc52xx_find_and_map("mpc5200-xlb");
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if (!cdm || !xlb) {
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if (!xlb) {
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printk(KERN_ERR __FILE__ ": "
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"Error while mapping CDM/XLB during mpc52xx_setup_cpu. "
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"Error mapping XLB in mpc52xx_setup_cpu(). "
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"Expect some abnormal behavior\n");
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goto unmap_regs;
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return;
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}
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/* Use internal 48 Mhz */
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out_8(&cdm->ext_48mhz_en, 0x00);
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out_8(&cdm->fd_enable, 0x01);
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if (in_be32(&cdm->rstcfg) & 0x40) /* Assumes 33Mhz clock */
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out_be16(&cdm->fd_counters, 0x0001);
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else
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out_be16(&cdm->fd_counters, 0x5555);
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/* Configure the XLB Arbiter priorities */
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out_be32(&xlb->master_pri_enable, 0xff);
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out_be32(&xlb->master_priority, 0x11111111);
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/* Disable XLB pipelining */
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/* (cfr errate 292. We could do this only just before ATA PIO
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transaction and re-enable it afterwards ...) */
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/* Disable XLB pipelining
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* (cfr errate 292. We could do this only just before ATA PIO
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* transaction and re-enable it afterwards ...)
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*/
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out_be32(&xlb->config, in_be32(&xlb->config) | MPC52xx_XLB_CFG_PLDIS);
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/* Unmap zones */
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unmap_regs:
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if (cdm) iounmap(cdm);
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if (xlb) iounmap(xlb);
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iounmap(xlb);
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}
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void __init
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@ -18,18 +18,9 @@
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#undef DEBUG
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#include <linux/stddef.h>
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#include <linux/init.h>
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#include <linux/sched.h>
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#include <linux/signal.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/hardirq.h>
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#include <linux/of.h>
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#include <asm/io.h>
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#include <asm/processor.h>
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#include <asm/system.h>
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#include <asm/irq.h>
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#include <asm/prom.h>
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#include <asm/mpc52xx.h>
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#include "mpc52xx_pic.h"
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@ -243,7 +243,7 @@ struct mpc52xx_cdm {
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extern void __iomem * mpc52xx_find_and_map(const char *);
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extern unsigned int mpc52xx_find_ipb_freq(struct device_node *node);
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extern void mpc52xx_setup_cpu(void);
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extern void mpc5200_setup_xlb_arbiter(void);
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extern void mpc52xx_declare_of_platform_devices(void);
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extern void mpc52xx_init_irq(void);
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